eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/store/CdmStore.java

   1 /**
   2  * Copyright (C) 2007 EDIT
   3  * European Distributed Institute of Taxonomy
   4  * http://www.e-taxonomy.eu
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version 1.1
   7  * See LICENSE.TXT at the top of this package for the full license terms.
   8  */
   9
  10 package eu.etaxonomy.taxeditor.store;
  11
  12 import java.lang.reflect.InvocationTargetException;
  13 import java.lang.reflect.Method;
  14 import java.lang.reflect.Type;
  15 import java.util.EnumSet;
  16
  17 import org.eclipse.core.runtime.IProgressMonitor;
  18 import org.eclipse.core.runtime.jobs.Job;
  19 import org.eclipse.swt.widgets.Display;
  20 import org.springframework.core.io.ClassPathResource;
  21 import org.springframework.core.io.Resource;
  22 import org.springframework.security.access.PermissionEvaluator;
  23 import org.springframework.security.authentication.ProviderManager;
  24 import org.springframework.security.core.Authentication;
  25 import org.springframework.security.core.context.SecurityContext;
  26 import org.springframework.security.core.context.SecurityContextHolder;
  27
  28 import eu.etaxonomy.cdm.api.application.ICdmApplicationConfiguration;
  29 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  30 import eu.etaxonomy.cdm.api.service.IService;
  31 import eu.etaxonomy.cdm.database.DbSchemaValidation;
  32 import eu.etaxonomy.cdm.database.ICdmDataSource;
  33 import eu.etaxonomy.cdm.ext.geo.IEditGeoService;
  34 import eu.etaxonomy.cdm.model.common.CdmBase;
  35 import eu.etaxonomy.cdm.model.common.Language;
  36 import eu.etaxonomy.cdm.persistence.hibernate.permission.CRUD;
  37 import eu.etaxonomy.cdm.persistence.hibernate.permission.CdmPermissionEvaluator;
  38 import eu.etaxonomy.cdm.persistence.hibernate.permission.ICdmPermissionEvaluator;
  39 import eu.etaxonomy.cdm.persistence.hibernate.permission.Role;
  40 import eu.etaxonomy.taxeditor.datasource.CdmDataSourceRepository;
  41 import eu.etaxonomy.taxeditor.io.ExportManager;
  42 import eu.etaxonomy.taxeditor.io.ImportManager;
  43 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  44 import eu.etaxonomy.taxeditor.store.internal.TaxeditorStorePlugin;
  45 import eu.etaxonomy.taxeditor.view.datasource.CdmDataSourceViewPart;
  46
  47 /**
  48  * This implementation of ICdmDataRepository depends on hibernate sessions to
  49  * store the data correctly for the current session. No state is held in this
  50  * class.
  51  *
  52  * Only methods that either get or manipulate data are exposed here. So this
  53  * class acts as a facade for the methods in cdmlib-service.
  54  *
  55  * @author n.hoffmann
  56  * @created 17.03.2009
  57  * @version 1.0
  58  */
  59 public class CdmStore {
  60
  61         private static final Resource DEFAULT_APPLICATION_CONTEXT = new ClassPathResource(
  62                         "/eu/etaxonomy/cdm/editorApplicationContext.xml",
  63                         TaxeditorStorePlugin.class);
  64         private static final DbSchemaValidation DEFAULT_DB_SCHEMA_VALIDATION = DbSchemaValidation.VALIDATE;
  65
  66         private static CdmStore instance;
  67
  68         private final ICdmApplicationConfiguration applicationConfiguration;
  69
  70         private static ContextManager contextManager = new ContextManager();
  71
  72         private static LoginManager loginManager = new LoginManager();
  73
  74         private static TermManager termManager = new TermManager();
  75
  76         private static SearchManager searchManager = new SearchManager();
  77
  78         private static EditorManager editorManager = new EditorManager();
  79
  80         private static CdmStoreConnector job;
  81
  82         private Language language;
  83
  84         private ICdmDataSource cdmDatasource;
  85
  86         private boolean isConnected;
  87
  88         /**
  89          * <p>
  90          * getDefault
  91          * </p>
  92          *
  93          * @return a {@link eu.etaxonomy.taxeditor.store.CdmStore} object.
  94          */
  95         protected static CdmStore getDefault() {
  96                 if (instance != null && instance.isConnected) {
  97                         return instance;
  98                 } else if (instance == null || !instance.isConnected) {
  99
 100                         StoreUtil
 101                                         .warningDialog(
 102                                                         "Application is not connected to a datastore",
 103                                                         instance,
 104                                                         "The requested operation is only available when "
 105                                                                         + "connected to a datasource. You may choose a datasource to connect to or create a new one in the datasource view.");
 106
 107                         StoreUtil.showView(CdmDataSourceViewPart.ID);
 108
 109                 }
 110
 111                 throw new RuntimeException();
 112         }
 113
 114         /**
 115          * Initialize the with the last edited datasource
 116          */
 117         public static void connect() {
 118
 119                 ICdmDataSource datasource = CdmDataSourceRepository
 120                                 .getCurrentDataSource();
 121
 122                 connect(datasource);
 123         }
 124
 125         /**
 126          * Initialize with a specific datasource
 127          *
 128          * @param datasource
 129          *            a {@link eu.etaxonomy.cdm.database.ICdmDataSource} object.
 130          */
 131         public static void connect(ICdmDataSource datasource) {
 132                 connect(datasource, DEFAULT_DB_SCHEMA_VALIDATION,
 133                                 DEFAULT_APPLICATION_CONTEXT);
 134         }
 135
 136         /**
 137          * Initialize and provide
 138          *
 139          * @param datasource
 140          * @param dbSchemaValidation
 141          * @param applicationContextBean
 142          */
 143         private static void connect(final ICdmDataSource datasource,
 144                         final DbSchemaValidation dbSchemaValidation,
 145                         final Resource applicationContextBean) {
 146                 StoreUtil.info("Connecting to datasource: " + datasource);
 147
 148                 job = new CdmStoreConnector(Display.getDefault(), datasource,
 149                                 dbSchemaValidation, applicationContextBean);
 150                 job.setUser(true);
 151                 job.setPriority(Job.BUILD);
 152                 job.schedule();
 153
 154         }
 155
 156         public static boolean isConnecting() {
 157                 return job != null && job.getState() == Job.RUNNING;
 158         }
 159
 160         /**
 161          * Closes the current application context
 162          *
 163          * @param monitor
 164          *            a {@link org.eclipse.core.runtime.IProgressMonitor} object.
 165          */
 166         public static void close(final IProgressMonitor monitor) {
 167                 Display.getDefault().asyncExec(new Runnable() {
 168                         /*
 169                          * (non-Javadoc)
 170                          *
 171                          * @see java.lang.Runnable#run()
 172                          */
 173                         @Override
 174                         public void run() {
 175                                 getContextManager().notifyContextAboutToStop(monitor);
 176                                 if ((monitor == null || (!monitor.isCanceled()) && isActive())) {
 177                                         getContextManager().notifyContextStop(monitor);
 178                                         instance.close();
 179                                 }
 180                         }
 181                 });
 182         }
 183
 184         private void close() {
 185                 isConnected = false;
 186                 cdmDatasource = null;
 187         }
 188
 189         static void setInstance(ICdmApplicationConfiguration applicationController,
 190                         ICdmDataSource dataSource) {
 191                 instance = new CdmStore(applicationController, dataSource);
 192         }
 193
 194         private CdmStore(ICdmApplicationConfiguration applicationController,
 195                         ICdmDataSource dataSource) {
 196                 this.applicationConfiguration = applicationController;
 197                 this.cdmDatasource = dataSource;
 198                 isConnected = true;
 199         }
 200
 201         /**
 202          * All calls to the datastore require
 203          *
 204          * @return
 205          */
 206         private ICdmApplicationConfiguration getApplicationConfiguration() {
 207                 try {
 208                         return applicationConfiguration;
 209                 } catch (Exception e) {
 210                         StoreUtil.error(CdmStore.class, e);
 211                 }
 212                 return null;
 213         }
 214
 215         /**
 216          * <p>
 217          * getCurrentApplicationController
 218          * </p>
 219          *
 220          * @return a
 221          *         {@link eu.etaxonomy.cdm.remote.api.application.CdmApplicationController}
 222          *         object.
 223          */
 224         public static ICdmApplicationConfiguration getCurrentApplicationConfiguration() {
 225                 if (getDefault() != null) {
 226                         return getDefault().getApplicationConfiguration();
 227                 }
 228                 return null;
 229         }
 230
 231         /*
 232          * CONVERSATIONS
 233          */
 234
 235         /**
 236          * Creates a new conversation, binds resources to the conversation and start
 237          * a transaction for this conversation.
 238          *
 239          * @return a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder}
 240          *         object.
 241          */
 242         public static ConversationHolder createConversation() {
 243                 ConversationHolder conversation = getCurrentApplicationConfiguration()
 244                                 .NewConversation();
 245                 try{
 246                         conversation.startTransaction();
 247                 }catch(Exception e){
 248                         StoreUtil.errorDialog("No database connection", CdmStore.class, "No database connection available", e);
 249                 }
 250                 return conversation;
 251         }
 252
 253         /**
 254          * Generic method that will scan the getters of {@link ICdmApplicationConfiguration} for the given service
 255          * interface. If a matching getter is found the according service implementation is returned by
 256          * invoking the getter otherwise the method returns <code>null</code>.
 257          *
 258          * @param <T>
 259          * @param serviceClass
 260          * @return the configured implementation of <code>serviceClass</code> or <code>null</code>
 261          */
 262         public static <T extends IService> T getService(Class<T> serviceClass) {
 263                 ICdmApplicationConfiguration configuration = getCurrentApplicationConfiguration();
 264
 265                 Method[] methods = ICdmApplicationConfiguration.class.getDeclaredMethods();
 266
 267                 T service = null;
 268
 269                 for (Method method : methods) {
 270                         Type type = method.getGenericReturnType();
 271
 272                         if (type.equals(serviceClass)) {
 273                                 try {
 274                                         service = (T) method.invoke(configuration, null);
 275                                         break;
 276                                 } catch (IllegalArgumentException e) {
 277                                         StoreUtil.error(CdmStore.class, e);
 278                                 } catch (IllegalAccessException e) {
 279                                         StoreUtil.error(CdmStore.class, e);
 280                                 } catch (InvocationTargetException e) {
 281                                         StoreUtil.error(CdmStore.class, e);
 282                                 }
 283                         }
 284                 }
 285
 286                 return service;
 287         }
 288
 289         /**
 290          * <p>
 291          * getAuthenticationManager
 292          * </p>
 293          *
 294          * @return a
 295          *         {@link org.springframework.security.authentication.ProviderManager}
 296          *         object.
 297          */
 298         public static ProviderManager getAuthenticationManager() {
 299                 return getCurrentApplicationConfiguration().getAuthenticationManager();
 300         }
 301
 302         /**
 303          * <p>
 304          * getAuthenticationManager
 305          * </p>
 306          *
 307          * @return a
 308          *         {@link ICdmPermissionEvaluator} object.
 309          */
 310         public static ICdmPermissionEvaluator getPermissionEvaluator() {
 311                 return getCurrentApplicationConfiguration().getPermissionEvaluator();
 312         }
 313
 314         /**
 315          * <p>
 316          * getGeoService
 317          * </p>
 318          *
 319          * @return a {@link eu.etaxonomy.cdm.ext.geo.IEditGeoService} object.
 320          */
 321         public static IEditGeoService getGeoService() {
 322                 return (IEditGeoService) getCurrentApplicationConfiguration().getBean(
 323                                 "editGeoService");
 324         }
 325
 326         /*
 327          * SECURITY RELATED CONVENIENCE METHODS
 328          */
 329
 330         /**
 331          * @see org.springframework.security.access.PermissionEvaluator#hasPermission(org.springframework.security.core.Authentication, java.lang.Object, java.lang.Object)
 332      *
 333          * @param targetDomainObject
 334          * @param permission
 335          * @return
 336          */
 337         public static boolean currentAuthentiationHasPermission(CdmBase targetDomainObject, EnumSet<CRUD> permission){
 338                 //TODO use getCurrentApplicationConfiguration().currentAuthentiationHasPermission(CdmBase targetDomainObject, Operation permission) instead
 339                 SecurityContext context = SecurityContextHolder.getContext();
 340                 PermissionEvaluator pe = getPermissionEvaluator();
 341                 return getPermissionEvaluator().hasPermission(context.getAuthentication(), targetDomainObject, permission);
 342         }
 343
 344         /**
 345          * @see org.springframework.security.access.PermissionEvaluator#hasPermission(org.springframework.security.core.Authentication, java.lang.Object, java.lang.Object)
 346      *
 347          * @param targetDomainObject
 348          * @param permission
 349          * @return
 350          */
 351         public static boolean currentAuthentiationHasPermission(Class<? extends CdmBase> targetType, EnumSet<CRUD> permission){
 352                 return getPermissionEvaluator().hasPermission(getCurrentAuthentiation(), null, targetType.getName(), permission);
 353         }
 354
 355         public static boolean currentAuthentiationHasOneOfRoles(Role ... roles){
 356                 return getPermissionEvaluator().hasOneOfRoles(getCurrentAuthentiation(), roles);
 357         }
 358
 359         public static Authentication getCurrentAuthentiation() {
 360                 SecurityContext context = SecurityContextHolder.getContext();
 361                 return context.getAuthentication();
 362         }
 363
 364         /*
 365          * LANGUAGE
 366          */
 367
 368         /**
 369          * <p>
 370          * getDefaultLanguage
 371          * </p>
 372          *
 373          * @return a {@link eu.etaxonomy.cdm.model.common.Language} object.
 374          */
 375         public static Language getDefaultLanguage() {
 376                 if (getDefault().getLanguage() == null) {
 377                         getDefault().setLanguage(PreferencesUtil.getGlobalLanguage());
 378                 }
 379                 return getDefault().getLanguage();
 380         }
 381
 382         /**
 383          * <p>
 384          * setDefaultLanguage
 385          * </p>
 386          *
 387          * @param language
 388          *            a {@link eu.etaxonomy.cdm.model.common.Language} object.
 389          */
 390         public static void setDefaultLanguage(Language language) {
 391                 getDefault().setLanguage(language);
 392         }
 393
 394         /**
 395          * @return the language
 396          */
 397         private Language getLanguage() {
 398                 return language;
 399         }
 400
 401         /**
 402          * @param language
 403          *            the language to set
 404          */
 405         private void setLanguage(Language language) {
 406                 this.language = language;
 407         }
 408
 409         /*
 410          * LOGIN
 411          */
 412
 413         /**
 414          * <p>
 415          * Getter for the field <code>loginManager</code>.
 416          * </p>
 417          *
 418          * @return a {@link eu.etaxonomy.taxeditor.store.LoginManager} object.
 419          */
 420         public static LoginManager getLoginManager() {
 421                 return loginManager;
 422         }
 423
 424         /**
 425          * <p>
 426          * Getter for the field <code>contextManager</code>.
 427          * </p>
 428          *
 429          * @return a {@link eu.etaxonomy.taxeditor.store.ContextManager} object.
 430          */
 431         public static ContextManager getContextManager() {
 432                 return contextManager;
 433         }
 434
 435         public static TermManager getTermManager() {
 436                 return termManager;
 437         }
 438
 439         public static SearchManager getSearchManager() {
 440                 return searchManager;
 441         }
 442
 443         public static EditorManager getEditorManager() {
 444                 return editorManager;
 445         }
 446
 447         /*
 448          * IMPORT/EXPORT FACTORIES
 449          */
 450
 451         /**
 452          * <p>
 453          * Getter for the field <code>importHandler</code>.
 454          * </p>
 455          *
 456          * @return a {@link eu.etaxonomy.taxeditor.io.ImportManager} object.
 457          */
 458         public static ImportManager getImportManager() {
 459                 return ImportManager.NewInstance(getCurrentApplicationConfiguration());
 460         }
 461
 462         /**
 463          * <p>
 464          * Getter for the field <code>exportHandler</code>.
 465          * </p>
 466          *
 467          * @return a {@link eu.etaxonomy.taxeditor.io.ExportManager} object.
 468          */
 469         public static ExportManager getExportManager() {
 470                 return ExportManager.NewInstance(getCurrentApplicationConfiguration());
 471         }
 472
 473         /**
 474          * Whether this CdmStore is currently connected to a datasource
 475          *
 476          * @return a boolean.
 477          */
 478         public static boolean isActive() {
 479                 return instance != null && instance.isConnected;
 480         }
 481
 482         /**
 483          * <p>
 484          * getDataSource
 485          * </p>
 486          *
 487          * @return a {@link eu.etaxonomy.cdm.database.ICdmDataSource} object.
 488          */
 489         public static ICdmDataSource getDataSource() {
 490                 if (isActive()) {
 491                         return instance.getDatasource();
 492                 }
 493                 return null;
 494         }
 495
 496         /**
 497          * @return
 498          */
 499         private ICdmDataSource getDatasource() {
 500                 return cdmDatasource;
 501         }
 502
 503 }