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/***
 * OW2 FraSCAti Tinfi
 * Copyright (C) 2007-2018 Inria, Univ. Lille
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Contact: [email protected]
 *
 * Author: Lionel Seinturier
 */

package org.ow2.frascati.tinfi;

import org.oasisopen.sca.RequestContext;
import org.objectweb.fractal.api.Component;
import org.objectweb.fractal.api.NoSuchInterfaceException;
import org.objectweb.fractal.api.Type;
import org.ow2.frascati.tinfi.api.control.ContentInstantiationException;
import org.ow2.frascati.tinfi.api.control.SCAContentController;
import org.ow2.frascati.tinfi.control.content.SCAExtendedContentController;
import org.ow2.frascati.tinfi.oasis.RequestContextImpl;

/**
 * The root class for Tinfi component callback interfaces.
 * 
 * @author Lionel Seinturier 
 */
public class TinfiComponentCBInterface extends TinfiComponentInterface {

    public TinfiComponentCBInterface() { super(); }
    public TinfiComponentCBInterface(
        Component owner, String s, Type type, boolean flag, Object obj ) {
        super(owner,s,type,flag,obj);
    }

    // -----------------------------------------------------------------------
    // Request context and content instance management.
    // These methods are used by generated subclasses.
    // -----------------------------------------------------------------------
    
    /**
     * Register the current request context and return the content instance
     * corresponding to the current scope policy.
     * 
     * @since 1.1.1
     */
    protected  B setRequestContextAndGet(
        String serviceName, Class businessInterface, B service ) {
        
        // Register the current request context
        SCAExtendedContentController cc = getFcSCAContentCtrlItf();
        RequestContext rc =
            new RequestContextImpl(serviceName,businessInterface,service);
        cc.setRequestContext(rc);

        // Get a new content instance
        try {
            Object content = cc.getFcContent();
            return (B) content;
        }
        catch( ContentInstantiationException e ) {
            throw new TinfiRuntimeException(e);
        }
    }
    
    /**
     * Release the specified content instance previously retrieved with method
     * getFcContent().
     * 
     * @param content  the content instance which is released
     * @param isEndMethod
     *      true if the method which releases the content instance
     *      is annotated with @EndsConversation
     * @since 1.1.1
     */
    protected void releaseContent( Object content, boolean isEndMethod ) {
        SCAExtendedContentController cc = getFcSCAContentCtrlItf();
        cc.releaseFcContent(content,isEndMethod);
    }
        
    /**
     * Return the reference of the SCA content controller associated to the
     * current component.
     */
    private SCAExtendedContentController getFcSCAContentCtrlItf() {
        try {
            if( cc == null ) {
                cc = (SCAExtendedContentController)
                    owner.getFcInterface(SCAContentController.NAME);
            }
            return cc;
          }
          catch( NoSuchInterfaceException e ) {
              throw new TinfiRuntimeException(e);
          }
    }
    private SCAExtendedContentController cc;
}