/**
* Copyright (C) 2012 JBoss Inc
*
* 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.
*/
package org.jboss.dashboard.ui.taglib.factory;
import org.jboss.dashboard.factory.Factory;
import org.jboss.dashboard.profiler.CodeBlockTrace;
import org.jboss.dashboard.ui.components.HandlerFactoryElement;
import org.jboss.dashboard.ui.components.UIComponentHandlerFactoryElement;
import javax.servlet.jsp.JspTagException;
public class UseComponentTag extends GenericFactoryTag {
private static transient org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(UseComponentTag.class.getName());
public static final String COMPONENT_ATTR_NAME = "currentComponentBeingRendered";
/**
* @see javax.servlet.jsp.tagext.TagSupport
*/
public int doEndTag() throws JspTagException {
Object bean = Factory.lookup(getBean());
if (bean != null) {
if (bean instanceof UIComponentHandlerFactoryElement) {
UIComponentHandlerFactoryElement uiBean = (UIComponentHandlerFactoryElement) bean;
String page = uiBean.getComponentIncludeJSP();
if (page == null) log.error("Page for component " + getBean() + " is null.");
CodeBlockTrace trace = new HandlerFactoryElement.HandlerTrace(uiBean, null).begin();
Object previousComponent = pageContext.getRequest().getAttribute(COMPONENT_ATTR_NAME);
try {
uiBean.beforeRenderComponent();
pageContext.getRequest().setAttribute(COMPONENT_ATTR_NAME, bean);
jspInclude(page);
pageContext.getRequest().setAttribute(COMPONENT_ATTR_NAME, previousComponent);
uiBean.afterRenderComponent();
} catch (Exception e) {
handleError(e);
} finally {
pageContext.getRequest().setAttribute(COMPONENT_ATTR_NAME, previousComponent);
trace.end();
}
} else {
log.error("Bean " + getBean() + " is not a UIComponentHandlerFactoryElement");
}
} else {
log.error("Bean " + getBean() + " is null.");
}
return EVAL_PAGE;
}
/**
* @see javax.servlet.jsp.tagext.TagSupport
*/
public int doStartTag() throws JspTagException {
return SKIP_BODY;
}
}