I'm a student who needs help with a homework problem. The thing is that I wrote a rest web service using SAX parser in order to display a xml file that I have stored on the same folder of the project. The problem is that when I use the path I provided to it, it's not happening anything. I'm probably doing something wrong on my code. Here it is:
package com.crunchify.restjersey;
import java.io.IOException;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
#Path("/saxbooksxml")
public class SaxBooksXml {
public SaxBooksXml(){}
#GET
#Produces(MediaType.APPLICATION_XML)
public void gofindsaxbooks(){
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = null;
try {
saxParser = factory.newSAXParser();
} catch (ParserConfigurationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (SAXException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
DefaultHandler handler = new DefaultHandler(){
boolean bauthor = false;
boolean btitle = false;
boolean bgenre = false;
boolean bprice = false;
boolean bpublish_date = false;
boolean bdescription = false;
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException{
if(qName.equalsIgnoreCase("author")){
bauthor = true;
}
if(qName.equalsIgnoreCase("title")){
btitle = true;
}
if(qName.equalsIgnoreCase("genre")){
bgenre = true;
}
if(qName.equalsIgnoreCase("price")){
bprice = true;
}
if(qName.equalsIgnoreCase("publish_date")){
bpublish_date = true;
}
if(qName.equalsIgnoreCase("description")){
bdescription = true;
}
}
public void endElement(String uri, String localName, String qName) throws SAXException{
}
public void characters(char ch[], int start, int lenght) throws SAXException{
if(bauthor){
System.out.println("author: "+new String(ch, start, lenght));
bauthor = false;
}
if(btitle){
System.out.println("title: "+new String(ch, start, lenght));
btitle = false;
}
if(bgenre){
System.out.println("genre: "+new String(ch, start, lenght));
bgenre = false;
}
if(bprice){
System.out.println("price: "+new String(ch, start, lenght));
bprice = false;
}
if(bpublish_date){
System.out.println("publish_date: "+new String(ch, start, lenght));
bpublish_date = false;
}
if(bdescription){
System.out.println("description: "+new String(ch, start, lenght)+"\n");
bdescription = false;
}
}
};
try {
saxParser.parse("Books.xml", handler);
} catch (SAXException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
This is a print of part of the file I'm trying to parse. The idea is to display it on the browser exactly the same.
enter image description here
Your method gofindsaxbooks returns void
Change it like below:
#GET
#Produces(MediaType.APPLICATION_XML)
public Response gofindsaxbooks()
{
return Response.status(200).entity("Test XML created").build();
}
Related
For some reason my Reducer doesn't seem to be running.
My Driver is
import java.io.File;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.*;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
public class PageRank {
public static void main(String[] args) throws Exception {
PageRank pageRanking = new PageRank();
//In and Out dirs in HDFS
pageRanking.runXmlParsing(args[0], args[1]);
System.out.println("finished");
}
public void runXmlParsing(String inputPath, String outputPath) throws IOException {
Configuration conf = new Configuration();
conf.set(XmlInputFormat.START_TAG_KEY, "<page>");
conf.set(XmlInputFormat.END_TAG_KEY, "</page>");
Job job1 = Job.getInstance(conf);
job1.setJarByClass(PageRank.class);
job1.setOutputKeyClass(Text.class);
job1.setOutputValueClass(Text.class);
// Our class to parse links from content.
job1.setMapperClass(WikiPageXMLMapper.class);
job1.setReducerClass(WikiLinksReducer.class);
job1.setInputFormatClass(XmlInputFormat.class);
job1.setOutputFormatClass(TextOutputFormat.class);
// Remove output if already exists
FileSystem.getLocal(conf).delete(new Path(outputPath), true);
FileInputFormat.setInputPaths(job1, new Path(inputPath));
FileOutputFormat.setOutputPath(job1, new Path(outputPath));
System.out.println("BEFORE RUN");
try {
job1.waitForCompletion(true);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void deleteDir(File dir) {
File[] files = dir.listFiles();
for (File myFile: files) {
if (myFile.isDirectory()) {
deleteDir(myFile);
}
myFile.delete();
}
}
}
My Mapper is
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.*;
public class WikiPageXMLMapper extends Mapper<LongWritable, Text, Text, Text> {
#Override
public void map(LongWritable key, Text value, Context output) throws IOException {
String[] titleAndText = parseTitleAndText(value.toString());
String pageString = titleAndText[0];
Text page = new Text(pageString.replace(' ', '_'));
String[] parts = titleAndText[1].split("\\[\\[");
String pages = "!##$ ";
for (int i = 1; i < parts.length; i++) {
int lastIndexBrackets = parts[i].lastIndexOf("]]");
// This checks and skips the first part of the outer link
if (lastIndexBrackets == -1)
continue;
String insideLinkPlusExtra = parts[i].substring(0, lastIndexBrackets);
int multipleClosingBrackets = insideLinkPlusExtra.indexOf("]]");
String otherPage = insideLinkPlusExtra;
if (multipleClosingBrackets != -1) {
otherPage = insideLinkPlusExtra.substring(0, multipleClosingBrackets);
}
otherPage = otherPage.split("\\|")[0];
otherPage = checkForDuplicates(otherPage, pages);
otherPage = (otherPage.indexOf(":") == -1) ? otherPage : "";
otherPage = (otherPage.indexOf("#") == -1) ? otherPage : "";
otherPage = checkForSubpageLinks(otherPage);
otherPage = checkForRedLink(otherPage);
if (otherPage == "")
continue;
Text oP = new Text(otherPage.replace(' ', '_'));
pages += oP + " ";
// taking each outlink and making it its own key (ingraph)
try {
output.write(new Text(oP), new Text(page));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
// Designate this page as not a redlink
try {
output.write(new Text(page), new Text("!##$"));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return;
}
}
And my Reducer is:
import java.io.IOException;
import java.util.Iterator;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;
public class WikiLinksReducer extends Reducer<Text, Text, Text, Text> {
public void reduce(Text key, Iterator<Text> values, org.apache.hadoop.mapreduce.Reducer<Text, Text, Text, Text>.Context output) throws IOException, InterruptedException {
System.out.println("REDUCER");
String links = "";
boolean isNotRedLink = false;
System.out.println("Starting reduce");
// Brett concern (and zach's): if n pages link to a redlink
// we will iterate n times and it could be wasteful
while(values.hasNext()){
String v = values.next().toString();
// Check first outlink is not #, if so, it is a redlink
if (v.equals("!##$")) {
isNotRedLink = true;
continue;
} else {
links += v;
continue;
}
}
// If the key is not a redlink, send it to the output
if (isNotRedLink) {
try {
output.write(key, new Text(links));
output.write(key, new Text("TESTING!"));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(links);
} else {
System.out.println(output);
try {
output.write(key, new Text("BLEG"));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(key + " IS A RED LINK");
return;
}
}
}
None of the System.out.println(...)s in my Reducer output to the console, and my output from the program (the file it leaves on my HDD) only has the results from the Mapper.
I feel silly. I tried Iterable instead of Iterator in the line public void reduce(Text key, Iterable<Text> values, org.apache.hadoop.mapreduce.Reducer<Text, Text, Text, Text>.Context output) throws IOException, InterruptedException { and my issue is solved.
I have below soap message.I want to extract Id and chargeBoxIdentity element.
ID: 2
Address: http://localhost:8080/ocppserver/services/CentralSystemService
Encoding: UTF-8
Http-Method: POST
Content-Type: application/soap+xml;charset=UTF-8;action="/Authorize"
Headers: {accept-encoding=[gzip,deflate], connection=[Keep-Alive], Content-Length= [852], content-type=[application/soap+xml;charset=UTF-8;action="/Authorize"], host=[localhost:8080], user-agent=[Apache-HttpClient/4.1.1 (java 1.5)]}
Payload: <s:Envelope xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing">
<s:Header>
<h:chargeBoxIdentity xmlns:h="urn://Ocpp/Cs/2012/06/" xmlns="urn://Ocpp/Cs/2012/06/">REE001</h:chargeBoxIdentity>
<a:From>
<a:Address>http://127.0.0.1:8081/ChargeBox/Ocpp</a:Address>
</a:From>
<a:MessageID>urn:uuid:2ae9d933-4f92-4628-84fe-35024a858450</a:MessageID>
<a:ReplyTo>
<a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
</a:ReplyTo>
<a:Action>/Authorize</a:Action></s:Header>
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<authorizeRequest xmlns="urn://Ocpp/Cs/2012/06/">
<idTag>EF1234</idTag>
</authorizeRequest>
</s:Body>
</s:Envelope>
I wrote below interceptor .Below interceptor print the Header and payload field.How to extract the Id ? How to extract chargeboxIdentity from the payload ? I am using the log4j framework.
import java.io.InputStream;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.apache.cxf.binding.soap.SoapMessage;
import org.apache.cxf.binding.soap.interceptor.AbstractSoapInterceptor;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.helpers.IOUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.io.CachedOutputStream;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.Phase;
public class InBoundMessage extends AbstractSoapInterceptor {
public InBoundMessage() {
super(Phase.RECEIVE);
}
public void handleMessage(SoapMessage message) throws Fault {
Map<String, List<String>> headers = CastUtils.cast((Map)message.get(Message.PROTOCOL_HEADERS));
if (headers != null) {
Set<Entry<String,List<String>>> hashSet=headers.entrySet();
for(Entry<String,List<String>> entry:hashSet ) {
System.out.println("Key="+entry.getKey()+", Value="+entry.getValue());
}
}
System.out.println("Message id = "+message.getId());
try{
InputStream is = message.getContent ( InputStream.class );
CachedOutputStream os = new CachedOutputStream ( );
IOUtils.copy ( is, os );
os.flush();
message.setContent ( InputStream.class, os.getInputStream ( ) );
is.close();
String payload=IOUtils.toString ( os.getInputStream ( ) );
System.out.println ("The request is: " + payload);
}catch(Exception e){
e.printStackTrace();
}
}
}
I parsed the soap message by using SAX parser.
import java.io.StringReader;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class ParseInBoundSoapMessage {
private static InBoundSoapMessage inBoundSoapMessage=null;
public static InBoundSoapMessage getInBoundSoapMessage(String xml) {
try {
inBoundSoapMessage=new InBoundSoapMessage();
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setNamespaceAware(true);
SAXParser saxParser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler() {
boolean ischargeBoxIdentityPresent = false;
boolean isAddressPresent = false;
boolean isFromPresent=false;
boolean isActionPresent=false;
boolean isMessageID=false;
boolean isRelatesTo=false;
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if (localName.equals("chargeBoxIdentity")) {
ischargeBoxIdentityPresent = true;
}
if (localName.equals("From")) {
isFromPresent = true;
}
if (localName.equals("Address")) {
isAddressPresent = true;
}
if(localName.equals("Action")){
isActionPresent=true;
}
if(localName.equals("MessageID")){
isMessageID=true;
}
if(localName.equals("RelatesTo")){
isRelatesTo=true;
}
}
public void characters(char ch[], int start, int length) throws SAXException {
if (ischargeBoxIdentityPresent) {
inBoundSoapMessage.setChargeBoxIdentity(new String(ch, start, length));
ischargeBoxIdentityPresent = false;
}
if(isAddressPresent && isFromPresent){
inBoundSoapMessage.setAddressInFrom(new String(ch, start, length));
isAddressPresent = false;
isFromPresent=false;
}
if(isActionPresent){
inBoundSoapMessage.setAction(new String(ch, start, length));
isActionPresent=false;
}
if(isMessageID){
inBoundSoapMessage.setMessageId(new String(ch, start, length));
isMessageID=false;
}
if(isRelatesTo){
inBoundSoapMessage.setRelatesTo(new String(ch, start, length));
isRelatesTo=false;
}
}
};
saxParser.parse(new InputSource(new StringReader(xml)), handler);
} catch (Exception e) {
e.printStackTrace();
}
return inBoundSoapMessage;
}
}
I am currently just trying to process the elements within the item nodes. I am just focusing on the title at this point for simplicity, but I am finding that when it parses, I am just getting the same element three times.
http://open.live.bbc.co.uk/weather/feeds/en/2643123/3dayforecast.rss
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import android.util.Log;
public class XMLHelper extends DefaultHandler {
private String URL_Main="http://open.live.bbc.co.uk/weather/feeds/en/2643123/3dayforecast.rss";
String TAG = "XMLHelper";
Boolean currTag = false;
String currTagVal = "";
public ItemData item = null;
public ArrayList<ItemData> items = new ArrayList<ItemData>();
public void get() {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
XMLReader reader = parser.getXMLReader();
reader.setContentHandler(this);
InputStream inputStream = new URL(URL_Main).openStream();
reader.parse(new InputSource(inputStream));
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.getMessage());
}
}
// Receives notification of the start of an element
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
Log.i(TAG, "TAG: " + localName);
currTag = true;
currTagVal = "";
if (localName.equals("channel")) {
item = new ItemData();
}
}
// Receives notification of end of element
public void endElement(String uri, String localName, String qName)
throws SAXException {
currTag = false;
if (localName.equalsIgnoreCase("title"))
item.setTitle(currTagVal);
else if (localName.equalsIgnoreCase("item"))
items.add(item);
}
// Receives notification of character data inside an element
public void characters(char[] ch, int start, int length)
throws SAXException {
if (currTag) {
currTagVal = currTagVal + new String(ch, start, length);
currTag = false;
}
}
}
The reason you are getting the same value thrice is because you are creating the object when there is a channel tag in startElement method.
if (localName.equals("channel")) {
item = new ItemData();
}
I guess you should initiate the object whenever there is a item tag as below
if (localName.equals("item")) { // check for item tag
item = new ItemData();
}
Remodify your whole project, you need 3 classes :
1.ItemList
2.XMLHandler extends Default handler
3.SAXParsing activity
Make your code organized first
In your XMLHandler class extend default handler your code should look like
public class MyXMLHandler extends DefaultHandler
{
public static ItemList itemList;
public boolean current = false;
public String currentValue = null;
#Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
// TODO Auto-generated method stub
current = true;
if (localName.equals("channel"))
{
/** Start */
itemList = new ItemList();
}
}
#Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
// TODO Auto-generated method stub
current = false;
if(localName.equals("item"))
{
itemList.setItem(currentValue);
}
else if(localName.equals("title"))
{
itemList.setManufacturer(currentValue);
}
}
#Override
public void characters(char[] ch, int start, int length)
throws SAXException {
// TODO Auto-generated method stub
if(current)
{
currentValue = new String(ch, start, length);
current=false;
}
}
}
ItemList class is used to set , setter and getter methods to pass in values of arraylist and retrieve those array lists in the SAXParsing activity.
I hope this solution helps. :D
I do this
package file;
import java.io.IOException;
import org.apache.log4j.Logger;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.LocatorImpl;
import org.xml.sax.helpers.XMLReaderFactory;
public class GetNatureSax implements ContentHandler {
private final static Logger _logger = Logger.getLogger(GetNatureSax.class.getName());
private boolean isCurrentElement = false;
private Locator locator;
private String _parameterValue = null;
public GetNatureSax() {
super();
locator = new LocatorImpl();
}
public String getValeurParametre() {
return _parameterValue;
}
public void setDocumentLocator(Locator value) {
locator = value;
}
public void startDocument() throws SAXException {}
public void endDocument() throws SAXException {}
public void startPrefixMapping(String prefix, String URI) throws SAXException {
}
public void endPrefixMapping(String prefix) throws SAXException {}
public void startElement(String nameSpaceURI, String localName, String rawName, Attributes attributs)
throws SAXException {
if (localName.equals("Nature")) {
isCurrentElement = true;
}
}
public void endElement(String nameSpaceURI, String localName, String rawName) throws SAXException {
if (localName.equals("Nature")) {
isCurrentElement = false;
}
}
public void characters(char[] ch, int start, int end) throws SAXException {
if (isCurrentElement) {
_parameterValue = new String(ch, start, end);
}
}
public void ignorableWhitespace(char[] ch, int start, int end) throws SAXException {
System.out.println("espaces inutiles rencontres : ..." + new String(ch, start, end) + "...");
}
public void processingInstruction(String target, String data) throws SAXException {
System.out.println("Instruction de fonctionnement : " + target);
System.out.println(" dont les arguments sont : " + data);
}
public void skippedEntity(String arg0) throws SAXException {}
public void parseFichier(String i_fichierATraiter) {
XMLReader saxReader;
try {
saxReader = XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
saxReader.setContentHandler(new GetNatureSax());
saxReader.parse(i_fichierATraiter);
System.out.println(_parameterValue);
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
My XML:
...
<Reference>
<Nature>ACHAT</Nature>
<Statut>2</Statut>
<Type-Gest>RE</Type-Gest>
<Gest>RE_ELECTRA</Gest>
<Type-Res>D</Type-Res>
<Nb-h>24</Nb-h>
</Reference>
...
why when it execute this line
System.out.println(_parameterValue);
my variable is null and before when i debug my variable is not null
Because you instantiate a new GetNatureSax and give it to the SaxReader has a Content Handler.
So when the parsing has ended, it is the new GetNatureSax instance that have been modified and which have the field _parameterValue set, not the current instance (this).
Just modify your parseFichier method like this:
saxReader = XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
saxReader.setContentHandler(this); // here
saxReader.parse(i_fichierATraiter);
System.out.println("Found: " + getValeurParametre());
Using my debugger I can see you are using two GetNatureSax
saxReader.setContentHandler(new GetNatureSax());
This creates a second GetNatureSax object where is where the value is being set.
Changing it to
saxReader.setContentHandler(this);
fixed the problem.
I haven't worked much with XML before so maybe my ignorance on proper terminology is hurting me in my searches on how to do this. I have the code snippet below which I am using to parse an XML file like the one below. The problem is that it only picks up XML values within <Tag>Value</Tag> but not for the one below where I need to get the value of TagValue, which in this case would be "Russell Diamond".
I would appreciate if anyone can offer assistance as to how to get custom values like this. Thanks.
<Tag TagName="#Subject" TagDataType="Text" TagValue="Russell Diamond"/>
The snippet I am using:
public void printElementNames(String fileName) throws IOException {
//test write to file
FileWriter fstream = new FileWriter("/home/user/Desktop/readEDRMtest.txt");
final BufferedWriter out = new BufferedWriter(fstream);
//
try {
SAXParserFactory parserFact = SAXParserFactory.newInstance();
SAXParser parser = parserFact.newSAXParser();
System.out.println("XML Elements: ");
DefaultHandler handler = new DefaultHandler() {
public void startElement(String uri, String lName, String ele,
Attributes attributes) throws SAXException {
// print elements of xml
System.out.println(ele);
try {
out.write(ele);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void characters(char ch[], int start, int length)
throws SAXException {
System.out.println("Value : "
+ new String(ch, start, length));
try {
out.write("Value : "
+ new String(ch, start, length));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
You want to look into extracting attributes. Search on that and you'll find your answer.
The DefaultHandler class's startElement(...) method passes a parameter called attributes that refers to an Attribute object. The API for the Attribute interface will describe how to extract the information you need from this object.
For example:
out.write(attributes.getValue("TagValue"));
This is a stripped down and working version of your code snippet:
import java.io.File;
import java.io.IOException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class SAX
{
public static void main(String[] args) throws IOException {
new SAX().printElementNames("Delete.xml");
}
public void printElementNames(String fileName) throws IOException
{
try {
SAXParserFactory parserFact = SAXParserFactory.newInstance();
SAXParser parser = parserFact.newSAXParser();
DefaultHandler handler = new DefaultHandler()
{
public void startElement(String uri, String lName, String ele, Attributes attributes) throws SAXException {
System.out.println(ele);
System.out.println(attributes.getValue("TagValue"));
}
public void characters(char ch[], int start, int length) throws SAXException {
System.out.println("Value : " + new String(ch, start, length));
}
};
parser.parse(new File(fileName), handler);
}catch(Exception e){
e.printStackTrace();
}
}
}
Content of Delete.xml
<Tag TagName="#Subject" TagDataType="Text" TagValue="Russell Diamond"/>
Further reading:
http://www.java-samples.com/showtutorial.php?tutorialid=152