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Java > Open Source Codes > org > exoplatform > services > workflow > impl > WorkflowFormsServiceImpl


1 /*
2  * Copyright 2001-2003 The eXo platform SARL All rights reserved.
3  * Please look at license.txt in info directory for more license detail.
4  */
5
6 package org.exoplatform.services.workflow.impl;
7
8 import org.jbpm.model.definition.Definition;
9 import org.jbpm.util.xml.Dom4jHelper;
10 import org.dom4j.Element;
11 import org.dom4j.DocumentException;
12 import org.exoplatform.services.workflow.*;
13
14 import java.util.Locale JavaDoc;
15 import java.util.Map JavaDoc;
16 import java.util.HashMap JavaDoc;
17 import java.util.Iterator JavaDoc;
18
19 /**
20  * Created y the eXo platform team
21  * User: Benjamin Mestrallet
22  * Date: 17 mai 2004
23  */
24 public class WorkflowFormsServiceImpl implements WorkflowFormsService {
25
26   /**
27    * double nested map : definitionId's --> stateName's --> Form's
28    */
29   private static Map JavaDoc allForms = new HashMap JavaDoc();
30
31   public void addForms(Definition definition,
32                        WorkflowExecutionService executionService,
33                        Locale JavaDoc locale) {
34     if (!allForms.containsKey(definition.getId())) {
35       Map JavaDoc stateNameToForms = new HashMap JavaDoc();
36       byte[] bytes = executionService.getFile(definition.getId(), "forms.xml");
37       Iterator JavaDoc iter = null;
38       try {
39         iter = Dom4jHelper.getRootElement(bytes).elements("form").iterator();
40       } catch (DocumentException e) {
41         e.printStackTrace();
42       }
43       while (iter.hasNext()) {
44         Element formElement = (Element) iter.next();
45         Form formConfiguration = new FormImpl(definition.getId(), formElement,
46             executionService, locale);
47         stateNameToForms.put(formConfiguration.getStateName(),
48             formConfiguration);
49       }
50
51       allForms.put(definition.getId(), stateNameToForms);
52     }
53   }
54
55   public Form getForm(Long JavaDoc definitionId, String JavaDoc stateName) {
56     Form formConfiguration = null;
57     if (definitionId == null)
58       throw new NullPointerException JavaDoc("definitionId is null in Form.getForm");
59     if (stateName == null)
60       throw new NullPointerException JavaDoc("stateName is null in Form.getForm");
61
62     Map JavaDoc stateNameToForms = (Map JavaDoc) allForms.get(definitionId);
63     if (stateNameToForms == null)
64       throw new IllegalArgumentException JavaDoc("forms for definition '" + definitionId +
65           "' were not yet initialised");
66     formConfiguration = (Form) stateNameToForms.get(stateName);
67     if (stateNameToForms == null)
68       throw new IllegalArgumentException JavaDoc("no form was specified for state '"
69           + stateName + "' in definition '" + definitionId + "'");
70
71     return formConfiguration;
72   }
73 }
74
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