org.artofsolving.jodconverter.office.ProcessPoolOfficeManager Maven / Gradle / Ivy
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//
// JODConverter - Java OpenDocument Converter
// Copyright 2004-2012 Mirko Nasato and contributors
//
// JODConverter is Open Source software, you can redistribute it and/or
// modify it under either (at your option) of the following licenses
//
// 1. The GNU Lesser General Public License v3 (or later)
// -> http://www.gnu.org/licenses/lgpl-3.0.txt
// 2. The Apache License, Version 2.0
// -> http://www.apache.org/licenses/LICENSE-2.0.txt
//
package org.artofsolving.jodconverter.office;
import java.io.File;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
import org.artofsolving.jodconverter.process.ProcessManager;
class ProcessPoolOfficeManager implements OfficeManager {
private final BlockingQueue pool;
private final PooledOfficeManager[] pooledManagers;
private final long taskQueueTimeout;
private volatile boolean running = false;
private final Logger logger = Logger.getLogger(ProcessPoolOfficeManager.class.getName());
public ProcessPoolOfficeManager(File officeHome, UnoUrl[] unoUrls, String[] runAsArgs, File templateProfileDir, File workDir,
long retryTimeout, long taskQueueTimeout, long taskExecutionTimeout, int maxTasksPerProcess,
ProcessManager processManager) {
this.taskQueueTimeout = taskQueueTimeout;
pool = new ArrayBlockingQueue(unoUrls.length);
pooledManagers = new PooledOfficeManager[unoUrls.length];
for (int i = 0; i < unoUrls.length; i++) {
PooledOfficeManagerSettings settings = new PooledOfficeManagerSettings(unoUrls[i]);
settings.setRunAsArgs(runAsArgs);
settings.setTemplateProfileDir(templateProfileDir);
settings.setWorkDir(workDir);
settings.setOfficeHome(officeHome);
settings.setRetryTimeout(retryTimeout);
settings.setTaskExecutionTimeout(taskExecutionTimeout);
settings.setMaxTasksPerProcess(maxTasksPerProcess);
settings.setProcessManager(processManager);
pooledManagers[i] = new PooledOfficeManager(settings);
}
logger.info("ProcessManager implementation is " + processManager.getClass().getSimpleName());
}
public synchronized void start() throws OfficeException {
for (int i = 0; i < pooledManagers.length; i++) {
pooledManagers[i].start();
releaseManager(pooledManagers[i]);
}
running = true;
}
public void execute(OfficeTask task) throws IllegalStateException, OfficeException {
if (!running) {
throw new IllegalStateException("this OfficeManager is currently stopped");
}
PooledOfficeManager manager = null;
try {
manager = acquireManager();
if (manager == null) {
throw new OfficeException("no office manager available");
}
manager.execute(task);
} finally {
if (manager != null) {
releaseManager(manager);
}
}
}
public synchronized void stop() throws OfficeException {
running = false;
logger.info("stopping");
pool.clear();
for (int i = 0; i < pooledManagers.length; i++) {
pooledManagers[i].stop();
}
logger.info("stopped");
}
private PooledOfficeManager acquireManager() {
try {
return pool.poll(taskQueueTimeout, TimeUnit.MILLISECONDS);
} catch (InterruptedException interruptedException) {
throw new OfficeException("interrupted", interruptedException);
}
}
private void releaseManager(PooledOfficeManager manager) {
try {
pool.put(manager);
} catch (InterruptedException interruptedException) {
throw new OfficeException("interrupted", interruptedException);
}
}
public boolean isRunning() {
return running;
}
}