org.rhq.plugins.jslee.ServiceSbbDiscoveryComponent.java Source code

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Here is the source code for org.rhq.plugins.jslee.ServiceSbbDiscoveryComponent.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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 General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.rhq.plugins.jslee;

import java.util.HashSet;
import java.util.Set;

import javax.management.MBeanServerConnection;
import javax.management.MBeanServerInvocationHandler;
import javax.management.ObjectName;
import javax.security.auth.login.LoginException;
import javax.slee.SbbID;
import javax.slee.ServiceID;
import javax.slee.management.DeploymentMBean;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.core.domain.configuration.PropertySimple;
import org.rhq.core.domain.resource.ResourceType;
import org.rhq.core.pluginapi.inventory.DiscoveredResourceDetails;
import org.rhq.core.pluginapi.inventory.InvalidPluginConfigurationException;
import org.rhq.core.pluginapi.inventory.ResourceDiscoveryComponent;
import org.rhq.core.pluginapi.inventory.ResourceDiscoveryContext;
import org.rhq.plugins.jslee.utils.MBeanServerUtils;

public class ServiceSbbDiscoveryComponent implements ResourceDiscoveryComponent<ServiceComponent> {

    private final Log log = LogFactory.getLog(ServiceSbbDiscoveryComponent.class);

    private ServiceID serviceId = null;

    public Set<DiscoveredResourceDetails> discoverResources(ResourceDiscoveryContext<ServiceComponent> context)
            throws InvalidPluginConfigurationException, Exception {
        if (log.isTraceEnabled()) {
            log.trace("discoverResources() called");
        }

        // Get the connection up and ready
        MBeanServerUtils mbeanUtils = context.getParentResourceComponent().getMBeanServerUtils();
        try {
            MBeanServerConnection connection = mbeanUtils.getConnection();
            mbeanUtils.login();

            ObjectName depMBeanObj = new ObjectName(DeploymentMBean.OBJECT_NAME);

            Set<DiscoveredResourceDetails> discoveredSBBs = new HashSet<DiscoveredResourceDetails>();

            DeploymentMBean depMBean = (DeploymentMBean) MBeanServerInvocationHandler.newProxyInstance(connection,
                    depMBeanObj, DeploymentMBean.class, false);

            if (serviceId == null) {
                serviceId = context.getParentResourceComponent().getServiceID();
            }

            SbbID[] sbbIds = depMBean.getSbbs(serviceId);

            addSbb(sbbIds, discoveredSBBs, context.getResourceType());

            if (log.isInfoEnabled()) {
                log.info(
                        "Discovered " + discoveredSBBs.size() + " JAIN SLEE SBB Components for " + serviceId + ".");
            }
            return discoveredSBBs;
        } finally {
            try {
                mbeanUtils.logout();
            } catch (LoginException e) {
                if (log.isDebugEnabled()) {
                    log.debug("Failed to logout from secured JMX", e);
                }
            }
        }
    }

    private void addSbb(SbbID[] sbbIds, Set<DiscoveredResourceDetails> discoveredSbbs, ResourceType resourceType) {
        for (SbbID sbbId : sbbIds) {
            String key = sbbId.toString() + "@" + serviceId;
            String description = sbbId.toString();

            // Create new Service resource
            DiscoveredResourceDetails discoveredSbb = new DiscoveredResourceDetails(resourceType, key,
                    sbbId.getName(), sbbId.getVersion(), description, null, null);

            // Add properties to Service resource
            discoveredSbb.getPluginConfiguration().put(new PropertySimple("name", sbbId.getName()));
            discoveredSbb.getPluginConfiguration().put(new PropertySimple("version", sbbId.getVersion()));
            discoveredSbb.getPluginConfiguration().put(new PropertySimple("vendor", sbbId.getVendor()));

            discoveredSbbs.add(discoveredSbb);
        }
    }
}