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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.openejb.server.cxf;

import org.apache.cxf.Bus;
import org.apache.cxf.binding.soap.SoapTransportFactory;
import org.apache.openejb.BeanContext;
import org.apache.openejb.assembler.classic.util.ServiceConfiguration;
import org.apache.openejb.core.ivm.naming.JaxWsServiceReference;
import org.apache.openejb.core.webservices.PortData;
import org.apache.openejb.loader.SystemInstance;
import org.apache.openejb.server.ServiceException;
import org.apache.openejb.server.cxf.client.SaajInterceptor;
import org.apache.openejb.server.cxf.client.WebServiceInjectionConfigurator;
import org.apache.openejb.server.cxf.ejb.EjbWsContainer;
import org.apache.openejb.server.cxf.event.ServerCreated;
import org.apache.openejb.server.cxf.event.ServerDestroyed;
import org.apache.openejb.server.cxf.pojo.PojoWsContainer;
import org.apache.openejb.server.cxf.transport.util.CxfUtil;
import org.apache.openejb.server.httpd.HttpListener;
import org.apache.openejb.server.webservices.WsService;
import org.apache.openejb.util.AppFinder;

import javax.naming.Context;
import java.net.URL;
import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;

public class CxfService extends WsService {
    public static final String OPENEJB_JAXWS_CXF_FEATURES = "features";

    private final Map wsContainers = new TreeMap();

    private SoapTransportFactory transportFactory;
    private boolean factoryByListener;

    public String getName() {
        return "cxf";
    }

    @Override
    public void init(final Properties props) throws java.lang.Exception {
        super.init(props);
        CxfUtil.configureBus();
        SaajInterceptor.registerInterceptors();

        factoryByListener = "true".equalsIgnoreCase(props.getProperty("openejb.cxf.factoryByListener", "false"));
        transportFactory = new SoapTransportFactory();

        if (SystemInstance.get().getComponent(JaxWsServiceReference.WebServiceClientCustomizer.class) == null) {
            SystemInstance.get().setComponent(JaxWsServiceReference.WebServiceClientCustomizer.class, new WebServiceInjectionConfigurator());
        }
    }

    @Override
    public void stop() throws ServiceException {
        super.stop();
        CxfUtil.release();
    }

    @Override
    protected void setWsdl(final HttpListener listener, final String wsdl) {
        if (CxfWsContainer.class.isInstance(listener)) {
            CxfWsContainer.class.cast(listener).setWsldUrl(wsdl);
        }
    }

    private SoapTransportFactory newTransportFactory() {
        return !factoryByListener ? transportFactory : new SoapTransportFactory();
    }

    protected HttpListener createEjbWsContainer(URL moduleBaseUrl, PortData port, BeanContext beanContext, ServiceConfiguration config) {
        final Bus bus = CxfUtil.getBus();

        final ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(CxfUtil.initBusLoader());
        try {
            CxfCatalogUtils.loadOASISCatalog(bus, moduleBaseUrl, "META-INF/jax-ws-catalog.xml");

            final EjbWsContainer container = new EjbWsContainer(bus, newTransportFactory(), port, beanContext, config);
            container.start();
            wsContainers.put(beanContext.getDeploymentID().toString(), container);
            SystemInstance.get().fireEvent(new ServerCreated(
                    container.getEndpoint().getServer(),
                    beanContext.getModuleContext().getAppContext()));
            return container;
        } finally {
            if (oldLoader != null) {
                CxfUtil.clearBusLoader(oldLoader);
            }
        }
    }

    protected HttpListener createPojoWsContainer(ClassLoader loader, URL moduleBaseUrl, PortData port, String serviceId, Class target, Context context, String contextRoot, Map bdgs, ServiceConfiguration services) {
        // if the POJO web service has by mistake an @Stateless or @Singleton, then just returned already created container.
        // this is undefined by the spec and if we let it go to the POJO deployment logic, the POJO endpoint
        // will ask the bean manager for the instance and it will get an EJB Proxy that will fail
        // during invocation because we'll use the default JAXWSMethodInvoker instead of the EJBMethodInvoker
        // if it's deployed with EJB scanning already the serviceId should match beanContext.getDeploymentID()
        if (wsContainers.get(serviceId) != null) {
            return wsContainers.get(serviceId);
        }

        Bus bus = CxfUtil.getBus();

        final ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(CxfUtil.initBusLoader());
        try {
            CxfCatalogUtils.loadOASISCatalog(bus, moduleBaseUrl, "META-INF/jax-ws-catalog.xml");

            PojoWsContainer container = new PojoWsContainer(loader, newTransportFactory(), bus, port, context, target, bdgs, services);
            container.start();
            wsContainers.put(serviceId, container);
            SystemInstance.get().fireEvent(new ServerCreated(
                    container.getEndpoint().getServer(),
                    AppFinder.findAppContextOrWeb(loader, AppFinder.AppContextTransformer.INSTANCE)));
            return container;
        } finally {
            if (oldLoader != null) {
                CxfUtil.clearBusLoader(oldLoader);
            }
        }
    }

    protected void destroyPojoWsContainer(final String serviceId) {
        destroyWsContainer(serviceId);
    }

    protected void destroyEjbWsContainer(final String deploymentId) {
        destroyWsContainer(deploymentId);
    }

    protected void destroyWsContainer(final String serviceId) {
        CxfWsContainer container = wsContainers.remove(serviceId);
        if (container != null) {
            final ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
            Thread.currentThread().setContextClassLoader(CxfUtil.initBusLoader());
            try {
                container.destroy();
                SystemInstance.get().fireEvent(new ServerDestroyed(container.getEndpoint().getServer()));
            } finally {
                if (oldLoader != null) {
                    CxfUtil.clearBusLoader(oldLoader);
                }
            }
        }
    }
}