Java tutorial
/* * Copyright (c) 2011, Cloudera, Inc. All Rights Reserved. * * Cloudera, Inc. 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 * * This software 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.cloudera.lib.util; import com.cloudera.circus.test.XTest; import org.apache.hadoop.conf.Configuration; import org.testng.Assert; import org.testng.annotations.Test; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.Reader; import java.io.StringReader; import java.util.Properties; public class TestXConfiguration extends XTest { @Test public void constructors() throws Exception { XConfiguration conf = new XConfiguration(); Assert.assertEquals(conf.size(), 0); byte[] bytes = "<configuration><property><name>a</name><value>A</value></property></configuration>" .getBytes(); InputStream is = new ByteArrayInputStream(bytes); conf = new XConfiguration(is); Assert.assertEquals(conf.size(), 1); Assert.assertEquals(conf.get("a"), "A"); String str = "<configuration><property><name>a</name><value>A</value></property></configuration>"; Reader reader = new StringReader(str); conf = new XConfiguration(reader); Assert.assertEquals(conf.size(), 1); Assert.assertEquals(conf.get("a"), "A"); Properties props = new Properties(); props.setProperty("a", "A"); conf = new XConfiguration(props); Assert.assertEquals(conf.size(), 1); Assert.assertEquals(conf.get("a"), "A"); } @Test(expectedExceptions = IOException.class) public void constructorsFail1() throws Exception { new XConfiguration(new StringReader("<xonfiguration>")); } @Test(expectedExceptions = IOException.class) public void constructorsFail2() throws Exception { new XConfiguration(new StringReader("<xonfiguration></xonfiguration>")); } @Test(expectedExceptions = IOException.class) public void constructorsFail3() throws Exception { InputStream is = new ByteArrayInputStream("<xonfiguration></xonfiguration>".getBytes()); new XConfiguration(is); } @Test(expectedExceptions = IOException.class) public void constructorsFail4() throws Exception { Reader reader = new StringReader("<configuration><qroperty></qroperty></configuration>"); new XConfiguration(reader); } @Test(expectedExceptions = IOException.class) public void constructorsFail5() throws Exception { String str = "<configuration><property><oame>a</oname><value>A</value></property></configuration>"; Reader reader = new StringReader(str); new XConfiguration(reader); } @Test(expectedExceptions = IOException.class) public void constructorsFail6() throws Exception { String str = "<configuration><property><name>a</nname><walue>A</walue></property></configuration>"; Reader reader = new StringReader(str); new XConfiguration(reader); } @Test public void getKlass() throws Exception { Properties props = new Properties(); XConfiguration conf = new XConfiguration(props); Assert.assertEquals(conf.getClassByName("java.lang.String "), String.class); } @Test public void copy() throws Exception { Configuration srcConf = new Configuration(false); Configuration targetConf = new Configuration(false); srcConf.set("testParameter1", "valueFromSource"); srcConf.set("testParameter2", "valueFromSource"); targetConf.set("testParameter2", "valueFromTarget"); targetConf.set("testParameter3", "valueFromTarget"); XConfiguration.copy(srcConf, targetConf); Assert.assertEquals("valueFromSource", targetConf.get("testParameter1")); Assert.assertEquals("valueFromSource", targetConf.get("testParameter2")); Assert.assertEquals("valueFromTarget", targetConf.get("testParameter3")); } @Test public void injectDefaults() throws Exception { Configuration srcConf = new Configuration(false); Configuration targetConf = new Configuration(false); srcConf.set("testParameter1", "valueFromSource"); srcConf.set("testParameter2", "valueFromSource"); targetConf.set("testParameter2", "originalValueFromTarget"); targetConf.set("testParameter3", "originalValueFromTarget"); XConfiguration.injectDefaults(srcConf, targetConf); Assert.assertEquals("valueFromSource", targetConf.get("testParameter1")); Assert.assertEquals("originalValueFromTarget", targetConf.get("testParameter2")); Assert.assertEquals("originalValueFromTarget", targetConf.get("testParameter3")); Assert.assertEquals("valueFromSource", srcConf.get("testParameter1")); Assert.assertEquals("valueFromSource", srcConf.get("testParameter2")); Assert.assertNull(srcConf.get("testParameter3")); } @Test public void trim() { XConfiguration conf = new XConfiguration(); conf.set("a", " A "); conf.set("b", "B"); conf = conf.trim(); Assert.assertEquals(conf.get("a"), "A"); Assert.assertEquals(conf.get("b"), "B"); } @Test public void resolve() { XConfiguration conf = new XConfiguration(); conf.set("a", "A"); conf.set("b", "${a}"); Assert.assertEquals(conf.getRaw("a"), "A"); Assert.assertEquals(conf.getRaw("b"), "${a}"); conf = conf.resolve(); Assert.assertEquals(conf.getRaw("a"), "A"); Assert.assertEquals(conf.getRaw("b"), "A"); } @Test public void testVarResolutionAndSysProps() { String userName = System.getProperty("user.name"); XConfiguration conf = new XConfiguration(); conf.set("a", "A"); conf.set("b", "${a}"); conf.set("c", "${user.name}"); conf.set("d", "${aaa}"); Assert.assertEquals(conf.getRaw("a"), "A"); Assert.assertEquals(conf.getRaw("b"), "${a}"); Assert.assertEquals(conf.getRaw("c"), "${user.name}"); Assert.assertEquals(conf.get("a"), "A"); Assert.assertEquals(conf.get("b"), "A"); Assert.assertEquals(conf.get("c"), userName); Assert.assertEquals(conf.get("d"), "${aaa}"); conf.set("user.name", "foo"); Assert.assertEquals(conf.get("user.name"), "foo"); } @Test public void toXMLString() throws Exception { XConfiguration conf = new XConfiguration(); conf.set("a", "A"); String str = conf.toXmlString(); Assert.assertTrue(str.startsWith("<?xml")); conf = new XConfiguration(new StringReader(str)); Assert.assertEquals(conf.get("a"), "A"); str = conf.toXmlString(false); Assert.assertFalse(str.startsWith("<?xml")); conf = new XConfiguration(new StringReader(str)); Assert.assertEquals(conf.get("a"), "A"); } @Test public void toProperties() throws Exception { XConfiguration conf = new XConfiguration(); conf.set("a", "A"); Properties props = conf.toProperties(); Assert.assertEquals(props.size(), 1); Assert.assertEquals(props.getProperty("a"), "A"); } }