Package org.apache.tuscany.sca.implementation.osgi.runtime

Source Code of org.apache.tuscany.sca.implementation.osgi.runtime.OSGiImplementationProviderFactory

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* 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.osgi.runtime;


import org.apache.tuscany.sca.context.ContextFactoryExtensionPoint;
import org.apache.tuscany.sca.context.RequestContextFactory;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
import org.apache.tuscany.sca.core.invocation.ExtensibleProxyFactory;
import org.apache.tuscany.sca.core.invocation.ProxyFactory;
import org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint;
import org.apache.tuscany.sca.core.scope.ScopeRegistry;
import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
import org.apache.tuscany.sca.databinding.TransformerExtensionPoint;
import org.apache.tuscany.sca.databinding.impl.MediatorImpl;
import org.apache.tuscany.sca.implementation.java.injection.JavaPropertyValueObjectFactory;
import org.apache.tuscany.sca.implementation.osgi.OSGiImplementation;
import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.provider.ImplementationProvider;
import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.osgi.framework.BundleException;


/**
* Builds a OSGi-based implementation provider from a component definition
*
* @version $Rev: 683413 $ $Date: 2008-08-06 22:08:43 +0100 (Wed, 06 Aug 2008) $
*/
public class OSGiImplementationProviderFactory implements ImplementationProviderFactory<OSGiImplementation> {
   
    private DataBindingExtensionPoint dataBindings;
    private JavaPropertyValueObjectFactory propertyFactory;
    private ProxyFactory proxyFactory;
    private ScopeRegistry scopeRegistry;
    private MessageFactory messageFactory;
    private InterfaceContractMapper mapper;
   
    private RequestContextFactory requestContextFactory;
   
    public OSGiImplementationProviderFactory(ExtensionPointRegistry extensionPoints ) {
       
        dataBindings = extensionPoints.getExtensionPoint(DataBindingExtensionPoint.class);
        ProxyFactoryExtensionPoint proxyFactories = extensionPoints.getExtensionPoint(ProxyFactoryExtensionPoint.class);
        proxyFactory = new ExtensibleProxyFactory(proxyFactories);
        ContextFactoryExtensionPoint contextFactories = extensionPoints.getExtensionPoint(ContextFactoryExtensionPoint.class);
        requestContextFactory = contextFactories.getFactory(RequestContextFactory.class);
       

        // FIXME: Scope registry is not an extension point, and this usage is specific
        // to implementation.osgi since it needs to change scope after the component is
        // created. Do we need to find a better way?
        scopeRegistry = extensionPoints.getExtensionPoint(ScopeRegistry.class);
       
        TransformerExtensionPoint transformers = extensionPoints.getExtensionPoint(TransformerExtensionPoint.class);
        MediatorImpl mediator = new MediatorImpl(dataBindings, transformers);
        propertyFactory = new JavaPropertyValueObjectFactory(mediator);

        ModelFactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(ModelFactoryExtensionPoint.class);
        messageFactory = modelFactories.getFactory(MessageFactory.class);
       
        UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
        mapper = utilities.getUtility(InterfaceContractMapper.class);
    }

    public ImplementationProvider createImplementationProvider(RuntimeComponent component,
        OSGiImplementation implementation) {
               
        try {
               
            return new OSGiImplementationProvider(component,
                    implementation,
                    dataBindings,
                    propertyFactory,
                    proxyFactory,
                    scopeRegistry,
                    requestContextFactory,
                    messageFactory,
                    mapper
                    );
               
        } catch (BundleException e) {
            throw new RuntimeException(e);
        }
       
    }

    public Class<OSGiImplementation> getModelType() {
        return OSGiImplementation.class;
    }

}
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