ConditionEditor


1   package com.opensymphony.workflow.designer.editor;
2   
3   import java.util.HashMap  ;
4   import java.util.Map  ;
5   
6   import com.opensymphony.workflow.designer.WorkflowCell;
7   import com.opensymphony.workflow.designer.WorkflowGraphModel;
8   import com.opensymphony.workflow.designer.spi.ConditionPlugin;
9   import com.opensymphony.workflow.designer.spi.DefaultConditionPlugin;
10  import com.opensymphony.workflow.loader.AbstractDescriptor;
11  import com.opensymphony.workflow.loader.ConditionDescriptor;
12  import com.opensymphony.workflow.loader.ConfigConditionDescriptor;
13  
14  /**
15   * @author baab
16   */
17  public abstract class ConditionEditor
18  {
19    protected WorkflowCell cell;
20    protected WorkflowGraphModel model;
21  
22    public ConditionEditor(WorkflowCell cell)
23    {
24      this.cell = cell;
25    }
26  
27    public WorkflowGraphModel getModel()
28    {
29      return model;
30    }
31  
32    public void setModel(WorkflowGraphModel model)
33    {
34      this.model = model;
35    }
36  
37    public ConditionDescriptor add()
38    {
39      ConfigConditionDescriptor condition = getCondition();
40      if(condition == null)
41      {
42        return null;
43      }
44  
45      condition = editCondition(condition);
46  
47      if(condition != null)
48      {
49        ConditionDescriptor cond = new ConditionDescriptor();
50        //            cond.setId(0);
51        //            cond.setNegate(false);
52        cond.setParent(getParent());
53        cond.setType(condition.getType());
54        cond.setName(condition.getName());
55        cond.getArgs().putAll(condition.getArgs());
56  
57        return cond;
58      }
59      else
60      {
61        return null;
62      }
63  
64    }
65  
66    public void modify(ConditionDescriptor cond)
67    {
68      ConfigConditionDescriptor condition;
69  
70      if(cond.getName() != null)
71      {
72          condition = new ConfigConditionDescriptor(getConfigDescriptor(cond));
73      }
74      else
75      {
76        condition = new ConfigConditionDescriptor(getModel().getPalette());
77        condition.setType(cond.getType());
78      }
79  
80      condition.getArgs().putAll(cond.getArgs());
81  
82      condition = editCondition(condition);
83  
84      if(condition != null)
85      {
86        cond.getArgs().putAll(condition.getArgs());
87      }
88    }
89  
90      protected abstract ConfigConditionDescriptor getConfigDescriptor(ConditionDescriptor cond);
91  
92      private ConfigConditionDescriptor editCondition(ConfigConditionDescriptor config)
93    {
94      // get plugin
95      String   clazz = config.getPlugin();
96      if(clazz == null || clazz.length() == 0)
97      {
98        clazz = "com.opensymphony.workflow.designer.spi.DefaultConditionPlugin";
99      }
100     ConditionPlugin condImpl;
101     try
102     {
103       condImpl = (ConditionPlugin)Class.forName(clazz).newInstance();
104     }
105     catch(Exception   e1)
106     {
107       e1.printStackTrace();
108       condImpl = new DefaultConditionPlugin();
109     }
110 
111     condImpl.setCondition(config);
112 
113     // put the parameter
114     Map   args = new HashMap  ();
115     args.put("cell", cell);
116 
117     if(!condImpl.editCondition(args))
118     {
119       // cancel
120       return null;
121     }
122     config = condImpl.getCondition();
123     return config;
124   }
125 
126   abstract protected AbstractDescriptor getParent();
127 
128   abstract protected ConfigConditionDescriptor getCondition();
129 }
130
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