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1 package com.opensymphony.workflow.designer;
2
3 import java.awt.*;
4 import java.io.InputStream  ;
5 import java.io.PrintWriter ;
6 import java.util.*;
7 import javax.xml.parsers.DocumentBuilder ;
8 import javax.xml.parsers.DocumentBuilderFactory ;
9
10 import com.opensymphony.workflow.loader.XMLUtil;
11 import org.w3c.dom.Document ;
12 import org.w3c.dom.Element ;
13 import org.w3c.dom.NodeList ;
14
15 public class Layout
16 {
17 private String url;
18
19 private Collection entries = new ArrayList();
20 private Map allCells = new HashMap();
21 private Map results = new HashMap();
22
23
27 private Map cellsByType = new HashMap();
28
29 public Layout()
30 {
31 }
32
33 public void setAllEntries(Collection entries)
34 {
35 this.entries = entries;
36 }
37
38 public String getUrl()
39 {
40 return url;
41 }
42
43 public void setUrl(String url)
44 {
45 this.url = url;
46 }
47
48 public Layout(InputStream in)
49 {
50 DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
51 dbf.setNamespaceAware(true);
52 DocumentBuilder db;
53 try
54 {
55 db = dbf.newDocumentBuilder();
56 Document doc;
57 doc = db.parse(in);
58
59 NodeList mActivitycell = doc.getElementsByTagName("cell");
60 for(int k = 0; k < mActivitycell.getLength(); k++)
61 {
62 Element element = (Element )mActivitycell.item(k);
63 CellPosition pos = new CellPosition(element);
64 Rectangle bound = pos.getBounds();
65 allCells.put(new Integer (pos.getId()), bound);
66 Map map = (Map)cellsByType.get(pos.getType());
67 if(map==null)
68 {
69 map = new HashMap();
70 cellsByType.put(pos.getType(), map);
71 }
72 map.put(new Integer (pos.getId()), bound);
73 }
74 NodeList list = doc.getElementsByTagName("connector");
75 for(int k = 0; k < list.getLength(); k++)
76 {
77 Element element = (Element )list.item(k);
78 ResultPosition pos = new ResultPosition(element);
79 Point p = pos.getLabelPosition();
80 results.put(new Integer (pos.getId()), p);
81 }
82 }
83 catch(Exception e)
84 {
85 e.printStackTrace();
86 }
87 }
88
89 public void writeXML(PrintWriter out, int indent)
90 {
91 out.println("<?xml version=\"1.0\"?>");
92 XMLUtil.printIndent(out, indent++);
93 out.println("<layout>");
94
95 Iterator it = entries.iterator();
96 while(it.hasNext())
97 {
98 Object next = it.next();
99 if(next instanceof WorkflowCell)
100 {
101 WorkflowCell cell = (WorkflowCell)next;
102 CellPosition pos = new CellPosition(cell);
103 pos.writeXML(out, indent);
104 }
105 else
106 {
107 ResultEdge edge = (ResultEdge)next;
108 ResultPosition pos = new ResultPosition(edge);
109 pos.writeXML(out, indent);
110 }
111 }
112 XMLUtil.printIndent(out, --indent);
113 out.println("</layout>");
114 out.flush();
115 out.close();
116 }
117
118 public Rectangle getBounds(int key, String type)
119 {
120 if(type==null)
121 return (Rectangle)allCells.get(new Integer (key));
122 Map typeMap = (Map)cellsByType.get(type);
123 if(typeMap==null)
124 {
125 return null;
126 }
127 Rectangle bounds = (Rectangle)typeMap.get(new Integer (key));
128 return bounds;
129 }
130
131 public Point getLabelPosition(int resultKey)
132 {
133 return (Point)results.get(new Integer (resultKey));
134 }
135 }
136 |
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