edu.pdx.cs399J.grader
Class XmlDumper

java.lang.Object
  edu.pdx.cs399J.grader.XmlDumper

All Implemented Interfaces:

EntityResolver, ErrorHandler

public class XmlDumper
extends Object

This class dumps the contents of a GradeBook to an XML file. By default, the students in the grade book are dumped to XML files in the same directory as the grade book's XML file.

Since:

Fall 2000

Author:

David Whitlock

Field Summary

protected static String	publicID The Public ID for the Grade Bookd DTD
protected static String	systemID The System ID for the Grade Book DTD

Constructor Summary

XmlDumper(File xmlFile)
Creates a new XmlDumper that dumps the contents of a grade book to a given file.

XmlDumper(String xmlFileName)
Creates a new XmlDumper that dumps the contents of a grade book to a file of the given name.

Method Summary

void	dump(GradeBook book) Dumps the contents of a GradeBook in XML format.
void	error(SAXParseException ex)
protected static List<String>	extractNotesFrom(Element element) Extracts a bunch of notes from an Element
protected static String	extractTextFrom(Element element) Extracts the text from an Element.
void	fatalError(SAXParseException ex)
InputSource	resolveEntity(String publicId, String systemId) Attempt to resolve the external entity (such as a DTD) described by the given public and system ID.
void	setStudentDir(File dir) Sets the directory in which the XML files for students are generated.
void	warning(SAXParseException ex)

Methods inherited from class java.lang.Object

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

Field Detail

systemID

protected static final String systemID

The System ID for the Grade Book DTD

See Also:

Constant Field Values

publicID

protected static final String publicID

The Public ID for the Grade Bookd DTD

See Also:

Constant Field Values

Constructor Detail

XmlDumper

public XmlDumper(File xmlFile)
          throws IOException

Creates a new XmlDumper that dumps the contents of a grade book to a given file.

Throws:

IOException

XmlDumper

public XmlDumper(String xmlFileName)
          throws IOException

Creates a new XmlDumper that dumps the contents of a grade book to a file of the given name.

Throws:

IOException

Method Detail

setStudentDir

public void setStudentDir(File dir)

Sets the directory in which the XML files for students are generated.

dump

public void dump(GradeBook book)
          throws IOException

Dumps the contents of a GradeBook in XML format.

Throws:

IOException

resolveEntity

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

Attempt to resolve the external entity (such as a DTD) described by the given public and system ID. The external entity is returned as a InputSource

Specified by:

resolveEntity in interface EntityResolver

Throws:

SAXException

IOException

warning

public void warning(SAXParseException ex)
             throws SAXException

Specified by:

warning in interface ErrorHandler

Throws:

SAXException

error

public void error(SAXParseException ex)
           throws SAXException

Specified by:

error in interface ErrorHandler

Throws:

SAXException

fatalError

public void fatalError(SAXParseException ex)
                throws SAXException

Specified by:

fatalError in interface ErrorHandler

Throws:

SAXException

extractNotesFrom

protected static List<String> extractNotesFrom(Element element)

Extracts a bunch of notes from an Element

extractTextFrom

protected static String extractTextFrom(Element element)

Extracts the text from an Element.