org.dlese.dpc.util.uri
Class UriMappings

java.lang.Object
  org.dlese.dpc.util.uri.UriMappings

All Implemented Interfaces:

ContentHandler

public class UriMappings
extends Object
implements ContentHandler

Utility class for mapping "static" URIs (i.e. "catalog_(\S+).htm") to dynamic ones (i.e. "view_resource.do?description=$1") using regexes

Author:

ryandear@ucar.edu

Constructor Summary

UriMappings(ServletContext servletContext, String xmlParserClass)
Constructor for the UrlMappings object

Method Summary

void	characters(char[] ch, int start, int length) (SAX) Element data (characters between tags, not used here)
void	endDocument() (SAX) Invoked at the end of parsing.
void	endElement(String namespaceURI, String localName, String qName) (SAX) Invoked upon closing tag of an XML element (not used here)
void	endPrefixMapping(String prefix) (SAX) Required by SAX, but not used here
String	getForwardPage(HttpServletRequest request) Gets the forwardPage attribute of the UrlMappings object
void	ignorableWhitespace(char[] ch, int start, int length) (SAX) Reports any whitespace that is ignored because it falls outside of the DTD or schema definition--usefull for re-generating the file with indents intact.
void	loadMappings(String configFile) Load URL mappings from the supplied configuration file
void	processingInstruction(String target, String data) (SAX) Required by SAX, but not used here
static void	setDebug(boolean db) Sets the debug attribute of the DDSServlet object
void	setDocumentLocator(Locator locator) (SAX) Sets the SAX locator, which indicates the current position of the parser within the document (line number, column number).
void	skippedEntity(String name) (SAX) Required by SAX, but not used here
void	startDocument() (SAX) Invoked at the start of any document parse
void	startElement(String namespaceURI, String localName, String qName, Attributes atts) (SAX) Invoked upon opening tag of an XML element
void	startPrefixMapping(String prefix, String uri) (SAX) Required by SAX, but not used here

Methods inherited from class java.lang.Object

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

Constructor Detail

UriMappings

public UriMappings(ServletContext servletContext,
                   String xmlParserClass)

Constructor for the UrlMappings object

Parameters:

xmlParserClass -

servletContext -

Method Detail

loadMappings

public void loadMappings(String configFile)

Load URL mappings from the supplied configuration file

Parameters:

configFile -

getForwardPage

public String getForwardPage(HttpServletRequest request)

Gets the forwardPage attribute of the UrlMappings object

Parameters:

request -

Returns:

The forwardPage value

setDocumentLocator

public void setDocumentLocator(Locator locator)

(SAX) Sets the SAX locator, which indicates the current position of the parser within the document (line number, column number). Could be used to indicate the spot where an error occured.

Specified by:

setDocumentLocator in interface ContentHandler

Parameters:

locator - The new saxLocator value

startDocument

public void startDocument()
                   throws SAXException

(SAX) Invoked at the start of any document parse

Specified by:

startDocument in interface ContentHandler

Throws:

SAXException

endDocument

public void endDocument()
                 throws SAXException

(SAX) Invoked at the end of parsing. Rewrite the definitions XML if new Ids have been assigned.

Specified by:

endDocument in interface ContentHandler

Throws:

SAXException

startElement

public void startElement(String namespaceURI,
                         String localName,
                         String qName,
                         Attributes atts)
                  throws SAXException

(SAX) Invoked upon opening tag of an XML element

Specified by:

startElement in interface ContentHandler

Parameters:

namespaceURI -

localName -

qName -

atts -

Throws:

SAXException

endElement

public void endElement(String namespaceURI,
                       String localName,
                       String qName)
                throws SAXException

(SAX) Invoked upon closing tag of an XML element (not used here)

Specified by:

endElement in interface ContentHandler

Parameters:

namespaceURI - XML namespace

localName - local tag name

qName - fully qualified tag name

Throws:

SAXException

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws SAXException

(SAX) Element data (characters between tags, not used here)

Specified by:

characters in interface ContentHandler

Parameters:

ch -

start -

length -

Throws:

SAXException

ignorableWhitespace

public void ignorableWhitespace(char[] ch,
                                int start,
                                int length)
                         throws SAXException

(SAX) Reports any whitespace that is ignored because it falls outside of the DTD or schema definition--usefull for re-generating the file with indents intact.

Specified by:

ignorableWhitespace in interface ContentHandler

Parameters:

ch -

start -

length -

Throws:

SAXException

startPrefixMapping

public void startPrefixMapping(String prefix,
                               String uri)
                        throws SAXException

(SAX) Required by SAX, but not used here

Specified by:

startPrefixMapping in interface ContentHandler

Parameters:

prefix -

uri -

Throws:

SAXException

endPrefixMapping

public void endPrefixMapping(String prefix)
                      throws SAXException

(SAX) Required by SAX, but not used here

Specified by:

endPrefixMapping in interface ContentHandler

Parameters:

prefix -

Throws:

SAXException

processingInstruction

public void processingInstruction(String target,
                                  String data)
                           throws SAXException

(SAX) Required by SAX, but not used here

Specified by:

processingInstruction in interface ContentHandler

Parameters:

target -

data -

Throws:

SAXException

skippedEntity

public void skippedEntity(String name)
                   throws SAXException

(SAX) Required by SAX, but not used here

Specified by:

skippedEntity in interface ContentHandler

Parameters:

name -

Throws:

SAXException

setDebug

public static final void setDebug(boolean db)

Sets the debug attribute of the DDSServlet object

Parameters:

db - The new debug value