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Reorganize the SAX event pipeline, this fixes the problem of slow parsing when the namespace is not correct

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git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@350057 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
ltheussl 2005-11-30 21:32:02 +00:00
parent cbd121a8be
commit 8158ed0a6a
2 changed files with 88 additions and 77 deletions
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73
plugin/src/main/org/apache/maven/JaxpMsvBean.java
View File

@ -66,6 +66,7 @@ public class JaxpMsvBean
private static final int MSV_FATAL_ERROR = 2;
private boolean isValid = true;
private boolean validNamespace = true;
private XPathLocationTracker tracker;
//~ Methods --------------------------------------------------------------
@ -82,18 +83,20 @@ public class JaxpMsvBean
verifier.setErrorHandler( new ErrorHandlerImpl() );
VerifierHandler handler = verifier.getVerifierHandler();
tracker = new XPathLocationTracker( handler );
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setNamespaceAware( true );
factory.setValidating( false );
XMLReader reader = factory.newSAXParser().getXMLReader();
reader.setContentHandler( tracker );
reader.setEntityResolver( new EntityResolverImpl() );
reader.parse( new InputSource( new FileInputStream( file ) ) );
tracker = new XPathLocationTracker();
tracker.setParent( reader );
tracker.setContentHandler( handler );
tracker.setEntityResolver( new EntityResolverImpl() );
tracker.parse( new InputSource( new FileInputStream( file ) ) );
endMessage();
}
@ -101,7 +104,7 @@ public class JaxpMsvBean
* Sets the schema.
* @param newSchema The schema to set
*/
public void setSchema(String newSchema)
public void setSchema( String newSchema )
{
this.schema = newSchema;
}
@ -110,7 +113,7 @@ public class JaxpMsvBean
* Sets the file.
* @param newFile The file to set
*/
public void setFile(String newFile)
public void setFile( String newFile )
{
this.file = newFile;
}
@ -138,33 +141,36 @@ public class JaxpMsvBean
if ( isValid )
{
log.info( file + " verified: OK" );
} else {
}
else
{
log.info( file + " is NOT valid!" );
}
}
private void setValid(boolean valid)
{
this.isValid = valid;
}
private void errorMessage(SAXParseException e, int type)
private void errorMessage( SAXParseException e, int type )
{
File xmlFile = new File( file );
if ( type == MSV_ERROR )
{
// if namespace is not correct, error messages are crap
if ( validNamespace )
{
log.error( " ERROR on line " + e.getLineNumber()
+ " of file " + xmlFile.getName() + "," );
log.error( " XPath location " + tracker.getXPath() + ":" );
log.error( " " + e.getMessage() );
} else if ( type == MSV_FATAL_ERROR )
}
}
else if ( type == MSV_FATAL_ERROR )
{
log.error( " Non-recoverable parsing error on line "
+ e.getLineNumber() + " of file " + xmlFile.getName() + "," );
log.error( " XPath location " + tracker.getXPath() + ":" );
log.error( " " + e.getMessage() );
} else if ( type == MSV_WARNING )
}
else if ( type == MSV_WARNING )
{
log.warn( " WARNING on line " + e.getLineNumber()
+ " of file " + xmlFile.getName() + "," );
@ -175,45 +181,36 @@ public class JaxpMsvBean
private class ErrorHandlerImpl implements ErrorHandler
{
public void warning(SAXParseException e) throws SAXException
public void warning( SAXParseException e ) throws SAXException
{
errorMessage( e, MSV_WARNING );
throw e;
}
public void error(SAXParseException e) throws SAXException
public void error( SAXParseException e ) throws SAXException
{
/*if (e.getMessage() != null && e.getMessage().indexOf("xsi:schemaLocation") > -1)
{
// unexpected attribute "xsi:schemaLocation"
// ignore, this is due to a valid xsd declaration
// Jaxp ignores additionals namespaces declared in the xml file (xmlns:xsi) and it can't validate
// using multiple schema at once
return;
}*/
errorMessage( e, MSV_ERROR) ;
setValid( false );
errorMessage( e, MSV_ERROR);
isValid = false;
if ( e.getMessage() != null
&& e.getMessage().startsWith("namespace URI of tag") )
{
// Fail the build if namespace declaration is wrong.
// Otherwise parsing seems to hang after the first element.
throw new SAXException( e );
validNamespace = false;
}
throw e;
}
}
public void fatalError(SAXParseException e) throws SAXException
public void fatalError( SAXParseException e ) throws SAXException
{
errorMessage( e, MSV_FATAL_ERROR );
setValid( false );
isValid = false;
throw e;
}
}
private class EntityResolverImpl implements EntityResolver
{
public InputSource resolveEntity(String publicId,
String systemId) throws SAXException
public InputSource resolveEntity( String publicId,
String systemId ) throws SAXException
{
log.warn( " WARNING: External entity " + systemId
+ " won't be resolved" );

86
plugin/src/main/org/apache/maven/XPathLocationTracker.java
View File

@ -21,8 +21,8 @@ import java.util.HashMap;
import java.util.Map;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.XMLFilterImpl;
/**
@ -31,36 +31,26 @@ import org.xml.sax.helpers.XMLFilterImpl;
*
* @author <a href="mailto:ltheussl@apache.org">Lukas Theussl</a>
*/
public class XPathLocationTracker extends XMLFilterImpl
{
private State state;
private static final Integer[] ints = new Integer[]
{
new Integer(0),
new Integer(1),
new Integer(2),
new Integer(3),
new Integer(4)
new Integer( 0 ),
new Integer( 1 ),
new Integer( 2 ),
new Integer( 3 ),
new Integer( 4 )
};
/**
* Constructor: sets the ContentHandler.
* @param handler The ContentHandler
*/
public XPathLocationTracker( ContentHandler handler )
{
setContentHandler(handler);
}
/**
* Overriding ContentHandler.
* @throws SAXException SAXException
*/
public void startDocument() throws SAXException
{
state = new State(null);
state = new State( null );
super.startDocument();
}
@ -82,11 +72,19 @@ public class XPathLocationTracker extends XMLFilterImpl
* @param atts atts
* @throws SAXException SAXException
*/
public void startElement(String uri, String localName,
String qName, Attributes atts) throws SAXException
public void startElement( String uri, String localName,
String qName, Attributes atts ) throws SAXException
{
state = state.push(qName);
super.startElement(uri, localName, qName, atts);
state = state.push( qName );
try
{
super.startElement( uri, localName, qName, atts );
}
catch ( SAXParseException e )
{
// ignored on purpose: just avoid to throw an exception here
// it is thrown by the ErrorHandler in JaxpMsvBean instead
}
}
/**
@ -96,10 +94,18 @@ public class XPathLocationTracker extends XMLFilterImpl
* @param qName qName
* @throws SAXException SAXException
*/
public void endElement(String uri, String localName, String qName)
public void endElement( String uri, String localName, String qName )
throws SAXException
{
super.endElement(uri, localName, qName);
try
{
super.endElement( uri, localName, qName );
}
catch ( SAXParseException e )
{
// ignored on purpose: just avoid to throw an exception here
// it is thrown by the ErrorHandler in JaxpMsvBean instead
}
state = state.pop();
}
@ -114,17 +120,19 @@ public class XPathLocationTracker extends XMLFilterImpl
if ( state == null )
{
throw new IllegalStateException(
"startDocument event is not invoked");
"startDocument event is not invoked" );
}
return state.getXPath();
}
private static Integer getInt(int i)
private static Integer getInt( int i )
{
if ( i < ints.length )
{
return ints[i];
} else {
}
else
{
return new Integer(i);
}
}
@ -148,8 +156,10 @@ public class XPathLocationTracker extends XMLFilterImpl
currentName = rawName;
if ( child == null )
{
child = new State(this);
} else {
child = new State( this );
}
else
{
child.reset();
}
return child;
@ -163,14 +173,16 @@ public class XPathLocationTracker extends XMLFilterImpl
private void count( String rawName )
{
Integer i = (Integer) counter.get(rawName);
Integer i = (Integer) counter.get( rawName );
if ( i == null )
{
i = getInt(1);
} else {
i = getInt(i.intValue() + 1);
i = getInt( 1 );
}
counter.put(rawName, i);
else
{
i = getInt( i.intValue() + 1 );
}
counter.put( rawName, i );
}
private void reset()
@ -185,16 +197,18 @@ public class XPathLocationTracker extends XMLFilterImpl
if ( parent == null ) // root
{
xPath = "/";
if ( currentName != null)
if ( currentName != null )
{
xPath += currentName;
}
} else { // child node
}
else // child node
{
xPath = parent.getXPath();
if ( currentName != null )
{
xPath += '/' + currentName;
Integer i = (Integer) counter.get(currentName);
Integer i = (Integer) counter.get( currentName );
xPath += '[' + i.toString() + ']';
}
}