tests/test-hive-udfs/src/main/java/org/apache/impala/ReplaceStringUdf.java

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// 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
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package org.apache.impala;

import java.text.ParseException;
import org.apache.hadoop.hive.ql.exec.UDF;
import org.apache.hadoop.io.Text;

public class ReplaceStringUdf extends UDF {
  public Text evaluate(Text para) throws ParseException {
    if ((null == para) || ("".equals(para.toString()))) {
      return new Text("");
    }
    return new Text(para.toString().replace("s", "ss"));
  }
}