Source Code Cross Referenced for PersistenceUnitInfoImpl.java in  » J2EE » openejb3 » org » apache » openejb » persistence » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » openejb3 » org.apache.openejb.persistence 
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.persistence;
017:
018:        import org.apache.openejb.util.Join;
019:
020:        import java.lang.instrument.ClassFileTransformer;
021:        import java.lang.instrument.IllegalClassFormatException;
022:        import java.net.MalformedURLException;
023:        import java.net.URL;
024:        import java.net.URI;
025:        import java.net.URISyntaxException;
026:        import java.net.URLDecoder;
027:        import java.net.URLEncoder;
028:        import java.security.ProtectionDomain;
029:        import java.util.ArrayList;
030:        import java.util.List;
031:        import java.util.Properties;
032:        import java.io.File;
033:        import java.io.IOException;
034:        import javax.persistence.spi.ClassTransformer;
035:        import javax.persistence.spi.PersistenceUnitInfo;
036:        import javax.persistence.spi.PersistenceUnitTransactionType;
037:        import javax.sql.DataSource;
038:
039:        public class PersistenceUnitInfoImpl implements  PersistenceUnitInfo {
040:            /**
041:             * External handler which handles adding a runtime ClassTransformer to the classloader.
042:             */
043:            private final PersistenceClassLoaderHandler persistenceClassLoaderHandler;
044:
045:            /**
046:             * The unique id of this persistence unit.
047:             */
048:            private String id;
049:
050:            /**
051:             * Name of this persistence unit.  The JPA specification has restrictions on the
052:             * uniqueness of this name.
053:             */
054:            private String persistenceUnitName;
055:
056:            /**
057:             * Name of the persistence provider implementation class.
058:             */
059:            private String persistenceProviderClassName;
060:
061:            /**
062:             * Does this persistence unti participate in JTA transactions or does it manage
063:             * resource local tranactions using the JDBC APIs.
064:             */
065:            private PersistenceUnitTransactionType transactionType = PersistenceUnitTransactionType.JTA;
066:
067:            /**
068:             * Data source used by jta persistence units for accessing transactional data.
069:             */
070:            private DataSource jtaDataSource;
071:
072:            /**
073:             * Data source used by non-jta persistence units and by jta persistence units for
074:             * non-transactional operations such as accessing a primary key table or sequence.
075:             */
076:            private DataSource nonJtaDataSource;
077:
078:            /**
079:             * Names if the entity-mapping.xml files relative to to the persistenceUnitRootUrl.
080:             */
081:            private final List<String> mappingFileNames = new ArrayList<String>();
082:
083:            /**
084:             * The jar file locations that make up this persistence unit.
085:             */
086:            private final List<URL> jarFileUrls = new ArrayList<URL>();
087:
088:            /**
089:             * Location of the root of the persistent unit.  The directory in which
090:             * META-INF/persistence.xml is located.
091:             */
092:            private URL persistenceUnitRootUrl;
093:
094:            /**
095:             * List of the managed entity classes.
096:             */
097:            private final List<String> managedClassNames = new ArrayList<String>();
098:
099:            /**
100:             * Should class not listed in the persistence unit be managed by the EntityManager?
101:             */
102:            private boolean excludeUnlistedClasses;
103:
104:            /**
105:             * JPA provider properties for this persistence unit.
106:             */
107:            private Properties properties;
108:
109:            /**
110:             * Class loader used by JPA to load Entity classes.
111:             */
112:            private ClassLoader classLoader;
113:
114:            public PersistenceUnitInfoImpl() {
115:                this .persistenceClassLoaderHandler = null;
116:            }
117:
118:            public PersistenceUnitInfoImpl(
119:                    PersistenceClassLoaderHandler persistenceClassLoaderHandler) {
120:                this .persistenceClassLoaderHandler = persistenceClassLoaderHandler;
121:            }
122:
123:            public String getId() {
124:                return id;
125:            }
126:
127:            public void setId(String id) {
128:                this .id = id;
129:            }
130:
131:            public String getPersistenceUnitName() {
132:                return persistenceUnitName;
133:            }
134:
135:            public void setPersistenceUnitName(String persistenceUnitName) {
136:                this .persistenceUnitName = persistenceUnitName;
137:            }
138:
139:            public String getPersistenceProviderClassName() {
140:                return persistenceProviderClassName;
141:            }
142:
143:            public void setPersistenceProviderClassName(
144:                    String persistenceProviderClassName) {
145:                this .persistenceProviderClassName = persistenceProviderClassName;
146:            }
147:
148:            public PersistenceUnitTransactionType getTransactionType() {
149:                return transactionType;
150:            }
151:
152:            public void setTransactionType(
153:                    PersistenceUnitTransactionType transactionType) {
154:                this .transactionType = transactionType;
155:            }
156:
157:            public DataSource getJtaDataSource() {
158:                return jtaDataSource;
159:            }
160:
161:            public void setJtaDataSource(DataSource jtaDataSource) {
162:                this .jtaDataSource = jtaDataSource;
163:            }
164:
165:            public DataSource getNonJtaDataSource() {
166:                return nonJtaDataSource;
167:            }
168:
169:            public void setNonJtaDataSource(DataSource nonJtaDataSource) {
170:                this .nonJtaDataSource = nonJtaDataSource;
171:            }
172:
173:            public List<String> getMappingFileNames() {
174:                return mappingFileNames;
175:            }
176:
177:            public void setMappingFileNames(List<String> mappingFileNames) {
178:                if (mappingFileNames == null) {
179:                    throw new NullPointerException("mappingFileNames is null");
180:                }
181:                this .mappingFileNames.clear();
182:                this .mappingFileNames.addAll(mappingFileNames);
183:            }
184:
185:            public void addMappingFileName(String mappingFileName) {
186:                if (mappingFileName == null) {
187:                    throw new NullPointerException("mappingFileName is null");
188:                }
189:                mappingFileNames.add(mappingFileName);
190:            }
191:
192:            public List<URL> getJarFileUrls() {
193:                return jarFileUrls;
194:            }
195:
196:            public URL getPersistenceUnitRootUrl() {
197:                return persistenceUnitRootUrl;
198:            }
199:
200:            public void setRootUrlAndJarUrls(String persistenceUnitRootUrl,
201:                    List<String> jarFiles) throws MalformedURLException {
202:                File root = new File(persistenceUnitRootUrl);
203:
204:                this .persistenceUnitRootUrl = toUrl(root);
205:                try {
206:
207:                    for (String path : jarFiles) {
208:                        File file = new File(root, path);
209:                        file = file.getCanonicalFile();
210:                        jarFileUrls.add(toUrl(file));
211:                    }
212:                } catch (IOException e) {
213:                    throw new IllegalStateException(e);
214:                }
215:            }
216:
217:            private URL toUrl(File root) throws MalformedURLException {
218:                URL url = root.toURL();
219:
220:                try {
221:                    url.toURI();
222:                } catch (URISyntaxException e) {
223:                    // Likely has spaces in it.
224:                    try {
225:                        String s = url.toExternalForm();
226:                        URL fixed = new URL(s.replaceAll(" ", "%20"));
227:                        fixed.toURI();
228:                        url = fixed;
229:                    } catch (MalformedURLException e1) {
230:                    } catch (URISyntaxException e1) {
231:                        // oh well, we tried.
232:                    }
233:                }
234:
235:                return url;
236:            }
237:
238:            public List<String> getManagedClassNames() {
239:                return managedClassNames;
240:            }
241:
242:            public void setManagedClassNames(List<String> managedClassNames) {
243:                if (managedClassNames == null) {
244:                    throw new NullPointerException("managedClassNames is null");
245:                }
246:                this .managedClassNames.clear();
247:                this .managedClassNames.addAll(managedClassNames);
248:            }
249:
250:            public void addManagedClassName(String className) {
251:                managedClassNames.add(className);
252:            }
253:
254:            public boolean excludeUnlistedClasses() {
255:                return excludeUnlistedClasses;
256:            }
257:
258:            public void setExcludeUnlistedClasses(boolean excludeUnlistedClasses) {
259:                this .excludeUnlistedClasses = excludeUnlistedClasses;
260:            }
261:
262:            public Properties getProperties() {
263:                return properties;
264:            }
265:
266:            public void setProperties(Properties properties) {
267:                this .properties = properties;
268:            }
269:
270:            public ClassLoader getClassLoader() {
271:                return classLoader;
272:            }
273:
274:            public void setClassLoader(ClassLoader classLoader) {
275:                this .classLoader = classLoader;
276:            }
277:
278:            public void addTransformer(ClassTransformer classTransformer) {
279:                if (persistenceClassLoaderHandler != null) {
280:                    PersistenceClassFileTransformer classFileTransformer = new PersistenceClassFileTransformer(
281:                            classTransformer);
282:                    persistenceClassLoaderHandler.addTransformer(id,
283:                            classLoader, classFileTransformer);
284:                }
285:            }
286:
287:            public ClassLoader getNewTempClassLoader() {
288:                if (persistenceClassLoaderHandler != null) {
289:                    return persistenceClassLoaderHandler
290:                            .getNewTempClassLoader(classLoader);
291:                } else {
292:                    return null;
293:                }
294:            }
295:
296:            public static class PersistenceClassFileTransformer implements 
297:                    ClassFileTransformer {
298:                private final ClassTransformer classTransformer;
299:
300:                public PersistenceClassFileTransformer(
301:                        ClassTransformer classTransformer) {
302:                    this .classTransformer = classTransformer;
303:                }
304:
305:                public byte[] transform(ClassLoader classLoader,
306:                        String className, Class<?> classBeingRedefined,
307:                        ProtectionDomain protectionDomain,
308:                        byte[] classfileBuffer)
309:                        throws IllegalClassFormatException {
310:                    // Example code to easily debug transformation of a specific class
311:                    // if ("org/apache/openejb/test/entity/cmp/BasicCmpBean".equals(className) ||
312:                    //        "org/apache/openejb/test/entity/cmp/BasicCmp2Bean_BasicCmp2Bean".equals(className)) {
313:                    //    System.err.println("Loading " + className);
314:                    // }
315:                    byte[] bytes = classTransformer.transform(classLoader,
316:                            className.replace('/', '.'), classBeingRedefined,
317:                            protectionDomain, classfileBuffer);
318:                    return bytes;
319:                }
320:            }
321:        }
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