Class DigesterLoader


  • public final class DigesterLoader
    extends java.lang.Object
    This class manages the creation of Digester instances from digester rules modules.
    • Field Detail

      • HEADING

        private static final java.lang.String HEADING
        The default head when reporting an errors list.
        See Also:
        Constant Field Values
      • entityValidator

        private final java.util.Map<java.lang.String,​java.net.URL> entityValidator
        The URLs of entityValidator that have been registered, keyed by the public identifier that corresponds.
      • factory

        private final javax.xml.parsers.SAXParserFactory factory
        The SAXParserFactory to create new default Digester instances.
      • rulesModules

        private final java.lang.Iterable<RulesModule> rulesModules
      • classLoader

        private BinderClassLoader 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.
      • substitutor

        private Substitutor substitutor
        An optional class that substitutes values in attributes and body text. This may be null and so a null check is always required before use.
      • entityResolver

        private org.xml.sax.EntityResolver entityResolver
        The EntityResolver used by the SAX parser. By default it use this class
      • stackAction

        private StackAction stackAction
        Object which will receive callbacks for every pop/push action on the default stack or named stacks.
      • executorService

        private java.util.concurrent.ExecutorService executorService
        The executor service to run asynchronous parse method.
        Since:
        3.1
      • errorHandler

        private org.xml.sax.ErrorHandler errorHandler
        The application-supplied error handler that is notified when parsing warnings, errors, or fatal errors occur.
        Since:
        3.2
      • locator

        private org.xml.sax.Locator locator
        The Locator associated with our parser.
        Since:
        3.2
    • Constructor Detail

      • DigesterLoader

        private DigesterLoader​(java.lang.Iterable<RulesModule> rulesModules)
        Creates a new DigesterLoader instance given a collection of RulesModule instance.
        Parameters:
        rulesModules - The modules containing the Rule binding
    • Method Detail

      • setUseContextClassLoader

        public DigesterLoader setUseContextClassLoader​(boolean useContextClassLoader)
        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:
        useContextClassLoader - determines whether to use Context ClassLoader.
        Returns:
        This loader instance, useful to chain methods.
      • setClassLoader

        public DigesterLoader setClassLoader​(java.lang.ClassLoader classLoader)
        Set the class loader to be used for instantiating application objects when required.
        Parameters:
        classLoader - the class loader to be used for instantiating application objects when required.
        Returns:
        This loader instance, useful to chain methods.
      • setSubstitutor

        public DigesterLoader setSubstitutor​(Substitutor substitutor)
        Sets the Substitutor to be used to convert attributes and body text.
        Parameters:
        substitutor - the Substitutor to be used to convert attributes and body text or null if not substitution of these values is to be performed.
        Returns:
        This loader instance, useful to chain methods.
      • setNamespaceAware

        public DigesterLoader setNamespaceAware​(boolean namespaceAware)
        Set the "namespace aware" flag for parsers we create.
        Parameters:
        namespaceAware - The new "namespace aware" flag
        Returns:
        This loader instance, useful to chain methods.
      • isNamespaceAware

        public boolean isNamespaceAware()
        Return the "namespace aware" flag for parsers we create.
        Returns:
        true, if the "namespace aware" flag for parsers we create, false otherwise.
      • setXIncludeAware

        public DigesterLoader setXIncludeAware​(boolean xIncludeAware)
        Set the XInclude-aware flag for parsers we create. This additionally requires namespace-awareness.
        Parameters:
        xIncludeAware - The new XInclude-aware flag
        Returns:
        This loader instance, useful to chain methods.
        See Also:
        setNamespaceAware(boolean)
      • isXIncludeAware

        public boolean isXIncludeAware()
        Return the XInclude-aware flag for parsers we create;
        Returns:
        true, if the XInclude-aware flag for parsers we create is set, false otherwise
      • setValidating

        public DigesterLoader setValidating​(boolean validating)
        Set the validating parser flag.
        Parameters:
        validating - The new validating parser flag.
        Returns:
        This loader instance, useful to chain methods.
      • isValidating

        public boolean isValidating()
        Return the validating parser flag.
        Returns:
        true, if the validating parser flag is set, false otherwise
      • setSchema

        public DigesterLoader setSchema​(javax.xml.validation.Schema schema)
        Set the XML Schema to be used when parsing.
        Parameters:
        schema - The Schema instance to use.
        Returns:
        This loader instance, useful to chain methods.
      • register

        public DigesterLoader register​(java.lang.String publicId,
                                       java.net.URL 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(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
        Returns:
        This loader instance, useful to chain methods.
      • register

        public DigesterLoader register​(java.lang.String publicId,
                                       java.lang.String entityURL)

        Convenience method that registers the string version of an entity URL instead of a URL version.

        Parameters:
        publicId - Public identifier of the entity to be resolved
        entityURL - The URL to use for reading this entity
        Returns:
        This loader instance, useful to chain methods.
      • getRegistrations

        public java.util.Map<java.lang.String,​java.net.URL> getRegistrations()
        Return the set of DTD URL registrations, keyed by public identifier.
        Returns:
        the set of DTD URL registrations.
      • setEntityResolver

        public DigesterLoader setEntityResolver​(org.xml.sax.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.
        Returns:
        This loader instance, useful to chain methods.
      • setStackAction

        public DigesterLoader setStackAction​(StackAction stackAction)
        Sets the Object which will receive callbacks for every pop/push action on the default stack or named stacks.
        Parameters:
        stackAction - the Object which will receive callbacks for every pop/push action on the default stack or named stacks.
        Returns:
        This loader instance, useful to chain methods.
      • getExecutorService

        public java.util.concurrent.ExecutorService getExecutorService()
        Returns the executor service used to run asynchronous parse method.
        Returns:
        the executor service used to run asynchronous parse method
        Since:
        3.1
      • setExecutorService

        public DigesterLoader setExecutorService​(java.util.concurrent.ExecutorService executorService)
        Sets the executor service to run asynchronous parse method.
        Parameters:
        executorService - the executor service to run asynchronous parse method
        Returns:
        This loader instance, useful to chain methods.
        Since:
        3.1
      • getErrorHandler

        public org.xml.sax.ErrorHandler getErrorHandler()
        Return the error handler for this Digester.
        Returns:
        the error handler for this Digester.
        Since:
        3.2
      • setErrorHandler

        public DigesterLoader setErrorHandler​(org.xml.sax.ErrorHandler errorHandler)
        Set the error handler for this Digester.
        Parameters:
        errorHandler - The new error handler
        Returns:
        This loader instance, useful to chain methods.
        Since:
        3.2
      • getDocumentLocator

        public org.xml.sax.Locator getDocumentLocator()
        Gets the document locator associated with our parser.
        Returns:
        the Locator supplied by the document parser
        Since:
        3.2
      • setDocumentLocator

        public DigesterLoader setDocumentLocator​(org.xml.sax.Locator locator)
        Sets the document locator associated with our parser.
        Parameters:
        locator - the document locator associated with our parser.
        Returns:
        This loader instance, useful to chain methods.
        Since:
        3.2
      • newDigester

        public Digester newDigester()
        Creates a new Digester instance that relies on the default Rules implementation.
        Returns:
        a new Digester instance
      • newDigester

        public Digester newDigester​(Rules rules)
        Creates a new Digester instance that relies on the custom user define Rules implementation
        Parameters:
        rules - The custom user define Rules implementation
        Returns:
        a new Digester instance
      • newDigester

        public Digester newDigester​(javax.xml.parsers.SAXParser parser)
        Creates a new Digester instance that relies on the given SAXParser and the default Rules implementation.
        Parameters:
        parser - the user defined SAXParser
        Returns:
        a new Digester instance
      • newDigester

        public Digester newDigester​(javax.xml.parsers.SAXParser parser,
                                    Rules rules)
        Creates a new Digester instance that relies on the given SAXParser and custom user define Rules implementation.
        Parameters:
        parser - The user defined SAXParser
        rules - The custom user define Rules implementation
        Returns:
        a new Digester instance
      • newDigester

        public Digester newDigester​(org.xml.sax.XMLReader reader)
        Creates a new XMLReader instance that relies on the given XMLReader and the default Rules implementation.
        Parameters:
        reader - The user defined XMLReader
        Returns:
        a new Digester instance
      • newDigester

        public Digester newDigester​(org.xml.sax.XMLReader reader,
                                    Rules rules)
        Creates a new XMLReader instance that relies on the given XMLReader and custom user define Rules implementation.
        Parameters:
        reader - The user defined XMLReader
        rules - The custom user define Rules implementation
        Returns:
        a new Digester instance
      • addRules

        public void addRules​(Digester digester)
        Add rules to an already created Digester instance, analyzing the digester annotations in the target class.
        Parameters:
        digester - the Digester instance reference.
      • createRuleSet

        public RuleSet createRuleSet()
        Creates a new RuleSet instance based on the current configuration.
        Returns:
        A new RuleSet instance based on the current configuration.