/**
 * NOTE: This copyright does *not* cover user programs that use HQ program
 * services by normal system calls through the application program interfaces
 * provided as part of the Hyperic Plug-in Development Kit or the Hyperic Client
 * Development Kit - this is merely considered normal use of the program, and
 * does *not* fall under the heading of "derived work".
 *
 * Copyright (C) [2009-2010], VMware, Inc. This file is part of HQ.
 *
 * HQ is free software; you can redistribute it and/or modify it under the terms
 * version 2 of the GNU General Public License as published by the Free Software
 * Foundation. This program 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 General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 */
package org.hyperic.hq.plugin.websphere.jmx;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import javax.management.ObjectName;

/**
 * An auto-discovery query for a particular dynamic service deployed within
 * WebSphere
 *
 * @author Jennifer Hickey
 *
 */
public class DynamicServiceQuery extends WebSphereQuery {

    private String[] attributeNames;
    private Map keyValues = new LinkedHashMap();
    private String type;

    /**
     *
     */
    public DynamicServiceQuery() {
    }

    @Override
    public WebSphereQuery cloneInstance() {
        throw new UnsupportedOperationException();
    }

    @Override
    public String[] getAttributeNames() {
        if (this.attributeNames == null) {
            return super.getAttributeNames();
        }
        return attributeNames;
    }

    @Override
    public String getFullName() {
        StringBuffer name = new StringBuffer();
        //ObjectName properties will likely overlap with parent query names somewhat so need to put in Set to make unique.  Parent name order should win
        Set names = new LinkedHashSet();
        List parentNames = new ArrayList();
        WebSphereQuery query = this;
        while ((query = query.getParent()) != null) {
            parentNames.add(query.getName());
        }
        for (int i = parentNames.size() - 1; i >= 0; i--) {
            names.add(parentNames.get(i));
        }

        for (Iterator iterator = keyValues.values().iterator(); iterator.hasNext();) {
            names.add(iterator.next());
        }
        names.add(getName());
        for (Iterator iterator = names.iterator(); iterator.hasNext();) {
            name.append((String) iterator.next()).append(" ");
        }
        name.deleteCharAt(name.length() - 1);
        return name.toString();
    }

    @Override
    public Properties getProperties() {
        Properties props = new Properties();
        props.put("name", getName());
        for (Iterator iterator = keyValues.entrySet().iterator(); iterator.hasNext();) {
            Map.Entry keyEntry = (Map.Entry) iterator.next();
            props.put(keyEntry.getKey(), keyEntry.getValue());
        }
        return props;
    }

    @Override
    public String getResourceType() {
        return this.type;
    }

    @Override
    public String getScope() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean hasControl() {
        return true;
    }

    /**
     *
     * @param attributeNames The names of attributes to retreive from the MBean.
     * Should match any attribute defined as custom properties of the service
     */
    public void setAttributeNames(String[] attributeNames) {
        this.attributeNames = attributeNames;
    }

    /**
     * Overrides the setObjectName method of parent in order to set the key
     * properties of this service
     */
    @Override
    public void setObjectName(ObjectName name) {
        super.setObjectName(name);
        String alphabeticalkeyProps = name.getCanonicalKeyPropertyListString();
        final String[] keyProps = alphabeticalkeyProps.split(",");
        for (int i = 0; i < keyProps.length; i++) {
            final String[] keyProp = keyProps[i].split("=");
            //remove name, type, and subtype.  We are assuming type and subtype were used to create the service type name (setType) and name was set as (setName)
            if (!("type".equals(keyProp[0])) && !("name".equals(keyProp[0])) && !("subtype".equals(keyProp[0]))) {
                keyValues.put(keyProp[0], keyProp[1]);
            }
        }
    }

    /**
     *
     * @param type The name of the service type as defined in metadata, example
     * "Spring Bean Factory"
     */
    public void setType(String type) {
        this.type = type;
    }
}