/**
 * This file is part of the CRISTAL-iSE kernel.
 * Copyright (c) 2001-2014 The CRISTAL Consortium. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 3 of the License, or (at
 * your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * http://www.fsf.org/licensing/licenses/lgpl.html
 */
package com.c2kernel.entity.agent;

import com.c2kernel.common.CannotManage;
import com.c2kernel.common.ObjectCannotBeUpdated;
import com.c2kernel.common.ObjectNotFound;
import com.c2kernel.common.SystemKey;
import com.c2kernel.entity.AgentOperations;
import com.c2kernel.entity.ItemImplementation;
import com.c2kernel.lifecycle.instance.predefined.PredefinedStepContainer;
import com.c2kernel.lifecycle.instance.predefined.agent.AgentPredefinedStepContainer;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.lookup.RolePath;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.Logger;

public class AgentImplementation extends ItemImplementation implements
		AgentOperations {

	private JobList currentJobs;
	private final AgentPath mAgentPath;
	
	public AgentImplementation(AgentPath path) {
		super(path);
		mAgentPath = path;
	}

	   /**
     * Called by an activity when it reckons we need to update our joblist for it
     */

    @Override
	public synchronized void refreshJobList(SystemKey sysKey, String stepPath, String newJobs) {
        try {
        	ItemPath itemPath = new ItemPath(sysKey);
            JobArrayList newJobList = (JobArrayList)Gateway.getMarshaller().unmarshall(newJobs);

            // get our joblist
            if (currentJobs == null)
                currentJobs = new JobList( itemPath, null);

            // remove old jobs for this item
            currentJobs.removeJobsForStep( itemPath, stepPath );

            // merge new jobs in
            for (Object name : newJobList.list) {
                Job newJob = (Job)name;
                Logger.msg(6, "Adding job for "+newJob.getItemPath()+"/"+newJob.getStepPath()+":"+newJob.getTransition().getId());
                currentJobs.addJob(newJob);
            }

        } catch (Throwable ex) {
            Logger.error("Could not refresh job list.");
            Logger.error(ex);
        }

    }

    @Override
	public void addRole(String roleName) throws CannotManage, ObjectNotFound {
        RolePath newRole = Gateway.getLookup().getRolePath(roleName);
        try {
            Gateway.getLookupManager().addRole(mAgentPath, newRole);
        } catch (ObjectCannotBeUpdated ex) {
            throw new CannotManage("Could not update role");
        }
    }

    @Override
	public void removeRole(String roleName) throws CannotManage, ObjectNotFound {
        RolePath rolePath = Gateway.getLookup().getRolePath(roleName);
        try {
        	Gateway.getLookupManager().removeRole(mAgentPath, rolePath);
        } catch (ObjectCannotBeUpdated ex) {
            throw new CannotManage("Could not update role");
        }
    }

	@Override
	protected PredefinedStepContainer getNewPredefStepContainer() {
		return new AgentPredefinedStepContainer();
	}
}