| /** |
| * 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 com.datatorrent.stram.codec; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.Serializable; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import com.esotericsoftware.kryo.DefaultSerializer; |
| import com.esotericsoftware.kryo.Kryo; |
| import com.esotericsoftware.kryo.io.Input; |
| import com.esotericsoftware.kryo.io.Output; |
| import com.esotericsoftware.kryo.serializers.JavaSerializer; |
| |
| import com.datatorrent.bufferserver.packet.DataTuple; |
| import com.datatorrent.bufferserver.packet.MessageType; |
| import com.datatorrent.bufferserver.packet.PayloadTuple; |
| import com.datatorrent.bufferserver.packet.Tuple; |
| import com.datatorrent.stram.codec.DefaultStatefulStreamCodec.ClassIdPair; |
| import com.datatorrent.stram.codec.StatefulStreamCodec.DataStatePair; |
| |
| /** |
| * |
| */ |
| public class DefaultStatefulStreamCodecTest |
| { |
| static class TestClass |
| { |
| final String s; |
| final int i; |
| |
| TestClass(String s, int i) |
| { |
| this.s = s; |
| this.i = i; |
| } |
| |
| TestClass() |
| { |
| s = "default!"; |
| i = Integer.MAX_VALUE; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| int hash = 7; |
| hash = 97 * hash + (this.s != null ? this.s.hashCode() : 0); |
| hash = 97 * hash + this.i; |
| return hash; |
| } |
| |
| @Override |
| public boolean equals(Object obj) |
| { |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| final TestClass other = (TestClass)obj; |
| if ((this.s == null) ? (other.s != null) : !this.s.equals(other.s)) { |
| return false; |
| } |
| return this.i == other.i; |
| } |
| |
| } |
| |
| public DefaultStatefulStreamCodecTest() |
| { |
| } |
| |
| @Test |
| public void testVirginKryo() |
| { |
| Kryo coder = new Kryo(); |
| Kryo decoder = new Kryo(); |
| |
| ClassIdPair cip = new ClassIdPair(); |
| |
| Output output = new Output(4096, Integer.MAX_VALUE); |
| coder.writeClassAndObject(output, cip); |
| |
| Input input = new Input(); |
| input.setBuffer(output.toBytes()); |
| decoder.readClassAndObject(input); |
| } |
| |
| @Test |
| public void testString() |
| { |
| StatefulStreamCodec<Object> coder = new DefaultStatefulStreamCodec<>(); |
| StatefulStreamCodec<Object> decoder = new DefaultStatefulStreamCodec<>(); |
| |
| String hello = "hello"; |
| |
| DataStatePair dsp = coder.toDataStatePair(hello); |
| Assert.assertEquals("both are hello", hello, decoder.fromDataStatePair(dsp)); |
| } |
| |
| @Test |
| public void testCustomObject() |
| { |
| DefaultStatefulStreamCodec<TestClass> coder = new DefaultStatefulStreamCodec<>(); |
| DefaultStatefulStreamCodec<TestClass> decoder = coder.newInstance(); |
| |
| TestClass tc = new TestClass("hello!", 42); |
| //String tc = "hello"; |
| |
| DataStatePair dsp = coder.toDataStatePair(tc); |
| Assert.assertNotNull(dsp.state); |
| byte[] state1 = DataTuple.getSerializedTuple(MessageType.CODEC_STATE_VALUE, dsp.state); |
| byte[] data1 = PayloadTuple.getSerializedTuple(0, dsp.data); |
| |
| dsp = coder.toDataStatePair(tc); |
| Assert.assertNull(dsp.state); |
| byte[] data2 = PayloadTuple.getSerializedTuple(0, dsp.data); |
| |
| Assert.assertNotSame(data1, data2); |
| Assert.assertArrayEquals(data1, data2); |
| |
| dsp.state = Tuple.getTuple(state1, 0, state1.length).getData(); |
| dsp.data = Tuple.getTuple(data1, 0, data1.length).getData(); |
| Assert.assertEquals(tc, decoder.fromDataStatePair(dsp)); |
| |
| dsp.state = null; |
| dsp.data = Tuple.getTuple(data2, 0, data2.length).getData(); |
| Assert.assertEquals(tc, decoder.fromDataStatePair(dsp)); |
| |
| coder.resetState(); |
| |
| dsp = coder.toDataStatePair(tc); |
| Assert.assertArrayEquals(state1, DataTuple.getSerializedTuple(MessageType.CODEC_STATE_VALUE, dsp.state)); |
| |
| Assert.assertNull(coder.toDataStatePair(tc).state); |
| data1 = PayloadTuple.getSerializedTuple(Integer.MAX_VALUE, coder.toDataStatePair(tc).data); |
| data2 = PayloadTuple.getSerializedTuple(Integer.MAX_VALUE, coder.toDataStatePair(tc).data); |
| Assert.assertArrayEquals(data1, data2); |
| } |
| |
| public static class TestTuple |
| { |
| final Integer finalField; |
| |
| @SuppressWarnings("unused") |
| private TestTuple() |
| { |
| finalField = null; |
| } |
| |
| public TestTuple(Integer i) |
| { |
| this.finalField = i; |
| } |
| |
| } |
| |
| @Test |
| public void testFinalFieldSerialization() throws Exception |
| { |
| TestTuple t1 = new TestTuple(5); |
| DefaultStatefulStreamCodec<Object> c = new DefaultStatefulStreamCodec<>(); |
| DataStatePair dsp = c.toDataStatePair(t1); |
| TestTuple t2 = (TestTuple)c.fromDataStatePair(dsp); |
| Assert.assertEquals("", t1.finalField, t2.finalField); |
| } |
| |
| @DefaultSerializer(JavaSerializer.class) |
| public static class OuterClass implements Serializable |
| { |
| private static final long serialVersionUID = -3128672061060284420L; |
| |
| @DefaultSerializer(JavaSerializer.class) |
| public class InnerClass implements Serializable |
| { |
| private static final long serialVersionUID = -7176523451391231326L; |
| } |
| |
| } |
| |
| @Test |
| public void testInnerClassSerialization() throws Exception |
| { |
| OuterClass outer = new OuterClass(); |
| Object inner = outer.new InnerClass(); |
| |
| for (Object o: new Object[] {outer, inner}) { |
| DefaultStatefulStreamCodec<Object> c = new DefaultStatefulStreamCodec<>(); |
| DataStatePair dsp = c.toDataStatePair(o); |
| c.fromDataStatePair(dsp); |
| |
| ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| ObjectOutputStream oos = new ObjectOutputStream(bos); |
| oos.writeObject(o); |
| oos.close(); |
| |
| ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray())); |
| ois.readObject(); |
| } |
| } |
| |
| static class NoNewInstanceStatefulStreamCodec<T> extends DefaultStatefulStreamCodec<T> |
| { |
| |
| } |
| |
| @Test |
| public void testNewInstanceMethod() |
| { |
| NoNewInstanceStatefulStreamCodec codec = new NoNewInstanceStatefulStreamCodec(); |
| DefaultStatefulStreamCodec newCodec = codec.newInstance(); |
| Assert.assertNotEquals("Codec and newCodec are not same ", codec, newCodec); |
| Assert.assertEquals("Class of codec and newCodec is same ", newCodec.getClass(), codec.getClass()); |
| } |
| } |