| /* |
| * 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 |
| * |
| * https://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<>(writerSchema, readerSchema, |
| classLoader); |
| |
| // Check the schemas. |
| assertEquals(writerSchema, deserializer.getWriterSchema()); |
| assertEquals(readerSchema, deserializer.getReaderSchema()); |
| |
| // Write some records to deserialize. |
| DatumWriter<CharSequence> datumWriter = new GenericDatumWriter<>(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(); |
| } |
| } |