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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;
import java.util.Arrays;
import com.c2kernel.collection.Aggregation;
import com.c2kernel.collection.AggregationMember;
import com.c2kernel.common.InvalidCollectionModification;
import com.c2kernel.common.InvalidData;
import com.c2kernel.common.ObjectCannotBeUpdated;
import com.c2kernel.common.ObjectNotFound;
import com.c2kernel.common.PersistencyException;
import com.c2kernel.entity.C2KLocalObject;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.Logger;
/**************************************************************************
*
* @author $Author: abranson $ $Date: 2004/10/21 08:02:19 $
* @version $Revision: 1.8 $
**************************************************************************/
public class AssignItemToSlot extends PredefinedStep
{
/**************************************************************************
* Constructor for Castor
**************************************************************************/
public AssignItemToSlot()
{
super();
}
/**
* Params:
* 0 - collection name
* 1 - slot number
* 2 - target entity key
* @throws ObjectNotFound
* @throws PersistencyException
* @throws ObjectCannotBeUpdated
* @throws InvalidCollectionModification
*/
@Override
protected String runActivityLogic(AgentPath agent, ItemPath item,
int transitionID, String requestData) throws InvalidData, ObjectNotFound, PersistencyException, ObjectCannotBeUpdated, InvalidCollectionModification {
String collName;
int slotNo;
ItemPath childItem;
Aggregation agg;
// extract parameters
String[] params = getDataList(requestData);
if (Logger.doLog(3)) Logger.msg(3, "AssignItemToSlot: called by "+agent+" on "+item+" with parameters "+Arrays.toString(params));
try {
collName = params[0];
slotNo = Integer.parseInt(params[1]);
childItem = new ItemPath(params[2]);
} catch (Exception e) {
throw new InvalidData("AssignItemToSlot: Invalid parameters "+Arrays.toString(params));
}
// load collection
C2KLocalObject collObj;
try {
collObj = Gateway.getStorage().get(item, ClusterStorage.COLLECTION+"/"+collName+"/last", null);
} catch (PersistencyException ex) {
Logger.error(ex);
throw new PersistencyException("AssignItemToSlot: Error loading collection '\"+collName+\"': "+ex.getMessage());
}
if (!(collObj instanceof Aggregation)) throw new InvalidData("AssignItemToSlot: AssignItemToSlot operates on Aggregation collections only.");
agg = (Aggregation)collObj;
// find member and assign entity
boolean stored = false;
for (AggregationMember member : agg.getMembers().list) {
if (member.getID() == slotNo) {
if (member.getItemPath() != null)
throw new ObjectCannotBeUpdated("AssignItemToSlot: Member slot "+slotNo+" not empty");
member.assignItem(childItem);
stored = true;
break;
}
}
if (!stored) {
throw new ObjectNotFound("AssignItemToSlot: Member slot "+slotNo+" not found.");
}
try {
Gateway.getStorage().put(item, agg, null);
} catch (PersistencyException e) {
throw new PersistencyException("AssignItemToSlot: Error saving collection '"+collName+"': "+e.getMessage());
}
return requestData;
}
}
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