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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2011-2012 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:
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 *
 * Modifications:
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package org.glassfish.paas.lbplugin.cli;

import java.util.logging.Level;
import org.glassfish.api.Param;
import org.glassfish.api.admin.AdminCommandContext;
import org.glassfish.paas.lbplugin.LBServiceUtil;
import org.glassfish.paas.lbplugin.logger.LBPluginLogger;
import org.glassfish.paas.orchestrator.provisioning.cli.ServiceType;
import org.glassfish.virtualization.spi.VirtualCluster;
import org.glassfish.virtualization.runtime.VirtualClusters;
import org.glassfish.virtualization.spi.VirtException;
import org.glassfish.virtualization.spi.VirtualMachine;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.annotations.Scoped;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.PerLookup;

/**
 *
 * @author kshitiz
 */
@Service
@Scoped(PerLookup.class)
public class BaseLBService {

    @Param(name = "servicename", primary = true)
    String serviceName;
    @Param(name = "appname", optional = true)
    String appName;
    @Inject
    LBServiceUtil lbServiceUtil;

    @Param(name="_vmid", optional=true)
    private String _vmId;

    // TODO :: remove dependency on VirtualCluster(s).
    @Inject(optional = true) // // made it optional for non-virtual scenario to work
    VirtualClusters virtualClusters;
    
    @Param(name="virtualcluster", optional=true)
    String virtualClusterName;

    VirtualCluster virtualCluster;
    VirtualMachine virtualMachine;

    public void execute(AdminCommandContext context) {
    }
    
    void retrieveVirtualMachine() throws VirtException {
        if (virtualClusters != null && serviceName != null && virtualClusterName != null) {
            virtualCluster = virtualClusters.byName(virtualClusterName);
            String vmId = null;
            if(_vmId != null){
                vmId = _vmId;
            }else{
                vmId = lbServiceUtil.getInstanceID(
                    serviceName, appName);
            }

            if (vmId != null) {
                LBPluginLogger.getLogger().log(Level.INFO,"Found VirtualMachine for load-balancer with id : " + vmId);
                virtualMachine = virtualCluster.vmByName(vmId);
                // TODO :: IMS should give differnt way to get hold of VM using the vmId
                return;
            }
            LBPluginLogger.getLogger().log(Level.INFO,"Unable to find VirtualMachine for load-balancer with vmId : " + vmId);
        } else {
            LBPluginLogger.getLogger().log(Level.INFO,"Unable to find VirtualMachine for load-balancer as virtualCluters or serviceName is null");
        }
    }

}