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 * obtain a copy of the License at
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package org.glassfish.webservices;

import java.io.IOException;

import java.util.logging.Logger;
import java.util.logging.Level;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.ServletContext;

import com.sun.xml.ws.transport.http.servlet.ServletAdapter;
import java.text.MessageFormat;

/**
 * Implementation of the Ejb Message Dispatcher for EJB3 endpoints.
 *
 * @author Jerome Dochez
 */
public class Ejb3MessageDispatcher implements EjbMessageDispatcher {
    
    private static final Logger logger = LogUtils.getLogger();
    
    private static WsUtil wsUtil = new WsUtil();
    
    @Override
    public void invoke(HttpServletRequest req, 
                       HttpServletResponse resp,
                       ServletContext ctxt,
                       EjbRuntimeEndpointInfo endpointInfo) {
        
        if (logger.isLoggable(Level.FINE)) {
            logger.log(Level.FINE, LogUtils.WEBSERVICE_DISPATCHER_INFO,
                    new Object[] {req.getMethod(), req.getRequestURI(), req.getQueryString()});
        }       
        String method = req.getMethod();
        try {
            switch (method) {
                case "POST":
                    handlePost(req, resp, endpointInfo);
                    break;
                case "GET":
                    handleGet(req, resp, ctxt, endpointInfo);
                    break;
                default:
                    String errorMessage = MessageFormat.format(
                            logger.getResourceBundle().getString(LogUtils.UNSUPPORTED_METHOD_REQUEST),
                            new Object[] {method, endpointInfo.getEndpoint().getEndpointName(),
                                endpointInfo.getEndpointAddressUri()});
                    logger.log(Level.WARNING, errorMessage);
                    wsUtil.writeInvalidMethodType(resp, errorMessage);
                    break;
            }
        } catch(Exception e) {
            logger.log(Level.WARNING, LogUtils.EJB_ENDPOINT_EXCEPTION, e);
        }
    } 
    
    private void handlePost(HttpServletRequest req,
                            HttpServletResponse resp,
                            EjbRuntimeEndpointInfo endpointInfo)
        throws IOException    {
        AdapterInvocationInfo adapterInfo = null;
        ServletAdapter adapter;
        try {            
            try {
                adapterInfo = (AdapterInvocationInfo) endpointInfo.prepareInvocation(true);
                adapter = adapterInfo.getAdapter();
                if (adapter != null) {                    
                    adapter.handle(null, req, resp);
                } else {
                    logger.log(Level.SEVERE, LogUtils.UNABLE_FIND_ADAPTER, endpointInfo.getEndpoint().getName());
                }
            } finally {
                // Always call release, even if an error happened
                // during getImplementor(), since some of the
                // preInvoke steps might have occurred.  It's ok
                // if implementor is null.
                endpointInfo.releaseImplementor((adapterInfo == null) ? null : adapterInfo.getInv());
            }    
        } catch (Throwable e) {
            String errorMessage = MessageFormat.format(
                    logger.getResourceBundle().getString(LogUtils.ERROR_ON_EJB),
                    new Object[] {endpointInfo.getEndpoint().getEndpointName(),
                        endpointInfo.getEndpointAddressUri(), e.getMessage()});
            logger.log(Level.WARNING, errorMessage, e);
            String binding = endpointInfo.getEndpoint().getProtocolBinding();
            WsUtil.raiseException(resp, binding, errorMessage);
        }
    }    
    
    private void handleGet(HttpServletRequest req, 
                           HttpServletResponse resp,
                           ServletContext ctxt,
                           EjbRuntimeEndpointInfo endpointInfo)
                            throws IOException    {
        AdapterInvocationInfo adapterInfo = null;
        ServletAdapter adapter;
        try {
             adapterInfo = (AdapterInvocationInfo) endpointInfo.prepareInvocation(true);
            adapter = adapterInfo.getAdapter();
            if (adapter != null) {
                adapter.publishWSDL(ctxt, req, resp);
            } else {
                String message = "Invalid wsdl request " +  req.getRequestURL();
                (new WsUtil()).writeInvalidMethodType(resp, message);
            }
        } catch (Throwable e) {
            String errorMessage = MessageFormat.format(
                    logger.getResourceBundle().getString(LogUtils.ERROR_ON_EJB),
                    new Object[] {endpointInfo.getEndpoint().getEndpointName(),
                        endpointInfo.getEndpointAddressUri(), e.getMessage()});
            logger.log(Level.WARNING, errorMessage, e);
            String binding = endpointInfo.getEndpoint().getProtocolBinding();
            WsUtil.raiseException(resp, binding, errorMessage);
        } finally {
            endpointInfo.releaseImplementor((adapterInfo == null) ? null : adapterInfo.getInv());        
        }
    }      
}