com.aurel.track.item.action.ItemActionUtil.java Source code

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Here is the source code for com.aurel.track.item.action.ItemActionUtil.java

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/**
 * Genji Scrum Tool and Issue Tracker
 * Copyright (C) 2015 Steinbeis GmbH & Co. KG Task Management Solutions
    
 * <a href="http://www.trackplus.com">Genji Scrum Tool</a>
 *
 * This program 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.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

/* $Id:$ */

package com.aurel.track.item.action;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.LogManager;

import com.aurel.track.plugin.ItemActionDescription;
import com.aurel.track.plugin.PluginDescriptor;
import com.aurel.track.plugin.PluginManager;

/**
 * An helper class use to obtain the configuration for givenaction
 * @author Adrian Bojani
 *
 */
public class ItemActionUtil {

    private static final Logger LOGGER = LogManager.getLogger(ItemActionUtil.class);

    private static Map cachePlugins;
    //List<IPluginDashboard> a list with all names of plugins
    private static Map descriptors;

    public static void invalidateCache() {
        cachePlugins = null;
        descriptors = null;
    }

    public static ItemActionDescription getDescriptor(String descriptorId) {
        if (descriptors == null) {
            getItemActionPlugins();
        }
        return (ItemActionDescription) descriptors.get(descriptorId);
    }

    public static IPluginItemAction getPlugin(Integer actionID) {
        return getPlugin(getDescriptor(actionID.toString()).getTheClassName());
    }

    public static IPluginItemAction getPlugin(String className) {
        if (cachePlugins == null) {
            cachePlugins = new HashMap();
        }
        IPluginItemAction plugin = (IPluginItemAction) cachePlugins.get(className);
        if (plugin != null) {
            return plugin;
        }
        try {
            plugin = (IPluginItemAction) Class.forName(className).newInstance();
            cachePlugins.put(className, plugin);
            return plugin;
        } catch (InstantiationException e) {
            LOGGER.error(ExceptionUtils.getStackTrace(e));
        } catch (IllegalAccessException e) {
            LOGGER.error(ExceptionUtils.getStackTrace(e));
        } catch (ClassNotFoundException e) {
            LOGGER.error(ExceptionUtils.getStackTrace(e));
        }
        return null;//plugin class problem
    }

    /**
     * Find all the dashboard plugins
     *
     * @return
     */
    public static List getItemActionPlugins() {
        List lst = PluginManager.getInstance().getItemActionDescriptors();
        descriptors = new HashMap();
        for (int i = 0; i < lst.size(); i++) {
            PluginDescriptor o = (PluginDescriptor) lst.get(i);
            descriptors.put(o.getId(), o);
        }
        return lst;
    }
}