Document DBXMLPARSER.JAVA encapsulates the operation of the XML file.
Import javax.xml.parsers. *;
Import org.w3c.dom. *;
Import org.xml.sax. *;
Import java.io. *;
Public Class DbxmlParser
{
STATIC STRING XMLFILE;
Public dbxmlparser (String filename)
{
XMLFILE = filename;
}
Public static element loadingdocument ()
{
Try
{
//factory
DocumentBuilderFactory dcfactory = documentbuilderfactory.newinstance ();
// Document constructor
DocumentBuilder DB = dcfactory.NewDocumentBuilder ();
// Context document
Document doc = db.parse (XMLFile);
/ Root elements
Element root = doc.getdocumentelement ();
Return root;
} catch (ParserConfigurationException E) {
System.out.println ("ParserConfigurationException");
E.PrintStackTrace ();
} catch (ioexception e) {
System.out.println ("IOEXCEPTION");
E.PrintStackTrace ();
} catch (saxException e) {
System.out.println ("SAXException");
E.PrintStackTrace ();
} catch (exception e) {
E.PrintStackTrace ();
}
Return NULL;
}
Public connpara getsource ()
{
Element root = loadingDocument ();
IF (root == null) {return null;}
Nodelist nodes = root.getElementsBytagname ("Source");
IF (Nodes.getLength ()> 0)
{
Node node = nodes.Item (0);
String connclass = getChildElementValue (Node, "Class");
String url = getChildElementValue (Node, "URL");
String username = getChildElementValue (Node, "User");
String password = getChildElementValue (Node, "Password");
Return New Connpara (CONNCLASS, URL, Username, Password);
}
Return NULL;
}
Public connpara getDest ()
{
Element root = loadingDocument ();
IF (root == null) Return NULL;
Nodelist nodes = root.getElementsBytagname ("dest");
IF (Nodes.getLength ()> 0)
{
Node node = nodes.Item (0);
String connclass = getChildElementValue (Node, "Class"); string url = getChildElementValue (Node, "URL");
String username = getChildElementValue (Node, "User");
String password = getChildElementValue (Node, "Password");
Return New Connpara (CONNCLASS, URL, Username, Password);
}
Return NULL;
}
// Get the value of the child element
Private string getChildElementValue (Node Node, String Subtagname)
{
String Returnstring = ""
IF (Node! = NULL)
{
Nodelist children = node.getchildnodes ();
For (int innerloop = 0; innerloop { Node child = children.item (innerloop); IF (child == null || child.getnodename () == null ||! child.getnodename (). Equals (subtagname)) CONTINUE; Node GrandChild = child.getfirstchild (); IF (grandchild.getnodevalue ()! = null) Return grandchild.getnodeValue (); } } Return Returnstring; } }
