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.camel.dataformat.lzf;
  
  import java.io.InputStream;
  import java.io.OutputStream;
  
  import com.ning.compress.lzf.LZFInputStream;
  import com.ning.compress.lzf.LZFOutputStream;
  import com.ning.compress.lzf.parallel.PLZFOutputStream;
  import org.apache.camel.Exchange;
  import org.apache.camel.spi.DataFormat;
  import org.apache.camel.spi.DataFormatName;
  import org.apache.camel.spi.annotations.Dataformat;
  import org.apache.camel.support.builder.OutputStreamBuilder;
  import org.apache.camel.support.service.ServiceSupport;
  import org.apache.camel.util.IOHelper;
  
  /**
   * LZF data format. See {@link org.apache.camel.model.dataformat.LZFDataFormat} for "deflate" compression.
   */
  @Dataformat("lzf")
  public class LZFDataFormat extends ServiceSupport implements DataFormat, DataFormatName {
  
      private boolean usingParallelCompression;
  
      @Override
      public String getDataFormatName() {
          return "lzf";
      }
  
      @Override
      public void marshal(final Exchange exchange, final Object graph, final OutputStream stream) throws Exception {
          InputStream is = exchange.getContext().getTypeConverter().mandatoryConvertTo(InputStream.class, exchange, graph);
          OutputStream compressedOutput = usingParallelCompression ? new PLZFOutputStream(stream) : new LZFOutputStream(stream);
          try {
              IOHelper.copy(is, compressedOutput);
          } finally {
              // must close all input streams
              IOHelper.close(is, compressedOutput);
          }
      }
  
      @Override
      public Object unmarshal(final Exchange exchange, final InputStream inputStream) throws Exception {
          InputStream compressedInput = null;
  
          OutputStreamBuilder osb = OutputStreamBuilder.withExchange(exchange);
          try {
              compressedInput = new LZFInputStream(inputStream);
              IOHelper.copy(compressedInput, osb);
              return osb.build();
          } finally {
              // must close all input streams
              IOHelper.close(osb, compressedInput, inputStream);
          }
      }
  
      public boolean isUsingParallelCompression() {
          return usingParallelCompression;
      }
  
      public void setUsingParallelCompression(boolean parallelCompression) {
          this.usingParallelCompression = parallelCompression;
      }
  
      @Override
      protected void doStart() throws Exception {
          // noop
      }
  
      @Override
      protected void doStop() throws Exception {
          // noop
      }
  }
  