Package org.apache.tuscany.sca.binding.atom.provider

Source Code of org.apache.tuscany.sca.binding.atom.provider.AtomServiceBindingProvider

/*
* 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.binding.atom.provider;

import org.apache.tuscany.sca.binding.atom.AtomBinding;
import org.apache.tuscany.sca.databinding.Mediator;
import org.apache.tuscany.sca.host.http.ServletHost;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.provider.ServiceBindingProvider;
import org.apache.tuscany.sca.runtime.Invocable;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentService;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;

/**
* Implementation of the Atom binding provider.
*
* @version $Rev: 881883 $ $Date: 2009-11-18 11:06:40 -0800 (Wed, 18 Nov 2009) $
*/
class AtomServiceBindingProvider implements ServiceBindingProvider {
    private MessageFactory messageFactory;

    private RuntimeEndpoint endpoint;

    private RuntimeComponent component;
    private RuntimeComponentService service;
    private InterfaceContract serviceContract;
    private AtomBinding binding;
    private ServletHost servletHost;
    private Mediator mediator;
   
    private String servletMapping;
    private String bindingURI;

    AtomServiceBindingProvider(RuntimeEndpoint endpoint,
                               MessageFactory messageFactory,
                               Mediator mediator,
                               ServletHost servletHost) {
        this.endpoint = endpoint;
        this.component = (RuntimeComponent)endpoint.getComponent();
        this.service = (RuntimeComponentService)endpoint.getService();
        this.binding = (AtomBinding) endpoint.getBinding();

        this.servletHost = servletHost;
        this.messageFactory = messageFactory;
        this.mediator = mediator;

        // TUSCANY-3166
        this.serviceContract = endpoint.getComponentTypeServiceInterfaceContract();
    }

    public InterfaceContract getBindingInterfaceContract() {
        return serviceContract;
    }
   
    public boolean supportsOneWayInvocation() {
        return false;
    }

    public void start() {
        Invocable wire = (RuntimeEndpoint) endpoint;

        AtomBindingListenerServlet servlet =
            new AtomBindingListenerServlet(wire, messageFactory, mediator, binding.getTitle(), binding.getDescription());

        servletMapping = binding.getURI();
        if (!servletMapping.endsWith("/")) {
            servletMapping += "/";
        }
        if (!servletMapping.endsWith("*")) {
            servletMapping += "*";
        }
        servletHost.addServletMapping(servletMapping, servlet);
       
        bindingURI = binding.getURI();
        if (!bindingURI.endsWith("/")) {
            bindingURI += "/";
        }

        servletHost.addServletMapping(bindingURI, servlet);
    }

    public void stop() {
        servletHost.removeServletMapping(servletMapping);
        servletHost.removeServletMapping(bindingURI);
    }
}
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