Package org.htmlunit.cyberneko.xerces.parsers

Class AbstractSAXParser

  • All Implemented Interfaces:
    XMLDocumentHandler, XMLReader
    Direct Known Subclasses:
    SAXParser
    public abstract class AbstractSAXParser
extends AbstractXMLDocumentParser
implements XMLReader
    This is the base class of all SAX parsers. It implements both the SAX1 and SAX2 parser functionality, while the actual pipeline is defined in the parser configuration.
    Author:
    Arnaud Le Hors, IBM, Andy Clark, IBM

    • Field Detail

      • fNamespaces

        protected boolean fNamespaces
        Namespaces.

      • fNamespacePrefixes

        protected boolean fNamespacePrefixes
        Namespace prefixes.

      • fLexicalHandlerParameterEntities

        protected boolean fLexicalHandlerParameterEntities
        Lexical handler parameter entities.

      • fStandalone

        protected boolean fStandalone
        Standalone document declaration.

      • fNamespaceContext

        protected NamespaceContext fNamespaceContext
        Namespace context

      • fVersion

        protected String fVersion

    • Method Detail

      • startDocument

        public void startDocument​(XMLLocator locator,
                          String encoding,
                          NamespaceContext namespaceContext,
                          Augmentations augs)
                   throws XNIException
        The start of the document.
        Specified by:
        startDocument in interface XMLDocumentHandler
        Overrides:
        startDocument in class AbstractXMLDocumentParser
        Parameters:
        locator - The document locator, or null if the document location cannot be reported during the parsing of this document. However, it is strongly recommended that a locator be supplied that can at least report the system identifier of the document.
        encoding - The auto-detected IANA encoding name of the entity stream. This value will be null in those situations where the entity encoding is not auto-detected (e.g. internal entities or a document entity that is parsed from a java.io.Reader).
        namespaceContext - The namespace context in effect at the start of this document. This object represents the current context. Implementors of this class are responsible for copying the namespace bindings from the the current context (and its parent contexts) if that information is important.
        augs - Additional information that may include infoset augmentations
        Throws:
        XNIException - Thrown by handler to signal an error.

      • xmlDecl

        public void xmlDecl​(String version,
                    String encoding,
                    String standalone,
                    Augmentations augs)
             throws XNIException
        Notifies of the presence of an XMLDecl line in the document. If present, this method will be called immediately following the startDocument call.
        Specified by:
        xmlDecl in interface XMLDocumentHandler
        Overrides:
        xmlDecl in class AbstractXMLDocumentParser
        Parameters:
        version - The XML version.
        encoding - The IANA encoding name of the document, or null if not specified.
        standalone - The standalone value, or null if not specified.
        augs - Additional information that may include infoset augmentations
        Throws:
        XNIException - Thrown by handler to signal an error.

      • doctypeDecl

        public void doctypeDecl​(String rootElement,
                        String publicId,
                        String systemId,
                        Augmentations augs)
                 throws XNIException
        Notifies of the presence of the DOCTYPE line in the document.
        Specified by:
        doctypeDecl in interface XMLDocumentHandler
        Overrides:
        doctypeDecl in class AbstractXMLDocumentParser
        Parameters:
        rootElement - The name of the root element.
        publicId - The public identifier if an external DTD or null if the external DTD is specified using SYSTEM.
        systemId - The system identifier if an external DTD, null otherwise.
        augs - Additional information that may include infoset augmentations
        Throws:
        XNIException - Thrown by handler to signal an error.

      • startElement

        public void startElement​(QName element,
                         XMLAttributes attributes,
                         Augmentations augs)
                  throws XNIException
        The start of an element. If the document specifies the start element by using an empty tag, then the startElement method will immediately be followed by the endElement method, with no intervening methods.
        Specified by:
        startElement in interface XMLDocumentHandler
        Overrides:
        startElement in class AbstractXMLDocumentParser
        Parameters:
        element - The name of the element.
        attributes - The element attributes.
        augs - Additional information that may include infoset augmentations
        Throws:
        XNIException - Thrown by handler to signal an error.

      • processingInstruction

        public void processingInstruction​(String target,
                                  XMLString data,
                                  Augmentations augs)
                           throws XNIException
        A processing instruction. Processing instructions consist of a target name and, optionally, text data. The data is only meaningful to the application.

        Typically, a processing instruction's data will contain a series of pseudo-attributes. These pseudo-attributes follow the form of element attributes but are not parsed or presented to the application as anything other than text. The application is responsible for parsing the data.

        Specified by:
        processingInstruction in interface XMLDocumentHandler
        Overrides:
        processingInstruction in class AbstractXMLDocumentParser
        Parameters:
        target - The target.
        data - The data or null if none specified.
        augs - Additional information that may include infoset augmentations
        Throws:
        XNIException - Thrown by handler to signal an error.

      • parse

        public void parse​(String systemId)
           throws SAXException,
                  IOException
        Parses the input source specified by the given system identifier.

        This method is equivalent to the following: 

         parse(new InputSource(systemId));
        Specified by:
        parse in interface XMLReader
        Parameters:
        systemId - The system identifier (URI).
        Throws:
        SAXException - Throws exception on SAX error.
        IOException - Throws exception on i/o error.

      • setErrorHandler

        public void setErrorHandler​(ErrorHandler errorHandler)
        Allow an application to register an error event handler.

        If the application does not register an error handler, all error events reported by the SAX parser will be silently ignored; however, normal processing may not continue. It is highly recommended that all SAX applications implement an error handler to avoid unexpected bugs.

        Applications may register a new or different handler in the middle of a parse, and the SAX parser must begin using the new handler immediately.

        Specified by:
        setErrorHandler in interface XMLReader
        Parameters:
        errorHandler - The error handler.
        See Also:
        getErrorHandler()

      • setDTDHandler

        public void setDTDHandler​(DTDHandler dtdHandler)
        Allow an application to register a DTD event handler.

        If the application does not register a DTD handler, all DTD events reported by the SAX parser will be silently ignored.

        Applications may register a new or different handler in the middle of a parse, and the SAX parser must begin using the new handler immediately.

        Specified by:
        setDTDHandler in interface XMLReader
        Parameters:
        dtdHandler - The DTD handler.
        See Also:
        getDTDHandler()

      • setContentHandler

        public void setContentHandler​(ContentHandler contentHandler)
        Allow an application to register a content event handler.

        If the application does not register a content handler, all content events reported by the SAX parser will be silently ignored.

        Applications may register a new or different handler in the middle of a parse, and the SAX parser must begin using the new handler immediately.

        Specified by:
        setContentHandler in interface XMLReader
        Parameters:
        contentHandler - The content handler.
        See Also:
        getContentHandler()

      • setFeature

        public void setFeature​(String featureId,
                       boolean state)
                throws SAXNotRecognizedException,
                       SAXNotSupportedException
        Set the state of any feature in a SAX2 parser. The parser might not recognize the feature, and if it does recognize it, it might not be able to fulfill the request.
        Specified by:
        setFeature in interface XMLReader
        Parameters:
        featureId - The unique identifier (URI) of the feature.
        state - The requested state of the feature (true or false).
        Throws:
        SAXNotRecognizedException - If the requested feature is not known.
        SAXNotSupportedException - If the requested feature is known, but the requested state is not supported.

      • setProperty

        public void setProperty​(String propertyId,
                        Object value)
                 throws SAXNotRecognizedException,
                        SAXNotSupportedException
        Set the value of any property in a SAX2 parser. The parser might not recognize the property, and if it does recognize it, it might not support the requested value.
        Specified by:
        setProperty in interface XMLReader
        Parameters:
        propertyId - The unique identifier (URI) of the property being set.
        value - The value to which the property is being set.
        Throws:
        SAXNotRecognizedException - If the requested property is not known.
        SAXNotSupportedException - If the requested property is known, but the requested value is not supported.

      • startNamespaceMapping

        protected final void startNamespaceMapping()
                                    throws SAXException
        Send startPrefixMapping events
        Throws:
        SAXException - on error

      • endNamespaceMapping

        protected final void endNamespaceMapping()
                                  throws SAXException
        Send endPrefixMapping events
        Throws:
        SAXException - on error