Class Redirect

java.lang.Object
org.apache.xalan.lib.Redirect

public class Redirect extends Object
Implements three extension elements to allow an XSLT transformation to redirect its output to multiple output files. It is accessed by specifying a namespace URI as follows:
    xmlns:redirect="http://xml.apache.org/xalan/redirect"
 

You can either just use redirect:write, in which case the file will be opened and immediately closed after the write, or you can bracket the write calls by redirect:open and redirect:close, in which case the file will be kept open for multiple writes until the close call is encountered. Calls can be nested.

Calls can take a 'file' attribute and/or a 'select' attribute in order to get the filename. If a select attribute is encountered, it will evaluate that expression for a string that indicates the filename. If the string evaluates to empty, it will attempt to use the 'file' attribute as a default. Filenames can be relative or absolute. If they are relative, the base directory will be the same as the base directory for the output document. This is obtained by calling getOutputTarget() on the TransformerImpl. You can set this base directory by calling TransformerImpl.setOutputTarget() or it is automatically set when using the two argument form of transform() or transformNode().

Calls to redirect:write and redirect:open also take an optional attribute append="true|yes", which will attempt to simply append to an existing file instead of always opening a new file. The default behavior of always overwriting the file still happens if you do not specify append.

Note: this may give unexpected results when using xml or html output methods, since this is not coordinated with the serializers - hence, you may get extra xml decls in the middle of your file after appending to it.

Example:

 <?xml version="1.0"?>
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
                 version="1.0"
                 xmlns:redirect="http://xml.apache.org/xalan/redirect"
                 extension-element-prefixes="redirect">

   <xsl:template match="/">
     <out>
       default output.
     </out>
     <redirect:open file="doc3.out"/>
     <redirect:write file="doc3.out">
       <out>
         <redirect:write file="doc1.out">
           <out>
             doc1 output.
             <redirect:write file="doc3.out">
               Some text to doc3
             </redirect:write>
           </out>
         </redirect:write>
         <redirect:write file="doc2.out">
           <out>
             doc2 output.
             <redirect:write file="doc3.out">
               Some more text to doc3
               <redirect:write select="doc/foo">
                 text for doc4
               </redirect:write>
             </redirect:write>
           </out>
         </redirect:write>
       </out>
     </redirect:write>
     <redirect:close file="doc3.out"/>
   </xsl:template>

 </xsl:stylesheet>
 
Version:
1.0
Author:
Scott Boag
See Also: