src/test/org/apache/hadoop/chukwa/extraction/demux/processor/mapper/ChukwaTestOutputCollector.java

package org.apache.hadoop.chukwa.extraction.demux.processor.mapper;


import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import org.apache.hadoop.mapred.OutputCollector;

public class ChukwaTestOutputCollector<K, V> implements OutputCollector<K, V> {
  public HashMap<K, V> data = new HashMap<K, V>();

  public void collect(K key, V value) throws IOException {
    data.put(key, value);
  }

  @Override
  public String toString() {
    Iterator<K> it = data.keySet().iterator();
    K key = null;
    V value = null;
    StringBuilder sb = new StringBuilder();

    while (it.hasNext()) {
      key = it.next();
      value = data.get(key);
      sb.append("Key[").append(key).append("] value[").append(value).append(
          "]\n");
    }
    return sb.toString();
  }

}