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package com.sun.faces.facelets.tag.ui;
import com.sun.faces.facelets.el.VariableMapperWrapper;
import com.sun.faces.facelets.tag.TagHandlerImpl;
import com.sun.faces.util.FacesLogger;
import javax.el.VariableMapper;
import javax.faces.component.UIComponent;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.TagAttribute;
import javax.faces.view.facelets.TagAttributeException;
import javax.faces.view.facelets.TagConfig;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.faces.view.facelets.TagException;
/**
* @author Jacob Hookom
*/
public final class IncludeHandler extends TagHandlerImpl {
private static final Logger log = FacesLogger.FACELETS_INCLUDE.getLogger();
private final TagAttribute src;
/**
* @param config
*/
public IncludeHandler(TagConfig config) {
super(config);
TagAttribute attr = null;
attr = this.getAttribute("src");
if (null == attr) {
attr = this.getAttribute("file");
}
if (null == attr) {
attr = this.getAttribute("page");
}
if (null == attr) {
throw new TagException(this.tag, "Attribute 'src', 'file' or 'page' is required");
}
this.src = attr;
}
/*
* (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 {
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) {
if (log.isLoggable(Level.FINE)) {
log.log(Level.FINE, e.toString(), e);
}
throw new TagAttributeException(this.tag, this.src, "Invalid path : " + path);
} finally {
ctx.setVariableMapper(orig);
}
}
}