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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.Dependency;
import com.c2kernel.collection.MembershipException;
import com.c2kernel.common.InvalidDataException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.entity.C2KLocalObject;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.persistency.ClusterStorageException;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.CastorHashMap;
import com.c2kernel.utils.Logger;
/**************************************************************************
*
* @author $Author: abranson $ $Date: 2004/10/21 08:02:19 $
* @version $Revision: 1.8 $
**************************************************************************/
public class AddMemberToCollection extends PredefinedStep
{
/**************************************************************************
* Constructor for Castor
**************************************************************************/
public AddMemberToCollection()
{
super();
}
/**
* Generates a new slot in a Dependency for the given item
*
* Params:
* 0 - collection name
* 1 - target entity key
*/
@Override
protected String runActivityLogic(AgentPath agent, ItemPath item,
int transitionID, String requestData) throws InvalidDataException {
String collName;
ItemPath newChild;
Dependency dep;
CastorHashMap props = null;
// extract parameters
String[] params = getDataList(requestData);
if (Logger.doLog(3)) Logger.msg(3, "AddMemberToCollection: called by "+agent+" on "+item+" with parameters "+Arrays.toString(params));
try {
collName = params[0];
newChild = new ItemPath(params[1]);
if (params.length > 2)
props = (CastorHashMap)Gateway.getMarshaller().unmarshall(params[2]);
} catch (Exception e) {
throw new InvalidDataException("AddMemberToCollection: Invalid parameters "+Arrays.toString(params), "");
}
// load collection
C2KLocalObject collObj;
try {
collObj = Gateway.getStorage().get(item, ClusterStorage.COLLECTION+"/"+collName+"/last", null);
} catch (ObjectNotFoundException ex) {
throw new InvalidDataException("AddMemberToCollection: Collection '"+collName+"' not found in this Item", "");
} catch (ClusterStorageException ex) {
Logger.error(ex);
throw new InvalidDataException("AddMemberToCollection: Error loading collection '\"+collName+\"': "+ex.getMessage(), "");
}
if (!(collObj instanceof Dependency)) throw new InvalidDataException("AddMemberToCollection: AddMemberToCollection operates on Dependency collections only.", "");
dep = (Dependency)collObj;
// find member and assign entity
try {
if (props == null)
dep.addMember(newChild);
else
dep.addMember(newChild, props, null);
} catch (MembershipException e) {
throw new InvalidDataException("AddMemberToCollection: Item "+newChild+" is the wrong type for this collection", "");
}
try {
Gateway.getStorage().put(newChild, dep, null);
} catch (ClusterStorageException e) {
throw unknownException(e);
}
return requestData;
}
}
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