Stop SAX parsing

Hi,
How can i stop a parsing with sax (AbstractSAXParser) ?
I have a parse methode but non stopparse methode.
Best regard

Let your ContentHandler throw a SAXException when the stop condition is fulfilled.

Similar Messages

Stop Sax Parser in the middle of parsing

Hi all,
I am using Sax Parser.
I want to stop the parsing after finding a specific element for the first time. I have thought on two ways -
1. Throwing an exception - Pros- clean, short. Cons - ugly it is not Exception.
2. adding a flag and if statement in the begin of each event-driving method checking whether I have found the element or not - Cons - I am still wasting lots of time on parsing all the file and doing nothing.
Does anybody know any better way of stopping the Sax Parser?

I've never tried to do this. The two options you have provided should work. I don't know of any others. The second option could be modified to use a Strategy pattern. Make a Handler that jst defers to your real handler. Once you hit the element tha you need, swap out your handler with one that has an empty implemetation.

How to ? stop parsing SAX parser

is there any way to tell the SAX parser for stoping the parsing.

throw an exception (like MySaxiusInterruptus...)

Sax parser problem

hi,
i am assuming the problem is with sax parser but i cant be sure. I am parsing a xml file (about 1.4MB) with some data in it. the parser i have created reads the xml file correctly for the most part but when at some point the
"public void characters(char buf[], int offset, int len) throws SAXException"
function stops working correctly....i.e it doesnt fully read read the data between the "<start>" and "</start>" element. say it reads about 100 id's correctly---for 101 ID it does this. This is just an example. Since, the problem might be with how :
"public void characters(char buf[], int offset, int len) throws SAXException"
function is reading the data i was wondering if anybody else had encountered this problem or please let me know if i need to change something in the code: here's a part of the code :
Bascially i have created three classes to enter data into three mysql tables and as i parse the data i fill up the columns by matching the column header with the tagName.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.*;
import java.io.*;
import java.util.ArrayList;
import java.lang.Object;
import org.xml.sax.*;
import org.xml.sax.helpers.DefaultHandler;
import java.util.*;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
public class Echo03 extends DefaultHandler
StringBuffer textBuffer;
int issuedValue, prodValue;
OrdHeader header = new OrdHeader();
OrdDetail detail = new OrdDetail();
Member memInfo = new Member();
//new addition to store the dynamic value of the products
TestOrdheader prod = new TestOrdheader();
int counter;
String tag, newTag;
SetValue setVal = new SetValue();
String test;
public static void main(String argv[])
if (argv.length != 1) {
System.err.println("Usage: cmd filename");
System.exit(1);
// Use an instance of ourselves as the SAX event handler
DefaultHandler handler = new Echo03();
// Use the default (non-validating) parser
SAXParserFactory factory = SAXParserFactory.newInstance();
try {
// Set up output stream
out = new OutputStreamWriter(System.out, "UTF8");
// Parse the input
SAXParser saxParser = factory.newSAXParser();
saxParser.parse( new File(argv[0]), handler);
} catch (Throwable t) {
t.printStackTrace();
System.exit(0);
static private Writer out;
private String indentString = " "; // Amount to indent
private int indentLevel = 0;
//===========================================================
// SAX DocumentHandler methods
//===========================================================
public void startDocument()
throws SAXException
nl();
nl();
emit("START DOCUMENT");
nl();
emit("<?xml version='1.0' encoding='UTF-8'?>");
header.assign();
public void endDocument()
throws SAXException
nl(); emit("END DOCUMENT");
try {
nl();
out.flush();
} catch (IOException e) {
throw new SAXException("I/O error", e);
public void startElement(String namespaceURI,
String lName, // local name
String qName, // qualified name
Attributes attrs)
throws SAXException
indentLevel++;
nl(); //emit("ELEMENT: ");
String eName = lName; // element name
if ("".equals(eName)) eName = qName; // namespaceAware = false
if (qName.equals("Billing")){
issuedValue = 1;
}else if (qName.equals("Shipping")){
issuedValue = 2;
}else if (qName.equals("ShippingTotal")){
issuedValue = 3;
//check to see if "Product" is the name of the element thats coming next
if (qName.equals("Product")){
if (issuedValue != 3){
prodValue = 1;
prod.addCounter();
}else{
prodValue = 0;
tag = eName;
if (attrs != null) {
for (int i = 0; i < attrs.getLength(); i++) {
String aName = attrs.getLocalName(i); // Attr name
if ("".equals(aName)) aName = attrs.getQName(i);
nl();
emit(" ATTR: ");
emit(aName);
emit("\t\"");
emit(attrs.getValue(i));
emit("\"");
if (attrs.getLength() > 0) nl();
public void endElement(String namespaceURI,
String sName, // simple name
String qName // qualified name
throws SAXException
nl();
String eName = sName; // element name
if ("".equals(eName)){
eName = qName; // not namespaceAware
if ("Order".equals(eName)){
//enter into database
 databaseEnter();
textBuffer = null;
indentLevel--;
public void characters(char buf[], int offset, int len)
throws SAXException
nl();
try {
String s = new String(buf, offset, len);
if (!s.trim().equals("")){
settag(tag, s);
s = null;
}catch (NullPointerException E){
System.out.println("Null pointer Exception:"+E);
//===========================================================
// Utility Methods ...
//===========================================================
// Wrap I/O exceptions in SAX exceptions, to
// suit handler signature requirements
private void emit(String s)
throws SAXException
try {
out.write(s);
out.flush();
} catch (IOException e) {
throw new SAXException("I/O error", e);
// Start a new line
// and indent the next line appropriately
private void nl()
throws SAXException
String lineEnd = System.getProperty("line.separator");
try {
out.write(lineEnd);
for (int i=0; i < indentLevel; i++) out.write(indentString);
} catch (IOException e) {
throw new SAXException("I/O error", e);
===================================================================
///User defined methods
===================================================================
private String strsplit(String splitstr){
String delimiter = new String("=");
String[] value = splitstr.split(delimiter);
value[1] = value[1].replace(':', ' ');
return value[1];
public void settag(String tag, String s){
String pp_transid = null, pp_respmsg = null,pp_authid = null, pp_avs = null, pp_avszip = null;
if ((tag.equals("OrderDate")) || (tag.equals("OrderProcessingInfo"))){
if (tag.equals("OrderDate")){
StringTokenizer st = new StringTokenizer(s);
String orddate = st.nextToken();
String ordtime = st.nextToken();
header.put("ordDate", orddate);
header.put("ordTime", ordtime);
}else if (tag.equals("OrderProcessingInfo")){
StringTokenizer st1 = new StringTokenizer(s);
int tokenCount = 1;
while (tokenCount <= st1.countTokens()){
switch(tokenCount){
case 1:
String extra = st1.nextToken();
break;
case 2:
String Opp_transid = st1.nextToken();
pp_transid = strsplit(Opp_transid);
break;
case 3:
String Opp_respmsg = st1.nextToken();
pp_respmsg = strsplit(Opp_respmsg);
break;
case 4:
String Opp_authid = st1.nextToken();
pp_authid = strsplit(Opp_authid);
break;
case 5:
String Opp_avs = st1.nextToken();
pp_avs = strsplit(Opp_avs);
break;
case 6:
String Opp_avszip = st1.nextToken();
pp_avszip = strsplit(Opp_avszip);
break;
tokenCount++;
header.put("pp_transid", pp_transid);
header.put("pp_respmsg", pp_respmsg);
header.put("pp_authid", pp_authid);
header.put("pp_avs", pp_avs);
header.put("pp_avszip", pp_avszip);
}else{
newTag = new String(setVal.set_name(tag, issuedValue));
header.put(newTag, s);
//detail.put(newTag, s);
prod.put(newTag, s);
memInfo.put(newTag,s);
//Check to see-- if we should add this product to the database or not
boolean check = prod.checkValid(newTag, prodValue);
if (check){
prod.addValues(s);
setVal.clearMod();
==================================================================
Here's the error that i get:
java.util.NoSuchElementException
at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:691)
at org.apache.crimson.parser.Parser2.parse(Parser2.java:337)
at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:281)
at Echo03.main(Echo03.java:47)

I haven't gone through your code but I also had a similar error....and the exception in my was because of an "&" instead of the entity reference & in one of the element values. I use a non-validating parser but if you use a validating one then this might not be the reason for your exception.

How to parse XML using SAX Parser sequencially

I have a requirement to parse XML file sequencially. But I need to stop the parsing in-between for doing some processing.
Let me explain with example
I have a file with following structure.
<InputFile>
<Invoice>
 <InvoiceNo = "Inv1"/>
<InvoiceDt = "12012002"/>
</Invoice>
<Invoice>
 <InvoiceNo = "Inv2"/>
<InvoiceDt = "12012002"/>
</Invoice>
<Invoice>
 <InvoiceNo = "Inv3"/>
<InvoiceDt = "12012002"/>
</Invoice>
For each Invoice node I need to process some activites. So I need to write a method which will open the XML file and parse and returns me a complete element from <invoice> to </Invoice> sequencially.
Please let me know whther some body has solution for this.
Manoj.

If you're using a SAX parser then you can implement your code in the startElement(), endElement(), and characters() methods... have a look at the tutorial here:
http://java.sun.com/xml/jaxp/dist/1.1/docs/tutorial/index.html

SAX Parser parses half the tag randomly

Hello,
I have a SAX parser which parses an XML <edc:EngagementStartDate>2004-06-10</edc:EngagementStartDate>.
Randomly,the parser returns "200" as the parsed character data.
This tag is in row no.231 in the XML.If i move this row to row no.230 or 232 I do not get this error.
Its really weird as there is no pattern and if I remove this row,it stops in another row.
any idea or suggestion would be great.Its not nothing with the numbers.Even if I have <edc:EngagementStartDate>Test</edc:EngagementStartDate>,it parses just the first 3 characters

if (strQName.equals(ENGSTARTDATE))
if(!blnEngStartDateVisited)
tests = tests + ENGSTARTDATE + ":";
blnEngStartDateEnd = true;
blnEngStartDate = false;
This is from the endElemennt().
I have a visted variable which I set in characters method to make sure I visisted the characters().
Please let me know if anything strikes you.I am clueless as there is no pattern why it parses 3 characters in this row.

Getting characters in a particular xml tag type during Sax parsing.

How do I get the text within a certain XML tag using the parser. I can use the parser which will get me all the text in all the tags, but how do I get the ones I need only.
For example:
<channel id="south-east.bbc1.bbc.co.uk">
 <display-name lang="en">BBC1</display-name>
 <display-name>1</display-name>
</channel>
<programme start="20040217233500" stop="20040218000500 +0000" channel="south-east.bbc1.bbc.co.uk">
 <title lang="en">Film 2004 with Jonathan Ross</title>
</programme>how do I get the text 'Film 2004 with Jonathan Ross' without getting the others?

Well, the SAX parser just gives you the start/end tag
information to a handler, right? So if you just use
the SAX parser to get one item, then you could do it
by running thru the entire XML file to get that item
then get another item. Clearly this isn't the best
way to do it.... The handler should put the data for
the whole document into some data structure, or use
DocumentBuilder to get a Document object. I see. Yes, that is not the way to use SAX. It's kind of an inside out way of doing things. If you using SAX you should know everything that you want before parsing and grab all of them in one fell swoop.
If you want to get an in memory representation, the JDOM package is a whole lot eaiser to use than DOM.

How to deal with empty tags in a SAX Parser

Hi,
I hope someone can help me with the problem I am having!
Basically, I have written an xml-editor application. When an XML file is selected, I parse the file with a SAX parser and save the start and end locations of all the tags and character data. This enables me to display the xml file with the tags all nicely formatted with pretty colours. Truly it is a Joy To Behold. However, I have a problem with tags in this form:
<package name="boo"/>
because the SAX parser treats them like this:
<package name = boo>
</package>
for various complex reasons the latter is unaccetable so my question is: Is there some fiendishly clever method to detect tags of this type as they occur, so that I can treat them accordingly?
Thanks,
Chris

I have spent some time on googling for code doing this, but found nothing better, than I had to write in by myself.
So, it would be something like this. Enjoy :)
package comd;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.SAXException;
import org.xml.sax.Attributes;
import java.util.Stack;
import java.util.Enumeration;
public class EmptyTagsHandler extends DefaultHandler {
 private StringBuilder xmlBuilder;
 private Stack<XmlElement> elementStack;
 private String processedXml;
 private class XmlElement{
 private String name;
 private boolean isEmpty = true;
 public XmlElement(String name) {
 this.name = name;
 public void setNotEmpty(){
 isEmpty = false;
 public EmptyTagsHandler(){
 xmlBuilder = new StringBuilder();
 elementStack = new Stack();
 private String getElementXPath(){
 StringBuilder builder = new StringBuilder();
 for (Enumeration en=elementStack.elements();en.hasMoreElements();){
 builder.append(en.nextElement());
 builder.append("/");
 return builder.toString();
 public String getXml(){
 return processedXml;
 public void startDocument() throws SAXException {
 xmlBuilder = new StringBuilder();
 elementStack.clear();
 processedXml = null;
 public void endDocument() throws SAXException {
 processedXml = xmlBuilder.toString();
 public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
 if (!elementStack.empty()) {
 XmlElement elem = elementStack.peek();
 elem.setNotEmpty();
 xmlBuilder.append("<");
 xmlBuilder.append(qName);
 for (int i=0; i<attributes.getLength();i++){
 xmlBuilder.append(" ");
 xmlBuilder.append(attributes.getQName(i));
 xmlBuilder.append("=");
 xmlBuilder.append(attributes.getValue(i));
 xmlBuilder.append(">");
 elementStack.push(new XmlElement(qName));
 public void endElement(String uri, String localName, String qName) throws SAXException {
 XmlElement elem = elementStack.peek();
 if (elem.isEmpty) {
 xmlBuilder.insert(xmlBuilder.length()-1, "/");
 } else {
 xmlBuilder.append("</");
 xmlBuilder.append(qName);
 xmlBuilder.append(">");
 elementStack.pop();
 public void characters(char ch[], int start, int length) throws SAXException {
 if (!elementStack.empty()) {
 XmlElement elem = elementStack.peek();
 elem.setNotEmpty();
 String str = new String(ch, start, length);
 xmlBuilder.append(str);
 public void ignorableWhitespace(char ch[], int start, int length) throws SAXException {
 String str = new String(ch, start, length);
 xmlBuilder.append(str);
}

XML - SAX Parsing Question

Hi,
I am parsing XML using SAX parser and fill the values into the HashTable ( like Key value pair ).. so i can get the vaues for a particular key using hash get function.
For the following XML. There are 2 "subscriberNumber" attribute, one is under "sn:Subscriber" and the another is under "sn:SubscriberChange".
I can able to put this values in hash table and when i print the Hash table it is printing as sn:subscriberNumber=[1234567890, 1234567890] .. But how will i know which one is from "sn:Subscriber" and which is from "sn:SubscriberChange"
This is the XML :
<sn:SubscriberNotification>
<sn:notificationSubType>1120</sn:notificationSubType>
<sn:Subscriber>
 <cng:PaymentType>PostPaid</cng:PaymentType>
 <sn:subscriberNumber>1234567890</sn:subscriberNumber>
</sn:Subscriber>
<sn:SubscriberChange>
 <sn:subscriberNumber>1234567890</sn:subscriberNumber>
</sn:SubscriberChange>
</sn:SubscriberNotification>
Any suggestion and pointers are really helpful
Thanks,
-Raj..

Try something like this:
import java.util.Stack;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
class MyHandler extends DefaultHandler {
 Stack openTags = new Stack();
 public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
 if (qName.equals("sn:subscriberNumber")) {
 String parentTag = (String)openTags.peek();
 System.out.println("Parent tag of this <sn:subscriberNumber> is : <" + parentTag + ">");
 openTags.push(qName);
 public void endElement(String uri, String localName, String qName) throws SAXException {
 openTags.pop();
}Regards

Xml sax parser

Hi all,
I am newbie to xml. I am using SAX parser for parsing xml documents. I have to write a code which parses all types of xsd files(including which can contain inline , referenced or both). Can anyone help / guide me how to code a generic xsd parser??
Thanks in advance,

An XSD file is an XML file, so you can parse it using sax.
See :
http://java.sun.com/webservices/jaxp/dist/1.1/docs/tutorial/sax/2a_echo.html
http://java.sun.com/webservices/jaxp/dist/1.1/docs/tutorial/sax/work/Echo02.java
See also:
http://www.oracle.com/technology/tech/xml/xdk/doc/production/java/doc/java/javadoc/oracle/xml/parser/schema/XMLSchema.html#getXMLSchemaNodeTable

XML SAX parser that support LexicalHandler

Hello,
I'm looking for an XML SAX parser that support a LexicalHandler.
I have xml files that are not well formed, ie: (&, <, >, etc...) characters within tags and I need to ignore them.
Anyone have a link to some opensource library ??
Thanks,
Samir

Don't waste your time. Using a LexicalHandler isn't going to help with parsing malformed XML. You should get the person who produced those files to replace them with correct XML.
PC²

Why are all the events in the XML SAX parser not activated?

Hi everyone,
I have written a mini server that parses XML files into SQL queries.
Below is a segment of my code;
 try {
 Class.forName( JDBC_DRIVER );
 myConnection = DriverManager.getConnection( DATABASE_URL, "username", "password");
 EventXMLParser myEXP = new EventXMLParser(directory, myConnection);
 File[] xmlFiles = directory.listFiles();
 for (File xmlFile : xmlFiles) {
 myEXP.XMLtoDB(xmlFile);
 outWriter.println("File:" + xmlFile.getName() + " DONE");
 } catch (SQLException e) {
 System.err.println("SQLException for establishing connection");
 e.printStackTrace();
 } catch (ClassNotFoundException e) {
 System.err.println("CLASS NOT FOUND EXCEPTION HERE");
 e.printStackTrace();
 } catch (Exception e) {
 System.err.println(e);
 e.printStackTrace();
 finally {
 outWriter.println("PARSING COMPLETED");
 outWriter.close();
 }Where the constructor EventXMLParser constructs the following:
 public EventXMLParser(File path, Connection connection) {
 super();
 try {
 this.XMLpath = path;
 this.db_connection = connection;
 this.xr = XMLReaderFactory.createXMLReader();
 this.XMLSAXhandler = new DefaultHandler(); //create a new own handler
 this.xr.setContentHandler(XMLSAXhandler);
 this.xr.setErrorHandler(XMLSAXhandler);
 //System.out.println("DEBUG: db_connection is " + db_connection.toString());
 catch (Exception e) {
 System.out.println("Constructor Error!");
 e.printStackTrace();
 }Below are all my helper methods within EventXMLParser.java
 public void XMLtoDB(String XMLpath) throws Exception {
 try {
 //Input
 System.out.println("XMLpath is : " + XMLpath);
 /*FileReader r = new FileReader(XMLpath); debug
 InputSource in = new InputSource(r);
 xr.parse(in);
 xr.parse(XMLpath);
 /* Note that while parsing, the end of each event, </event>
 * will trigger sendSQL to execute the query on the database
 catch (Exception e) {
 throw new Exception("Error with XMLtoDB!! Exception: " + e);
 public void sendSQL(Event event, Connection sql_connection) throws SQLException {
 //JDBC part
 try {
 System.err.println("DEBUG sendSQL");
 Statement sql_statement = sql_connection.createStatement();
 ResultSet resultSet = sql_statement.executeQuery( event.toSQL() );
 catch (SQLException e) {
 e.printStackTrace();
 /* Parsing XML
 * From here onwards it's all designed for the SAX Parsing with different event calling methods
 public void startDocument() {
 System.err.println("Start Document");
 public void endDocument() {
 System.err.println("End Document");
 public void startElement(String uri, String name, String qName, Attributes atts) {
 CurrentElement= name;
 System.out.println("This is parsing");
 public void characters(char ch[], int start, int length) {
 SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
 StringBuffer sb = new StringBuffer();
 for (int i = start; i < start + length; i++)
 sb.append(ch);
 String content = sb.toString();
 if (CurrentElement.equals("eid"))
 temp.setEventID( (Integer.valueOf(content)).intValue() ) ;
 else if (CurrentElement.equals("sd"))
 temp.setShort_description(content);
 else if (CurrentElement.equals("ld"))
 temp.setLong_description(content);
 else if ( (CurrentElement.equals("dt")))
 temp.setDate_Time( formatter.parse(content, new ParsePosition(0)) );
 else if (CurrentElement.equals("repeat"))
 temp.setRepeat_pattern( (Integer.valueOf(content)).intValue() );
 else if (CurrentElement.equals("valid"))
 temp.setValid_period(content);
 else if (CurrentElement.equals("status")) {
 temp.setStatus( (Integer.valueOf(content)).intValue() );
 else {}
 public void endElement(String uri, String name, String qName) {
 System.err.println("DEBUG" + temp.toString()); /*debug*/
 if (name.equals("event")) {
 try {
 /*debug*/ temp.setUserID(1);
 /*debug*/ System.err.println("DEBUG: " + temp.toString());
 sendSQL(temp, db_connection);
 //temp = new Event();
 catch (SQLException e) {
 System.err.println(e);
 }//end catch
 }//end try
Where event is a public class Event {
 //fields
 private int userID = 1; // = 1 only applies for testing
 private int eventID;
 private String short_description;
 private String long_description;
 private Date date_time = null;
 private int repeat_pattern;
 private String valid_period;
 private int status; //1 for new, 0 for modification and -1 for delete
 SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
 //Constructors
 //every event requires the following: userID eventID and short_Description
 public Event(int uID, int eID, String shortDescrp) {
 setUserID(uID);
 setEventID(eID);
 setShort_description(shortDescrp);
 public Event(int uid, int eid, String sd,
 String ld, Date d_t, int r_p, String v_p, int s) {
 setUserID(uid);
 setEventID(eid);
 setShort_description(sd);
 setLong_description(ld);
 setDate_Time(d_t);
 setRepeat_pattern(r_p);
 setValid_period(v_p);
 setStatus(s);
 //set
 public void setUserID (int x) { this.userID = x ;}
 public void setEventID (int x) { this.eventID = x ;}
 public void setShort_description (String x) { this.short_description = x ;}
 public void setLong_description (String x) { this.long_description = x ;}
 public void setDate_Time(Date x) { this.date_time = x ;}
 public void setRepeat_pattern (int x) { this.repeat_pattern = x ;}
 public void setValid_period (String x) { this.valid_period = x ;}
 public void setStatus (int x) { this.status = x; }
 //get
 public int getUserID() { return this.userID;}
 public int getEventID() { return this.eventID;}
 public String getShort_description() { return this.short_description;}
 public String getLong_description() { return this.long_description;}
 public Date getDate_Time() { return this.date_time;}
 public int getRepeat_pattern() { return this.repeat_pattern;}
 public String getValid_period() { return this.valid_period;}
 public int getStatus() { return this.status; }
 //Event to SQL statements;
 public String toSQL() {
 StringBuffer sb = new StringBuffer();
 ///if ( status == 1) {
 sb.append( "INSERT INTO events SET" );
 sb.append( " userID = " + userID + ", ");
 sb.append( "eventID = " + eventID + ", " );
 sb.append( "short_description = " + "\'" + short_description + "\'" + ", "); //String
 sb.append( "long_description = " + "\'" + long_description + "\'" + ", "); //String
 sb.append( "date_time = " + "\'" + formatter.format(date_time) + "\'" + ", ");
 sb.append( "repeat_pattern = " + repeat_pattern + ", " );
 sb.append( "valid_period = " + "\'" + valid_period + "\'" ); //String
 sb.append( ";");
 //} else if ( status == 2) {
 System.err.println(sb.toString());
 return sb.toString();
} My question is: I have taken my SQL query generated by toSQL() method in events and it worked.
Here is the funny thing:
Everything is correct syntax wise: No complaints what soever
The mysql part works: Tested separately.
So I tend to think that the problem lies within the SAX parser. I have written SAX2 parsers on this machine before and they have worked too. I tried inserting println statements all over startElement endElement etc etc only to find out that the SAX parser did not call any of the methods that I overided!! Why is that so?
Can you guys spot where my SAX parser fails?

I see.
I try to correct this problem by removing super();
so right now my code looks like this:
 static Event temp = new Event(0, 0, "null", "null", new Date(), 0, "null", 0);
 static String CurrentElement = null;
 static File XMLpath;
 static Connection db_connection;
 static XMLReader xr;
 static DefaultHandler XMLSAXhandler;
 //Constructor, Build the SAX Parser
 public EventXMLParser(File path, Connection connection) {
 try {
 this.XMLpath = path;
 this.db_connection = connection;
 this.xr = XMLReaderFactory.createXMLReader();
 this.XMLSAXhandler = new DefaultHandler(); //create a new own handler
 this.xr.setContentHandler(XMLSAXhandler);
 this.xr.setErrorHandler(XMLSAXhandler);
 //System.out.println("DEBUG: db_connection is " + db_connection.toString());
 catch (Exception e) {
 System.out.println("Constructor Error!");
 e.printStackTrace();
 }This time, I created a new instance of default handler() which can be referenced by as the objects's XMLSAXhandler. However, that did not solve the problem, why does the problem still persist?
Right now, there is only one instance of a default handler created. So why does all my parsing event functions still get ignored?

How to Create XML file with SAX parser instead of DOM parser

HI ALL,
I am in need of creating an XML file by SAX parser ONLY. As far as my knowledge goes, we can use DOM for such purpose(by using createElement, creatAttribute ...). Can anyone tell me, is there any way to create an XML file using SAX Parser only. I mean, I just want to know whether SAX provides any sort of api for Creatign an element, attribute etc. I know that SAX is for event based parsing. But my requirement is to create an XML file from using only SAX parser.
Any help would be appreciated
Thanx in advance
Kaushik

Hi,
You must write a XMLWriter class yourself, and that Class extends DefaultHandle ....., the overwrite the startElement(url, localName, qName, attributeList), startDocument(), endElement().....and so on.
in startElement write your own logic about how to create a new element and how to create a Attribute list
in startDocument write your own logic about how to build a document and encodeType, dtd....
By using:
XMLWriter out = new XMLWriter()
out.startDocument();
Attribute attr1 = new Atribute();
attr1.add("name", "value");
out.startElement("","","Element1", attr1);
Attribute attr2 = new Atribute();
attr2.add("name", "value");
out.startElement("","","Element2", attr2);
out.endElement("","","Element2");
out.endElement("","","Element1");
out.endDocument();

Error processing request in sax parser No 'action' attribute found in XML

Hi All,
 I am doing a FILE to JDBC Scenario. I just want to send a data from file to Sql Db table. For this I have written a stored procedure to insert the row in a table.
This is the message mapping for FILE to JDBC .
Sender Receiver
*FILESENDER_MT 1..1 FILESENDER_DT * SPRECEIVER_MT 1..1
 .NO 1..1 xsd:string * Statement 1..1 string
 .Name 1..1 xsd:string *user_PROC 1..1
action 1..1required
 *No
isInput 1..1 string
 type 1..1 string
 *Name
 isInput 1..1 string
 type 1..1 string
Mapped Values....
Statement is mapped with FILESENDER_MT
action attribute is mapped with "EXECUTE" Constant
No is mapped with NO
Name is mapped with Name
for both isInput is mapped with TRUE
for both type is mapped with CHAR
Here is the my stored procedure.....
CREATE PROCEDURE [dbo].[user_PROC]
@NO char(10), @Name char(10) AS
insert into FILE2JDBC values('a','ab')
GO
when i run this stored procedure in Sql directly it was executed successfully....
I have checked In SXMB_MONI status is showing green...
xml messages from SXMB_MONI ....
this is the message from payloads of Inbound Message
<PRE> <?xml version="1.0" encoding="UTF-8" ?>
- <ns0:FILESENDER_MT xmlns:ns0="http://www.prospectadelhi.com/DELHI_FILE2JDBC">
<NO>111</NO>
<NAME>murthy</NAME>
</ns0:FILESENDER_MT></PRE>
this is the message from payloads of Request Message Mapping
<?xml version="1.0" encoding="UTF-8" ?>
- <ns0:SPRECEIVER_MT xmlns:ns0="http://www.prospectadelhi.com/DELHI_FILE2JDBC">
- <Statement>
- <user_PROC>
<action>EXECUTE</action>
- <NO>
<isInput>TRUE</isInput>
<type>CHAR</type>
</NO>
- <Name>
<isInput>TRUE</isInput>
<type>CHAR</type>
</Name>
</user_PROC>
</Statement>
</ns0:SPRECEIVER_MT>
this is the error showing in runtime workbench>component monitoring->communication channel monitoring-->Receiver Communication Channel....
Error while parsing or executing XML-SQL document: Error processing request in sax parser: No 'action' attribute found in XML document (attribute "action" missing or wrong XML structure)
Can any body tell me whether the problem is in Mapping or in Data Type Structure..
Please resolve this issue....
Thanks in Advance,
Murthy.

<?xml version="1.0" encoding="UTF-8" ?>
- <ns0:SPRECEIVER_MT xmlns:ns0="http://www.prospectadelhi.com/DELHI_FILE2JDBC">
- <Statement>
- <user_PROC>
<action>EXECUTE</action>
- <NO>
<isInput>TRUE</isInput>
<type>CHAR</type>
</NO>
- <Name>
<isInput>TRUE</isInput>
<type>CHAR</type>
</Name>
</user_PROC>
</Statement>
</ns0:SPRECEIVER_MT>
The Action should be a Attribute of Element user_Proc as,
<?xml version="1.0" encoding="UTF-8" ?>
- <ns0:SPRECEIVER_MT xmlns:ns0="http://www.prospectadelhi.com/DELHI_FILE2JDBC">
- <Statement>
- <user_PROC action="Execute">- <NO>
<isInput>TRUE</isInput>
<type>CHAR</type>
</NO>
- <Name>
<isInput>TRUE</isInput>
<type>CHAR</type>
</Name>
</user_PROC>
</Statement>
</ns0:SPRECEIVER_MT>
Likewise isInput and Type should be Attributes and not Elements .
Regards
Bhavesh

SAX Parser

I am using the sax parser provided by the package javax.xml.parsers to parse an XML file. It works fine as long as I have an XML file which has English characters. When I use it for parsing a file which has Korean characters in it, the parser fails to recognize them.
It used to throw an error "Line too long" on reading the Korean characters. Then I added an XML directive encoding="EUC-KR" and now it reads the file but does not recognize the characters correctly. It reads all the korean characters as question marks ('??').
Any pointers on what can be done to fix this problem.
Thanks,
RahulJ

Hi,
We've got a very similar problem. I'm parsing with SAX and DOM but the MS special characters keep appearing as ? or ??.
If the encoding is not specified in the XML file there are Parser Exceptions. If I set the encoding to "JISAutoDetect", "JIS", "MS932", "Cp1250 to Cp1258" or "ISO8859-1" then there are no exceptions but the stray characters still appear as ?s.
I managed to display the left and the right quotation marks in a servlet by setting the response Content Type to "text/html; charset=Shift_JIS" and the encoding="Cp1252" in the XML file. But I still have problems with the rest of the characters.
What kind of output do you use? Do you display in a web page or you just write to a file?
Thanks,
Ross

Stop SAX parsing

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