/*
 * 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.test.mock;

import javax.el.ELContext;
import javax.el.ELContextEvent;
import javax.el.ELContextListener;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.lifecycle.Lifecycle;

import org.apache.myfaces.test.el.MockELContext;

/**
 * <p>Mock implementation of <code>FacesContext</code> that includes the semantics
 * added by JavaServer Faces 1.2.</p>
 *
 * $Id$
 *
 * @since 1.0.4
 */

public class MockFacesContext12 extends MockFacesContext {


    // ------------------------------------------------------------ Constructors


    public MockFacesContext12() {
        super();
        setCurrentInstance(this);
    }


    public MockFacesContext12(ExternalContext externalContext) {
        super(externalContext);
    }


    public MockFacesContext12(ExternalContext externalContext, Lifecycle lifecycle) {
        super(externalContext, lifecycle);
    }


    // ----------------------------------------------------- Mock Object Methods


    /**
     * <p>Set the <code>ELContext</code> instance for this instance.</p>
     *
     * @param elContext The new ELContext
     */
    public void setELContext(ELContext elContext) {

        this.elContext = elContext;

    }


    // ------------------------------------------------------ Instance Variables


    private ELContext elContext = null;


    // ---------------------------------------------------- FacesContext Methods


    /** {@inheritDoc} */
    public ELContext getELContext() {

        if (this.elContext == null) {

            // Initialize a new ELContext
            this.elContext = new MockELContext();
            this.elContext.putContext(FacesContext.class, this);

            // Notify interested listeners that this ELContext was created
            ELContextListener[] listeners = getApplication().getELContextListeners();
            if ((listeners != null) && (listeners.length > 0)) {
                ELContextEvent event = new ELContextEvent(this.elContext);
                for (int i = 0; i < listeners.length; i++) {
                    listeners[i].contextCreated(event);
                }
            }

        }
        return this.elContext;

    }


    /** {@inheritDoc} */
    public void release() {
        super.release();
        this.elContext = null;
    }


}