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.dataflow.data.nontagged.serde;
  
  import java.io.DataInput;
  import java.io.DataOutput;
  import java.io.IOException;
  
  import org.apache.asterix.om.base.AString;
  import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.util.string.UTF8StringReader;
  import org.apache.hyracks.util.string.UTF8StringUtil;
  import org.apache.hyracks.util.string.UTF8StringWriter;
  
  /**
   * NOTE: this class will have objection creations in each serialize/deserialize
   * call. Therefore, in order to have efficient runtime implementations, please
   * use <code>UTF8StringReader</code> and <code>UTF8StringWriter</code> whenever possible.
   */
  public class AStringSerializerDeserializer implements ISerializerDeserializer<AString> {
  
      private static final long serialVersionUID = 1L;
  
      /**
       * Using this singleton object may instantiate too many objects
       *
       * @deprecated use {{@link #AStringSerializerDeserializer(UTF8StringWriter, UTF8StringReader)}}
       */
      @Deprecated
      public static final AStringSerializerDeserializer INSTANCE = new AStringSerializerDeserializer();
      private final UTF8StringWriter utf8StringWriter;
      private final UTF8StringReader utf8StringReader;
  
      private AStringSerializerDeserializer() {
          this(null, null);
      }
  
      public AStringSerializerDeserializer(UTF8StringWriter utf8StringWriter) {
          this(utf8StringWriter, null);
      }
  
      public AStringSerializerDeserializer(UTF8StringWriter utf8StringWriter, UTF8StringReader utf8StringReader) {
          this.utf8StringWriter = utf8StringWriter;
          this.utf8StringReader = utf8StringReader;
      }
  
      @Override
      public AString deserialize(DataInput in) throws HyracksDataException {
          try {
              return new AString(UTF8StringUtil.readUTF8(in, utf8StringReader));
          } catch (IOException e) {
              throw HyracksDataException.create(e);
          }
      }
  
      @Override
      public void serialize(AString instance, DataOutput out) throws HyracksDataException {
          serialize(instance.getStringValue(), out);
      }
  
      public void serialize(String value, DataOutput out) throws HyracksDataException {
          try {
              UTF8StringUtil.writeUTF8(value, out, utf8StringWriter);
          } catch (IOException e) {
              throw HyracksDataException.create(e);
          }
      }
  
      public void serialize(char[] buffer, int start, int length, DataOutput out) throws IOException {
          UTF8StringUtil.writeUTF8(buffer, start, length, out, utf8StringWriter);
      }
  }
  