/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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* KIND, either express or implied. See the License for the
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* under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* This class is not thread safe. * * @since 4.0 */ @NotThreadSafe public class SimpleInputBuffer extends ExpandableBuffer implements ContentInputBuffer { private boolean endOfStream = false; public SimpleInputBuffer(int buffersize, final ByteBufferAllocator allocator) { super(buffersize, allocator); } public void reset() { this.endOfStream = false; super.clear(); } public int consumeContent(final ContentDecoder decoder) throws IOException { setInputMode(); int totalRead = 0; int bytesRead; while ((bytesRead = decoder.read(this.buffer)) != -1) { if (bytesRead == 0) { if (!this.buffer.hasRemaining()) { expand(); } else { break; } } else { totalRead += bytesRead; } } if (bytesRead == -1 || decoder.isCompleted()) { this.endOfStream = true; } return totalRead; } public boolean isEndOfStream() { return !hasData() && this.endOfStream; } public int read() throws IOException { if (isEndOfStream()) { return -1; } setOutputMode(); return this.buffer.get() & 0xff; } public int read(final byte[] b, int off, int len) throws IOException { if (isEndOfStream()) { return -1; } if (b == null) { return 0; } setOutputMode(); int chunk = len; if (chunk > this.buffer.remaining()) { chunk = this.buffer.remaining(); } this.buffer.get(b, off, chunk); return chunk; } public int read(final byte[] b) throws IOException { if (isEndOfStream()) { return -1; } if (b == null) { return 0; } return read(b, 0, b.length); } public void shutdown() { this.endOfStream = true; } }