Package org.apache.tomcat.util.digester

Class Digester

java.lang.Object
org.xml.sax.helpers.DefaultHandler
org.xml.sax.ext.DefaultHandler2
org.apache.tomcat.util.digester.Digester
All Implemented Interfaces:
ContentHandler, DTDHandler, EntityResolver, ErrorHandler, DeclHandler, EntityResolver2, LexicalHandler
public class Digester extends DefaultHandler2

A Digester processes an XML input stream by matching a series of element nesting patterns to execute Rules that have been added prior to the start of parsing. This package was inspired by the XmlMapper class that was part of Tomcat 3.0 and 3.1, but is organized somewhat differently.

See the Digester Developer Guide for more information.

IMPLEMENTATION NOTE - A single Digester instance may only be used within the context of a single thread at a time, and a call to parse() must be completed before another can be initiated even from the same thread.

IMPLEMENTATION NOTE - A bug in Xerces 2.0.2 prevents the support of XML schema. You need Xerces 2.1/2.3 and up to make this class working with XML schema

  • Field Details

    • propertySources

      protected static IntrospectionUtils.PropertySource[] propertySources

    • sm

      protected static final StringManager sm

    • source

      protected IntrospectionUtils.PropertySource[] source

    • bodyText

      protected StringBuilder bodyText
      The body text of the current element.

    • bodyTexts

      protected ArrayStack<StringBuilder> bodyTexts
      The stack of body text string buffers for surrounding elements.

    • matches

      protected ArrayStack<List<Rule>> matches
      Stack whose elements are List objects, each containing a list of Rule objects as returned from Rules.getMatch(). As each xml element in the input is entered, the matching rules are pushed onto this stack. After the end tag is reached, the matches are popped again. The depth of is stack is therefore exactly the same as the current "nesting" level of the input xml.
      Since:
      1.6

    • classLoader

      protected ClassLoader classLoader
      The class loader to use for instantiating application objects. If not specified, the context class loader, or the class loader used to load Digester itself, is used, based on the value of the useContextClassLoader variable.

    • configured

      protected boolean configured
      Has this Digester been configured yet.

    • entityResolver

      protected EntityResolver entityResolver
      The EntityResolver used by the SAX parser. By default it use this class

    • entityValidator

      protected HashMap<String,String> entityValidator
      The URLs of entityValidator that have been registered, keyed by the public identifier that corresponds.

    • errorHandler

      protected ErrorHandler errorHandler
      The application-supplied error handler that is notified when parsing warnings, errors, or fatal errors occur.

    • factory

      protected SAXParserFactory factory
      The SAXParserFactory that is created the first time we need it.

    • locator

      protected Locator locator
      The Locator associated with our parser.

    • match

      protected String match
      The current match pattern for nested element processing.

    • namespaceAware

      protected boolean namespaceAware
      Do we want a "namespace aware" parser.

    • namespaces

      protected HashMap<String,ArrayStack<String>> namespaces
      Registered namespaces we are currently processing. The key is the namespace prefix that was declared in the document. The value is an ArrayStack of the namespace URIs this prefix has been mapped to -- the top Stack element is the most current one. (This architecture is required because documents can declare nested uses of the same prefix for different Namespace URIs).

    • params

      protected ArrayStack<Object> params
      The parameters stack being utilized by CallMethodRule and CallParamRule rules.

    • parser

      protected SAXParser parser
      The SAXParser we will use to parse the input stream.

    • publicId

      protected String publicId
      The public identifier of the DTD we are currently parsing under (if any).

    • reader

      protected XMLReader reader
      The XMLReader used to parse digester rules.

    • root

      protected Object root
      The "root" element of the stack (in other words, the last object that was popped.

    • rules

      protected Rules rules
      The Rules implementation containing our collection of Rule instances and associated matching policy. If not established before the first rule is added, a default implementation will be provided.

    • stack

      protected ArrayStack<Object> stack
      The object stack being constructed.

    • useContextClassLoader

      protected boolean useContextClassLoader
      Do we want to use the Context ClassLoader when loading classes for instantiating new objects. Default is false.

    • validating

      protected boolean validating
      Do we want to use a validating parser.

    • rulesValidation

      protected boolean rulesValidation
      Warn on missing attributes and elements.

    • fakeAttributes

      protected Map<Class<?>,List<String>> fakeAttributes
      Fake attributes map (attributes are often used for object creation).

    • log

      protected Log log
      The Log to which most logging calls will be made.

    • saxLog

      protected Log saxLog
      The Log to which all SAX event related logging calls will be made.

  • Constructor Details

    • Digester

      public Digester()

  • Method Details

    • setPropertySource

      public static void setPropertySource(IntrospectionUtils.PropertySource propertySource)

    • setPropertySource

      public static void setPropertySource(IntrospectionUtils.PropertySource[] propertySources)

    • replaceSystemProperties

      public static void replaceSystemProperties()

    • findNamespaceURI

      public String findNamespaceURI(String prefix)
      Return the currently mapped namespace URI for the specified prefix, if any; otherwise return null. These mappings come and go dynamically as the document is parsed.
      Parameters:
      prefix - Prefix to look up
      Returns:
      the namespace URI

    • getClassLoader

      public ClassLoader getClassLoader()
      Return the class loader to be used for instantiating application objects when required. This is determined based upon the following rules:
      • The class loader set by setClassLoader(), if any
      • The thread context class loader, if it exists and the useContextClassLoader property is set to true
      • The class loader used to load the Digester class itself.
      Returns:
      the classloader

    • setClassLoader

      public void setClassLoader(ClassLoader classLoader)
      Set the class loader to be used for instantiating application objects when required.
      Parameters:
      classLoader - The new class loader to use, or null to revert to the standard rules

    • getCount

      public int getCount()
      Returns:
      the current depth of the element stack.

    • getCurrentElementName

      public String getCurrentElementName()
      Returns:
      the name of the XML element that is currently being processed.

    • getErrorHandler

      public ErrorHandler getErrorHandler()
      Returns:
      the error handler for this Digester.

    • setErrorHandler

      public void setErrorHandler(ErrorHandler errorHandler)
      Set the error handler for this Digester.
      Parameters:
      errorHandler - The new error handler

    • getFactory

      public SAXParserFactory getFactory() throws SAXNotRecognizedException, SAXNotSupportedException, ParserConfigurationException
      SAX parser factory method.
      Returns:
      the SAXParserFactory we will use, creating one if necessary.
      Throws:
      ParserConfigurationException - Error creating parser
      SAXNotSupportedException - Error creating parser
      SAXNotRecognizedException - Error creating parser

    • setFeature

      public void setFeature(String feature, boolean value) throws ParserConfigurationException, SAXNotRecognizedException, SAXNotSupportedException
      Sets a flag indicating whether the requested feature is supported by the underlying implementation of org.xml.sax.XMLReader. See http://www.saxproject.org/apidoc/xml/sax/package-summary.html#package-description for information about the standard SAX2 feature flags. In order to be effective, this method must be called before the getParser() method is called for the first time, either directly or indirectly.
      Parameters:
      feature - Name of the feature to set the status for
      value - The new value for this feature
      Throws:
      ParserConfigurationException - if a parser configuration error occurs
      SAXNotRecognizedException - if the property name is not recognized
      SAXNotSupportedException - if the property name is recognized but not supported

    • getLogger

      public Log getLogger()
      Returns:
      the current Logger associated with this instance of the Digester

    • setLogger

      public void setLogger(Log log)
      Set the current logger for this Digester.
      Parameters:
      log - The logger that will be used

    • getSAXLogger

      public Log getSAXLogger()
      Gets the logger used for logging SAX-related information. Note the output is finely grained.
      Returns:
      the SAX logger
      Since:
      1.6

    • setSAXLogger

      public void setSAXLogger(Log saxLog)
      Sets the logger used for logging SAX-related information. Note the output is finely grained.
      Parameters:
      saxLog - Log, not null
      Since:
      1.6

    • getMatch

      public String getMatch()
      Returns:
      the current rule match path

    • getNamespaceAware

      public boolean getNamespaceAware()
      Returns:
      the "namespace aware" flag for parsers we create.

    • setNamespaceAware

      public void setNamespaceAware(boolean namespaceAware)
      Set the "namespace aware" flag for parsers we create.
      Parameters:
      namespaceAware - The new "namespace aware" flag

    • setPublicId

      public void setPublicId(String publicId)
      Set the public id of the current file being parse.
      Parameters:
      publicId - the DTD/Schema public's id.

    • getPublicId

      public String getPublicId()
      Returns:
      the public identifier of the DTD we are currently parsing under, if any.

    • getRuleNamespaceURI

      @Deprecated public String getRuleNamespaceURI()
      Deprecated.
      Unused. Will be removed in Tomcat 9
      Returns:
      the namespace URI that will be applied to all subsequently added Rule objects.

    • setRuleNamespaceURI

      @Deprecated public void setRuleNamespaceURI(String ruleNamespaceURI)
      Deprecated.
      Unused. Will be removed in Tomcat 9
      Set the namespace URI that will be applied to all subsequently added Rule objects.
      Parameters:
      ruleNamespaceURI - Namespace URI that must match on all subsequently added rules, or null for matching regardless of the current namespace URI

    • getParser

      public SAXParser getParser()
      Returns:
      the SAXParser we will use to parse the input stream. If there is a problem creating the parser, return null.

    • getProperty

      public Object getProperty(String property) throws SAXNotRecognizedException, SAXNotSupportedException
      Return the current value of the specified property for the underlying XMLReader implementation. See http://www.saxproject.org/apidoc/xml/sax/package-summary.html#package-description for information about the standard SAX2 properties.
      Parameters:
      property - Property name to be retrieved
      Returns:
      the property value
      Throws:
      SAXNotRecognizedException - if the property name is not recognized
      SAXNotSupportedException - if the property name is recognized but not supported

    • getRules

      public Rules getRules()
      Return the Rules implementation object containing our rules collection and associated matching policy. If none has been established, a default implementation will be created and returned.
      Returns:
      the rules

    • setRules

      public void setRules(Rules rules)
      Set the Rules implementation object containing our rules collection and associated matching policy.
      Parameters:
      rules - New Rules implementation

    • getUseContextClassLoader

      public boolean getUseContextClassLoader()
      Returns:
      the boolean as to whether the context classloader should be used.

    • setUseContextClassLoader

      public void setUseContextClassLoader(boolean use)
      Determine whether to use the Context ClassLoader (the one found by calling Thread.currentThread().getContextClassLoader()) to resolve/load classes that are defined in various rules. If not using Context ClassLoader, then the class-loading defaults to using the calling-class' ClassLoader.
      Parameters:
      use - determines whether to use Context ClassLoader.

    • getValidating

      public boolean getValidating()
      Returns:
      the validating parser flag.

    • setValidating

      public void setValidating(boolean validating)
      Set the validating parser flag. This must be called before parse() is called the first time.
      Parameters:
      validating - The new validating parser flag.

    • getRulesValidation

      public boolean getRulesValidation()
      Returns:
      the rules validation flag.

    • setRulesValidation

      public void setRulesValidation(boolean rulesValidation)
      Set the rules validation flag. This must be called before parse() is called the first time.
      Parameters:
      rulesValidation - The new rules validation flag.

    • getFakeAttributes

      public Map<Class<?>,List<String>> getFakeAttributes()
      Returns:
      the fake attributes list.

    • isFakeAttribute

      public boolean isFakeAttribute(Object object, String name)
      Determine if an attribute is a fake attribute.
      Parameters:
      object - The object
      name - The attribute name
      Returns:
      true if this is a fake attribute

    • setFakeAttributes

      public void setFakeAttributes(Map<Class<?>,List<String>> fakeAttributes)
      Set the fake attributes.
      Parameters:
      fakeAttributes - The new fake attributes.

    • getXMLReader

      public XMLReader getXMLReader() throws SAXException
      Return the XMLReader to be used for parsing the input document. FIX ME: there is a bug in JAXP/XERCES that prevent the use of a parser that contains a schema with a DTD.
      Returns:
      the XML reader
      Throws:
      SAXException - if no XMLReader can be instantiated

    • characters

      public void characters(char[] buffer, int start, int length) throws SAXException
      Process notification of character data received from the body of an XML element.
      Specified by:
      characters in interface ContentHandler
      Overrides:
      characters in class DefaultHandler
      Parameters:
      buffer - The characters from the XML document
      start - Starting offset into the buffer
      length - Number of characters from the buffer
      Throws:
      SAXException - if a parsing error is to be reported

    • endDocument

      public void endDocument() throws SAXException
      Process notification of the end of the document being reached.
      Specified by:
      endDocument in interface ContentHandler
      Overrides:
      endDocument in class DefaultHandler
      Throws:
      SAXException - if a parsing error is to be reported

    • endElement

      public void endElement(String namespaceURI, String localName, String qName) throws SAXException
      Process notification of the end of an XML element being reached.
      Specified by:
      endElement in interface ContentHandler
      Overrides:
      endElement in class DefaultHandler
      Parameters:
      namespaceURI - - The Namespace URI, or the empty string if the element has no Namespace URI or if Namespace processing is not being performed.
      localName - - The local name (without prefix), or the empty string if Namespace processing is not being performed.
      qName - - The qualified XML 1.0 name (with prefix), or the empty string if qualified names are not available.
      Throws:
      SAXException - if a parsing error is to be reported

    • endPrefixMapping

      public void endPrefixMapping(String prefix) throws SAXException
      Process notification that a namespace prefix is going out of scope.
      Specified by:
      endPrefixMapping in interface ContentHandler
      Overrides:
      endPrefixMapping in class DefaultHandler
      Parameters:
      prefix - Prefix that is going out of scope
      Throws:
      SAXException - if a parsing error is to be reported

    • ignorableWhitespace

      public void ignorableWhitespace(char[] buffer, int start, int len) throws SAXException
      Process notification of ignorable whitespace received from the body of an XML element.
      Specified by:
      ignorableWhitespace in interface ContentHandler
      Overrides:
      ignorableWhitespace in class DefaultHandler
      Parameters:
      buffer - The characters from the XML document
      start - Starting offset into the buffer
      len - Number of characters from the buffer
      Throws:
      SAXException - if a parsing error is to be reported

    • processingInstruction

      public void processingInstruction(String target, String data) throws SAXException
      Process notification of a processing instruction that was encountered.
      Specified by:
      processingInstruction in interface ContentHandler
      Overrides:
      processingInstruction in class DefaultHandler
      Parameters:
      target - The processing instruction target
      data - The processing instruction data (if any)
      Throws:
      SAXException - if a parsing error is to be reported

    • getDocumentLocator

      public Locator getDocumentLocator()
      Gets the document locator associated with our parser.
      Returns:
      the Locator supplied by the document parser

    • setDocumentLocator

      public void setDocumentLocator(Locator locator)
      Sets the document locator associated with our parser.
      Specified by:
      setDocumentLocator in interface ContentHandler
      Overrides:
      setDocumentLocator in class DefaultHandler
      Parameters:
      locator - The new locator

    • skippedEntity

      public void skippedEntity(String name) throws SAXException
      Process notification of a skipped entity.
      Specified by:
      skippedEntity in interface ContentHandler
      Overrides:
      skippedEntity in class DefaultHandler
      Parameters:
      name - Name of the skipped entity
      Throws:
      SAXException - if a parsing error is to be reported

    • startDocument

      public void startDocument() throws SAXException
      Process notification of the beginning of the document being reached.
      Specified by:
      startDocument in interface ContentHandler
      Overrides:
      startDocument in class DefaultHandler
      Throws:
      SAXException - if a parsing error is to be reported

    • startElement

      public void startElement(String namespaceURI, String localName, String qName, Attributes list) throws SAXException
      Process notification of the start of an XML element being reached.
      Specified by:
      startElement in interface ContentHandler
      Overrides:
      startElement in class DefaultHandler
      Parameters:
      namespaceURI - The Namespace URI, or the empty string if the element has no Namespace URI or if Namespace processing is not being performed.
      localName - The local name (without prefix), or the empty string if Namespace processing is not being performed.
      qName - The qualified name (with prefix), or the empty string if qualified names are not available.\
      list - The attributes attached to the element. If there are no attributes, it shall be an empty Attributes object.
      Throws:
      SAXException - if a parsing error is to be reported

    • startPrefixMapping

      public void startPrefixMapping(String prefix, String namespaceURI) throws SAXException
      Process notification that a namespace prefix is coming in to scope.
      Specified by:
      startPrefixMapping in interface ContentHandler
      Overrides:
      startPrefixMapping in class DefaultHandler
      Parameters:
      prefix - Prefix that is being declared
      namespaceURI - Corresponding namespace URI being mapped to
      Throws:
      SAXException - if a parsing error is to be reported

    • notationDecl

      public void notationDecl(String name, String publicId, String systemId)
      Receive notification of a notation declaration event.
      Specified by:
      notationDecl in interface DTDHandler
      Overrides:
      notationDecl in class DefaultHandler
      Parameters:
      name - The notation name
      publicId - The public identifier (if any)
      systemId - The system identifier (if any)

    • unparsedEntityDecl

      public void unparsedEntityDecl(String name, String publicId, String systemId, String notation)
      Receive notification of an unparsed entity declaration event.
      Specified by:
      unparsedEntityDecl in interface DTDHandler
      Overrides:
      unparsedEntityDecl in class DefaultHandler
      Parameters:
      name - The unparsed entity name
      publicId - The public identifier (if any)
      systemId - The system identifier (if any)
      notation - The name of the associated notation

    • setEntityResolver

      public void setEntityResolver(EntityResolver entityResolver)
      Set the EntityResolver used by SAX when resolving public id and system id. This must be called before the first call to parse().
      Parameters:
      entityResolver - a class that implement the EntityResolver interface.

    • getEntityResolver

      public EntityResolver getEntityResolver()
      Return the Entity Resolver used by the SAX parser.
      Returns:
      Return the Entity Resolver used by the SAX parser.

    • resolveEntity

      public InputSource resolveEntity(String name, String publicId, String baseURI, String systemId) throws SAXException, IOException
      Specified by:
      resolveEntity in interface EntityResolver2
      Overrides:
      resolveEntity in class DefaultHandler2
      Throws:
      SAXException
      IOException

    • startDTD

      public void startDTD(String name, String publicId, String systemId) throws SAXException
      Specified by:
      startDTD in interface LexicalHandler
      Overrides:
      startDTD in class DefaultHandler2
      Throws:
      SAXException

    • error

      public void error(SAXParseException exception) throws SAXException
      Forward notification of a parsing error to the application supplied error handler (if any).
      Specified by:
      error in interface ErrorHandler
      Overrides:
      error in class DefaultHandler
      Parameters:
      exception - The error information
      Throws:
      SAXException - if a parsing exception occurs

    • fatalError

      public void fatalError(SAXParseException exception) throws SAXException
      Forward notification of a fatal parsing error to the application supplied error handler (if any).
      Specified by:
      fatalError in interface ErrorHandler
      Overrides:
      fatalError in class DefaultHandler
      Parameters:
      exception - The fatal error information
      Throws:
      SAXException - if a parsing exception occurs

    • warning

      public void warning(SAXParseException exception) throws SAXException
      Forward notification of a parse warning to the application supplied error handler (if any).
      Specified by:
      warning in interface ErrorHandler
      Overrides:
      warning in class DefaultHandler
      Parameters:
      exception - The warning information
      Throws:
      SAXException - if a parsing exception occurs

    • parse

      public Object parse(File file) throws IOException, SAXException
      Parse the content of the specified file using this Digester. Returns the root element from the object stack (if any).
      Parameters:
      file - File containing the XML data to be parsed
      Returns:
      the root object
      Throws:
      IOException - if an input/output error occurs
      SAXException - if a parsing exception occurs

    • parse

      public Object parse(InputSource input) throws IOException, SAXException
      Parse the content of the specified input source using this Digester. Returns the root element from the object stack (if any).
      Parameters:
      input - Input source containing the XML data to be parsed
      Returns:
      the root object
      Throws:
      IOException - if an input/output error occurs
      SAXException - if a parsing exception occurs

    • parse

      public Object parse(InputStream input) throws IOException, SAXException
      Parse the content of the specified input stream using this Digester. Returns the root element from the object stack (if any).
      Parameters:
      input - Input stream containing the XML data to be parsed
      Returns:
      the root object
      Throws:
      IOException - if an input/output error occurs
      SAXException - if a parsing exception occurs

    • register

      public void register(String publicId, String entityURL)

      Register the specified DTD URL for the specified public identifier. This must be called before the first call to parse().

      Digester contains an internal EntityResolver implementation. This maps PUBLICID's to URLs (from which the resource will be loaded). A common use case for this method is to register local URLs (possibly computed at runtime by a classloader) for DTDs. This allows the performance advantage of using a local version without having to ensure every SYSTEM URI on every processed xml document is local. This implementation provides only basic functionality. If more sophisticated features are required, using setEntityResolver(org.xml.sax.EntityResolver) to set a custom resolver is recommended.

      Note: This method will have no effect when a custom EntityResolver has been set. (Setting a custom EntityResolver overrides the internal implementation.)

      Parameters:
      publicId - Public identifier of the DTD to be resolved
      entityURL - The URL to use for reading this DTD

    • addRule

      public void addRule(String pattern, Rule rule)

      Register a new Rule matching the specified pattern. This method sets the Digester property on the rule.

      Parameters:
      pattern - Element matching pattern
      rule - Rule to be registered

    • addRuleSet

      public void addRuleSet(RuleSet ruleSet)
      Register a set of Rule instances defined in a RuleSet.
      Parameters:
      ruleSet - The RuleSet instance to configure from

    • addCallMethod

      public void addCallMethod(String pattern, String methodName)
      Add an "call method" rule for a method which accepts no arguments.
      Parameters:
      pattern - Element matching pattern
      methodName - Method name to be called
      See Also:

    • addCallMethod

      public void addCallMethod(String pattern, String methodName, int paramCount)
      Add an "call method" rule for the specified parameters.
      Parameters:
      pattern - Element matching pattern
      methodName - Method name to be called
      paramCount - Number of expected parameters (or zero for a single parameter from the body of this element)
      See Also:

    • addCallParam

      public void addCallParam(String pattern, int paramIndex)
      Add a "call parameter" rule for the specified parameters.
      Parameters:
      pattern - Element matching pattern
      paramIndex - Zero-relative parameter index to set (from the body of this element)
      See Also:

    • addFactoryCreate

      public void addFactoryCreate(String pattern, ObjectCreationFactory creationFactory, boolean ignoreCreateExceptions)
      Add a "factory create" rule for the specified parameters.
      Parameters:
      pattern - Element matching pattern
      creationFactory - Previously instantiated ObjectCreationFactory to be utilized
      ignoreCreateExceptions - when true any exceptions thrown during object creation will be ignored.
      See Also:

    • addObjectCreate

      public void addObjectCreate(String pattern, String className)
      Add an "object create" rule for the specified parameters.
      Parameters:
      pattern - Element matching pattern
      className - Java class name to be created
      See Also:

    • addObjectCreate

      public void addObjectCreate(String pattern, String className, String attributeName)
      Add an "object create" rule for the specified parameters.
      Parameters:
      pattern - Element matching pattern
      className - Default Java class name to be created
      attributeName - Attribute name that optionally overrides the default Java class name to be created
      See Also:

    • addSetNext

      public void addSetNext(String pattern, String methodName, String paramType)
      Add a "set next" rule for the specified parameters.
      Parameters:
      pattern - Element matching pattern
      methodName - Method name to call on the parent element
      paramType - Java class name of the expected parameter type (if you wish to use a primitive type, specify the corresponding Java wrapper class instead, such as java.lang.Boolean for a boolean parameter)
      See Also:

    • addSetProperties

      public void addSetProperties(String pattern)
      Add a "set properties" rule for the specified parameters.
      Parameters:
      pattern - Element matching pattern
      See Also:

    • clear

      public void clear()
      Clear the current contents of the object stack.

      Calling this method might allow another document of the same type to be correctly parsed. However this method was not intended for this purpose. In general, a separate Digester object should be created for each document to be parsed.

    • reset

      public void reset()

    • peek

      public Object peek()
      Return the top object on the stack without removing it. If there are no objects on the stack, return null.
      Returns:
      the top object

    • peek

      public Object peek(int n)
      Return the n'th object down the stack, where 0 is the top element and [getCount()-1] is the bottom element. If the specified index is out of range, return null.
      Parameters:
      n - Index of the desired element, where 0 is the top of the stack, 1 is the next element down, and so on.
      Returns:
      the specified object

    • pop

      public Object pop()
      Pop the top object off of the stack, and return it. If there are no objects on the stack, return null.
      Returns:
      the top object

    • push

      public void push(Object object)
      Push a new object onto the top of the object stack.
      Parameters:
      object - The new object

    • getRoot

      public Object getRoot()
      When the Digester is being used as a SAXContentHandler, this method allows you to access the root object that has been created after parsing.
      Returns:
      the root object that has been created after parsing or null if the digester has not parsed any XML yet.

    • configure

      protected void configure()

      Provide a hook for lazy configuration of this Digester instance. The default implementation does nothing, but subclasses can override as needed.

      Note This method may be called more than once.

    • peekParams

      public Object peekParams()

      Return the top object on the parameters stack without removing it. If there are no objects on the stack, return null.

      The parameters stack is used to store CallMethodRule parameters. See params.

      Returns:
      the top object on the parameters stack

    • popParams

      public Object popParams()

      Pop the top object off of the parameters stack, and return it. If there are no objects on the stack, return null.

      The parameters stack is used to store CallMethodRule parameters. See params.

      Returns:
      the top object on the parameters stack

    • pushParams

      public void pushParams(Object object)

      Push a new object onto the top of the parameters stack.

      The parameters stack is used to store CallMethodRule parameters. See params.

      Parameters:
      object - The new object

    • createSAXException

      public SAXException createSAXException(String message, Exception e)
      Create a SAX exception which also understands about the location in the digester file where the exception occurs
      Parameters:
      message - The error message
      e - The root cause
      Returns:
      the new exception

    • createSAXException

      public SAXException createSAXException(Exception e)
      Create a SAX exception which also understands about the location in the digester file where the exception occurs
      Parameters:
      e - The root cause
      Returns:
      the new exception

    • createSAXException

      public SAXException createSAXException(String message)
      Create a SAX exception which also understands about the location in the digester file where the exception occurs
      Parameters:
      message - The error message
      Returns:
      the new exception