jee-modules/jsf-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jsf/impl/listener/phase/ViewControllerInterceptor.java

/*
 * 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.myfaces.extensions.cdi.jsf.impl.listener.phase;

import org.apache.myfaces.extensions.cdi.core.api.config.view.View;
import org.apache.myfaces.extensions.cdi.core.api.config.view.ViewConfig;
import org.apache.myfaces.extensions.cdi.jsf.impl.listener.phase.spi.ViewControllerStrategy;

import javax.inject.Inject;
import javax.interceptor.AroundInvoke;
import javax.interceptor.Interceptor;
import javax.interceptor.InvocationContext;
import java.io.Serializable;

/**
 * interceptor for {@link View} - details see {@link ViewControllerStrategy}
 */

@View(ViewControllerInterceptor.PlaceHolderConfig.class)
@Interceptor
public class ViewControllerInterceptor implements Serializable
{
    private static final long serialVersionUID = -1562171889458823736L;

    interface PlaceHolderConfig extends ViewConfig{}

    @Inject
    private ViewControllerStrategy viewControllerStrategy;

    /**
     * Alternative to view-controller configured via view-configs
     * @param invocationContext current invocation-context
     * @return result of the intercepted method
     * @throws Exception exception which might be thrown by the intercepted method
     */
    @AroundInvoke
    public Object filterPhaseListenerMethods(InvocationContext invocationContext) throws Exception
    {
        return this.viewControllerStrategy.execute(invocationContext);
    }
}