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

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Here is the source code for org.rhq.plugins.jslee.RAEntityLinkDiscoveryComponent.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.management.ResourceManagementMBean;
import javax.slee.resource.ResourceAdaptorID;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.core.domain.configuration.PropertySimple;
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 RAEntityLinkDiscoveryComponent implements ResourceDiscoveryComponent<RAEntityComponent> {

    private final Log log = LogFactory.getLog(this.getClass());

    private String raEntityName;
    private ResourceAdaptorID raID;

    public Set<DiscoveredResourceDetails> discoverResources(ResourceDiscoveryContext<RAEntityComponent> context)
            throws InvalidPluginConfigurationException, Exception {
        if (log.isDebugEnabled()) {
            log.debug("RAEntityLinkDiscoveryComponent.discoverResources() called");
        }

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

        MBeanServerUtils mbeanUtils = context.getParentResourceComponent().getMBeanServerUtils();

        try {
            MBeanServerConnection connection = mbeanUtils.getConnection();
            mbeanUtils.login();

            ObjectName resourceManagement = new ObjectName(ResourceManagementMBean.OBJECT_NAME);

            ResourceManagementMBean resourceManagementMBean = (ResourceManagementMBean) MBeanServerInvocationHandler
                    .newProxyInstance(connection, resourceManagement,
                            javax.slee.management.ResourceManagementMBean.class, false);

            raEntityName = context.getParentResourceComponent().getRAEntityName();
            this.raID = context.getParentResourceComponent().getResourceAdaptorID();

            String[] links = resourceManagementMBean.getLinkNames(raEntityName);

            for (String link : links) {
                String description = "Link : " + link + " For ResourceAdaptor Entity : " + raEntityName;

                DiscoveredResourceDetails discoveredEntity = new DiscoveredResourceDetails(
                        context.getResourceType(), link, link + " Link", raID.getVersion(), description, null,
                        null);
                discoveredEntity.getPluginConfiguration().put(new PropertySimple("linkName", link));

                discoveredLinks.add(discoveredEntity);
            }

            if (log.isInfoEnabled()) {
                log.info("Discovered " + discoveredLinks.size()
                        + " JAIN SLEE Resource Adaptor Entity Link Components.");
            }
            return discoveredLinks;
        } finally {
            try {
                mbeanUtils.logout();
            } catch (LoginException e) {
                if (log.isDebugEnabled()) {
                    log.debug("Failed to logout from secured JMX", e);
                }
            }
        }
    }
}