Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 com.test.database.jedis.pool; import java.io.Closeable; import java.io.IOException; import org.apache.commons.pool2.PooledObjectFactory; import org.apache.commons.pool2.impl.GenericObjectPool; import org.apache.commons.pool2.impl.GenericObjectPoolConfig; /** * Pool.java * * Copyright (c) 2014, TP-Link Co.,Ltd. * Author: liguangpu <liguangpu@tp-link.net> * Created: Feb 3, 2015 */ public abstract class Pool<T> implements Closeable { protected GenericObjectPool<T> internalPool; public Pool() { } public Pool(GenericObjectPoolConfig poolConfig, PooledObjectFactory<T> factory) { initPool(poolConfig, factory); } public void initPool(GenericObjectPoolConfig poolConfig, PooledObjectFactory<T> factory) { if (this.internalPool != null) { try { closeInternalPool(); } catch (Exception e) { } } this.internalPool = new GenericObjectPool<T>(factory, poolConfig); } @Override public void close() throws IOException { closeInternalPool(); } public void destroy() { closeInternalPool(); } public T getResource() { try { return internalPool.borrowObject(); } catch (Exception e) { throw new BattlePlaneException("Can not borrow from Pool", e); } } public void returnResourceObject(final T obj) { if (obj == null) return; try { internalPool.returnObject(obj); } catch (Exception e) { throw new BattlePlaneException("Can not return to Pool", e); } } public void returnResource(final T obj) { if (obj != null) returnResourceObject(obj); } protected void returnBrokenResourceObject(final T obj) { try { internalPool.invalidateObject(obj); } catch (Exception e) { throw new BattlePlaneException("Could not return the resource to the pool", e); } } protected void closeInternalPool() { try { internalPool.close(); } catch (Exception e) { throw new BattlePlaneException("Can not close BattlePlanePool", e); } } }