Hello,
you can also use the omitns transformer at the end of your pipeline :
add this to the components/transformer section of the sitemap
<map:transformer logger="sitemap.transformer.omitns"
name="omitns" pool-grow="2" pool-max="16" pool-min="2"
src="com.gitus.cocoon.transform.OmitNsTransformer"/>
then in your pipe finish with
<map:transform type="omitns"/>
<map:serialize type="html"/>
I attached the source file of the transformer file containing the source of the transformer, as i
don't think it's part of the distrib.
Just compile the class and put the jar in WEB-INF/lib folder.
Best regards,
Marc
Geert Josten a écrit :
If there is no XSL, then why not add it? It a relatively small
slowdown compared to cinclude..
My pipeline looks the following:
<map:match pattern="...">
...
<map:transform type="cinclude"/>
<map:transform type="xslt" src="stripUnusedNamespaces.xsl" />
<map:serialize type="xhtml"/>
</map:pattern>
Cheers,
G.
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/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
[EMAIL PROTECTED]
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <[EMAIL PROTECTED]>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
* OmitNsTransformer.java
* (C)2004 Gitus, s.r.o., http://www.gitus.com
* Henryk Paluch, [EMAIL PROTECTED]
*/
package com.gitus.cocoon.transform;
import java.io.IOException;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import org.apache.avalon.excalibur.pool.Recyclable;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.environment.SourceResolver;
import org.apache.cocoon.transformation.AbstractTransformer;
import org.xml.sax.helpers.AttributesImpl;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* This transformer is supposed to omit selected or all namespace declaration.
* <h2>Usage</h2>
* Declare this transformer in <code>map:transformers</code> section:
* <pre>
* <map:components>
* ...
* <map:transformes>
* ...
* <map:transformer
* logger="sitemap.transformer.omitns"
* name="omitns"
* pool-grow="2" pool-max="16" pool-min="2"
* src="com.gitus.cocoon.transform.OmitNsTransformer"/>
* </map:transformer>
* ...
* </pre>
*
* Insert <code>omitns</code> transformer with <code>omit-namespaces</code>
* into your pipeline. For example, to omit common logicsheet tags from xsp use
something like:
*
* <pre>
* <map:match pattern="*_xsp">
* <map:generate type="serverpages" src="xsp/{1}.xsp"/>
* <map:transform type="omitns" label="xml">
* <map:parameter name="omit-namespaces" value="xsp jpath xspdoc esql
xsp-request"/>
* </map:transform>
* <map:serialize type="xml"/>
* </map:match>
* </pre>
*
* <p>If you want to omit all ns declaration - then leave
<code>omit-namespaces</code> empty.</p>
* <p>If you want to omit plain <code>xmlns=http://....</code> attribute
(usefull for HTMLSerializer) then specify</p>
* <pre>
* <map:parameter name="omit-plain-xmlns" value="true"/>
* </pre>
* @author <a href="mailto:[EMAIL PROTECTED]">Henryk Paluch</a>
* @version CVS $Id:$ 2004-01-16
*
*
*/
public class OmitNsTransformer extends AbstractTransformer
implements Recyclable
{
/**
* Parameter - specifies whitespace or comma separated list of
namespaces
* to omit (remove) from output.
*/
public static final String OMITNS_OMIT_NAMESPACES="omit-namespaces";
/**
* Parameter - specifies whether to omit main
<code>xmlns=http://...</code>
* declaration.
* Allowed values are "true" or "false". Default is false;
*/
public static final String OMITNS_OMIT_PLAIN_XMLNS="omit-plain-xmlns";
/**
* Set of Strings containing namespace prefixes to omit from output.
*/
protected Set omittedNs = null;
/**
* We need to make runtime set of URIs to omit too...
*/
protected Set omittedUris = null;
/**
* Whether to omit plain <code>xmlns=http://abcde</code>.
* It is usefull when you like to specify <code>xmlns</code> for html
* (it is accurate for XHTML or XML Serialization),
* but it should be filtered out for HTML serialization
*/
protected boolean omitPlainXmlns = false;
/**
* Setup - prepare transformer.
* setup list of omitted namespaces
* @see
org.apache.cocoon.sitemap.SitemapModelComponent#setup(org.apache.cocoon.environment.SourceResolver,
java.util.Map, java.lang.String,
org.apache.avalon.framework.parameters.Parameters)
*/
public void setup(
SourceResolver resolver,
Map objectModel,
String src,
Parameters parameters)
throws ProcessingException, SAXException, IOException {
omitPlainXmlns =
parameters.getParameterAsBoolean(OMITNS_OMIT_PLAIN_XMLNS,false);
omittedNs = new HashSet();
omittedUris = new HashSet();
myAddOmittedNamespaces(parameters);
if ( getLogger().isDebugEnabled()){
getLogger().debug("setup: List of ns prefixes
to omit: "+showSet(omittedNs));
getLogger().debug("setup:
omitPlainXmlns="+omitPlainXmlns);
}
}
/**
* Release Set on recycle event.
*/
public void recycle() {
super.recycle();
omittedNs = null;
omittedUris = null;
}
/**
* Hook for startPrefixMapping - if prefix is found in our omittedNs
set - then ignore.
*/
public void startPrefixMapping(String prefix, String uri)
throws SAXException {
if ( ( omitPlainXmlns && prefix.length()==0)
|| shouldOmitNs(prefix)){
if ( getLogger().isDebugEnabled()){
getLogger().debug("startPrefixMapping: omiting
prefix="+prefix+", uri="+uri);
}
// add uri to omit list
omittedUris.add(uri);
} else {
super.startPrefixMapping(prefix, uri);
}
}
/**
* Hook for endPrefixMapping - if prefix is found in our omittedNs set
- then ignore.
*/
public void endPrefixMapping(String prefix) throws SAXException {
if ( ( omitPlainXmlns && prefix.length()==0)
|| shouldOmitNs(prefix)){
if ( getLogger().isDebugEnabled()){
getLogger().debug("endPrefixMapping: omiting
prefix="+prefix);
}
} else {
super.endPrefixMapping(prefix);
}
}
/**
* Catch and filter out namespace in attributes.
* It is supposed to filter out unwanted <code>xmlns:xyz</code>
* This attribute is "inverted" (it is in <code>xmlns</code> but no
<code>xyz</code>space
* - therefore special catch needed...)
* attribute.
* @see org.xml.sax.ContentHandler#startElement(java.lang.String,
java.lang.String, java.lang.String, org.xml.sax.Attributes)
*/
public void startElement(
String uri,
String name,
String raw,
Attributes attr)
throws SAXException {
Attributes realAttr = attr; // by default pass unmodified
attribute list
if ( attr.getLength()>0){
AttributesImpl myAttr = new AttributesImpl(attr);
// walk attributes backward to
// avoid unnecessary index change
for(int i=myAttr.getLength()-1;i>=0;i--){
String local = myAttr.getLocalName(i);
String qName = myAttr.getQName(i);
// handle omit-plain-xmlns
if ( omitPlainXmlns && qName.equals("xmlns")){
if ( getLogger().isDebugEnabled()){
getLogger().debug("startElement: omitting main xmlns attribute: "
+",qname="+qName+",value="+myAttr.getValue(i));
}
myAttr.removeAttribute(i);
continue;
}
// handle omit-namespaces
if ( qName.startsWith("xmlns:") &&
local.length()>0
&& shouldOmitNs(local) ){
if (
getLogger().isDebugEnabled()){
getLogger().debug("startElement: omitting xmlns attribute: local="+local
+",qname="+qName+",value="+myAttr.getValue(i));
}
myAttr.removeAttribute(i);
}
}
realAttr = myAttr;
}
if ( omittedUris.contains(uri)){
uri = ""; // clear uri
}
super.startElement(uri, name, raw, realAttr);
}
/**
* Omit uris if needed.
* @see org.xml.sax.ContentHandler#endElement(java.lang.String,
java.lang.String, java.lang.String)
*/
public void endElement(String uri, String loc, String qname)
throws SAXException {
if ( omittedUris.contains(uri)){
uri = ""; // clear uri
}
super.endElement(uri, loc, qname);
}
/**
* Returns true if we should omit all namespace prefixes.
* @return
*/
private boolean shouldOmitNs(String nsName)
{
return omittedNs.isEmpty() || omittedNs.contains(nsName);
}
/**
* Parses list of namespace names in form of <code>ns1 ns2 ns3</code>
* and adds them to <code>omitNsStr</code>.
* @param parameters
*/
private void myAddOmittedNamespaces(Parameters parameters) {
String omitNsStr =
parameters.getParameter(OMITNS_OMIT_NAMESPACES,null);
if ( omitNsStr != null){
StringTokenizer t = new StringTokenizer(omitNsStr,"
\t\r\n\f,:");
while ( t.hasMoreTokens()){
String ns = t.nextToken();
ns = ns.trim();
if ( ns.length() > 0){
omittedNs.add(ns);
}
}
}
}
/**
* Returns String of set items (using their toString() method).
* Used for debug purposes.
* @param s
* @return
*/
private String showSet(Set s)
{
StringBuffer b = new StringBuffer();
Iterator i = s.iterator();
while (i.hasNext()){
String str = (String)i.next();
if ( b.length()>0){
b.append(",");
}
b.append(str);
}
return b.toString();
}
}
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