bigtop-master/bigtop-bigpetstore/bigpetstore-mapreduce/src/main/java/org/apache/bigtop/bigpetstore/util/StringUtils.java
/**
 * 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.bigtop.bigpetstore.util;

import java.util.ArrayList;

/**
********************************************************************
* Borrowed from apache-commons-lang StringUtils, overtime we might
* add more elements here .
* To maintain minor dependencies on a cluster sometimes this is easier
* jar's manually in the hadoop classpath or via DistributedCache.
********************************************************************/

public class StringUtils {

     public static String substringBefore(String str, String separator) {
         int pos = str.indexOf(separator);
         if (pos == -1) {
             return str;
         }
         return str.substring(0, pos);
     }


     public static String substringAfter(String str, String separator) {
         if (str.length()==0) {
             return str;
         }
         if (separator == null) {
             return "";
         }
         int pos = str.indexOf(separator);
         if (pos == -1) {
             return "";
         }
         return str.substring(pos + separator.length());
     }
 }