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ResourceRenderer.java
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ResourceRenderer.java
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/*
* Copyright 2004-2008 the original author or authors.
*
* 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.springframework.faces.ui;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.render.Renderer;
import org.springframework.faces.ui.resource.ResourceHelper;
import org.springframework.js.resource.ResourceServlet;
import org.springframework.util.Assert;
/**
* {@link Renderer} for the {@code <sf:resource>} tag.
*
* <p>
* Renders a Javascript or CSS include with a URL properly formatted to map to the {@link ResourceServlet}.
* </p>
*
* @author Jeremy Grelle
*/
public class ResourceRenderer extends Renderer {
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
String resourcePath = (String) component.getAttributes().get("path");
Assert.hasText(resourcePath, "Resource component " + component.getClientId(context) + " is missing a path.");
if (!resourcePath.startsWith("/")) {
resourcePath = "/" + resourcePath;
component.getAttributes().put("path", resourcePath);
}
ResourceHelper.renderResource(context, resourcePath);
}
}