Source Code Cross Referenced for QueryPersistentDescriptorGenerator.java in  » Database-ORM » ODAL » com » completex » objective » tools » generators » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database ORM » ODAL » com.completex.objective.tools.generators 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         *  Objective Database Abstraction Layer (ODAL)
003:         *  Copyright (c) 2004, The ODAL Development Group
004:         *  All rights reserved.
005:         *  For definition of the ODAL Development Group please refer to LICENCE.txt file
006:         *
007:         *  Distributable under LGPL license.
008:         *  See terms of license at gnu.org.
009:         */package com.completex.objective.tools.generators;
010:
011:        import com.completex.objective.components.persistency.BasicManagedQueryFactory;
012:        import com.completex.objective.components.persistency.CallParameter;
013:        import com.completex.objective.components.persistency.JavaToMetaType;
014:        import com.completex.objective.components.persistency.Parameter;
015:        import com.completex.objective.components.persistency.core.impl.query.SqlManagedQueryFactoryImpl;
016:        import com.completex.objective.components.persistency.meta.ModelLoader;
017:        import com.completex.objective.components.persistency.meta.impl.QueryModelLoaderImpl;
018:        import com.completex.objective.util.PropertyMap;
019:
020:        import java.io.FileReader;
021:        import java.io.IOException;
022:        import java.io.InputStream;
023:        import java.sql.SQLException;
024:        import java.util.ArrayList;
025:        import java.util.Iterator;
026:        import java.util.LinkedHashMap;
027:        import java.util.List;
028:        import java.util.Map;
029:
030:        /**
031:         * Args[0]:      query-descriptor-config.sdl
032:         *
033:         * @author Gennady Krizhevsky
034:         */
035:        public class QueryPersistentDescriptorGenerator extends
036:                AbstractPersistentDescriptorGenerator {
037:
038:            private BasicManagedQueryFactory[] factories;
039:            private QueryModelLoaderImpl.TableNames tableNames;
040:
041:            public static final String TAG_QUERY_DESC_CONFIG_FILE = "query_desc_file";
042:            public static final String TAG_CLASS_NAME = "className";
043:            public static final String TAG_ALIASES = "aliases";
044:            public static final String TAG_SQL = "sql";
045:            public static final String TAG_DEFAULT_PARAMETERS = "defaultParameters";
046:            public static final String TAG_IS_CALL = "isCall";
047:
048:            public static final String DEFAULT_INTERNAL_DESC_FILE_NAME = "query_internal_desc_file.sdl";
049:            public static final String DEFAULT_EXTERNAL_DESC_FILE_NAME = "query_external_desc_file.sdl";
050:
051:            public QueryPersistentDescriptorGenerator() {
052:            }
053:
054:            public QueryPersistentDescriptorGenerator(String propertiesPath)
055:                    throws IOException, IllegalAccessException,
056:                    ClassNotFoundException, InstantiationException,
057:                    SQLException {
058:                setup(propertiesPath);
059:            }
060:
061:            public QueryPersistentDescriptorGenerator(PropertyMap propertyMap)
062:                    throws IOException, IllegalAccessException,
063:                    ClassNotFoundException, InstantiationException,
064:                    SQLException {
065:                setup(propertyMap);
066:            }
067:
068:            public QueryPersistentDescriptorGenerator(InputStream inputStream)
069:                    throws IOException, IllegalAccessException,
070:                    InstantiationException, ClassNotFoundException,
071:                    SQLException {
072:                setup(inputStream);
073:            }
074:
075:            protected void beforeInitModelLoader(PropertyMap propertyMap)
076:                    throws IOException {
077:                instantiateFactories(propertyMap);
078:                instantiateTableNames(propertyMap);
079:            }
080:
081:            protected void extractExternalFileName(PropertyMap propertyMap) {
082:                externalFileName = propertyMap
083:                        .getProperty(TAG_EXTERNAL_DESC_FILE,
084:                                DEFAULT_EXTERNAL_DESC_FILE_NAME);
085:            }
086:
087:            protected void extractInternalFileName(PropertyMap propertyMap) {
088:                internalFileName = propertyMap
089:                        .getProperty(TAG_INTERNAL_DESC_FILE,
090:                                DEFAULT_INTERNAL_DESC_FILE_NAME);
091:            }
092:
093:            protected ModelLoader getDatabaseModelLoaderAdapter(
094:                    String filterPattern, JavaToMetaType javaToMetaType,
095:                    String schema, String catalog) {
096:                return new QueryModelLoaderImpl(persistency, factories,
097:                        tableNames, filterPattern, javaToMetaType, logger);
098:            }
099:
100:            /**
101:             //    TEST_MVASJA = {
102:             //       aliases = [vasja, vasja1, ...]
103:             //       className = NULL
104:             //       sql = "select 'vasja' from dual where 1=?"
105:             //       defaultParameters = [ 1 ]
106:             //    } 
107:             * @param propertyMap
108:             * @throws IOException
109:             */
110:            private void instantiateTableNames(PropertyMap propertyMap)
111:                    throws IOException {
112:                if (tableNames == null) {
113:                    PropertyMap properties = extractQueryConfig(propertyMap);
114:                    LinkedHashMap aliases = new LinkedHashMap();
115:
116:                    for (Iterator it = properties.keySet().iterator(); it
117:                            .hasNext();) {
118:                        String tableName = (String) it.next();
119:                        Map configMap = (Map) properties.get(tableName);
120:                        List aliasesForTable = (List) configMap
121:                                .get(TAG_ALIASES);
122:                        if (aliasesForTable != null) {
123:                            aliases.put(tableName, aliasesForTable);
124:                        }
125:                    }
126:                    tableNames = new QueryModelLoaderImpl.TableNames(aliases);
127:                }
128:            }
129:
130:            /**
131:             //    TEST_MVASJA = {
132:             //       className = NULL
133:             //       sql = "select 'vasja' from dual where 1=?"
134:             //       defaultParameters = [ 1 ]
135:             //    }
136:             * @param propertyMap
137:             * @throws IOException
138:             */
139:            private void instantiateFactories(PropertyMap propertyMap)
140:                    throws IOException {
141:                if (factories == null) {
142:                    ArrayList factoryList = instantiateFactoryList(propertyMap);
143:                    factories = (BasicManagedQueryFactory[]) factoryList
144:                            .toArray(new BasicManagedQueryFactory[factoryList
145:                                    .size()]);
146:                }
147:            }
148:
149:            private ArrayList instantiateFactoryList(PropertyMap propertyMap)
150:                    throws IOException {
151:                ArrayList factoryList = new ArrayList();
152:                PropertyMap properties = extractQueryConfig(propertyMap);
153:
154:                for (Iterator it = properties.keySet().iterator(); it.hasNext();) {
155:                    String queryName = (String) it.next();
156:                    PropertyMap queryMap = properties.getPropertyMap(queryName);
157:                    String className = queryMap.getProperty(TAG_CLASS_NAME);
158:                    BasicManagedQueryFactory factory;
159:                    if (className == null) {
160:                        factory = factoryFromSql(queryName, queryMap);
161:                    } else {
162:                        factory = factoryFromClassName(className, factoryList);
163:                    }
164:                    boolean isCall = BasicManagedQueryFactory.SupportedDelegates
165:                            .isCall(factory.getDelegateType());
166:                    Parameter[] parameters = extractDefaultParameters(queryMap,
167:                            isCall);
168:                    factory.setDefaultParameters(parameters);
169:                    factoryList.add(factory);
170:                }
171:                return factoryList;
172:            }
173:
174:            private PropertyMap extractQueryConfig(PropertyMap propertyMap)
175:                    throws IOException {
176:                String queryConfigFileName = propertyMap
177:                        .getProperty(TAG_QUERY_DESC_CONFIG_FILE);
178:                if (queryConfigFileName == null) {
179:                    throw new IllegalArgumentException("Neither factories nor "
180:                            + TAG_QUERY_DESC_CONFIG_FILE
181:                            + " are found in properties");
182:                }
183:                queryConfigFileName = queryConfigFileName.trim();
184:                FileReader reader = new FileReader(queryConfigFileName);
185:                Map map = (Map) sdlReader.read(reader);
186:                return PropertyMap.toPropertyMap(map);
187:            }
188:
189:            private Parameter[] extractDefaultParameters(PropertyMap queryMap,
190:                    boolean isCall) {
191:                Parameter[] parameters = null;
192:                List defaultParameters = queryMap
193:                        .getList(TAG_DEFAULT_PARAMETERS);
194:                if (defaultParameters != null) {
195:                    parameters = new Parameter[defaultParameters.size()];
196:                    for (int i = 0; i < defaultParameters.size(); i++) {
197:                        Map parameter = (Map) defaultParameters.get(i);
198:                        if (isCall) {
199:                            PropertyMap parameterMap = PropertyMap
200:                                    .toPropertyMap(parameter);
201:                            boolean isRefCursor = parameterMap
202:                                    .getBoolean(CallParameter.TAG_REF_CURSOR);
203:                            if (isRefCursor) {
204:                                parameters[i] = CallParameter.PARAMETER_REF_CURSOR;
205:                            } else {
206:                                parameters[i] = new CallParameter(parameterMap);
207:                            }
208:                        } else {
209:                            parameters[i] = new Parameter(parameter);
210:                        }
211:                    }
212:                }
213:                return parameters;
214:            }
215:
216:            private BasicManagedQueryFactory factoryFromClassName(
217:                    String className, ArrayList factoryList) {
218:                BasicManagedQueryFactory factory;
219:                factory = QueryModelLoaderImpl.instantiateFactory(className);
220:                //        factoryList.add(factory);
221:                return factory;
222:            }
223:
224:            private BasicManagedQueryFactory factoryFromSql(String queryName,
225:                    PropertyMap queryMap) {
226:                BasicManagedQueryFactory factory;
227:                String sql = queryMap.getProperty(TAG_SQL);
228:                if (sql == null) {
229:                    throw new IllegalArgumentException("Neither "
230:                            + TAG_CLASS_NAME + " nor " + TAG_SQL
231:                            + " found in config");
232:                }
233:                Class delegateClass;
234:                if (sql.trim().startsWith("{")) {
235:                    delegateClass = BasicManagedQueryFactory.SupportedDelegates.CALL_FACTORY;
236:                } else {
237:                    delegateClass = BasicManagedQueryFactory.SupportedDelegates.QUERY_FACTORY;
238:                }
239:                factory = new SqlManagedQueryFactoryImpl(queryName, sql,
240:                        delegateClass);
241:                return factory;
242:            }
243:
244:            public BasicManagedQueryFactory[] getFactories() {
245:                return factories;
246:            }
247:
248:            public void setFactories(BasicManagedQueryFactory[] factories) {
249:                this .factories = factories;
250:            }
251:
252:            public QueryModelLoaderImpl.TableNames getTableNames() {
253:                return tableNames;
254:            }
255:
256:            public void setTableNames(QueryModelLoaderImpl.TableNames tableNames) {
257:                this .tableNames = tableNames;
258:            }
259:
260:            public static void main(String[] args) throws Exception {
261:                if (args.length < 1) {
262:                    System.out
263:                            .println("ERROR:  PersistentDescriptorGenerator has to have one command line parameter - <descritor.properties> ");
264:                    System.exit(1);
265:                }
266:                QueryPersistentDescriptorGenerator generator = new QueryPersistentDescriptorGenerator(
267:                        args[0]);
268:                //        MetaModel model = generator.generate();
269:                generator.generate();
270:                generator.dispose();
271:                //        System.out.println("\n=============================================================\n");
272:                //        System.out.println("  -- Model -- ");
273:                //        System.out.println("\n-------------------------------------------------------------\n");
274:                //        System.out.println(model);
275:            }
276:        }
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