Java tutorial
/* ARCWriterPool * * $Id: ARCWriterPool.java 4535 2006-08-25 00:14:29Z stack-sf $ * * Created on Jan 22, 2004 * * Copyright (C) 2004 Internet Archive. * * This file is part of the Heritrix web crawler (crawler.archive.org). * * Heritrix is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * any later version. * * Heritrix is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser Public License for more details. * * You should have received a copy of the GNU Lesser Public License * along with Heritrix; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package com.cyberway.issue.io.arc; import java.util.concurrent.atomic.AtomicInteger; import org.apache.commons.pool.BasePoolableObjectFactory; import com.cyberway.issue.io.WriterPool; import com.cyberway.issue.io.WriterPoolMember; import com.cyberway.issue.io.WriterPoolSettings; /** * A pool of ARCWriters. * * @author stack */ public class ARCWriterPool extends WriterPool { /** * Constructor * * @param settings Settings for this pool. * @param poolMaximumActive * @param poolMaximumWait */ public ARCWriterPool(final WriterPoolSettings settings, final int poolMaximumActive, final int poolMaximumWait) { this(new AtomicInteger(), settings, poolMaximumActive, poolMaximumWait); } /** * Constructor * * @param serial Used to generate unique filename sequences * @param settings Settings for this pool. * @param poolMaximumActive * @param poolMaximumWait */ public ARCWriterPool(final AtomicInteger serial, final WriterPoolSettings settings, final int poolMaximumActive, final int poolMaximumWait) { super(serial, new BasePoolableObjectFactory() { public Object makeObject() throws Exception { return new ARCWriter(serial, settings.getOutputDirs(), settings.getPrefix(), settings.getSuffix(), settings.isCompressed(), settings.getMaxSize(), settings.getMetadata()); } public void destroyObject(Object arcWriter) throws Exception { ((WriterPoolMember) arcWriter).close(); super.destroyObject(arcWriter); } }, settings, poolMaximumActive, poolMaximumWait); } }