| /* |
| * Copyright 2017 The Apache Software Foundation. |
| * |
| * Licensed 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.specific; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.apache.avro.Schema; |
| import org.apache.avro.io.Encoder; |
| import org.apache.avro.io.EncoderFactory; |
| import org.apache.avro.io.Decoder; |
| import org.apache.avro.io.DecoderFactory; |
| import org.apache.avro.io.DatumReader; |
| import org.apache.avro.io.DatumWriter; |
| import org.apache.avro.util.Utf8; |
| |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import org.apache.avro.specific.test.FullRecordV1; |
| import org.apache.avro.specific.test.FullRecordV2; |
| |
| public class TestGeneratedCode { |
| |
| private final static SpecificData MODEL = new SpecificData(); |
| private final static Schema V1S = FullRecordV1.getClassSchema(); |
| private final static Schema V2S = FullRecordV2.getClassSchema(); |
| |
| @Before |
| public void setUp() { |
| MODEL.setCustomCoders(true); |
| } |
| |
| @Test |
| public void withoutSchemaMigration() throws IOException { |
| FullRecordV1 src = new FullRecordV1(true, 87231, 731L, 54.2832F, 38.321, "Hi there", null); |
| Assert.assertTrue("Test schema must allow for custom coders.", ((SpecificRecordBase) src).hasCustomCoders()); |
| |
| ByteArrayOutputStream out = new ByteArrayOutputStream(1024); |
| Encoder e = EncoderFactory.get().directBinaryEncoder(out, null); |
| DatumWriter<FullRecordV1> w = (DatumWriter<FullRecordV1>) MODEL.createDatumWriter(V1S); |
| w.write(src, e); |
| e.flush(); |
| |
| ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); |
| Decoder d = DecoderFactory.get().directBinaryDecoder(in, null); |
| DatumReader<FullRecordV1> r = (DatumReader<FullRecordV1>) MODEL.createDatumReader(V1S); |
| FullRecordV1 dst = r.read(null, d); |
| |
| Assert.assertEquals(src, dst); |
| } |
| |
| @Test |
| public void withSchemaMigration() throws IOException { |
| FullRecordV2 src = new FullRecordV2(true, 731, 87231, 38L, 54.2832F, "Hi there", |
| ByteBuffer.wrap(Utf8.getBytesFor("Hello, world!"))); |
| Assert.assertTrue("Test schema must allow for custom coders.", ((SpecificRecordBase) src).hasCustomCoders()); |
| |
| ByteArrayOutputStream out = new ByteArrayOutputStream(1024); |
| Encoder e = EncoderFactory.get().directBinaryEncoder(out, null); |
| DatumWriter<FullRecordV2> w = (DatumWriter<FullRecordV2>) MODEL.createDatumWriter(V2S); |
| w.write(src, e); |
| e.flush(); |
| |
| ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); |
| Decoder d = DecoderFactory.get().directBinaryDecoder(in, null); |
| DatumReader<FullRecordV1> r = (DatumReader<FullRecordV1>) MODEL.createDatumReader(V2S, V1S); |
| FullRecordV1 dst = r.read(null, d); |
| |
| FullRecordV1 expected = new FullRecordV1(true, 87231, 731L, 54.2832F, 38.0, null, "Hello, world!"); |
| Assert.assertEquals(expected, dst); |
| } |
| } |