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1
5 package com.opensymphony.workflow.util;
6
7 import com.opensymphony.module.propertyset.PropertySet;
8
9 import com.opensymphony.workflow.*;
10
11 import webwork.action.Action;
12 import webwork.action.ActionContext;
13
14 import webwork.dispatcher.ActionResult;
15 import webwork.dispatcher.GenericDispatcher;
16
17 import java.lang.reflect.Method  ;
18
19 import java.security.Principal ;
20
21 import java.util.*;
22
23
24
30 public class WebWorkValidator implements Validator {
31
33 public void validate(Map transientVars, Map args, PropertySet ps) throws WorkflowException {
34 final WorkflowContext wfContext = (WorkflowContext) transientVars.get("context");
35
36 String actionName = (String ) args.get("action.name");
37 GenericDispatcher gd = new GenericDispatcher(actionName);
38 gd.prepareContext();
39 ActionContext.setPrincipal(new Principal () {
40 public String getName() {
41 return wfContext.getCaller();
42 }
43 });
44 ActionContext.setApplication(args);
45 ActionContext.setSession(ps.getProperties(""));
46 ActionContext.setLocale(Locale.getDefault());
47 ActionContext.setParameters(Collections.unmodifiableMap(transientVars));
48
49 boolean hasErrors = false;
50 InvalidInputException iie = new InvalidInputException();
51
52 try {
53 gd.executeAction();
54
55 ActionResult ar = gd.finish();
56 gd.finalizeContext();
57
58 List actions = ar.getActions();
59
60 for (Iterator iterator = actions.iterator(); iterator.hasNext();) {
61 Action action = (Action) iterator.next();
62
63 List errorMessages = getErrorMessages(action);
64
65 for (Iterator iterator2 = errorMessages.iterator();
66 iterator2.hasNext();) {
67 String error = (String ) iterator2.next();
68 iie.addError(error);
69 hasErrors = true;
70 }
71
72 Map errors = getErrors(action);
73
74 for (Iterator iterator2 = errors.entrySet().iterator();
75 iterator2.hasNext();) {
76 Map.Entry entry = (Map.Entry) iterator2.next();
77 String error = (String ) entry.getKey();
78 String message = (String ) entry.getValue();
79 iie.addError(error, message);
80 hasErrors = true;
81 }
82 }
83 } catch (Exception e) {
84 throw new WorkflowException("Could not execute action " + actionName, e);
85 }
86
87 if (hasErrors) {
88 throw iie;
89 }
90 }
91
92 private List getErrorMessages(Action action) {
93 try {
94 Method m = action.getClass().getMethod("getErrorMessages", new Class [] {
95
96 });
97
98 return (List) m.invoke(action, new Object [] {});
99 } catch (Throwable t) {
100 return Collections.EMPTY_LIST;
101 }
102 }
103
104 private Map getErrors(Action action) {
105 try {
106 Method m = action.getClass().getMethod("getErrors", new Class [] {});
107
108 return (Map) m.invoke(action, new Object [] {});
109 } catch (Throwable t) {
110 return Collections.EMPTY_MAP;
111 }
112 }
113 }
114 |
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