Add simple XML parser

2 files changed, 77 insertions, 1 deletions

diff --git a/src/org/traccar/web/client/Traccar.java b/src/org/traccar/web/client/Traccar.java
index 8fa67ec..c596972 100644
--- a/src/org/traccar/web/client/Traccar.java
+++ b/src/org/traccar/web/client/Traccar.java
@@ -16,14 +16,50 @@
 package org.traccar.web.client;
 
 import org.traccar.web.client.controller.LoginController;
+import org.traccar.web.shared.model.XmlParser;
 
 import com.google.gwt.core.client.EntryPoint;
+import com.google.gwt.xml.client.DOMException;
+import com.google.gwt.xml.client.Document;
+import com.google.gwt.xml.client.Node;
+import com.google.gwt.xml.client.XMLParser;
+import com.sencha.gxt.widget.core.client.box.AlertMessageBox;
 
 public class Traccar implements EntryPoint, LoginController.LoginHandler {
 
     @Override
     public void onModuleLoad() {
-        new LoginController().login(this);
+        //new LoginController().login(this);
+    	
+    	try {
+    		String messageXml = "<a>1</a><b>2</b>";
+			//parse the XML document into a DOM
+    		String x = XmlParser.getElement(messageXml, "b");
+    		XmlParser.enumerateElements(messageXml);
+			
+			
+			
+			
+			
+			// find the sender's display name in an attribute of the <from> tag
+			/*Node fromNode = messageDom.getElementsByTagName("from").item(0);
+			String from = ((Element)fromNode).getAttribute("displayName");
+			fromLabel.setText(from);
+			
+			// get the subject using Node's getNodeValue() function
+			String subject = messageDom.getElementsByTagName("subject").item(0).getFirstChild().getNodeValue();
+			subjectLabel.setText(subject);
+			
+			// get the message body by explicitly casting to a Text node
+			Text bodyNode = (Text)messageDom.getElementsByTagName("body").item(0).getFirstChild();
+			String body = bodyNode.getData();
+			bodyLabel.setText(body);*/
+			
+			new AlertMessageBox("Info", "a=" + x).show();
+
+		} catch (DOMException e) {
+			new AlertMessageBox("Error", e.getMessage()).show();
+		}
     }
 
     @Override
diff --git a/src/org/traccar/web/shared/model/XmlParser.java b/src/org/traccar/web/shared/model/XmlParser.java
new file mode 100644
index 0000000..f19c75a
--- /dev/null
+++ b/src/org/traccar/web/shared/model/XmlParser.java
@@ -0,0 +1,40 @@
+package org.traccar.web.shared.model;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import com.google.gwt.regexp.shared.MatchResult;
+import com.google.gwt.regexp.shared.RegExp;
+
+public class XmlParser {
+	
+	public static List<String> enumerateElements(String input) {
+		List<String> list = new LinkedList<String>();
+		
+		RegExp parser = RegExp.compile("<([^/<][^<]*)>", "g");
+		MatchResult result = parser.exec(input);
+		while (result.getGroupCount() > 0) {
+			list.add(result.getGroup(1));
+			result = parser.exec(input);
+		}
+		
+		return list;
+	}
+	
+	public static String getElement(String input, String key) {
+		
+		StringBuilder pattern = new StringBuilder();
+		pattern.append("<").append(key).append(">");
+		pattern.append("([^<]*)");
+		pattern.append("</").append(key).append(">");
+		
+		RegExp parser = RegExp.compile(pattern.toString());
+		MatchResult result = parser.exec(input);
+		if (result.getGroupCount() > 0) {
+			return result.getGroup(1);
+		}
+		
+		return null;
+	}
+
+}