/*
    * 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.chukwa.inputtools.hdfsusage;
  
  import java.util.Map.Entry;
  
  import org.apache.hadoop.chukwa.inputtools.hdfsusage.HDFSUsageMetrics;
  import org.apache.hadoop.chukwa.inputtools.hdfsusage.HDFSUsagePlugin;
  import org.apache.hadoop.chukwa.inputtools.jplugin.ChukwaMetrics;
  import org.apache.hadoop.chukwa.inputtools.jplugin.ChukwaMetricsList;
  import org.apache.hadoop.chukwa.inputtools.jplugin.GenericChukwaMetricsList;
  
  import junit.framework.TestCase;
  
  public class HDFSUsagePluginTest extends TestCase {
  
    public void testGetMetrics() throws Throwable {
      HDFSUsagePlugin plugin = new HDFSUsagePlugin();
      plugin.init(new String[0]);
      ChukwaMetricsList<HDFSUsageMetrics> list = plugin.getMetrics();
      System.out.println(list.getTimestamp());
      for (ChukwaMetrics metrics : list.getMetricsList()) {
        HDFSUsageMetrics usage = (HDFSUsageMetrics) metrics;
        System.out.print(usage.getName());
        System.out.println("size: " + usage.getSize());
      }
      System.out.println();
  
      String xml = list.toXml();
      System.out.println(xml);
  
      GenericChukwaMetricsList gene = new GenericChukwaMetricsList(xml);
      System.out.println(list.getTimestamp());
      for (ChukwaMetrics metrics : gene.getMetricsList()) {
        System.out.print(metrics.getKey());
        for (Entry<String, String> entry : metrics.getAttributes().entrySet()) {
          System.out.println(entry.getKey() + ": " + entry.getValue());
        }
      }
      System.out.println();
    }
  
  }