package org.fireflow.engine.invocation.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.fireflow.client.WorkflowSession;
import org.fireflow.client.impl.WorkflowSessionLocalImpl;
import org.fireflow.engine.context.RuntimeContext;
import org.fireflow.engine.entity.config.ReassignConfig;
import org.fireflow.engine.entity.runtime.ActivityInstance;
import org.fireflow.engine.entity.runtime.ProcessInstance;
import org.fireflow.engine.entity.runtime.WorkItem;
import org.fireflow.engine.entity.runtime.WorkItemProperty;
import org.fireflow.engine.entity.runtime.WorkItemState;
import org.fireflow.engine.exception.EngineException;
import org.fireflow.engine.invocation.AssignmentHandler;
import org.fireflow.engine.modules.ousystem.OUSystemConnector;
import org.fireflow.engine.modules.ousystem.User;
import org.fireflow.engine.modules.ousystem.impl.FireWorkflowSystem;
import org.fireflow.engine.modules.persistence.PersistenceService;
import org.fireflow.engine.modules.persistence.ReassignConfigPersister;
import org.fireflow.engine.modules.workitem.WorkItemManager;
import org.fireflow.model.binding.ResourceBinding;
import org.fireflow.model.binding.ServiceBinding;
import org.fireflow.model.resourcedef.WorkItemAssignmentStrategy;
public abstract class AbsAssignmentHandler implements AssignmentHandler{
/**
*
*/
private static final long serialVersionUID = 433878253467183907L;
public abstract List<User> resolvePotentialOwners(WorkflowSession session, ResourceBinding resourceBinding,
Object theActivity,ProcessInstance processInstance,ActivityInstance activityInstance);
public abstract List<User> resolveReaders(WorkflowSession session, ResourceBinding resourceBinding,
Object theActivity,ProcessInstance processInstance,ActivityInstance activityInstance);
public abstract List<User> resolveAdministrators(WorkflowSession session, ResourceBinding resourceBinding,
Object theActivity,ProcessInstance processInstance,ActivityInstance activityInstance);
public abstract WorkItemAssignmentStrategy resolveAssignmentStrategy(WorkflowSession session, ResourceBinding resourceBinding,
Object theActivity);
public abstract Map<WorkItemProperty,Object> resolveWorkItemPropertyValues();
public List<WorkItem> assign(WorkflowSession session,
ActivityInstance activityInstance,WorkItemManager workItemManager,Object theActivity,
ServiceBinding serviceBinding, ResourceBinding resourceBinding)
throws EngineException {
WorkflowSessionLocalImpl sessionLocal = (WorkflowSessionLocalImpl)session;
RuntimeContext runtimeContext = sessionLocal.getRuntimeContext();
ProcessInstance processInstance = sessionLocal.getCurrentProcessInstance();
List<WorkItem> result = new ArrayList<WorkItem>();
Map<WorkItemProperty,Object> values = this.resolveWorkItemPropertyValues();
if(values==null){
values = new HashMap<WorkItemProperty,Object>();
}
List<User> potentialOwners = this.resolvePotentialOwners(session,resourceBinding,theActivity,processInstance,activityInstance);
if (potentialOwners==null || potentialOwners.size()==0){
//通知业务领导进行处理
List<User> administrators = this.resolveAdministrators(session,resourceBinding,theActivity,processInstance,activityInstance);
if (administrators==null || administrators.size()==0){
//TODO 赋值给Fireflow内置用户，并记录警告信息
WorkItem wi = workItemManager.createWorkItem(session, processInstance, activityInstance, FireWorkflowSystem.getInstance(),theActivity, null);
result.add(wi);
}else{
//这种情况下，ASSIGNMENT_STRATEGY固定为WorkItem.ASSIGNMENT_ANY
values.put(WorkItemProperty.ASSIGNMENT_STRATEGY, WorkItemAssignmentStrategy.ASSIGN_TO_ANY);
for (User user : administrators) {
WorkItem wi = workItemManager.createWorkItem(session,
processInstance, activityInstance, user, theActivity,values);
if (sessionLocal.getCurrentUser().getId().equals(user.getId())){
sessionLocal.getNewWorkItemsForCurrentUser().add(wi);
}
result.add(wi);
List<User> agents = findReassignTo(runtimeContext, activityInstance
.getProcessId(), activityInstance.getProcessType(),
activityInstance.getNodeId(), user.getId());
if (agents != null && agents.size() != 0) {
ReassignmentHandler dynamicAssignmentHandler = new ReassignmentHandler();
dynamicAssignmentHandler.setPotentialOwners(agents);
dynamicAssignmentHandler.setReassignType(WorkItem.REASSIGN_AFTER_ME);
dynamicAssignmentHandler.setParentWorkItemId(wi.getId());
StringBuffer sbuf= new StringBuffer("工作项被自动委派给：");
for (int i = 0;i<agents.size();i++){
User u = agents.get(i);
sbuf.append(u.getName());
if (i<agents.size()-1)sbuf.append("、");
}
wi.setNote(sbuf.toString());
List<WorkItem> agentWorkItems = workItemManager
.reassignWorkItemTo(session, wi,
dynamicAssignmentHandler,
theActivity,
serviceBinding,
resourceBinding);
result.addAll(agentWorkItems);
}
}
}
}else{
WorkItemAssignmentStrategy strategy = this.resolveAssignmentStrategy(session,resourceBinding,theActivity);
if (strategy!=null){
values.put(WorkItemProperty.ASSIGNMENT_STRATEGY, strategy);
}else{
values.put(WorkItemProperty.ASSIGNMENT_STRATEGY, WorkItemAssignmentStrategy.ASSIGN_TO_ANY);
}
for (User user : potentialOwners) {
WorkItem wi = workItemManager.createWorkItem(session,
processInstance, activityInstance, user,theActivity, values);
if (sessionLocal.getCurrentUser().getId().equals(user.getId())){
sessionLocal.getNewWorkItemsForCurrentUser().add(wi);
}
result.add(wi);
//设置note
List<User> agents = findReassignTo(runtimeContext, activityInstance
.getProcessId(), activityInstance.getProcessType(),
activityInstance.getNodeId(), user.getId());
if (agents != null && agents.size() != 0) {
ReassignmentHandler dynamicAssignmentHandler = new ReassignmentHandler();
dynamicAssignmentHandler.setPotentialOwners(agents);
dynamicAssignmentHandler.setReassignType(WorkItem.REASSIGN_AFTER_ME);
dynamicAssignmentHandler.setParentWorkItemId(wi.getId());
StringBuffer sbuf= new StringBuffer("工作项被自动委派给：");
for (int i = 0;i<agents.size();i++){
User u = agents.get(i);
sbuf.append(u.getName());
if (i<agents.size()-1)sbuf.append("、");
}
wi.setNote(sbuf.toString());
List<WorkItem> agentWorkItems = workItemManager
.reassignWorkItemTo(session, wi,
dynamicAssignmentHandler,theActivity,
serviceBinding,resourceBinding);
result.addAll(agentWorkItems);
}
}
}
List<User> readers = this.resolveReaders(session,resourceBinding,theActivity,processInstance,activityInstance);
if (readers != null && readers.size() > 0) {
values.put(WorkItemProperty.ASSIGNMENT_STRATEGY, WorkItemAssignmentStrategy.ASSIGN_TO_ANY);
values.put(WorkItemProperty.STATE, WorkItemState.READONLY);
for (User user : readers) {
WorkItem wi = workItemManager.createWorkItem(session,
processInstance, activityInstance, user,theActivity, values);
result.add(wi);
}
}
return result;
}
protected List<User> findReassignTo(RuntimeContext rtCtx,String processId,String processType,String activityId,String userId){
PersistenceService persistenceService = rtCtx.getEngineModule(PersistenceService.class, processType);
ReassignConfigPersister persister = persistenceService.getReassignConfigPersister();
List<ReassignConfig> configs = persister.findReassignConfig(processId, processType, activityId,userId);
if (configs==null || configs.size()==0) return null;
List<User> agents = new ArrayList<User>();
OUSystemConnector ousystem = rtCtx.getEngineModule(OUSystemConnector.class, processType);
for (ReassignConfig config : configs){
User u = ousystem.findUserById(config.getAgentId());
agents.add(u);
}
return agents;
}
}