jee-modules/jsf-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jsf/impl/listener/action/CodiActionListener.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.action;

import org.apache.myfaces.extensions.cdi.core.api.activation.Deactivatable;
import org.apache.myfaces.extensions.cdi.core.impl.util.ClassDeactivation;
import org.apache.myfaces.extensions.cdi.jsf.impl.security.SecurityViolationAwareActionListener;
import org.apache.myfaces.extensions.cdi.jsf.impl.config.view.ViewControllerActionListener;

import javax.faces.event.ActionListener;
import javax.faces.event.ActionEvent;

/**
 * Aggregates {@link ActionListener} implementations provided by CODI to ensure a deterministic behaviour
 */
public class CodiActionListener implements ActionListener, Deactivatable
{
    private final ActionListener wrapped;
    private final boolean deactivated;

    /**
     * Constructor for wrapping the given {@link ActionListener}
     * @param wrapped action-listener which should be wrapped
     */
    public CodiActionListener(ActionListener wrapped)
    {
        this.wrapped = wrapped;
        this.deactivated = !isActivated();
    }

    /**
     * {@inheritDoc}
     */
    public void processAction(ActionEvent actionEvent)
    {
        if(this.deactivated)
        {
            this.wrapped.processAction(actionEvent);
        }
        else
        {
            getWrappedActionListener().processAction(actionEvent);
        }
    }

    private ActionListener getWrappedActionListener()
    {
        SecurityViolationAwareActionListener viewConfigAwareNavigationHandler =
                new SecurityViolationAwareActionListener(this.wrapped);

        return new ViewControllerActionListener(viewConfigAwareNavigationHandler);
    }

    /**
     * {@inheritDoc}
     */
    public boolean isActivated()
    {
        return ClassDeactivation.isClassActivated(getClass());
    }
}