InMemoryCachingStreamBridge.java

  1. /*
  2.  * Licensed to the Apache Software Foundation (ASF) under one
  3.  * or more contributor license agreements.  See the NOTICE file
  4.  * distributed with this work for additional information
  5.  * regarding copyright ownership.  The ASF licenses this file
  6.  * to you under the Apache License, Version 2.0 (the
  7.  * "License"); you may not use this file except in compliance
  8.  * with the License.  You may obtain a copy of the License at
  9.  *
  10.  * http://www.apache.org/licenses/LICENSE-2.0
  11.  *
  12.  * Unless required by applicable law or agreed to in writing,
  13.  * software distributed under the License is distributed on an
  14.  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15.  * KIND, either express or implied.  See the License for the
  16.  * specific language governing permissions and limitations
  17.  * under the License.
  18.  */

  19. package org.apache.commons.compress.compressors.pack200;

  20. import java.io.ByteArrayInputStream;
  21. import java.io.ByteArrayOutputStream;
  22. import java.io.IOException;
  23. import java.io.InputStream;

  24. /**
  25.  * StreamBridge that caches all data written to the output side in memory.
  26.  *
  27.  * @since 1.3
  28.  */
  29. final class InMemoryCachingStreamBridge extends AbstractStreamBridge {

  30.     InMemoryCachingStreamBridge() {
  31.         super(new ByteArrayOutputStream());
  32.     }

  33.     @Override
  34.     InputStream createInputStream() throws IOException {
  35.         return new ByteArrayInputStream(((ByteArrayOutputStream) out).toByteArray());
  36.     }
  37. }