Source Code Cross Referenced for StatelessContainer.java in  » J2EE » openejb3 » org » apache » openejb » core » stateless » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » openejb3 » org.apache.openejb.core.stateless 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         *
009:         *     http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */package org.apache.openejb.core.stateless;
017:
018:        import java.lang.reflect.Method;
019:        import java.util.ArrayList;
020:        import java.util.HashMap;
021:        import java.util.List;
022:        import java.util.Map;
023:
024:        import javax.ejb.EJBAccessException;
025:        import javax.ejb.EJBHome;
026:        import javax.ejb.EJBLocalHome;
027:        import javax.ejb.EJBLocalObject;
028:        import javax.ejb.EJBObject;
029:        import javax.interceptor.AroundInvoke;
030:        import javax.transaction.TransactionManager;
031:
032:        import org.apache.openejb.ContainerType;
033:        import org.apache.openejb.DeploymentInfo;
034:        import org.apache.openejb.OpenEJBException;
035:        import org.apache.openejb.ProxyInfo;
036:        import org.apache.openejb.InterfaceType;
037:        import org.apache.openejb.core.CoreDeploymentInfo;
038:        import org.apache.openejb.core.Operation;
039:        import org.apache.openejb.core.ThreadContext;
040:        import org.apache.openejb.core.ExceptionType;
041:        import org.apache.openejb.core.interceptor.InterceptorData;
042:        import org.apache.openejb.core.interceptor.InterceptorStack;
043:        import org.apache.openejb.core.timer.EjbTimerService;
044:        import org.apache.openejb.core.transaction.TransactionContainer;
045:        import org.apache.openejb.core.transaction.TransactionContext;
046:        import org.apache.openejb.core.transaction.TransactionPolicy;
047:        import org.apache.openejb.spi.SecurityService;
048:        import org.apache.xbean.finder.ClassFinder;
049:
050:        /**
051:         * @org.apache.xbean.XBean element="statelessContainer"
052:         */
053:        public class StatelessContainer implements 
054:                org.apache.openejb.RpcContainer, TransactionContainer {
055:
056:            private StatelessInstanceManager instanceManager;
057:
058:            private HashMap<String, DeploymentInfo> deploymentRegistry = new HashMap<String, DeploymentInfo>();
059:
060:            private Object containerID = null;
061:            private TransactionManager transactionManager;
062:            private SecurityService securityService;
063:
064:            public StatelessContainer(Object id,
065:                    TransactionManager transactionManager,
066:                    SecurityService securityService, int timeOut, int poolSize,
067:                    boolean strictPooling) throws OpenEJBException {
068:                this .containerID = id;
069:                this .transactionManager = transactionManager;
070:                this .securityService = securityService;
071:
072:                instanceManager = new StatelessInstanceManager(
073:                        transactionManager, securityService, timeOut, poolSize,
074:                        strictPooling);
075:
076:                for (DeploymentInfo deploymentInfo : deploymentRegistry
077:                        .values()) {
078:                    org.apache.openejb.core.CoreDeploymentInfo di = (org.apache.openejb.core.CoreDeploymentInfo) deploymentInfo;
079:                    di.setContainer(this );
080:                }
081:            }
082:
083:            public synchronized DeploymentInfo[] deployments() {
084:                return deploymentRegistry.values().toArray(
085:                        new DeploymentInfo[deploymentRegistry.size()]);
086:            }
087:
088:            public synchronized DeploymentInfo getDeploymentInfo(
089:                    Object deploymentID) {
090:                String id = (String) deploymentID;
091:                return deploymentRegistry.get(id);
092:            }
093:
094:            public ContainerType getContainerType() {
095:                return ContainerType.STATELESS;
096:            }
097:
098:            public Object getContainerID() {
099:                return containerID;
100:            }
101:
102:            public void deploy(DeploymentInfo info) throws OpenEJBException {
103:                CoreDeploymentInfo deploymentInfo = (CoreDeploymentInfo) info;
104:                instanceManager.deploy(deploymentInfo);
105:                String id = (String) deploymentInfo.getDeploymentID();
106:                synchronized (this ) {
107:                    deploymentRegistry.put(id, deploymentInfo);
108:                    deploymentInfo.setContainer(this );
109:                }
110:
111:                EjbTimerService timerService = deploymentInfo
112:                        .getEjbTimerService();
113:                if (timerService != null) {
114:                    timerService.start();
115:                }
116:            }
117:
118:            public void undeploy(DeploymentInfo info) {
119:                undeploy((CoreDeploymentInfo) info);
120:            }
121:
122:            private void undeploy(CoreDeploymentInfo deploymentInfo) {
123:                instanceManager.undeploy(deploymentInfo);
124:                EjbTimerService timerService = deploymentInfo
125:                        .getEjbTimerService();
126:                if (timerService != null) {
127:                    timerService.stop();
128:                }
129:
130:                synchronized (this ) {
131:                    String id = (String) deploymentInfo.getDeploymentID();
132:                    deploymentInfo.setContainer(null);
133:                    deploymentInfo.setContainerData(null);
134:                    deploymentRegistry.remove(id);
135:                }
136:            }
137:
138:            /**
139:             * @deprecated use invoke signature without 'securityIdentity' argument.
140:             */
141:            public Object invoke(Object deployID, Method callMethod,
142:                    Object[] args, Object primKey, Object securityIdentity)
143:                    throws OpenEJBException {
144:                return invoke(deployID, callMethod.getDeclaringClass(),
145:                        callMethod, args, primKey);
146:            }
147:
148:            public Object invoke(Object deployID, Class callInterface,
149:                    Method callMethod, Object[] args, Object primKey)
150:                    throws OpenEJBException {
151:                CoreDeploymentInfo deployInfo = (CoreDeploymentInfo) this 
152:                        .getDeploymentInfo(deployID);
153:                if (deployInfo == null)
154:                    throw new OpenEJBException(
155:                            "Deployment does not exist in this container. Deployment(id='"
156:                                    + deployID + "'), Container(id='"
157:                                    + containerID + "')");
158:
159:                ThreadContext callContext = new ThreadContext(deployInfo,
160:                        primKey);
161:                ThreadContext oldCallContext = ThreadContext.enter(callContext);
162:                try {
163:                    boolean authorized = getSecurityService()
164:                            .isCallerAuthorized(callMethod,
165:                                    deployInfo.getInterfaceType(callInterface));
166:                    if (!authorized)
167:                        throw new org.apache.openejb.ApplicationException(
168:                                new EJBAccessException(
169:                                        "Unauthorized Access by Principal Denied"));
170:
171:                    Class declaringClass = callMethod.getDeclaringClass();
172:                    if (EJBHome.class.isAssignableFrom(declaringClass)
173:                            || EJBLocalHome.class
174:                                    .isAssignableFrom(declaringClass)) {
175:                        if (callMethod.getName().startsWith("create")) {
176:                            return createEJBObject(deployInfo, callMethod);
177:                        } else
178:                            return null;// EJBHome.remove( ) and other EJBHome methods are not process by the container
179:                    } else if (EJBObject.class == declaringClass
180:                            || EJBLocalObject.class == declaringClass) {
181:                        return null;// EJBObject.remove( ) and other EJBObject methods are not process by the container
182:                    }
183:
184:                    Object bean = instanceManager.getInstance(callContext);
185:
186:                    callContext.setCurrentOperation(Operation.BUSINESS);
187:                    callContext.setCurrentAllowedStates(StatelessContext
188:                            .getStates());
189:
190:                    Method runMethod = deployInfo
191:                            .getMatchingBeanMethod(callMethod);
192:
193:                    callContext.set(Method.class, runMethod);
194:                    callContext.setInvokedInterface(callInterface);
195:                    Object retValue = _invoke(callInterface, callMethod,
196:                            runMethod, args, bean, callContext);
197:                    instanceManager.poolInstance(callContext, bean);
198:
199:                    return retValue;
200:
201:                } finally {
202:                    ThreadContext.exit(oldCallContext);
203:                }
204:            }
205:
206:            private SecurityService getSecurityService() {
207:                return securityService;
208:            }
209:
210:            public StatelessInstanceManager getInstanceManager() {
211:                return instanceManager;
212:            }
213:
214:            /**
215:             * @deprecated use type-safe {@link #_invoke(Class, java.lang.reflect.Method, java.lang.reflect.Method, Object[], Instance, org.apache.openejb.core.ThreadContext)}
216:             */
217:            protected Object _invoke(Class callInterface, Method callMethod,
218:                    Method runMethod, Object[] args, Object object,
219:                    ThreadContext callContext) throws OpenEJBException {
220:                return _invoke(callInterface, callMethod, runMethod, args,
221:                        (Instance) object, callContext);
222:            }
223:
224:            protected Object _invoke(Class callInterface, Method callMethod,
225:                    Method runMethod, Object[] args, Instance instance,
226:                    ThreadContext callContext) throws OpenEJBException {
227:
228:                CoreDeploymentInfo deploymentInfo = callContext
229:                        .getDeploymentInfo();
230:                TransactionPolicy txPolicy = deploymentInfo
231:                        .getTransactionPolicy(callMethod);
232:                TransactionContext txContext = new TransactionContext(
233:                        callContext, getTransactionManager());
234:                txContext.callContext = callContext;
235:
236:                txPolicy.beforeInvoke(instance, txContext);
237:
238:                Object returnValue = null;
239:                try {
240:                    InterfaceType type = deploymentInfo
241:                            .getInterfaceType(callInterface);
242:                    if (type == InterfaceType.SERVICE_ENDPOINT) {
243:                        callContext.setCurrentOperation(Operation.BUSINESS_WS);
244:                        returnValue = invokeWebService(args, deploymentInfo,
245:                                runMethod, instance, returnValue);
246:                    } else {
247:                        List<InterceptorData> interceptors = deploymentInfo
248:                                .getMethodInterceptors(runMethod);
249:                        InterceptorStack interceptorStack = new InterceptorStack(
250:                                instance.bean, runMethod, Operation.BUSINESS,
251:                                interceptors, instance.interceptors);
252:                        returnValue = interceptorStack.invoke(args);
253:                    }
254:                } catch (Throwable re) {// handle reflection exception
255:                    ExceptionType type = deploymentInfo.getExceptionType(re);
256:                    if (type == ExceptionType.SYSTEM) {
257:                        /* System Exception ****************************/
258:
259:                        /**
260:                         * The bean instance is not put into the pool via instanceManager.poolInstance
261:                         * and therefore the instance will be garbage collected and destroyed.
262:                         * For this reason the discardInstance method of the StatelessInstanceManager
263:                         * does nothing.
264:                         */
265:
266:                        txPolicy.handleSystemException(re, instance, txContext);
267:                    } else {
268:                        /* Application Exception ***********************/
269:                        instanceManager.poolInstance(callContext, instance);
270:
271:                        txPolicy.handleApplicationException(re,
272:                                type == ExceptionType.APPLICATION_ROLLBACK,
273:                                txContext);
274:                    }
275:                } finally {
276:
277:                    txPolicy.afterInvoke(instance, txContext);
278:                }
279:
280:                return returnValue;
281:            }
282:
283:            private Object invokeWebService(Object[] args,
284:                    CoreDeploymentInfo deploymentInfo, Method runMethod,
285:                    Instance instance, Object returnValue) throws Exception {
286:                if (args.length != 2) {
287:                    throw new IllegalArgumentException(
288:                            "WebService calls must follow format {messageContext, interceptor}.");
289:                }
290:
291:                Object messageContext = args[0];
292:
293:                // This object will be used as an interceptor in the stack and will be responsible
294:                // for unmarshalling the soap message parts into an argument list that will be
295:                // used for the actual method invocation.
296:                //
297:                // We just need to make it an interceptor in the OpenEJB sense and tack it on the end
298:                // of our stack.
299:                Object interceptor = args[1];
300:
301:                //  Add the webservice interceptor to the list of interceptor instances
302:                Map<String, Object> interceptors = new HashMap<String, Object>(
303:                        instance.interceptors);
304:                {
305:                    interceptors.put(interceptor.getClass().getName(),
306:                            interceptor);
307:                }
308:
309:                //  Create an InterceptorData for the webservice interceptor to the list of interceptorDatas for this method
310:                List<InterceptorData> interceptorDatas = new ArrayList<InterceptorData>(
311:                        deploymentInfo.getMethodInterceptors(runMethod));
312:                {
313:                    InterceptorData providerData = new InterceptorData(
314:                            interceptor.getClass());
315:                    ClassFinder finder = new ClassFinder(interceptor.getClass());
316:                    providerData.getAroundInvoke().addAll(
317:                            finder.findAnnotatedMethods(AroundInvoke.class));
318:                    interceptorDatas.add(providerData);
319:                }
320:
321:                InterceptorStack interceptorStack = new InterceptorStack(
322:                        instance.bean, runMethod, Operation.BUSINESS_WS,
323:                        interceptorDatas, interceptors);
324:                Object[] params = new Object[runMethod.getParameterTypes().length];
325:                if (messageContext instanceof  javax.xml.rpc.handler.MessageContext) {
326:                    ThreadContext
327:                            .getThreadContext()
328:                            .set(
329:                                    javax.xml.rpc.handler.MessageContext.class,
330:                                    (javax.xml.rpc.handler.MessageContext) messageContext);
331:                    returnValue = interceptorStack
332:                            .invoke(
333:                                    (javax.xml.rpc.handler.MessageContext) messageContext,
334:                                    params);
335:                } else if (messageContext instanceof  javax.xml.ws.handler.MessageContext) {
336:                    ThreadContext
337:                            .getThreadContext()
338:                            .set(
339:                                    javax.xml.ws.handler.MessageContext.class,
340:                                    (javax.xml.ws.handler.MessageContext) messageContext);
341:                    returnValue = interceptorStack
342:                            .invoke(
343:                                    (javax.xml.ws.handler.MessageContext) messageContext,
344:                                    params);
345:                }
346:                return returnValue;
347:            }
348:
349:            private TransactionManager getTransactionManager() {
350:                return transactionManager;
351:            }
352:
353:            protected ProxyInfo createEJBObject(
354:                    org.apache.openejb.core.CoreDeploymentInfo deploymentInfo,
355:                    Method callMethod) {
356:                return new ProxyInfo(deploymentInfo, null);
357:            }
358:
359:            public void discardInstance(Object instance, ThreadContext context) {
360:                instanceManager.discardInstance(context, instance);
361:            }
362:        }
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