Glassfish example source code file (NodeAgentConfigUpgrade.java)

This example Glassfish source code file (NodeAgentConfigUpgrade.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

bean, javabean, list, list, log, logging, node, nodes, property, propertyvetoexception, propertyvetoexception, runtimeexception, string, string, transaction, transactionfailure, transactionfailure, util, v3

The Glassfish NodeAgentConfigUpgrade.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.enterprise.v3.admin.cluster;

import java.beans.PropertyVetoException;
import java.util.*;
import java.util.logging.*;

import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.config.serverbeans.Servers;
import com.sun.enterprise.config.serverbeans.Node;
import com.sun.enterprise.config.serverbeans.Nodes;
import com.sun.enterprise.config.serverbeans.NodeAgent;
import com.sun.enterprise.config.serverbeans.NodeAgents;
import com.sun.enterprise.config.serverbeans.JmxConnector;
import org.glassfish.api.admin.config.ConfigurationUpgrade;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.annotations.Scoped;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.PerLookup;
import org.jvnet.hk2.component.PostConstruct;
import org.jvnet.hk2.config.types.Property;
import org.jvnet.hk2.config.ConfigSupport;
import org.jvnet.hk2.config.SingleConfigCode;
import org.jvnet.hk2.config.TransactionFailure;
import org.jvnet.hk2.annotations.*;
import org.jvnet.hk2.component.*;
import org.jvnet.hk2.config.TransactionFailure;
import org.jvnet.hk2.config.*;


/**
 * Change the node-agent element to use V3 mechanism 
 * @author Carla Mott
 */

@Service
@Scoped(PerLookup.class)
public class NodeAgentConfigUpgrade implements ConfigurationUpgrade, PostConstruct {
    @Inject
    Domain domain;

    @Inject
    Servers servers;

    public void postConstruct() {

        final NodeAgents nodeAgents = domain.getNodeAgents();
        if (nodeAgents == null) {
            createDefaultNodeList();
            return;
        }

        final List<NodeAgent> agList= nodeAgents.getNodeAgent();
        if (agList.size() == 0) {
            createDefaultNodeList();
            return;
        }
        try {
            ConfigSupport.apply(new SingleConfigCode<Domain>() {
                public Object run(Domain d) throws PropertyVetoException, TransactionFailure {

                    Nodes nodes=d.createChild(Nodes.class);
                    Transaction t = Transaction.getTransaction(d);
                    if (t==null)
                        return null;

                    for( NodeAgent na: agList){
                        String host=null;
                        Node node = nodes.createChild(Node.class);

                        node.setName(na.getName());
                        node.setType("CONFIG");
                        JmxConnector jc = na.getJmxConnector();
                        if (jc != null){
                            List<Property> agentProp =jc.getProperty();  //get the properties and see if host name is specified
                            for ( Property p : agentProp)  {
                                String name = p.getName();
                                if (name.equals("client-hostname")) {
                                    node.setNodeHost(p.getValue()); //create the node with a host name
                                    node.setInstallDir("${com.sun.aas.productRoot}");
                                }
                            }
                        }
                        nodes.getNode().add(node);
                    }

                    // Now add the builtin localhost node
                    createDefaultNode(d, nodes);

                    d.setNodes(nodes);

                    List<Server> serverList=servers.getServer();
                    if (serverList.size() <= 0)
                        return null;

                    for (Server s: serverList){
                        s = t.enroll(s);
                        s.setNodeRef(s.getNodeAgentRef());
                        s.setNodeAgentRef(null);
                    }
                    //remove the node-agent element
//                    d.getNodeAgents().getNodeAgent().clear();
                    d.setNodeAgents(null);
                    return null;
                }
        
        }, domain);
        } catch (Exception e) {
            Logger.getAnonymousLogger().log(Level.SEVERE,
                "Failure while upgrading node-agent from V2 to V3", e);
            throw new RuntimeException(e);
        }

    }

    /**
     * If the domain.xml has no node agents, then create the default node list
     * with the localhost node.
     */

    private void createDefaultNodeList() {
        try {
            ConfigSupport.apply(new SingleConfigCode<Domain>() {
                public Object run(Domain d) throws PropertyVetoException, TransactionFailure {

                    Nodes nodes=d.createChild(Nodes.class);
                    Transaction t = Transaction.getTransaction(d);
                    if (t==null)
                        return null;

                    createDefaultNode(d, nodes);
                    d.setNodes(nodes);
                    return null;
                }
        }, domain);
        } catch (Exception e) {
            Logger.getAnonymousLogger().log(Level.SEVERE,
                "Failure while creating default localhost node during V2 to V3 upgrade.", e);
            throw new RuntimeException(e);
        }

    }

    private void createDefaultNode(Domain d, Nodes nodes)
            throws TransactionFailure, PropertyVetoException {
        Property domainProp = d.getProperty("administrative.domain.name");
        String domainName = domainProp.getValue();
        Node node = nodes.createChild(Node.class);
        node.setName("localhost" + "-" + domainName);
        node.setType("CONFIG");
        node.setNodeHost("localhost");
        node.setInstallDir("${com.sun.aas.productRoot}");
        nodes.getNode().add(node);
    }
}