Mercurial > hg > Members > sugi > MessagePack-java
view src/main/java/org/msgpack/io/ByteBufferOutput.java @ 0:cb825acd883a
first commit
author | sugi |
---|---|
date | Sat, 18 Oct 2014 15:06:15 +0900 |
parents | |
children |
line wrap: on
line source
// // MessagePack for Java // // Copyright (C) 2009 - 2013 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); } @Override public void write(byte[] b, int off, int len) throws IOException { reserve(len); buffer.put(b, off, len); } @Override public void write(ByteBuffer bb) throws IOException { reserve(bb.remaining()); buffer.put(bb); } @Override public void writeByte(byte v) throws IOException { reserve(1); buffer.put(v); } @Override public void writeShort(short v) throws IOException { reserve(2); buffer.putShort(v); } @Override public void writeInt(int v) throws IOException { reserve(4); buffer.putInt(v); } @Override public void writeLong(long v) throws IOException { reserve(8); buffer.putLong(v); } @Override public void writeFloat(float v) throws IOException { reserve(4); buffer.putFloat(v); } @Override public void writeDouble(double v) throws IOException { reserve(8); buffer.putDouble(v); } @Override public void writeByteAndByte(byte b, byte v) throws IOException { reserve(2); buffer.put(b); buffer.put(v); } @Override public void writeByteAndShort(byte b, short v) throws IOException { reserve(3); buffer.put(b); buffer.putShort(v); } @Override public void writeByteAndInt(byte b, int v) throws IOException { reserve(5); buffer.put(b); buffer.putInt(v); } @Override public void writeByteAndLong(byte b, long v) throws IOException { reserve(9); buffer.put(b); buffer.putLong(v); } @Override public void writeByteAndFloat(byte b, float v) throws IOException { reserve(5); buffer.put(b); buffer.putFloat(v); } @Override public void writeByteAndDouble(byte b, double v) throws IOException { reserve(9); buffer.put(b); buffer.putDouble(v); } @Override public void flush() throws IOException { } @Override public void close() { } }