SAX Parser method charaters trouble

Hi,
I am using a sax parser for loading an xml file of size over 1gb. The problem whats happening is that the content gets truncated at random.
And this truncation happens in the characters method of the sax parser. This am sure as I logged the content I get from characters method before starting my processing. for ex:
<content>signal1,signal960</content>
<content>signal1,signal970</content>
On parsing the above snippet, the first content "signal1,signal960"
gets extracted completely, however the next one is truncated, and the truncation is random. This happens for some tags, and then the extraction resumes normally. And this truncation starts occuring again after it has extracted a few tags.
Also the first truncation started occuring only after parsing around 200 mb of the 1gb file.
Could anyone tell if there is some limitation with XERCES or CRIMSON.
or if any other one that I can use???
Regards,
R.

To quote from the Documentation of ContentHandler.characters:
-- start quote --
The Parser will call this method to report each chunk of character data. SAX parsers may return all contiguous character data in a single chunk, or they may split it into several chunks; however, all of the characters in any single event must come from the same external entity so that the Locator provides useful information.
-- end quote --
So providing the content in two seperate calls is perfectly valid and must be handled by your code. It's probably a result of the internal workings of the XML parser and allowing that in the Parser specification probably allowed some optimizations that would otherwise be impossible (a constant buffer size, for example).

Similar Messages

Possible to overwrite parse method in DOM with SAX Handler?

Hi,
Is it possible to overwrite the parse method within DOM?
What a want to do is:
     private Node parseXml( String text ) throws SAXParseException, SAXException, IOException, ParserConfigurationException
          SAXParserFactory factory = SAXParserFactory.newInstance();
               factory.setNamespaceAware(true);
               SAXParser parser = factory.newSAXParser();
               TestHandler handler = new TestHandler();
               // Parse the file
               parser.parse(new InputSource(new StringReader(text)), handler);
          return (Node)handler.getRoot();
     } //end parseXml()The reason I want to use this is that within SAX I can write my own line counter so I keep a count of which node is on which line of text.
What I was thinking is that I could use SAX to return DOM Nodes with the line number attached, possibly using the node.setUserData() method?!
I have tried to play around with it and it doen't seem to work, can anyone help?
Cheers Alex

I have managaed to re-write my SAX parser to create a JTree, this works perfectly I can move through the tree and each line of text that corresponds to the node is highlighted.
My problem is however that in my application I have used the DOM structure throughout so some of the functionality is lost.
Is I understand that JAXP uses both SAX and DOM together, so I was wondering if it is possible to combine my sax parse method within the DOM?
If anything is unclear please say and I will try and explain better. The main reason for doing this is that I want to keep a reference to which line of text each node of the dom tree represents. I have not been able to implemnet one in DOM however using SAX I have managed.
Many thanks,
Alex

SAX Parser - Decoding request data

I have implemented the SAX Parser on a web application. To do this I create a BufferedReader from the request and then call the SAX parse() method.
BufferedReader reader = request.getReader();
InputSource inputSource = new InputSource( reader );
xmlReader.parse( inputSource );
The problem is that when the XML data is posted to our web application the data from the request is encoded, and thus I need to decode it before calling parse().
Has anyone encountered this problem? If so, what was their solution?

I'm not sure, but are you posting the XML data as a form field? In that case you need to fetch the string data for the given parameter from the request object using getParameter() and feed that to the XML parser. What you are fetching now is the raw HTTP request data.

SAX parser getValue() method

All,
Whever i get the attribute value using getValue() method , it returns me the result with the lower case string
for example if i have something like this
<input label="Last Name:" />
and i try to get the attribute value of label
String label = attrs.getValue("label");
The result will be
label = "last name"
It doesnot adhere with the case (it returns the value by converting it into lower case)
Is it something that i am doing wrong , or its the way SAX parser internally does it.
I am using the SAX parser which comes with the BlackBerry JDE.
Any answers , pointers will be helpful

Never mind , my input to the SAX parser itself is somehow getting all lower case.
Thanks!

Characters method in SAX parser

Hi
I have a SAX Parser Appln where in I am trying to run it in English Locale But the xml file contains Arabic Characters.
The method characters looks like this
public void characters(char buf[], int offset, int len) throws SAXException
if (recognisedTopElementStarted && storyStarted && recognisedElementStarted )
buffer.append ( new String(buf,offset,len) ) ;
//buffer.append ( new String(buf,offset,len,"UTF-16") ) ;
In this method I want to convert the char array to byte array so as to specify the encoding for constructing a String object(Arabic characters) with correct encoding as specified in the commented statement.
How to do it so as to get the arabic characters
Thanks
Raj

Hi Raj,
I don't have Arabic support on my machine, so I tried with Greek, which has a significant Unicode code page.
To get a byte array, I did this:
byte[] ba = new String(buf, offset, len).getBytes("utf-16");To double check, I saved the byte array in a file output stream and validated the encoding in XML Spy.
So it works for Greek, let's hope it will work for our friends across the Mediterranean sea ;-)
Regards,
David

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);
}

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?

Read any XML File Elements using SAX Parser in J2se

Hi All
I can able to parsed one structured XML file using SAX
Sample code :
// ===========================================================
     // SAX DocumentHandler methods
     // ===========================================================
     public void startDocument() throws SAXException {
          logger.info("Start of document");
     public void endDocument() throws SAXException {
          logger.info("End of document");
     public void startElement(String namespaceURI, String localName, // local
               // name
               String qualName, // qualified name
               Attributes attrs) throws SAXException {
          elemName = new String(localName); // element name
          if (elemName.equals(""))
               elemName = new String(qualName); // namespaceAware = false
          tagPosition = TAG_START;
          // Set the string for accumulating the text in a tag to empty
          elemChars = "";
          // If the element name is "row", create a new row instance
          // If the element is "indexxid", "ModelPrice", or "ModelSpread",
          // the value will be read in the method "characters" and stored.
          if (elemName.equals("row")) {
               row = new IndexRow();
               numRows++;
          // logger.info("Number of numRow:"+numRows);
     } // end method startElement
     public void endElement(String namespaceURI, String simpleName, // simple
               // name
               String qualName // qualified name
     ) throws SAXException {
          elemName = new String(simpleName);
          if (elemName.equals(""))
               elemName = new String(qualName); // namespaceAware = false
          tagPosition = TAG_END;
          String indexId = new String();
          Double dblVal = new Double(0);
          // If element name is "row", put the current row in the map for row
          // instances
          if (elemName.equals("row")) {
               if (numRows <= 5) { logger.info("Row is: " + row.toString()); }
               //ABX
               //indexRows.put(row.getIndexxId(), row);
               if (family.equals("ABX.HE")){
               indexRows.put(row.getIndexREDId(), row);
               else {
                    //CDX ITRXX
                         indexRows.put(row.getIndexxId(), row);
          } else if (elemName.equals("IndexID")) {
               row.setIndexxId(elemChars);
               // Leave double value at default of zero if there are no chars
               if (elemChars.trim().length() != 0) {
                    dblVal = new Double(elemChars);
                    row.setCompositeSpread(dblVal);
                    indexId = row.getIndexxId();
          } else if (elemName.equals("REDCode")) {
               row.setRedCode(elemChars);
          else if (elemName.equals("Name")) {
               row.setRowName(elemChars);
          } else if (elemName.equals("Series")) {
               row.setSeries(elemChars);
          } else if (elemName.equals("Version")) {
               row.setVersion(elemChars);
          } else if (elemName.equals("Term")) {
               row.setTerm(elemChars);
          } else if (elemName.equals("Maturity")) {
               row.setMaturity(elemChars);
          } else if (elemName.equals("OnTheRun")) {
               row.setOnTheRun(elemChars);
          } else if (elemName.equals("Date")) {
               row.setRowDate(elemChars);
          } else if (elemName.equals("Depth")) {
               row.setDepth(elemChars);
          else if (elemName.equals("Heat")) {
               // logger.info("Chars for element " + elemName + " are '" +
               // elemChars + "'");
               // Leave double value at default of zero if there are no chars
               if (elemChars.trim().length() != 0) {
                    dblVal = new Double(elemChars);
                    row.setHeat(dblVal);
                    indexId = row.getIndexxId();
//          ABX.HE
          else if (elemName.equals("IndexREDId")){
               row.setIndexREDId(elemChars);
          else if (elemName.equals("Coupon")){
               row.setCoupon(elemChars);
          if (elemName.equals("Ontherun")) {
               row.setOnTheRun(elemChars);
     } // end method endElement
     public void characters(char buf[], int offset, int len) throws SAXException {
          // If at end of element, there will be no characters
          if (tagPosition == TAG_END) {
               return;
          // The characteres method may be called more than once
          // for an element if the internal buffer fills up.
          // Append the characters until the end of the element.
          String strVal = new String(buf, offset, len);
          elemChars = elemChars + strVal;
     } // end method characters
} // end class MarkItIndexLoader
but the problem is i want to read (parse) any XML file means any Elemets would be change any time using SAX .In the above example
else if (elemName.equals("Heat")) {
else if (elemName.equals("IndexREDId")){
} else if (elemName.equals("Maturity")) {
like above I am doing hard code Elements names and reading the values so i don't want hard coding the elements names I want to read any element name and value dynamically.
If i give any one below XML file i want to read the Elements and displaying to console without changing any code i want to read the XML document.
EX:
Student.XML: <root>..</StName>..</StAge>...</root>
Employee.XML: <root>..</EmpName>..</EmpAge>...</root>
CdCatalog.XML: <root>..</Cdtitle>...</CdNumber>...</root>
I need one java program can ready any type of XML file elements and send to the Database table.
Please any one done like this task please suggest some reference links or books or sample snippet which can help me to develop program in my requirement.
Thanks in advance
Regards
satish

You should ask in the Java forum.
Regards
Stefan

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.

Using the SAX Parser

As I reported in this thread: Carriage Returns in XSLT output I am trying to produce a text output file with each line terminating in cr-lf (using the output from ViewObject.writeXML() passed through the XSLProcessor.processXSL() method to apply a XSLT stylesheet transformation to it), but the cr characters in the stylesheet are being converted to nl characters, so I am ending up with two nl characters at the end of each line.
I found a 2002 query (here: http://www.xslt.com/html/xsl-list/2002-04/msg00193.html) by someone with the same problem, and a reply by Steve Muench explaining it and stating that the Oracle SAX parser does not have the same problem.
So my question now is - does the SAX parser still retain cr characters (or is it too now converting them to nl) and if it does, how do I make XSLProcessor.processXSL() use it rather than the default XML parser? Can I do it from within my code, or does it need to be set in some sort of environment variable? We are on version 9.0.5.2 of JDeveloper(10g)

Repost

How to get a specific tag value from SAX parser

I am using the SAX method to parse my xml file.
My Question is how to get the returning characters parsed after calling?
esp the value of <body> tag?
Here is my xml file, and i want to get the parsed <body> value after call sax parser.
<?xml version="1.0" encoding="UTF-8"?>
<article>
<content>
<title>floraaaaa</title>
<date>2004-03-19</date>
<body>
Details of an article, and i want to get the article details
</body>
</content>
</article>

here is the parser code I am using:
import java.io.*;
import org.apache.xerces.parsers.SAXParser;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.ErrorHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;
public class test2 {
     public String m_xmlDetail;
     public void readDetail(String url) {
          System.out.println("Parsing XML File: " + url + "\n\n");
          try {
               XMLReader parser = new SAXParser();
               ContentHandler contentHandler = new MyContentHandler();
               parser.setContentHandler(contentHandler);
               parser.parse(url);
          } //try ends here
          catch (IOException e) {
               System.out.println("Error reading URI: " + e.getMessage());
          } //catch ends here
          catch (SAXException e) {
               System.out.println("Error in parsing: " + e.getMessage());
          } //catch ends here
     } //function
}//close class
public class MyContentHandler implements ContentHandler {
     private Locator locator;
     //public String m_bodyDetail=new String();
     public void setDocumentLocator(Locator locator) {
          System.out.println(" * setDocumentLocator() called");
          this.locator = locator;
     public void startDocument() throws SAXException {
          System.out.println("Parsing begins...");
     public void endDocument() throws SAXException {
          System.out.println("...Parsing ends.");
     public void processingInstruction(String target, String data)throws SAXException {
          System.out.println("PI: Target:" + target + " and Data:" + data);
     public void startPrefixMapping(String prefix, String uri) {
          System.out.println("Mapping starts for prefix " + prefix + " mapped to URI " + uri);
     public void endPrefixMapping(String prefix) {
          System.out.println("Mapping ends for prefix " + prefix);
     public void startElement(String namespaceURI, String localName,String rawName, Attributes atts)throws SAXException {
          System.out.print("startElement: " + localName);
          if (!namespaceURI.equals("")) {
               System.out.println(" in namespace " + namespaceURI + " (" + rawName + ")");
          else {
               System.out.println(" has no associated namespace");
          for (int i=0; i<atts.getLength(); i++)
               System.out.println(" Attribute: " + atts.getLocalName(i) +"=" + atts.getValue(i));
     public void endElement(String namespaceURI, String localName, String rawName) throws SAXException {
          System.out.println("endElement: " + localName + "\n");
     public void characters(char[] ch, int start, int end) throws SAXException {
          String s = new String(ch, start, end);
          System.out.println("characters: " + s);
     public void ignorableWhitespace(char[] ch, int start, int end)throws SAXException {
          String s = new String(ch, start, end);
          System.out.println("ignorableWhitespace: [" + s + "]");
     public void skippedEntity(String name) throws SAXException {
          System.out.println("Skipping entity " + name);
} //close class

Problem in parsing an XML using SAX parser

Hai All,
I have got a problem in parsing an XML using SAX parser.
I have an XML (sample below) which need to be parsed
<line-items>
<item num="1">
     <part-number>PN1234</part-number>
     <quantity uom="ea">10</quantity>
     <lpn>LPN1060</lpn>
     <reference num="1">Line ref 1</reference>
     <reference num="2">Line ref 2</reference>
     <reference num="3">Line ref 3</reference>
</item>
<item num="2">
     <part-number>PN1527</part-number>
     <quantity uom="lbs">5</quantity>
     <lpn>LPN2152</lpn>
     <reference num="1">Line ref 1</reference>
     <reference num="2">Line ref 2</reference>
     <reference num="3">Line ref 3</reference>
</item>
<item num="n">
</item>
</line-items>
There can be any number of items( 1 to n). I need to parse these
item values using SAX parser and invoke a stored procedure for
each item with its
values(partnumber,qty,lpn,refnum1,refnum2,refnum3).
Suppose if there are 100 items, i need to invoke the stored
procedure sp1() 100 times for each item.
I need to invoke the stored procedure in endDocument() method of
SAX event handler and not in endelement() method.
What is the best way to store those values and invoke the stored
procedure in enddocument() method.
Any help would br greatly appreciated.
Thanks in advance
Pooja.

VO or ValueObject is a trendy new name for Beans.
So just create an item class with variables for each of the sub elements.
<item>
<part-number>PN1234</part-number>
<quantity uom="ea">10</quantity>
<lpn>LPN1060</lpn>
<reference num="1">Line ref 1</reference>
<reference num="2">Line ref 2</reference>
<reference num="3">Line ref 3</reference>
</item>
public class ItemVO
String partNumber;
int quantity;
String quantityType;
String lpn;
List references = new ArrayList();
* @return Returns the lpn.
public String getLpn()
return this.lpn;
* @param lpn The lpn to set.
public void setLpn(String lpn)
this.lpn = lpn;
* @return Returns the partNumber.
public String getPartNumber()
return this.partNumber;
* @param partNumber The partNumber to set.
public void setPartNumber(String partNumber)
this.partNumber = partNumber;
* @return Returns the quantity.
public int getQuantity()
return this.quantity;
* @param quantity The quantity to set.
public void setQuantity(int quantity)
this.quantity = quantity;
* @return Returns the quantityType.
public String getQuantityType()
return this.quantityType;
* @param quantityType The quantityType to set.
public void setQuantityType(String quantityType)
this.quantityType = quantityType;
* @return Returns the references.
public List getReferences()
return this.references;
* @param references The references to set.
public void setReferences(List references)
this.references = references;

Problem in using SAX parser.

Hai All,
I have got a problem in using SAX parser.
My XML looks like this:
<authorizer>
<first-name>HP</first-name>
<last-name>Services</last-name>
<phone>800-22-1984</phone>
</authorizer>
<destination>
<first-name>John</first-name>
<last-name>Doe</last-name>
<company>John Doe Enterprises, Inc.</company>
<department>Manufacturing</department>
<phone>800-555-1234</phone>
<address>
<street-one>1654 Peachtree Str</street-one>
<street-two>Suite Y</street-two>
<city>Atlanta</city>
<province>GA</province>
<country>US</country>
<postal-code>30326</postal-code>
</address>
</destination>
my part of SAX parser code is:
public void startElement (String name, AttributeList attrs)
throws SAXException
accumulator.setLength(0);
public void characters (char buf [], int offset, int len)
throws SAXException
accumulator.append(buf, offset, len);
public void endElement (String name)
throws SAXException
if (name.equals("first-name") )
firstname=accumulator.toString().trim();
if (name.equals("last-name"))
lastname=accumulator.toString().trim();
My problem is that i have to store the values of first-name and last-name.
but i have that in both
<authorizer> </authorizer> Tag and
<destination> </destination>
I need to retrive authorizer's firstname,lastname and
destination's firstname and lastname.
what i mean is i need to store authorizerFirstName,authorizerLastName
destinationFirstname and destinationLastname.
Pls let me know how to do that.
Thanks in advance.
Pooja.

hi pooja,
I think you are using DataHandler for parsing. Its deprecated. try using contentHandler . You can get the value of the element at the beginning. say for example
<firstname>sdfs</firstname>
the startElement will be firstname
the next method that it invokes will be characters method which has the text associated with the element. I am sending a sample code for your problem. try using it .
boolean m_boolinAuth = false;
boolean m_boolinDest = false;
boolean m_bAuthFName = false;
boolean m_bAuthLName = false;
public void startElement(String namespaceURI, String elementName, String qName, Attributes atts)
//does the logic for startElement
if(qName.equals("Authorization"))
m_boolinAuth = true;
m_boolinDest = false;
else if(qName.equals("Destination"))
m_boolinDest = true;
m_boolinAuth = false;
if(qName.equals("firstname"))
m_bFirstName = true;
if(qName.equals("lastname"))
m_bLastName = true;
public void characters(char[] ch, int start, int length)
//does the logic for characters.
String str = new String(ch,start,length);
if(m_bFirstName)
if(m_boolinAuth)
m_strAuthFirstName =str;
else if(m_boolinDest)
m_strDestFirstName = str;
m_bFirstName = false;
if(m_bLastName)
//same as first name case;
}

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 in Webdynpro for Java

Hi,
     Scenario : To get data entered in the Dynamic table of an online PDF form.
I have got the XML of the PDF form. The problem is with Parsing the XML to get the data.
I am using SAX parser. The code structure is as given,
public class Outercomp
    getPDFData(IS);    // IS is the Inputstream of the PDF XML
   // begin Others
   public static class inner extends DefaultHandler
        void getPDFData(InputStream IS)
              SAXParserFactory SAXfac = SAXParserFactory.newInstance();
              SAXParser SAX = SAXfac.newSAXParser();
              SAX.parse(IS, new Outer.Inner());
        void startElement()
             // some Code
Problem :
I am getting the below exception at calling the method 'parse'.
com.sap.engine.lib.xml.parser.NestedSAXParserException: Generic Exception: -> java.lang.NullPointerexception
I checked both 'IS' and 'new Outer.Inner()', both are not null.
Please give me a solution
Thanks,
Prabhakar

Hi Satyajit,
     ' DefaultHandler ' is a class, and I am extending it.
     First I missed it in the code, now I have changed it. Thanks for reminding me.
Thanks,
Prabhakar

SAX Parser method charaters trouble

Similar Messages

Maybe you are looking for