/*
* Copyright 2010 Lincoln Baxter, III
*
* 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.ocpsoft.pretty.faces.component.renderer;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.render.Renderer;
import com.ocpsoft.pretty.PrettyContext;
import com.ocpsoft.pretty.PrettyException;
import com.ocpsoft.pretty.faces.component.UrlBuffer;
import com.ocpsoft.pretty.faces.config.PrettyConfig;
import com.ocpsoft.pretty.faces.config.mapping.UrlMapping;
import com.ocpsoft.pretty.faces.util.PrettyURLBuilder;
/**
* @author Lincoln Baxter, III <lincoln@ocpsoft.com>
*/
public class UrlBufferRenderer extends Renderer
{
public static final String RENDERER_TYPE = "com.ocpsoft.pretty.Url";
private final PrettyURLBuilder urlBuilder = new PrettyURLBuilder();
@Override
public void encodeBegin(final FacesContext context, final UIComponent component) throws IOException
{
super.encodeBegin(context, component);
if (!component.isRendered())
{
return;
}
UrlBuffer urlBuffer = (UrlBuffer) component;
String var = (String) urlBuffer.getAttributes().get("var");
String mappingId = (String) component.getAttributes().get("mappingId");
if (mappingId == null)
{
throw new PrettyException("Mapping id was null when attempting to build URL for component: "
+ component.toString() + " <" + component.getClientId(context) + ">");
}
String relative = (String) urlBuffer.getAttributes().get("relative");
PrettyContext prettyContext = PrettyContext.getCurrentInstance(context);
PrettyConfig prettyConfig = prettyContext.getConfig();
UrlMapping urlMapping = prettyConfig.getMappingById(mappingId);
String prettyHref = urlBuilder.build(urlMapping, true, urlBuilder.extractParameters(component));
String contextPath = context.getExternalContext().getRequestContextPath();
String href = (relative == null || "false".equals(relative)) ? contextPath + prettyHref : prettyHref;
context.getExternalContext().getRequestMap().put(var, href);
}
}