Servers.java

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package com.sun.enterprise.config.serverbeans;

import org.glassfish.api.I18n;
import org.glassfish.api.admin.RuntimeType;
import org.glassfish.config.support.Create;
import org.glassfish.config.support.Delete;
import org.glassfish.config.support.TypeAndNameResolver;
import org.glassfish.config.support.TypeResolver;
import org.jvnet.hk2.config.ConfigBeanProxy;
import org.jvnet.hk2.config.Configured;
import org.jvnet.hk2.config.Element;
import org.jvnet.hk2.config.DuckTyped;

import java.util.List;
import java.util.ArrayList;

/**
 * List of configured servers.
 */
@Configured
public interface Servers extends ConfigBeanProxy  {

    /**
     * Return the list of currently configured server. Servers can
     * be added or removed by using the returned {@link java.util.List}
     * instance
     * 
     * @return the list of configured {@link Server}
     */
    @Element
    // example below on how to annotate a CRUD command with cluster specific data.
    @Create(value="_register-instance", resolver= TypeResolver.class, decorator= Server.CreateDecorator.class,
        cluster=@org.glassfish.api.admin.ExecuteOn(value = RuntimeType.DAS),
        i18n=@I18n("_register.instance.command"))
    @Delete(value="_unregister-instance", resolver= TypeAndNameResolver.class,
            decorator=Server.DeleteDecorator.class,
            cluster=@org.glassfish.api.admin.ExecuteOn(value = {RuntimeType.DAS,RuntimeType.INSTANCE}),
            i18n=@I18n("_unregister.instance.command"))    
    public List<Server> getServer();

    /**
     * Return the server with the given name, or null if no such server exists.
     *
     * @param   name    the name of the server
     * @return          the Server object, or null if no such server
     */
    @DuckTyped
    public Server getServer(String name);

    /**
     * Return the list of Servers that reference a Node
     *
     * @param   node    Node to get servers that reference
     * @return          List of Server objects that reference the passed node.
     *                  List will be of length 0 if no servers reference node.
     */
    @DuckTyped
    public List<Server> getServersOnNode(Node node);

    class Duck {
        public static Server getServer(Servers instance, String name) {
            for (Server server : instance.getServer()) {
                if (server.getName().equals(name)) {
                    return server;
                }
            }
            return null;
        }

        public static List<Server> getServersOnNode(Servers servers, Node node) {
            List<Server> serverList = servers.getServer();
            List<Server> serverListOnNode = new ArrayList<Server>();
            Server instance = null;
            String nodeName = node.getName();
            if (serverList.size() > 0) {
                for (Server server: serverList){
                    if (nodeName.equals(server.getNodeRef())){
                        serverListOnNode.add(server);
                    }
                }
            }
            return serverListOnNode;
        }

    }
}