com.enonic.cms.core.plugin.deploy.HotDeployTask.java Source code

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Here is the source code for com.enonic.cms.core.plugin.deploy.HotDeployTask.java

Source

/*
 * Copyright 2000-2013 Enonic AS
 * http://www.enonic.com/license
 */

package com.enonic.cms.core.plugin.deploy;

import java.io.File;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;

import org.apache.commons.io.monitor.FileAlterationMonitor;
import org.apache.commons.io.monitor.FileAlterationObserver;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import com.enonic.cms.core.plugin.PluginManager;

@Component
public final class HotDeployTask {
    private final static Logger LOG = LoggerFactory.getLogger(HotDeployTask.class);

    private File deployDir;

    private long scanPeriod;

    private FileAlterationMonitor monitor;

    private PluginManager pluginManager;

    @Value("${cms.plugin.deployDir}")
    public void setDeployDir(final File deployDir) {
        this.deployDir = deployDir;
    }

    @Value("${cms.plugin.scanPeriod}")
    public void setScanPeriod(final long scanPeriod) {
        this.scanPeriod = scanPeriod;
    }

    @Autowired
    public void setPluginManager(final PluginManager pluginManager) {
        this.pluginManager = pluginManager;
    }

    @PostConstruct
    public void start() {
        try {
            final JarFileFilter filter = new JarFileFilter();

            final FileAlterationObserver observer = new FileAlterationObserver(this.deployDir, filter);
            observer.addListener(new HotDeployListener(this.pluginManager));
            observer.checkAndNotify();

            this.monitor = new FileAlterationMonitor(this.scanPeriod, observer);
            this.monitor.start();

            LOG.info("Hot deploying plugins from [{}]. Scanning every [{}] ms.", this.deployDir.getAbsolutePath(),
                    this.scanPeriod);
        } catch (Exception e) {
            LOG.error("cannot start monitor.", e);
        }
    }

    @PreDestroy
    public void stop() {
        try {
            this.monitor.stop();
        } catch (Exception e) {
            LOG.error("cannot stop monitor correctly.", e);
        }
    }
}