/src/mpv5/webshopinterface/WSIManager.java

/*
*  This file is part of YaBS.
*
*      YaBS is free software: you can redistribute it and/or modify
*      it under the terms of the GNU General Public License as published by
*      the Free Software Foundation, either version 3 of the License, or
*      (at your option) any later version.
*
*      YaBS 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 YaBS.  If not, see <http://www.gnu.org/licenses/>.
 */
package mpv5.webshopinterface;

//~--- non-JDK imports --------------------------------------------------------

import mpv5.db.common.Context;
import mpv5.db.common.DatabaseObject;
import mpv5.db.common.NodataFoundException;
import mpv5.db.objects.WebShop;

import mpv5.logging.Log;

import mpv5.ui.dialogs.Popup;

import mpv5.webshopinterface.wsdjobs.addContactJob;
import mpv5.webshopinterface.wsdjobs.newContactsJob;
import mpv5.webshopinterface.wsdjobs.newOrdersJob;
import mpv5.webshopinterface.wsdjobs.newSystemMessages;
import mpv5.webshopinterface.wsdjobs.updatedContactsJob;
import mpv5.webshopinterface.wsdjobs.updatedOrdersJob;

//~--- JDK imports ------------------------------------------------------------

import java.net.URL;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.Vector;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.naming.OperationNotSupportedException;

/**
 * Manages the web shops and related tasks
 */
public class WSIManager {
    private static WSIManager          instance;
    private ArrayList<WebShop>         shops       = new ArrayList<WebShop>();
    private HashMap<WebShop, WSDaemon> shopDeamons = new HashMap<WebShop, WSDaemon>();

    private WSIManager() {
        reset();
    }

    /**
     * Get the one and only WSI Manager instance
     * @return
     */
    public static WSIManager instanceOf() {
        return (instance == null)
               ? instance = new WSIManager()
               : instance;
    }

    /**
     * Starts the WSI Manager
     */
    public void start() {
        Log.Debug(this, "Initiating WebShop clients..");

        for (int i = 0; i < shops.size(); i++) {
            WebShop webShop = shops.get(i);

            try {
                WSDaemon d = new WSDaemon(webShop);

                d.addJob(new newContactsJob(d));
                d.addJob(new newOrdersJob(d));
                d.addJob(new newSystemMessages(d));
                d.addJob(new updatedContactsJob(d));
                d.addJob(new updatedOrdersJob(d));
                d.addJob(new addContactJob(d));
                d.start();
                shopDeamons.put(webShop, d);
                Log.Debug(this, "WebShop client: " + d + " started.");
            } catch (Exception ex) {
                Log.Debug(ex);
            }
        }

        Log.Debug(this, "Done with initiating WebShop clients.");
    }

    /**
     * @return the shops
     */
    public ArrayList<WebShop> getShops() {
        return shops;
    }

    /**
     * Creates objects from the given map/list. Assumes data in the format [int id, String key, String value].
     * @param <T>
     * @param data
     * @param template
     * @return
     */
    @SuppressWarnings("unchecked")
    public static <T extends DatabaseObject> List<T> createObjects(Object data, T template) {
        Vector<T>      list    = new Vector<T>();
        List<String[]> rawlist = new Vector<String[]>();

        if (data instanceof HashMap) {
            HashMap             m = (HashMap) data;
            Collection<HashMap> d = m.values();

            for (Iterator<HashMap> it = d.iterator(); it.hasNext(); ) {
                HashMap hashMap = it.next();

                rawlist.add(new String[] { String.valueOf(hashMap.get("id")), String.valueOf(hashMap.get("key")),
                                           String.valueOf(hashMap.get("value")) });
            }
        } else    // else if (data instanceof List) {

        // List n = (List) data;
        // for (int i = 0; i < n.size(); i++) {
        // rawlist.add(new String[]{String.valueOf(((Object[]) n.get(i))[0]), String.valueOf(((Object[]) n.get(i))[1]), String.valueOf(((Object[]) n.get(i))[2])});
        // }
        // } else
        {
            throw new IllegalArgumentException("Only HashMap is supported here! You provided: " + data.getClass());
        }

        HashMap<String, T> result = new HashMap<String, T>();

        for (int i = 0; i < rawlist.size(); i++) {
            String[] strings = rawlist.get(i);
            String   id      = strings[0];
            String   key     = strings[1];
            String   value   = strings[2];

            if (!result.containsKey(id)) {
                result.put(id, (T) DatabaseObject.getObject(template.getContext()));
            }

            try {
                result.get(id).parse(key, value);
            } catch (Exception ex) {
                Log.Debug(ex);
            }
        }

        list.addAll(result.values());
        Log.Debug(WSIManager.class, "Found sets: " + list.size());

        return list;
    }

    /**
     * Reset. Call start() afterwards.
     */
    public void reset() {
        try {
            shops.clear();

            Set<WebShop> k = shopDeamons.keySet();

            for (Iterator i = k.iterator(); i.hasNext(); ) {
                shopDeamons.get((WebShop) i.next()).kill();
            }

            shops.addAll(DatabaseObject.toObjectList(DatabaseObject.getObjects(Context.getWebShop()), new WebShop()));
        } catch (NodataFoundException ex) {
            Log.Debug(this, ex.getMessage());
        }
    }
}


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