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 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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package com.sun.xml.ws.client.sei;

//import com.sun.tools.ws.wsdl.document.soap.SOAPBinding;

import com.sun.istack.NotNull;
import com.sun.istack.Nullable;
import com.sun.xml.ws.api.message.Message;
import com.sun.xml.ws.api.message.Packet;
import com.sun.xml.ws.api.pipe.Fiber;
import com.sun.xml.ws.client.AsyncInvoker;
import com.sun.xml.ws.client.AsyncResponseImpl;
import com.sun.xml.ws.client.RequestContext;
import com.sun.xml.ws.client.ResponseContext;
import com.sun.xml.ws.fault.SOAPFaultBuilder;
import com.sun.xml.ws.model.JavaMethodImpl;
import com.sun.xml.ws.model.ParameterImpl;
import com.sun.xml.ws.model.WrapperParameter;

import javax.jws.soap.SOAPBinding.Style;
import javax.xml.ws.AsyncHandler;
import javax.xml.ws.Response;
import javax.xml.ws.WebServiceException;
import java.util.List;

/**
 * Common part between {@link CallbackMethodHandler} and {@link PollingMethodHandler}.
 *
 * @author Kohsuke Kawaguchi
 * @author Jitendra Kotamraju
 */
abstract class AsyncMethodHandler extends SEIMethodHandler {

    private final ResponseBuilder responseBuilder;
    /**
     * Async bean class that has setters for all out parameters
     */
    private final @Nullable Class asyncBeanClass;

    AsyncMethodHandler(SEIStub owner, JavaMethodImpl jm, JavaMethodImpl sync) {
        super(owner, sync);

        List rp = sync.getResponseParameters();
        int size = 0;
        for( ParameterImpl param : rp ) {
            if (param.isWrapperStyle()) {
                WrapperParameter wrapParam = (WrapperParameter)param;
                size += wrapParam.getWrapperChildren().size();
                if (sync.getBinding().getStyle() == Style.DOCUMENT) {
                    // doc/asyncBeanClass - asyncBeanClass bean is in async signature
                    // Add 2 or more so that it is considered as async bean case
                    size += 2;
                }
            } else {
                ++size;
            }
        }

        Class tempWrap = null;
        if (size > 1) {
            rp = jm.getResponseParameters();
            for(ParameterImpl param : rp) {
                if (param.isWrapperStyle()) {
                    WrapperParameter wrapParam = (WrapperParameter)param;
                    if (sync.getBinding().getStyle() == Style.DOCUMENT) {
                        // doc/asyncBeanClass style
                        tempWrap = (Class)wrapParam.getTypeReference().type;
                        break;
                    }
                    for(ParameterImpl p : wrapParam.getWrapperChildren()) {
                        if (p.getIndex() == -1) {
                            tempWrap = (Class)p.getTypeReference().type;
                            break;
                        }
                    }
                    if (tempWrap != null) {
                        break;
                    }
                } else {
                    if (param.getIndex() == -1) {
                        tempWrap = (Class)param.getTypeReference().type;
                        break;
                    }
                }
            }
        }
        asyncBeanClass = tempWrap;
        
        switch(size) {
            case 0 :
                responseBuilder = buildResponseBuilder(sync, ValueSetterFactory.NONE);
                break;
            case 1 :
                responseBuilder = buildResponseBuilder(sync, ValueSetterFactory.SINGLE);
                break;
            default :
                responseBuilder = buildResponseBuilder(sync, new ValueSetterFactory.AsyncBeanValueSetterFactory(asyncBeanClass));
        }
       
    }

    protected final Response doInvoke(Object proxy, Object[] args, AsyncHandler handler) {
        
        AsyncInvoker invoker = new SEIAsyncInvoker(proxy, args);
        AsyncResponseImpl ft = new AsyncResponseImpl(invoker,handler);
        invoker.setReceiver(ft);
        // TODO: Do we set this executor on Engine and run the AsyncInvoker in this thread ?
        owner.getExecutor().execute(ft);
        return ft;
    }

    private class SEIAsyncInvoker extends AsyncInvoker {
        // snapshot the context now. this is necessary to avoid concurrency issue,
        // and is required by the spec
        private final RequestContext rc = owner.requestContext.copy();
        private final Object[] args;

        SEIAsyncInvoker(Object proxy, Object[] args) {
            this.args = args;
        }

        public void do_run () {
            Packet req = new Packet(createRequestMessage(args));
            req.soapAction = soapAction;
            req.expectReply = !isOneWay;
            req.getMessage().assertOneWay(isOneWay);

            Fiber.CompletionCallback callback = new Fiber.CompletionCallback() {

                public void onCompletion(@NotNull Packet response) {
                    responseImpl.setResponseContext(new ResponseContext(response));
                    Message msg = response.getMessage();
                    if (msg == null) {
                        return;
                    }
                    try {
                        if(msg.isFault()) {
                            SOAPFaultBuilder faultBuilder = SOAPFaultBuilder.create(msg);
                            throw faultBuilder.createException(checkedExceptions);
                        } else {
                            Object[] rargs = new Object[1];
                            if (asyncBeanClass != null) {
                                rargs[0] = asyncBeanClass.newInstance();
                            }
                            responseBuilder.readResponse(msg, rargs);
                            responseImpl.set(rargs[0], null);
                        }
                   } catch (Throwable t) {
                        if (t instanceof RuntimeException) {
                            if (t instanceof WebServiceException) {
                                responseImpl.set(null, t);
                                return;
                            }
                        }  else if (t instanceof Exception) {
                            responseImpl.set(null, t);
                            return;
                        }
                        //its RuntimeException or some other exception resulting from user error, wrap it in
                        // WebServiceException
                        responseImpl.set(null, new WebServiceException(t));
                    }
                }
                

                public void onCompletion(@NotNull Throwable error) {
                    if (error instanceof WebServiceException) {
                        responseImpl.set(null, error);
                    } else {
                        //its RuntimeException or some other exception resulting from user error, wrap it in
                        // WebServiceException
                        responseImpl.set(null, new WebServiceException(error));
                    }
                }
            };
            owner.doProcessAsync(req, rc, callback);
        }
    }

    ValueGetterFactory getValueGetterFactory() {
        return ValueGetterFactory.ASYNC;
    }

}
    

    

    
            
    
            







    
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