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/**************************************************************************
* ItemProxy.java
*
* $Revision: 1.25 $
* $Date: 2005/05/10 11:40:09 $
*
* Copyright (C) 2001 CERN - European Organization for Nuclear Research
* All rights reserved.
**************************************************************************/
package com.c2kernel.entity.proxy;
import java.util.ArrayList;
import com.c2kernel.collection.Collection;
import com.c2kernel.collection.CollectionMember;
import com.c2kernel.common.AccessRightsException;
import com.c2kernel.common.InvalidDataException;
import com.c2kernel.common.InvalidTransitionException;
import com.c2kernel.common.ObjectAlreadyExistsException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.common.PersistencyException;
import com.c2kernel.entity.Item;
import com.c2kernel.entity.ItemHelper;
import com.c2kernel.entity.ManageableEntity;
import com.c2kernel.entity.agent.Job;
import com.c2kernel.entity.agent.JobArrayList;
import com.c2kernel.lifecycle.instance.Workflow;
import com.c2kernel.lifecycle.instance.stateMachine.Transitions;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.persistency.outcome.Viewpoint;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.Logger;
/******************************************************************************
* It is a wrapper for the connection and communication with Item
* It caches data loaded from the Item to reduce communication
*
* @version $Revision: 1.25 $ $Date: 2005/05/10 11:40:09 $
* @author $Author: abranson $
******************************************************************************/
public class ItemProxy extends EntityProxy
{
/**************************************************************************
*
**************************************************************************/
protected ItemProxy( org.omg.CORBA.Object ior,
int systemKey)
throws ObjectNotFoundException
{
super(ior, systemKey);
}
@Override
public ManageableEntity narrow() throws ObjectNotFoundException
{
try {
return ItemHelper.narrow(mIOR);
} catch (org.omg.CORBA.BAD_PARAM ex) { }
throw new ObjectNotFoundException("CORBA Object was not an Item, or the server is down.");
}
/**************************************************************************
*
*
**************************************************************************/
public void initialise( int agentId,
String itemProps,
String workflow )
throws AccessRightsException,
InvalidDataException,
PersistencyException,
ObjectNotFoundException
{
Logger.msg(7, "ItemProxy::initialise - started");
((Item)getEntity()).initialise( agentId, itemProps, workflow );
}
public void setProperty(AgentProxy agent, String name, String value)
throws AccessRightsException,
PersistencyException
{
String[] params = new String[2];
params[0] = name;
params[1] = value;
try {
agent.execute(this, "WriteProperty", params);
} catch (AccessRightsException e) {
throw (e);
} catch (PersistencyException e) {
throw (e);
} catch (Exception e) {
Logger.error(e);
throw new PersistencyException("Could not store property");
}
}
/**************************************************************************
*
**************************************************************************/
protected void requestAction( Job thisJob )
throws AccessRightsException,
InvalidTransitionException,
ObjectNotFoundException,
InvalidDataException,
PersistencyException,
ObjectAlreadyExistsException
{
String outcome = thisJob.getOutcomeString();
// check fields that should have been filled in
if (outcome==null)
if (thisJob.requiresOutcome())
throw new InvalidDataException("Outcome is required.", "");
else
outcome="";
if (thisJob.getAgentId() == -1)
throw new InvalidDataException("No Agent specified.", "");
Logger.msg(7, "ItemProxy - executing "+thisJob.getStepPath()+" for "+thisJob.getAgentName());
requestAction (thisJob.getAgentId(), thisJob.getStepPath(),
thisJob.getPossibleTransition(), outcome);
}
//requestData is xmlString
public void requestAction( int agentId,
String stepPath,
int transitionID,
String requestData
)
throws AccessRightsException,
InvalidTransitionException,
ObjectNotFoundException,
InvalidDataException,
PersistencyException,
ObjectAlreadyExistsException
{
((Item)getEntity()).requestAction( agentId,
stepPath,
transitionID,
requestData );
}
/**************************************************************************
*
**************************************************************************/
public String queryLifeCycle( int agentId,
boolean filter
)
throws AccessRightsException,
ObjectNotFoundException,
PersistencyException
{
return ((Item)getEntity()).queryLifeCycle( agentId,
filter );
}
/**************************************************************************
*
**************************************************************************/
private ArrayList<Job> getJobList(int agentId, boolean filter)
throws AccessRightsException,
ObjectNotFoundException,
PersistencyException
{
JobArrayList thisJobList;
try {
String jobs = queryLifeCycle(agentId, filter);
thisJobList = (JobArrayList)Gateway.getMarshaller().unmarshall(jobs);
}
catch (Exception e) {
Logger.error(e);
throw new PersistencyException("Exception::ItemProxy::getJobList() - Cannot unmarshall the jobs", null);
}
return thisJobList.list;
}
/**
* Returns all Jobs (possible state transitions in all active Activities) that the given Agent may perform in this Item.
*
* @param agent - the Agent who will perform the execution
* @return ArrayList of Jobs
* @throws AccessRightsException
* @throws ObjectNotFoundException
* @throws PersistencyException
*/
public ArrayList<Job> getJobList(AgentProxy agent)
throws AccessRightsException,
ObjectNotFoundException,
PersistencyException
{
return getJobList(agent.getSystemKey());
}
private ArrayList<Job> getJobList(int agentId)
throws AccessRightsException,
ObjectNotFoundException,
PersistencyException
{
return getJobList(agentId, true);
}
private Job getJobByName(String actName, int agentId)
throws AccessRightsException,
ObjectNotFoundException,
PersistencyException {
ArrayList<Job> jobList = getJobList(agentId);
for (Job job : jobList) {
int transition = job.getPossibleTransition();
if (job.getStepName().equals(actName))
if (transition == Transitions.COMPLETE || transition == Transitions.DONE)
return job;
}
return null;
}
public Collection<? extends CollectionMember> getCollection(String collName) throws ObjectNotFoundException {
return (Collection<? extends CollectionMember>)getObject(ClusterStorage.COLLECTION+"/"+collName);
}
public Workflow getWorkflow() throws ObjectNotFoundException {
return (Workflow)getObject(ClusterStorage.LIFECYCLE+"/workflow");
}
public Viewpoint getViewpoint(String schemaName, String viewName) throws ObjectNotFoundException {
return (Viewpoint)getObject(ClusterStorage.VIEWPOINT+"/"+schemaName+"/"+viewName);
}
/**
* Queries for DONE or COMPLETE Jobs in the named Activity
*
* @param actName The activity name to search for
* @param agent The agent who will be performing the transition
* @return A Job object to complete the named Activity
* @throws AccessRightsException
* @throws ObjectNotFoundException
* @throws PersistencyException
*/
public Job getJobByName(String actName, AgentProxy agent)
throws AccessRightsException,
ObjectNotFoundException,
PersistencyException {
return getJobByName(actName, agent.getSystemKey());
}
}
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