package org.apache.turbine.services.jsp.tags;
/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License")
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.io.IOException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.turbine.modules.NavigationLoader;
import org.apache.turbine.services.TurbineServices;
import org.apache.turbine.services.jsp.JspService;
import org.apache.turbine.services.template.TemplateService;
import org.apache.turbine.util.Log;
import org.apache.turbine.util.RunData;
import org.apache.turbine.util.template.TemplateInfo;
/**
* Supporting class for the bodyAttributes tag.
* Sends the contents of the a screen's body tag's attributes
* parameter to the output stream. If the screen did not set
* the attributes parameter, a default may be used if specified
* in this tag. Example usage:
* <body <x:bodyAttributes default='onLoad="jsfunc()"' />>
*
* @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a>
* @version $Id: NavigationTag.java 221882 2004-05-20 03:06:52Z seade $
*/
public class NavigationTag extends TagSupport
{
/**
* template parameter defines the template whose contents will replace
* this tag in the layout.
*/
private String template;
/**
* The setter for template parameter
*/
public void setTemplate(String template)
{
this.template = template;
}
/**
* Method called when the tag is encountered to send the navigation
* template's contents to the output stream
*
* @return SKIP_BODY, as it is intended to be a single tag.
*/
public int doStartTag() throws JspException
{
RunData data = (RunData)pageContext
.getAttribute(JspService.RUNDATA, PageContext.REQUEST_SCOPE);
data.getTemplateInfo().setNavigationTemplate(template);
String module = null;
try
{
pageContext.getOut().flush();
module = ((TemplateService)TurbineServices.getInstance().getService(
TemplateService.SERVICE_NAME)).getNavigationName(template);
NavigationLoader.getInstance().exec(data, module);
}
catch (Exception e)
{
String message = "Error processing navigation template:" +
template + " using module: " + module;
Log.error(message, e);
try
{
data.getOut().print("Error processing navigation template: "
+ template + " using module: " + module);
}
catch(java.io.IOException ioe) {}
}
return SKIP_BODY;
}
}
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