HBASE-8930 Add missing file
git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1520169 13f79535-47bb-0310-9956-ffa450edef68
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/**
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with 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.filter;
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import java.util.ArrayList;
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import java.util.List;
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import org.apache.hadoop.hbase.Cell;
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import org.apache.hadoop.hbase.HBaseTestingUtility;
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import org.apache.hadoop.hbase.HColumnDescriptor;
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import org.apache.hadoop.hbase.HRegionInfo;
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import org.apache.hadoop.hbase.HTableDescriptor;
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import org.apache.hadoop.hbase.KeyValue;
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import org.apache.hadoop.hbase.SmallTests;
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import org.apache.hadoop.hbase.TableName;
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import org.apache.hadoop.hbase.client.Get;
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import org.apache.hadoop.hbase.client.Put;
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import org.apache.hadoop.hbase.client.Scan;
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import org.apache.hadoop.hbase.regionserver.HRegion;
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import org.apache.hadoop.hbase.regionserver.InternalScanner;
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import org.apache.hadoop.hbase.regionserver.wal.HLog;
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import org.apache.hadoop.hbase.util.Bytes;
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import org.junit.After;
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import org.junit.Assert;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.experimental.categories.Category;
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/**
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* Test the invocation logic of the filters. A filter must be invoked only for
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* the columns that are requested for.
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*/
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@Category(SmallTests.class)
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public class TestInvocationRecordFilter {
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private static final byte[] TABLE_NAME_BYTES = Bytes
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.toBytes("invocationrecord");
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private static final byte[] FAMILY_NAME_BYTES = Bytes.toBytes("cf");
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private static final byte[] ROW_BYTES = Bytes.toBytes("row");
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private static final String QUALIFIER_PREFIX = "qualifier";
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private static final String VALUE_PREFIX = "value";
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private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
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private HRegion region;
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@Before
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public void setUp() throws Exception {
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HTableDescriptor htd = new HTableDescriptor(
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TableName.valueOf(TABLE_NAME_BYTES));
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htd.addFamily(new HColumnDescriptor(FAMILY_NAME_BYTES));
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HRegionInfo info = new HRegionInfo(htd.getTableName(), null, null, false);
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this.region = HRegion.createHRegion(info, TEST_UTIL.getDataTestDir(),
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TEST_UTIL.getConfiguration(), htd);
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Put put = new Put(ROW_BYTES);
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for (int i = 0; i < 10; i += 2) {
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// puts 0, 2, 4, 6 and 8
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put.add(FAMILY_NAME_BYTES, Bytes.toBytes(QUALIFIER_PREFIX + i), i,
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Bytes.toBytes(VALUE_PREFIX + i));
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}
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this.region.put(put);
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this.region.flushcache();
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}
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@Test
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public void testFilterInvocation() throws Exception {
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List<Integer> selectQualifiers = new ArrayList<Integer>();
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List<Integer> expectedQualifiers = new ArrayList<Integer>();
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selectQualifiers.add(-1);
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verifyInvocationResults(selectQualifiers.toArray(new Integer[0]),
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expectedQualifiers.toArray(new Integer[0]));
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selectQualifiers.clear();
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selectQualifiers.add(0);
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expectedQualifiers.add(0);
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verifyInvocationResults(selectQualifiers.toArray(new Integer[0]),
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expectedQualifiers.toArray(new Integer[0]));
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selectQualifiers.add(3);
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verifyInvocationResults(selectQualifiers.toArray(new Integer[0]),
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expectedQualifiers.toArray(new Integer[0]));
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selectQualifiers.add(4);
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expectedQualifiers.add(4);
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verifyInvocationResults(selectQualifiers.toArray(new Integer[0]),
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expectedQualifiers.toArray(new Integer[0]));
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selectQualifiers.add(5);
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verifyInvocationResults(selectQualifiers.toArray(new Integer[0]),
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expectedQualifiers.toArray(new Integer[0]));
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selectQualifiers.add(8);
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expectedQualifiers.add(8);
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verifyInvocationResults(selectQualifiers.toArray(new Integer[0]),
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expectedQualifiers.toArray(new Integer[0]));
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}
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public void verifyInvocationResults(Integer[] selectQualifiers,
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Integer[] expectedQualifiers) throws Exception {
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Get get = new Get(ROW_BYTES);
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for (int i = 0; i < selectQualifiers.length; i++) {
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get.addColumn(FAMILY_NAME_BYTES,
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Bytes.toBytes(QUALIFIER_PREFIX + selectQualifiers[i]));
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}
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get.setFilter(new InvocationRecordFilter());
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List<KeyValue> expectedValues = new ArrayList<KeyValue>();
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for (int i = 0; i < expectedQualifiers.length; i++) {
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expectedValues.add(new KeyValue(ROW_BYTES, FAMILY_NAME_BYTES, Bytes
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.toBytes(QUALIFIER_PREFIX + expectedQualifiers[i]),
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expectedQualifiers[i], Bytes.toBytes(VALUE_PREFIX
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+ expectedQualifiers[i])));
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}
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Scan scan = new Scan(get);
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List<Cell> actualValues = new ArrayList<Cell>();
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List<Cell> temp = new ArrayList<Cell>();
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InternalScanner scanner = this.region.getScanner(scan);
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while (scanner.next(temp)) {
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actualValues.addAll(temp);
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temp.clear();
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}
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actualValues.addAll(temp);
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Assert.assertTrue("Actual values " + actualValues
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+ " differ from the expected values:" + expectedValues,
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expectedValues.equals(actualValues));
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}
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@After
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public void tearDown() throws Exception {
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HLog hlog = region.getLog();
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region.close();
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hlog.closeAndDelete();
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}
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/**
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* Filter which gives the list of keyvalues for which the filter is invoked.
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*/
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private static class InvocationRecordFilter extends FilterBase {
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private List<Cell> visitedKeyValues = new ArrayList<Cell>();
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public void reset() {
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visitedKeyValues.clear();
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}
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public ReturnCode filterKeyValue(Cell ignored) {
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visitedKeyValues.add(ignored);
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return ReturnCode.INCLUDE;
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}
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public void filterRowCells(List<Cell> kvs) {
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kvs.clear();
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kvs.addAll(visitedKeyValues);
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}
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public boolean hasFilterRow() {
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return true;
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}
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}
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}
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