/**
* 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 com.sun.facelets.tag.ui;
import java.io.IOException;
import javax.el.ELException;
import javax.el.VariableMapper;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import com.sun.facelets.FaceletContext;
import com.sun.facelets.FaceletException;
import com.sun.facelets.el.VariableMapperWrapper;
import com.sun.facelets.tag.TagAttribute;
import com.sun.facelets.tag.TagConfig;
import com.sun.facelets.tag.TagHandler;
import com.sun.facelets.tag.TagAttributeException;
/**
* @author Jacob Hookom
* @version $Id: IncludeHandler.java,v 1.6 2009/02/02 22:58:59 driscoll Exp $
*/
public final class IncludeHandler extends TagHandler {
private final TagAttribute src;
/**
* @param config
*/
public IncludeHandler(TagConfig config) {
super(config);
this.src = this.getRequiredAttribute("src");
}
/*
* (non-Javadoc)
*
* @see com.sun.facelets.FaceletHandler#apply(com.sun.facelets.FaceletContext,
* javax.faces.component.UIComponent)
*/
public void apply(FaceletContext ctx, UIComponent parent)
throws IOException, FacesException, FaceletException, ELException {
String path = this.src.getValue(ctx);
if (path == null || path.length() == 0) {
return;
}
VariableMapper orig = ctx.getVariableMapper();
ctx.setVariableMapper(new VariableMapperWrapper(orig));
try {
this.nextHandler.apply(ctx, null);
ctx.includeFacelet(parent, path);
} catch (IOException e) {
throw new TagAttributeException(this.tag, this.src, "Invalid path : " + path);
} finally {
ctx.setVariableMapper(orig);
}
}
}