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 BufferPool} which does no pooling and just 023 * creates new buffers each time 024 * 025 * 026 */ 027public class SimpleBufferPool implements ByteBufferPool { 028 029 private int defaultSize; 030 private boolean useDirect; 031 032 public SimpleBufferPool() { 033 this(false); 034 } 035 036 public SimpleBufferPool(boolean useDirect) { 037 this.useDirect = useDirect; 038 } 039 040 public synchronized ByteBuffer borrowBuffer() { 041 return createBuffer(); 042 } 043 044 public void returnBuffer(ByteBuffer buffer) { 045 } 046 047 public void setDefaultSize(int defaultSize) { 048 this.defaultSize = defaultSize; 049 } 050 051 public boolean isUseDirect() { 052 return useDirect; 053 } 054 055 /** 056 * Sets whether direct buffers are used or not 057 */ 058 public void setUseDirect(boolean useDirect) { 059 this.useDirect = useDirect; 060 } 061 062 public void start() throws Exception { 063 } 064 065 public void stop() throws Exception { 066 } 067 068 protected ByteBuffer createBuffer() { 069 if (useDirect) { 070 return ByteBuffer.allocateDirect(defaultSize); 071 } else { 072 return ByteBuffer.allocate(defaultSize); 073 } 074 } 075 076}