Java tutorial
/* * Copyright 2012 Twitter, Inc. * * Licensed 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.twitter.hdfsdu; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; import junit.framework.Test; import junit.framework.TestCase; import junit.framework.TestSuite; import org.json.simple.JSONObject; import com.google.common.io.LineReader; import com.twitter.hdfsdu.data.DataTransformer; import com.twitter.hdfsdu.data.NodeData; public class DataTransformerTest extends TestCase { /** * Create the test case * * @param testName name of the test case */ public DataTransformerTest(String testName) { super(testName); } /** * @return the suite of tests being tested */ public static Test suite() { return new TestSuite(DataTransformerTest.class); } /** * Rigourous Test :-) */ public void testDataTransformer() throws Exception { //load file InputStream inputStream = DataTransformerTest.class.getClassLoader() .getResourceAsStream("com/twitter/hdfsdu/data/example.txt"); InputStreamReader input = new InputStreamReader(inputStream); LineReader l = new LineReader(input); String line = l.readLine(); List<NodeData> nlist = new ArrayList<NodeData>(); while (line != null) { String[] entries = line.split("\t"); NodeData n = new NodeData(); n.path = entries[0]; n.fileSize = entries[1]; nlist.add(n); line = l.readLine(); } JSONObject ans = DataTransformer.getJSONTree("/", 2, nlist); System.out.println(ans.toJSONString()); // assertTrue( true ); } }