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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * 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

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

import com.sun.xml.internal.ws.api.WSBinding;

import com.sun.xml.internal.ws.api.databinding.MetadataReader;

import com.sun.xml.internal.ws.api.server.AsyncProvider;

import com.sun.xml.internal.ws.api.streaming.XMLStreamReaderFactory;

import com.sun.xml.internal.ws.handler.HandlerChainsModel;

import com.sun.xml.internal.ws.model.ReflectAnnotationReader;

import com.sun.xml.internal.ws.server.EndpointFactory;

import com.sun.xml.internal.ws.streaming.XMLStreamReaderUtil;

import com.sun.istack.internal.NotNull;

import javax.jws.HandlerChain;

import javax.jws.WebService;

import javax.jws.soap.SOAPMessageHandlers;

import javax.xml.namespace.QName;

import javax.xml.stream.XMLStreamException;

import javax.xml.stream.XMLStreamReader;

import javax.xml.ws.Provider;

import javax.xml.ws.Service;

import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import java.util.logging.Logger;

/**

 * <p>Used by client and server side to create handler information

 * from annotated class. The public methods all return a

 * HandlerChainInfo that contains the handlers and role information

 * needed at runtime.

 *

 * <p>All of the handler chain descriptors follow the same schema,

 * whether they are wsdl customizations, handler files specified

 * by an annotation, or are included in the sun-jaxws.xml file.

 * So this class is used for all handler xml information. The

 * two public entry points are

 * {@link HandlerAnnotationProcessor#buildHandlerInfo}, called

 * when you have an annotated class that points to a file.

 *

 * <p>The methods in the class are static so that it may called

 * from the runtime statically.

 *

 * @see com.sun.xml.internal.ws.util.HandlerAnnotationInfo

 *

 * @author JAX-WS Development Team

 */

public class HandlerAnnotationProcessor {

    private static final Logger logger = Logger.getLogger(

        com.sun.xml.internal.ws.util.Constants.LoggingDomain + ".util");

    /**

     * <p>This method is called by

     * {@link EndpointFactory} when

     * they have an annotated class.

     *

     * <p>If there is no handler chain annotation on the class,

     * this method will return null. Otherwise it will load the

     * class and call the parseHandlerFile method to read the

     * information.

     *

     * @return A HandlerAnnotationInfo object that stores the

     * handlers and roles. Will return null if the class passed

     * in has no handler chain annotation.

     */

    public static HandlerAnnotationInfo buildHandlerInfo(@NotNull

        Class<?> clazz, QName serviceName, QName portName, WSBinding binding) {

        MetadataReader metadataReader = EndpointFactory.getExternalMetadatReader(clazz, binding);

        if (metadataReader == null) {

            metadataReader = new ReflectAnnotationReader();

        }

//        clazz = checkClass(clazz);

        HandlerChain handlerChain = metadataReader.getAnnotation(HandlerChain.class, clazz);

        if (handlerChain == null) {

            clazz = getSEI(clazz, metadataReader);

            if (clazz != null)

            handlerChain = metadataReader.getAnnotation(HandlerChain.class, clazz);

            if (handlerChain == null)

                return null;

        }

        if (clazz.getAnnotation(SOAPMessageHandlers.class) != null) {

            throw new UtilException(

                "util.handler.cannot.combine.soapmessagehandlers");

        }

        InputStream iStream = getFileAsStream(clazz, handlerChain);

        XMLStreamReader reader =

            XMLStreamReaderFactory.create(null,iStream, true);

        XMLStreamReaderUtil.nextElementContent(reader);

        HandlerAnnotationInfo handlerAnnInfo = HandlerChainsModel.parseHandlerFile(reader, clazz.getClassLoader(),

            serviceName, portName, binding);

        try {

            reader.close();

            iStream.close();

        } catch (XMLStreamException e) {

            e.printStackTrace();

            throw new UtilException(e.getMessage());

        } catch (IOException e) {

            e.printStackTrace();

            throw new UtilException(e.getMessage());

        }

        return handlerAnnInfo;

    }

    public static HandlerChainsModel buildHandlerChainsModel(final Class<?> clazz) {

        if(clazz == null) {

            return null;

        }

        HandlerChain handlerChain =

            clazz.getAnnotation(HandlerChain.class);

        if(handlerChain == null)

            return null;

        InputStream iStream = getFileAsStream(clazz, handlerChain);

        XMLStreamReader reader =

            XMLStreamReaderFactory.create(null,iStream, true);

        XMLStreamReaderUtil.nextElementContent(reader);

        HandlerChainsModel handlerChainsModel = HandlerChainsModel.parseHandlerConfigFile(clazz, reader);

        try {

            reader.close();

            iStream.close();

        } catch (XMLStreamException e) {

            e.printStackTrace();

            throw new UtilException(e.getMessage());

        } catch (IOException e) {

            e.printStackTrace();

            throw new UtilException(e.getMessage());

        }

        return handlerChainsModel;

    }

    static Class getClass(String className) {

        try {

            return Thread.currentThread().getContextClassLoader().loadClass(

                className);

        } catch (ClassNotFoundException e) {

            throw new UtilException("util.handler.class.not.found",

                className);

        }

    }

    static Class getSEI(Class<?> clazz, MetadataReader metadataReader) {

        if (metadataReader == null) {

            metadataReader = new ReflectAnnotationReader();

        }

        if (Provider.class.isAssignableFrom(clazz) || AsyncProvider.class.isAssignableFrom(clazz)) {

            //No SEI for Provider Implementation

            return null;

        }

        if (Service.class.isAssignableFrom(clazz)) {

            //No SEI for Service class

            return null;

        }

        WebService webService = metadataReader.getAnnotation(WebService.class, clazz);

        if (webService == null) {

            throw new UtilException("util.handler.no.webservice.annotation", clazz.getCanonicalName());

        }

        String ei = webService.endpointInterface();

        if (ei.length() > 0) {

            clazz = getClass(webService.endpointInterface());

            WebService ws = metadataReader.getAnnotation(WebService.class, clazz);

            if (ws == null) {

                throw new UtilException("util.handler.endpoint.interface.no.webservice",

                    webService.endpointInterface());

            }

            return clazz;

        }

        return null;

    }

        if (url == null) {

            throw new UtilException("util.failed.to.find.handlerchain.file",

        }

        try {

            return url.openStream();

        } catch (IOException e) {

            throw new UtilException("util.failed.to.parse.handlerchain.file",

        }

    }

}