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

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Here is the source code for org.rhq.plugins.jslee.DeployableUnitDiscoveryComponent.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.DeployableUnitDescriptor;
import javax.slee.management.DeployableUnitID;
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.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 DeployableUnitDiscoveryComponent implements ResourceDiscoveryComponent<JainSleeServerComponent> {

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

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

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

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

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

            ObjectName deploymentmanagement = new ObjectName(DeploymentMBean.OBJECT_NAME);

            DeploymentMBean deploymentMBean = (DeploymentMBean) MBeanServerInvocationHandler.newProxyInstance(
                    connection, deploymentmanagement, javax.slee.management.DeploymentMBean.class, false);

            DeployableUnitID[] deployableUnitIDs = deploymentMBean.getDeployableUnits();
            for (DeployableUnitID deployableUnitID : deployableUnitIDs) {
                DeployableUnitDescriptor deployableUnitDescriptor = deploymentMBean.getDescriptor(deployableUnitID);

                String key = deployableUnitID.getURL();

                // replace needed for Windows OS as \ needs to be escaped
                String[] elements = key.split(System.getProperty("file.separator").replaceAll("\\\\", "\\\\\\\\"));
                String lastElement = elements[(elements.length - 1)];
                String name = lastElement.substring(0, lastElement.lastIndexOf("."));

                String description = name + " -- Deployed on : " + deployableUnitDescriptor.getDeploymentDate();

                DiscoveredResourceDetails discoveredDu = new DiscoveredResourceDetails(context.getResourceType(),
                        key, name, null, description, null, null);
                discoveredDu.getPluginConfiguration().put(new PropertySimple("url", deployableUnitID.getURL()));

                discoveredDUs.add(discoveredDu);
            }
        } finally {
            try {
                mbeanUtils.logout();
            } catch (LoginException e) {
                if (log.isDebugEnabled()) {
                    log.debug("Failed to logout from secured JMX", e);
                }
            }
        }

        if (log.isInfoEnabled()) {
            log.info("Discovered " + discoveredDUs.size() + " JAIN SLEE Deployable Unit Components.");
        }

        return discoveredDUs;
    }
}