001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.juneau;
018
019import java.io.*;
020
021/**
022 * A ByteArrayInputStream with a usable close() method.
023 */
024public class CloseableByteArrayInputStream extends ByteArrayInputStream {
025   boolean isClosed;
026
027   public CloseableByteArrayInputStream(byte[] buf) {
028      super(buf);
029   }
030
031   @Override
032   public synchronized int read() {
033      if (isClosed)
034         throw new IllegalStateException("Stream is closed");
035      return super.read();
036   }
037
038   @Override
039   public void close() {
040      isClosed = true;
041   }
042}