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1
2
4 import java.io.FileReader  ;
5 import java.io.IOException ;
6 import java.io.StringReader ;
7
8 import java.io.FileInputStream ;
9 import java.io.InputStreamReader ;
10
11
12 import org.xmlpull.v1.XmlPullParser;
13 import org.xmlpull.v1.XmlPullParserException;
14 import org.xmlpull.v1.XmlPullParserFactory;
15
16
21 public class MyXmlPullApp
22 {
23
24 public final static String SAMPLE_XML =
25 "<?xml version=\"1.0\"?>\n"+
26 "\n"+
27 "<poem xmlns=\"http://www.megginson.com/ns/exp/poetry\">\n"+
28 "<title>Roses are Red</title>\n"+
29 "<l>Roses are red,</l>\n"+
30 "<l>Violets are blue;</l>\n"+
31 "<l>Sugar is sweet,</l>\n"+
32 "<l>And I love you.</l>\n"+
33 "</poem>";
34
35 public static void main (String args[])
36 throws XmlPullParserException, IOException
37 {
38 XmlPullParserFactory factory = XmlPullParserFactory.newInstance(
39 System.getProperty(XmlPullParserFactory.PROPERTY_NAME), null);
40 factory.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
42
43 XmlPullParser xpp = factory.newPullParser();
44 System.out.println("parser implementation class is "+xpp.getClass());
45
46 MyXmlPullApp app = new MyXmlPullApp();
47
48 if(args.length == 0) {
49 System.out.println("Parsing simple sample XML"); xpp.setInput( new StringReader ( SAMPLE_XML ) );
51 app.processDocument(xpp);
52 } else {
53 for (int i = 0; i < args.length; i++) {
54 System.out.println("Parsing file: "+args[i]);
55 xpp.setInput ( new FileReader ( args [i] ) );
56 app.processDocument(xpp);
59 }
60 }
61 }
62
63
64 public void processDocument(XmlPullParser xpp)
65 throws XmlPullParserException, IOException
66 {
67 int eventType = xpp.getEventType();
68 do {
69 if(eventType == xpp.START_DOCUMENT) {
70 System.out.println("Start document");
71 } else if(eventType == xpp.END_DOCUMENT) {
72 System.out.println("End document");
73 } else if(eventType == xpp.START_TAG) {
74 processStartElement(xpp);
75 } else if(eventType == xpp.END_TAG) {
76 processEndElement(xpp);
77 } else if(eventType == xpp.TEXT) {
78 processText(xpp);
79 }
80 eventType = xpp.next();
81 } while (eventType != xpp.END_DOCUMENT);
82 }
83
84
85 public void processStartElement (XmlPullParser xpp)
86 {
87 String name = xpp.getName();
88 String uri = xpp.getNamespace();
89 if ("".equals (uri)) {
90 System.out.println("Start element: " + name);
91 } else {
92 System.out.println("Start element: {" + uri + "}" + name);
93 }
94 }
95
96
97 public void processEndElement (XmlPullParser xpp)
98 {
99 String name = xpp.getName();
100 String uri = xpp.getNamespace();
101 if ("".equals (uri))
102 System.out.println("End element: " + name);
103 else
104 System.out.println("End element: {" + uri + "}" + name);
105 }
106
107 int holderForStartAndLength[] = new int[2];
108
109 public void processText (XmlPullParser xpp) throws XmlPullParserException
110 {
111 char ch[] = xpp.getTextCharacters(holderForStartAndLength);
112 int start = holderForStartAndLength[0];
113 int length = holderForStartAndLength[1];
114 System.out.print("Characters: \"");
115 for (int i = start; i < start + length; i++) {
116 switch (ch[i]) {
117 case '\\':
118 System.out.print("\\\\");
119 break;
120 case '"':
121 System.out.print("\\\"");
122 break;
123 case '\n':
124 System.out.print("\\n");
125 break;
126 case '\r':
127 System.out.print("\\r");
128 break;
129 case '\t':
130 System.out.print("\\t");
131 break;
132 default:
133 System.out.print(ch[i]);
134 break;
135 }
136 }
137 System.out.print("\"\n");
138 }
139 }
140
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