| /** |
| * 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; |
| |
| import java.io.IOException; |
| import java.util.Random; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| |
| public class TestDefaultStringifier extends TestCase { |
| |
| private static Configuration conf = new Configuration(); |
| private static final Log LOG = LogFactory.getLog(TestDefaultStringifier.class); |
| |
| private char[] alphabet = "abcdefghijklmnopqrstuvwxyz".toCharArray(); |
| |
| public void testWithWritable() throws Exception { |
| |
| conf.set("io.serializations", "org.apache.hadoop.io.serializer.WritableSerialization"); |
| |
| LOG.info("Testing DefaultStringifier with Text"); |
| |
| Random random = new Random(); |
| |
| //test with a Text |
| for(int i=0;i<10;i++) { |
| //generate a random string |
| StringBuilder builder = new StringBuilder(); |
| int strLen = random.nextInt(40); |
| for(int j=0; j< strLen; j++) { |
| builder.append(alphabet[random.nextInt(alphabet.length)]); |
| } |
| Text text = new Text(builder.toString()); |
| DefaultStringifier<Text> stringifier = new DefaultStringifier<Text>(conf, Text.class); |
| |
| String str = stringifier.toString(text); |
| Text claimedText = stringifier.fromString(str); |
| LOG.info("Object: " + text); |
| LOG.info("String representation of the object: " + str); |
| assertEquals(text, claimedText); |
| } |
| } |
| |
| public void testWithJavaSerialization() throws Exception { |
| conf.set("io.serializations", "org.apache.hadoop.io.serializer.JavaSerialization"); |
| |
| LOG.info("Testing DefaultStringifier with Serializable Integer"); |
| |
| //Integer implements Serializable |
| Integer testInt = Integer.valueOf(42); |
| DefaultStringifier<Integer> stringifier = new DefaultStringifier<Integer>(conf, Integer.class); |
| |
| String str = stringifier.toString(testInt); |
| Integer claimedInt = stringifier.fromString(str); |
| LOG.info("String representation of the object: " + str); |
| |
| assertEquals(testInt, claimedInt); |
| } |
| |
| public void testStoreLoad() throws IOException { |
| |
| LOG.info("Testing DefaultStringifier#store() and #load()"); |
| conf.set("io.serializations", "org.apache.hadoop.io.serializer.WritableSerialization"); |
| Text text = new Text("uninteresting test string"); |
| String keyName = "test.defaultstringifier.key1"; |
| |
| DefaultStringifier.store(conf,text, keyName); |
| |
| Text claimedText = DefaultStringifier.load(conf, keyName, Text.class); |
| assertEquals("DefaultStringifier#load() or #store() might be flawed" |
| , text, claimedText); |
| |
| } |
| |
| public void testStoreLoadArray() throws IOException { |
| LOG.info("Testing DefaultStringifier#storeArray() and #loadArray()"); |
| conf.set("io.serializations", "org.apache.hadoop.io.serializer.JavaSerialization"); |
| |
| String keyName = "test.defaultstringifier.key2"; |
| |
| Integer[] array = new Integer[] {1,2,3,4,5}; |
| |
| |
| DefaultStringifier.storeArray(conf, array, keyName); |
| |
| Integer[] claimedArray = DefaultStringifier.<Integer>loadArray(conf, keyName, Integer.class); |
| for (int i = 0; i < array.length; i++) { |
| assertEquals("two arrays are not equal", array[i], claimedArray[i]); |
| } |
| |
| } |
| |
| } |