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Java example source code file (ProviderImpl.java)

This example Java source code file (ProviderImpl.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

class, dom, endpoint, endpointimpl, jaxbcontext, list, network, object, providerimpl, qname, sax, security, string, url, util, w3cendpointreference, webserviceexception, webservicefeature, wsservicedelegate, xml

The ProviderImpl.java Java example source code

/*
 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.xml.internal.ws.spi;


import com.sun.xml.internal.ws.api.BindingID;
import com.sun.xml.internal.ws.api.WSService;
import com.sun.xml.internal.ws.api.ServiceSharedFeatureMarker;
import com.sun.xml.internal.ws.api.addressing.AddressingVersion;
import com.sun.xml.internal.ws.api.addressing.WSEndpointReference;
import com.sun.xml.internal.ws.api.model.wsdl.WSDLModel;
import com.sun.xml.internal.ws.api.model.wsdl.WSDLPort;
import com.sun.xml.internal.ws.api.model.wsdl.WSDLService;
import com.sun.xml.internal.ws.api.server.BoundEndpoint;
import com.sun.xml.internal.ws.api.server.Container;
import com.sun.xml.internal.ws.api.server.ContainerResolver;
import com.sun.xml.internal.ws.api.server.Module;
import com.sun.xml.internal.ws.api.server.WSEndpoint;
import com.sun.xml.internal.ws.api.wsdl.parser.WSDLParserExtension;
import com.sun.xml.internal.ws.client.WSServiceDelegate;
import com.sun.xml.internal.ws.developer.MemberSubmissionEndpointReference;
import com.sun.xml.internal.ws.resources.ProviderApiMessages;
import com.sun.xml.internal.ws.transport.http.server.EndpointImpl;
import com.sun.xml.internal.ws.util.ServiceFinder;
import com.sun.xml.internal.ws.util.xml.XmlUtil;
import com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser;

import org.w3c.dom.Element;
import org.xml.sax.EntityResolver;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import javax.xml.namespace.QName;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.ws.Endpoint;
import javax.xml.ws.EndpointReference;
import javax.xml.ws.Service;
import javax.xml.ws.WebServiceException;
import javax.xml.ws.WebServiceFeature;
import javax.xml.ws.spi.Provider;
import javax.xml.ws.spi.ServiceDelegate;
import javax.xml.ws.spi.Invoker;
import javax.xml.ws.wsaddressing.W3CEndpointReference;

import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.List;
import java.util.Map;

/**
 * The entry point to the JAX-WS RI from the JAX-WS API.
 *
 * @author WS Development Team
 */
public class ProviderImpl extends Provider {

    private final static JAXBContext eprjc = getEPRJaxbContext();

    /**
     * Convenient singleton instance.
     */
    public static final ProviderImpl INSTANCE = new ProviderImpl();

    @Override
    public Endpoint createEndpoint(String bindingId, Object implementor) {
        return new EndpointImpl(
            (bindingId != null) ? BindingID.parse(bindingId) : BindingID.parse(implementor.getClass()),
            implementor);
    }

    @Override
    public ServiceDelegate createServiceDelegate( URL wsdlDocumentLocation, QName serviceName, Class serviceClass) {
         return new WSServiceDelegate(wsdlDocumentLocation, serviceName, serviceClass);
    }

    public ServiceDelegate createServiceDelegate( URL wsdlDocumentLocation, QName serviceName, Class serviceClass,
                                                  WebServiceFeature ... features) {
        for (WebServiceFeature feature : features) {
            if (!(feature instanceof ServiceSharedFeatureMarker))
            throw new WebServiceException("Doesn't support any Service specific features");
        }
        return new WSServiceDelegate(wsdlDocumentLocation, serviceName, serviceClass, features);
    }

    public ServiceDelegate createServiceDelegate( Source wsdlSource, QName serviceName, Class serviceClass) {
        return new WSServiceDelegate(wsdlSource, serviceName, serviceClass);
   }

    @Override
    public Endpoint createAndPublishEndpoint(String address,
                                             Object implementor) {
        Endpoint endpoint = new EndpointImpl(
            BindingID.parse(implementor.getClass()),
            implementor);
        endpoint.publish(address);
        return endpoint;
    }

    public Endpoint createEndpoint(String bindingId, Object implementor, WebServiceFeature... features) {
        return new EndpointImpl(
            (bindingId != null) ? BindingID.parse(bindingId) : BindingID.parse(implementor.getClass()),
            implementor, features);
    }

    public Endpoint createAndPublishEndpoint(String address, Object implementor, WebServiceFeature... features) {
        Endpoint endpoint = new EndpointImpl(
            BindingID.parse(implementor.getClass()), implementor, features);
        endpoint.publish(address);
        return endpoint;
    }

    public Endpoint createEndpoint(String bindingId, Class implementorClass, Invoker invoker, WebServiceFeature... features) {
        return new EndpointImpl(
            (bindingId != null) ? BindingID.parse(bindingId) : BindingID.parse(implementorClass),
            implementorClass, invoker, features);
    }

    public EndpointReference readEndpointReference(final Source eprInfoset) {
        // EPR constructors are private, so we need privilege escalation.
        // this unmarshalling can only access instances of a fixed, known set of classes,
        // so doing that shouldn't introduce security vulnerability.
        return AccessController.doPrivileged(new PrivilegedAction<EndpointReference>() {
            public EndpointReference run() {
                try {
                    Unmarshaller unmarshaller = eprjc.createUnmarshaller();
                    return (EndpointReference) unmarshaller.unmarshal(eprInfoset);
                } catch (JAXBException e) {
                    throw new WebServiceException("Error creating Marshaller or marshalling.", e);
                }
            }
        });
    }

    public <T> T getPort(EndpointReference endpointReference, Class clazz, WebServiceFeature... webServiceFeatures) {
        /*
        final @NotNull MemberSubmissionEndpointReference msepr =
                EndpointReferenceUtil.transform(MemberSubmissionEndpointReference.class, endpointReference);
                WSService service = new WSServiceDelegate(msepr.toWSDLSource(), msepr.serviceName.name, Service.class);
                */
        if(endpointReference == null)
            throw new WebServiceException(ProviderApiMessages.NULL_EPR());
        WSEndpointReference wsepr =  new WSEndpointReference(endpointReference);
        WSEndpointReference.Metadata metadata = wsepr.getMetaData();
        WSService service;
        if(metadata.getWsdlSource() != null)
            service = (WSService) createServiceDelegate(metadata.getWsdlSource(), metadata.getServiceName(), Service.class);
        else
            throw new WebServiceException("WSDL metadata is missing in EPR");
        return service.getPort(wsepr, clazz, webServiceFeatures);
    }

    public W3CEndpointReference createW3CEndpointReference(String address, QName serviceName, QName portName, List<Element> metadata, String wsdlDocumentLocation, List referenceParameters) {
        return createW3CEndpointReference(address, null, serviceName, portName, metadata, wsdlDocumentLocation, referenceParameters, null, null);
    }

    public W3CEndpointReference createW3CEndpointReference(String address, QName interfaceName, QName serviceName, QName portName,
            List<Element> metadata, String wsdlDocumentLocation, List referenceParameters,
            List<Element> elements, Map attributes) {
        Container container = ContainerResolver.getInstance().getContainer();
        if (address == null) {
            if (serviceName == null || portName == null) {
                throw new IllegalStateException(ProviderApiMessages.NULL_ADDRESS_SERVICE_ENDPOINT());
            } else {
                //check if it is run in a Java EE Container and if so, get address using serviceName and portName
                Module module = container.getSPI(Module.class);
                if (module != null) {
                    List<BoundEndpoint> beList = module.getBoundEndpoints();
                    for (BoundEndpoint be : beList) {
                        WSEndpoint wse = be.getEndpoint();
                        if (wse.getServiceName().equals(serviceName) && wse.getPortName().equals(portName)) {
                            try {
                                address = be.getAddress().toString();
                            } catch (WebServiceException e) {
                                // May be the container does n't support this
                                //just ignore the exception
                            }
                            break;
                        }
                    }
                }
                //address is still null? may be its not run in a JavaEE Container
                if (address == null)
                    throw new IllegalStateException(ProviderApiMessages.NULL_ADDRESS());
            }
        }
        if((serviceName==null) && (portName != null)) {
            throw new IllegalStateException(ProviderApiMessages.NULL_SERVICE());
        }
        //Validate Service and Port in WSDL
        String wsdlTargetNamespace = null;
        if (wsdlDocumentLocation != null) {
            try {
                EntityResolver er = XmlUtil.createDefaultCatalogResolver();

                URL wsdlLoc = new URL(wsdlDocumentLocation);
                WSDLModel wsdlDoc = RuntimeWSDLParser.parse(wsdlLoc, new StreamSource(wsdlLoc.toExternalForm()), er,
                        true, container, ServiceFinder.find(WSDLParserExtension.class).toArray());
                if (serviceName != null) {
                    WSDLService wsdlService = wsdlDoc.getService(serviceName);
                    if (wsdlService == null)
                        throw new IllegalStateException(ProviderApiMessages.NOTFOUND_SERVICE_IN_WSDL(
                                serviceName,wsdlDocumentLocation));
                    if (portName != null) {
                        WSDLPort wsdlPort = wsdlService.get(portName);
                        if (wsdlPort == null)
                            throw new IllegalStateException(ProviderApiMessages.NOTFOUND_PORT_IN_WSDL(
                                    portName,serviceName,wsdlDocumentLocation));
                    }
                    wsdlTargetNamespace = serviceName.getNamespaceURI();
                } else {
                    QName firstService = wsdlDoc.getFirstServiceName();
                    wsdlTargetNamespace = firstService.getNamespaceURI();
                }
            } catch (Exception e) {
                throw new IllegalStateException(ProviderApiMessages.ERROR_WSDL(wsdlDocumentLocation),e);
            }
        }
        //wcf3.0/3.5 rejected empty metadata element.
        if (metadata != null && metadata.size() == 0) {
           metadata = null;
        }
        return new WSEndpointReference(
            AddressingVersion.fromSpecClass(W3CEndpointReference.class),
            address, serviceName, portName, interfaceName, metadata, wsdlDocumentLocation, wsdlTargetNamespace,referenceParameters, elements, attributes).toSpec(W3CEndpointReference.class);

    }

    private static JAXBContext getEPRJaxbContext() {
        // EPRs have package and private fields, so we need privilege escalation.
        // this access only fixed, known set of classes, so doing that
        // shouldn't introduce security vulnerability.
        return AccessController.doPrivileged(new PrivilegedAction<JAXBContext>() {
            public JAXBContext run() {
                try {
                    return JAXBContext.newInstance(MemberSubmissionEndpointReference.class, W3CEndpointReference.class);
                } catch (JAXBException e) {
                    throw new WebServiceException("Error creating JAXBContext for W3CEndpointReference. ", e);
                }
            }
        });
    }
}

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