Source Code Cross Referenced for DispatchPhase.java in  » Web-Services-AXIS2 » kernal » org » apache » axis2 » engine » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Services AXIS2 » kernal » org.apache.axis2.engine 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one
003:         * or more contributor license agreements. See the NOTICE file
004:         * distributed with this work for additional information
005:         * regarding copyright ownership. The ASF licenses this file
006:         * to you under the Apache License, Version 2.0 (the
007:         * "License"); you may not use this file except in compliance
008:         * with the License. You may obtain a copy of the License at
009:         *
010:         * http://www.apache.org/licenses/LICENSE-2.0
011:         *
012:         * Unless required by applicable law or agreed to in writing,
013:         * software distributed under the License is distributed on an
014:         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015:         * KIND, either express or implied. See the License for the
016:         * specific language governing permissions and limitations
017:         * under the License.
018:         */
019:        package org.apache.axis2.engine;
020:
021:        import org.apache.axis2.AxisFault;
022:        import org.apache.axis2.Constants;
023:        import org.apache.axis2.addressing.AddressingHelper;
024:        import org.apache.axis2.addressing.EndpointReference;
025:        import org.apache.axis2.context.MessageContext;
026:        import org.apache.axis2.context.OperationContext;
027:        import org.apache.axis2.context.ServiceContext;
028:        import org.apache.axis2.context.ServiceGroupContext;
029:        import org.apache.axis2.context.SessionContext;
030:        import org.apache.axis2.context.ConfigurationContext;
031:        import org.apache.axis2.description.AxisOperation;
032:        import org.apache.axis2.description.AxisService;
033:        import org.apache.axis2.description.AxisServiceGroup;
034:        import org.apache.axis2.i18n.Messages;
035:        import org.apache.axis2.transport.RequestResponseTransport;
036:        import org.apache.axis2.transport.TransportListener;
037:        import org.apache.axis2.transport.http.HTTPConstants;
038:        import org.apache.axis2.util.JavaUtils;
039:        import org.apache.axis2.wsdl.WSDLConstants.WSDL20_2004_Constants;
040:        import org.apache.axis2.wsdl.WSDLConstants.WSDL20_2006Constants;
041:        import org.apache.axiom.om.OMElement;
042:        import org.apache.axiom.soap.SOAPHeader;
043:
044:        import javax.xml.namespace.QName;
045:        import java.util.ArrayList;
046:        import java.util.Iterator;
047:        import java.util.List;
048:
049:        public class DispatchPhase extends Phase {
050:
051:            public DispatchPhase() {
052:            }
053:
054:            public DispatchPhase(String phaseName) {
055:                super (phaseName);
056:            }
057:
058:            public void checkPostConditions(MessageContext msgContext)
059:                    throws AxisFault {
060:                EndpointReference toEPR = msgContext.getTo();
061:
062:                if (msgContext.getAxisService() == null) {
063:                    AxisFault fault = new AxisFault(Messages.getMessage(
064:                            "servicenotfoundforepr", ((toEPR != null) ? toEPR
065:                                    .getAddress() : "")));
066:                    fault
067:                            .setFaultCode(org.apache.axis2.namespace.Constants.FAULT_CLIENT);
068:                    throw fault;
069:                }
070:
071:                AxisService service = msgContext.getAxisService();
072:                AxisOperation operation = msgContext.getAxisOperation();
073:                // If we're configured to do so, check the service for a single op...
074:                if (operation == null
075:                        && JavaUtils
076:                                .isTrue(service
077:                                        .getParameterValue(AxisService.SUPPORT_SINGLE_OP))) {
078:                    Iterator ops = service.getOperations();
079:                    // If there's exactly one, that's the one we want.  If there's more, forget it.
080:                    if (ops.hasNext()) {
081:                        operation = (AxisOperation) ops.next();
082:                        if (ops.hasNext()) {
083:                            operation = null;
084:                        }
085:                    }
086:                    msgContext.setAxisOperation(operation);
087:                }
088:
089:                // If we still don't have an operation, fault.
090:                if (operation == null) {
091:                    AxisFault fault = new AxisFault(Messages.getMessage(
092:                            "operationnotfoundforepr", ((toEPR != null) ? toEPR
093:                                    .getAddress() : ""), msgContext
094:                                    .getWSAAction()));
095:                    fault
096:                            .setFaultCode(org.apache.axis2.namespace.Constants.FAULT_CLIENT);
097:                    throw fault;
098:                }
099:
100:                validateTransport(msgContext);
101:
102:                loadContexts(service, msgContext);
103:
104:                if (msgContext.getOperationContext() == null) {
105:                    throw new AxisFault(Messages
106:                            .getMessage("cannotBeNullOperationContext"));
107:                }
108:
109:                if (msgContext.getServiceContext() == null) {
110:                    throw new AxisFault(Messages
111:                            .getMessage("cannotBeNullServiceContext"));
112:                }
113:
114:                // TODO - review this
115:                if ((msgContext.getAxisOperation() == null)
116:                        && (msgContext.getOperationContext() != null)) {
117:                    msgContext.setAxisOperation(msgContext
118:                            .getOperationContext().getAxisOperation());
119:                }
120:
121:                if ((msgContext.getAxisService() == null)
122:                        && (msgContext.getServiceContext() != null)) {
123:                    msgContext.setAxisService(msgContext.getServiceContext()
124:                            .getAxisService());
125:                }
126:
127:                // We should send an early ack to the transport whever possible, but some modules need
128:                // to use the backchannel, so we need to check if they have disabled this code.
129:                Boolean disableAck = (Boolean) msgContext
130:                        .getProperty(Constants.Configuration.DISABLE_RESPONSE_ACK);
131:                if (disableAck == null || disableAck.booleanValue() == false) {
132:                    String mepString = msgContext.getAxisOperation()
133:                            .getMessageExchangePattern();
134:                    if (mepString.equals(WSDL20_2006Constants.MEP_URI_IN_ONLY)
135:                            || mepString
136:                                    .equals(WSDL20_2004_Constants.MEP_URI_IN_ONLY)) {
137:                        Object requestResponseTransport = msgContext
138:                                .getProperty(RequestResponseTransport.TRANSPORT_CONTROL);
139:                        if (requestResponseTransport != null) {
140:                            ((RequestResponseTransport) requestResponseTransport)
141:                                    .acknowledgeMessage(msgContext);
142:                        }
143:                    } else if (mepString
144:                            .equals(WSDL20_2006Constants.MEP_URI_IN_OUT)
145:                            || mepString
146:                                    .equals(WSDL20_2004_Constants.MEP_URI_IN_OUT)) { // OR, if 2 way operation but the response is intended to not use the response channel of a 2-way transport
147:                        // then we don't need to keep the transport waiting.
148:                        Object requestResponseTransport = msgContext
149:                                .getProperty(RequestResponseTransport.TRANSPORT_CONTROL);
150:                        if (requestResponseTransport != null) {
151:                            if (AddressingHelper.isReplyRedirected(msgContext)
152:                                    && AddressingHelper
153:                                            .isFaultRedirected(msgContext)) {
154:                                ((RequestResponseTransport) requestResponseTransport)
155:                                        .acknowledgeMessage(msgContext);
156:                            }
157:                        }
158:                    }
159:                }
160:
161:                ArrayList operationChain = msgContext.getAxisOperation()
162:                        .getRemainingPhasesInFlow();
163:                msgContext
164:                        .setExecutionChain((ArrayList) operationChain.clone());
165:            }
166:
167:            private void loadContexts(AxisService service,
168:                    MessageContext msgContext) throws AxisFault {
169:                String scope = service == null ? null : service.getScope();
170:                ServiceContext serviceContext = msgContext.getServiceContext();
171:
172:                if ((msgContext.getOperationContext() != null)
173:                        && (serviceContext != null)) {
174:                    msgContext
175:                            .setServiceGroupContextId(((ServiceGroupContext) serviceContext
176:                                    .getParent()).getId());
177:                    return;
178:                }
179:                if (Constants.SCOPE_TRANSPORT_SESSION.equals(scope)) {
180:                    fillContextsFromSessionContext(msgContext);
181:                } else if (Constants.SCOPE_SOAP_SESSION.equals(scope)) {
182:                    extractServiceGroupContextId(msgContext);
183:                }
184:
185:                AxisOperation axisOperation = msgContext.getAxisOperation();
186:                //        if (axisOperation == null) {
187:                //            return;
188:                //        }
189:                OperationContext operationContext = axisOperation
190:                        .findForExistingOperationContext(msgContext);
191:
192:                if (operationContext != null) {
193:                    // register operation context and message context
194:                    //            axisOperation.registerOperationContext(msgContext, operationContext);
195:                    axisOperation.registerMessageContext(msgContext,
196:                            operationContext);
197:
198:                    serviceContext = (ServiceContext) operationContext
199:                            .getParent();
200:                    ServiceGroupContext serviceGroupContext = (ServiceGroupContext) serviceContext
201:                            .getParent();
202:
203:                    msgContext.setServiceContext(serviceContext);
204:                    msgContext.setServiceGroupContext(serviceGroupContext);
205:                    msgContext.setServiceGroupContextId(serviceGroupContext
206:                            .getId());
207:                } else { // 2. if null, create new opCtxt
208:                    if (serviceContext == null) {
209:                        // fill the service group context and service context info
210:                        msgContext.getConfigurationContext()
211:                                .fillServiceContextAndServiceGroupContext(
212:                                        msgContext);
213:                        serviceContext = msgContext.getServiceContext();
214:                    }
215:                    operationContext = serviceContext
216:                            .createOperationContext(axisOperation);
217:                    axisOperation.registerMessageContext(msgContext,
218:                            operationContext);
219:                }
220:
221:                serviceContext.setMyEPR(msgContext.getTo());
222:            }
223:
224:            /**
225:             * To check wether the incoming request has come in valid transport , simpley the transports
226:             * that service author wants to expose
227:             *
228:             * @param msgctx the current MessageContext
229:             * @throws AxisFault in case of error
230:             */
231:            private void validateTransport(MessageContext msgctx)
232:                    throws AxisFault {
233:                AxisService service = msgctx.getAxisService();
234:                if (service.isEnableAllTransports()) {
235:                    return;
236:                } else {
237:                    List trs = service.getExposedTransports();
238:                    String incommingTrs = msgctx.getIncomingTransportName();
239:                    for (int i = 0; i < trs.size(); i++) {
240:                        String tr = (String) trs.get(i);
241:                        if (incommingTrs != null && incommingTrs.equals(tr)) {
242:                            return;
243:                        }
244:                    }
245:                }
246:                EndpointReference toEPR = msgctx.getTo();
247:                throw new AxisFault(Messages.getMessage(
248:                        "servicenotfoundforepr", ((toEPR != null) ? toEPR
249:                                .getAddress() : "")));
250:            }
251:
252:            private void fillContextsFromSessionContext(
253:                    MessageContext msgContext) throws AxisFault {
254:                AxisService service = msgContext.getAxisService();
255:                if (service == null) {
256:                    throw new AxisFault(Messages
257:                            .getMessage("unabletofindservice"));
258:                }
259:                SessionContext sessionContext = msgContext.getSessionContext();
260:                if (sessionContext == null) {
261:                    TransportListener listener = msgContext.getTransportIn()
262:                            .getReceiver();
263:                    sessionContext = listener.getSessionContext(msgContext);
264:                    if (sessionContext == null) {
265:                        createAndFillContexts(service, msgContext,
266:                                sessionContext);
267:                        return;
268:                    }
269:                }
270:                String serviceGroupName = msgContext.getAxisServiceGroup()
271:                        .getServiceGroupName();
272:                ServiceGroupContext serviceGroupContext = sessionContext
273:                        .getServiceGroupContext(serviceGroupName);
274:                if (serviceGroupContext != null) {
275:                    //setting service group context
276:                    msgContext.setServiceGroupContext(serviceGroupContext);
277:                    // setting Service context
278:                    msgContext.setServiceContext(serviceGroupContext
279:                            .getServiceContext(service));
280:                } else {
281:                    createAndFillContexts(service, msgContext, sessionContext);
282:                }
283:                ServiceContext serviceContext = sessionContext
284:                        .getServiceContext(service);
285:                //found the serviceContext from session context , so adding that into msgContext
286:                if (serviceContext != null) {
287:                    msgContext.setServiceContext(serviceContext);
288:                    serviceContext.setProperty(HTTPConstants.COOKIE_STRING,
289:                            sessionContext.getCookieID());
290:                }
291:            }
292:
293:            private void createAndFillContexts(AxisService service,
294:                    MessageContext msgContext, SessionContext sessionContext)
295:                    throws AxisFault {
296:                ServiceGroupContext serviceGroupContext;
297:                AxisServiceGroup axisServiceGroup = service
298:                        .getAxisServiceGroup();
299:                ConfigurationContext configCtx = msgContext
300:                        .getConfigurationContext();
301:                serviceGroupContext = configCtx
302:                        .createServiceGroupContext(axisServiceGroup);
303:
304:                msgContext.setServiceGroupContext(serviceGroupContext);
305:                ServiceContext serviceContext = serviceGroupContext
306:                        .getServiceContext(service);
307:                msgContext.setServiceContext(serviceContext);
308:                if (sessionContext != null) {
309:                    sessionContext.addServiceContext(serviceContext);
310:                    sessionContext.addServiceGroupContext(serviceGroupContext);
311:                }
312:            }
313:
314:            private static final QName SERVICE_GROUP_QNAME = new QName(
315:                    Constants.AXIS2_NAMESPACE_URI, Constants.SERVICE_GROUP_ID,
316:                    Constants.AXIS2_NAMESPACE_PREFIX);
317:
318:            private void extractServiceGroupContextId(MessageContext msgContext)
319:                    throws AxisFault {
320:                SOAPHeader soapHeader = msgContext.getEnvelope().getHeader();
321:                if (soapHeader != null) {
322:                    OMElement serviceGroupId = soapHeader
323:                            .getFirstChildWithName(SERVICE_GROUP_QNAME);
324:                    if (serviceGroupId != null) {
325:                        msgContext.setServiceGroupContextId(serviceGroupId
326:                                .getText());
327:                    }
328:                }
329:            }
330:
331:        }
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