cz.cuni.mff.ksi.jinfer.xsdimportdom
Class DOMParser

java.lang.Object
  cz.cuni.mff.ksi.jinfer.xsdimportdom.DOMParser

All Implemented Interfaces:

NamedModule, XSDParser

public class DOMParser
extends Object
implements XSDParser

Class responsible for creating Initial Grammar rules from XSD Schema. Provides XSD Schema parsing support using Xerces DOM parser from SUN.

Xerces DOM parser is used to build the DOM tree from a stream, this DOM tree is then passed to DOMHandler class to create rule-trees for each of the top level element tags. After the rule-trees are complete, rules from each rule-tree are extracted. The union of these extracted rules are the IG rules. IG rules may contain complex regular expressions (depending on a particular schema) and may need to be expanded using Expander before they can be simplified.

Please read package info.

Constructor Summary

DOMParser()

Method Summary

String	getDisplayName() Returns a user friendly name of the module.
String	getModuleDescription() Returns the information about this module's inner workings.
String	getName() Returns a user friendly yet unique name of the module.
List<Element>	parse(InputStream stream) Parses input Schema and returns the rules extracted from it.

Methods inherited from class java.lang.Object

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

Constructor Detail

DOMParser

public DOMParser()

Method Detail

parse

public List<Element> parse(InputStream stream)
                    throws XSDException,
                           InterruptedException

Description copied from interface: XSDParser

Parses input Schema and returns the rules extracted from it.

Specified by:

parse in interface XSDParser

Parameters:

stream - Stream containing XSDSchema document.

Returns:

Rules contained within. Empty list if there are no rules or an error occurs.

Throws:

XSDException - When parsing error occurs.

InterruptedException - When user cancels the operation.

getName

public String getName()

Description copied from interface: NamedModule

Returns a user friendly yet unique name of the module.

Specified by:

getName in interface NamedModule

Returns:

Unique module name.

getModuleDescription

public String getModuleDescription()

Description copied from interface: NamedModule

Returns the information about this module's inner workings. Most of the time will be equal to a call to NamedModule.getDisplayName(), but if the module for example consists of more sub-modules, their names should be listed here.

Specified by:

getModuleDescription in interface NamedModule

Returns:

String describing inner structure of the module.

getDisplayName

public String getDisplayName()

Description copied from interface: NamedModule

Returns a user friendly name of the module. This name is not neccessary unique.

Specified by:

getDisplayName in interface NamedModule

Returns:

Displayable module name.