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/**
 * 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.lifecycle.instance.predefined.server;

import java.util.Stack;

import com.c2kernel.common.CannotManageException;
import com.c2kernel.common.InvalidDataException;
import com.c2kernel.common.ObjectAlreadyExistsException;
import com.c2kernel.common.ObjectCannotBeUpdated;
import com.c2kernel.lifecycle.instance.predefined.PredefinedStep;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.lookup.DomainPath;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.Logger;

public class AddDomainContext extends PredefinedStep {
	
	public AddDomainContext() {
        super();
	}
	
	@Override
	protected String runActivityLogic(AgentPath agent, ItemPath item,
			int transitionID, String requestData) throws InvalidDataException {
	
		Logger.msg(1, "AddDomainContext::request() - Starting.");
		
		DomainPath pathToAdd = new DomainPath(getDataList(requestData)[0]);
		if (pathToAdd.exists())
			throw new InvalidDataException("Context "+pathToAdd+" already exists", "");
		// collect parent paths if they don't exist
		Stack<DomainPath> pathsToAdd = new Stack<DomainPath>();
		while(pathToAdd!= null && !pathToAdd.exists()) { 
			pathsToAdd.push(pathToAdd);
			pathToAdd = pathToAdd.getParent();
		}
		while(!pathsToAdd.empty()) {
			pathToAdd = pathsToAdd.pop();
			try {
				Gateway.getLookupManager().add(pathToAdd);
			} catch (ObjectAlreadyExistsException e) {
				Logger.error("Context "+pathToAdd+" inconsistently exists.");
			} catch (ObjectCannotBeUpdated e) {
				Logger.error(e);
				throw new InvalidDataException("Exception adding path "+pathToAdd+": "+e.getMessage(), "");
			} catch (CannotManageException e) {
				throw new InvalidDataException("Cannot alter directory in a non-server process", "");
			}
		}
		return requestData;
	}
}