FunctionEditor


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.DefaultFunctionPlugin;
9   import com.opensymphony.workflow.designer.spi.FunctionPlugin;
10  import com.opensymphony.workflow.loader.AbstractDescriptor;
11  import com.opensymphony.workflow.loader.ConfigFunctionDescriptor;
12  import com.opensymphony.workflow.loader.FunctionDescriptor;
13  
14  /**
15   * @author baab
16   */
17  public abstract class FunctionEditor
18  {
19    protected WorkflowCell cell;
20    protected WorkflowGraphModel model;
21  
22    public FunctionEditor(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 FunctionDescriptor add()
38    {
39      ConfigFunctionDescriptor function = getFunction();
40      if(function == null)
41      {
42        return null;
43      }
44  
45      function = editFunction(function);
46  
47      if(function != null)
48      {
49        FunctionDescriptor func = new FunctionDescriptor();
50        //            cond.setId(0);
51        func.setParent(getParent());
52        func.setType(function.getType());
53        func.setName(function.getName());
54        func.getArgs().putAll(function.getArgs());
55  
56        return func;
57      }
58      else
59      {
60        return null;
61      }
62  
63    }
64  
65    public void modify(FunctionDescriptor func)
66    {
67      ConfigFunctionDescriptor function;
68  
69      if(func.getName() != null)
70      {
71          function = new ConfigFunctionDescriptor(getModel().getPalette().getPrefunction(func.getName()));
72      }
73      else
74      {
75        function = new ConfigFunctionDescriptor(getModel().getPalette());
76        function.setType(func.getType());
77      }
78  
79      function.getArgs().putAll(func.getArgs());
80  
81      function = editFunction(function);
82  
83      if(function != null)
84      {
85        func.getArgs().putAll(function.getArgs());
86      }
87  
88    }
89  
90    private ConfigFunctionDescriptor editFunction(ConfigFunctionDescriptor config)
91    {
92      // get plugin
93      String   clazz = config.getPlugin();
94      if(clazz == null || clazz.length() == 0)
95      {
96        clazz = "com.opensymphony.workflow.designer.spi.DefaultFunctionPlugin";
97      }
98      FunctionPlugin funcImpl;
99      try
100     {
101       funcImpl = (FunctionPlugin)Class.forName(clazz).newInstance();
102     }
103     catch(Exception   e1)
104     {
105       e1.printStackTrace();
106       funcImpl = new DefaultFunctionPlugin();
107     }
108 
109     funcImpl.setFunction(config);
110 
111     // put the parameter
112     Map   args = new HashMap  ();
113     args.put("cell", cell);
114 
115     if(!funcImpl.editFunction(args))
116     {
117       // cancel
118       return null;
119     }
120     config = funcImpl.getFunction();
121     return config;
122   }
123 
124   abstract protected AbstractDescriptor getParent();
125 
126     abstract protected ConfigFunctionDescriptor getFunction();
127 }
128
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