Source Code Cross Referenced for TransactionChain.java in  » EJB-Server-resin-3.1.5 » resin » com » caucho » ejb » gen » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » resin » com.caucho.ejb.gen 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003:         *
004:         * This file is part of Resin(R) Open Source
005:         *
006:         * Each copy or derived work must preserve the copyright notice and this
007:         * notice unmodified.
008:         *
009:         * Resin Open Source is free software; you can redistribute it and/or modify
010:         * it under the terms of the GNU General Public License as published by
011:         * the Free Software Foundation; either version 2 of the License, or
012:         * (at your option) any later version.
013:         *
014:         * Resin Open Source is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017:         * of NON-INFRINGEMENT.  See the GNU General Public License for more
018:         * details.
019:         *
020:         * You should have received a copy of the GNU General Public License
021:         * along with Resin Open Source; if not, write to the
022:         *   Free SoftwareFoundation, Inc.
023:         *   59 Temple Place, Suite 330
024:         *   Boston, MA 02111-1307  USA
025:         *
026:         * @author Scott Ferguson
027:         */
028:
029:        package com.caucho.ejb.gen;
030:
031:        import com.caucho.ejb.cfg.*;
032:        import com.caucho.java.JavaWriter;
033:        import com.caucho.java.gen.BaseMethod;
034:        import com.caucho.java.gen.CallChain;
035:        import com.caucho.java.gen.FilterCallChain;
036:        import com.caucho.java.gen.MethodCallChain;
037:        import com.caucho.util.L10N;
038:
039:        import java.io.IOException;
040:        import java.util.ArrayList;
041:        import java.util.logging.*;
042:
043:        import javax.ejb.*;
044:        import javax.ejb.ApplicationException;
045:
046:        /**
047:         * Generates the skeleton for a method call.
048:         */
049:        public class TransactionChain extends FilterCallChain {
050:            private static final Logger log = Logger
051:                    .getLogger(TransactionChain.class.getName());
052:            private static final L10N L = new L10N(TransactionChain.class);
053:
054:            private ApiMethod _apiMethod;
055:            private ApiMethod _implMethod;
056:
057:            private ApiClass _businessInterface;
058:
059:            private TransactionAttributeType _xaType;
060:
061:            private boolean _isEJB3;
062:
063:            private ArrayList<ApplicationExceptionConfig> _appExceptions;
064:
065:            public TransactionChain(CallChain next,
066:                    TransactionAttributeType xaType, ApiMethod apiMethod,
067:                    ApiMethod implMethod) {
068:                this (next, xaType, apiMethod, implMethod, false, null);
069:            }
070:
071:            public TransactionChain(CallChain next,
072:                    TransactionAttributeType xaType, ApiMethod apiMethod,
073:                    ApiMethod implMethod, boolean isEJB3,
074:                    ArrayList<ApplicationExceptionConfig> appExceptions) {
075:                super (next);
076:
077:                _xaType = xaType;
078:                _apiMethod = apiMethod;
079:                _implMethod = implMethod;
080:                _isEJB3 = isEJB3;
081:                _appExceptions = appExceptions;
082:
083:                if (implMethod == null)
084:                    _implMethod = apiMethod;
085:            }
086:
087:            public static TransactionChain create(CallChain next,
088:                    TransactionAttributeType xaType, ApiMethod apiMethod,
089:                    ApiMethod implMethod) {
090:                return new TransactionChain(next, xaType, apiMethod, implMethod);
091:            }
092:
093:            public static TransactionChain create(CallChain next,
094:                    TransactionAttributeType xaType, ApiMethod apiMethod,
095:                    ApiMethod implMethod, boolean isEJB3,
096:                    ArrayList<ApplicationExceptionConfig> appExceptions) {
097:                return new TransactionChain(next, xaType, apiMethod,
098:                        implMethod, isEJB3, appExceptions);
099:            }
100:
101:            /**
102:             * Prints a call within the same JVM
103:             *
104:             * @param methodName the name of the method to call
105:             * @param method the method to call
106:             */
107:            public void generateCall(JavaWriter out, String retType,
108:                    String var, String[] args) throws IOException {
109:                // ejb/0ff0 TCK: ejb30/bb/session/stateful/sessioncontext/annotated/getInvokedBusinessInterfaceRemote2
110:                //out.println("if (getServer().getContext() != null)");
111:                //out.println("  getServer().getContext().__caucho_setInvokedBusinessInterface(_businessInterface);");
112:
113:                if (_isEJB3 && _businessInterface != null) {
114:                    out.println("if (_context != null)");
115:                    out
116:                            .println("  _context.__caucho_setInvokedBusinessInterface("
117:                                    + _businessInterface.getName() + ");");
118:                    out.println();
119:                }
120:
121:                out.println("Thread thread = Thread.currentThread();");
122:                out
123:                        .println("ClassLoader oldLoader = thread.getContextClassLoader();");
124:
125:                out
126:                        .print("javax.transaction.Transaction oldTrans = _xaManager.getTransaction();");
127:                out.println();
128:
129:                out.print("com.caucho.ejb.xa.TransactionContext trans");
130:
131:                if (_xaType != null) {
132:                    switch (_xaType) {
133:                    /*
134:                      case EjbMethod.TRANS_SINGLE_READ:
135:                      out.println(" = _xaManager.beginSingleRead();");
136:                      break;
137:                     */
138:
139:                    case REQUIRES_NEW:
140:                        out.println(" = _xaManager.beginRequiresNew();");
141:                        break;
142:                    //case EjbMethod.TRANS_BEAN:
143:                    case NOT_SUPPORTED:
144:                        out.println(" = _xaManager.suspend();");
145:                        break;
146:                    case NEVER:
147:                        out.println(" = _xaManager.beginNever();");
148:                        break;
149:                    case REQUIRED:
150:                        out.println(" = _xaManager.beginRequired();");
151:                        break;
152:                    case MANDATORY:
153:                        out.println(" = _xaManager.beginMandatory();");
154:                        break;
155:                    default:
156:                    case SUPPORTS:
157:                        out.println(" = _xaManager.beginSupports();");
158:                        break;
159:                    }
160:                }
161:
162:                out.println("try {");
163:                out.pushDepth();
164:
165:                out
166:                        .println("thread.setContextClassLoader(_context._server.getClassLoader());");
167:                out.println();
168:
169:                /* XXX: need to check something like _context.isDead() instead
170:                // ejb/0fe4: throws exception if this context has been removed.
171:                out.println("getServer().getContext(_context.getPrimaryKey());");
172:                out.println();
173:                 */
174:
175:                super .generateCall(out, retType, var, args);
176:
177:                out.popDepth();
178:                out.println("} catch (Exception e) {");
179:                out.pushDepth();
180:
181:                Class beanClass = _implMethod.getDeclaringClass();
182:
183:                if (_isEJB3) { // XXX && ! _implMethod.isAnnotationPresent(javax.ejb.Remove.class)) {
184:                    generateExceptionHandling(out);
185:                }
186:
187:                /*
188:                if (! out.isSession())
189:                  out.println("if (ptr != null) ptr._ejb_state = QEntity._CAUCHO_IS_DEAD;");
190:                 */
191:
192:                out
193:                        .println("e = com.caucho.ejb.EJBExceptionWrapper.create(e);");
194:                out.println();
195:
196:                // TCK: needs QA, ejb30/bb/localaccess/statefulclient/exceptionTest1
197:                //if (_xaType != EjbMethod.TRANS_BEAN) {
198:                if (_xaType != null) {
199:                    out.println("if (trans.getTransaction() != oldTrans) {");
200:                    out.println("  throw trans.setRollbackOnly(e);");
201:                    out.println("}");
202:                }
203:
204:                // ejb/02b1
205:                out.println("throw (javax.ejb.EJBException) e;");
206:
207:                out.popDepth();
208:
209:                out.println("} finally {");
210:                out.pushDepth();
211:
212:                out.println("thread.setContextClassLoader(oldLoader);");
213:
214:                // TCK: needs QA, ejb30/bb/localaccess/statefulclient/exceptionTest1
215:                // if (_xaType != EjbMethod.TRANS_BEAN)
216:                // ejb/0224 vs TCK
217:                //out.println("if (trans.getTransaction() != oldTrans)");
218:                // XXX TCK: ejb30/bb/session/stateful/sessioncontext/annotated/getInvokedBusinessInterfaceLocal1
219:                out.println("  trans.commit();");
220:
221:                /*
222:                if (out.isSession())
223:                  out.println("if (ptr != null) ptr._ejb_isActive = false;");
224:                 */
225:
226:                out.popDepth();
227:                out.println("}");
228:            }
229:
230:            protected void generateExceptionHandling(JavaWriter out)
231:                    throws IOException {
232:                // boolean isCmt = _xaType != EjbMethod.TRANS_BEAN;
233:                boolean isCmt = _xaType != null;
234:
235:                // ejb/0fb9
236:                out
237:                        .println("if (e instanceof com.caucho.ejb.EJBExceptionWrapper)");
238:                out.println("  e = (Exception) e.getCause();");
239:                out.println();
240:
241:                out
242:                        .println("if (e instanceof java.lang.reflect.InvocationTargetException)");
243:                out.println("  e = (Exception) e.getCause();");
244:                out.println();
245:
246:                Class beanClass = _implMethod.getDeclaringClass();
247:
248:                // ejb/0500
249:                Class exnTypes[]; // = getExceptionTypes();
250:
251:                // ejb/0fb3, ejb/0fbg
252:                for (Class cl : _implMethod.getExceptionTypes()) {
253:                    if (!Exception.class.isAssignableFrom(cl)) {
254:                        // XXX:
255:                        // hessian/3600
256:                        log.info(cl + " is not handled by EJB");
257:                        continue;
258:                    }
259:
260:                    out.println("if (e instanceof " + cl.getName() + ") {");
261:                    out.pushDepth();
262:
263:                    if (isCmt) {
264:                        // ejb/0fc0, ejb/0fc1
265:                        // TCK: ejb30/bb/session/stateful/annotation/appexception/annotated/atCheckedRollbackAppExceptionTest
266:
267:                        boolean isApplicationException = false;
268:                        boolean isRollback = false;
269:
270:                        // Check @ApplicationException(rollback=true/false)
271:                        ApplicationException ann = (ApplicationException) cl
272:                                .getAnnotation(ApplicationException.class);
273:
274:                        if (ann != null) {
275:                            isApplicationException = true;
276:                            isRollback = ann.rollback();
277:                        } else if (_appExceptions != null) {
278:                            // ejb/0fc3
279:                            for (ApplicationExceptionConfig cfg : _appExceptions) {
280:                                if (cfg.getExceptionClass()
281:                                        .equals(cl.getName())) {
282:                                    isApplicationException = true;
283:                                    isRollback = cfg.isRollback();
284:                                    break;
285:                                }
286:                            }
287:                        }
288:
289:                        if (!isApplicationException) {
290:                            // ejb/0fc0
291:                            out
292:                                    .println("if (trans.getTransaction() != oldTrans)");
293:                            out.println("  trans.setRollbackOnly(e);");
294:                        } else if (isRollback) {
295:                            // ejb/0fc1
296:                            out.println("trans.setRollbackOnly(e);");
297:                        }
298:                        // else do not rollback.
299:                    }
300:
301:                    out.println("throw (" + cl.getName() + ") e;");
302:
303:                    out.popDepth();
304:                    out.println("}");
305:                    out.println();
306:                }
307:            }
308:        }
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