/**
* (The MIT License)
*
* Copyright (c) 2008 - 2011:
*
* * {Aaron Patterson}[http://tenderlovemaking.com]
* * {Mike Dalessio}[http://mike.daless.io]
* * {Charles Nutter}[http://blog.headius.com]
* * {Sergio Arbeo}[http://www.serabe.com]
* * {Patrick Mahoney}[http://polycrystal.org]
* * {Yoko Harada}[http://yokolet.blogspot.com]
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* 'Software'), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package nokogiri.internals;
import org.jruby.javasupport.JavaUtil;
import org.jruby.javasupport.util.RuntimeHelpers;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import nokogiri.XsltStylesheet;
/**
* XSLT extension function caller. Currently, this class is not used because
* parsing XSL file with extension function (written in Java) fails. The reason of
* the failure is a conflict of Java APIs. When xercesImpl.jar or jing.jar, or both
* are on a classpath, parsing fails. Assuming parsing passes, this class will be
* used as in below:
*
* <xsl:stylesheet
* xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
* xmlns:f="xalan://nokogiri.internals.XsltExtensionFunction"
* extension-element-prefixes="f"
* version="1.0">
* <xsl:template match="text()">
* <xsl:copy-of select="f:call('capitalize', string(.))"/>
* </xsl:template>
* ...
* </xsl:stylesheet>
*
* @author Yoko Harada <yokolet@gmail.com>
*/
public class XsltExtensionFunction {
public static Object call(String method, Object arg) {
if (XsltStylesheet.getRegistry() == null) return null;
ThreadContext context = (ThreadContext) XsltStylesheet.getRegistry().get("context");
IRubyObject receiver = (IRubyObject)XsltStylesheet.getRegistry().get("receiver");
if (context == null || receiver == null) return null;
IRubyObject arg0 = JavaUtil.convertJavaToUsableRubyObject(context.getRuntime(), arg);
IRubyObject result = RuntimeHelpers.invoke(context, receiver, method, arg0);
return result.toJava(Object.class);
}
}