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1
56
57 import java.io.File  ;
58 import java.io.IOException ;
59 import java.io.PrintStream ;
60 import java.util.Iterator ;
61 import java.util.List ;
62 import org.jdom.Document;
63 import org.jdom.Element;
64 import org.jdom.JDOMException;
65 import org.jdom.input.SAXBuilder;
66 import org.jdom.output.XMLOutputter;
67
68
76 public class WarReader {
77
78 public static void main(String [] args) throws IOException , JDOMException {
79 if (args.length != 1) {
80 System.err.println("Usage: java WarReader [web.xml]");
81 return;
82 }
83 String filename = args[0];
84 PrintStream out = System.out;
85
86 SAXBuilder builder = new SAXBuilder();
87 Document doc = builder.build(new File (filename));
88
89 Element root = doc.getRootElement();
91
92 List servlets = root.getChildren("servlet");
94 out.println("This WAR has "+ servlets.size() +" registered servlets:");
95 Iterator i = servlets.iterator();
96 while (i.hasNext()) {
97 Element servlet = (Element) i.next();
98 out.print("\t" + servlet.getChild("servlet-name")
99 .getTextTrim() +
100 " for " + servlet.getChild("servlet-class")
101 .getTextTrim());
102 List initParams = servlet.getChildren("init-param");
103 out.println(" (it has " + initParams.size() + " init params)");
104 }
105
106 List securityRoles = root.getChildren("security-role");
108 if (securityRoles.size() == 0) {
109 out.println("This WAR contains no roles");
110 }
111 else {
112 Element securityRole = (Element) securityRoles.get(0);
113 List roleNames = securityRole.getChildren("role-name");
114 out.println("This WAR contains " + roleNames.size() + " roles:");
115 i = roleNames.iterator();
116 while (i.hasNext()) {
117 Element e = (Element) i.next();
118 out.println("\t" + e.getTextTrim());
119 }
120 }
121
122 List distrib = root.getChildren("distributed");
124 if (distrib.size() == 0) {
125 out.println("This WAR is not distributed");
126 } else {
127 out.println("This WAR is distributed");
128 }
129 }
130 }
131
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Java API By Example, From Geeks To Geeks.