> > At 17:53 01/26/01, John McNally wrote:
> > >I would prefer to see something that emphasized the "template" keyword
> > >over "screen" or at least provided a property for it so it is as easy.
> > >Also, would it not be good to include tags to add QueryData and PathInfo
> > >to the URI?
Ok,
I'll give it another try. How about a TemplateLink tag? - this is a tag
that definitely shouldn't be missing.
There is still no QueryData or PathInfo, but it's a start.
BTW, I'd like to see a "RelativeTemplateLink" class in turbine that uses
RelativeDynamicUri instead of DynamicUri. Are you open for this addition? I
can send the code (and code for a RelativeTemplateLinkTag ;-)).
ingo.
Tag definition in the tld
============================================================
<tag>
<name>link</name>
<tagclass>org.apache.turbine.services.jsp.tags.TemplateLinkTag</tagclass>
<bodycontent>JSP</bodycontent>
<attribute>
<name>template</name>
<required>true</required>
</attribute>
<attribute>
<name>action</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
</tag>
Tag.java
============================================================
package org.apache.turbine.services.jsp.tags;
/*
* Copyright (c) 1997-1999 The Java Apache Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, 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. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the Java Apache
* Project for use in the Apache JServ servlet engine project
* <http://java.apache.org/>."
*
* 4. The names "Apache JServ", "Apache JServ Servlet Engine", "Turbine",
* "Apache Turbine", "Turbine Project", "Apache Turbine Project" and
* "Java Apache Project" must not be used to endorse or promote products
* derived from this software without prior written permission.
*
* 5. Products derived from this software may not be called "Apache JServ"
* nor may "Apache" nor "Apache JServ" appear in their names without
* prior written permission of the Java Apache Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the Java Apache
* Project for use in the Apache JServ servlet engine project
* <http://java.apache.org/>."
*
* THIS SOFTWARE IS PROVIDED BY THE JAVA APACHE PROJECT "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 JAVA APACHE PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 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 Java Apache Group. For more information
* on the Java Apache Project and the Apache JServ Servlet Engine project,
* please see <http://java.apache.org/>.
*
*/
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
// Turbine Classes
import org.apache.turbine.util.Log;
import org.apache.turbine.util.RunData;
import org.apache.turbine.util.DynamicURI;
import org.apache.turbine.util.template.TemplateLink;
import org.apache.turbine.services.jsp.JspService;
/**
* Supporting class for the TemplateLink tag.
* Uses the TemplateLink class to construct a URI
*
* @author <a href="mailto:[EMAIL PROTECTED]">Ingo Schuster</a>
*/
public class TemplateLinkTag extends TagSupport
{
/**
* template parameter defines the template to set
* mandatory parameter
*/
private String template;
/**
* The setter for template parameter
*/
public void setTemplate(String template)
{
this.template = template;
}
/**
* action parameter defines the action to set
* optional parameter
*/
private String action;
/**
* The setter for screen parameter
*/
public void setAction(String action)
{
this.action = action;
}
public int doStartTag() throws JspException
{
RunData data =
(RunData)pageContext.getAttribute(JspService.RUNDATA,
PageContext.REQUEST_SCOPE);
TemplateLink link = new TemplateLink( data );
DynamicURI uri = link.setPage( template );
if ( action != null ) uri = uri.setAction( action );
try
{
if (uri != null) {
pageContext.getOut().print(uri.toString());
}
}
catch (Exception e)
{
String message = "Error processing TemplateLink-tag,
parameter: template='"+ template + "', action='" +action +"'";
Log.error(message, e);
try
{
data.getOut().print( message );
}
catch(java.io.IOException ioe) {}
}
return EVAL_BODY_INCLUDE;
}
}
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