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1 package org.jbpm.webapp.bean;
2
3 import java.util.ArrayList  ;
4 import java.util.HashMap ;
5 import java.util.Iterator ;
6 import java.util.List ;
7 import java.util.Map ;
8
9 import javax.faces.model.SelectItem;
10
11 import org.apache.commons.logging.Log;
12 import org.apache.commons.logging.LogFactory;
13 import org.jbpm.db.GraphSession;
14 import org.jbpm.db.JbpmSession;
15 import org.jbpm.db.TaskMgmtSession;
16 import org.jbpm.graph.def.Transition;
17 import org.jbpm.graph.exe.ProcessInstance;
18 import org.jbpm.logging.exe.LoggingInstance;
19 import org.jbpm.taskmgmt.def.TaskController;
20 import org.jbpm.taskmgmt.exe.TaskFormParameter;
21 import org.jbpm.taskmgmt.exe.TaskInstance;
22 import org.jbpm.taskmgmt.log.TaskAssignLog;
23 import org.jbpm.webapp.context.Context;
24
25 public class TaskBean {
26
27 UserBean userBean = null;
28 List taskFormParameters;
29 List availableTransitions;
30 List availableTransitionItems;
31 TaskInstance taskInstance;
32 long taskInstanceId;
33
34 GraphSession graphSession;
35 TaskMgmtSession taskMgmtSession;
36
37 public TaskBean() {
38 JbpmSession jbpmSession = Context.getPersistenceContext().getJbpmSession();
39 this.graphSession = jbpmSession.getGraphSession();
40 this.taskMgmtSession = jbpmSession.getTaskMgmtSession();
41
42 this.taskFormParameters = (List ) JsfHelper.getSessionAttribute("taskFormParameters");
44 }
45
46 public void initialize(TaskInstance taskInstance) {
47 this.taskInstance = taskInstance;
48 this.taskInstanceId = taskInstance.getId();
49
50 this.taskFormParameters = taskInstance.getTaskFormParameters();
52 JsfHelper.setSessionAttribute("taskFormParameters",taskFormParameters);
54
55 availableTransitions = null;
57
58 availableTransitions = taskInstance.getAvailableTransitions();
59 if ( (availableTransitions!=null)
60 && (availableTransitions.size()<=1)
61 ) {
62 availableTransitions = null;
63 availableTransitionItems = null;
64 } else {
65 availableTransitionItems = new ArrayList ();
66 Iterator iter = availableTransitions.iterator();
67 while (iter.hasNext()) {
68 Transition transition = (Transition) iter.next();
69 SelectItem transitionItem = new SelectItem();
70 transitionItem.setValue(transition.getName());
71 transitionItem.setLabel(transition.getName());
72 transitionItem.setDisabled(false);
73 availableTransitionItems.add(transitionItem);
74 }
75 }
76
77 log.debug("initialized availableTransitions "+availableTransitions);
78 }
79
80 public String save() {
81 log.debug("saving the task parameters "+taskFormParameters);
82
83 Map submitParameters = new HashMap ();
86 Iterator iter = taskFormParameters.iterator();
87 while (iter.hasNext()) {
88 TaskFormParameter taskFormParameter = (TaskFormParameter) iter.next();
89
90 if ( (taskFormParameter.isWritable())
91 && (taskFormParameter.getValue()!=null)
92 ) {
93 log.debug("submitting ["+taskFormParameter.getLabel()+"]="+taskFormParameter.getValue());
94 submitParameters.put(taskFormParameter.getLabel(), taskFormParameter.getValue());
95 } else {
96 log.debug("ignoring unwritable ["+taskFormParameter.getLabel()+"]");
97 }
98 }
99
100 TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(taskInstanceId);
102 TaskController taskController = taskInstance.getTask().getTaskController();
103 log.debug("submitting task parameters: "+submitParameters);
104 taskController.submitParameters(submitParameters, taskInstance);
105
106 JsfHelper.removeSessionAttribute("taskFormParameters");
108
109 graphSession.saveProcessInstance(taskInstance.getTaskMgmtInstance().getProcessInstance());
110
111 return "home";
112 }
113
114 public String saveAndClose() {
115 save();
117
118 String transitionButton = JsfHelper.getParameter("taskform:transitionButton");
120 log.debug("Submitted button:" + transitionButton);
121 TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(taskInstanceId);
122 if ("Save and Close Task".equals(transitionButton)) {
123 taskInstance.end();
124 } else {
125 taskInstance.end(transitionButton);
126 }
127
128 ProcessInstance processInstance = taskInstance.getTaskMgmtInstance().getProcessInstance();
129 if (processInstance.hasEnded()) {
130 JsfHelper.addMessage("The process has finished.");
131 }
132
133 LoggingInstance loggingInstance = processInstance.getLoggingInstance();
134 List assignmentLogs = loggingInstance.getLogs(TaskAssignLog.class);
135
136 log.debug("assignmentlogs: "+assignmentLogs);
137
138 if (assignmentLogs.size()==1) {
139 TaskAssignLog taskAssignLog = (TaskAssignLog) assignmentLogs.get(0);
140 JsfHelper.addMessage("A new task has been assigned to '"+taskAssignLog.getTaskNewActorId()+"'");
141
142 } else if (assignmentLogs.size()>1) {
143 String msg = "New tasks have been assigned to: ";
144 Iterator iter = assignmentLogs.iterator();
145 while (iter.hasNext()) {
146 TaskAssignLog taskAssignLog = (TaskAssignLog) iter.next();
147 msg += taskAssignLog.getActorId();
148 if (iter.hasNext()) msg +=", ";
149 }
150 msg +=".";
151 JsfHelper.addMessage(msg);
152 }
153
154 graphSession.saveProcessInstance(taskInstance.getTaskMgmtInstance().getProcessInstance());
155
156 return "home";
157 }
158
159 public long getTaskInstanceId() {
160 return taskInstanceId;
161 }
162 public void setTaskInstanceId(long taskInstanceId) {
163 this.taskInstanceId = taskInstanceId;
164 }
165 public UserBean getUserBean() {
166 return userBean;
167 }
168 public void setUserBean(UserBean userBean) {
169 this.userBean = userBean;
170 }
171 public List getTaskFormParameters() {
172 return taskFormParameters;
173 }
174 public List getAvailableTransitions() {
175 return availableTransitions;
176 }
177 public void setAvailableTransitions(List availableTransitions) {
178 this.availableTransitions = availableTransitions;
179 }
180 public List getAvailableTransitionItems() {
181 return availableTransitionItems;
182 }
183 public TaskInstance getTaskInstance() {
184 return taskInstance;
185 }
186
187 private static final Log log = LogFactory.getLog(TaskBean.class);
188
189 }
190 |
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