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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.common.InvalidData;
import com.c2kernel.common.ObjectNotFound;
import com.c2kernel.common.PersistencyException;
import com.c2kernel.events.Event;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.persistency.outcome.Viewpoint;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.Logger;
public class WriteViewpoint extends PredefinedStep {
public WriteViewpoint() {
super();
}
@Override
protected String runActivityLogic(AgentPath agent, ItemPath item,
int transitionID, String requestData) throws InvalidData, ObjectNotFound, PersistencyException {
String schemaName;
String viewName;
int evId;
String[] params = getDataList(requestData);
if (Logger.doLog(3)) Logger.msg(3, "WriteViewpoint: called by "+agent+" on "+item+" with parameters "+Arrays.toString(params));
// outcometype, name and evId. Event and Outcome should be checked so schema version should be discovered.
if (params.length != 3)
throw new InvalidData("WriteViewpoint: Invalid parameters "+Arrays.toString(params));
schemaName = params[0];
viewName = params[1];
try {
evId = Integer.parseInt(params[2]);
} catch (NumberFormatException ex) {
throw new InvalidData("WriteViewpoint: Parameter 3 (EventId) must be an integer");
}
// Find event
Event ev;
try {
ev = (Event)Gateway.getStorage().get(item, ClusterStorage.HISTORY+"/"+evId, null);
} catch (PersistencyException e) {
Logger.error(e);
throw new PersistencyException("WriteViewpoint: Could not load event "+evId);
}
// Write new viewpoint
Viewpoint newView = new Viewpoint(item, schemaName, viewName, ev.getSchemaVersion(), evId);
try {
Gateway.getStorage().put(item, newView, null);
} catch (PersistencyException e) {
Logger.error(e);
throw new PersistencyException("WriteViewpoint: Could not store new viewpoint");
}
return requestData;
}
}
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