001// ***************************************************************************************************************************
002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.  See the NOTICE file *
003// * distributed with this work for additional information regarding copyright ownership.  The ASF licenses this file        *
004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance            *
005// * with the License.  You may obtain a copy of the License at                                                              *
006// *                                                                                                                         *
007// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
008// *                                                                                                                         *
009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an  *
010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the        *
011// * specific language governing permissions and limitations under the License.                                              *
012// ***************************************************************************************************************************
013package org.apache.juneau.rest;
014
015import java.io.*;
016
017import javax.servlet.*;
018
019import org.apache.juneau.encoders.*;
020
021/**
022 * @deprecated Use {@link org.apache.juneau.rest.util.FinishableServletOutputStream}
023 */
024@Deprecated
025public class FinishableServletOutputStream extends ServletOutputStream implements Finishable {
026
027   final OutputStream os;
028   final ServletOutputStream sos;
029   final Finishable f;
030
031   FinishableServletOutputStream(OutputStream os) {
032      this.os = os;
033      this.sos = (os instanceof ServletOutputStream ? (ServletOutputStream)os : null);
034      this.f = (os instanceof Finishable ? (Finishable)os : null);
035   }
036
037   @Override /* OutputStream */
038   public final void write(byte[] b, int off, int len) throws IOException {
039      os.write(b, off, len);
040   }
041
042   @Override /* OutputStream */
043   public final void write(int b) throws IOException {
044      os.write(b);
045   }
046
047   @Override /* OutputStream */
048   public final void flush() throws IOException {
049      os.flush();
050   }
051
052   @Override /* OutputStream */
053   public final void close() throws IOException {
054      os.close();
055   }
056
057   @Override /* ServletOutputStream */
058   public boolean isReady() {
059      return sos == null ? true : sos.isReady();
060   }
061
062   @Override /* ServletOutputStream */
063   public void setWriteListener(WriteListener arg0) {
064      if (sos != null)
065         sos.setWriteListener(arg0);
066   }
067
068   /**
069    * Calls {@link Finishable#finish()} on the underlying output stream.
070    *
071    * <p>
072    * A no-op if the underlying output stream does not implement the {@link Finishable} interface.
073    */
074   @Override /* Finishable */
075   public void finish() throws IOException {
076      if (f != null)
077         f.finish();
078   }
079}