/**
* 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.avro.hadoop.io;
import static org.junit.Assert.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.apache.avro.Schema;
import org.apache.avro.io.DatumWriter;
import org.apache.avro.io.Encoder;
import org.apache.avro.io.EncoderFactory;
import org.apache.avro.generic.GenericDatumWriter;
import org.apache.avro.mapred.AvroWrapper;
import org.junit.Test;
public class TestAvroValueDeserializer {
@Test
public void testDeserialize() throws IOException {
// Create a deserializer.
Schema writerSchema = Schema.create(Schema.Type.STRING);
Schema readerSchema = Schema.create(Schema.Type.STRING);
ClassLoader classLoader = this.getClass().getClassLoader();
AvroValueDeserializer<CharSequence> deserializer
= new AvroValueDeserializer<CharSequence>(writerSchema, readerSchema,
classLoader);
// Check the schemas.
assertEquals(writerSchema, deserializer.getWriterSchema());
assertEquals(readerSchema, deserializer.getReaderSchema());
// Write some records to deserialize.
DatumWriter<CharSequence> datumWriter = new GenericDatumWriter<CharSequence>(writerSchema);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
Encoder encoder = EncoderFactory.get().binaryEncoder(outputStream, null);
datumWriter.write("record1", encoder);
datumWriter.write("record2", encoder);
encoder.flush();
// Deserialize the records.
ByteArrayInputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
deserializer.open(inputStream);
AvroWrapper<CharSequence> record = null;
record = deserializer.deserialize(record);
assertEquals("record1", record.datum().toString());
record = deserializer.deserialize(record);
assertEquals("record2", record.datum().toString());
deserializer.close();
}
}