BTW I raised a JIRA to document the XPath/XSLT/XQuery use of parameters/methods/namespaces for accessing headers and properties etc https://issues.apache.org/activemq/browse/CAMEL-918
2008/9/18 raulvk.soa <[EMAIL PROTECTED]>: > > Nevermind. By exploring the source code I found out that the XsltComponent > actually sets all headers and properties as input parameters on the > underlying Xslt Transformer. > > Just to share my findings: all you have to do is find out the name of the > Exchange property or Message header you want to use within your XSLT and > declare it as an <xsl:param> at the top of your XSL file. This will allow > you to use it as any other standard variable inside the XSLT file. > > Just a caveat, while exploring the source code, I found out that if there > are two properties/headers with the same name (even if one is a header and > the other one is a property), the one that is processed second will NOT be > inserted as a parameter on the Transformer and will be ignored. > > Perhaps this logic should be modified to avoid possible misinterpretations > and unintended behaviour. A possible solution is to prefix properties with > the string "property." and headers with "header.", before adding them to the > parameters Hashtable. > > By doing this, properties and headers would be living in separate symbol > spaces and they would not clash. > > What are your thoughts on this? > > > raulvk.soa wrote: >> >> Sorry, apparently its not a header, but a Property, according to the logs. >> >> >> >> raulvk.soa wrote: >>> >>> Hi, >>> >>> How can I access the headers of a message from XSLT? >>> Basically, I am validating a message against an XML Schema, and when the >>> validation fails, I want to generate a specific XML response message that >>> should contain: >>> - the in message >>> - the description of the error >>> - timestamp >>> >>> The in message and the timestamp are not a problem, whereas I see that >>> the error description is stored in the message header >>> "org.apache.camel.processor.DeadLetterChannel.FAILURE_HANDLED". Thus, I >>> need to extract the content of that header from within the XSLT. >>> >>> Any clues? >>> >>> Thanks. >>> >>> >>> >> >> > > -- > View this message in context: > http://www.nabble.com/Headers-in-XSLT-tp19552778s22882p19556970.html > Sent from the Camel - Users mailing list archive at Nabble.com. > > -- James ------- http://macstrac.blogspot.com/ Open Source Integration http://open.iona.com
