case Node.ELEMENT_NODE:
elementNodes++;
NodeList children = node.getChildNodes();
if (children != null)
{
int len = children.getLength();
for (int i = 0; i < len; i++)
scanDOMTree(children.item(i));
}
break;
case Node.ENTITY_REFERENCE_NODE:
entityReferenceNodes++;
break;
case Node.CDATA_SECTION_NODE:
cdataSections++;
break;
case Node.TEXT_NODE:
textNodes++;
break;
case Node.PROCESSING_INSTRUCTION_NODE:
processingInstructions++;
break;
}
}
/** Main program entry point. */
public static void main(String argv[])
{
if (argv.length == 0)
{
System.out.println("Usage: java domCounter uri");
System.out.println(" where uri is the URI of your XML document.");
System.out.println(" Sample: java domCounter sonnet.xml");
System.exit(1);
}
domCounter dc = new domCounter();
dc.parseAndCount(argv[0]);
}
}
saxOne.java
/*
* (C) Copyright IBM Corp. 1999 All rights reserved.
*
* US Government Users Restricted Rights Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
*
* The program is provided "as is" without any warranty express or
* implied, including the warranty of non-infringement and the implied
* warranties of merchantibility and fitness for a particular purpose.
* IBM will not be liable for any damages suffered by you as a result
* of using the Program. In no event will IBM be liable for any
* special, indirect or consequential damages or lost profits even if
* IBM has been advised of the possibility of their occurrence. IBM
* will not be liable for any third party claims against you.
*/
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import org.xml.sax.AttributeList;
import org.xml.sax.HandlerBase;
import org.xml.sax.Parser;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.ParserFactory;
import com.ibm.xml.parsers.SAXParser;
/**
* saxOne.java
* This sample program illustrates how to use a SAX parser. It
* parses a document and writes the document? contents back to
* standard output.
*/
public class saxOne
extends HandlerBase
{
public void parseURI(String uri)
{
SAXParser parser = new SAXParser();
parser.setDocumentHandler(this);
parser.setErrorHandler(this);
try
{
parser.parse(uri);
}
catch (Exception e)
{
System.err.println(e);
}
}
/** Processing instruction. */
public void processingInstruction(String target, String data)
{
System.out.print("System.out.print(target);
if (data != null && data.length() > 0)
{
System.out.print(` `);
System.out.print(data);
}
System.out.print("?>");
}
/** Start document. */
public void startDocument()
{
System.out.println("");
}
/** Start element. */
public void startElement(String name, AttributeList attrs)
{
System.out.print("<");
System.out.print(name);
if (attrs != null)
{
int len = attrs.getLength();
for (int i = 0; i < len; i++)
{
System.out.print(" ");
System.out.print(attrs.getName(i));
System.out.print("="");
System.out.print(attrs.getValue(i));
System.out.print(""");
}
}
System.out.print(">");
}
/** Characters. */
public void characters(char ch[], int start, int length)
{
System.out.print(new String(ch, start, length));
}
/** Ignorable whitespace. */
public void ignorableWhitespace(char ch[], int start, int length)
{
characters(ch, start, length);
}
/** End element. */
public void endElement(String name)
{
System.out.print("System.out.print(name);
System.out.print(">");
}
/** End document. */
public void endDocument()
{
// No need to do anything.
}
//
// ErrorHandler methods
//
/** Warning. */
public void warning(SAXParseException ex)
{
System.err.println("[Warning] "+
getLocationString(ex)+": "+
ex.getMessage());
}
/** Error. */
public void error(SAXParseException ex)
{
System.err.println("[Error] "+
getLocationString(ex)+": "+
ex.getMessage());
}
/** Fatal error. */
public void fatalError(SAXParseException ex)
throws SAXException
{
System.err.println("[Fatal Error] "+
getLocationString(ex)+": "+
ex.getMessage());
throw ex;
}
/** Returns a string of the location. */
private String getLocationString(SAXParseException ex)
{
StringBuffer str = new StringBuffer();
String systemId = ex.getSystemId();
if (systemId != null)
{
int index = systemId.lastIndexOf(`/`);
if (index != -1)
systemId = systemId.substring(index + 1);
str.append(systemId);
}
str.append(`:`);
str.append(ex.getLineNumber());
str.append(`:`);
str.append(ex.getColumnNumber());
return str.toString();
}
/** Main program entry point. */
public static void main(String argv[])
{
if (argv.length == 0)
{
System.out.println("Usage: java saxOne uri");
System.out.println(" where uri is the URI of your XML document.");
System.out.println(" Sample: java saxOne sonnet.xml");
System.exit(1);
}
saxOne s1 = new saxOne();
s1.parseURI(argv[0]);
}
}
saxCounter.java
/*
* (C) Copyright IBM Corp. 1999 All rights reserved.
*
* US Government Users Restricted Rights Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
*
* The program is provided "as is" without any warranty express or
* implied, including the warranty of non-infringement and the implied
* warranties of merchantibility and fitness for a particular purpose.
* IBM will not be liable for any damages suffered by you as a result
* of using the Program. In no event will IBM be liable for any
* special, indirect or consequential damages or lost profits even if
* IBM has been advised of the possibility of their occurrence. IBM
* will not be liable for any third party claims against you.
*/
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import org.xml.sax.AttributeList;
import org.xml.sax.HandlerBase;
import org.xml.sax.Parser;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.ParserFactory;
import com.ibm.xml.parsers.SAXParser;
/**
* saxCounter.java
* This sample program calculates statistics for an XML document,
* based on the SAX events received. When the parse is complete,
* it prints the statistics to standard output.
*/
public class saxCounter
extends HandlerBase
{
int startDocumentEvents = 0;
int endDocumentEvents = 0;
int startElementEvents = 0;
int endElementEvents = 0;
int processingInstructionEvents = 0;
int characterEvents = 0;
int ignorableWhitespaceEvents = 0;
int warningEvents = 0;
int errorEvents = 0;
int fatalErrorEvents = 0;
public void parseURI(String uri)
{
SAXParser parser = new SAXParser();
parser.setDocumentHandler(this);
parser.setErrorHandler(this);
try
{
parser.parse(uri);
}
catch (Exception e)
{
System.err.println(e);
}
System.out.println("Document Statistics for " + uri + ":");
System.out.println("====================================");
System.out.println("DocumentHandler Events:");
System.out.println(" startDocument " +
startDocumentEvents);
System.out.println(" endDocument " +
endDocumentEvents);
System.out.println(" startElement " +
startElementEvents);
System.out.println(" endElement " +
endElementEvents);
System.out.println(" processingInstruction " +
processingInstructionEvents);
System.out.println(" character " +
characterEvents);
System.out.println(" ignorableWhitespace " +
ignorableWhitespaceEvents);
System.out.println("ErrorHandler Events:");
System.out.println(" warning " +
warningEvents);
System.out.println(" error " +
errorEvents);
System.out.println(" fatalError " +
fatalErrorEvents);
System.out.println(" ----------");
int totalEvents = startDocumentEvents + endDocumentEvents +
startElementEvents + endElementEvents +
processingInstructionEvents +
characterEvents + ignorableWhitespaceEvents +
warningEvents + errorEvents + fatalErrorEvents;
System.out.println("Total: " +
totalEvents + " Events");
}
/** Processing instruction. */
public void processingInstruction(String target, String data)
{
processingInstructionEvents++;
}
/** Start document. */
public void startDocument()
{
startDocumentEvents++;
}
/** Start element. */
public void startElement(String name, AttributeList attrs)
{
startElementEvents++;
}
/** Characters. */
public void characters(char ch[], int start, int length)
{
characterEvents++;
}
/** Ignorable whitespace. */
public void ignorableWhitespace(char ch[], int start, int length)
{
ignorableWhitespaceEvents++;
}
/** End element. */
public void endElement(String name)
{
endElementEvents++;
}
/** End document. */
public void endDocument()
{
endDocumentEvents++;
}
//
// ErrorHandler methods
//
/** Warning. */
public void warning(SAXParseException ex)
{
warningEvents++;
}
/** Error. */
public void error(SAXParseException ex)
{
errorEvents++;
}
/** Fatal error. */
public void fatalError(SAXParseException ex)
throws SAXException
{
fatalErrorEvents++;
throw ex;
}
/** Main program entry point. */
public static void main(String argv[])
{
if (argv.length == 0)
{
System.out.println("Usage: java saxCounter uri");
System.out.println(" where uri is the URI of your XML document.");
System.out.println(" Sample: java saxCounter sonnet.xml");
System.exit(1);
}
saxCounter sc = new saxCounter();
sc.parseURI(argv[0]);
} }
