/*
 *  This class is part of the OSGiJMX plugin for the VisualVM, allowing
 *  to have some basic administration functionality over an OSGi platform
 *
 * Copyright (C) 2009  Kiev Gama (kiev.gama at gmail.com)
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
**/
package osgijmx.impl;

import java.util.ArrayList;
import java.util.List;
import javax.management.Notification;
import javax.management.NotificationBroadcasterSupport;
import javax.management.ObjectName;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import osgijmx.BundleMXBean;
import osgijmx.OSGiPlatformMXBean;

/**
 *
 * @author kiev
 */
 class OSGiPlatformMXBeanImpl extends NotificationBroadcasterSupport implements OSGiPlatformMXBean {
    private ArrayList<BundleMXBean> bundles = new ArrayList<BundleMXBean>();
    private BundleContext ctx;

    private static int sequenceNumber;
    
    public OSGiPlatformMXBeanImpl(BundleContext ctx) {
        this.ctx = ctx;
    }

    void addBundleMXBean(BundleMXBean bean) {
        synchronized (bundles) {
            bundles.add(bean);
        }
    }
    
    void removeBundleMXBean(BundleMXBean bean) {
        synchronized (bundles) {
            bundles.remove(bean);
        }
    }

    public List<BundleMXBean> getBundles() {
        return bundles;
    }

    public BundleMXBean getBundle(long bundleID) {
        for (BundleMXBean bundleBean : bundles) {
            if (bundleBean.getBundleId() == bundleID)
                return bundleBean;
        }
        return null;
    }

    public String getFrameworkVersion() {
        return ctx.getProperty(Constants.FRAMEWORK_VERSION);
    }

    public String getFrameworkVendor() {
        return ctx.getProperty(Constants.FRAMEWORK_VENDOR);
    }

    public String getFrameworkLanguage() {
        return ctx.getProperty(Constants.FRAMEWORK_LANGUAGE);
    }

    public void installBundle(String location) throws Exception {
        ctx.installBundle(location);
    }

    synchronized void sendNotification(long bundleId) {
        try {
            //a really simple notification. maybe add more information to it later...
            Notification n = new Notification("Bundle-Changed",new ObjectName("osgijmx:type=bundle,id=" + bundleId),sequenceNumber++);
            n.setUserData(bundleId);
            sendNotification(n);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}