SimpleServiceFactory.java

/**
 *   GRANITE DATA SERVICES
 *   Copyright (C) 2006-2015 GRANITE DATA SERVICES S.A.S.
 *
 *   This file is part of the Granite Data Services Platform.
 *
 *   Granite Data Services 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 2.1 of the License, or (at your option) any later version.
 *
 *   Granite Data Services 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 *   USA, or see <http://www.gnu.org/licenses/>.
 */
package org.granite.tide.simple;

import java.util.Map;

import org.granite.config.flex.Destination;
import org.granite.config.flex.ServicesConfig;
import org.granite.context.GraniteContext;
import org.granite.messaging.service.ServiceException;
import org.granite.messaging.service.ServiceFactory;
import org.granite.messaging.service.ServiceInvoker;
import org.granite.scan.ScannedItemHandler;
import org.granite.tide.TideServiceInvoker;

import flex.messaging.messages.RemotingMessage;

/**
 * @author Franck WOLFF
 */
public class SimpleServiceFactory extends ServiceFactory {

    public static ScannedItemHandler getScannedItemHandler() {
        return SimpleScannedItemHandler.instance(true);
    }

    @Override
    public ServiceInvoker<?> getServiceInstance(RemotingMessage request) throws ServiceException {
        String messageType = request.getClass().getName();
        String destinationId = request.getDestination();

        GraniteContext context = GraniteContext.getCurrentInstance();
        Map<String, Object> cache = context.getApplicationMap();
        Destination destination = ((ServicesConfig)context.getServicesConfig()).findDestinationById(messageType, destinationId);
        String key = TideServiceInvoker.class.getName() + '.' + destinationId;

        return getServiceInvoker(cache, destination, key);
    }

    private synchronized ServiceInvoker<?> getServiceInvoker(Map<String, Object> cache, Destination destination, String key) {
        ServiceInvoker<?> invoker = (ServiceInvoker<?>)cache.get(key);
        if (invoker != null)
        	return invoker;

        SimpleServiceContext tideContext = new SimpleServiceContext();
        invoker = new TideServiceInvoker<SimpleServiceFactory>(destination, this, tideContext);
        cache.put(key, invoker);
        return invoker;
    }
}