/*
* Copyright 2009 Red Hat, Inc.
*
* Red Hat 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.jboss.netty.handler.codec.replay;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.channels.GatheringByteChannel;
import java.nio.channels.ScatteringByteChannel;
import java.nio.charset.Charset;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBufferFactory;
import org.jboss.netty.buffer.ChannelBufferIndexFinder;
import org.jboss.netty.buffer.ChannelBuffers;
/**
* @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
* @author <a href="http://gleamynode.net/">Trustin Lee</a>
*
* @version $Rev: 2294 $, $Date: 2010-06-01 18:19:19 +0900 (Tue, 01 Jun 2010) $
*
*/
public class ReplayingDecoderBuffer implements ChannelBuffer {
// private static final Error REPLAY = new ReplayError();
private final ChannelBuffer buffer;
private boolean terminated;
public static ReplayingDecoderBuffer EMPTY_BUFFER = new ReplayingDecoderBuffer(ChannelBuffers.EMPTY_BUFFER);
static {
EMPTY_BUFFER.terminate();
}
public ReplayingDecoderBuffer(ChannelBuffer buffer) {
this.buffer = buffer;
}
public void terminate() {
terminated = true;
}
public int capacity() {
if (terminated) {
return buffer.capacity();
} else {
return Integer.MAX_VALUE;
}
}
public boolean isDirect() {
return buffer.isDirect();
}
public boolean hasArray() {
return false;
}
public byte[] array() {
throw new UnsupportedOperationException();
}
public int arrayOffset() {
throw new UnsupportedOperationException();
}
public void clear() {
throw new UnreplayableOperationException();
}
@Override
public boolean equals(Object obj) {
return this == obj;
}
public int compareTo(ChannelBuffer buffer) {
throw new UnreplayableOperationException();
}
public ChannelBuffer copy() {
throw new UnreplayableOperationException();
}
public ChannelBuffer copy(int index, int length) {
// checkIndex(index, length);
return buffer.copy(index, length);
}
public void discardReadBytes() {
throw new UnreplayableOperationException();
}
public void ensureWritableBytes(int writableBytes) {
throw new UnreplayableOperationException();
}
public ChannelBuffer duplicate() {
throw new UnreplayableOperationException();
}
public byte getByte(int index) {
// checkIndex(index);
return buffer.getByte(index);
}
public short getUnsignedByte(int index) {
// checkIndex(index);
return (short) (buffer.getByte(index) & 0xFF);
}
public void getBytes(int index, byte[] dst, int dstIndex, int length) {
// checkIndex(index, length);
buffer.getBytes(index, dst, dstIndex, length);
}
public void getBytes(int index, byte[] dst) {
// checkIndex(index, dst.length);
buffer.getBytes(index, dst,0,dst.length);
}
public void getBytes(int index, ByteBuffer dst) {
throw new UnreplayableOperationException();
}
public void getBytes(int index, ChannelBuffer dst, int dstIndex, int length) {
// checkIndex(index, length);
buffer.getBytes(index, dst, dstIndex, length);
}
public void getBytes(int index, ChannelBuffer dst, int length) {
throw new UnreplayableOperationException();
}
public void getBytes(int index, ChannelBuffer dst) {
throw new UnreplayableOperationException();
}
public int getBytes(int index, GatheringByteChannel out, int length)
throws IOException {
throw new UnreplayableOperationException();
}
public void getBytes(int index, OutputStream out, int length)
throws IOException {
throw new UnreplayableOperationException();
}
public int getInt(int index) {
// checkIndex(index, 4);
return buffer.getInt(index);
}
public long getUnsignedInt(int index) {
// checkIndex(index, 4);
return buffer.getUnsignedInt(index);
}
public long getLong(int index) {
// checkIndex(index, 8);
return buffer.getLong(index);
}
public int getMedium(int index) {
// checkIndex(index, 3);
return buffer.getMedium(index);
}
public int getUnsignedMedium(int index) {
// checkIndex(index, 3);
return buffer.getUnsignedMedium(index);
}
public short getShort(int index) {
// checkIndex(index, 2);
return buffer.getShort(index);
}
public int getUnsignedShort(int index) {
// checkIndex(index, 2);
return buffer.getShort(index)& 0xFFFF;
}
public char getChar(int index) {
// checkIndex(index, 2);
return buffer.getChar(index);
}
public float getFloat(int index) {
// checkIndex(index, 4);
return buffer.getFloat(index);
}
public double getDouble(int index) {
// checkIndex(index, 8);
return buffer.getDouble(index);
}
@Override
public int hashCode() {
throw new UnreplayableOperationException();
}
public int indexOf(int fromIndex, int toIndex, byte value) {
int endIndex = buffer.indexOf(fromIndex, toIndex, value);
// if (endIndex < 0) {
// throw REPLAY;
// }
return endIndex;
}
public int indexOf(int fromIndex, int toIndex,
ChannelBufferIndexFinder indexFinder) {
int endIndex = buffer.indexOf(fromIndex, toIndex, indexFinder);
// if (endIndex < 0) {
// throw REPLAY;
// }
return endIndex;
}
public int bytesBefore(byte value) {
int bytes = buffer.bytesBefore(value);
// if (bytes < 0) {
// throw REPLAY;
// }
return bytes;
}
public int bytesBefore(ChannelBufferIndexFinder indexFinder) {
int bytes = buffer.bytesBefore(indexFinder);
// if (bytes < 0) {
// throw REPLAY;
// }
return bytes;
}
public int bytesBefore(int length, byte value) {
// checkReadableBytes(length);
int bytes = buffer.bytesBefore(length, value);
// if (bytes < 0) {
// throw REPLAY;
// }
return bytes;
}
public int bytesBefore(int length, ChannelBufferIndexFinder indexFinder) {
// checkReadableBytes(length);
int bytes = buffer.bytesBefore(length, indexFinder);
// if (bytes < 0) {
// throw REPLAY;
// }
return bytes;
}
public int bytesBefore(int index, int length, byte value) {
int bytes = buffer.bytesBefore(index, length, value);
// if (bytes < 0) {
// throw REPLAY;
// }
return bytes;
}
public int bytesBefore(int index, int length,
ChannelBufferIndexFinder indexFinder) {
int bytes = buffer.bytesBefore(index, length, indexFinder);
// if (bytes < 0) {
// throw REPLAY;
// }
return bytes;
}
public void markReaderIndex() {
buffer.markReaderIndex();
}
public void markWriterIndex() {
throw new UnreplayableOperationException();
}
public ChannelBufferFactory factory() {
return buffer.factory();
}
public ByteOrder order() {
return buffer.order();
}
public boolean readable() {
return terminated? buffer.readableBytes() > 0 : true;
}
public int readableBytes() {
if (terminated) {
return buffer.readableBytes();
} else {
return Integer.MAX_VALUE - buffer.readerIndex();
}
}
public byte readByte() {
// checkReadableBytes(1);
return buffer.readByte();
}
public short readUnsignedByte() {
// checkReadableBytes(1);
return (short) (buffer. readByte() & 0xFF);
}
public void readBytes(byte[] dst, int dstIndex, int length) {
// checkReadableBytes(length);
buffer.readBytes(dst, dstIndex, length);
}
public void readBytes(byte[] dst) {
// checkReadableBytes(dst.length);
buffer.readBytes(dst,0,dst.length);
}
public void readBytes(ByteBuffer dst) {
throw new UnreplayableOperationException();
}
public void readBytes(ChannelBuffer dst, int dstIndex, int length) {
// checkReadableBytes(length);
buffer.readBytes(dst, dstIndex, length);
}
public void readBytes(ChannelBuffer dst, int length) {
throw new UnreplayableOperationException();
}
public void readBytes(ChannelBuffer dst) {
throw new UnreplayableOperationException();
}
@Deprecated
public ChannelBuffer readBytes(ChannelBufferIndexFinder endIndexFinder) {
int endIndex = buffer.indexOf(buffer.readerIndex(), buffer.writerIndex(), endIndexFinder);
// if (endIndex < 0) {
// throw REPLAY;
// }
return buffer.readBytes(endIndex - buffer.readerIndex());
}
public int readBytes(GatheringByteChannel out, int length)
throws IOException {
throw new UnreplayableOperationException();
}
public ChannelBuffer readBytes(int length) {
// checkReadableBytes(length);
return buffer.readBytes(length);
}
@Deprecated
public ChannelBuffer readSlice(
ChannelBufferIndexFinder endIndexFinder) {
int endIndex = buffer.indexOf(buffer.readerIndex(), buffer.writerIndex(), endIndexFinder);
// if (endIndex < 0) {
// throw REPLAY;
// }
return buffer.readSlice(endIndex - buffer.readerIndex());
}
public ChannelBuffer readSlice(int length) {
// checkReadableBytes(length);
return buffer.readSlice(length);
}
public void readBytes(OutputStream out, int length) throws IOException {
throw new UnreplayableOperationException();
}
public int readerIndex() {
return buffer.readerIndex();
}
public void readerIndex(int readerIndex) {
buffer.readerIndex(readerIndex);
}
public int readInt() {
// checkReadableBytes(4);
return buffer.readInt();
}
public long readUnsignedInt() {
// checkReadableBytes(4);
return buffer.readInt() & 0xFFFFFFFFL;
}
public long readLong() {
// checkReadableBytes(8);
return buffer.readLong();
}
public int readMedium() {
// checkReadableBytes(3);
return buffer.readMedium();
}
public int readUnsignedMedium() {
// checkReadableBytes(3);
return buffer.readUnsignedMedium();
}
public short readShort() {
// checkReadableBytes(2);
return buffer.readShort();
}
public int readUnsignedShort() {
// checkReadableBytes(2);
return buffer.readShort() & 0xFFFF;
}
public char readChar() {
// checkReadableBytes(2);
return buffer.readChar();
}
public float readFloat() {
// checkReadableBytes(4);
return buffer.readFloat();
}
public double readDouble() {
// checkReadableBytes(8);
return buffer.readDouble();
}
public void resetReaderIndex() {
buffer.resetReaderIndex();
}
public void resetWriterIndex() {
throw new UnreplayableOperationException();
}
public void setByte(int index, int value) {
throw new UnreplayableOperationException();
}
public void setBytes(int index, byte[] src, int srcIndex, int length) {
throw new UnreplayableOperationException();
}
public void setBytes(int index, byte[] src) {
throw new UnreplayableOperationException();
}
public void setBytes(int index, ByteBuffer src) {
throw new UnreplayableOperationException();
}
public void setBytes(int index, ChannelBuffer src, int srcIndex, int length) {
throw new UnreplayableOperationException();
}
public void setBytes(int index, ChannelBuffer src, int length) {
throw new UnreplayableOperationException();
}
public void setBytes(int index, ChannelBuffer src) {
throw new UnreplayableOperationException();
}
public int setBytes(int index, InputStream in, int length)
throws IOException {
throw new UnreplayableOperationException();
}
public void setZero(int index, int length) {
throw new UnreplayableOperationException();
}
public int setBytes(int index, ScatteringByteChannel in, int length)
throws IOException {
throw new UnreplayableOperationException();
}
public void setIndex(int readerIndex, int writerIndex) {
throw new UnreplayableOperationException();
}
public void setInt(int index, int value) {
throw new UnreplayableOperationException();
}
public void setLong(int index, long value) {
throw new UnreplayableOperationException();
}
public void setMedium(int index, int value) {
throw new UnreplayableOperationException();
}
public void setShort(int index, int value) {
throw new UnreplayableOperationException();
}
public void setChar(int index, int value) {
throw new UnreplayableOperationException();
}
public void setFloat(int index, float value) {
throw new UnreplayableOperationException();
}
public void setDouble(int index, double value) {
throw new UnreplayableOperationException();
}
@Deprecated
public int skipBytes(ChannelBufferIndexFinder firstIndexFinder) {
int oldReaderIndex = buffer.readerIndex();
int newReaderIndex = buffer.indexOf(oldReaderIndex, buffer.writerIndex(), firstIndexFinder);
// if (newReaderIndex < 0) {
// throw REPLAY;
// }
buffer.readerIndex(newReaderIndex);
return newReaderIndex - oldReaderIndex;
}
public void skipBytes(int length) {
// checkReadableBytes(length);
buffer.skipBytes(length);
}
public ChannelBuffer slice() {
throw new UnreplayableOperationException();
}
public ChannelBuffer slice(int index, int length) {
// checkIndex(index, length);
return buffer.slice(index, length);
}
public ByteBuffer toByteBuffer() {
throw new UnreplayableOperationException();
}
public ByteBuffer toByteBuffer(int index, int length) {
// checkIndex(index, length);
return buffer.toByteBuffer(index, length);
}
public ByteBuffer[] toByteBuffers() {
throw new UnreplayableOperationException();
}
public ByteBuffer[] toByteBuffers(int index, int length) {
// checkIndex(index, length);
return buffer.toByteBuffers(index, length);
}
public String toString(int index, int length, Charset charset) {
// checkIndex(index, length);
return buffer.toString(index, length, charset);
}
public String toString(Charset charsetName) {
throw new UnreplayableOperationException();
}
@Deprecated
public String toString(int index, int length, String charsetName) {
// checkIndex(index, length);
return buffer.toString(index, length, charsetName);
}
@Deprecated
public String toString(
int index, int length, String charsetName,
ChannelBufferIndexFinder terminatorFinder) {
// checkIndex(index, length);
return buffer.toString(index, length, charsetName, terminatorFinder);
}
@Deprecated
public String toString(String charsetName) {
throw new UnreplayableOperationException();
}
@Deprecated
public String toString(
String charsetName, ChannelBufferIndexFinder terminatorFinder) {
throw new UnreplayableOperationException();
}
@Override
public String toString() {
return getClass().getSimpleName() + '(' +
"ridx=" +
readerIndex() +
", " +
"widx=" +
writerIndex() +
')';
}
public boolean writable() {
return false;
}
public int writableBytes() {
return 0;
}
public void writeByte(int value) {
throw new UnreplayableOperationException();
}
public void writeBytes(byte[] src, int srcIndex, int length) {
throw new UnreplayableOperationException();
}
public void writeBytes(byte[] src) {
throw new UnreplayableOperationException();
}
public void writeBytes(ByteBuffer src) {
throw new UnreplayableOperationException();
}
public void writeBytes(ChannelBuffer src, int srcIndex, int length) {
throw new UnreplayableOperationException();
}
public void writeBytes(ChannelBuffer src, int length) {
throw new UnreplayableOperationException();
}
public void writeBytes(ChannelBuffer src) {
throw new UnreplayableOperationException();
}
public int writeBytes(InputStream in, int length) throws IOException {
throw new UnreplayableOperationException();
}
public int writeBytes(ScatteringByteChannel in, int length)
throws IOException {
throw new UnreplayableOperationException();
}
public void writeInt(int value) {
throw new UnreplayableOperationException();
}
public void writeLong(long value) {
throw new UnreplayableOperationException();
}
public void writeMedium(int value) {
throw new UnreplayableOperationException();
}
public void writeZero(int length) {
throw new UnreplayableOperationException();
}
public int writerIndex() {
return buffer.writerIndex();
}
public void writerIndex(int writerIndex) {
throw new UnreplayableOperationException();
}
public void writeShort(int value) {
throw new UnreplayableOperationException();
}
public void writeChar(int value) {
throw new UnreplayableOperationException();
}
public void writeFloat(float value) {
throw new UnreplayableOperationException();
}
public void writeDouble(double value) {
throw new UnreplayableOperationException();
}
// private void checkIndex(int index) {
// if (index > buffer.writerIndex()) {
// throw REPLAY;
// }
// }
// private void checkIndex(int index, int length) {
// if (index + length > buffer.writerIndex()) {
// throw REPLAY;
// }
// }
// private void checkReadableBytes(int readableBytes) {
// if (buffer.readableBytes() < readableBytes) {
// throw REPLAY;
// }
// }
}