/**
* Copyright 2007-2010 非也
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation。
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses. *
*/
package org.fireflow.pdl.fpdl.enginemodules;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import org.fireflow.engine.context.AbsEngineModule;
import org.fireflow.engine.context.RuntimeContext;
import org.fireflow.engine.entity.repository.ProcessKey;
import org.fireflow.engine.entity.repository.ProcessRepository;
import org.fireflow.engine.exception.WorkflowProcessNotFoundException;
import org.fireflow.engine.modules.persistence.PersistenceService;
import org.fireflow.engine.modules.persistence.ProcessPersister;
import org.fireflow.model.InvalidModelException;
import org.fireflow.pdl.fpdl.behavior.ActivityBehavior;
import org.fireflow.pdl.fpdl.behavior.EndNodeBehavior;
import org.fireflow.pdl.fpdl.behavior.RouterBehavior;
import org.fireflow.pdl.fpdl.behavior.SubProcessBehavior;
import org.fireflow.pdl.fpdl.misc.FpdlConstants;
import org.fireflow.pdl.fpdl.process.Activity;
import org.fireflow.pdl.fpdl.process.EndNode;
import org.fireflow.pdl.fpdl.process.Router;
import org.fireflow.pdl.fpdl.process.StartNode;
import org.fireflow.pdl.fpdl.process.SubProcess;
import org.fireflow.pdl.fpdl.process.Transition;
import org.fireflow.pdl.fpdl.process.WorkflowProcess;
import org.fireflow.pdl.fpdl.process.features.Feature;
import org.fireflow.pdl.fpdl.process.features.startnode.CatchCompensationFeature;
import org.fireflow.pdl.fpdl.process.features.startnode.CatchFaultFeature;
import org.fireflow.pvm.kernel.PObject;
import org.fireflow.pvm.kernel.PObjectKey;
import org.fireflow.pvm.kernel.impl.ArcInstanceImpl;
import org.fireflow.pvm.kernel.impl.NetInstanceImpl;
import org.fireflow.pvm.kernel.impl.NodeInstanceImpl;
import org.fireflow.pvm.pdllogic.WorkflowBehavior;
import org.fireflow.pvm.translate.Process2PObjectTranslator;
/**
*
* @author 非也
* @version 2.0
*/
public class Process2PObjectTranslatorFpdl20Impl extends AbsEngineModule implements
Process2PObjectTranslator {
private WorkflowBehavior transitionBehavior = null;
private WorkflowBehavior startNodeBehavior = null;
private EndNodeBehavior endNodeBehavior = null;
private ActivityBehavior activityBehavior = null;
private RouterBehavior routerBehavior = null;
private SubProcessBehavior subProcessBehavior = null;
// private WorkflowProcessBehavior workflowProcessBehavior = null;
public WorkflowBehavior getTransitionBehavior() {
return transitionBehavior;
}
public void setTransitionBehavior(WorkflowBehavior transitionBehavior) {
this.transitionBehavior = transitionBehavior;
}
public WorkflowBehavior getStartNodeBehavior() {
return startNodeBehavior;
}
public void setStartNodeBehavior(WorkflowBehavior startNodeBehavior) {
this.startNodeBehavior = startNodeBehavior;
}
public EndNodeBehavior getEndNodeBehavior() {
return endNodeBehavior;
}
public void setEndNodeBehavior(EndNodeBehavior endNodeBehavior) {
this.endNodeBehavior = endNodeBehavior;
}
public ActivityBehavior getActivityBehavior() {
return activityBehavior;
}
public void setActivityBehavior(ActivityBehavior activityBehavior) {
this.activityBehavior = activityBehavior;
}
public RouterBehavior getRouterBehavior() {
return routerBehavior;
}
public void setRouterBehavior(RouterBehavior routerBehavior) {
this.routerBehavior = routerBehavior;
}
public SubProcessBehavior getSubProcessBehavior() {
return subProcessBehavior;
}
public void setSubProcessBehavior(SubProcessBehavior subProcessBehavior) {
this.subProcessBehavior = subProcessBehavior;
}
/* (non-Javadoc)
* @see org.fireflow.pvm.translate.PDL2ProcessObjectTranslator#translatePDL2ProcessObjects(org.fireflow.engine.entity.repository.ProcessRepository)
*/
public List<PObject> translateProcess(ProcessKey processKey ,Object process) {
WorkflowProcess fpdl20Process = (WorkflowProcess)process;
List<SubProcess> subflows = fpdl20Process.getLocalSubProcesses();
List<PObject> allPObject = new ArrayList<PObject>();
for (SubProcess subflow:subflows){
List<PObject> pobjectList = translateSubflow(subflow,processKey);
if (pobjectList!=null) allPObject.addAll(pobjectList);
}
return allPObject;
}
private List<PObject> translateSubflow(SubProcess subflow,ProcessKey processKey){
PObjectKey key = new PObjectKey(processKey.getProcessId(),
processKey.getVersion(), processKey.getProcessType(), subflow.getId());
PObject pObject = new NetInstanceImpl(key);
pObject.setWorkflowBehavior(subProcessBehavior);
pObject.setWorkflowElement(subflow);
List<PObject> pobjectList = new ArrayList<PObject>();
pobjectList.add(pObject);
ProcessKey pk = ProcessKey.valueOf(key);
List<StartNode> startNodes = subflow.getStartNodes();
if (startNodes!=null && startNodes.size()>0){
List<PObject> pos = this.translateStartNodes(startNodes, pk);
pobjectList.addAll(pos);
}
List<Router> routers = subflow.getRouters();
if (routers!=null && routers.size()>0){
List<PObject> pos = this.translateRouters(routers, pk);
pobjectList.addAll(pos);
}
List<EndNode> endNodes = subflow.getEndNodes();
if (endNodes!=null && endNodes.size()>0){
List<PObject> pos = this.translateEndNodes(endNodes, pk);
pobjectList.addAll(pos);
}
List<Activity> activities = subflow.getActivities();
if (activities!=null && activities.size()>0){
List<PObject> pos = this.translateActivities(activities, pk);
pobjectList.addAll(pos);
}
List<Transition> transitions = subflow.getTransitions();
if (transitions!=null && transitions.size()>0){
List<PObject> pos = this.translateTransitions(transitions, pk);
pobjectList.addAll(pos);
}
assemblePObject(subflow,pobjectList,pk);
return pobjectList;
}
private List<PObject> translateStartNodes(List<StartNode> startNodes,ProcessKey pk){
List<PObject> result = new ArrayList<PObject>();
for (StartNode startNode:startNodes){
PObjectKey key = new PObjectKey(pk.getProcessId(),
pk.getVersion(), pk
.getProcessType(), startNode.getId());
PObject pObject = new NodeInstanceImpl(key);
pObject.setCancellable(true);
pObject.setCompensable(false);
pObject.setWorkflowBehavior(startNodeBehavior);
pObject.setWorkflowElement(startNode);
result.add(pObject);
}
return result;
}
private List<PObject> translateRouters(List<Router> routers,ProcessKey pk){
List<PObject> result = new ArrayList<PObject>();
for (Router router:routers){
PObjectKey key = new PObjectKey(pk.getProcessId(),
pk.getVersion(), pk
.getProcessType(), router.getId());
PObject pObject = new NodeInstanceImpl(key);
pObject.setCancellable(true);
pObject.setCompensable(false);
pObject.setWorkflowBehavior(routerBehavior);
pObject.setWorkflowElement(router);
result.add(pObject);
}
return result;
}
private List<PObject> translateEndNodes(List<EndNode> endNodes,ProcessKey pk){
List<PObject> result = new ArrayList<PObject>();
for (EndNode endNode:endNodes){
PObjectKey key = new PObjectKey(pk.getProcessId(),
pk.getVersion(), pk
.getProcessType(), endNode.getId());
PObject pObject = new NodeInstanceImpl(key);
pObject.setCancellable(true);
pObject.setCompensable(false);
pObject.setWorkflowBehavior(endNodeBehavior );
pObject.setWorkflowElement(endNode);
result.add(pObject);
}
return result;
}
private List<PObject> translateActivities(List<Activity> activities,ProcessKey pk){
List<PObject> result = new ArrayList<PObject>();
for (Activity activity:activities){
PObjectKey key = new PObjectKey(pk.getProcessId(),
pk.getVersion(), pk
.getProcessType(), activity.getId());
PObject pObject = new NodeInstanceImpl(key);
pObject.setCancellable(true);
pObject.setCompensable(true);
pObject.setWorkflowBehavior(activityBehavior );
pObject.setWorkflowElement(activity);
result.add(pObject);
}
return result;
}
private List<PObject> translateTransitions(List<Transition> transitions,ProcessKey pk){
List<PObject> result = new ArrayList<PObject>();
for (Transition transition:transitions){
PObjectKey key = new PObjectKey(pk.getProcessId(),
pk.getVersion(), pk
.getProcessType(), transition.getId());
PObject pObject = new ArcInstanceImpl(key);
pObject.setCancellable(false);
pObject.setCompensable(false);
pObject.setWorkflowBehavior(transitionBehavior);
pObject.setWorkflowElement(transition);//TODO 流程对象被众多PObject引用，是否浪费内存？
result.add(pObject);
}
return result;
}
/**
* 组装异常处理器，补偿处理器等
* @param subflow
* @param pobjectList
*/
private void assemblePObject(SubProcess subflow ,List<PObject> pobjectList,ProcessKey pk){
List<Activity> activities = subflow.getActivities();
if (activities==null || activities.size()==0){
return;
}
for (Activity activity : activities){
PObjectKey pkey4Activity = new PObjectKey(pk.getProcessId(),pk.getVersion(),pk.getProcessType(),activity.getId());
PObject pobject4Activity = this.findPObject(pobjectList, pkey4Activity);
List<StartNode> attachedStartNodes = activity.getAttachedStartNodes();
if (attachedStartNodes!=null && attachedStartNodes.size()>0){
for (StartNode startNode : attachedStartNodes){
Feature decorator = startNode.getFeature();
if (decorator!=null && decorator instanceof CatchCompensationFeature){
CatchCompensationFeature compensationDecorator = (CatchCompensationFeature)decorator;
PObjectKey pkey = new PObjectKey(pk.getProcessId(),pk.getVersion(),pk.getProcessType(),startNode.getId());
PObject po = this.findPObject(pobjectList, pkey);
if (po!=null){
String compensationCode = compensationDecorator.getCompensationCode();
if (compensationCode==null || compensationCode.trim().equals("")){
compensationCode = CatchCompensationFeature.CATCH_ALL_COMPENSATION;
}else{
//分号分割
StringTokenizer tokenizer = new StringTokenizer(compensationCode,";");
while (tokenizer.hasMoreTokens()){
String code = tokenizer.nextToken();
if (code==null || code.trim().equals("")){
continue;
}
if (CatchCompensationFeature.CATCH_ALL_COMPENSATION.equals(code.trim())){
((NodeInstanceImpl)pobject4Activity).setCompensationHandler(code.trim(), po,true);
}else{
((NodeInstanceImpl)pobject4Activity).setCompensationHandler(code.trim(), po);
}
}
}
}
}else if (decorator!=null && decorator instanceof CatchFaultFeature){
CatchFaultFeature exceptionDecorator = (CatchFaultFeature)decorator;
PObjectKey pkey = new PObjectKey(pk.getProcessId(),pk.getVersion(),pk.getProcessType(),startNode.getId());
PObject po = this.findPObject(pobjectList, pkey);
if (po!=null){
String errorCode = exceptionDecorator.getErrorCode();
if (errorCode==null || errorCode.trim().equals("")){
((NodeInstanceImpl)pobject4Activity).setFaultHandler(CatchFaultFeature.CATCH_ALL_FAULT, po,true);
}
else{
//分号分割
StringTokenizer tokenizer = new StringTokenizer(errorCode,";");
while (tokenizer.hasMoreTokens()){
String code = tokenizer.nextToken();
if (code==null || code.trim().equals("")){
continue;
}
if (CatchFaultFeature.CATCH_ALL_FAULT.equals(code.trim())){
((NodeInstanceImpl)pobject4Activity).setFaultHandler(CatchFaultFeature.CATCH_ALL_FAULT, po,true);
}
else{
((NodeInstanceImpl)pobject4Activity).setFaultHandler(code.trim(), po);
}
}
}
}
}
//TODO 需要catch cancellation decorator吗？
// else if (decorator!=null && decorator instanceof CatchCancellationDecorator){
//
// }
// else if ( is catchTimerDecorator){
//
// }
}
}
}
//装配流程级别的handler
List<StartNode> startNodes = subflow.getStartNodes();
PObject pobject4Process = this.findPObject(pobjectList, new PObjectKey(pk.getProcessId(),pk.getVersion(),pk.getProcessType(),subflow.getId()));
if (startNodes!=null && startNodes.size()>0){
for (StartNode start : startNodes) {
PObjectKey pkey4Start = new PObjectKey(pk.getProcessId(), pk
.getVersion(), pk.getProcessType(), start.getId());
PObject pobject4Start = this.findPObject(pobjectList,
pkey4Start);
Feature decorator = start.getFeature();
if (decorator != null
&& (decorator instanceof CatchFaultFeature)) {
CatchFaultFeature faultDecorator = (CatchFaultFeature) decorator;
if (faultDecorator.getAttachedToActivity()==null){
String errorCode = faultDecorator.getErrorCode();
if (errorCode == null || errorCode.trim().equals("")) {
pobject4Process
.setFaultHandler("", pobject4Start, true);
} else {
pobject4Process.setFaultHandler(errorCode,
pobject4Start);
}
}
} else if (decorator != null
&& (decorator instanceof CatchCompensationFeature)) {
CatchCompensationFeature compensationDecorator = (CatchCompensationFeature) decorator;
if (compensationDecorator.getAttachedToActivity() == null) {
String compensationCode = compensationDecorator
.getCompensationCode();
if (compensationCode == null
|| compensationCode.trim().equals("")) {
compensationCode = CatchCompensationFeature.CATCH_ALL_COMPENSATION;
}
if (compensationCode
.equals(CatchCompensationFeature.CATCH_ALL_COMPENSATION)) {
pobject4Process.setCompensationHandler(
compensationCode, pobject4Start, true);
} else {
pobject4Process.setCompensationHandler(
compensationCode, pobject4Start);
}
}
}
}
}
}
private PObject findPObject(List<PObject> pobjectList,PObjectKey pkey){
if (pobjectList==null || pobjectList.size()==0){
return null;
}
for (PObject pobject : pobjectList){
if (pobject.getKey().equals(pkey)){
return pobject;
}
}
return null;
}
/* (non-Javadoc)
* @see org.fireflow.pvm.translate.Process2PObjectTranslator#translateProcess(org.fireflow.engine.entity.repository.ProcessKey)
*/
public List<PObject> translateProcess(ProcessKey processKey) throws InvalidModelException,WorkflowProcessNotFoundException{
PersistenceService persistenceService = runtimeContext.getEngineModule(PersistenceService.class, FpdlConstants.PROCESS_TYPE_FPDL20);
ProcessPersister processPersister = persistenceService.getProcessPersister();
ProcessRepository repository = processPersister.findProcessRepositoryByProcessKey(processKey);
if (repository==null){
throw new WorkflowProcessNotFoundException("The process is not found, id="+processKey.getProcessId()+", version="+processKey.getVersion()+", processType="+processKey.getProcessType());
}else{
return this.translateProcess(processKey, repository.getProcessObject());
}
}
/* (non-Javadoc)
* @see org.fireflow.engine.context.RuntimeContextAware#getRuntimeContext()
*/
public RuntimeContext getRuntimeContext() {
return runtimeContext;
}
/* (non-Javadoc)
* @see org.fireflow.engine.context.RuntimeContextAware#setRuntimeContext(org.fireflow.engine.context.RuntimeContext)
*/
public void setRuntimeContext(RuntimeContext ctx) {
this.runtimeContext = ctx;
}
private RuntimeContext runtimeContext = null;
}