content: /*
   * 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.asterix.runtime.evaluators.functions.utils;
  
  import java.io.IOException;
  
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.data.std.api.IPointable;
  import org.apache.hyracks.data.std.primitive.UTF8StringPointable;
  import org.apache.hyracks.data.std.util.GrowableArray;
  import org.apache.hyracks.data.std.util.UTF8StringBuilder;
  
  /**
   * A wrapper for string replace methods.
   */
  public final class StringReplacer {
      // For outputting the result.
      private final UTF8StringBuilder resultBuilder = new UTF8StringBuilder();
      private final GrowableArray resultArray = new GrowableArray();
      private final int resultArrayInitLength;
  
      public StringReplacer() throws HyracksDataException {
          try {
              resultArray.getDataOutput().writeByte(ATypeTag.SERIALIZED_STRING_TYPE_TAG);
              resultArrayInitLength = resultArray.getLength();
          } catch (IOException e) {
              throw HyracksDataException.create(e);
          }
      }
  
      public boolean findAndReplace(UTF8StringPointable input, UTF8StringPointable search, UTF8StringPointable replace,
              int limit) throws HyracksDataException {
          try {
              resultArray.setSize(resultArrayInitLength);
              return input.findAndReplace(search, replace, limit, resultBuilder, resultArray);
          } catch (IOException e) {
              throw HyracksDataException.create(e);
          }
      }
  
      public void assignResult(IPointable resultPointable) {
          resultPointable.set(resultArray.getByteArray(), 0, resultArray.getLength());
      }
  }
  