/* See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* Esri Inc. 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 com.esri.gpt.framework.jsf.components;
import java.io.IOException;
import java.io.Serializable;
import java.util.logging.Level;
import javax.faces.component.UIComponentBase;
import javax.faces.context.FacesContext;
import javax.faces.el.MethodBinding;
import com.esri.gpt.framework.jsf.FacesContextBroker;
import com.esri.gpt.framework.jsf.MessageBroker;
import com.esri.gpt.framework.jsf.PageContext;
import com.esri.gpt.framework.util.LogUtil;
/**
* Initializes view of the page.
* Calls actionListener to initialize page and updates error/success messages.
* @see PrepareViewTag
*/
public class UIPrepareView extends UIComponentBase implements Serializable {
// class variables =============================================================
/** The JSF Component type. */
public static final String COMPONENT_TYPE = "com.esri.gpt.faces.PrepareView";
/** The JSF Component family. */
public static final String COMPONENT_FAMILY = COMPONENT_TYPE;
// instance variables ==========================================================
// constructors ================================================================
// properties ==================================================================
// methods =====================================================================
/**
* Gets component family.
* @return component family ({@link UIPrepareView#COMPONENT_FAMILY})
*/
@Override
public String getFamily() {
return COMPONENT_FAMILY;
}
/**
* Completes begin phase of component encoding.
* @param context faces context
* @throws IOException if encoding fails
*/
@Override
public void encodeBegin(FacesContext context) throws IOException {
super.encodeBegin(context);
try {
PageContext pageContext = PageContext.extract();
if (pageContext!=null && pageContext.getPrepareView().length()>0) {
// infoke action listener
MethodBinding binding = context.getApplication().createMethodBinding(
pageContext.getPrepareView(), null);
binding.invoke(context, null);
}
} catch (Throwable t) {
MessageBroker messageBroker =
new FacesContextBroker().extractMessageBroker();
messageBroker.addErrorMessage(t);
LogUtil.getLogger().log(Level.SEVERE,"Exception raised.",t);
}
}
}