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1 package com.opensymphony.webwork.webFlow.model;
2
3 import java.io.IOException  ;
4 import java.util.ArrayList ;
5 import java.util.Iterator ;
6 import java.util.List ;
7
8
13 public class SubGraph implements Render {
14 protected String name;
15 protected SubGraph parent;
16 protected List subGraphs;
17 protected List nodes;
18
19 public SubGraph(String name) {
20 this.name = name;
21 this.subGraphs = new ArrayList ();
22 this.nodes = new ArrayList ();
23 }
24
25 public String getName() {
26 return name;
27 }
28
29 public void addSubGraph(SubGraph subGraph) {
30 subGraph.setParent(this);
31 subGraphs.add(subGraph);
32 }
33
34 public void setParent(SubGraph parent) {
35 this.parent = parent;
36 }
37
38 public void addNode(WebFlowNode node) {
39 node.setParent(this);
40 Graph.nodeMap.put(node.getFullName(), node);
41 nodes.add(node);
42 }
43
44 public void render(IndentWriter writer) throws IOException {
45 writer.write("subgraph cluster_" + getPrefix() + " {", true);
47 writer.write("color=grey;");
48 writer.write("fontcolor=grey;");
49 writer.write("label=\"" + name + "\";");
50
51 for (Iterator iterator = subGraphs.iterator(); iterator.hasNext();) {
53 SubGraph subGraph = (SubGraph) iterator.next();
54 subGraph.render(new IndentWriter(writer));
55 }
56
57 for (Iterator iterator = nodes.iterator(); iterator.hasNext();) {
59 WebFlowNode webFlowNode = (WebFlowNode) iterator.next();
60 webFlowNode.render(writer);
61 }
62
63 writer.write("}", true);
65 }
66
67 public String getPrefix() {
68 if (parent == null) {
69 return name;
70 } else {
71 String prefix = parent.getPrefix();
72 if (prefix.equals("")) {
73 return name;
74 } else {
75 return prefix + "_" + name;
76 }
77 }
78 }
79
80 public SubGraph create(String namespace) {
81 if (namespace.equals("")) {
82 return this;
83 }
84
85 String [] parts = namespace.split("\\/");
86 SubGraph last = this;
87 for (int i = 0; i < parts.length; i++) {
88 String part = parts[i];
89 if (part.equals("")) {
90 continue;
91 }
92
93 SubGraph subGraph = findSubGraph(part);
94 if (subGraph == null) {
95 subGraph = new SubGraph(part);
96 last.addSubGraph(subGraph);
97 }
98
99 last = subGraph;
100 }
101
102 return last;
103 }
104
105 private SubGraph findSubGraph(String name) {
106 for (Iterator iterator = subGraphs.iterator(); iterator.hasNext();) {
107 SubGraph subGraph = (SubGraph) iterator.next();
108 if (subGraph.getName().equals(name)) {
109 return subGraph;
110 }
111 }
112
113 return null;
114 }
115 }
116 |
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