/*
* @(#)$Id: codetemplate_xbird.xml 943 2006-09-13 07:03:37Z yui $
*
* Copyright 2006-2008 Makoto YUI
*
* 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.
*
* Contributors:
* Makoto YUI - initial implementation
*/
package xbird.util.nio;
import java.nio.ByteBuffer;
/**
*
* <DIV lang="en"></DIV>
* <DIV lang="ja"></DIV>
*
* @author Makoto YUI (yuin405+xbird@gmail.com)
*/
public final class ByteBufferFactory {
private ByteBufferFactory() {}
public synchronized static ByteBuffer allocateDirectView(ByteBuffer byteBuffer, final int size) {
if(byteBuffer == null || ((byteBuffer.capacity() - byteBuffer.limit()) < size)) {
byteBuffer = ByteBuffer.allocateDirect(size);
}
byteBuffer.limit(byteBuffer.position() + size);
ByteBuffer view = byteBuffer.slice();
byteBuffer.position(byteBuffer.limit());
return view;
}
public synchronized static ByteBuffer allocateView(ByteBuffer byteBuffer, final boolean direct, final int size) {
if(direct) {
return allocateDirectView(byteBuffer, size);
}
if(byteBuffer == null || ((byteBuffer.capacity() - byteBuffer.limit()) < size)) {
byteBuffer = ByteBuffer.allocate(size);
}
byteBuffer.limit(byteBuffer.position() + size);
ByteBuffer view = byteBuffer.slice();
byteBuffer.position(byteBuffer.limit());
return view;
}
}