modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/WebImplementationProviderFactory.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.tuscany.sca.implementation.web.runtime;

import java.util.List;

import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.host.http.ServletHost;
import org.apache.tuscany.sca.host.http.ServletHostExtensionPoint;
import org.apache.tuscany.sca.implementation.web.WebImplementation;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.provider.ImplementationProvider;
import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentService;

public class WebImplementationProviderFactory implements ImplementationProviderFactory<WebImplementation> {

    private ServletHost servletHost;

    public WebImplementationProviderFactory(ExtensionPointRegistry extensionPoints) {
        ServletHostExtensionPoint servletHosts = extensionPoints.getExtensionPoint(ServletHostExtensionPoint.class);
        List<ServletHost> hosts = servletHosts.getServletHosts();
        if (!hosts.isEmpty()) {
            this.servletHost = hosts.get(0);
        }
    }

    public ImplementationProvider createImplementationProvider(RuntimeComponent component, WebImplementation implementation) {
        servletHost.setAttribute("org.apache.tuscany.sca.implementation.web.RuntimeComponent", component);

        return new ImplementationProvider() {
            
            public Invoker createInvoker(RuntimeComponentService arg0, Operation arg1) {
                throw new UnsupportedOperationException("Components using implementation.web have no services");
            }
            public void start() {
            }
            public void stop() {
            }
            public boolean supportsOneWayInvocation() {
                return false;
            }
        };
    }
    
    public Class<WebImplementation> getModelType() {
        return WebImplementation.class;
    }
    
}