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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 org.cristalise.kernel.lifecycle.instance;
import java.util.HashMap;
import org.cristalise.kernel.common.AccessRightsException;
import org.cristalise.kernel.common.InvalidDataException;
import org.cristalise.kernel.common.InvalidTransitionException;
import org.cristalise.kernel.common.ObjectAlreadyExistsException;
import org.cristalise.kernel.common.ObjectCannotBeUpdated;
import org.cristalise.kernel.common.ObjectNotFoundException;
import org.cristalise.kernel.common.PersistencyException;
import org.cristalise.kernel.graph.model.GraphableVertex;
import org.cristalise.kernel.lifecycle.routingHelpers.ViewpointDataHelper;
import org.cristalise.kernel.lookup.AgentPath;
import org.cristalise.kernel.lookup.ItemPath;
import org.cristalise.kernel.persistency.ClusterStorage;
import org.cristalise.kernel.process.Gateway;
import org.cristalise.kernel.scripting.Script;
import org.cristalise.kernel.scripting.ScriptingEngineException;
import org.cristalise.kernel.utils.KeyValuePair;
import org.cristalise.kernel.utils.Logger;
/**
* @version $Revision: 1.38 $ $Date: 2005/09/07 13:46:31 $
* @author $Author: abranson $
*/
public abstract class WfVertex extends GraphableVertex
{
/**sets the activity available to be executed on start of Workflow or composite activity (when it is the first one of the
* (sub)process
* @throws InvalidDataException
* @throws ObjectAlreadyExistsException
* @throws ObjectNotFoundException
* @throws AccessRightsException
* @throws InvalidTransitionException
* @throws PersistencyException
* @throws ObjectCannotBeUpdated */
public abstract void runFirst(AgentPath agent, ItemPath itemPath) throws InvalidDataException;
/**
* @see java.lang.Object#Object()
*/
public WfVertex()
{
super();
setIsLayoutable(true);
setIsComposite(false);
}
/**
* Method runNext.
* @throws InvalidDataException
* @throws ObjectNotFoundException
* @throws AccessRightsException
* @throws InvalidTransitionException
* @throws PersistencyException
* @throws ObjectAlreadyExistsException
* @throws ObjectCannotBeUpdated
*/
public void runNext(AgentPath agent, ItemPath itemPath) throws InvalidDataException
{
try
{
((CompositeActivity)getParent()).request(agent, itemPath, CompositeActivity.COMPLETE, null);
}
catch (Exception e)
{
//Logger.error(e);
}
}
/**
* Method reinit.
* @param idLoop
* @throws InvalidDataException
* @throws ObjectNotFoundException
*/
public abstract void reinit( int idLoop ) throws InvalidDataException;
/**
* Method verify.
* @return boolean
*/
public abstract boolean verify();
/**
* Method getErrors.
* @return String
*/
public abstract String getErrors();
/**
* Method run.
* @throws InvalidDataException
* @throws ObjectAlreadyExistsException
* @throws ObjectNotFoundException
* @throws AccessRightsException
* @throws InvalidTransitionException
* @throws PersistencyException
* @throws ObjectCannotBeUpdated
*/
public abstract void run(AgentPath agent, ItemPath itemPath) throws InvalidDataException;
/**
* Method loop.
* @return boolean
*/
public abstract boolean loop();
/**
* Method addNext.
* @param vertex
*/
public abstract Next addNext(WfVertex vertex);
protected Object evaluateScript(String scriptName, Integer scriptVersion, ItemPath itemPath) throws ScriptingEngineException
{
try
{
Script script = getScript(scriptName, scriptVersion);
KeyValuePair[] k = getProperties().getKeyValuePairs();
HashMap<?, ?> requiredInput = script.getAllInputParams();
for (KeyValuePair element : k) {
if (requiredInput.containsKey(element.getKey()))
{
String value = element.getStringValue();
Object inputParam = value;
if (value.startsWith("viewpoint//"))
{
value = value.substring(11);
if (value.startsWith("."))
value = itemPath.getUUID() + value.substring(1);
try {
inputParam = ViewpointDataHelper.get(value)[0];
} catch (ArrayIndexOutOfBoundsException ex) {
throw new InvalidDataException("Could not retrieve data from viewpoint: "+value);
}
}
if (value.startsWith("property//"))
{
value = value.substring(10);
try {
inputParam = Gateway.getStorage().get(itemPath, ClusterStorage.PROPERTY+"/"+value, null);
} catch (ObjectNotFoundException ex) {
inputParam = null;
}
}
Logger.msg(5, "Split.evaluateScript() - Setting param " + element.getKey() + " to " + inputParam);
script.setInputParamValue(element.getKey(), inputParam);
}
}
//TODO: is this right?
if (requiredInput.containsKey("item")) {
script.setInputParamValue("item", Gateway.getProxyManager().getProxy(itemPath));
}
if (requiredInput.containsKey("agent")) {
AgentPath systemAgent = Gateway.getLookup().getAgentPath("system");
script.setInputParamValue("agent", Gateway.getProxyManager().getProxy(systemAgent));
}
Object retVal = script.execute();
Logger.msg(2, "Split.evaluateScript() - Script returned "+retVal);
if (retVal == null) retVal = "";
return retVal;
}
catch (Exception e)
{
Logger.msg(1, "Split.evaluateScript() - Error: Script " + scriptName);
Logger.error(e);
throw new ScriptingEngineException();
}
}
private static Script getScript(String name, Integer version) throws ScriptingEngineException
{
if (name == null || name.length() == 0)
throw new ScriptingEngineException("Script name is empty");
Script script;
if (version!=null) {
script = new Script(name, version);
}
else { // empty version: try expression
int split = name.indexOf(":");
script = new Script(name.substring(0, split), name.substring(split + 1));
}
return script;
}
public Workflow getWf()
{
return ((CompositeActivity)getParent()).getWf();
}
}
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