trunk/core/src/main/java/org/apache/struts2/jsf/UpdateModelValuesInterceptor.java

/*
 * $Id$
 *
 * Copyright 2006 The Apache Software Foundation.
 *
 * 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.apache.struts2.jsf;

import javax.faces.FacesException;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseId;

/**
 * Updates the model values from the component tree
 */
public class UpdateModelValuesInterceptor extends FacesInterceptor {

    private static final long serialVersionUID = 4011504235094251077L;

    /**
     * Update Model Values (JSF.2.2.4)
     * 
     * @param viewId
     *            The view id
     * @param facesContext
     *            The faces context
     * @return true, if response is complete
     */
    protected boolean executePhase(String viewId, FacesContext facesContext)
            throws FacesException {
        boolean skipFurtherProcessing = false;
        if (log.isTraceEnabled())
            log.trace("entering updateModelValues");

        informPhaseListenersBefore(facesContext, PhaseId.UPDATE_MODEL_VALUES);

        try {
            if (isResponseComplete(facesContext, "updateModelValues", true)) {
                // have to return right away
                return true;
            }
            if (shouldRenderResponse(facesContext, "updateModelValues", true)) {
                skipFurtherProcessing = true;
            }

            facesContext.getViewRoot().processUpdates(facesContext);
        } finally {
            informPhaseListenersAfter(facesContext, PhaseId.UPDATE_MODEL_VALUES);
        }

        if (isResponseComplete(facesContext, "updateModelValues", false)
                || shouldRenderResponse(facesContext, "updateModelValues",
                        false)) {
            // since this phase is completed we don't need to return right away
            // even if the response is completed
            skipFurtherProcessing = true;
        }

        if (!skipFurtherProcessing && log.isTraceEnabled())
            log.trace("exiting updateModelValues");

        return skipFurtherProcessing;
    }
}