mirror of https://github.com/apache/nifi.git
NIFI-912 Initial version of ExtractAvroMetadata processor.
- Adding optional ability to extract record count - Renaming record.count to item.count for clarity, and updating documentation - Adding a test case with 0 records - Removing validators from properties that use allowable values
This commit is contained in:
Bryan Bende
parent
3d4ce34529
commit
1007999415
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@ -39,6 +39,10 @@
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<groupId>com.fasterxml.jackson.core</groupId>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<artifactId>jackson-databind</artifactId>
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</dependency>
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</dependency>
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<dependency>
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<groupId>commons-codec</groupId>
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<artifactId>commons-codec</artifactId>
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</dependency>
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<dependency>
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<dependency>
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<groupId>org.apache.nifi</groupId>
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<groupId>org.apache.nifi</groupId>
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<artifactId>nifi-mock</artifactId>
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<artifactId>nifi-mock</artifactId>
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@ -64,6 +68,7 @@
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<configuration>
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<configuration>
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<excludes combine.children="append">
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<excludes combine.children="append">
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<exclude>src/test/resources/user.avsc</exclude>
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<exclude>src/test/resources/user.avsc</exclude>
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<exclude>src/test/resources/array.avsc</exclude>
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</excludes>
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</excludes>
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</configuration>
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</configuration>
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</plugin>
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</plugin>
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@ -0,0 +1,219 @@
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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.nifi.processors.avro;
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import org.apache.avro.Schema;
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import org.apache.avro.SchemaNormalization;
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import org.apache.avro.file.DataFileStream;
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import org.apache.avro.generic.GenericDatumReader;
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import org.apache.avro.generic.GenericRecord;
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import org.apache.commons.codec.binary.Hex;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.nifi.annotation.behavior.SideEffectFree;
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import org.apache.nifi.annotation.behavior.SupportsBatching;
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import org.apache.nifi.annotation.behavior.WritesAttribute;
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import org.apache.nifi.annotation.behavior.WritesAttributes;
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import org.apache.nifi.annotation.documentation.CapabilityDescription;
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import org.apache.nifi.annotation.documentation.Tags;
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import org.apache.nifi.components.AllowableValue;
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import org.apache.nifi.components.PropertyDescriptor;
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import org.apache.nifi.flowfile.FlowFile;
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import org.apache.nifi.processor.AbstractProcessor;
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import org.apache.nifi.processor.ProcessContext;
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import org.apache.nifi.processor.ProcessSession;
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import org.apache.nifi.processor.ProcessorInitializationContext;
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import org.apache.nifi.processor.Relationship;
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import org.apache.nifi.processor.exception.ProcessException;
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import org.apache.nifi.processor.io.InputStreamCallback;
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import org.apache.nifi.processor.util.StandardValidators;
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import java.io.BufferedInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.security.NoSuchAlgorithmException;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.NoSuchElementException;
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import java.util.Set;
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@SideEffectFree
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@SupportsBatching
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@Tags({ "avro", "schema", "metadata" })
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@CapabilityDescription("Extracts metadata from the header of an Avro datafile.")
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@WritesAttributes({
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@WritesAttribute(attribute = "schema.type", description = "The type of the schema (i.e. record, enum, etc.)."),
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@WritesAttribute(attribute = "schema.name", description = "Contains the name when the type is a record, enum or fixed, " +
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"otherwise contains the name of the primitive type."),
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@WritesAttribute(attribute = "schema.fingerprint", description = "The result of the Fingerprint Algorithm as a Hex string."),
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@WritesAttribute(attribute = "item.count", description = "The total number of items in the datafile, only written if Count Items " +
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"is set to true.")
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})
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public class ExtractAvroMetadata extends AbstractProcessor {
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static final AllowableValue CRC_64_AVRO = new AllowableValue("CRC-64-AVRO");
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static final AllowableValue MD5 = new AllowableValue("MD5");
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static final AllowableValue SHA_256 = new AllowableValue("SHA-256");
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static final PropertyDescriptor FINGERPRINT_ALGORITHM = new PropertyDescriptor.Builder()
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.name("Fingerprint Algorithm")
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.description("The algorithm used to generate the schema fingerprint. Available choices are based on the Avro recommended practices for " +
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"fingerprint generation.")
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.allowableValues(CRC_64_AVRO, MD5, SHA_256)
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.defaultValue(CRC_64_AVRO.getValue())
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.required(true)
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.build();
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static final PropertyDescriptor METADATA_KEYS = new PropertyDescriptor.Builder()
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.name("Metadata Keys")
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.description("A comma-separated list of keys indicating key/value pairs to extract from the Avro file header. The key 'avro.schema' can " +
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"be used to extract the full schema in JSON format, and 'avro.codec' can be used to extract the codec name if one exists.")
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.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
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.required(false)
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.build();
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static final PropertyDescriptor COUNT_ITEMS = new PropertyDescriptor.Builder()
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.name("Count Items")
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.description("If true the number of items in the datafile will be counted and stored in a FlowFile attribute 'item.count'. The counting is done " +
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"by reading blocks and getting the number of items for each block, thus avoiding de-serializing. The items being counted will be the top-level " +
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"items in the datafile. For example, with a schema of type record the items will be the records, and for a schema of type Array the items will " +
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"be the arrays (not the number of entries in each array).")
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.allowableValues("true", "false")
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.defaultValue("false")
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.required(true)
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.build();
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static final Relationship REL_SUCCESS = new Relationship.Builder()
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.name("success")
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.description("A FlowFile is routed to this relationship after metadata has been extracted.")
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.build();
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static final Relationship REL_FAILURE = new Relationship.Builder()
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.name("failure")
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.description("A FlowFile is routed to this relationship if it cannot be parsed as Avro or metadata cannot be extracted for any reason")
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.build();
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static final String SCHEMA_TYPE_ATTR = "schema.type";
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static final String SCHEMA_NAME_ATTR = "schema.name";
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static final String SCHEMA_FINGERPRINT_ATTR = "schema.fingerprint";
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static final String ITEM_COUNT_ATTR = "item.count";
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private List<PropertyDescriptor> properties;
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private Set<Relationship> relationships;
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@Override
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protected void init(ProcessorInitializationContext context) {
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super.init(context);
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final List<PropertyDescriptor> properties = new ArrayList<>();
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properties.add(FINGERPRINT_ALGORITHM);
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properties.add(METADATA_KEYS);
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properties.add(COUNT_ITEMS);
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this.properties = Collections.unmodifiableList(properties);
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final Set<Relationship> relationships = new HashSet<>();
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relationships.add(REL_SUCCESS);
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relationships.add(REL_FAILURE);
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this.relationships = Collections.unmodifiableSet(relationships);
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}
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@Override
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protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
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return properties;
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}
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@Override
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public Set<Relationship> getRelationships() {
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return relationships;
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}
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@Override
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public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
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FlowFile flowFile = session.get();
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if (flowFile == null) {
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return;
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}
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final Map<String,String> avroMetadata = new HashMap<>();
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final Set<String> requestedMetadataKeys = new HashSet<>();
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final boolean countRecords = context.getProperty(COUNT_ITEMS).asBoolean();
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final String fingerprintAlgorithm = context.getProperty(FINGERPRINT_ALGORITHM).getValue();
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final String metadataKeysValue = context.getProperty(METADATA_KEYS).getValue();
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if (!StringUtils.isEmpty(metadataKeysValue)) {
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final String[] keys = metadataKeysValue.split("\\s*,\\s*");
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for (final String key : keys) {
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requestedMetadataKeys.add(key.trim());
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}
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}
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try {
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session.read(flowFile, new InputStreamCallback() {
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@Override
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public void process(InputStream rawIn) throws IOException {
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try (final InputStream in = new BufferedInputStream(rawIn);
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final DataFileStream<GenericRecord> reader = new DataFileStream<>(in, new GenericDatumReader<GenericRecord>())) {
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final Schema schema = reader.getSchema();
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if (schema == null) {
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throw new ProcessException("Avro schema was null");
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}
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for (String key : reader.getMetaKeys()) {
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if (requestedMetadataKeys.contains(key)) {
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avroMetadata.put(key, reader.getMetaString(key));
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}
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}
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try {
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final byte[] rawFingerprint = SchemaNormalization.parsingFingerprint(fingerprintAlgorithm, schema);
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avroMetadata.put(SCHEMA_FINGERPRINT_ATTR, Hex.encodeHexString(rawFingerprint));
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avroMetadata.put(SCHEMA_TYPE_ATTR, schema.getType().getName());
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avroMetadata.put(SCHEMA_NAME_ATTR, schema.getName());
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} catch (NoSuchAlgorithmException e) {
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// shouldn't happen since allowable values are valid algorithms
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throw new ProcessException(e);
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}
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if (countRecords) {
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long recordCount = reader.getBlockCount();
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try {
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while (reader.nextBlock() != null) {
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recordCount += reader.getBlockCount();
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}
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} catch (NoSuchElementException e) {
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// happens at end of file
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}
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avroMetadata.put(ITEM_COUNT_ATTR, String.valueOf(recordCount));
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}
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}
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}
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});
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} catch (final ProcessException pe) {
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getLogger().error("Failed to extract Avro metadata for {} due to {}; transferring to failure", new Object[] {flowFile, pe});
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session.transfer(flowFile, REL_FAILURE);
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return;
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}
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flowFile = session.putAllAttributes(flowFile, avroMetadata);
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session.transfer(flowFile, REL_SUCCESS);
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}
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}
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@ -13,3 +13,4 @@
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# See the License for the specific language governing permissions and
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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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# limitations under the License.
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org.apache.nifi.processors.avro.ConvertAvroToJSON
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org.apache.nifi.processors.avro.ConvertAvroToJSON
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org.apache.nifi.processors.avro.ExtractAvroMetadata
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@ -0,0 +1,40 @@
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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.nifi.processors.avro;
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import org.apache.avro.Schema;
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import org.apache.avro.file.DataFileWriter;
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import org.apache.avro.generic.GenericRecord;
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import org.apache.avro.io.DatumWriter;
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import org.apache.nifi.stream.io.ByteArrayOutputStream;
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import java.io.IOException;
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public class AvroTestUtil {
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public static ByteArrayOutputStream serializeAvroRecord(final Schema schema, final DatumWriter<GenericRecord> datumWriter, final GenericRecord... users) throws IOException {
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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try (DataFileWriter<GenericRecord> dataFileWriter = new DataFileWriter<>(datumWriter)) {
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dataFileWriter.create(schema, out);
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for (final GenericRecord user : users) {
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dataFileWriter.append(user);
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}
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}
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return out;
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}
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}
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@ -16,22 +16,20 @@
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*/
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*/
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package org.apache.nifi.processors.avro;
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package org.apache.nifi.processors.avro;
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import java.io.File;
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import java.io.IOException;
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import org.apache.avro.Schema;
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import org.apache.avro.Schema;
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import org.apache.avro.file.DataFileWriter;
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import org.apache.avro.generic.GenericData;
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import org.apache.avro.generic.GenericData;
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import org.apache.avro.generic.GenericDatumWriter;
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import org.apache.avro.generic.GenericDatumWriter;
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import org.apache.avro.generic.GenericRecord;
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import org.apache.avro.generic.GenericRecord;
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import org.apache.avro.io.DatumWriter;
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import org.apache.avro.io.DatumWriter;
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import org.apache.nifi.processors.avro.ConvertAvroToJSON;
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import org.apache.nifi.stream.io.ByteArrayOutputStream;
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import org.apache.nifi.stream.io.ByteArrayOutputStream;
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import org.apache.nifi.util.MockFlowFile;
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import org.apache.nifi.util.MockFlowFile;
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import org.apache.nifi.util.TestRunner;
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import org.apache.nifi.util.TestRunner;
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import org.apache.nifi.util.TestRunners;
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import org.apache.nifi.util.TestRunners;
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import org.junit.Test;
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import org.junit.Test;
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import java.io.File;
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import java.io.IOException;
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public class TestConvertAvroToJSON {
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public class TestConvertAvroToJSON {
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@Test
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@Test
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@ -44,7 +42,7 @@ public class TestConvertAvroToJSON {
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user1.put("favorite_number", 256);
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user1.put("favorite_number", 256);
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final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
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final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
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final ByteArrayOutputStream out1 = serializeAvroRecord(schema, datumWriter, user1);
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final ByteArrayOutputStream out1 = AvroTestUtil.serializeAvroRecord(schema, datumWriter, user1);
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runner.enqueue(out1.toByteArray());
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runner.enqueue(out1.toByteArray());
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runner.run();
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runner.run();
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@ -69,7 +67,7 @@ public class TestConvertAvroToJSON {
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user2.put("favorite_color", "red");
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user2.put("favorite_color", "red");
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final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
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final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
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final ByteArrayOutputStream out1 = serializeAvroRecord(schema, datumWriter, user1, user2);
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final ByteArrayOutputStream out1 = AvroTestUtil.serializeAvroRecord(schema, datumWriter, user1, user2);
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runner.enqueue(out1.toByteArray());
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runner.enqueue(out1.toByteArray());
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runner.run();
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runner.run();
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@ -87,16 +85,4 @@ public class TestConvertAvroToJSON {
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runner.assertAllFlowFilesTransferred(ConvertAvroToJSON.REL_FAILURE, 1);
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runner.assertAllFlowFilesTransferred(ConvertAvroToJSON.REL_FAILURE, 1);
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}
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}
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|
||||||
private ByteArrayOutputStream serializeAvroRecord(final Schema schema, final DatumWriter<GenericRecord> datumWriter, final GenericRecord... users) throws IOException {
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|
||||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
|
||||||
DataFileWriter<GenericRecord> dataFileWriter = new DataFileWriter<GenericRecord>(datumWriter);
|
|
||||||
dataFileWriter.create(schema, out);
|
|
||||||
for (final GenericRecord user : users) {
|
|
||||||
dataFileWriter.append(user);
|
|
||||||
}
|
|
||||||
|
|
||||||
dataFileWriter.close();
|
|
||||||
return out;
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,256 @@
|
||||||
|
/*
|
||||||
|
* 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.nifi.processors.avro;
|
||||||
|
|
||||||
|
import org.apache.avro.Schema;
|
||||||
|
import org.apache.avro.file.CodecFactory;
|
||||||
|
import org.apache.avro.file.DataFileWriter;
|
||||||
|
import org.apache.avro.generic.GenericData;
|
||||||
|
import org.apache.avro.generic.GenericDatumWriter;
|
||||||
|
import org.apache.avro.generic.GenericRecord;
|
||||||
|
import org.apache.avro.io.DatumWriter;
|
||||||
|
import org.apache.nifi.stream.io.ByteArrayOutputStream;
|
||||||
|
import org.apache.nifi.util.MockFlowFile;
|
||||||
|
import org.apache.nifi.util.TestRunner;
|
||||||
|
import org.apache.nifi.util.TestRunners;
|
||||||
|
import org.junit.Test;
|
||||||
|
|
||||||
|
import java.io.File;
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.util.Arrays;
|
||||||
|
|
||||||
|
public class TestExtractAvroMetadata {
|
||||||
|
|
||||||
|
static final String AVRO_SCHEMA_ATTR = "avro.schema";
|
||||||
|
static final String AVRO_CODEC_ATTR = "avro.codec";
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testDefaultExtraction() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
|
||||||
|
final ByteArrayOutputStream out = getOutputStreamWithOneUser(schema);
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_FINGERPRINT_ATTR, "b2d1d8d3de2833ce");
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_TYPE_ATTR, Schema.Type.RECORD.getName());
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_NAME_ATTR, "User");
|
||||||
|
flowFile.assertAttributeNotExists(AVRO_SCHEMA_ATTR);
|
||||||
|
flowFile.assertAttributeNotExists(ExtractAvroMetadata.ITEM_COUNT_ATTR);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithItemCount() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.COUNT_ITEMS, "true");
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
|
||||||
|
final ByteArrayOutputStream out = getOutputStreamWithMultipleUsers(schema, 6000); // creates 2 blocks
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.ITEM_COUNT_ATTR, "6000");
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithZeroUsers() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.COUNT_ITEMS, "true");
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
|
||||||
|
final ByteArrayOutputStream out = getOutputStreamWithMultipleUsers(schema, 0);
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_FINGERPRINT_ATTR, "b2d1d8d3de2833ce");
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_TYPE_ATTR, Schema.Type.RECORD.getName());
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_NAME_ATTR, "User");
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.ITEM_COUNT_ATTR, "0");
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithMD5() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.FINGERPRINT_ALGORITHM, ExtractAvroMetadata.MD5);
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
|
||||||
|
final ByteArrayOutputStream out = getOutputStreamWithOneUser(schema);
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_FINGERPRINT_ATTR, "3c6a7bee8994be20314dd28c6a3af4f2");
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_TYPE_ATTR, Schema.Type.RECORD.getName());
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_NAME_ATTR, "User");
|
||||||
|
flowFile.assertAttributeNotExists(AVRO_SCHEMA_ATTR);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithSHA256() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.FINGERPRINT_ALGORITHM, ExtractAvroMetadata.SHA_256);
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
|
||||||
|
final ByteArrayOutputStream out = getOutputStreamWithOneUser(schema);
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_FINGERPRINT_ATTR, "683f8f51ecd208038f4f0d39820ee9dd0ef3e32a3bee9371de0a2016d501b113");
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_TYPE_ATTR, Schema.Type.RECORD.getName());
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_NAME_ATTR, "User");
|
||||||
|
flowFile.assertAttributeNotExists(AVRO_SCHEMA_ATTR);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithMetadataKey() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.METADATA_KEYS, AVRO_SCHEMA_ATTR); // test dynamic attribute avro.schema
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
|
||||||
|
final ByteArrayOutputStream out = getOutputStreamWithOneUser(schema);
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeExists(ExtractAvroMetadata.SCHEMA_FINGERPRINT_ATTR);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_TYPE_ATTR, Schema.Type.RECORD.getName());
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_NAME_ATTR, "User");
|
||||||
|
flowFile.assertAttributeEquals(AVRO_SCHEMA_ATTR, schema.toString());
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithMetadataKeysWhitespace() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.METADATA_KEYS, "foo, bar, " + AVRO_SCHEMA_ATTR); // test dynamic attribute avro.schema
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/user.avsc"));
|
||||||
|
final ByteArrayOutputStream out = getOutputStreamWithOneUser(schema);
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeExists(ExtractAvroMetadata.SCHEMA_FINGERPRINT_ATTR);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_TYPE_ATTR, Schema.Type.RECORD.getName());
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_NAME_ATTR, "User");
|
||||||
|
flowFile.assertAttributeEquals(AVRO_SCHEMA_ATTR, schema.toString());
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithNonRecordSchema() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.COUNT_ITEMS, "true");
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/array.avsc"));
|
||||||
|
|
||||||
|
final GenericData.Array<String> data = new GenericData.Array<>(schema, Arrays.asList("one", "two", "three"));
|
||||||
|
final DatumWriter<GenericData.Array<String>> datumWriter = new GenericDatumWriter<>(schema);
|
||||||
|
|
||||||
|
final ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||||
|
final DataFileWriter<GenericData.Array<String>> dataFileWriter = new DataFileWriter<>(datumWriter);
|
||||||
|
dataFileWriter.create(schema, out);
|
||||||
|
dataFileWriter.append(data);
|
||||||
|
dataFileWriter.append(data);
|
||||||
|
dataFileWriter.close();
|
||||||
|
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeExists(ExtractAvroMetadata.SCHEMA_FINGERPRINT_ATTR);
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_TYPE_ATTR, Schema.Type.ARRAY.getName());
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.SCHEMA_NAME_ATTR, "array");
|
||||||
|
flowFile.assertAttributeEquals(ExtractAvroMetadata.ITEM_COUNT_ATTR, "2"); // number of arrays, not elements
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithCodec() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
runner.setProperty(ExtractAvroMetadata.METADATA_KEYS, AVRO_CODEC_ATTR); // test dynamic attribute avro.codec
|
||||||
|
|
||||||
|
final Schema schema = new Schema.Parser().parse(new File("src/test/resources/array.avsc"));
|
||||||
|
|
||||||
|
final GenericData.Array<String> data = new GenericData.Array<>(schema, Arrays.asList("one", "two", "three"));
|
||||||
|
final DatumWriter<GenericData.Array<String>> datumWriter = new GenericDatumWriter<>(schema);
|
||||||
|
|
||||||
|
final ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||||
|
final DataFileWriter<GenericData.Array<String>> dataFileWriter = new DataFileWriter<>(datumWriter);
|
||||||
|
dataFileWriter.setCodec(CodecFactory.deflateCodec(1));
|
||||||
|
dataFileWriter.create(schema, out);
|
||||||
|
dataFileWriter.append(data);
|
||||||
|
dataFileWriter.close();
|
||||||
|
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_SUCCESS, 1);
|
||||||
|
|
||||||
|
final MockFlowFile flowFile = runner.getFlowFilesForRelationship(ExtractAvroMetadata.REL_SUCCESS).get(0);
|
||||||
|
flowFile.assertAttributeEquals("avro.codec", "deflate");
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testExtractionWithBadInput() throws IOException {
|
||||||
|
final TestRunner runner = TestRunners.newTestRunner(new ExtractAvroMetadata());
|
||||||
|
|
||||||
|
final ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||||
|
out.write("not avro".getBytes("UTF-8"));
|
||||||
|
out.flush();
|
||||||
|
|
||||||
|
runner.enqueue(out.toByteArray());
|
||||||
|
runner.run();
|
||||||
|
runner.assertAllFlowFilesTransferred(ExtractAvroMetadata.REL_FAILURE, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
private ByteArrayOutputStream getOutputStreamWithOneUser(Schema schema) throws IOException {
|
||||||
|
final GenericRecord user = new GenericData.Record(schema);
|
||||||
|
user.put("name", "Alyssa");
|
||||||
|
user.put("favorite_number", 256);
|
||||||
|
|
||||||
|
final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
|
||||||
|
return AvroTestUtil.serializeAvroRecord(schema, datumWriter, user);
|
||||||
|
}
|
||||||
|
|
||||||
|
private ByteArrayOutputStream getOutputStreamWithMultipleUsers(Schema schema, int numUsers) throws IOException {
|
||||||
|
final GenericRecord[] users = new GenericRecord[numUsers];
|
||||||
|
for (int i=0; i < numUsers; i++) {
|
||||||
|
final GenericRecord user = new GenericData.Record(schema);
|
||||||
|
user.put("name", "user" + i);
|
||||||
|
user.put("favorite_number", i);
|
||||||
|
users[i] = user;
|
||||||
|
}
|
||||||
|
|
||||||
|
final DatumWriter<GenericRecord> datumWriter = new GenericDatumWriter<>(schema);
|
||||||
|
return AvroTestUtil.serializeAvroRecord(schema, datumWriter, users);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1 @@
|
||||||
|
{"type": "array", "items": "string"}
|
||||||
Loading…
Reference in New Issue