| /** |
| * 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.hadoop.io.serializer; |
| |
| import java.io.Serializable; |
| |
| import org.apache.hadoop.io.DataInputBuffer; |
| import org.apache.hadoop.io.DataOutputBuffer; |
| import static org.apache.hadoop.io.TestGenericWritable.CONF_TEST_KEY; |
| import static org.apache.hadoop.io.TestGenericWritable.CONF_TEST_VALUE; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.io.TestGenericWritable.Baz; |
| import org.apache.hadoop.io.TestGenericWritable.FooGenericWritable; |
| import org.apache.hadoop.io.WritableComparator; |
| |
| import org.junit.Test; |
| import static org.junit.Assert.*; |
| |
| public class TestWritableSerialization { |
| |
| private static final Configuration conf = new Configuration(); |
| |
| @Test |
| public void testWritableSerialization() throws Exception { |
| Text before = new Text("test writable"); |
| Text after = SerializationTestUtil.testSerialization(conf, before); |
| assertEquals(before, after); |
| } |
| |
| @Test |
| public void testWritableConfigurable() throws Exception { |
| |
| //set the configuration parameter |
| conf.set(CONF_TEST_KEY, CONF_TEST_VALUE); |
| |
| //reuse TestGenericWritable inner classes to test |
| //writables that also implement Configurable. |
| FooGenericWritable generic = new FooGenericWritable(); |
| generic.setConf(conf); |
| Baz baz = new Baz(); |
| generic.set(baz); |
| Baz result = SerializationTestUtil.testSerialization(conf, baz); |
| assertEquals(baz, result); |
| assertNotNull(result.getConf()); |
| } |
| |
| @Test |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| public void testWritableComparatorJavaSerialization() throws Exception { |
| Serialization ser = new JavaSerialization(); |
| |
| Serializer<TestWC> serializer = ser.getSerializer(TestWC.class); |
| DataOutputBuffer dob = new DataOutputBuffer(); |
| serializer.open(dob); |
| TestWC orig = new TestWC(0); |
| serializer.serialize(orig); |
| serializer.close(); |
| |
| Deserializer<TestWC> deserializer = ser.getDeserializer(TestWC.class); |
| DataInputBuffer dib = new DataInputBuffer(); |
| dib.reset(dob.getData(), 0, dob.getLength()); |
| deserializer.open(dib); |
| TestWC deser = deserializer.deserialize(null); |
| deserializer.close(); |
| assertEquals(orig, deser); |
| } |
| |
| static class TestWC extends WritableComparator implements Serializable { |
| static final long serialVersionUID = 0x4344; |
| final int val; |
| TestWC() { this(7); } |
| TestWC(int val) { this.val = val; } |
| @Override |
| public boolean equals(Object o) { |
| if (o instanceof TestWC) { |
| return ((TestWC)o).val == val; |
| } |
| return false; |
| } |
| @Override |
| public int hashCode() { return val; } |
| } |
| |
| } |