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package com.c2kernel.lifecycle.instance;
import java.util.HashMap;
import com.c2kernel.common.InvalidDataException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.graph.model.GraphableVertex;
import com.c2kernel.lifecycle.instance.stateMachine.Transitions;
import com.c2kernel.lifecycle.routingHelpers.ViewpointDataHelper;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.lookup.EntityPath;
import com.c2kernel.persistency.ClusterStorage;
import com.c2kernel.process.Gateway;
import com.c2kernel.scripting.Script;
import com.c2kernel.scripting.ScriptingEngineException;
import com.c2kernel.utils.KeyValuePair;
import com.c2kernel.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*/
public abstract void runfirst(AgentPath agent) throws ScriptingEngineException;
/**
* @see java.lang.Object#Object()
*/
public WfVertex()
{
super();
setIsLayoutable(true);
setIsComposite(false);
}
/**
* Method runNext.
*/
public void runNext(AgentPath agent) throws ScriptingEngineException
{
try
{
((CompositeActivity)getParent()).request(agent, Transitions.COMPLETE, null);
}
catch (Exception e)
{
//Logger.error(e);
}
}
/**
* Method reinit.
* @param idLoop
*/
public abstract void reinit( int idLoop );
/**
* Method verify.
* @return boolean
*/
public abstract boolean verify();
/**
* Method getErrors.
* @return String
*/
public abstract String getErrors();
/**
* Method run.
*/
public abstract void run(AgentPath agent) throws ScriptingEngineException;
/**
* Method loop.
* @return boolean
*/
public abstract boolean loop();
/**
* Method addNext.
* @param vertex
*/
public abstract Next addNext(WfVertex vertex);
protected Object evaluateScript(String scriptName, String scriptVersion) throws ScriptingEngineException
{
try
{
EntityPath entity = ((CompositeActivity) getParent()).getWf().getItemEntityPath();
Script script = getScript(scriptName, scriptVersion);
KeyValuePair[] k = getProperties().getKeyValuePairs();
HashMap requiredInput = script.getAllInputParams();
for (int i = 0; i < k.length; i++)
{
if (requiredInput.containsKey(k[i].getKey()))
{
String value = k[i].getStringValue();
Object inputParam = value;
if (value.startsWith("viewpoint//"))
{
value = value.substring(11);
if (value.startsWith("."))
value = entity.getSysKey() + 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(entity.getSysKey(), ClusterStorage.PROPERTY+"/"+value, null);
} catch (ObjectNotFoundException ex) {
inputParam = null;
}
}
Logger.msg(5, "Split.evaluateScript() - Setting param " + k[i].getKey() + " to " + inputParam.toString());
script.setInputParamValue(k[i].getKey(), inputParam);
}
}
if (requiredInput.containsKey("item")) {
script.setInputParamValue("item", Gateway.getProxyManager().getProxy(entity));
}
if (requiredInput.containsKey("agent")) {
AgentPath systemAgent = Gateway.getLDAPLookup().getRoleManager().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 Script getScript(String name, String version) throws ScriptingEngineException
{
Script script;
try
{
script = new Script(name, Integer.parseInt(version));
}
catch (NumberFormatException e)
{ // version not valid
int split = name.indexOf(":");
if (split > -1)
{
script = new Script(name.substring(0, split), name.substring(split + 1));
}
else
throw new ScriptingEngineException("Could not find script " + name + " v" + version);
}
return script;
}
public Workflow getWf()
{
return ((CompositeActivity)getParent()).getWf();
}
}
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