org.drools.xml
Class ExtensibleXmlParser

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      org.drools.xml.ExtensibleXmlParser

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class ExtensibleXmlParser
extends DefaultHandler

RuleSet loader. Note you can override the default entity resolver by setting the System property of: org.drools.io.EntityResolve to your own custom entity resolver. This can be done using -Dorg.drools.io.EntityResolver=YourClassHere on the command line, for instance.

Nested Class Summary

static class

ExtensibleXmlParser.Null

Field Summary

static String	ENTITY_RESOLVER_PROPERTY_NAME
static String	RULES_NAMESPACE_URI Namespace URI for the general tags.

Constructor Summary

ExtensibleXmlParser()
Construct.

ExtensibleXmlParser(SAXParser parser)
Construct.

Method Summary

void	characters(char[] chars, int start, int len)
void	endElement(String uri, String localName, String qname)
Element	endElementBuilder() End a configuration node.
void	endPrefixMapping(String prefix)
void	error(SAXParseException x)
void	fatalError(SAXParseException x)
ClassLoader	getClassLoader()
Object	getCurrent()
Object	getData()
Locator	getLocator() Get the Locator.
Map	getMetaData()
Object	getParent()
Object	getParent(Class parent)
Object	getParent(int index)
LinkedList	getParents()
Object	getPeer()
int	getTimeout() Timeout for retrieving remote resources
Object	read(InputSource in) Read a RuleSet from an InputSource.
Object	read(InputStream inputStream) Read a RuleSet from an InputStream.
Object	read(Reader reader) Read a RuleSet from a Reader.
Object	removeParent()
InputSource	resolveEntity(String publicId, String systemId)
void	setClassLoader(ClassLoader classLoader)
void	setData(Object data)
void	setDocumentLocator(Locator locator)
void	setSemanticModules(SemanticModules modules)
void	setTimeout(int timeout) Sets the timeout for retrieving remote resources, e.g. xsd schemas
void	startDocument()
void	startElement(String uri, String localName, String qname, Attributes attrs)
void	startElementBuilder(String tagName, Attributes attrs) Start a configuration node.
void	startPrefixMapping(String prefix, String uri)
void	warning(SAXParseException x)

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endDocument, ignorableWhitespace, notationDecl, processingInstruction, skippedEntity, unparsedEntityDecl

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ENTITY_RESOLVER_PROPERTY_NAME

public static final String ENTITY_RESOLVER_PROPERTY_NAME

See Also:

Constant Field Values

RULES_NAMESPACE_URI

public static final String RULES_NAMESPACE_URI

Namespace URI for the general tags.

See Also:

Constant Field Values

Constructor Detail

ExtensibleXmlParser

public ExtensibleXmlParser()

Construct.

Uses the default JAXP SAX parser and the default classpath-based DefaultSemanticModule.

ExtensibleXmlParser

public ExtensibleXmlParser(SAXParser parser)

Construct.

Uses the default classpath-based DefaultSemanticModule.

Parameters:

parser - The SAX parser.

Method Detail

setSemanticModules

public void setSemanticModules(SemanticModules modules)

read

public Object read(Reader reader)
            throws SAXException,
                   IOException

Read a RuleSet from a Reader.

Parameters:

reader - The reader containing the rule-set.

Returns:

The rule-set.

Throws:

ParserConfigurationException

SAXException

IOException

read

public Object read(InputStream inputStream)
            throws SAXException,
                   IOException

Read a RuleSet from an InputStream.

Parameters:

inputStream - The input-stream containing the rule-set.

Returns:

The rule-set.

Throws:

ParserConfigurationException

SAXException

IOException

read

public Object read(InputSource in)
            throws SAXException,
                   IOException

Read a RuleSet from an InputSource.

Parameters:

in - The rule-set input-source.

Returns:

The rule-set.

Throws:

ParserConfigurationException

SAXException

IOException

setData

public void setData(Object data)

getData

public Object getData()

getClassLoader

public ClassLoader getClassLoader()

setClassLoader

public void setClassLoader(ClassLoader classLoader)

getMetaData

public Map getMetaData()

setDocumentLocator

public void setDocumentLocator(Locator locator)

Specified by:

setDocumentLocator in interface ContentHandler

Overrides:

setDocumentLocator in class DefaultHandler

See Also:

ContentHandler

getLocator

public Locator getLocator()

Get the Locator.

Returns:

The locator.

startDocument

public void startDocument()

Specified by:

startDocument in interface ContentHandler

Overrides:

startDocument in class DefaultHandler

startElement

public void startElement(String uri,
                         String localName,
                         String qname,
                         Attributes attrs)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Parameters:

uri -

localName -

qname -

attrs -

Throws:

SAXException

See Also:

ContentHandler

endElement

public void endElement(String uri,
                       String localName,
                       String qname)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Parameters:

uri -

localName -

qname -

Throws:

SAXException

See Also:

ContentHandler

startElementBuilder

public void startElementBuilder(String tagName,
                                Attributes attrs)

Start a configuration node.

Parameters:

tagName - Tag name.

attrs - Tag attributes.

characters

public void characters(char[] chars,
                       int start,
                       int len)

Specified by:

characters in interface ContentHandler

Overrides:

characters in class DefaultHandler

Parameters:

chars -

start -

len -

See Also:

ContentHandler

endElementBuilder

public Element endElementBuilder()

End a configuration node.

Returns:

The configuration.

getParent

public Object getParent()

getParent

public Object getParent(int index)

removeParent

public Object removeParent()

getParents

public LinkedList getParents()

getParent

public Object getParent(Class parent)

getPeer

public Object getPeer()

getCurrent

public Object getCurrent()

resolveEntity

public InputSource resolveEntity(String publicId,
                                 String systemId)
                          throws SAXException

Specified by:

resolveEntity in interface EntityResolver

Overrides:

resolveEntity in class DefaultHandler

Throws:

SAXException

startPrefixMapping

public void startPrefixMapping(String prefix,
                               String uri)
                        throws SAXException

Specified by:

startPrefixMapping in interface ContentHandler

Overrides:

startPrefixMapping in class DefaultHandler

Throws:

SAXException

endPrefixMapping

public void endPrefixMapping(String prefix)
                      throws SAXException

Specified by:

endPrefixMapping in interface ContentHandler

Overrides:

endPrefixMapping in class DefaultHandler

Throws:

SAXException

warning

public void warning(SAXParseException x)

Specified by:

warning in interface ErrorHandler

Overrides:

warning in class DefaultHandler

error

public void error(SAXParseException x)

Specified by:

error in interface ErrorHandler

Overrides:

error in class DefaultHandler

fatalError

public void fatalError(SAXParseException x)
                throws SAXParseException

Specified by:

fatalError in interface ErrorHandler

Overrides:

fatalError in class DefaultHandler

Throws:

SAXParseException

getTimeout

public int getTimeout()

Timeout for retrieving remote resources

Returns:

setTimeout

public void setTimeout(int timeout)

Sets the timeout for retrieving remote resources, e.g. xsd schemas

Parameters:

timeout -