[JBoss jBPM] - How to model this process??
by frantisek.kocun＠gmail.com
Hi, I have one interesting real world process and don't find the right elements to express it. This will be only part of a process. Of course u can advice me to code some custom nodes (more specifically Behaviors), we already use PVM. I can code this process with process specific nodes but I'm interested in some general nodes I can reuse. Also u can advice me what to put in a statemachine of object and what into the process logic.
BTW I think it is not a simple object state machine but a workflow or combination of both. Look at the process of reviewing.
In process are two role AUTHOR and REVIEWER. Process is about document with 3 states. CREATED<-->REVIEWING-->ACCEPTED
1. AUTHOR creates document and it is in state CREATED. Author can edit this document.
2. If AUTHOR's job is done he moves document to state REVIEWING.
3. There is a ordered list with REVIEWERs which is computed, when document comes to this state (given by runtime not definition, in definition is only computation). Tasks with reviewing are sequentially created or enabled for every REVIEWER. That means if first REVIEWER finish reviewing only then second REVIEWER has task to review document.
4. If last reviewer finish reviewing document comes to state ACCEPTED and some logic is done.
5. When document is in state REVIEWING, AUTHOR can every time put document back to state CREATED. I than time all unfinished task for REVIEWER should be deleted/deactivated. When AUTHOR put document to state REVIEWING all the REVIEWERs has to review the document. (Even those who reviewed it already, because document changed).
Complicated to do are steps 3. and 5. 5 is more complicated for me.
I can solve step 3 in two ways, even creating general behavior. Which one is better if any?
- Creating special SerialTask. I create serial tasks for all the REVIEWERs. They are in state Inactive if first ends it activates second task and so on. When last ends it signals the token.
- Creating a special node. In this node One can specify how the first task should look like and how the next task should look like. So it gets the list of REVIEWERs and creates first task for the first in the list. Than it creates second task if first is finished. It gets the list and look who is next.. So in the condition for next task one can use previous task as variable. If there are no more REVIEWERs it will signal token.
Thank you for your help!
Fero
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16 years, 10 months
[EJB 3.0] - Stateful bean fail to deploy - JBoss 5.1.0.GA
by kpupkov
JBoss samples can be deployed without error. However my classes failed to load.
| package connection.bean;
|
| import java.util.Collection;
| import java.util.HashMap;
|
| public interface DocumentFacade {
|
| Collection getProjectNameByLogin(String login);
|
| String getRM(String projectName);
|
| HashMap getCreatives(String login);
|
| byte[] getArchiveByProjectName(String projectName);
| }
|
Implementation:
package connection.bean;
|
| import java.io.ByteArrayOutputStream;
| import java.io.File;
| import java.io.FileInputStream;
| import java.io.FileNotFoundException;
| import java.io.Serializable;
| import java.util.ArrayList;
| import java.util.Arrays;
| import java.util.Collection;
| import java.util.Collections;
| import java.util.HashMap;
| import java.util.HashSet;
| import java.util.Iterator;
| import java.util.List;
|
| import javax.ejb.Stateful;
| import javax.ejb.Remote;
| import javax.ejb.Remove;
| import javax.persistence.PersistenceContext;
|
| @Stateful
| @Remote(DocumentFacade.class)
| public class DocumentFacadeBean implements DocumentFacade,Serializable {
| @PersistenceContext
| private UserFacade user = null;
|
| public Collection getProjectNameByLogin(String login) {
| List list = new ArrayList();
| // FIXME homeProject
| Collection col = null;// homeProject.getByLogin(login);
| Iterator itr = col.iterator();
| while (itr.hasNext()) {
| String name = (String) itr.next();
| list.add(name);
| }
| return list;
| }
|
|
| public String getRM(String projectName) {
| FileInputStream fis = null;
| try {
| fis = new FileInputStream("rm" + projectName.toUpperCase() + ".xml");
| } catch (FileNotFoundException ex) {
| return "";
| }
| ByteArrayOutputStream baos = new ByteArrayOutputStream();
| byte b[] = new byte[1024];
| int r = -1;
| try {
| if (fis != null) {
| while ((r = fis.read(b)) != -1) {
| baos.write(b, 0, r);
| }
| }
| fis.close();
| return baos.toString();
| } catch (Exception e) {
| return "";
| }
| }
|
|
| public java.util.HashMap<String, byte[]> getCreatives(String login) {
| HashMap<String, byte[]> map = new HashMap<String, byte[]>();
| Collection col = null;// homeProject.getByLogin(login);
| Iterator itr = col.iterator();
| while (itr.hasNext()) {
| String name = (String) itr.next();
| byte[] b = null;//getArchiveByLogin(login, name);
| map.put(name, b);
| }
| return map;
| }
|
|
| public byte[] getArchiveByProjectName(String projectName) {
| return null;
| }
|
| }
|
error:
| 2009-06-21 10:17:27,548 DEBUG [org.jboss.ejb3.session.ProxyDeployer] (main) default remote binding has jndiName of DocumentFacadeBean/remote
| 2009-06-21 10:17:27,549 DEBUG [org.jboss.ejb3.Ejb3Registry] (main) Unregistered container jboss.j2ee:jar=dfserver.jar,name=DocumentFacadeBean,service=EJB3,VMID=583c10bfdbd326ba:da2fe9b:12203d1cd17:-7ff9
| 2009-06-21 10:17:27,549 DEBUG [org.jboss.ejb3.Ejb3Registry] (main) Unregistered container jboss.j2ee:jar=dfserver.jar,name=UserFacadeBean,service=EJB3,VMID=583c10bfdbd326ba:da2fe9b:12203d1cd17:-7ff9
| 2009-06-21 10:17:27,549 DEBUG [org.jboss.ejb3.Ejb3Deployment] (main) error trying to stop ejb deployment: null
| javax.management.RuntimeOperationsException
| at org.jboss.mx.server.registry.BasicMBeanRegistry.get(BasicMBeanRegistry.java:512)
| at org.jboss.mx.server.MBeanServerImpl.unregisterMBean(MBeanServerImpl.java:383)
| at org.jboss.ejb3.Ejb3Deployment.unregisterDeployment(Ejb3Deployment.java:440)
| at org.jboss.ejb3.Ejb3Deployment.destroy(Ejb3Deployment.java:747)
| at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:501)
| at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:182)
| at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:99)
| at org.jboss.deployers.vfs.spi.deployer.AbstractVFSRealDeployer.internalDeploy(AbstractVFSRealDeployer.java:45)
| at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
| at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
| at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
| at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631)
| at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
| at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:702)
| at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)
| at org.jboss.system.server.profileservice.repository.ProfileDeployAction.install(ProfileDeployAction.java:70)
| at org.jboss.system.server.profileservice.repository.AbstractProfileAction.install(AbstractProfileAction.java:53)
| at org.jboss.system.server.profileservice.repository.AbstractProfileService.install(AbstractProfileService.java:361)
| at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
| at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631)
| at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
| at org.jboss.system.server.profileservice.repository.AbstractProfileService.activateProfile(AbstractProfileService.java:306)
| at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:271)
| at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461)
| at org.jboss.Main.boot(Main.java:221)
| at org.jboss.Main$1.run(Main.java:556)
| at java.lang.Thread.run(Thread.java:619)
| Caused by: java.lang.IllegalArgumentException: null object name
| ... 39 more
| 2009-06-21 10:17:27,549 DEBUG [org.jboss.ejb3.deployers.Ejb3Deployer] (main) Error during deploy: vfszip:/jboss/server/default/deploy/dfserver.jar/
| org.jboss.deployers.spi.DeploymentException: Error deploying dfserver.jar: Error creating ejb container DocumentFacadeBean: Container jboss.j2ee:jar=dfserver.jar,name=DocumentFacadeBean,service=EJB3,VMID=583c10bfdbd326ba:da2fe9b:12203d1cd17:-7ff9 + is already registered
| at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:196)
| at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:99)
| at org.jboss.deployers.vfs.spi.deployer.AbstractVFSRealDeployer.internalDeploy(AbstractVFSRealDeployer.java:45)
| at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
| at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
| at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
| at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631)
| at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
| at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
| at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:702)
| at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)
| at org.jboss.system.server.profileservice.repository.ProfileDeployAction.install(ProfileDeployAction.java:70)
| at org.jboss.system.server.profileservice.repository.AbstractProfileAction.install(AbstractProfileAction.java:53)
| at org.jboss.system.server.profileservice.repository.AbstractProfileService.install(AbstractProfileService.java:361)
| at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
| at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631)
| at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
| at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
| at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
| at org.jboss.system.server.profileservice.repository.AbstractProfileService.activateProfile(AbstractProfileService.java:306)
| at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:271)
| at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:461)
| at org.jboss.Main.boot(Main.java:221)
| at org.jboss.Main$1.run(Main.java:556)
| at java.lang.Thread.run(Thread.java:619)
| Caused by: org.jboss.deployers.spi.DeploymentException: Error creating ejb container DocumentFacadeBean: Container jboss.j2ee:jar=dfserver.jar,name=DocumentFacadeBean,service=EJB3,VMID=583c10bfdbd326ba:da2fe9b:12203d1cd17:-7ff9 + is already registered
| at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:732)
| at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:669)
| at org.jboss.ejb3.Ejb3Deployment.deployUrl(Ejb3Deployment.java:651)
| at org.jboss.ejb3.Ejb3Deployment.deploy(Ejb3Deployment.java:614)
| at org.jboss.ejb3.Ejb3Deployment.create(Ejb3Deployment.java:491)
| at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:182)
| ... 33 more
| Caused by: java.lang.IllegalStateException: Container jboss.j2ee:jar=dfserver.jar,name=DocumentFacadeBean,service=EJB3,VMID=583c10bfdbd326ba:da2fe9b:12203d1cd17:-7ff9 + is already registered
| at org.jboss.ejb3.Ejb3Registry.register(Ejb3Registry.java:128)
| at org.jboss.ejb3.Ejb3Deployment.deployElement(Ejb3Deployment.java:728)
| ... 38 more
Please advise how to fix it.
View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4238913#4238913
Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4238913
16 years, 10 months