LinkRewritingTransformer

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org.apache.lenya.cms.cocoon.transformation
Class LinkRewritingTransformer

java.lang.Object
  AbstractLoggable
      org.apache.cocoon.xml.AbstractXMLProducer
          org.apache.cocoon.xml.AbstractXMLPipe
              org.apache.cocoon.transformation.AbstractTransformer
                  org.apache.cocoon.transformation.AbstractSAXTransformer
                      org.apache.lenya.cms.cocoon.transformation.LinkRewritingTransformer

All Implemented Interfaces:: org.xml.sax.ContentHandler, org.xml.sax.ext.LexicalHandler, org.apache.cocoon.sitemap.SitemapModelComponent, org.apache.cocoon.transformation.Transformer, org.apache.cocoon.xml.XMLConsumer, org.apache.cocoon.xml.XMLPipe, org.apache.cocoon.xml.XMLProducer

public class LinkRewritingTransformer
extends org.apache.cocoon.transformation.AbstractSAXTransformer

Link rewriting transformer.

This transformer is applied to an XHMTL document. It processes <xhtml:a href="..."> attributes of the following form:

{context-prefix}/{publication-id}/{area}{document-url}

These links are rewritten using the following rules:

The area is replaced by the current area (obtained from the page envelope).
A URL prefix is added depending on the proxy configuration of the publication.
If the target document does not exist, the <a/> element is removed to disable the link.

$Id: LinkRewritingTransformer.java,v 1.7 2004/03/16 11:12:16 gregor

Field Summary

private org.apache.lenya.ac.AccreditableManager accreditableManager


private org.apache.lenya.ac.AccessControllerResolver acResolver


static java.lang.String ATTRIBUTE_HREF
          The local name of the HTML <a> href attribute.

private org.apache.lenya.cms.publication.Document currentDocument


private boolean ignoreAElement


private java.lang.String indent


private org.apache.lenya.ac.PolicyManager policyManager


private ServiceSelector serviceSelector


Fields inherited from class org.apache.cocoon.transformation.AbstractSAXTransformer

context, defaultNamespaceURI, emptyAttributes, ignoreEmptyCharacters, ignoreEventsCount, ignoreHooksCount, ignoreWhitespaces, manager, namespaceURI, objectModel, parameters, recorderStack, request, resolver, response, source, stack

Fields inherited from class org.apache.cocoon.xml.AbstractXMLProducer

contentHandler, lexicalHandler, xmlConsumer

Fields inherited from interface org.apache.cocoon.transformation.Transformer

ROLE

Constructor Summary

LinkRewritingTransformer()


Method Summary

void dispose()


void endElement(java.lang.String uri, java.lang.String name, java.lang.String qname)
          (non-Javadoc)

protected org.apache.lenya.cms.publication.Document getCurrentDocument()
          Returns the currently processed document.

protected boolean isIgnoreAElement()


protected boolean lookingAtAElement(java.lang.String name)


protected boolean lookingAtLinkElement(java.lang.String name)
          Check if we are looking at a link element

void recycle()
          (non-Javadoc)

protected void rewriteLink(org.xml.sax.helpers.AttributesImpl newAttrs, org.apache.lenya.cms.publication.Document targetDocument, java.lang.String anchor, java.lang.String queryString)
          Rewrites a link.

protected void setHrefAttribute(org.xml.sax.helpers.AttributesImpl attr, java.lang.String value)
          Sets the value of the href attribute.

protected void setIgnoreAElement(boolean ignoreAElement)


void setup(org.apache.cocoon.environment.SourceResolver resolver, java.util.Map objectModel, java.lang.String source, Parameters parameters)
          Setup the next round.

void startElement(java.lang.String uri, java.lang.String name, java.lang.String qname, org.xml.sax.Attributes attrs)
          (non-Javadoc)

Methods inherited from class org.apache.cocoon.transformation.AbstractSAXTransformer

addRecorder, characters, comment, compose, configure, endCDATA, endDocument, endDTD, endEntity, endParametersRecording, endPrefixMapping, endRecording, endSerializedXMLRecording, endTextRecording, endTransformingElement, ignorableWhitespace, processingInstruction, removeRecorder, sendEndElementEvent, sendEndPrefixMapping, sendEvents, sendParametersEvents, sendStartElementEvent, sendStartElementEvent, sendStartPrefixMapping, sendTextEvent, setDocumentLocator, setupTransforming, skippedEntity, startCDATA, startDocument, startDTD, startEntity, startParametersRecording, startPrefixMapping, startRecording, startSerializedXMLRecording, startTextRecording, startTransformingElement

Methods inherited from class org.apache.cocoon.xml.AbstractXMLProducer

setConsumer, setContentHandler, setLexicalHandler

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cocoon.xml.XMLProducer

setConsumer

Field Detail

ignoreAElement

private boolean ignoreAElement

serviceSelector

private ServiceSelector serviceSelector

policyManager

private org.apache.lenya.ac.PolicyManager policyManager

acResolver

private org.apache.lenya.ac.AccessControllerResolver acResolver

accreditableManager

private org.apache.lenya.ac.AccreditableManager accreditableManager

currentDocument

private org.apache.lenya.cms.publication.Document currentDocument

ATTRIBUTE_HREF

public static final java.lang.String ATTRIBUTE_HREF

The local name of the HTML <a> href attribute.

See Also:: Constant Field Values

indent

private java.lang.String indent

Constructor Detail