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1
21
22 package nu.xom.samples;
23
24 import java.io.IOException  ;
25
26 import nu.xom.Builder;
27 import nu.xom.Element;
28 import nu.xom.NodeFactory;
29 import nu.xom.Nodes;
30 import nu.xom.ParsingException;
31
32
33
42 public class StreamingNodeLister extends NodeFactory {
43
44 private Nodes empty = new Nodes();
45
46 public static void main(String [] args) {
47
48 if (args.length == 0) {
49 System.out.println(
50 "Usage: java nu.xom.samples.StreamingNodeLister URL"
51 );
52 return;
53 }
54
55 Builder builder = new Builder(new StreamingNodeLister());
56
57 try {
58 builder.build(args[0]);
59 }
60 catch (ParsingException ex) {
62 System.out.println(args[0] + " is not well-formed.");
63 System.out.println(ex.getMessage());
64 }
65 catch (IOException ex) {
66 System.out.println(ex);
67 }
68
69 }
70
71 private int depth = 0;
72
73 public Nodes makeComment(String data) {
74 printSpaces();
75 System.out.println("Comment");
76 return empty;
77 }
78
79 public Nodes makeText(String data) {
80 printSpaces();
81 System.out.println("Text");
82 return empty;
83 }
84
85 public Element startMakingElement(String name, String namespace) {
86 depth++;
87 printSpaces();
88 System.out.println("Element: " + name);
89 return super.startMakingElement(name, namespace);
90 }
91
92 public Nodes finishMakingElement(Element element) {
93 depth--;
94 return new Nodes(element);
95 }
96
97 public Nodes makeDocType(String rootElementName,
98 String publicID, String systemID) {
99 System.out.println("DOCTYPE");
100 return empty;
101 }
102
103 public Nodes makeProcessingInstruction(
104 String target, String data) {
105 printSpaces();
106 System.out.println("Processing instruction: " + target);
107 return empty;
108 }
109
110 private void printSpaces() {
111
112 for (int i = 0; i < depth; i++) {
113 System.out.print(' ');
114 }
115
116 }
117
118 }
119 |
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