Hi all,
I am always in trouble... sigh... This is the situation:
| -------------------------------------- PROCESS DEFINITION
--------------------------------------
|
| <?xml version="1.0" encoding="UTF-8"?>
| <process-definition xmlns="urn:jbpm.org:jpdl-3.1" name="Initiator">
| <swimlane name="initiator" />
| <start-state name="start new process">
| <task swimlane="process initiator" />
| <transition name="tr1" to="decision">
| <action name="action"
class="com.sample.action.SampleActionHandler">
| </action>
| </transition>
| </start-state>
| <decision name="decision">
| <handler class="com.sample.decision.SampleDecisionHandler"></handler>
| <transition name="tr2" to="action"></transition>
| <transition name="tr3" to="end1"></transition>
| </decision>
| <state name="action">
| <transition name="tr4" to="end1"></transition>
| </state>
| <end-state name="end1"></end-state>
| </process-definition>
|
|
| ---------------------------------------- MY ACTION HANDLER
--------------------------------------
|
|
| package com.sample.action;
|
| import org.jbpm.graph.def.ActionHandler;
| import org.jbpm.graph.exe.ExecutionContext;
|
| public class SampleActionHandler implements ActionHandler
| {
| private static final long serialVersionUID = 1L;
| public void execute(ExecutionContext context) throws Exception
| {
| Runtime rt = null;
| Process process = null;
|
| context.getContextInstance().createVariable("greeting", "Greeting
from SampleActionHandler");
| try
| {
| rt = Runtime.getRuntime();
| process = rt.exec("C:\\Applications~1\\ECLIPSE~1\\Start.bat");
| context.getContextInstance().createVariable("status", new
Integer(process.waitFor()));
| }
| catch (Exception e)
| {
| System.out.println(e);
| context.getContextInstance().createVariable("budget", new
Integer(1));
| }
| }
| }
|
|
| ------------------------------------- MY DECISION HANDLER
--------------------------------------
|
|
| package com.sample.decision;
|
| import org.jbpm.graph.exe.ExecutionContext;
| import org.jbpm.graph.node.DecisionHandler;
|
| public class SampleDecisionHandler implements DecisionHandler
| {
| private static final long serialVersionUID = 1L;
| public String decide(ExecutionContext context) throws Exception
| {
| int budget =
((Number)context.getContextInstance().getVariable("status")).intValue();
| if (budget == 0) return "tr2";
| else if (budget == 1) return "tr3";
| else return "tr3";
| }
| }
|
|
| ---------------------------------------- MY NEW CLASS
----------------------------------------
|
|
| package com.sample.util;
|
| import org.jbpm.graph.def.ProcessDefinition;
| import org.jbpm.graph.exe.ProcessInstance;
|
| public class StartProcess
| {
| private String path = "";
|
| /** Creates a new instance of StartProcess */
| private StartProcess()
| {
| path = "C:\\Applications and Projects\\ECLIPSE Workspace\\Process
Initiator\\src\\" +
| "process\\Initiator.par\\processdefinition.xml";
| }
|
|
| public void init()
| {
| try
| {
| ProcessDefinition def =
ProcessDefinition.parseXmlResource(path);
| System.out.println("STEP 1 - Istanziata la classe
ProcessDefinition");
|
| ProcessInstance instance = new ProcessInstance(def);
| System.out.println("STEP 2 - Istanziata la classe
ProcessInstance");
|
| instance.signal();
| System.out.println("STEP 3 - Effettuato il primo signal");
| }
| catch(Exception e)
| {
| System.err.println(e.getMessage());
| //e.printStackTrace();
| }
| }
|
|
| public static void main(String[] args)
| {
| try
| {
| StartProcess sp = new StartProcess();
| System.out.println("STEP 0 - Istanziata la classe
StartProcess");
| System.out.println(sp.path);
| sp.init();
| }
| catch(Exception exc)
| {
| System.err.println(exc.getMessage());
| exc.printStackTrace();
| }
| }
| }
|
When I try to execute my class "StartProcess" then I have the error "Couldn't
parse process definition...". This is the output:
[java] STEP 0 - Istanziata la classe StartProcess
[java] C:\Applications and Projects\ECLIPSE Workspace\Process
Initiator\src\process\Initiator.par\processdefinition.xml
[java] 11:46:44,190 [main] INFO JbpmConfiguration : using jbpm configuration
resource 'jbpm.cfg.xml'
[java] 11:46:44,737 [main] DEBUG JbpmConfiguration : creating jbpm
configuration from input stream
[java] 11:46:44,831 [main] ERROR JpdlXmlReader : couldn't parse process
definition
[java] org.dom4j.DocumentException: null Nested exception: null
[java] at org.dom4j.io.SAXReader.read(SAXReader.java:484)
[java] at org.jbpm.jpdl.xml.JpdlParser.parse(JpdlParser.java:57)
[java] at
org.jbpm.jpdl.xml.JpdlXmlReader.readProcessDefinition(JpdlXmlReader.java:138)
[java] at
org.jbpm.graph.def.ProcessDefinition.parseXmlInputStream(ProcessDefinition.java:172)
[java] at
org.jbpm.graph.def.ProcessDefinition.parseXmlResource(ProcessDefinition.java:153)
[java] at com.sample.util.StartProcess.init(StartProcess.java:22)
[java] at com.sample.util.StartProcess.main(StartProcess.java:47)
[java] Nested exception:
[java] [[ERROR] couldn't parse process definition]
[java] java.net.MalformedURLException
[java] at java.net.URL.(URL.java:571)
[java] at java.net.URL.(URL.java:434)
[java] at java.net.URL.(URL.java:383)
[java] at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown
Source)
[java] at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown
Source)
[java] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
[java] at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
[java] at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
[java] at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
[java] at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
[java] at org.dom4j.io.SAXReader.read(SAXReader.java:465)
[java] at org.jbpm.jpdl.xml.JpdlParser.parse(JpdlParser.java:57)
[java] at
org.jbpm.jpdl.xml.JpdlXmlReader.readProcessDefinition(JpdlXmlReader.java:138)
[java] at
org.jbpm.graph.def.ProcessDefinition.parseXmlInputStream(ProcessDefinition.java:172)
[java] at
org.jbpm.graph.def.ProcessDefinition.parseXmlResource(ProcessDefinition.java:153)
[java] at com.sample.util.StartProcess.init(StartProcess.java:22)
[java] at com.sample.util.StartProcess.main(StartProcess.java:47)
Could someone explain to me why I'm having this error and what do I have to do
to solve it ?
Thank you very much in advance !!
Regards,
Fidalma
Italy
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