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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2012 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:
 * 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.
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 */

package com.sun.enterprise.v3.admin;

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

import javax.inject.Inject;
import javax.management.InstanceNotFoundException;

import org.glassfish.api.StartupRunLevel;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.config.support.PropertyResolver;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.runlevel.RunLevel;
import org.glassfish.internal.api.Globals;
import org.glassfish.internal.api.Target;
import org.jvnet.hk2.annotations.Service;

import com.sun.enterprise.config.serverbeans.Domain;
import com.sun.enterprise.config.serverbeans.Server;

@Service
@RunLevel(mode=RunLevel.RUNLEVEL_MODE_NON_VALIDATING, value=StartupRunLevel.VAL)
public class MbeanService {

    @Inject
    private Domain domain;

    @Inject
    private Target tgt;

    private static ServiceLocator habitat = Globals.getDefaultHabitat();

    @Inject
    private ServerEnvironment env;


    public static MbeanService getInstance() {
        if (habitat == null)
            return null;
        return habitat.getService(MbeanService.class);
    }

    public String getHost(String instance) throws InstanceNotFoundException {
        Server s = domain.getServerNamed(instance);
        if (s == null)
            throw new InstanceNotFoundException();
        return s.getAdminHost();
    }

    public String getJMXPort(String instance) throws InstanceNotFoundException {
        Server s = domain.getServerNamed(instance);
        if (s == null)
            throw new InstanceNotFoundException();
        return new PropertyResolver(domain, instance).getPropertyValue("JMX_SYSTEM_CONNECTOR_PORT");
    }

    public boolean isDas() {
        return tgt.isThisDAS();
    }

    public boolean isValidServer(String name) {
        Server s = null;
        try {
            s = domain.getServerNamed(name);
        } catch (Throwable t) {
            return false;
        }
        return (s == null) ? false : true;
    }

    public List getAllInstances() {
        return convertList(tgt.getAllInstances());
    }

    public List getInstances(String name) {
        return convertList(tgt.getInstances(name));
    }

    private List convertList(List servers) {
        List serverStrings = new ArrayList();
        for (Server svr : servers)
            serverStrings.add(svr.getName());
        return serverStrings;
    }

    public boolean isInstance(String name) {
        return env.getInstanceName().equals(name);
    }

    /**
     * Returns if the SystemJMXConnector is secure or not
     *
     * @param instance
     * @return
     */
    public boolean isSecureJMX(String instance) {
        String isSecure = "false";
        if (domain.getServerNamed(instance) != null) {
            if (domain.getServerNamed(instance).getConfig().getAdminService().getSystemJmxConnector() != null) {
                isSecure = domain.getServerNamed(instance).getConfig().getAdminService().getSystemJmxConnector().getSecurityEnabled();
            }
        }
        return Boolean.parseBoolean(isSecure);

    }
}