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/**************************************************************************
* AssignItemToSlot
*
* $Workfile$
* $Revision: 1.8 $
* $Date: 2004/10/21 08:02:19 $
*
* Copyright (C) 2001 CERN - European Organization for Nuclear Research
* All rights reserved.
**************************************************************************/
package com.c2kernel.lifecycle.instance.predefined;
import com.c2kernel.collection.Collection;
import com.c2kernel.collection.CollectionMember;
import com.c2kernel.collection.MembershipException;
import com.c2kernel.common.InvalidDataException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.persistency.ClusterStorageException;
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 RemoveSlotFromCollection extends PredefinedStep
{
/**************************************************************************
* Constructor for Castor
**************************************************************************/
public RemoveSlotFromCollection()
{
super();
}
/**
* Params:
* 0 - collection name
* 1 - slot number OR if null:
* 2 - target entity key
*/
@Override
protected String runActivityLogic(AgentPath agent, int itemSysKey,
int transitionID, String requestData) throws InvalidDataException {
String collName;
int slotNo;
int entityKey = -1;
Collection<? extends CollectionMember> coll;
Logger.msg(1, "RemoveSlotFromCollection::request() - Starting.");
// extract parameters
try {
String[] params = getDataList(requestData);
collName = params[0];
slotNo = params[1].length()>0?Integer.parseInt(params[1]):-1;
if (params.length>2) entityKey = params[2].length()>0?Integer.parseInt(params[2]):-1;
} catch (Exception e) {
throw new InvalidDataException("Invalid parameters", "");
}
if (slotNo == -1 && entityKey == -1)
throw new InvalidDataException("Must give either slot number or entity key", "");
// load collection
try {
coll = (Collection<? extends CollectionMember>)Gateway.getStorage().get(itemSysKey, ClusterStorage.COLLECTION+"/"+collName, null);
} catch (ObjectNotFoundException ex) {
throw new InvalidDataException("Collection '"+collName+"' not found in this Item", "");
} catch (ClusterStorageException ex) {
Logger.error(ex);
throw new InvalidDataException("Error loading collection '\"+collName+\"': "+ex.getMessage(), "");
}
if (slotNo == -1) { // find slot from entity key
for (CollectionMember member : coll.getMembers().list) {
if (member.getEntityKey() == entityKey) {
slotNo = member.getID();
break;
}
}
}
if (slotNo == -1) {
throw new InvalidDataException("No match", "");
}
// Remove the slot
try {
coll.removeMember(slotNo);
} catch (MembershipException e) {
throw new InvalidDataException(e.getMessage(), "");
}
// Store the collection
try {
Gateway.getStorage().put(itemSysKey, coll, null);
} catch (ClusterStorageException e) {
Logger.error(e);
throw new InvalidDataException("Error storing collection", "");
}
Logger.msg(1, "RemoveSlotFromCollection::request() - DONE.");
return requestData;
}
}
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