001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.activemq.transport.udp; 018 019import java.nio.ByteBuffer; 020 021/** 022 * A simple implementation of {@link ByteBufferPool} which does no pooling and just 023 * creates new buffers each time 024 */ 025public class SimpleBufferPool implements ByteBufferPool { 026 027 private int defaultSize; 028 private boolean useDirect; 029 030 public SimpleBufferPool() { 031 this(false); 032 } 033 034 public SimpleBufferPool(boolean useDirect) { 035 this.useDirect = useDirect; 036 } 037 038 @Override 039 public synchronized ByteBuffer borrowBuffer() { 040 return createBuffer(); 041 } 042 043 @Override 044 public void returnBuffer(ByteBuffer buffer) { 045 } 046 047 @Override 048 public void setDefaultSize(int defaultSize) { 049 this.defaultSize = defaultSize; 050 } 051 052 public boolean isUseDirect() { 053 return useDirect; 054 } 055 056 /** 057 * Sets whether direct buffers are used or not 058 */ 059 public void setUseDirect(boolean useDirect) { 060 this.useDirect = useDirect; 061 } 062 063 @Override 064 public void start() throws Exception { 065 } 066 067 @Override 068 public void stop() throws Exception { 069 } 070 071 protected ByteBuffer createBuffer() { 072 if (useDirect) { 073 return ByteBuffer.allocateDirect(defaultSize); 074 } else { 075 return ByteBuffer.allocate(defaultSize); 076 } 077 } 078}