//
// MessagePack for Java
//
// Copyright (C) 2009-2011 FURUHASHI Sadayuki
//
// Licensed 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.msgpack.io;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.BufferOverflowException;
public class ByteBufferOutput implements Output {
public static interface ExpandBufferCallback {
ByteBuffer call(ByteBuffer buffer, int len) throws IOException;
}
private ByteBuffer buffer;
private ExpandBufferCallback callback;
public ByteBufferOutput(ByteBuffer buffer) {
this(buffer, null);
}
public ByteBufferOutput(ByteBuffer buffer, ExpandBufferCallback callback) {
this.buffer = buffer;
this.callback = callback;
}
private void reserve(int len) throws IOException {
if(len <= buffer.remaining()) {
return;
}
if(callback == null) {
throw new BufferOverflowException();
}
buffer = callback.call(buffer, len);
}
public void write(byte[] b, int off, int len) throws IOException {
reserve(len);
buffer.put(b, off, len);
}
public void write(ByteBuffer bb) throws IOException {
reserve(bb.remaining());
buffer.put(bb);
}
public void writeByte(byte v) throws IOException {
reserve(1);
buffer.put(v);
}
public void writeShort(short v) throws IOException {
reserve(2);
buffer.putShort(v);
}
public void writeInt(int v) throws IOException {
reserve(4);
buffer.putInt(v);
}
public void writeLong(long v) throws IOException {
reserve(8);
buffer.putLong(v);
}
public void writeFloat(float v) throws IOException {
reserve(4);
buffer.putFloat(v);
}
public void writeDouble(double v) throws IOException {
reserve(8);
buffer.putDouble(v);
}
public void writeByteAndByte(byte b, byte v) throws IOException {
reserve(2);
buffer.put(b);
buffer.put(v);
}
public void writeByteAndShort(byte b, short v) throws IOException {
reserve(3);
buffer.put(b);
buffer.putShort(v);
}
public void writeByteAndInt(byte b, int v) throws IOException {
reserve(5);
buffer.put(b);
buffer.putInt(v);
}
public void writeByteAndLong(byte b, long v) throws IOException {
reserve(9);
buffer.put(b);
buffer.putLong(v);
}
public void writeByteAndFloat(byte b, float v) throws IOException {
reserve(5);
buffer.put(b);
buffer.putFloat(v);
}
public void writeByteAndDouble(byte b, double v) throws IOException {
reserve(9);
buffer.put(b);
buffer.putDouble(v);
}
public void flush() throws IOException {
}
public void close() {
}
}