| /* |
| * 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.codegentest; |
| |
| import org.apache.avro.io.DecoderFactory; |
| import org.apache.avro.io.EncoderFactory; |
| import org.apache.avro.specific.SpecificDatumReader; |
| import org.apache.avro.specific.SpecificDatumWriter; |
| import org.apache.avro.specific.SpecificRecordBase; |
| import org.junit.Assert; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| |
| abstract class AbstractSpecificRecordTest { |
| |
| @SuppressWarnings("unchecked") |
| <T extends SpecificRecordBase> void verifySerDeAndStandardMethods(T original) { |
| final SpecificDatumWriter<T> datumWriterFromSchema = new SpecificDatumWriter<>(original.getSchema()); |
| final SpecificDatumReader<T> datumReaderFromSchema = new SpecificDatumReader<>(original.getSchema(), |
| original.getSchema()); |
| verifySerDeAndStandardMethods(original, datumWriterFromSchema, datumReaderFromSchema); |
| final SpecificDatumWriter<T> datumWriterFromClass = new SpecificDatumWriter(original.getClass()); |
| final SpecificDatumReader<T> datumReaderFromClass = new SpecificDatumReader(original.getClass()); |
| verifySerDeAndStandardMethods(original, datumWriterFromClass, datumReaderFromClass); |
| } |
| |
| private <T extends SpecificRecordBase> void verifySerDeAndStandardMethods(T original, |
| SpecificDatumWriter<T> datumWriter, SpecificDatumReader<T> datumReader) { |
| final byte[] serialized = serialize(original, datumWriter); |
| final T copy = deserialize(serialized, datumReader); |
| Assert.assertEquals(original, copy); |
| // In addition to equals() tested above, make sure the other methods that use |
| // SpecificData work as intended |
| // compareTo() throws an exception for maps, otherwise we would have tested it |
| // here |
| // Assert.assertEquals(0, original.compareTo(copy)); |
| Assert.assertEquals(original.hashCode(), copy.hashCode()); |
| Assert.assertEquals(original.toString(), copy.toString()); |
| } |
| |
| private <T extends SpecificRecordBase> byte[] serialize(T object, SpecificDatumWriter<T> datumWriter) { |
| ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); |
| try { |
| datumWriter.write(object, EncoderFactory.get().directBinaryEncoder(outputStream, null)); |
| return outputStream.toByteArray(); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private <T extends SpecificRecordBase> T deserialize(byte[] bytes, SpecificDatumReader<T> datumReader) { |
| try { |
| final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes); |
| return datumReader.read(null, DecoderFactory.get().directBinaryDecoder(byteArrayInputStream, null)); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |