Document.getDocumentElement()
Is there something wrong with the Document.getDocumentElement() method? All I get is a null value back when I call that method, even right after I parse it! How else can I convert the whole xml file that is in memory into a string without this code:
Document doc = db.parse("someFile.xml");
// some more code
String wholeXML = doc.getDocumentElement().toString();
but wholeXML is set to null! Any help would be greatly appreciated!
Hi there,
I've got the same problem, except it doesn't even work as a Java application... getDocumentElement() always returns null... any idea?
I checked the classpath and tried several versions of Document/Element, but without success.
Regards,
Laurent.
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Hi,
In code my directory is set to
File directory = new File("C:\\java_training\\com\\XMLtoExcel\\orm\\");
when parsing
public void generateExcel(ArrayList<String> array1) throws XPathExpressionException {
//System.out.println("in generateexcel " +array1);
for (int i = 0; i < array1.size(); i++) {
try {
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet spreadSheet = wb.createSheet("spreadSheet");
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IOException C:\java_training\com\XMLtoExcel\AccountBenefitActionSet.orm.xml (The system cannot find the file specified)
my directory structure is C:\java_training\com\XMLtoExcel\orm
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Pleases can I know how to resolve this issue.Hi,
When uploading files without filling in some required columns, the files would appear in “Checked Out Files” page.
To avoid this situation, you can modify that windows application to force users fill in the required columns or just define default values for those columns.
You can take a look at the link below for more information:
http://dlairman.wordpress.com/2013/03/13/favorite-sharepoint-feature-this-week-manage-files-which-have-no-checked-in-version/
Best regards,
Patrick
Patrick Liang
TechNet Community Support -
Creating a node in an XML Document
Hi!
i need to insert a new element in an existing xml document. for example,
<bookinfo>
<book>
<bookname>A</bookname>
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<book>
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<author>D</author>
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In this document if i want to insert another element using Xpath, say,<publisher> in <book> node, how to insert it.
I'm using DOM parser for parsing the xml file.
Any help to solve this issue appreciated.
Thanks in advance.final class Foo {
private static final String MARKUP =
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"</book>\n" +
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private Foo() {
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public static final void main(final String[] args)
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String isbn = args.length > 0 ? args[0] : "1234";
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Document document = ... // Initialize somehow
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Hi
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<Name>Bob</Name>
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Here is the XML document before cleaning
INFO: Clean CamMessage=
<?xml version='1.0' encoding='UTF-8'?>
<CamMessage>
<originator name="CLARIFYCRM" version="1.0"/><security><key>rO0ABXNyACFjb20uY2luZ3VsYXIuY2FtLmF1dGguU2VjdXJpdHlLZXkhdeFvAoQflwIABEoADGNy
ZWF0aW9uVGltZUoAB2V4cERhdGVMAApjbGllbnRUeXBldAARTGphdmEvbGFuZy9DbGFzcztMAAh1
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</CamMessage>
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<?xml version='1.0' encoding='UTF-8'?>
<CamMessage>
<originator name="CLARIFYCRM" version="1.0"/><security><key>rO0ABXNyACFjb20uY2luZ3VsYXIuY2FtLmF1dGguU2VjdXJpdHlLZXkhdeFvAoQflwIABEoADGNy
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Code to unmarshal
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
unmarshaller.setValidating(false);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
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Read an XML file with java: Document to Node conversion
Hello,
I want to read an XML file and convert data into a Node instance because I need this for an XForm application.
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FileInputStream inXML = new FileInputStream(fileName);
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DocumentBuilder builder;
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DocumentBuilderFactory factory =
DocumentBuilderFactory.newInstance();
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Check java on users PC and give message
The following code has been written with Java 1.4 and works great, but if a user has Java 1.3 they get an error message and if a user has Java 1.2 nothing happens at all. Is there a way to check if the user is using a version older than 1.4 and if so pop up a message telling them they need to download a newer version of Java?
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.List;
import java.io.*;
import java.util.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
import org.w3c.dom.*;
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private int indentation = -1;
JPanel panel = new JPanel();
JTextArea jta = new JTextArea(
//Instructions for user
"For a successful buddy list migration do the following:\n"
+ "1. Save your current Sametime Buddy List to your PC.\n "
+ "The default location should be: C:/Program Files/Lotus/Sametime Client.\n"
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+ " B. Click on People\n"
+ " C. Click on Save List.\n"
+ " D. Save as your first.last.dat\n"
+ " Ex. john.doe.dat\n"
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JButton browse = new JButton("Continue");
JButton exit = new JButton("Exit");
public Sametime() {
super("Sametime Buddy List Migration");
setSize(610, 245);
Container c = this.getContentPane();
c.add(panel);
browse.addActionListener(this);
exit.addActionListener(this);
panel.add(jta);
panel.add(browse);
panel.add(exit);
jta.setEditable(false);
setLookAndFeel();
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} //end Sametime
public class DATFilter extends javax.swing.filechooser.FileFilter {
public boolean accept(File f) {
//if it is a directory -- we want to show it so return true.
if (f.isDirectory())
return true;
String extension = getExtension(f);//get the extension of the file
//check to see if the extension is equal to "dat"
if ((extension.equals("dat")))
return true;
//default -- fall through. False is return on all
//occasions except:
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//b) the file's extension is what we are looking for.
return false;
}//end accept
public String getDescription() {
return "dat files";
}//end getDescription
* Method to get the extension of the file, in lowercase
private String getExtension(File f) {
String s = f.getName();
int i = s.lastIndexOf('.');
if (i > 0 && i < s.length() - 1)
return s.substring(i+1).toLowerCase();
return "";
}//end getExtension
}//end class DATFilter
public void actionPerformed(ActionEvent e) {
//Default Location for JFileChooser search
String error = "The file selected is not a .dat file!\n"
+ "Please select your recently saved .dat file and try again.";
JFileChooser fc = new JFileChooser("/Program Files/Lotus/Sametime Client");
fc.setFileFilter(new DATFilter());
fc.setFileSelectionMode( JFileChooser.FILES_ONLY);
String user = System.getProperty("user.name");// finds who the current user is
if (e.getSource() == browse) {
int returnVal = fc.showSaveDialog(Sametime.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
//if (fc.getSelectedFile().getName().equals(".dat")){
if (fc.getSelectedFile().getName().endsWith(".dat")){ // checks to see if selected file is .dat
}else{
JOptionPane.showMessageDialog(null, error, "Wrong File", JOptionPane.ERROR_MESSAGE);
return;
}//end else
try {
String[] contactArray = parseDatFile(fc.getSelectedFile());
Document document = createXMLDocument(contactArray);
saveToXMLFile(
document,
new File(
"C:/Documents and Settings/" + user +"/My Documents/OLCS/",// looks for directory for list
"contacts-list_migration.ctt"));
} catch (Exception exc) {
File f = new File("C:/Documents and Settings/" + user +"/My Documents/OLCS/");// setting directory for list if not there
boolean yes = true;
yes = f.mkdir();// creating directory
try {
String[] contactArray = parseDatFile(fc.getSelectedFile());
Document document = createXMLDocument(contactArray);
saveToXMLFile(
document,
new File(
"C:/Documents and Settings/" + user +"/My Documents/OLCS/",// used only if the directory didn't exist
"contacts-list_migration.ctt"));
//exc.printStackTrace();// not sure if this is needed?
} catch (Exception exc1) {
exc1.printStackTrace();
}//end inner catch
}// end catch
}// end if
if(returnVal==JFileChooser.CANCEL_OPTION){
String Warning = "You did not migrate your Sametime buddy list at this time.";
JOptionPane.showMessageDialog(null, Warning, "Migration Canceled", JOptionPane.WARNING_MESSAGE);
return;
}else{
String thankyou = "Thank You for Migrating your Sametime buddy list to OLCS"
+ "\nYour new OLCS buddy list has been saved to:"
+ "\nC:/Documents and Settings/" + user +"/My Documents/OLCS"
+ "\n as: Contact-List_migration.ctt"
+ "\n\n To be able to use Contact-List_migration.ctt for Windows Messenger:"
+ "\n1. Log into Windows Messenger."
+ "\n2. Click on File"
+ "\n3. Click on 'Import Contacts from a Saved File...'"
+ "\n4. Open OLCS in My Documents"
+ "\n5. Click on 'Contact-list_migration.ctt'"
+ "\n6. Click Open to import the list."
+ "\n A window will pop up confirming that you want to add all of the contacts"
+ "\n Click 'yes'"
+ "\n Your buddy list is ready to be used.";
JOptionPane.showMessageDialog(null, thankyou, "Migration Completed", JOptionPane.INFORMATION_MESSAGE);//Change this when defualt directory is known.
}//end if else statement
} //end if
System.exit( 0 );
if (e.getSource() == exit) {
System.exit( 0 );
} //end if
} //end actionPerformed
String[] parseDatFile(File datFile)
throws Exception {
List list = new ArrayList();
BufferedReader br = new BufferedReader(new FileReader(datFile));
String line;
while ((line = br.readLine()) != null) {
line = line.trim();
if (line.indexOf("U") != 0)
continue;
int p = line.indexOf("::");
if (p == -1)
continue;
line = line.substring(p + 2).trim();
if (line.indexOf("AOL") == 0)
continue;
p = line.indexOf(",");
if (p != -1)
line = line.substring(0, p);
line = line.trim() + "@mci.com";
if (list.indexOf(line) == -1)
list.add(line);
}//end while
br.close();
String[] contactArray = new String[list.size()];
list.toArray(contactArray);
return contactArray;
}// end String
// setting up the XML file
Document createXMLDocument(String[] contactArray) throws Exception {
DocumentBuilderFactory dBF = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = dBF.newDocumentBuilder();
DOMImplementation domImpl = builder.getDOMImplementation();
Document document = domImpl.createDocument(null, "messenger", null);
Element root = document.getDocumentElement();
Element svcElm = document.createElement("service");
Element clElm = document.createElement("contactlist");
svcElm.setAttribute("name", "Microsoft RTC Instant Messaging");
svcElm.appendChild(clElm);
root.appendChild(svcElm);
for (int i = 0; i < contactArray.length; i++) {
Element conElm = document.createElement("contact");
Text conTxt = document.createTextNode(contactArray);
conElm.appendChild(conTxt);
clElm.appendChild(conElm);
}//end for
return document;
}// end Document
void saveToXMLFile(Document document, File xmlFile) throws Exception {
OutputStream os =
new BufferedOutputStream(new FileOutputStream(xmlFile));
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");//puts information on seperate lines
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");//gives the XML file indentation
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(os);
transformer.transform(source, result);
os.close();
}//end saveToXMLFile
public static void main(String[] args) {
Sametime st = new Sametime();
ImageIcon picIcon = new ImageIcon(st.getClass().getResource("/ST_Migration/images/mci.gif"));//Change when default is known!
st.setIconImage(picIcon.getImage());
} //end main
private void setLookAndFeel() {
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
SwingUtilities.updateComponentTreeUI(this);
} catch (Exception e) {
System.err.println("Could not use Look and Feel: " + e);
} //end catch
} //end void setLookAndFeel
} //end public class SametimeWell, if you don't want to use Package.isCompatibleWith and the version numbers will always be of the form x.y where y is at most one digit, you can use Double.parseDouble() and then compare the numbers. Otherwise you need to write a method of your own.
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Can't see this topic in the forum
Hi,
I thought I posted this ttopic yesterday - but icant see it in the forum; if it is there I apoligise in advance.
here it is:
Hi,
I got some great help before on this & am hoping for a little direction. I have a class that calculates the tax from an xml like below:
<Taxes>
<Tax TaxCode='code1' Amount='101.00'/>
<Tax TaxCode='code2' Amount='102.00'/>
<Tax TaxCode='code3' Amount='103.00'/>
<Tax TaxCode='code4' Amount='104.00'/>
<Tax TaxCode='code5' Amount='105.00'/>
</Taxes>Now, my method below, gets the last 3 values and sums them and applies the code "XT" to it & returns a HashMap that looks like:
{code1 = 101.00, code = 102. 00, XT = 312.00}.
public static HashMap getTaxAmounts(String xml) throws Exception {
HashMap taxes = new HashMap();
DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
domFactory.setNamespaceAware(true); // never forget this!
DocumentBuilder builder = domFactory.newDocumentBuilder();
Document doc = builder.parse(xml);
XPathFactory factory = XPathFactory.newInstance();
XPath xpath = factory.newXPath();
XPathExpression expr = xpath.compile("//Tax/@TaxCode");
Object result = expr.evaluate(doc, XPathConstants.NODESET);
NodeList nodes = (NodeList) result;
XPathExpression expr1 = xpath.compile("//Tax/@Amount");
Object result1 = expr1.evaluate(doc, XPathConstants.NODESET);
NodeList nodes1 = (NodeList) result1;
for ( int i = 0; i < nodes1.getLength() && (i<2); i++) {
taxes.put( nodes.item(i).getNodeValue(), nodes1.item(i).getNodeValue());
if( nodes1.getLength() >= 3){
float total = 0.00f;
for ( int i = 2; i < nodes1.getLength(); i++) {
total += Float.parseFloat(nodes1.item(i).getNodeValue());
String xt = nodes.item(2).getNodeValue();
xt = "XT";
taxes.put( xt, total);
return taxes;
/code]
all that's fine - but now I have to replace the tags in the original XML file so that they look like:<Taxes>
<Tax TaxCode='code1' Amount='101.00'/>
<Tax TaxCode='code2' Amount='102.00'/>
<Tax TaxCode='XT' Amount='312.00'/>
</Taxes>
any ideas how I would this???what am I doing wrong here? i'm just trying to delete the last 2 Tax nodes? what if I want to replace them with the hashmap values - I can't even get the remove bit working??
public static String buildDom(String xml, HashMap taxes) throws Exception
String newDocument = xml;
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse(xml);
HashMap newMap = getTaxAmounts(dd);
Element elem = document.getDocumentElement();
NodeList taxList = elem.getElementsByTagName( "Tax" );
int count1 = taxList.getLength();
int count2 = newMap.size();
for ( int i = count2; i < count1; i++ ) {
Element Tax = (Element) taxList.item( i );
System.err.println("Tax == "+Tax);
document.removeChild( taxList.item(i));
} catch (ParserConfigurationException pce) {
// Parser with specified options can't be built
pce.printStackTrace();
return newDocument;
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How to access Payload in XI Adapter Module
Hello,
I have to enhance a adapter module in xi very urgently. Target is to access a node of the XML payload and retrieve the corresponding value.
This is how my document looks like:
<mt_test>
<element1>
< > </ >
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<element2>
<LOG_NO>4711 </LOG_NO>
<element2>
</mt_test>
I need now access the element <LOG_NO>. This can only appear one time in the whole xml document. My code that I did so far (inside the process method) to retrieve this element is like this:
XMLPayload xmlpayload = msg.getDocument();
DocumentBuilderFactory factory = null;
factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
Document document = builder.parse ((InputStream)xmlpayload.getInputStream());
Element rootNode = document.getDocumentElement();
< and now I have no clue anymore :-/ >
May you give me an example how to access the node <LOG_NO> and save the corresponding value in a String variable?
I would be really thankful.
Greetings and thanks in advance,
TobiasHi,
>>>found no solution with PI Standard Import to support FTP inside the Adapter Module
why would you? file adapter supports FTP - so you don't need it
>>>In order to use FTP library, is there any standard library available or supported by SUN.
you can use any java ftp client available on google
Regards,
Michal Krawczyk -
Extracting elements from an xml string - org.apache.xerces.dom.DeferredText
Hello all,
I am new to xml, and I thought I had a handle on things until I got this problem...I am getting an xml string from the body of an e-mail message, and then I am trying to extract elements out of it. Here is an example xml string:
<?xml version="1.0" encoding="UTF-8"?>
<filterRoot>
<filter action="MOVE" bool="AND" name="My Saved Filter" target="Deleted Items">
<condition attribute="TO" bool="AND" contains="CONTAINS">
<value>[email protected]</value>
<value>[email protected]</value>
<value>[email protected]</value>
<value>[email protected]</value>
<value>[email protected]</value>
</condition>
</filter>
</filterRoot>I am trying to extract the <filter> element out and store it into a Vector of Elements (called, not surprisingly, filters). However, I am getting a class cast exception:
java.lang.ClassCastException: org.apache.xerces.dom.DeferredTextImplIt is being called from where I trying to extract the <filter> in this way:
filterRoot = doc.getDocumentElement(); // get topmost element
NodeList list = filterRoot.getChildNodes();
Vector newFilters = new Vector();
debug("There are "+list.getLength()+" filters in document");
for(int i=0; i<list.getLength(); i++) {
Node n = list.item(i);
debug("Node "+i+" getNodeValue() is "+n.getNodeValue());
Element temp = (Element)n;
newFilters.add(temp);
}Perhaps my question is, how do I correctly get hold of the <filter> node so that I may cast it as an Element?
thanks,
RizYes, I already knew that it is not a bug.
But, I got next step problem.
I put "false" to "include-ignorable-whitespace" feature in xerces parser.
But, I still found unnecessary TextNodes in my parser object.
Feature link : http://xerces.apache.org/xerces-j/features.html.
I use xerces-2_8_0.
DOMParser parser = new DOMParser();
parser.setFeature("http://apache.org/xml/features/dom/include-ignorable-whitespace", false);
parser.parse(inputSource);
document = ps.getDocument();
System.out.println(document.getDocumentElement().getChildNodes().length()); // still wrong lengthIs tehre any example of usage this feature?
What is default defination of white-space "\n "(enter with one space) or " "(juz white space) or something else?
Thanks, -
<?xml version="1.0" encoding="UTF-8"?>
<configuration xmlns="http://java.sun.com/xml/ns/jax-rpc/ri/config">
<wsdl
location="AvalonWebService.wsdl"
packageName="com.package.stubs "/>
</configuration>
C:\jwsdp-2.0\jaxrpc\bin\wscompile.bat -gen:client -keep -verbose -classpath build config.xml
import javax.xml.rpc.Stub;
import com.package.stubs.AnnwynServicePortType;
import com.package.stubs.AnnwynService_Impl;
import com.package.stubs.ProcessResponseSync;
public class Ws
public String getResponsePayload(String username,String password,String headerXML,String payloadXML,String path)
String p="";
try
AnnwynServicePortType port=null;
ProcessResponseSync res=null;
String endpointAddress = path+"/biocap/ws/AnnwynServicePort/AnnwynServicePort";
try
javax.xml.rpc.Stub stub = (Stub) (new AnnwynService_Impl().getAnnwynServicePort());
stub._setProperty(javax.xml.rpc.Stub.ENDPOINT_ADDRESS_PROPERTY,endpointAddress);
port = (AnnwynServicePortType)stub;
stub._setProperty(Stub.USERNAME_PROPERTY,username);
stub._setProperty(Stub.PASSWORD_PROPERTY,password);
catch(Exception ex)
System.out.println("Authentication error in Ws.java : "+ex.toString());
res=port.processSync(headerXML,payloadXML);
p=res.getPayloadXML();
catch(Exception e)
System.out.println("Error in Ws.java : "+e.toString());
return p;
--------------------------------------for parsing xml file------------------------------------------------
import java.io.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;
import java.util.Hashtable;
public class XMLParse
Document dom;
NodeList nl;
Hashtable countries=new Hashtable();
//int key=0;
public Hashtable getNames(String payloadXML,String attrib,String id)
//public Hashtable getNames(byte bb[])
try
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
byte bb[]=payloadXML.getBytes();
//java.io.ByteArrayInputStream bais=new java.io.ByteArrayInputStream(bb);
java.io.InputStream is=new java.io.ByteArrayInputStream(bb);
dom = db.parse(is);
Element docEle = dom.getDocumentElement();
nl=docEle.getElementsByTagName("Messages");
for ( int k = 0; k <nl.getLength(); k++ )
NodeList childNodeList = nl.item(k).getChildNodes();
for(int i=0;i<(childNodeList.getLength())-1;i++)
i=i+1;
Node childNode = childNodeList.item(i);
String CountryName=((Element)childNodeList.item(i)).getAttribute(attrib);
String idValue=((Element)childNodeList.item(i)).getAttribute(id);
countries.put(idValue,CountryName);
//key++;
catch(Exception e)
{System.out.println("Exception in initParser:------>"+e);}
return countries;
// public static void main(String args[]) throws Exception
// try
// FileInputStream fis=new FileInputStream("D:/Jagadeesan/Jagadeesan_Examples/JavaApplication6/src/parser/out.xml");
// int length=fis.available();
// byte b[]=new byte[length];
// int len;
// while((len=fis.read(b)) >= 0)
// Hashtable h=new XMLParse().getNames(b);
// System.out.println("----Countries----\n");
// for(int i=0;i<h.size();i++)
// System.out.println(" "+h.get(new Integer(i)));
// System.out.println("\n-----------------");
// catch(Exception e)
// e.printStackTrace();
----------------------------for creating xml fie------------------------------------------------
import org.w3c.dom.*;
import org.apache.xerces.dom.DocumentImpl;
import org.apache.xerces.dom.DOMImplementationImpl;
import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.Serializer;
import org.apache.xml.serialize.SerializerFactory;
import org.apache.xml.serialize.XMLSerializer;
import java.io.*;
import org.w3c.dom.Attr;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.ProcessingInstruction;
import java.util.*;
public class payloadXML
public String getpayloadXML(Hashtable request_HT) throws Exception
Document document= new DocumentImpl();
Element root = document.createElement("Root");
// add child element
Node Messages_Node = create_Messages_Node(document,request_HT);
root.appendChild(Messages_Node);
// create attribute
Attr xmlns_xsd_Attribute = document.createAttribute("xmlns:xsd");
xmlns_xsd_Attribute.setValue("http://www.w3.org/2001/XMLSchema");
// append attribute to root element
root.setAttributeNode(xmlns_xsd_Attribute);
// create attribute
Attr xmlns_xsi_Attribute = document.createAttribute("xmlns:xsi");
xmlns_xsi_Attribute.setValue("http://www.w3.org/2001/XMLSchema-instance");
// append attribute to root element
root.setAttributeNode(xmlns_xsi_Attribute);
// create attribute
Attr localizationId_Attribute = document.createAttribute("localizationId");
localizationId_Attribute.setValue("en-GB");
// append attribute to root element
root.setAttributeNode(localizationId_Attribute);
// create attribute
Attr xmlns_Attribute = document.createAttribute("xmlns");
xmlns_Attribute.setValue("http://www.avalonbiometrics.com/biocap/Messages");
// append attribute to root element
root.setAttributeNode(xmlns_Attribute);
document.appendChild( root );
OutputFormat format = new OutputFormat( document ); //Serialize DOM
StringWriter stringOut = new StringWriter(); //Writer will be a String
XMLSerializer serial = new XMLSerializer( stringOut, format );
serial.asDOMSerializer(); // As a DOM Serializer
serial.serialize( document.getDocumentElement() );
//System.out.println( "STRXML = " + stringOut.toString()); //Spit out DOM as a String
return stringOut.toString();
public Node create_Messages_Node(Document document,Hashtable request_HT)
// create Msg:Messages element
Element Messages = document.createElement("Messages");
for(Enumeration key = request_HT.keys(); key.hasMoreElements();)
Object keyName=key.nextElement();
// create attribute
Attr Attribute_Name = document.createAttribute(keyName.toString());
Attribute_Name.setValue((request_HT.get(keyName).toString()));
// append attribute to Msg:Messages element
Messages.setAttributeNode(Attribute_Name);
return Messages;
----------------------for xml parsing---------------------------------------
import java.io.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;
import java.util.Hashtable;
public class XMLParseSeqNo
Document dom;
NodeList nl;
String seqNumber="";
public String getNames(String payloadXML)
try
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
byte bb[]=payloadXML.getBytes();
java.io.InputStream is=new java.io.ByteArrayInputStream(bb);
dom = db.parse(is);
Element docEle = dom.getDocumentElement();
nl=docEle.getElementsByTagName("Messages");
for ( int k = 0; k <nl.getLength(); k++ )
Element el = (Element)nl.item(k);
seqNumber= el.getAttribute("seqNumber");
catch(Exception e)
System.out.println("Exception in initParser:------>"+e);
return seqNumber;
}null
-
Parse of a xml file to an java object model
Hello,
I'm trying to do a program that receive an xml file and ought to create all the neccesary java objects according to the content of the parsed xml file.
I've all the class created for all the objects that could be present into the xml and the idea is to go down in the tree of nodes recursively until it returns nodes more simple. Then, I create the last object and while I come back of the recursively calls, I create the objects more complex until I reached to the main object.
Until now, I have part of this code, that is the one wich have to parse the parts of the xml.
public static void readFile(String root){
DocumentBuilderFactory factory = DocumentBuilderFactory
.newInstance();
try {
DocumentBuilder builder = factory.newDocumentBuilder();
Scanner scanner = new Scanner(new File(root)).useDelimiter("\\Z");
String contents = scanner.next();
scanner.close();
Document document = builder.parse(new ByteArrayInputStream(contents.getBytes()));
Node node = null;
NodeList nodes = null;
Element element = document.getDocumentElement();
System.out.println(element.getNodeName());
NodeList subNodes;
NamedNodeMap attributes;
//if (element.hasAttributes())
visitNodes(element);
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
private static void visitNodes (Node node){
for(Node childNode = node.getFirstChild(); childNode!=null;){
if (childNode.getNodeType() == childNode.DOCUMENT_NODE){
System.out.println("Document node Name " + childNode.getNodeName());
visitNodes(childNode);
}else if (childNode.getNodeType() == childNode.ELEMENT_NODE){
System.out.println("Node Name " + childNode.getNodeName());
if (childNode.hasAttributes()){
visitAttributes(childNode.getAttributes());
if (childNode.hasChildNodes()){
visitNodes(childNode);
}else if (childNode.getNodeType() == childNode.TEXT_NODE && !childNode.getNodeValue().contains("\n\t")){
System.out.println("Node value " + childNode.getNodeValue());
Node nextChild = childNode.getNextSibling();
childNode = nextChild;
private static void visitAttributes(NamedNodeMap attributes){
Node node;
for(int i = 0; i < attributes.getLength(); i++){
node = attributes.item(i);
System.out.print(node.getNodeName() + " ");
System.out.print(node.getNodeValue() + " ");
}I don't know the use of childNodeType. For example, I expected that the XML tags with childs in his structure, enter by the option NODE_DOCUMENT and the tags without childs by the ELEMENT_NODE.
But the most important problem I've found are the nodes [#text] because after one ELEMENT_NODE I always found this node and when I ask if the node hasChilds, always returns true by this node.
Has any option to obtain this text value, that finally I want to display without doing other recursively call when I enter into the ELEMENT_NODE option?
When one Node is of type DOCUMENT_NODE or DOCUMENT_COMMENT? My program always enter by the ELEMENT_NODE type
Have you any other suggestions? All the help or idea will be well received.
Thanks for all.Hello again,
My native language is Spanish and sorry by my English I attemp write as better I can, using my own knowledge and the google traductor.
I have solved my initial problem with the xml parser.
Firstly, I read the complete XML file, validated previously.
The code I've used is this:
public static String readCompleteFile (String root){
String content = "";
try {
Scanner scanner = new Scanner(new File(root)).useDelimiter("\\Z");
content = scanner.next();
scanner.close();
} catch (IOException e) {
e.printStackTrace();
return content;
}Now, I've the file in memory and I hope I can explain me better.
I can receive different types of XML that could be or not partly equals.
For this purpose I've created an external jar library with all the possible objects contained in my xml files.
Each one of this objects depend on other, until found leaf nodes.
For example, If I receive one xml with a scheme like the next:
<Person>
<Name>Juliet</Name>
<Father Age="30r">Peter</Father>
<Mother age="29">Theresa</Mother>
<Brother>
</Brother>
<Education>
<School>
</school>
</education>
</person>
<person>
</person>The first class, which initializes the parse, should selecting all the person tags into the file and treat them one by one. This means that for each person tag found, I must to call each subobject wich appears in the tag. using as parameter his own part of the tag and so on until you reach a node that has no more than values and or attributes. When the last node is completed I'm going to go back for completing the parent objects until I return to the original object. Then I'll have all the XML in java objects.
The method that I must implement as constructor in every object is similar to this:
public class Person{
final String[] SUBOBJETOS = {"Father", "Mother", "Brothers", "Education"};
private String name;
private Father father;
private Mother mother;
private ArrayList brothers;
private Education education;
public Person(String xml){
XmlUtil utilXml = new XmlUtil();
String xmlFather = utilXml.textBetweenXmlTags(xml, SUBOBJETOS[0]);
String xmlMother = utilXml.textBetweenXmlTags(xml, SUBOBJETOS[1]);
String xmlBrothers = utilXml.textBetweenMultipleXmlTags(xml, SUBOBJETOS[2]);
String xmlEducation = utilXml.textBetweenXmlTags(xml, SUBOBJETOS[3]);
if (!xmlFather.equals("")){
this.setFather(new Father(xmlFather));
if (!xmlMother.equals("")){
this.setMother(new Father(xmlMother));
if (!xmlBrothers.equals("")){
ArrayList aux = new ArrayList();
String xmlBrother;
while xmlBrothers != null && !xmlBrothers.equals("")){
xmlBrother = utilXml.textBetweenXmlTags(xmlBrothers, SUBOBJETOS[2]);
aux.add(new Brother(xmlBrother);
xmlBrothers = utilXml.removeTagTreated(xmlBrothers, SUBOBJETOS[2]);
this.setBrothers(aux);
if (!xmlEducation.equals("")){
this.setEducation(new Father(xmlEducation));
}If the object is a leaf object, the constructor will be like this:
public class Mother {
//Elements
private String name;
private String age;
public Mother(String xml){
XmlUtil utilXml = new XmlUtil();
HashMap objects = utilXml.parsearString(xml);
ArraysList objectsList = new ArrayList();
String[] Object = new String[2];
this.setName((String)objects.get("Mother"));
if (objects.get("attributes")!= null){
objectsList = objects.get("attributes");
for (int i = 0; i < objectsList.size();i++){
Object = objectsList.get(i);
if (object[0].equals("age"))
this.setAge(object[1]);
else
}Each class will have its getter and setter but I do not have implemented in the examples.
Finally, the parser is as follows:
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;
public class XmlUtil {
public HashMap parsearString(String contenido){
HashMap objet = new HashMap();
DocumentBuilderFactory factory;
DocumentBuilder builder;
Document document;
try{
if (content != null && !content.equals("")){
factory = DocumentBuilderFactory.newInstance();
builder = factory.newDocumentBuilder();
document = builder.parse(new ByteArrayInputStream(content.getBytes()));
object = visitNodes(document);
}else{
object = null;
} catch (ParserConfigurationException e) {
e.printStackTrace();
return null;
} catch (SAXException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
return object;
private HashMap visitNodes (Node node){
String nodeName = "";
String nodeValue = "";
ArrayList attributes = new ArrayList();
HashMap object = new HashMap();
Node childNode = node.getFirstChild();
if (childNode.getNodeType() == Node.ELEMENT_NODE){
nodeName = childNode.getNodeName();
if (childNode.hasAttributes()){
attributes = visitAttributes(childNode.getAttributes());
}else{
attributes = null;
nodeValue = getNodeValue(childNode);
object.put(nodeName, nodeValue);
object.put("attributes", attributes);
return object;
private static String getNodeValue (Node node){
if (node.hasChildNodes() && node.getFirstChild().getNodeType() == Node.TEXT_NODE && !node.getFirstChild().getNodeValue().contains("\n\t"))
return node.getFirstChild().getNodeValue();
else
return "";
private ArrayList visitAttributes(NamedNodeMap attributes){
Node node;
ArrayList ListAttributes = new ArrayList();
String [] attribute = new String[2];
for(int i = 0; i < attributes.getLength(); i++){
atribute = new String[2];
node = attributes.item(i);
if (node.getNodeType() == Node.ATTRIBUTE_NODE){
attribute[0] = node.getNodeName();
attribute[1] = node.getNodeValue();
ListAttributes.add(attribute);
return ListAttributes;
}This code functioning properly. However, as exist around 400 objects to the xml, I wanted to create a method for more easily invoking objects that are below other and that's what I can't get to do at the moment.
The code I use is:
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class UtilClasses {
public Object UtilClasses(String package, String object, String xml){
try {
Class class = Class.forName(package + "." + object);
//parameter types for methods
Class[] partypes = new Class[]{Object.class};
//Create method object . methodname and parameter types
Method meth = class.getMethod(object, partypes);
//parameter types for constructor
Class[] constrpartypes = new Class[]{String.class};
//Create constructor object . parameter types
Constructor constr = claseObjeto.getConstructor(constrpartypes);
//create instance
Object obj = constr.newInstance(new String[]{xml});
//Arguments to be passed into method
Object[] arglist = new Object[]{xml};
//invoke method!!
String output = (String) meth.invoke(dummyto, arglist);
System.out.println(output);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
return null;
}This is an example obtained from the Internet that I've wanted modified to my needs. The problem is that when the class calls this method to invoke the constructor and does not fail, this does not do what I expect, because it creates an empty constructor. If not, the parent class gives a casting error.
I hope that now have been more clear my intentions and that no one has fallen asleep reading this lengthy explanation.
greetings. -
How do I rewrite current code for java 1.3
I'm using the code below that is written for java 1.4. I have been told that the company can not push JRE 1.4 to the company, and that I need to write my code for java 1.3. I'm using org.w3c.dom for my create xml, etc.
Is there a java 1.3 option to the 1.4? Any help would be very appreciated.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.List;
import java.io.*;
import java.util.*;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;
import org.w3c.dom.*;
public class Sametime extends JFrame implements ActionListener {
private int indentation = -1;
JPanel panel = new JPanel();
JTextArea jta = new JTextArea(
//Instructions for user
"For a successful buddy list migration do the following:\n"
+ "1. Save your current Sametime Buddy List to your PC.\n "
+ "The default location should be: C:/Program Files/Lotus/Sametime Client.\n"
+ " A. Open the Sametime Client.\n"
+ " B. Click on People\n"
+ " C. Click on Save List.\n"
+ " D. Save as your first.last.dat\n"
+ " Ex. john.doe.dat\n"
+ "NOTE: If you have AOL contacts in your Sametime buddy list they will not be migrated.\n");
JButton browse = new JButton("Continue");
JButton exit = new JButton("Exit");
public Sametime() {
super("Sametime Buddy List Migration");
setSize(610, 245);
Container c = this.getContentPane();
c.add(panel);
browse.addActionListener(this);
exit.addActionListener(this);
panel.add(jta);
panel.add(browse);
panel.add(exit);
jta.setEditable(false);
setLookAndFeel();
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} //end Sametime
public class DATFilter extends javax.swing.filechooser.FileFilter {
public boolean accept(File f) {
//if it is a directory -- we want to show it so return true.
if (f.isDirectory())
return true;
String extension = getExtension(f);//get the extension of the file
//check to see if the extension is equal to "dat"
if ((extension.equals("dat")))
return true;
//default -- fall through. False is return on all
//occasions except:
//a) the file is a directory
//b) the file's extension is what we are looking for.
return false;
}//end accept
public String getDescription() {
return "dat files";
}//end getDescription
* Method to get the extension of the file, in lowercase
private String getExtension(File f) {
String s = f.getName();
int i = s.lastIndexOf('.');
if (i > 0 && i < s.length() - 1)
return s.substring(i+1).toLowerCase();
return "";
}//end getExtension
}//end class DATFilter
public void actionPerformed(ActionEvent e) {
//Default Location for JFileChooser search
String error = "The file selected is not a .dat file!\n"
+ "Please select your recently saved .dat file and try again.";
JFileChooser fc = new JFileChooser("/Program Files/Lotus/Sametime Client");
fc.setFileFilter(new DATFilter());
fc.setFileSelectionMode( JFileChooser.FILES_ONLY);
String user = System.getProperty("user.name");// finds who the current user is
if (e.getSource() == browse) {
int returnVal = fc.showSaveDialog(Sametime.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
//if (fc.getSelectedFile().getName().equals(".dat")){
if (fc.getSelectedFile().getName().endsWith(".dat")){ // checks to see if selected file is .dat
}else{
JOptionPane.showMessageDialog(null, error, "Wrong File", JOptionPane.ERROR_MESSAGE);
return;
}//end else
try {
String[] contactArray = parseDatFile(fc.getSelectedFile());
Document document = createXMLDocument(contactArray);
saveToXMLFile(
document,
new File(
"C:/Documents and Settings/" + user +"/My Documents/OLCS/",// looks for directory for list
"contacts-list_migration.ctt"));
} catch (Exception exc) {
File f = new File("C:/Documents and Settings/" + user +"/My Documents/OLCS/");// setting directory for list if not there
boolean yes = true;
yes = f.mkdir();// creating directory
try {
String[] contactArray = parseDatFile(fc.getSelectedFile());
Document document = createXMLDocument(contactArray);
saveToXMLFile(
document,
new File(
"C:/Documents and Settings/" + user +"/My Documents/OLCS/",// used only if the directory didn't exist
"contacts-list_migration.ctt"));
//exc.printStackTrace();// not sure if this is needed?
} catch (Exception exc1) {
exc1.printStackTrace();
}//end inner catch
}// end catch
}// end if
if(returnVal==JFileChooser.CANCEL_OPTION){
String Warning = "You did not migrate your Sametime buddy list at this time.";
JOptionPane.showMessageDialog(null, Warning, "Migration Canceled", JOptionPane.WARNING_MESSAGE);
return;
}else{
String thankyou = "Thank You for Migrating your Sametime buddy list to OLCS"
+ "\nYour new OLCS buddy list has been saved to:"
+ "\nC:/Documents and Settings/" + user +"/My Documents/OLCS"
+ "\n as: Contact-List_migration.ctt"
+ "\n\n To be able to use Contact-List_migration.ctt for Windows Messenger:"
+ "\n1. Log into Windows Messenger."
+ "\n2. Click on File"
+ "\n3. Click on 'Import Contacts from a Saved File...'"
+ "\n4. Open OLCS in My Documents"
+ "\n5. Click on 'Contact-list_migration.ctt'"
+ "\n6. Click Open to import the list."
+ "\n A window will pop up confirming that you want to add all of the contacts"
+ "\n Click 'yes'"
+ "\n Your buddy list is ready to be used.";
JOptionPane.showMessageDialog(null, thankyou, "Migration Completed", JOptionPane.INFORMATION_MESSAGE);//Change this when defualt directory is known.
}//end if else statement
} //end if
System.exit( 0 );
if (e.getSource() == exit) {
System.exit( 0 );
} //end if
} //end actionPerformed
String[] parseDatFile(File datFile)
throws Exception {
List list = new ArrayList();
BufferedReader br = new BufferedReader(new FileReader(datFile));
String line;
while ((line = br.readLine()) != null) {
line = line.trim();
if (line.indexOf("U") != 0)
continue;
int p = line.indexOf("::");
if (p == -1)
continue;
line = line.substring(p + 2).trim();
if (line.indexOf("AOL") == 0)
continue;
p = line.indexOf(",");
if (p != -1)
line = line.substring(0, p);
line = line.trim() + "@mci.com";
if (list.indexOf(line) == -1)
list.add(line);
}//end while
br.close();
String[] contactArray = new String[list.size()];
list.toArray(contactArray);
return contactArray;
}// end String
// setting up the XML file
Document createXMLDocument(String[] contactArray) throws Exception {
DocumentBuilderFactory dBF = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = dBF.newDocumentBuilder();
DOMImplementation domImpl = builder.getDOMImplementation();
Document document = domImpl.createDocument(null, "messenger", null);
Element root = document.getDocumentElement();
Element svcElm = document.createElement("service");
Element clElm = document.createElement("contactlist");
svcElm.setAttribute("name", "Microsoft RTC Instant Messaging");
svcElm.appendChild(clElm);
root.appendChild(svcElm);
for (int i = 0; i < contactArray.length; i++) {
Element conElm = document.createElement("contact");
Text conTxt = document.createTextNode(contactArray);
conElm.appendChild(conTxt);
clElm.appendChild(conElm);
}//end for
return document;
}// end Document
void saveToXMLFile(Document document, File xmlFile) throws Exception {
OutputStream os =
new BufferedOutputStream(new FileOutputStream(xmlFile));
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");//puts information on seperate lines
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");//gives the XML file indentation
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(os);
transformer.transform(source, result);
os.close();
}//end saveToXMLFile
public static void main(String[] args) {
Sametime st = new Sametime();
ImageIcon picIcon = new ImageIcon(st.getClass().getResource("/images/mci.gif"));//Change when default is known!
st.setIconImage(picIcon.getImage());
} //end main
private void setLookAndFeel() {
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
SwingUtilities.updateComponentTreeUI(this);
} catch (Exception e) {
System.err.println("Could not use Look and Feel: " + e);
} //end catch
} //end void setLookAndFeel
} //end public class SametimeAre there features of Java 1.4 that you specifically took advantage and are there any particular lines you are having problems with or did you just freak and post it here?
Basically compile it under Java 1.3 and see what complains. I've done several projects that compile under 1.2, 1.3, and 1.4.
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