Source Code Cross Referenced for AbstractClientBinding.java in  » ESB » celtix-1.0 » org » objectweb » celtix » bindings » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ESB » celtix 1.0 » org.objectweb.celtix.bindings 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package org.objectweb.celtix.bindings;
002:
003:        import java.io.IOException;
004:        import java.io.InputStream;
005:        import java.lang.ref.WeakReference;
006:        import java.util.List;
007:        import java.util.concurrent.Executor;
008:        import java.util.concurrent.Future;
009:        import java.util.logging.Level;
010:        import java.util.logging.Logger;
011:
012:        import javax.wsdl.Port;
013:        import javax.wsdl.WSDLException;
014:        import javax.wsdl.extensions.ExtensibilityElement;
015:        import javax.xml.ws.handler.MessageContext;
016:
017:        import org.objectweb.celtix.Bus;
018:        import org.objectweb.celtix.BusException;
019:        import org.objectweb.celtix.buslifecycle.BusLifeCycleListener;
020:        import org.objectweb.celtix.common.i18n.Message;
021:        import org.objectweb.celtix.common.injection.ResourceInjector;
022:        import org.objectweb.celtix.common.logging.LogUtils;
023:        import org.objectweb.celtix.configuration.Configuration;
024:        import org.objectweb.celtix.context.InputStreamMessageContext;
025:        import org.objectweb.celtix.context.ObjectMessageContext;
026:        import org.objectweb.celtix.context.OutputStreamMessageContext;
027:        import org.objectweb.celtix.handlers.HandlerInvoker;
028:        import org.objectweb.celtix.resource.DefaultResourceManager;
029:        import org.objectweb.celtix.resource.ResourceManager;
030:        import org.objectweb.celtix.resource.ResourceResolver;
031:        import org.objectweb.celtix.transports.ClientTransport;
032:        import org.objectweb.celtix.transports.TransportFactory;
033:        import org.objectweb.celtix.ws.addressing.EndpointReferenceType;
034:        import org.objectweb.celtix.wsdl.EndpointReferenceUtils;
035:
036:        import static org.objectweb.celtix.bindings.JAXWSConstants.BUS_PROPERTY;
037:        import static org.objectweb.celtix.bindings.JAXWSConstants.CLIENT_BINDING_PROPERTY;
038:        import static org.objectweb.celtix.bindings.JAXWSConstants.CLIENT_TRANSPORT_PROPERTY;
039:
040:        public abstract class AbstractClientBinding extends AbstractBindingBase
041:                implements  ClientBinding {
042:            private static final Logger LOG = LogUtils
043:                    .getL7dLogger(AbstractClientBinding.class);
044:
045:            protected Port port;
046:            private ResponseCorrelator responseCorrelator;
047:
048:            public AbstractClientBinding(Bus b, EndpointReferenceType ref)
049:                    throws WSDLException, IOException {
050:                super (b, ref);
051:                bus.getLifeCycleManager().registerLifeCycleListener(
052:                        new ShutdownListener(this ));
053:                transport = null;
054:            }
055:
056:            private class ShutdownListener extends
057:                    WeakReference<AbstractClientBinding> implements 
058:                    BusLifeCycleListener {
059:
060:                ShutdownListener(AbstractClientBinding c) {
061:                    super (c);
062:                }
063:
064:                public void initComplete() {
065:                    // nothing
066:                }
067:
068:                public void preShutdown() {
069:                    if (get() != null) {
070:                        get().shutdown();
071:                        clear();
072:                    }
073:                }
074:
075:                public void postShutdown() {
076:                    clearResponseCorrelator();
077:                }
078:            }
079:
080:            public void clearResponseCorrelator() {
081:                responseCorrelator = null;
082:            }
083:
084:            // --- Methods to be implemented by concrete client bindings ---
085:
086:            public abstract AbstractBindingImpl getBindingImpl();
087:
088:            // --- Methods to be implemented by concrete client bindings ---
089:
090:            // --- BindingBase interface ---
091:
092:            public void configureSystemHandlers(
093:                    Configuration endpointConfiguration) {
094:                super .configureSystemHandlers(endpointConfiguration);
095:
096:                ResourceManager rm = new DefaultResourceManager();
097:                rm.addResourceResolver(new ResourceResolver() {
098:                    @SuppressWarnings("unchecked")
099:                    public <T> T resolve(String resourceName,
100:                            Class<T> resourceType) {
101:                        if (BUS_PROPERTY.equals(resourceName)) {
102:                            return (T) AbstractClientBinding.this .getBus();
103:                        } else if (CLIENT_BINDING_PROPERTY.equals(resourceName)) {
104:                            return (T) AbstractClientBinding.this ;
105:                        } else if (CLIENT_TRANSPORT_PROPERTY
106:                                .equals(resourceName)) {
107:                            try {
108:                                return (T) AbstractClientBinding.this 
109:                                        .getTransport();
110:                            } catch (IOException ex) {
111:                                Message msg = new Message(
112:                                        "SYSTEM_HANDLER_RESOURCE_INJECTION_FAILURE_MSG",
113:                                        LOG, resourceName);
114:                                LOG.log(Level.WARNING, msg.toString(), ex);
115:                            }
116:                        }
117:                        return null;
118:                    }
119:
120:                    public InputStream getAsStream(String name) {
121:                        return null;
122:                    }
123:                });
124:                ResourceInjector injector = new ResourceInjector(rm);
125:                getBindingImpl().injectSystemHandlers(injector);
126:
127:            }
128:
129:            // --- BindingBase interface ---
130:
131:            // --- ClientBinding interface ---
132:
133:            public ObjectMessageContext invoke(ObjectMessageContext objectCtx,
134:                    DataBindingCallback callback) throws IOException {
135:
136:                // storeSource(objectCtx);
137:                BindingContextUtils.storeDataBindingCallback(objectCtx,
138:                        callback);
139:
140:                Request request = new Request(this , getTransport(), objectCtx);
141:
142:                try {
143:                    OutputStreamMessageContext ostreamCtx = request
144:                            .process(null);
145:
146:                    if (null != ostreamCtx) {
147:
148:                        InputStreamMessageContext responseContext = clientTransport()
149:                                .invoke(ostreamCtx);
150:                        Response fullResponse = null;
151:                        if (BindingContextUtils
152:                                .retrieveDecoupledResponse(responseContext)) {
153:                            // partial response traverses complete handler chain first
154:                            Response partialResponse = new Response(request);
155:                            partialResponse.processProtocol(responseContext);
156:                            partialResponse.processLogical(callback);
157:
158:                            if (BindingContextUtils.isOnewayMethod(objectCtx)) {
159:                                // no full response
160:                                objectCtx = partialResponse
161:                                        .getObjectMessageContext();
162:                            } else {
163:                                // wait for decoupled full response and tarverse logical chain 
164:                                // (protocol chain already traversed by ResponseCorrelator)
165:                                fullResponse = getResponseCorrelator()
166:                                        .getResponse(request);
167:                                fullResponse.setObjectMessageContext(objectCtx);
168:                                fullResponse.setHandlerInvoker(request
169:                                        .getHandlerInvoker());
170:                                fullResponse.processLogical(callback);
171:                                objectCtx = fullResponse
172:                                        .getObjectMessageContext();
173:                            }
174:                        } else {
175:                            // synchronous full response
176:                            fullResponse = new Response(request);
177:                            fullResponse.processProtocol(responseContext);
178:                            fullResponse.processLogical(callback);
179:                            objectCtx = fullResponse.getObjectMessageContext();
180:                        }
181:
182:                    }
183:
184:                } finally {
185:                    request.complete();
186:                }
187:
188:                return objectCtx;
189:            }
190:
191:            public void invokeOneWay(ObjectMessageContext objectCtx,
192:                    DataBindingCallback callback) throws IOException {
193:                // storeSource(objectCtx);
194:                BindingContextUtils.storeDataBindingCallback(objectCtx,
195:                        callback);
196:
197:                Request request = new Request(this , getTransport(), objectCtx);
198:                request.setOneway(true);
199:
200:                try {
201:                    OutputStreamMessageContext ostreamCtx = request
202:                            .process(null);
203:
204:                    if (null != ostreamCtx) {
205:                        // one of the (system handlers) may have indicated that it expects 
206:                        // headers to be piggybacked in the response 
207:                        // if this is the case, use the transports invoke rather than invokeOneway
208:                        // to give the handlers a chance to process these headers
209:
210:                        if (BindingContextUtils.isOnewayTransport(ostreamCtx)) {
211:                            clientTransport().invokeOneway(ostreamCtx);
212:                        } else {
213:                            LOG
214:                                    .fine("Sending message as a twoway request as required by system handlers.");
215:                            InputStreamMessageContext istreamCtx = clientTransport()
216:                                    .invoke(ostreamCtx);
217:                            Response response = new Response(request);
218:                            response.processProtocol(istreamCtx);
219:                            response.processLogical(null);
220:                        }
221:                    }
222:
223:                } finally {
224:                    request.complete();
225:                }
226:            }
227:
228:            public Future<ObjectMessageContext> invokeAsync(
229:                    ObjectMessageContext objectCtx,
230:                    DataBindingCallback callback, Executor executor)
231:                    throws IOException {
232:
233:                // storeSource(objectCtx);
234:                BindingContextUtils.storeDataBindingCallback(objectCtx,
235:                        callback);
236:
237:                Request request = new Request(this , getTransport(), objectCtx);
238:                AsyncFuture asyncFuture = null;
239:
240:                try {
241:                    OutputStreamMessageContext ostreamCtx = request
242:                            .process(null);
243:
244:                    if (null != ostreamCtx) {
245:
246:                        Future<InputStreamMessageContext> ins = clientTransport()
247:                                .invokeAsync(ostreamCtx, executor);
248:                        asyncFuture = new AsyncFuture(ins, this , callback,
249:                                request.getHandlerInvoker(), objectCtx);
250:                    }
251:
252:                } finally {
253:                    request.complete();
254:                }
255:
256:                return asyncFuture;
257:            }
258:
259:            public synchronized ResponseCallback createResponseCallback() {
260:                responseCorrelator = new ResponseCorrelator(this );
261:                return responseCorrelator;
262:            }
263:
264:            // --- ClientBinding interface ---
265:
266:            // --- helpers ---
267:
268:            protected synchronized void shutdown() {
269:                if (transport != null) {
270:                    transport.shutdown();
271:                    transport = null;
272:                }
273:            }
274:
275:            public synchronized ClientTransport getTransport()
276:                    throws IOException {
277:                if (transport == null) {
278:                    try {
279:                        transport = createTransport(reference);
280:                    } catch (WSDLException e) {
281:                        throw (IOException) (new IOException(e.getMessage())
282:                                .initCause(e));
283:                    }
284:                }
285:                assert transport != null : "transport is null";
286:                return clientTransport();
287:            }
288:
289:            protected ClientTransport createTransport(EndpointReferenceType ref)
290:                    throws WSDLException, IOException {
291:                ClientTransport ret = null;
292:                try {
293:                    LOG.info("creating client transport for " + ref);
294:
295:                    port = EndpointReferenceUtils.getPort(bus.getWSDLManager(),
296:                            ref);
297:                    List<?> exts = port.getExtensibilityElements();
298:                    if (exts.size() > 0) {
299:                        ExtensibilityElement el = (ExtensibilityElement) exts
300:                                .get(0);
301:
302:                        TransportFactory factory = bus
303:                                .getTransportFactoryManager()
304:                                .getTransportFactory(
305:                                        el.getElementType().getNamespaceURI());
306:                        ret = factory.createClientTransport(ref, this );
307:                    }
308:                } catch (BusException ex) {
309:                    LOG.severe("TRANSPORT_FACTORY_RETREIVAL_FAILURE_MSG");
310:                }
311:                assert ret != null;
312:                return ret;
313:            }
314:
315:            protected ClientTransport clientTransport() {
316:                return (ClientTransport) transport;
317:            }
318:
319:            public synchronized ResponseCorrelator getResponseCorrelator() {
320:                if (responseCorrelator == null) {
321:                    responseCorrelator = (ResponseCorrelator) clientTransport()
322:                            .getResponseCallback();
323:                }
324:                return responseCorrelator;
325:            }
326:
327:            protected void finalPrepareOutputStreamContext(
328:                    MessageContext bindingContext,
329:                    OutputStreamMessageContext ostreamContext)
330:                    throws IOException {
331:                transport.finalPrepareOutputStreamContext(ostreamContext);
332:            }
333:
334:            public ObjectMessageContext getObjectMessageContextAsync(
335:                    InputStreamMessageContext ins,
336:                    HandlerInvoker handlerInvoker,
337:                    DataBindingCallback callback, ObjectMessageContext objectCtx) {
338:                Response response = new Response(this, handlerInvoker);
339:                try {
340:                    response.setObjectMessageContext(objectCtx);
341:                    response.processProtocol(ins);
342:                    response.processLogical(callback);
343:                } finally {
344:                    handlerInvoker.mepComplete(objectCtx);
345:                }
346:
347:                return response.getObjectMessageContext();
348:            }
349:        }
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