/**
* Copyright 2014 IPONWEB
*
* 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 net.iponweb.hadoop.streaming.tools;
import java.util.AbstractMap;
import java.util.Map;
public class KeyValueSplitter {
private String delimiter;
private int numKeys = 1;
public KeyValueSplitter(String delimiter) {
this.delimiter = delimiter;
}
public KeyValueSplitter(String delimiter, int numKeys) {
this.delimiter = delimiter;
this.numKeys = numKeys;
}
public Map.Entry<String, String> split(String s) {
int idx = s.indexOf(delimiter);
if (idx < 0) {
return new AbstractMap.SimpleEntry<String, String>(s, "");
}
int k = 1;
while (k < numKeys) {
idx = s.indexOf(delimiter,idx + 1);
if (idx < 0) break;
k ++;
}
return new AbstractMap.SimpleEntry<String, String>(
s.substring(0, idx),
s.substring(idx+1)
);
}
}