/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.deltaspike.jsf.impl.component.token;
import org.apache.deltaspike.core.api.provider.BeanProvider;
import org.apache.deltaspike.jsf.impl.token.PostRequestTokenManager;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.render.FacesRenderer;
import javax.faces.render.Renderer;
import java.io.IOException;
@FacesRenderer(
componentFamily = PostRequestTokenComponent.COMPONENT_FAMILY,
rendererType = PostRequestTokenComponent.COMPONENT_TYPE)
public class RequestTokenHtmlRenderer extends Renderer
{
private static final String INPUT_ELEMENT = "input";
private static final String TYPE_ATTRIBUTE = "type";
private static final String INPUT_TYPE_HIDDEN = "hidden";
private static final String ID_ATTRIBUTE = "id";
private static final String NAME_ATTRIBUTE = "name";
private static final String VALUE_ATTRIBUTE = "value";
private volatile PostRequestTokenManager postRequestTokenManager;
@Override
public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException
{
ResponseWriter writer = facesContext.getResponseWriter();
writer.startElement(INPUT_ELEMENT, component);
writer.writeAttribute(TYPE_ATTRIBUTE, INPUT_TYPE_HIDDEN, null);
String clientId = component.getClientId(facesContext);
writer.writeAttribute(ID_ATTRIBUTE, clientId, null);
writer.writeAttribute(NAME_ATTRIBUTE, clientId, null);
String currentPostRequestToken = getPostRequestTokenManager().getCurrentToken();
if (currentPostRequestToken != null)
{
writer.writeAttribute(VALUE_ATTRIBUTE, currentPostRequestToken, VALUE_ATTRIBUTE);
}
writer.endElement(INPUT_ELEMENT);
}
//don't use #decode - we couldn't support DSP for immediate actions
private PostRequestTokenManager getPostRequestTokenManager()
{
if (this.postRequestTokenManager == null)
{
synchronized (this)
{
if (this.postRequestTokenManager == null)
{
this.postRequestTokenManager = BeanProvider.getContextualReference(PostRequestTokenManager.class);
}
}
}
return this.postRequestTokenManager;
}
}