the problem is a ClassCastException because the code was changed to use a
ServiceSelector, but the configuration uses a ExtendedComponentSelector. I
send you the diff what was changed. You can replace ServiceSelector back to
ComponentSelector and it will work again. It seam that there is no
ExtendedServiceSelector available.
Volker
Index: java/org/apache/cocoon/transformation/TagTransformer.java
===================================================================
RCS file:
/home/cvspublic/cocoon-2.1/src/blocks/taglib/java/org/apache/cocoon/transformation/TagTransformer.java,v
retrieving revision 1.6
diff -u -r1.6 TagTransformer.java
--- java/org/apache/cocoon/transformation/TagTransformer.java 5 Mar
2004 13:02:25 -0000 1.6
+++ java/org/apache/cocoon/transformation/TagTransformer.java 14 Jun
2004 06:26:55 -0000
@@ -28,6 +28,7 @@
import org.apache.commons.collections.map.StaticBucketMap;
import org.apache.avalon.excalibur.pool.Recyclable;
import org.apache.avalon.framework.activity.Disposable;
+import org.apache.avalon.framework.component.ComponentSelector;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
@@ -194,7 +195,7 @@
Tag tag = (Tag) tagStack.pop();
if (tag != null) {
- ServiceSelector tagSelector
= (ServiceSelector)tagSelectorStack.pop();
+ ComponentSelector tagSelector
= (ComponentSelector)tagSelectorStack.pop();
try {
if (saxFragment != null) {
//start Iteration
@@ -315,7 +316,7 @@
Tag tag = (Tag) tagStack.pop();
if (tag == null)
continue;
- ServiceSelector tagSelector
= (ServiceSelector)tagSelectorStack.pop();
+ ComponentSelector tagSelector
= (ComponentSelector)tagSelectorStack.pop();
tagSelector.release(tag);
tagNamespaceSelector.release(tagSelector);
@@ -424,10 +425,10 @@
Tag tag = null;
if (namespaceURI != null && namespaceURI.length() > 0) {
- ServiceSelector tagSelector = null;
+ ComponentSelector tagSelector = null;
Transformer tagTransformer = null;
try {
- tagSelector = (ServiceSelector)
tagNamespaceSelector.select(namespaceURI);
+ tagSelector = (ComponentSelector)
tagNamespaceSelector.select(namespaceURI);
tagSelectorStack.push(tagSelector);
// namespace matches tag library, lookup tag now.
Hello,
I had tried to write my own taglib using the TagTransformer but it
doesn't work. I can't find some informations about it, so I had copied
the example and changed something but it doesn't work. I want to use a
tag <hello/> to print out "HELLO WORLD". My changes in detail:
1.) I had written my own class HelloWorldTag:
package foo.bar.taglib;
import org.apache.cocoon.taglib.XMLProducerTagSupport;
import org.xml.sax.SAXException;
import org.xml.sax.Attributes;
public class HelloWorldTag extends XMLProducerTagSupport {
public int doStartTag(String namespaceURI, String localName, String
qName, Attributes atts)
throws SAXException {
String hello = "HELLO WORLD";
this.xmlConsumer.characters(hello.toCharArray(), 0,
hello.length());
this.getLogger().error("T E X T = " + hello);
return this.EVAL_BODY;
}
}
2.) I had created a subproject tagtest containing a xml file tagtest.xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<root xmlns:test="urn:apache:taglib:hello">
<test:hello/>
</root>
3.) My sitemap looks as follow:
<?xml version="1.0" encoding="UTF-8"?>
<map:sitemap xmlns:map="http://apache.org/cocoon/sitemap/1.0";>
<map:components>
<map:transformers default="tag">
<map:transformer name="tag"
src="org.apache.cocoon.transformation.TagTransformer" pool-max="64"
pool-min="0" pool-grow="2" logger="sitemap.transformer.newtag">
<transformer-hint>tag</transformer-hint>
</map:transformer>
</map:transformers>
</map:components>
<map:pipelines>
<map:pipeline>
<map:match pattern="">
<map:generate type="file" src="tagtest.xml"/>
<map:transform type="tag"/>
<map:serialize type="xml"/>
</map:match>
</map:pipeline>
</map:pipelines>
</map:sitemap>
3.) In cocoon.xconf I had registered the tag :
<taglib
class="org.apache.cocoon.components.ExtendedComponentSelector"
logger="sitemap.taglib.core" name="urn:apache:taglib:hello">
<tag class="foo.bar.taglib.HelloWorldTag"
logger="sitemap.taglib.core.source" name="hello"/>
</taglib>
4.) After calling http://localhost:8080/cocoon/tagtest the tag <hello/>
will not be replaces by "HELLO WORLD". I got the following output -
nothing parsed:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<root xmlns:test="urn:apache:taglib:hello">
<test:hello />
</root>
What is wrong here? Thank you for your help.
PS: I had tried the taglib block it seems it doesn't work, too! Whats
about this block? Is it deprecated?
Regards
Stephan
