HBASE-14181 Add Spark DataFrame DataSource to HBase-Spark Module
Signed-off-by: Sean Busbey <busbey@cloudera.com>
This commit is contained in:
Ted Malaska
Sean Busbey
parent
bada19bb54
commit
e95358a7fc
File diff suppressed because it is too large
Load Diff
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@ -168,3 +168,16 @@ message RowRange {
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message MultiRowRangeFilter {
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repeated RowRange row_range_list = 1;
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}
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message SQLPredicatePushDownColumnFilter {
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required bytes column_family = 1;
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required bytes qualifier = 2;
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repeated bytes get_point_list = 3;
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repeated RowRange range_list = 4;
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}
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message SQLPredicatePushDownFilter {
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repeated SQLPredicatePushDownColumnFilter column_filter_list = 1;
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}
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@ -77,6 +77,12 @@
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.apache.spark</groupId>
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<artifactId>spark-sql_${scala.binary.version}</artifactId>
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<version>${spark.version}</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.apache.spark</groupId>
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<artifactId>spark-streaming_${scala.binary.version}</artifactId>
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@ -317,6 +323,12 @@
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.apache.hbase</groupId>
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<artifactId>hbase-protocol</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>org.apache.hbase</groupId>
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<artifactId>hbase-hadoop-compat</artifactId>
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@ -0,0 +1,186 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.spark;
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import com.google.protobuf.ByteString;
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import com.google.protobuf.InvalidProtocolBufferException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hadoop.hbase.Cell;
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import org.apache.hadoop.hbase.exceptions.DeserializationException;
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import org.apache.hadoop.hbase.filter.FilterBase;
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import org.apache.hadoop.hbase.protobuf.generated.FilterProtos;
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import org.apache.hadoop.hbase.util.ByteStringer;
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import scala.collection.mutable.MutableList;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* This filter will push down all qualifier logic given to us
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* by SparkSQL so that we have make the filters at the region server level
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* and avoid sending the data back to the client to be filtered.
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*/
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public class SparkSQLPushDownFilter extends FilterBase {
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protected static final Log log = LogFactory.getLog(SparkSQLPushDownFilter.class);
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HashMap<ColumnFamilyQualifierMapKeyWrapper, ColumnFilter> columnFamilyQualifierFilterMap;
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public SparkSQLPushDownFilter(HashMap<ColumnFamilyQualifierMapKeyWrapper,
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ColumnFilter> columnFamilyQualifierFilterMap) {
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this.columnFamilyQualifierFilterMap = columnFamilyQualifierFilterMap;
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}
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/**
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* This method will find the related filter logic for the given
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* column family and qualifier then execute it. It will also
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* not clone the in coming cell to avoid extra object creation
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*
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* @param c The Cell to be validated
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* @return ReturnCode object to determine if skipping is required
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* @throws IOException
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*/
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@Override
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public ReturnCode filterKeyValue(Cell c) throws IOException {
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//Get filter if one exist
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ColumnFilter filter =
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columnFamilyQualifierFilterMap.get(new ColumnFamilyQualifierMapKeyWrapper(
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c.getFamilyArray(),
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c.getFamilyOffset(),
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c.getFamilyLength(),
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c.getQualifierArray(),
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c.getQualifierOffset(),
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c.getQualifierLength()));
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if (filter == null) {
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//If no filter then just include values
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return ReturnCode.INCLUDE;
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} else {
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//If there is a filter then run validation
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if (filter.validate(c.getValueArray(), c.getValueOffset(), c.getValueLength())) {
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return ReturnCode.INCLUDE;
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}
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}
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//If validation fails then skip whole row
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return ReturnCode.NEXT_ROW;
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}
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/**
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* @param pbBytes A pb serialized instance
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* @return An instance of SparkSQLPushDownFilter
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* @throws org.apache.hadoop.hbase.exceptions.DeserializationException
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*/
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@SuppressWarnings("unused")
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public static SparkSQLPushDownFilter parseFrom(final byte[] pbBytes)
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throws DeserializationException {
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HashMap<ColumnFamilyQualifierMapKeyWrapper,
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ColumnFilter> columnFamilyQualifierFilterMap = new HashMap<>();
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FilterProtos.SQLPredicatePushDownFilter proto;
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try {
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proto = FilterProtos.SQLPredicatePushDownFilter.parseFrom(pbBytes);
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} catch (InvalidProtocolBufferException e) {
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throw new DeserializationException(e);
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}
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final List<FilterProtos.SQLPredicatePushDownColumnFilter> columnFilterListList =
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proto.getColumnFilterListList();
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for (FilterProtos.SQLPredicatePushDownColumnFilter columnFilter: columnFilterListList) {
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byte[] columnFamily = columnFilter.getColumnFamily().toByteArray();
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byte[] qualifier = columnFilter.getQualifier().toByteArray();
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final ColumnFamilyQualifierMapKeyWrapper columnFamilyQualifierMapKeyWrapper =
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new ColumnFamilyQualifierMapKeyWrapper(columnFamily, 0, columnFamily.length,
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qualifier, 0, qualifier.length);
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final MutableList<byte[]> points = new MutableList<>();
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final MutableList<ScanRange> scanRanges = new MutableList<>();
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for (ByteString byteString: columnFilter.getGetPointListList()) {
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points.$plus$eq(byteString.toByteArray());
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}
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for (FilterProtos.RowRange rowRange: columnFilter.getRangeListList()) {
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ScanRange scanRange = new ScanRange(rowRange.getStopRow().toByteArray(),
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rowRange.getStopRowInclusive(),
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rowRange.getStartRow().toByteArray(),
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rowRange.getStartRowInclusive());
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scanRanges.$plus$eq(scanRange);
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}
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final ColumnFilter columnFilterObj = new ColumnFilter(null, null, points, scanRanges);
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columnFamilyQualifierFilterMap.put(columnFamilyQualifierMapKeyWrapper, columnFilterObj);
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}
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return new SparkSQLPushDownFilter(columnFamilyQualifierFilterMap);
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}
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/**
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* @return The filter serialized using pb
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*/
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public byte[] toByteArray() {
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FilterProtos.SQLPredicatePushDownFilter.Builder builder =
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FilterProtos.SQLPredicatePushDownFilter.newBuilder();
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FilterProtos.SQLPredicatePushDownColumnFilter.Builder columnBuilder =
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FilterProtos.SQLPredicatePushDownColumnFilter.newBuilder();
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FilterProtos.RowRange.Builder rowRangeBuilder = FilterProtos.RowRange.newBuilder();
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for (Map.Entry<ColumnFamilyQualifierMapKeyWrapper, ColumnFilter> entry :
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columnFamilyQualifierFilterMap.entrySet()) {
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columnBuilder.setColumnFamily(
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ByteStringer.wrap(entry.getKey().cloneColumnFamily()));
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columnBuilder.setQualifier(
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ByteStringer.wrap(entry.getKey().cloneQualifier()));
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final MutableList<byte[]> points = entry.getValue().points();
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int pointLength = points.length();
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for (int i = 0; i < pointLength; i++) {
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byte[] point = points.get(i).get();
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columnBuilder.addGetPointList(ByteStringer.wrap(point));
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}
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final MutableList<ScanRange> ranges = entry.getValue().ranges();
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int rangeLength = ranges.length();
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for (int i = 0; i < rangeLength; i++) {
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ScanRange scanRange = ranges.get(i).get();
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rowRangeBuilder.clear();
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rowRangeBuilder.setStartRow(ByteStringer.wrap(scanRange.lowerBound()));
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rowRangeBuilder.setStopRow(ByteStringer.wrap(scanRange.upperBound()));
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rowRangeBuilder.setStartRowInclusive(scanRange.isLowerBoundEqualTo());
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rowRangeBuilder.setStopRowInclusive(scanRange.isUpperBoundEqualTo());
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columnBuilder.addRangeList(rowRangeBuilder.build());
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}
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builder.addColumnFilterList(columnBuilder.build());
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columnBuilder.clear();
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}
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return builder.build().toByteArray();
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}
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}
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@ -0,0 +1,73 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.spark
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import org.apache.hadoop.hbase.util.Bytes
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/**
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* A wrapper class that will allow both columnFamily and qualifier to
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* be the key of a hashMap. Also allow for finding the value in a hashmap
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* with out cloning the HBase value from the HBase Cell object
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* @param columnFamily ColumnFamily byte array
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* @param columnFamilyOffSet Offset of columnFamily value in the array
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* @param columnFamilyLength Length of the columnFamily value in the columnFamily array
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* @param qualifier Qualifier byte array
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* @param qualifierOffSet Offset of qualifier value in the array
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* @param qualifierLength Length of the qualifier value with in the array
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*/
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class ColumnFamilyQualifierMapKeyWrapper(val columnFamily:Array[Byte],
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val columnFamilyOffSet:Int,
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val columnFamilyLength:Int,
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val qualifier:Array[Byte],
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val qualifierOffSet:Int,
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val qualifierLength:Int)
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extends Serializable{
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override def equals(other:Any): Boolean = {
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val otherWrapper = other.asInstanceOf[ColumnFamilyQualifierMapKeyWrapper]
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Bytes.compareTo(columnFamily,
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columnFamilyOffSet,
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columnFamilyLength,
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otherWrapper.columnFamily,
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otherWrapper.columnFamilyOffSet,
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otherWrapper.columnFamilyLength) == 0 && Bytes.compareTo(qualifier,
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qualifierOffSet,
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qualifierLength,
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otherWrapper.qualifier,
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otherWrapper.qualifierOffSet,
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otherWrapper.qualifierLength) == 0
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}
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override def hashCode():Int = {
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Bytes.hashCode(columnFamily, columnFamilyOffSet, columnFamilyLength) +
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Bytes.hashCode(qualifier, qualifierOffSet, qualifierLength)
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}
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def cloneColumnFamily():Array[Byte] = {
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val resultArray = new Array[Byte](columnFamilyLength)
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System.arraycopy(columnFamily, columnFamilyOffSet, resultArray, 0, columnFamilyLength)
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resultArray
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}
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def cloneQualifier():Array[Byte] = {
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val resultArray = new Array[Byte](qualifierLength)
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System.arraycopy(qualifier, qualifierOffSet, resultArray, 0, qualifierLength)
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resultArray
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}
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}
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@ -0,0 +1,982 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.spark
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import java.util
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import java.util.concurrent.ConcurrentLinkedQueue
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import org.apache.hadoop.hbase.client.{ConnectionFactory, Get, Result, Scan}
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import org.apache.hadoop.hbase.types._
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import org.apache.hadoop.hbase.util.{SimplePositionedMutableByteRange, PositionedByteRange, Bytes}
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import org.apache.hadoop.hbase.{TableName, HBaseConfiguration}
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import org.apache.spark.Logging
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import org.apache.spark.rdd.RDD
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import org.apache.spark.sql.types.DataType
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import org.apache.spark.sql.{Row, SQLContext}
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import org.apache.spark.sql.sources._
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import org.apache.spark.sql.types._
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import scala.collection.mutable
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/**
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* DefaultSource for integration with Spark's dataframe datasources.
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* This class will produce a relationProvider based on input given to it from spark
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*
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* In all this DefaultSource support the following datasource functionality
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* - Scan range pruning through filter push down logic based on rowKeys
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* - Filter push down logic on HBase Cells
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* - Qualifier filtering based on columns used in the SparkSQL statement
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* - Type conversions of basic SQL types. All conversions will be
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* Through the HBase Bytes object commands.
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*/
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class DefaultSource extends RelationProvider {
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val TABLE_KEY:String = "hbase.table"
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val SCHEMA_COLUMNS_MAPPING_KEY:String = "hbase.columns.mapping"
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val BATCHING_NUM_KEY:String = "hbase.batching.num"
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val CACHING_NUM_KEY:String = "hbase.caching.num"
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val HBASE_CONFIG_RESOURCES_LOCATIONS:String = "hbase.config.resources"
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val USE_HBASE_CONTEXT:String = "hbase.use.hbase.context"
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/**
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* Is given input from SparkSQL to construct a BaseRelation
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* @param sqlContext SparkSQL context
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* @param parameters Parameters given to us from SparkSQL
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* @return A BaseRelation Object
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*/
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override def createRelation(sqlContext: SQLContext,
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parameters: Map[String, String]):
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BaseRelation = {
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val tableName = parameters.get(TABLE_KEY)
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if (tableName.isEmpty)
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new IllegalArgumentException("Invalid value for " + TABLE_KEY +" '" + tableName + "'")
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val schemaMappingString = parameters.getOrElse(SCHEMA_COLUMNS_MAPPING_KEY, "")
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val batchingNumStr = parameters.getOrElse(BATCHING_NUM_KEY, "1000")
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val cachingNumStr = parameters.getOrElse(CACHING_NUM_KEY, "1000")
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val hbaseConfigResources = parameters.getOrElse(HBASE_CONFIG_RESOURCES_LOCATIONS, "")
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val useHBaseReources = parameters.getOrElse(USE_HBASE_CONTEXT, "true")
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val batchingNum:Int = try {
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batchingNumStr.toInt
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} catch {
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case e:NumberFormatException => throw
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new IllegalArgumentException("Invalid value for " + BATCHING_NUM_KEY +" '"
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+ batchingNumStr + "'", e)
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}
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val cachingNum:Int = try {
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cachingNumStr.toInt
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} catch {
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case e:NumberFormatException => throw
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new IllegalArgumentException("Invalid value for " + CACHING_NUM_KEY +" '"
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+ cachingNumStr + "'", e)
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}
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new HBaseRelation(tableName.get,
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generateSchemaMappingMap(schemaMappingString),
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batchingNum.toInt,
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cachingNum.toInt,
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hbaseConfigResources,
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useHBaseReources.equalsIgnoreCase("true"))(sqlContext)
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}
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/**
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* Reads the SCHEMA_COLUMNS_MAPPING_KEY and converts it to a map of
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* SchemaQualifierDefinitions with the original sql column name as the key
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* @param schemaMappingString The schema mapping string from the SparkSQL map
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* @return A map of definitions keyed by the SparkSQL column name
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*/
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def generateSchemaMappingMap(schemaMappingString:String):
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java.util.HashMap[String, SchemaQualifierDefinition] = {
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try {
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val columnDefinitions = schemaMappingString.split(',')
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val resultingMap = new java.util.HashMap[String, SchemaQualifierDefinition]()
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columnDefinitions.map(cd => {
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val parts = cd.trim.split(' ')
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//Make sure we get three parts
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//<ColumnName> <ColumnType> <ColumnFamily:Qualifier>
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if (parts.length == 3) {
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val hbaseDefinitionParts = if (parts(2).charAt(0) == ':') {
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Array[String]("", "key")
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} else {
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parts(2).split(':')
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}
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resultingMap.put(parts(0), new SchemaQualifierDefinition(parts(0),
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parts(1), hbaseDefinitionParts(0), hbaseDefinitionParts(1)))
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} else {
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throw new IllegalArgumentException("Invalid value for schema mapping '" + cd +
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"' should be '<columnName> <columnType> <columnFamily>:<qualifier>' " +
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||||
"for columns and '<columnName> <columnType> :<qualifier>' for rowKeys")
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}
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})
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resultingMap
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} catch {
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case e:Exception => throw
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new IllegalArgumentException("Invalid value for " + SCHEMA_COLUMNS_MAPPING_KEY +
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||||
" '" + schemaMappingString + "'", e )
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||||
}
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||||
}
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||||
}
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/**
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* Implementation of Spark BaseRelation that will build up our scan logic
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* , do the scan pruning, filter push down, and value conversions
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*
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* @param tableName HBase table that we plan to read from
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||||
* @param schemaMappingDefinition SchemaMapping information to map HBase
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* Qualifiers to SparkSQL columns
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||||
* @param batchingNum The batching number to be applied to the
|
||||
* scan object
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||||
* @param cachingNum The caching number to be applied to the
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||||
* scan object
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||||
* @param configResources Optional comma separated list of config resources
|
||||
* to get based on their URI
|
||||
* @param useHBaseContext If true this will look to see if
|
||||
* HBaseContext.latest is populated to use that
|
||||
* connection information
|
||||
* @param sqlContext SparkSQL context
|
||||
*/
|
||||
class HBaseRelation (val tableName:String,
|
||||
val schemaMappingDefinition:
|
||||
java.util.HashMap[String, SchemaQualifierDefinition],
|
||||
val batchingNum:Int,
|
||||
val cachingNum:Int,
|
||||
val configResources:String,
|
||||
val useHBaseContext:Boolean) (
|
||||
@transient val sqlContext:SQLContext)
|
||||
extends BaseRelation with PrunedFilteredScan with Logging {
|
||||
|
||||
//create or get latest HBaseContext
|
||||
@transient val hbaseContext:HBaseContext = if (useHBaseContext) {
|
||||
LatestHBaseContextCache.latest
|
||||
} else {
|
||||
val config = HBaseConfiguration.create()
|
||||
configResources.split(",").foreach( r => config.addResource(r))
|
||||
new HBaseContext(sqlContext.sparkContext, config)
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates a Spark SQL schema object so Spark SQL knows what is being
|
||||
* provided by this BaseRelation
|
||||
*
|
||||
* @return schema generated from the SCHEMA_COLUMNS_MAPPING_KEY value
|
||||
*/
|
||||
override def schema: StructType = {
|
||||
|
||||
val metadataBuilder = new MetadataBuilder()
|
||||
|
||||
val structFieldArray = new Array[StructField](schemaMappingDefinition.size())
|
||||
|
||||
val schemaMappingDefinitionIt = schemaMappingDefinition.values().iterator()
|
||||
var indexCounter = 0
|
||||
while (schemaMappingDefinitionIt.hasNext) {
|
||||
val c = schemaMappingDefinitionIt.next()
|
||||
|
||||
val metadata = metadataBuilder.putString("name", c.columnName).build()
|
||||
val structField =
|
||||
new StructField(c.columnName, c.columnSparkSqlType, nullable = true, metadata)
|
||||
|
||||
structFieldArray(indexCounter) = structField
|
||||
indexCounter += 1
|
||||
}
|
||||
|
||||
val result = new StructType(structFieldArray)
|
||||
result
|
||||
}
|
||||
|
||||
/**
|
||||
* Here we are building the functionality to populate the resulting RDD[Row]
|
||||
* Here is where we will do the following:
|
||||
* - Filter push down
|
||||
* - Scan or GetList pruning
|
||||
* - Executing our scan(s) or/and GetList to generate result
|
||||
*
|
||||
* @param requiredColumns The columns that are being requested by the requesting query
|
||||
* @param filters The filters that are being applied by the requesting query
|
||||
* @return RDD will all the results from HBase needed for SparkSQL to
|
||||
* execute the query on
|
||||
*/
|
||||
override def buildScan(requiredColumns: Array[String], filters: Array[Filter]): RDD[Row] = {
|
||||
|
||||
val columnFilterCollection = buildColumnFilterCollection(filters)
|
||||
|
||||
val requiredQualifierDefinitionArray = new mutable.MutableList[SchemaQualifierDefinition]
|
||||
requiredColumns.foreach( c => {
|
||||
val definition = schemaMappingDefinition.get(c)
|
||||
if (definition.columnFamilyBytes.length > 0) {
|
||||
requiredQualifierDefinitionArray += definition
|
||||
}
|
||||
})
|
||||
|
||||
//Create a local variable so that scala doesn't have to
|
||||
// serialize the whole HBaseRelation Object
|
||||
val serializableDefinitionMap = schemaMappingDefinition
|
||||
|
||||
|
||||
//retain the information for unit testing checks
|
||||
DefaultSourceStaticUtils.populateLatestExecutionRules(columnFilterCollection,
|
||||
requiredQualifierDefinitionArray)
|
||||
var resultRDD: RDD[Row] = null
|
||||
|
||||
if (columnFilterCollection != null) {
|
||||
val pushDownFilterJava =
|
||||
new SparkSQLPushDownFilter(
|
||||
columnFilterCollection.generateFamilyQualifiterFilterMap(schemaMappingDefinition))
|
||||
|
||||
val getList = new util.ArrayList[Get]()
|
||||
val rddList = new util.ArrayList[RDD[Row]]()
|
||||
|
||||
val it = columnFilterCollection.columnFilterMap.iterator
|
||||
while (it.hasNext) {
|
||||
val e = it.next()
|
||||
val columnDefinition = schemaMappingDefinition.get(e._1)
|
||||
//check is a rowKey
|
||||
if (columnDefinition != null && columnDefinition.columnFamily.isEmpty) {
|
||||
//add points to getList
|
||||
e._2.points.foreach(p => {
|
||||
val get = new Get(p)
|
||||
requiredQualifierDefinitionArray.foreach( d =>
|
||||
get.addColumn(d.columnFamilyBytes, d.qualifierBytes))
|
||||
getList.add(get)
|
||||
})
|
||||
|
||||
val rangeIt = e._2.ranges.iterator
|
||||
|
||||
while (rangeIt.hasNext) {
|
||||
val r = rangeIt.next()
|
||||
|
||||
val scan = new Scan()
|
||||
scan.setBatch(batchingNum)
|
||||
scan.setCaching(cachingNum)
|
||||
requiredQualifierDefinitionArray.foreach( d =>
|
||||
scan.addColumn(d.columnFamilyBytes, d.qualifierBytes))
|
||||
|
||||
if (pushDownFilterJava.columnFamilyQualifierFilterMap.size() > 0) {
|
||||
scan.setFilter(pushDownFilterJava)
|
||||
}
|
||||
|
||||
//Check if there is a lower bound
|
||||
if (r.lowerBound != null && r.lowerBound.length > 0) {
|
||||
|
||||
if (r.isLowerBoundEqualTo) {
|
||||
//HBase startRow is inclusive: Therefore it acts like isLowerBoundEqualTo
|
||||
// by default
|
||||
scan.setStartRow(r.lowerBound)
|
||||
} else {
|
||||
//Since we don't equalTo we want the next value we need
|
||||
// to add another byte to the start key. That new byte will be
|
||||
// the min byte value.
|
||||
val newArray = new Array[Byte](r.lowerBound.length + 1)
|
||||
System.arraycopy(r.lowerBound, 0, newArray, 0, r.lowerBound.length)
|
||||
|
||||
//new Min Byte
|
||||
newArray(r.lowerBound.length) = Byte.MinValue
|
||||
scan.setStartRow(newArray)
|
||||
}
|
||||
}
|
||||
|
||||
//Check if there is a upperBound
|
||||
if (r.upperBound != null && r.upperBound.length > 0) {
|
||||
if (r.isUpperBoundEqualTo) {
|
||||
//HBase stopRow is exclusive: therefore it DOESN'T ast like isUpperBoundEqualTo
|
||||
// by default. So we need to add a new max byte to the stopRow key
|
||||
val newArray = new Array[Byte](r.upperBound.length + 1)
|
||||
System.arraycopy(r.upperBound, 0, newArray, 0, r.upperBound.length)
|
||||
|
||||
//New Max Bytes
|
||||
newArray(r.upperBound.length) = Byte.MaxValue
|
||||
|
||||
scan.setStopRow(newArray)
|
||||
} else {
|
||||
//Here equalTo is false for Upper bound which is exclusive and
|
||||
// HBase stopRow acts like that by default so no need to mutate the
|
||||
// rowKey
|
||||
scan.setStopRow(r.upperBound)
|
||||
}
|
||||
}
|
||||
|
||||
val rdd = hbaseContext.hbaseRDD(TableName.valueOf(tableName), scan).map(r => {
|
||||
Row.fromSeq(requiredColumns.map(c =>
|
||||
DefaultSourceStaticUtils.getValue(c, serializableDefinitionMap, r._2)))
|
||||
})
|
||||
rddList.add(rdd)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//If there is more then one RDD then we have to union them together
|
||||
for (i <- 0 until rddList.size()) {
|
||||
if (resultRDD == null) resultRDD = rddList.get(i)
|
||||
else resultRDD = resultRDD.union(rddList.get(i))
|
||||
|
||||
}
|
||||
|
||||
//If there are gets then we can get them from the driver and union that rdd in
|
||||
// with the rest of the values.
|
||||
if (getList.size() > 0) {
|
||||
val connection = ConnectionFactory.createConnection(hbaseContext.tmpHdfsConfiguration)
|
||||
try {
|
||||
val table = connection.getTable(TableName.valueOf(tableName))
|
||||
try {
|
||||
val results = table.get(getList)
|
||||
val rowList = mutable.MutableList[Row]()
|
||||
for (i <- 0 until results.length) {
|
||||
val rowArray = requiredColumns.map(c =>
|
||||
DefaultSourceStaticUtils.getValue(c, schemaMappingDefinition, results(i)))
|
||||
rowList += Row.fromSeq(rowArray)
|
||||
}
|
||||
val getRDD = sqlContext.sparkContext.parallelize(rowList)
|
||||
if (resultRDD == null) resultRDD = getRDD
|
||||
else {
|
||||
resultRDD = resultRDD.union(getRDD)
|
||||
}
|
||||
} finally {
|
||||
table.close()
|
||||
}
|
||||
} finally {
|
||||
connection.close()
|
||||
}
|
||||
}
|
||||
}
|
||||
if (resultRDD == null) {
|
||||
val scan = new Scan()
|
||||
scan.setBatch(batchingNum)
|
||||
scan.setCaching(cachingNum)
|
||||
requiredQualifierDefinitionArray.foreach( d =>
|
||||
scan.addColumn(d.columnFamilyBytes, d.qualifierBytes))
|
||||
|
||||
val rdd = hbaseContext.hbaseRDD(TableName.valueOf(tableName), scan).map(r => {
|
||||
Row.fromSeq(requiredColumns.map(c => DefaultSourceStaticUtils.getValue(c,
|
||||
serializableDefinitionMap, r._2)))
|
||||
})
|
||||
resultRDD=rdd
|
||||
}
|
||||
resultRDD
|
||||
}
|
||||
|
||||
/**
|
||||
* Root recursive function that will loop over the filters provided by
|
||||
* SparkSQL. Some filters are AND or OR functions and contain additional filters
|
||||
* hence the need for recursion.
|
||||
*
|
||||
* @param filters Filters provided by SparkSQL.
|
||||
* Filters are joined with the AND operater
|
||||
* @return A ColumnFilterCollection whish is a consolidated construct to
|
||||
* hold the high level filter information
|
||||
*/
|
||||
def buildColumnFilterCollection(filters: Array[Filter]): ColumnFilterCollection = {
|
||||
var superCollection: ColumnFilterCollection = null
|
||||
|
||||
filters.foreach( f => {
|
||||
val parentCollection = new ColumnFilterCollection
|
||||
buildColumnFilterCollection(parentCollection, f)
|
||||
if (superCollection == null)
|
||||
superCollection = parentCollection
|
||||
else
|
||||
superCollection.mergeIntersect(parentCollection)
|
||||
})
|
||||
superCollection
|
||||
}
|
||||
|
||||
/**
|
||||
* Recursive function that will work to convert Spark Filter
|
||||
* objects to ColumnFilterCollection
|
||||
*
|
||||
* @param parentFilterCollection Parent ColumnFilterCollection
|
||||
* @param filter Current given filter from SparkSQL
|
||||
*/
|
||||
def buildColumnFilterCollection(parentFilterCollection:ColumnFilterCollection,
|
||||
filter:Filter): Unit = {
|
||||
filter match {
|
||||
|
||||
case EqualTo(attr, value) =>
|
||||
parentFilterCollection.mergeUnion(attr,
|
||||
new ColumnFilter(DefaultSourceStaticUtils.getByteValue(attr,
|
||||
schemaMappingDefinition, value.toString)))
|
||||
|
||||
case LessThan(attr, value) =>
|
||||
parentFilterCollection.mergeUnion(attr, new ColumnFilter(null,
|
||||
new ScanRange(DefaultSourceStaticUtils.getByteValue(attr,
|
||||
schemaMappingDefinition, value.toString), false,
|
||||
new Array[Byte](0), true)))
|
||||
|
||||
case GreaterThan(attr, value) =>
|
||||
parentFilterCollection.mergeUnion(attr, new ColumnFilter(null,
|
||||
new ScanRange(null, true, DefaultSourceStaticUtils.getByteValue(attr,
|
||||
schemaMappingDefinition, value.toString), false)))
|
||||
|
||||
case LessThanOrEqual(attr, value) =>
|
||||
parentFilterCollection.mergeUnion(attr, new ColumnFilter(null,
|
||||
new ScanRange(DefaultSourceStaticUtils.getByteValue(attr,
|
||||
schemaMappingDefinition, value.toString), true,
|
||||
new Array[Byte](0), true)))
|
||||
|
||||
case GreaterThanOrEqual(attr, value) =>
|
||||
parentFilterCollection.mergeUnion(attr, new ColumnFilter(null,
|
||||
new ScanRange(null, true, DefaultSourceStaticUtils.getByteValue(attr,
|
||||
schemaMappingDefinition, value.toString), true)))
|
||||
|
||||
case Or(left, right) =>
|
||||
buildColumnFilterCollection(parentFilterCollection, left)
|
||||
val rightSideCollection = new ColumnFilterCollection
|
||||
buildColumnFilterCollection(rightSideCollection, right)
|
||||
parentFilterCollection.mergeUnion(rightSideCollection)
|
||||
case And(left, right) =>
|
||||
buildColumnFilterCollection(parentFilterCollection, left)
|
||||
val rightSideCollection = new ColumnFilterCollection
|
||||
buildColumnFilterCollection(rightSideCollection, right)
|
||||
parentFilterCollection.mergeIntersect(rightSideCollection)
|
||||
case _ => //nothing
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Construct to contains column data that spend SparkSQL and HBase
|
||||
*
|
||||
* @param columnName SparkSQL column name
|
||||
* @param colType SparkSQL column type
|
||||
* @param columnFamily HBase column family
|
||||
* @param qualifier HBase qualifier name
|
||||
*/
|
||||
case class SchemaQualifierDefinition(columnName:String,
|
||||
colType:String,
|
||||
columnFamily:String,
|
||||
qualifier:String) extends Serializable {
|
||||
val columnFamilyBytes = Bytes.toBytes(columnFamily)
|
||||
val qualifierBytes = Bytes.toBytes(qualifier)
|
||||
val columnSparkSqlType:DataType = if (colType.equals("BOOLEAN")) BooleanType
|
||||
else if (colType.equals("TINYINT")) IntegerType
|
||||
else if (colType.equals("INT")) IntegerType
|
||||
else if (colType.equals("BIGINT")) LongType
|
||||
else if (colType.equals("FLOAT")) FloatType
|
||||
else if (colType.equals("DOUBLE")) DoubleType
|
||||
else if (colType.equals("STRING")) StringType
|
||||
else if (colType.equals("TIMESTAMP")) TimestampType
|
||||
else if (colType.equals("DECIMAL")) StringType //DataTypes.createDecimalType(precision, scale)
|
||||
else throw new IllegalArgumentException("Unsupported column type :" + colType)
|
||||
}
|
||||
|
||||
/**
|
||||
* Construct to contain a single scan ranges information. Also
|
||||
* provide functions to merge with other scan ranges through AND
|
||||
* or OR operators
|
||||
*
|
||||
* @param upperBound Upper bound of scan
|
||||
* @param isUpperBoundEqualTo Include upper bound value in the results
|
||||
* @param lowerBound Lower bound of scan
|
||||
* @param isLowerBoundEqualTo Include lower bound value in the results
|
||||
*/
|
||||
class ScanRange(var upperBound:Array[Byte], var isUpperBoundEqualTo:Boolean,
|
||||
var lowerBound:Array[Byte], var isLowerBoundEqualTo:Boolean)
|
||||
extends Serializable {
|
||||
|
||||
/**
|
||||
* Function to merge another scan object through a AND operation
|
||||
* @param other Other scan object
|
||||
*/
|
||||
def mergeIntersect(other:ScanRange): Unit = {
|
||||
val upperBoundCompare = compareRange(upperBound, other.upperBound)
|
||||
val lowerBoundCompare = compareRange(lowerBound, other.lowerBound)
|
||||
|
||||
upperBound = if (upperBoundCompare <0) upperBound else other.upperBound
|
||||
lowerBound = if (lowerBoundCompare >0) lowerBound else other.lowerBound
|
||||
|
||||
isLowerBoundEqualTo = if (lowerBoundCompare == 0)
|
||||
isLowerBoundEqualTo && other.isLowerBoundEqualTo
|
||||
else isLowerBoundEqualTo
|
||||
|
||||
isUpperBoundEqualTo = if (upperBoundCompare == 0)
|
||||
isUpperBoundEqualTo && other.isUpperBoundEqualTo
|
||||
else isUpperBoundEqualTo
|
||||
}
|
||||
|
||||
/**
|
||||
* Function to merge another scan object through a OR operation
|
||||
* @param other Other scan object
|
||||
*/
|
||||
def mergeUnion(other:ScanRange): Unit = {
|
||||
|
||||
val upperBoundCompare = compareRange(upperBound, other.upperBound)
|
||||
val lowerBoundCompare = compareRange(lowerBound, other.lowerBound)
|
||||
|
||||
upperBound = if (upperBoundCompare >0) upperBound else other.upperBound
|
||||
lowerBound = if (lowerBoundCompare <0) lowerBound else other.lowerBound
|
||||
|
||||
isLowerBoundEqualTo = if (lowerBoundCompare == 0)
|
||||
isLowerBoundEqualTo || other.isLowerBoundEqualTo
|
||||
else isLowerBoundEqualTo
|
||||
|
||||
isUpperBoundEqualTo = if (upperBoundCompare == 0)
|
||||
isUpperBoundEqualTo || other.isUpperBoundEqualTo
|
||||
else isUpperBoundEqualTo
|
||||
}
|
||||
|
||||
/**
|
||||
* Common function to see if this scan over laps with another
|
||||
*
|
||||
* Reference Visual
|
||||
*
|
||||
* A B
|
||||
* |---------------------------|
|
||||
* LL--------------LU
|
||||
* RL--------------RU
|
||||
*
|
||||
* A = lowest value is byte[0]
|
||||
* B = highest value is null
|
||||
* LL = Left Lower Bound
|
||||
* LU = Left Upper Bound
|
||||
* RL = Right Lower Bound
|
||||
* RU = Right Upper Bound
|
||||
*
|
||||
* @param other Other scan object
|
||||
* @return True is overlap false is not overlap
|
||||
*/
|
||||
def doesOverLap(other:ScanRange): Boolean = {
|
||||
|
||||
var leftRange:ScanRange = null
|
||||
var rightRange:ScanRange = null
|
||||
|
||||
//First identify the Left range
|
||||
// Also lower bound can't be null
|
||||
if (Bytes.compareTo(lowerBound, other.lowerBound) <=0) {
|
||||
leftRange = this
|
||||
rightRange = other
|
||||
} else {
|
||||
leftRange = other
|
||||
rightRange = this
|
||||
}
|
||||
|
||||
//Then see if leftRange goes to null or if leftRange.upperBound
|
||||
// upper is greater or equals to rightRange.lowerBound
|
||||
leftRange.upperBound == null ||
|
||||
Bytes.compareTo(leftRange.upperBound, rightRange.lowerBound) >= 0
|
||||
}
|
||||
|
||||
/**
|
||||
* Special compare logic because we can have null values
|
||||
* for left or right bound
|
||||
*
|
||||
* @param left Left byte array
|
||||
* @param right Right byte array
|
||||
* @return 0 for equals 1 is left is greater and -1 is right is greater
|
||||
*/
|
||||
def compareRange(left:Array[Byte], right:Array[Byte]): Int = {
|
||||
if (left == null && right == null) 0
|
||||
else if (left == null && right != null) 1
|
||||
else if (left != null && right == null) -1
|
||||
else Bytes.compareTo(left, right)
|
||||
}
|
||||
override def toString:String = {
|
||||
"ScanRange:(" + Bytes.toString(upperBound) + "," + isUpperBoundEqualTo + "," +
|
||||
Bytes.toString(lowerBound) + "," + isLowerBoundEqualTo + ")"
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Contains information related to a filters for a given column.
|
||||
* This can contain many ranges or points.
|
||||
*
|
||||
* @param currentPoint the initial point when the filter is created
|
||||
* @param currentRange the initial scanRange when the filter is created
|
||||
*/
|
||||
class ColumnFilter (currentPoint:Array[Byte] = null,
|
||||
currentRange:ScanRange = null,
|
||||
var points:mutable.MutableList[Array[Byte]] =
|
||||
new mutable.MutableList[Array[Byte]](),
|
||||
var ranges:mutable.MutableList[ScanRange] =
|
||||
new mutable.MutableList[ScanRange]() ) extends Serializable {
|
||||
//Collection of ranges
|
||||
if (currentRange != null ) ranges.+=(currentRange)
|
||||
|
||||
//Collection of points
|
||||
if (currentPoint != null) points.+=(currentPoint)
|
||||
|
||||
/**
|
||||
* This will validate a give value through the filter's points and/or ranges
|
||||
* the result will be if the value passed the filter
|
||||
*
|
||||
* @param value Value to be validated
|
||||
* @param valueOffSet The offset of the value
|
||||
* @param valueLength The length of the value
|
||||
* @return True is the value passes the filter false if not
|
||||
*/
|
||||
def validate(value:Array[Byte], valueOffSet:Int, valueLength:Int):Boolean = {
|
||||
var result = false
|
||||
|
||||
points.foreach( p => {
|
||||
if (Bytes.equals(p, 0, p.length, value, valueOffSet, valueLength)) {
|
||||
result = true
|
||||
}
|
||||
})
|
||||
|
||||
ranges.foreach( r => {
|
||||
val upperBoundPass = r.upperBound == null ||
|
||||
(r.isUpperBoundEqualTo &&
|
||||
Bytes.compareTo(r.upperBound, 0, r.upperBound.length,
|
||||
value, valueOffSet, valueLength) >= 0) ||
|
||||
(!r.isUpperBoundEqualTo &&
|
||||
Bytes.compareTo(r.upperBound, 0, r.upperBound.length,
|
||||
value, valueOffSet, valueLength) > 0)
|
||||
|
||||
val lowerBoundPass = r.lowerBound == null || r.lowerBound.length == 0
|
||||
(r.isLowerBoundEqualTo &&
|
||||
Bytes.compareTo(r.lowerBound, 0, r.lowerBound.length,
|
||||
value, valueOffSet, valueLength) <= 0) ||
|
||||
(!r.isLowerBoundEqualTo &&
|
||||
Bytes.compareTo(r.lowerBound, 0, r.lowerBound.length,
|
||||
value, valueOffSet, valueLength) < 0)
|
||||
|
||||
result = result || (upperBoundPass && lowerBoundPass)
|
||||
})
|
||||
result
|
||||
}
|
||||
|
||||
/**
|
||||
* This will allow us to merge filter logic that is joined to the existing filter
|
||||
* through a OR operator
|
||||
*
|
||||
* @param other Filter to merge
|
||||
*/
|
||||
def mergeUnion(other:ColumnFilter): Unit = {
|
||||
other.points.foreach( p => points += p)
|
||||
|
||||
other.ranges.foreach( otherR => {
|
||||
var doesOverLap = false
|
||||
ranges.foreach{ r =>
|
||||
if (r.doesOverLap(otherR)) {
|
||||
r.mergeUnion(otherR)
|
||||
doesOverLap = true
|
||||
}}
|
||||
if (!doesOverLap) ranges.+=(otherR)
|
||||
})
|
||||
}
|
||||
|
||||
/**
|
||||
* This will allow us to merge filter logic that is joined to the existing filter
|
||||
* through a AND operator
|
||||
*
|
||||
* @param other Filter to merge
|
||||
*/
|
||||
def mergeIntersect(other:ColumnFilter): Unit = {
|
||||
val survivingPoints = new mutable.MutableList[Array[Byte]]()
|
||||
points.foreach( p => {
|
||||
other.points.foreach( otherP => {
|
||||
if (Bytes.equals(p, otherP)) {
|
||||
survivingPoints.+=(p)
|
||||
}
|
||||
})
|
||||
})
|
||||
points = survivingPoints
|
||||
|
||||
val survivingRanges = new mutable.MutableList[ScanRange]()
|
||||
|
||||
other.ranges.foreach( otherR => {
|
||||
ranges.foreach( r => {
|
||||
if (r.doesOverLap(otherR)) {
|
||||
r.mergeIntersect(otherR)
|
||||
survivingRanges += r
|
||||
}
|
||||
})
|
||||
})
|
||||
ranges = survivingRanges
|
||||
}
|
||||
|
||||
override def toString:String = {
|
||||
val strBuilder = new StringBuilder
|
||||
strBuilder.append("(points:(")
|
||||
var isFirst = true
|
||||
points.foreach( p => {
|
||||
if (isFirst) isFirst = false
|
||||
else strBuilder.append(",")
|
||||
strBuilder.append(Bytes.toString(p))
|
||||
})
|
||||
strBuilder.append("),ranges:")
|
||||
isFirst = true
|
||||
ranges.foreach( r => {
|
||||
if (isFirst) isFirst = false
|
||||
else strBuilder.append(",")
|
||||
strBuilder.append(r)
|
||||
})
|
||||
strBuilder.append("))")
|
||||
strBuilder.toString()
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* A collection of ColumnFilters indexed by column names.
|
||||
*
|
||||
* Also contains merge commends that will consolidate the filters
|
||||
* per column name
|
||||
*/
|
||||
class ColumnFilterCollection {
|
||||
val columnFilterMap = new mutable.HashMap[String, ColumnFilter]
|
||||
|
||||
def clear(): Unit = {
|
||||
columnFilterMap.clear()
|
||||
}
|
||||
|
||||
/**
|
||||
* This will allow us to merge filter logic that is joined to the existing filter
|
||||
* through a OR operator. This will merge a single columns filter
|
||||
*
|
||||
* @param column The column to be merged
|
||||
* @param other The other ColumnFilter object to merge
|
||||
*/
|
||||
def mergeUnion(column:String, other:ColumnFilter): Unit = {
|
||||
val existingFilter = columnFilterMap.get(column)
|
||||
if (existingFilter.isEmpty) {
|
||||
columnFilterMap.+=((column, other))
|
||||
} else {
|
||||
existingFilter.get.mergeUnion(other)
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This will allow us to merge all filters in the existing collection
|
||||
* to the filters in the other collection. All merges are done as a result
|
||||
* of a OR operator
|
||||
*
|
||||
* @param other The other Column Filter Collection to be merged
|
||||
*/
|
||||
def mergeUnion(other:ColumnFilterCollection): Unit = {
|
||||
other.columnFilterMap.foreach( e => {
|
||||
mergeUnion(e._1, e._2)
|
||||
})
|
||||
}
|
||||
|
||||
/**
|
||||
* This will allow us to merge all filters in the existing collection
|
||||
* to the filters in the other collection. All merges are done as a result
|
||||
* of a AND operator
|
||||
*
|
||||
* @param other The column filter from the other collection
|
||||
*/
|
||||
def mergeIntersect(other:ColumnFilterCollection): Unit = {
|
||||
other.columnFilterMap.foreach( e => {
|
||||
val existingColumnFilter = columnFilterMap.get(e._1)
|
||||
if (existingColumnFilter.isEmpty) {
|
||||
columnFilterMap += e
|
||||
} else {
|
||||
existingColumnFilter.get.mergeIntersect(e._2)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
/**
|
||||
* This will collect all the filter information in a way that is optimized
|
||||
* for the HBase filter commend. Allowing the filter to be accessed
|
||||
* with columnFamily and qualifier information
|
||||
*
|
||||
* @param schemaDefinitionMap Schema Map that will help us map the right filters
|
||||
* to the correct columns
|
||||
* @return HashMap oc column filters
|
||||
*/
|
||||
def generateFamilyQualifiterFilterMap(schemaDefinitionMap:
|
||||
java.util.HashMap[String,
|
||||
SchemaQualifierDefinition]):
|
||||
util.HashMap[ColumnFamilyQualifierMapKeyWrapper, ColumnFilter] = {
|
||||
val familyQualifierFilterMap =
|
||||
new util.HashMap[ColumnFamilyQualifierMapKeyWrapper, ColumnFilter]()
|
||||
|
||||
columnFilterMap.foreach( e => {
|
||||
val definition = schemaDefinitionMap.get(e._1)
|
||||
//Don't add rowKeyFilter
|
||||
if (definition.columnFamilyBytes.size > 0) {
|
||||
familyQualifierFilterMap.put(
|
||||
new ColumnFamilyQualifierMapKeyWrapper(
|
||||
definition.columnFamilyBytes, 0, definition.columnFamilyBytes.length,
|
||||
definition.qualifierBytes, 0, definition.qualifierBytes.length), e._2)
|
||||
}
|
||||
})
|
||||
familyQualifierFilterMap
|
||||
}
|
||||
|
||||
override def toString:String = {
|
||||
val strBuilder = new StringBuilder
|
||||
columnFilterMap.foreach( e => strBuilder.append(e))
|
||||
strBuilder.toString()
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Status object to store static functions but also to hold last executed
|
||||
* information that can be used for unit testing.
|
||||
*/
|
||||
object DefaultSourceStaticUtils {
|
||||
|
||||
val rawInteger = new RawInteger
|
||||
val rawLong = new RawLong
|
||||
val rawFloat = new RawFloat
|
||||
val rawDouble = new RawDouble
|
||||
val rawString = RawString.ASCENDING
|
||||
|
||||
val byteRange = new ThreadLocal[PositionedByteRange]{
|
||||
override def initialValue(): PositionedByteRange = {
|
||||
val range = new SimplePositionedMutableByteRange()
|
||||
range.setOffset(0)
|
||||
range.setPosition(0)
|
||||
}
|
||||
}
|
||||
|
||||
def getFreshByteRange(bytes:Array[Byte]): PositionedByteRange = {
|
||||
getFreshByteRange(bytes, 0, bytes.length)
|
||||
}
|
||||
|
||||
def getFreshByteRange(bytes:Array[Byte], offset:Int = 0, length:Int): PositionedByteRange = {
|
||||
byteRange.get().set(bytes).setLength(length).setOffset(offset)
|
||||
}
|
||||
|
||||
//This will contain the last 5 filters and required fields used in buildScan
|
||||
// These values can be used in unit testing to make sure we are converting
|
||||
// The Spark SQL input correctly
|
||||
val lastFiveExecutionRules =
|
||||
new ConcurrentLinkedQueue[ExecutionRuleForUnitTesting]()
|
||||
|
||||
/**
|
||||
* This method is to populate the lastFiveExecutionRules for unit test perposes
|
||||
* This method is not thread safe.
|
||||
*
|
||||
* @param columnFilterCollection The filters in the last job
|
||||
* @param requiredQualifierDefinitionArray The required columns in the last job
|
||||
*/
|
||||
def populateLatestExecutionRules(columnFilterCollection: ColumnFilterCollection,
|
||||
requiredQualifierDefinitionArray:
|
||||
mutable.MutableList[SchemaQualifierDefinition]):Unit = {
|
||||
lastFiveExecutionRules.add(new ExecutionRuleForUnitTesting(
|
||||
columnFilterCollection, requiredQualifierDefinitionArray))
|
||||
while (lastFiveExecutionRules.size() > 5) {
|
||||
lastFiveExecutionRules.poll()
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This method will convert the result content from HBase into the
|
||||
* SQL value type that is requested by the Spark SQL schema definition
|
||||
*
|
||||
* @param columnName The name of the SparkSQL Column
|
||||
* @param schemaMappingDefinition The schema definition map
|
||||
* @param r The result object from HBase
|
||||
* @return The converted object type
|
||||
*/
|
||||
def getValue(columnName: String,
|
||||
schemaMappingDefinition:
|
||||
java.util.HashMap[String, SchemaQualifierDefinition],
|
||||
r: Result): Any = {
|
||||
|
||||
val columnDef = schemaMappingDefinition.get(columnName)
|
||||
|
||||
if (columnDef == null) throw new IllegalArgumentException("Unknown column:" + columnName)
|
||||
|
||||
|
||||
if (columnDef.columnFamilyBytes.isEmpty) {
|
||||
val row = r.getRow
|
||||
|
||||
columnDef.columnSparkSqlType match {
|
||||
case IntegerType => rawInteger.decode(getFreshByteRange(row))
|
||||
case LongType => rawLong.decode(getFreshByteRange(row))
|
||||
case FloatType => rawFloat.decode(getFreshByteRange(row))
|
||||
case DoubleType => rawDouble.decode(getFreshByteRange(row))
|
||||
case StringType => rawString.decode(getFreshByteRange(row))
|
||||
case TimestampType => rawLong.decode(getFreshByteRange(row))
|
||||
case _ => Bytes.toString(row)
|
||||
}
|
||||
} else {
|
||||
val cellByteValue =
|
||||
r.getColumnLatestCell(columnDef.columnFamilyBytes, columnDef.qualifierBytes)
|
||||
if (cellByteValue == null) null
|
||||
else columnDef.columnSparkSqlType match {
|
||||
case IntegerType => rawInteger.decode(getFreshByteRange(cellByteValue.getValueArray,
|
||||
cellByteValue.getValueOffset, cellByteValue.getValueLength))
|
||||
case LongType => rawLong.decode(getFreshByteRange(cellByteValue.getValueArray,
|
||||
cellByteValue.getValueOffset, cellByteValue.getValueLength))
|
||||
case FloatType => rawFloat.decode(getFreshByteRange(cellByteValue.getValueArray,
|
||||
cellByteValue.getValueOffset, cellByteValue.getValueLength))
|
||||
case DoubleType => rawDouble.decode(getFreshByteRange(cellByteValue.getValueArray,
|
||||
cellByteValue.getValueOffset, cellByteValue.getValueLength))
|
||||
case StringType => Bytes.toString(cellByteValue.getValueArray,
|
||||
cellByteValue.getValueOffset, cellByteValue.getValueLength)
|
||||
case TimestampType => rawLong.decode(getFreshByteRange(cellByteValue.getValueArray,
|
||||
cellByteValue.getValueOffset, cellByteValue.getValueLength))
|
||||
case _ => Bytes.toString(cellByteValue.getValueArray,
|
||||
cellByteValue.getValueOffset, cellByteValue.getValueLength)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This will convert the value from SparkSQL to be stored into HBase using the
|
||||
* right byte Type
|
||||
*
|
||||
* @param columnName SparkSQL column name
|
||||
* @param schemaMappingDefinition Schema definition map
|
||||
* @param value String value from SparkSQL
|
||||
* @return Returns the byte array to go into HBase
|
||||
*/
|
||||
def getByteValue(columnName: String,
|
||||
schemaMappingDefinition:
|
||||
java.util.HashMap[String, SchemaQualifierDefinition],
|
||||
value: String): Array[Byte] = {
|
||||
|
||||
val columnDef = schemaMappingDefinition.get(columnName)
|
||||
|
||||
if (columnDef == null) {
|
||||
throw new IllegalArgumentException("Unknown column:" + columnName)
|
||||
} else {
|
||||
columnDef.columnSparkSqlType match {
|
||||
case IntegerType =>
|
||||
val result = new Array[Byte](Bytes.SIZEOF_INT)
|
||||
val localDataRange = getFreshByteRange(result)
|
||||
rawInteger.encode(localDataRange, value.toInt)
|
||||
localDataRange.getBytes
|
||||
case LongType =>
|
||||
val result = new Array[Byte](Bytes.SIZEOF_LONG)
|
||||
val localDataRange = getFreshByteRange(result)
|
||||
rawLong.encode(localDataRange, value.toLong)
|
||||
localDataRange.getBytes
|
||||
case FloatType =>
|
||||
val result = new Array[Byte](Bytes.SIZEOF_FLOAT)
|
||||
val localDataRange = getFreshByteRange(result)
|
||||
rawFloat.encode(localDataRange, value.toFloat)
|
||||
localDataRange.getBytes
|
||||
case DoubleType =>
|
||||
val result = new Array[Byte](Bytes.SIZEOF_DOUBLE)
|
||||
val localDataRange = getFreshByteRange(result)
|
||||
rawDouble.encode(localDataRange, value.toDouble)
|
||||
localDataRange.getBytes
|
||||
case StringType =>
|
||||
Bytes.toBytes(value)
|
||||
case TimestampType =>
|
||||
val result = new Array[Byte](Bytes.SIZEOF_LONG)
|
||||
val localDataRange = getFreshByteRange(result)
|
||||
rawLong.encode(localDataRange, value.toLong)
|
||||
localDataRange.getBytes
|
||||
|
||||
case _ => Bytes.toBytes(value)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class ExecutionRuleForUnitTesting(val columnFilterCollection: ColumnFilterCollection,
|
||||
val requiredQualifierDefinitionArray:
|
||||
mutable.MutableList[SchemaQualifierDefinition])
|
||||
|
|
@ -68,6 +68,8 @@ class HBaseContext(@transient sc: SparkContext,
|
|||
val broadcastedConf = sc.broadcast(new SerializableWritable(config))
|
||||
val credentialsConf = sc.broadcast(new SerializableWritable(job.getCredentials))
|
||||
|
||||
LatestHBaseContextCache.latest = this
|
||||
|
||||
if (tmpHdfsConfgFile != null && config != null) {
|
||||
val fs = FileSystem.newInstance(config)
|
||||
val tmpPath = new Path(tmpHdfsConfgFile)
|
||||
|
|
@ -838,3 +840,7 @@ class HBaseContext(@transient sc: SparkContext,
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
object LatestHBaseContextCache {
|
||||
var latest:HBaseContext = null
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,462 @@
|
|||
/*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package org.apache.hadoop.hbase.spark
|
||||
|
||||
import org.apache.hadoop.hbase.client.{Put, ConnectionFactory}
|
||||
import org.apache.hadoop.hbase.util.Bytes
|
||||
import org.apache.hadoop.hbase.{TableNotFoundException, TableName, HBaseTestingUtility}
|
||||
import org.apache.spark.sql.{DataFrame, SQLContext}
|
||||
import org.apache.spark.{SparkContext, Logging}
|
||||
import org.scalatest.{BeforeAndAfterAll, BeforeAndAfterEach, FunSuite}
|
||||
|
||||
class DefaultSourceSuite extends FunSuite with
|
||||
BeforeAndAfterEach with BeforeAndAfterAll with Logging {
|
||||
@transient var sc: SparkContext = null
|
||||
var TEST_UTIL: HBaseTestingUtility = new HBaseTestingUtility
|
||||
|
||||
val tableName = "t1"
|
||||
val columnFamily = "c"
|
||||
|
||||
var sqlContext:SQLContext = null
|
||||
var df:DataFrame = null
|
||||
|
||||
override def beforeAll() {
|
||||
|
||||
TEST_UTIL.startMiniCluster
|
||||
|
||||
logInfo(" - minicluster started")
|
||||
try
|
||||
TEST_UTIL.deleteTable(TableName.valueOf(tableName))
|
||||
catch {
|
||||
case e: Exception => logInfo(" - no table " + tableName + " found")
|
||||
|
||||
}
|
||||
logInfo(" - creating table " + tableName)
|
||||
TEST_UTIL.createTable(TableName.valueOf(tableName), Bytes.toBytes(columnFamily))
|
||||
logInfo(" - created table")
|
||||
|
||||
sc = new SparkContext("local", "test")
|
||||
|
||||
val connection = ConnectionFactory.createConnection(TEST_UTIL.getConfiguration)
|
||||
val table = connection.getTable(TableName.valueOf("t1"))
|
||||
|
||||
try {
|
||||
var put = new Put(Bytes.toBytes("get1"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("a"), Bytes.toBytes("foo1"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("b"), Bytes.toBytes("1"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("i"), Bytes.toBytes(1))
|
||||
table.put(put)
|
||||
put = new Put(Bytes.toBytes("get2"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("a"), Bytes.toBytes("foo2"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("b"), Bytes.toBytes("4"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("i"), Bytes.toBytes(4))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("z"), Bytes.toBytes("FOO"))
|
||||
table.put(put)
|
||||
put = new Put(Bytes.toBytes("get3"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("a"), Bytes.toBytes("foo3"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("b"), Bytes.toBytes("8"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("i"), Bytes.toBytes(8))
|
||||
table.put(put)
|
||||
put = new Put(Bytes.toBytes("get4"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("a"), Bytes.toBytes("foo4"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("b"), Bytes.toBytes("10"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("i"), Bytes.toBytes(10))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("z"), Bytes.toBytes("BAR"))
|
||||
table.put(put)
|
||||
put = new Put(Bytes.toBytes("get5"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("a"), Bytes.toBytes("foo5"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("b"), Bytes.toBytes("8"))
|
||||
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes("i"), Bytes.toBytes(8))
|
||||
table.put(put)
|
||||
} finally {
|
||||
table.close()
|
||||
connection.close()
|
||||
}
|
||||
|
||||
new HBaseContext(sc, TEST_UTIL.getConfiguration)
|
||||
sqlContext = new SQLContext(sc)
|
||||
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD STRING :key, A_FIELD STRING c:a, B_FIELD STRING c:b,",
|
||||
"hbase.table" -> "t1",
|
||||
"hbase.batching.num" -> "100",
|
||||
"cachingNum" -> "100"))
|
||||
|
||||
df.registerTempTable("hbaseTmp")
|
||||
}
|
||||
|
||||
override def afterAll() {
|
||||
TEST_UTIL.deleteTable(TableName.valueOf(tableName))
|
||||
logInfo("shuting down minicluster")
|
||||
TEST_UTIL.shutdownMiniCluster()
|
||||
|
||||
sc.stop()
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* A example of query three fields and also only using rowkey points for the filter
|
||||
*/
|
||||
test("Test rowKey point only rowKey query") {
|
||||
val results = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseTmp " +
|
||||
"WHERE " +
|
||||
"(KEY_FIELD = 'get1' or KEY_FIELD = 'get2' or KEY_FIELD = 'get3')").take(10)
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
|
||||
assert(results.length == 3)
|
||||
|
||||
assert(executionRules.columnFilterCollection.columnFilterMap.size == 1)
|
||||
val keyFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("KEY_FIELD").get
|
||||
assert(keyFieldFilter.ranges.length == 0)
|
||||
assert(keyFieldFilter.points.length == 3)
|
||||
assert(Bytes.toString(keyFieldFilter.points.head).equals("get1"))
|
||||
assert(Bytes.toString(keyFieldFilter.points(1)).equals("get2"))
|
||||
assert(Bytes.toString(keyFieldFilter.points(2)).equals("get3"))
|
||||
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 2)
|
||||
}
|
||||
|
||||
/**
|
||||
* A example of query three fields and also only using cell points for the filter
|
||||
*/
|
||||
test("Test cell point only rowKey query") {
|
||||
val results = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseTmp " +
|
||||
"WHERE " +
|
||||
"(B_FIELD = '4' or B_FIELD = '10' or A_FIELD = 'foo1')").take(10)
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
|
||||
assert(results.length == 3)
|
||||
|
||||
assert(executionRules.columnFilterCollection.columnFilterMap.size == 2)
|
||||
val bFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("B_FIELD").get
|
||||
assert(bFieldFilter.ranges.length == 0)
|
||||
assert(bFieldFilter.points.length == 2)
|
||||
val aFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("A_FIELD").get
|
||||
assert(aFieldFilter.ranges.length == 0)
|
||||
assert(aFieldFilter.points.length == 1)
|
||||
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 2)
|
||||
}
|
||||
|
||||
/**
|
||||
* A example of a OR merge between to ranges the result is one range
|
||||
* Also an example of less then and greater then
|
||||
*/
|
||||
test("Test two range rowKey query") {
|
||||
val results = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseTmp " +
|
||||
"WHERE " +
|
||||
"( KEY_FIELD < 'get2' or KEY_FIELD > 'get3')").take(10)
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
|
||||
assert(results.length == 3)
|
||||
|
||||
assert(executionRules.columnFilterCollection.columnFilterMap.size == 1)
|
||||
val keyFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("KEY_FIELD").get
|
||||
assert(keyFieldFilter.ranges.length == 2)
|
||||
assert(keyFieldFilter.points.length == 0)
|
||||
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 2)
|
||||
}
|
||||
|
||||
/**
|
||||
* A example of a AND merge between to ranges the result is one range
|
||||
* Also an example of less then and equal to and greater then and equal to
|
||||
*/
|
||||
test("Test one combined range rowKey query") {
|
||||
val results = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseTmp " +
|
||||
"WHERE " +
|
||||
"(KEY_FIELD <= 'get3' and KEY_FIELD >= 'get2')").take(10)
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
|
||||
assert(results.length == 2)
|
||||
|
||||
assert(executionRules.columnFilterCollection.columnFilterMap.size == 1)
|
||||
val keyFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("KEY_FIELD").get
|
||||
assert(keyFieldFilter.ranges.length == 1)
|
||||
assert(keyFieldFilter.points.length == 0)
|
||||
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 2)
|
||||
}
|
||||
|
||||
/**
|
||||
* Do a select with no filters
|
||||
*/
|
||||
test("Test select only query") {
|
||||
|
||||
val results = df.select("KEY_FIELD").take(10)
|
||||
assert(results.length == 5)
|
||||
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
assert(executionRules.columnFilterCollection == null)
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 0)
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* A complex query with one point and one range for both the
|
||||
* rowKey and the a column
|
||||
*/
|
||||
test("Test SQL point and range combo") {
|
||||
val results = sqlContext.sql("SELECT KEY_FIELD FROM hbaseTmp " +
|
||||
"WHERE " +
|
||||
"(KEY_FIELD = 'get1' and B_FIELD < '3') or " +
|
||||
"(KEY_FIELD >= 'get3' and B_FIELD = '8')").take(5)
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
|
||||
assert(results.length == 3)
|
||||
|
||||
assert(executionRules.columnFilterCollection.columnFilterMap.size == 2)
|
||||
val keyFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("KEY_FIELD").get
|
||||
assert(keyFieldFilter.ranges.length == 1)
|
||||
assert(keyFieldFilter.ranges.head.upperBound == null)
|
||||
assert(Bytes.toString(keyFieldFilter.ranges.head.lowerBound).equals("get3"))
|
||||
assert(keyFieldFilter.ranges.head.isLowerBoundEqualTo)
|
||||
assert(keyFieldFilter.points.length == 1)
|
||||
assert(Bytes.toString(keyFieldFilter.points.head).equals("get1"))
|
||||
|
||||
val bFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("B_FIELD").get
|
||||
assert(bFieldFilter.ranges.length == 1)
|
||||
assert(bFieldFilter.ranges.head.lowerBound.length == 0)
|
||||
assert(Bytes.toString(bFieldFilter.ranges.head.upperBound).equals("3"))
|
||||
assert(!bFieldFilter.ranges.head.isUpperBoundEqualTo)
|
||||
assert(bFieldFilter.points.length == 1)
|
||||
assert(Bytes.toString(bFieldFilter.points.head).equals("8"))
|
||||
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 1)
|
||||
assert(executionRules.requiredQualifierDefinitionArray.head.columnName.equals("B_FIELD"))
|
||||
assert(executionRules.requiredQualifierDefinitionArray.head.columnFamily.equals("c"))
|
||||
assert(executionRules.requiredQualifierDefinitionArray.head.qualifier.equals("b"))
|
||||
}
|
||||
|
||||
/**
|
||||
* A complex query with two complex ranges that doesn't merge into one
|
||||
*/
|
||||
test("Test two complete range non merge rowKey query") {
|
||||
|
||||
val results = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseTmp " +
|
||||
"WHERE " +
|
||||
"( KEY_FIELD >= 'get1' and KEY_FIELD <= 'get2') or" +
|
||||
"( KEY_FIELD > 'get3' and KEY_FIELD <= 'get5')").take(10)
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
assert(results.length == 4)
|
||||
|
||||
assert(executionRules.columnFilterCollection.columnFilterMap.size == 1)
|
||||
val keyFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("KEY_FIELD").get
|
||||
assert(keyFieldFilter.ranges.length == 2)
|
||||
assert(keyFieldFilter.points.length == 0)
|
||||
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 2)
|
||||
}
|
||||
|
||||
/**
|
||||
* A complex query with two complex ranges that does merge into one
|
||||
*/
|
||||
test("Test two complete range merge rowKey query") {
|
||||
val results = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseTmp " +
|
||||
"WHERE " +
|
||||
"( KEY_FIELD >= 'get1' and KEY_FIELD <= 'get3') or" +
|
||||
"( KEY_FIELD > 'get3' and KEY_FIELD <= 'get5')").take(10)
|
||||
|
||||
val executionRules = DefaultSourceStaticUtils.lastFiveExecutionRules.poll()
|
||||
|
||||
assert(results.length == 5)
|
||||
|
||||
assert(executionRules.columnFilterCollection.columnFilterMap.size == 1)
|
||||
val keyFieldFilter =
|
||||
executionRules.columnFilterCollection.columnFilterMap.get("KEY_FIELD").get
|
||||
assert(keyFieldFilter.ranges.length == 1)
|
||||
assert(keyFieldFilter.points.length == 0)
|
||||
|
||||
assert(executionRules.requiredQualifierDefinitionArray.length == 2)
|
||||
}
|
||||
|
||||
test("test table that doesn't exist") {
|
||||
intercept[TableNotFoundException] {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD STRING :key, A_FIELD STRING c:a, B_FIELD STRING c:b,",
|
||||
"hbase.table" -> "t1NotThere"))
|
||||
|
||||
df.registerTempTable("hbaseNonExistingTmp")
|
||||
|
||||
sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseNonExistingTmp " +
|
||||
"WHERE " +
|
||||
"( KEY_FIELD >= 'get1' and KEY_FIELD <= 'get3') or" +
|
||||
"( KEY_FIELD > 'get3' and KEY_FIELD <= 'get5')").count()
|
||||
}
|
||||
}
|
||||
|
||||
test("Test table with column that doesn't exist") {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD STRING :key, A_FIELD STRING c:a, B_FIELD STRING c:b, C_FIELD STRING c:c,",
|
||||
"hbase.table" -> "t1"))
|
||||
|
||||
df.registerTempTable("hbaseFactColumnTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, A_FIELD FROM hbaseFactColumnTmp")
|
||||
|
||||
assert(result.count() == 5)
|
||||
|
||||
val localResult = result.take(5)
|
||||
}
|
||||
|
||||
test("Test table with INT column") {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD STRING :key, A_FIELD STRING c:a, B_FIELD STRING c:b, I_FIELD INT c:i,",
|
||||
"hbase.table" -> "t1"))
|
||||
|
||||
df.registerTempTable("hbaseIntTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, I_FIELD FROM hbaseIntTmp"+
|
||||
" where I_FIELD > 4 and I_FIELD < 10")
|
||||
|
||||
assert(result.count() == 2)
|
||||
|
||||
val localResult = result.take(3)
|
||||
|
||||
assert(localResult(0).getInt(2) == 8)
|
||||
}
|
||||
|
||||
test("Test table with INT column defined at wrong type") {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD STRING :key, A_FIELD STRING c:a, B_FIELD STRING c:b, I_FIELD STRING c:i,",
|
||||
"hbase.table" -> "t1"))
|
||||
|
||||
df.registerTempTable("hbaseIntWrongTypeTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, I_FIELD FROM hbaseIntWrongTypeTmp")
|
||||
|
||||
assert(result.count() == 5)
|
||||
|
||||
val localResult = result.take(5)
|
||||
|
||||
assert(localResult(0).getString(2).length == 4)
|
||||
assert(localResult(0).getString(2).charAt(0).toByte == 0)
|
||||
assert(localResult(0).getString(2).charAt(1).toByte == 0)
|
||||
assert(localResult(0).getString(2).charAt(2).toByte == 0)
|
||||
assert(localResult(0).getString(2).charAt(3).toByte == 1)
|
||||
}
|
||||
|
||||
test("Test improperly formatted column mapping") {
|
||||
intercept[IllegalArgumentException] {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD,STRING,:key, A_FIELD,STRING,c:a, B_FIELD,STRING,c:b, I_FIELD,STRING,c:i,",
|
||||
"hbase.table" -> "t1"))
|
||||
|
||||
df.registerTempTable("hbaseBadTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, I_FIELD FROM hbaseBadTmp")
|
||||
|
||||
val localResult = result.take(5)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
test("Test bad column type") {
|
||||
intercept[IllegalArgumentException] {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD FOOBAR :key, A_FIELD STRING c:a, B_FIELD STRING c:b, I_FIELD STRING c:i,",
|
||||
"hbase.table" -> "t1"))
|
||||
|
||||
df.registerTempTable("hbaseIntWrongTypeTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, I_FIELD FROM hbaseIntWrongTypeTmp")
|
||||
|
||||
assert(result.count() == 5)
|
||||
|
||||
val localResult = result.take(5)
|
||||
}
|
||||
}
|
||||
|
||||
test("Test bad hbase.batching.num type") {
|
||||
intercept[IllegalArgumentException] {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD FOOBAR :key, A_FIELD STRING c:a, B_FIELD STRING c:b, I_FIELD STRING c:i,",
|
||||
"hbase.table" -> "t1", "hbase.batching.num" -> "foo"))
|
||||
|
||||
df.registerTempTable("hbaseIntWrongTypeTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, I_FIELD FROM hbaseIntWrongTypeTmp")
|
||||
|
||||
assert(result.count() == 5)
|
||||
|
||||
val localResult = result.take(5)
|
||||
}
|
||||
}
|
||||
|
||||
test("Test bad hbase.caching.num type") {
|
||||
intercept[IllegalArgumentException] {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD FOOBAR :key, A_FIELD STRING c:a, B_FIELD STRING c:b, I_FIELD STRING c:i,",
|
||||
"hbase.table" -> "t1", "hbase.caching.num" -> "foo"))
|
||||
|
||||
df.registerTempTable("hbaseIntWrongTypeTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, I_FIELD FROM hbaseIntWrongTypeTmp")
|
||||
|
||||
assert(result.count() == 5)
|
||||
|
||||
val localResult = result.take(5)
|
||||
}
|
||||
}
|
||||
|
||||
test("Test table with sparse column") {
|
||||
df = sqlContext.load("org.apache.hadoop.hbase.spark",
|
||||
Map("hbase.columns.mapping" ->
|
||||
"KEY_FIELD STRING :key, A_FIELD STRING c:a, B_FIELD STRING c:b, Z_FIELD STRING c:z,",
|
||||
"hbase.table" -> "t1"))
|
||||
|
||||
df.registerTempTable("hbaseZTmp")
|
||||
|
||||
val result = sqlContext.sql("SELECT KEY_FIELD, B_FIELD, Z_FIELD FROM hbaseZTmp")
|
||||
|
||||
assert(result.count() == 5)
|
||||
|
||||
val localResult = result.take(5)
|
||||
|
||||
assert(localResult(0).getString(2) == null)
|
||||
assert(localResult(1).getString(2) == "FOO")
|
||||
assert(localResult(2).getString(2) == null)
|
||||
assert(localResult(3).getString(2) == "BAR")
|
||||
assert(localResult(4).getString(2) == null)
|
||||
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue