eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/preference/PreferencesUtil.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.preference;
  11
  12 import java.io.File;
  13 import java.io.FileInputStream;
  14 import java.io.FileOutputStream;
  15 import java.io.IOException;
  16 import java.net.URI;
  17 import java.net.URISyntaxException;
  18 import java.util.ArrayList;
  19 import java.util.Arrays;
  20 import java.util.HashMap;
  21 import java.util.List;
  22 import java.util.Map;
  23 import java.util.Properties;
  24 import java.util.Set;
  25 import java.util.StringTokenizer;
  26 import java.util.UUID;
  27
  28 import org.apache.commons.lang.StringUtils;
  29 import org.eclipse.equinox.internal.p2.ui.model.MetadataRepositoryElement;
  30 import org.eclipse.jface.preference.IPreferenceStore;
  31 import org.eclipse.swt.widgets.Shell;
  32 import org.eclipse.ui.PlatformUI;
  33
  34 import eu.etaxonomy.cdm.api.facade.DerivedUnitFacadeConfigurator;
  35 import eu.etaxonomy.cdm.api.service.IFeatureTreeService;
  36 import eu.etaxonomy.cdm.api.service.ITermService;
  37 import eu.etaxonomy.cdm.api.service.config.FindTaxaAndNamesConfiguratorImpl;
  38 import eu.etaxonomy.cdm.api.service.config.IFindTaxaAndNamesConfigurator;
  39 import eu.etaxonomy.cdm.common.CdmUtils;
  40 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  41 import eu.etaxonomy.cdm.model.common.ICdmBase;
  42 import eu.etaxonomy.cdm.model.common.IDefinedTerm;
  43 import eu.etaxonomy.cdm.model.common.ISimpleTerm;
  44 import eu.etaxonomy.cdm.model.common.Language;
  45 import eu.etaxonomy.cdm.model.common.MarkerType;
  46 import eu.etaxonomy.cdm.model.common.TermBase;
  47 import eu.etaxonomy.cdm.model.description.FeatureTree;
  48 import eu.etaxonomy.cdm.model.name.NomenclaturalCode;
  49 import eu.etaxonomy.cdm.strategy.match.DefaultMatchStrategy;
  50 import eu.etaxonomy.cdm.strategy.match.IMatchStrategy;
  51 import eu.etaxonomy.cdm.strategy.match.MatchException;
  52 import eu.etaxonomy.cdm.strategy.match.MatchMode;
  53 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  54 import eu.etaxonomy.taxeditor.model.NomenclaturalCodeHelper;
  55 import eu.etaxonomy.taxeditor.store.CdmStore;
  56 import eu.etaxonomy.taxeditor.store.StoreUtil;
  57 import eu.etaxonomy.taxeditor.store.internal.TaxeditorStorePlugin;
  58 import eu.etaxonomy.taxeditor.ui.dialog.DefaultLanguageDialog;
  59
  60 /**
  61  * <p>
  62  * PreferencesUtil class.
  63  * </p>
  64  *
  65  * @author p.ciardelli
  66  * @author n.hoffmann
  67  * @created 05.12.2008
  68  * @version 1.0
  69  */
  70 public class PreferencesUtil implements IPreferenceKeys {
  71
  72         /**
  73          *
  74          */
  75         public static final String PREFERRED_TERMS_CHANGE = "preferred_terms";
  76
  77         public static final String P2_REPOSITORIES_DELIM = ",";
  78         public static final String P2_REPOSITORY_FIELDS_DELIM = ";";
  79
  80         /**
  81          * <p>
  82          * getPreferenceStore
  83          * </p>
  84          *
  85          * @return a {@link org.eclipse.jface.preference.IPreferenceStore} object.
  86          */
  87         public static IPreferenceStore getPreferenceStore() {
  88                 return TaxeditorStorePlugin.getDefault().getPreferenceStore();
  89         }
  90
  91         /**
  92          * <p>
  93          * setPreferredNomenclaturalCode
  94          * </p>
  95          *
  96          * @param preferredCode
  97          *            a {@link eu.etaxonomy.cdm.model.name.NomenclaturalCode}
  98          *            object.
  99          */
 100         public static void setPreferredNomenclaturalCode(
 101                         NomenclaturalCode preferredCode) {
 102                 getPreferenceStore().setValue(PREFERRED_NOMENCLATURAL_CODE_KEY,
 103                                 getPreferenceKey(preferredCode));
 104         }
 105
 106         /**
 107          * <p>
 108          * getPreferredNomenclaturalCode
 109          * </p>
 110          *
 111          * @return a {@link eu.etaxonomy.cdm.model.name.NomenclaturalCode} object.
 112          */
 113         public static NomenclaturalCode getPreferredNomenclaturalCode() {
 114
 115                 for (NomenclaturalCode code : NomenclaturalCodeHelper.getAllCodes()) {
 116                         String preferredCode = getPreferenceStore().getString(
 117                                         PREFERRED_NOMENCLATURAL_CODE_KEY);
 118                         if (getPreferenceKey(code).equals(preferredCode)) {
 119                                 return code;
 120                         }
 121                 }
 122                 return null;
 123         }
 124
 125         public static String getPreferredDefaultLangugae(){
 126             String preferredLanguage = getPreferenceStore().getString(DEFAULT_LANGUAGE_EDITOR);
 127             if(StringUtils.isNotEmpty(preferredLanguage) && StringUtils.isNotBlank(preferredLanguage)){
 128                 return preferredLanguage;
 129             }
 130             return null;
 131         }
 132
 133         /**
 134          * Get the match strategy for the given class that was stored in preferences
 135          * or the default strategy if it was not stored in preferences
 136          *
 137          * @param clazz
 138          *            a {@link java.lang.Class} object.
 139          * @return a {@link eu.etaxonomy.cdm.strategy.match.IMatchStrategy} object.
 140          */
 141         public static IMatchStrategy getMatchStrategy(Class clazz) {
 142                 String className = clazz.getName();
 143                 if (getPreferenceStore().getBoolean(MATCH_STRATEGY_PREFIX + className)) {
 144                         IMatchStrategy matchStrategy = getDefaultMatchStrategy(clazz);
 145
 146                         for (String fieldName : matchStrategy.getMatchFieldPropertyNames()) {
 147                                 String matchModeName = getPreferenceStore().getString(
 148                                                 getMatchStrategyFieldName(className, fieldName));
 149                                 MatchMode matchMode = MatchMode.valueOf(matchModeName);
 150                                 try {
 151                                         matchStrategy.setMatchMode(fieldName, matchMode);
 152                                 } catch (MatchException e) {
 153                                         MessagingUtils.error(PreferencesUtil.class, e);
 154                                         throw new RuntimeException(e);
 155                                 }
 156                         }
 157
 158                         return matchStrategy;
 159                 }
 160                 return getDefaultMatchStrategy(clazz);
 161         }
 162
 163         /**
 164          * Stores a matchStrategy into the preference store.
 165          *
 166          * @param matchStrategy
 167          *            a {@link eu.etaxonomy.cdm.strategy.match.IMatchStrategy}
 168          *            object.
 169          */
 170         public static void setMatchStrategy(IMatchStrategy matchStrategy) {
 171                 String className = matchStrategy.getMatchClass().getName();
 172                 getPreferenceStore().setValue(MATCH_STRATEGY_PREFIX + className, true);
 173
 174                 Set<String> matchFields = matchStrategy.getMatchFieldPropertyNames();
 175
 176                 for (String fieldName : matchFields) {
 177                         getPreferenceStore().setValue(
 178                                         getMatchStrategyFieldName(className, fieldName),
 179                                         matchStrategy.getMatchMode(fieldName).name());
 180                 }
 181         }
 182
 183         /**
 184          * Helper method to create the preference property for a match field.
 185          *
 186          * @param className
 187          * @param fieldName
 188          * @return
 189          */
 190         private static String getMatchStrategyFieldName(String className,
 191                         String fieldName) {
 192                 return MATCH_STRATEGY_PREFIX + className + "." + fieldName;
 193         }
 194
 195         /**
 196          * Returns the default match strategy for a given class.
 197          *
 198          * @param clazz
 199          *            a {@link java.lang.Class} object.
 200          * @return a {@link eu.etaxonomy.cdm.strategy.match.IMatchStrategy} object.
 201          */
 202         public static IMatchStrategy getDefaultMatchStrategy(Class clazz) {
 203                 return DefaultMatchStrategy.NewInstance(clazz);
 204         }
 205
 206         /**
 207          * <p>
 208          * getDateFormatPattern
 209          * </p>
 210          *
 211          * @return a {@link java.lang.String} object.
 212          */
 213         public static String getDateFormatPattern() {
 214                 // TODO make this configurable in properties
 215                 String pattern = "Y-M-d H:m";
 216                 return pattern;
 217         }
 218
 219         /**
 220          * <p>
 221          * addTermToPreferredTerms
 222          * </p>
 223          *
 224          * @param term
 225          *            a T object.
 226          * @param <T>
 227          *            a T object.
 228          */
 229         public static <T extends TermBase> void addTermToPreferredTerms(T term) {
 230
 231                 // VocabularyEnum vocabulary =
 232                 // VocabularyEnum.getVocabularyEnum(term.getClass());
 233                 //
 234                 // getPreferenceStore().setValue(getPreferenceKey(term),
 235                 // VocabularyStore.getTermVocabulary(vocabulary).getTerms().contains(term));
 236                 //
 237                 // firePreferencesChanged(term.getClass());
 238         }
 239
 240         /**
 241          * Construct a unique key using the CdmBase object's uuid
 242          *
 243          * @param cdmBase
 244          * @return
 245          */
 246         private static String getPreferenceKey(ICdmBase cdmBase) {
 247                 cdmBase = (ICdmBase) HibernateProxyHelper.deproxy(cdmBase);
 248
 249                 String key = cdmBase.getClass().getName().concat(".")
 250                                 .concat(cdmBase.getUuid().toString());
 251                 if (key.contains("javassist")) {
 252                         MessagingUtils.info("proxy");
 253                 }
 254                 return key;
 255         }
 256
 257         /**
 258          * Construct a unique key using the CdmBase object's uuid
 259          *
 260          * @param cdmBase
 261          * @return
 262          */
 263         public static String getPreferenceKey(ISimpleTerm simpleTerm) {
 264                 simpleTerm = (ISimpleTerm) HibernateProxyHelper.deproxy(simpleTerm);
 265                 String key = simpleTerm.getClass().getName().concat(".")
 266                                 .concat(simpleTerm.getUuid().toString());
 267                 if (key.contains("javassist")) {
 268                         MessagingUtils.warn(PreferencesUtil.class,
 269                                         "Trying to persist a preference based on a proxy class.");
 270                 }
 271                 return key;
 272         }
 273
 274
 275
 276         /**
 277          * Construct a unique key using the CdmBase object's uuid
 278          *
 279          * @param cdmBase
 280          * @return
 281          */
 282         public static String getPreferenceKey(IDefinedTerm definedTerm) {
 283                 definedTerm = (IDefinedTerm) HibernateProxyHelper.deproxy(definedTerm);
 284                 String key = definedTerm.getClass().getName().concat(".")
 285                                 .concat(definedTerm.getUuid().toString());
 286                 if (key.contains("javassist")) {
 287                         MessagingUtils.warn(PreferencesUtil.class,
 288                                         "Trying to persist a preference based on a proxy class.");
 289                 }
 290                 return key;
 291         }
 292
 293         /**
 294          * Retrieves search preferences from the preference store
 295          *
 296          * @return an {@link ITaxonServiceConfigurator} to pass to search methods
 297          */
 298         public static IFindTaxaAndNamesConfigurator getSearchConfigurator() {
 299                 IFindTaxaAndNamesConfigurator configurator = initializeSearchConfigurator();
 300
 301                 configurator.setDoTaxa(getPreferenceStore().getBoolean(
 302                                 TAXON_SERVICE_CONFIGURATOR_TAXA));
 303                 configurator.setDoSynonyms(getPreferenceStore().getBoolean(
 304                                 TAXON_SERVICE_CONFIGURATOR_SYNONYMS));
 305                 configurator.setDoNamesWithoutTaxa(getPreferenceStore().getBoolean(
 306                                 TAXON_SERVICE_CONFIGURATOR_NAMES));
 307                 configurator.setDoTaxaByCommonNames(getPreferenceStore().getBoolean(
 308                                 TAXON_SERVICE_CONFIGURATOR_COMMON_NAMES));
 309
 310                 return configurator;
 311         }
 312
 313         /**
 314          * create new preferences, setting all search options to true
 315          *
 316          * @return a
 317          *         {@link eu.etaxonomy.cdm.api.service.config.ITaxonServiceConfigurator}
 318          *         object.
 319          */
 320         public static IFindTaxaAndNamesConfigurator initializeSearchConfigurator() {
 321                 IFindTaxaAndNamesConfigurator configurator = new FindTaxaAndNamesConfiguratorImpl();
 322
 323                 configurator.setDoTaxa(true);
 324                 configurator.setDoSynonyms(true);
 325                 configurator.setDoNamesWithoutTaxa(true);
 326                 configurator.setDoTaxaByCommonNames(true);
 327
 328                 configurator.setTaxonPropertyPath(Arrays.asList("$", "titleCache",
 329                                 "name", "name.$", "relationsFromThisTaxon.$"));
 330
 331                 configurator.setSynonymPropertyPath(Arrays.asList("$", "titleCache",
 332                                 "name", "name.$", "synonymRelations.relatedTo.*"));
 333
 334                 // DEFAULT VALUES
 335                 // match mode is a simple like, actually all other match modes are kind
 336                 // of bogus
 337                 configurator
 338                                 .setMatchMode(eu.etaxonomy.cdm.persistence.query.MatchMode.ANYWHERE);
 339                 // we set page number and size here as this should always be unlimited
 340                 configurator.setPageNumber(0);
 341                 // TODO currently limit results to 10000
 342                 configurator.setPageSize(10000);
 343
 344                 return configurator;
 345         }
 346
 347         /**
 348          * Store search preferences
 349          *
 350          * @param configurator
 351          *            a
 352          *            {@link eu.etaxonomy.cdm.api.service.config.ITaxonServiceConfigurator}
 353          *            object.
 354          */
 355         public static void setSearchConfigurator(
 356                         IFindTaxaAndNamesConfigurator configurator) {
 357                 getPreferenceStore().setValue(TAXON_SERVICE_CONFIGURATOR_TAXA,
 358                                 configurator.isDoTaxa());
 359                 getPreferenceStore().setValue(TAXON_SERVICE_CONFIGURATOR_SYNONYMS,
 360                                 configurator.isDoSynonyms());
 361                 getPreferenceStore().setValue(TAXON_SERVICE_CONFIGURATOR_NAMES,
 362                                 configurator.isDoNamesWithoutTaxa());
 363                 getPreferenceStore().setValue(TAXON_SERVICE_CONFIGURATOR_COMMON_NAMES,
 364                                 configurator.isDoTaxaByCommonNames());
 365         }
 366
 367         /**
 368          * <p>
 369          * firePreferencesChanged
 370          * </p>
 371          *
 372          * @param clazz
 373          *            a {@link java.lang.Class} object.
 374          */
 375         public static void firePreferencesChanged(Class clazz) {
 376                 getPreferenceStore().firePropertyChangeEvent(PREFERRED_TERMS_CHANGE,
 377                                 null, clazz);
 378         }
 379
 380         /**
 381          * Set default values for preferences
 382          */
 383         public static void setDefaults() {
 384                 getPreferenceStore().setDefault(TAXON_SERVICE_CONFIGURATOR_TAXA, true);
 385                 getPreferenceStore().setDefault(TAXON_SERVICE_CONFIGURATOR_SYNONYMS,
 386                                 true);
 387                 getPreferenceStore().setDefault(EDIT_MAP_SERVICE_ACCES_POINT,
 388                                 "http://edit.africamuseum.be/edit_wp5/v1.2/rest_gen.php");
 389                 //FIXME : changed default for SHOULD_CONNECT_AT_STARTUP to false (ticket 3828) until resolution
 390                 getPreferenceStore().setDefault(SHOULD_CONNECT_AT_STARTUP, false);
 391                 getPreferenceStore().setDefault(OPENURL_ACCESS_POINT,
 392                                 "http://www.biodiversitylibrary.org/openurl");
 393                 getPreferenceStore().setDefault(OPENURL_IMAGE_MAX_WIDTH, "1000");
 394                 getPreferenceStore().setDefault(OPENURL_IMAGE_MAX_HEIGHT, "1000");
 395         }
 396
 397         /**
 398          * <p>
 399          * checkNomenclaturalCode
 400          * </p>
 401          */
 402         public static void checkNomenclaturalCode() {
 403                 // First time Editor is opened, no nomenclatural code has been set
 404
 405
 406                 if (PreferencesUtil.getPreferredNomenclaturalCode() == null) {
 407                         PreferencesUtil.setPreferredNomenclaturalCode(NomenclaturalCode.ICNAFP);
 408                         /*
 409
 410                         StoreUtil.info("No nomencatural code set.");
 411
 412                         Shell shell = StoreUtil.getShell();
 413
 414                  Query user re: preferred nom. code
 415                         Dialog dialog = new InitNomenclaturalCodePrefDialog(shell);
 416                         dialog.open();
 417
 418                         // Short message confirming user's choice
 419                         NomenclaturalCode code = PreferencesUtil
 420                                         .getPreferredNomenclaturalCode();
 421                         MessageDialog
 422                                         .openInformation(
 423                                                         shell,
 424                                                         "Nomenclatural code set",
 425                                                         "The following has been set as your preferred nomenclatural code:\n\n\t"
 426                                                                         + NomenclaturalCodeHelper
 427                                                                                         .getDescription(code)
 428                                                                         + "\n\nYou can change the nomenclatural code at any time in the \"Preferences\" menu.");*/
 429                 }
 430         }
 431
 432         public static void checkDefaultLanguage(){
 433             if(PreferencesUtil.getPreferredDefaultLangugae() == null){
 434                Shell shell = StoreUtil.getShell();
 435                int open = new DefaultLanguageDialog(shell).open();
 436                if(open == 0){//FIXME:window performed ok. Find variable for it
 437                    PlatformUI.getWorkbench().restart();
 438                }
 439             }else{
 440                 //TODO:In case of a reinstall, the config.ini will be overwritten
 441                 //     here you create config.ini with the stored key from preferences
 442             }
 443         }
 444
 445         /**
 446          * <p>
 447          * getMapServiceAccessPoint
 448          * </p>
 449          *
 450          * @return a {@link java.lang.String} object.
 451          */
 452         public static String getMapServiceAccessPoint() {
 453                 return getPreferenceStore().getString(EDIT_MAP_SERVICE_ACCES_POINT);
 454         }
 455
 456         /**
 457          * <p>
 458          * shouldConnectAtStartUp
 459          * </p>
 460          *
 461          * @return a boolean.
 462          */
 463         public static boolean shouldConnectAtStartUp() {
 464                 //FIXME :  force SHOULD_CONNECT_AT_STARTUP to false (ticket 3828) until resolution
 465                 //return getPreferenceStore().getBoolean(SHOULD_CONNECT_AT_STARTUP);
 466                 return false;
 467         }
 468
 469         /**
 470          * <p>
 471          * getDefaultFeatureTreeForTextualDescription
 472          * </p>
 473          *
 474          * @return a {@link eu.etaxonomy.cdm.model.description.FeatureTree} object.
 475          */
 476         public static FeatureTree getDefaultFeatureTreeForTextualDescription() {
 477                 String uuidString = getPreferenceStore().getString(
 478                                 FEATURE_TREE_DEFAULT_TEXT);
 479                 return CdmUtils.isEmpty(uuidString) ? null : CdmStore.getService(
 480                                 IFeatureTreeService.class).load(UUID.fromString(uuidString));
 481         }
 482
 483         /**
 484          * <p>
 485          * getDefaultFeatureTreeForStructuredDescription
 486          * </p>
 487          *
 488          * @return a {@link eu.etaxonomy.cdm.model.description.FeatureTree} object.
 489          */
 490         public static FeatureTree getDefaultFeatureTreeForStructuredDescription() {
 491                 String uuidString = getPreferenceStore().getString(
 492                                 FEATURE_TREE_DEFAULT_STRUCTURE);
 493                 return CdmUtils.isEmpty(uuidString) ? null : CdmStore.getService(
 494                                 IFeatureTreeService.class).load(UUID.fromString(uuidString));
 495         }
 496
 497         /**
 498          * <p>
 499          * setSortRanksHierarchichally
 500          * </p>
 501          *
 502          * @param selection
 503          *            a boolean.
 504          */
 505         public static void setSortRanksHierarchichally(boolean selection) {
 506                 getPreferenceStore().setValue(SORT_RANKS_HIERARCHICHALLY, selection);
 507         }
 508
 509         /**
 510          * <p>
 511          * getSortRanksHierarchichally
 512          * </p>
 513          *
 514          * @return a boolean.
 515          */
 516         public static boolean getSortRanksHierarchichally() {
 517                 return getPreferenceStore().getBoolean(SORT_RANKS_HIERARCHICHALLY);
 518         }
 519
 520         public static boolean isMultilanguageTextEditingCapability() {
 521                 return getPreferenceStore().getBoolean(
 522                                 MULTILANGUAGE_TEXT_EDITING_CAPABILITY);
 523         }
 524
 525         public static Language getGlobalLanguage() {
 526                 String languageUuidString = getPreferenceStore().getString(
 527                                 GLOBAL_LANGUAGE_UUID);
 528
 529                 if (CdmUtils.isBlank(languageUuidString)) {
 530                         return Language.getDefaultLanguage();
 531                 }
 532
 533                 UUID languageUuid = UUID.fromString(languageUuidString);
 534                 return (Language) CdmStore.getService(ITermService.class).load(
 535                                 languageUuid);
 536         }
 537
 538         public static void setGlobalLanguage(Language language) {
 539                 getPreferenceStore().setValue(GLOBAL_LANGUAGE_UUID,
 540                                 language.getUuid().toString());
 541                 CdmStore.setDefaultLanguage(language);
 542         }
 543
 544         /**
 545          * @return
 546          */
 547         public static Map<MarkerType, Boolean> getEditMarkerTypePreferences() {
 548                 List<MarkerType> markerTypes = CdmStore.getTermManager()
 549                                 .getPreferredTerms(MarkerType.class);
 550
 551                 Map<MarkerType, Boolean> result = new HashMap<MarkerType, Boolean>();
 552
 553                 for (MarkerType markerType : markerTypes) {
 554                         String name = getMarkerTypeEditingPreferenceKey(markerType);
 555                         Boolean value = getPreferenceStore().getBoolean(name);
 556
 557                         result.put(markerType, value);
 558                 }
 559
 560                 return result;
 561         }
 562
 563         /**
 564          * @param markerTypeEditingMap
 565          */
 566         public static void setEditMarkerTypePreferences(
 567                         Map<MarkerType, Boolean> markerTypeEditingMap) {
 568                 for (MarkerType markerType : markerTypeEditingMap.keySet()) {
 569                         String name = getMarkerTypeEditingPreferenceKey(markerType);
 570                         getPreferenceStore().setValue(name,
 571                                         markerTypeEditingMap.get(markerType));
 572                 }
 573
 574         }
 575
 576         private static String getMarkerTypeEditingPreferenceKey(
 577                         MarkerType markerType) {
 578                 markerType = (MarkerType) HibernateProxyHelper.deproxy(markerType);
 579                 return markerType.getClass().getName() + EDIT_MARKER_TYPE_PREFIX;
 580         }
 581
 582         /**
 583          * <p>
 584          * setEditMarkerTypePreference
 585          * </p>
 586          *
 587          * @param input
 588          *            a {@link org.eclipse.ui.IEditorInput} object.
 589          * @param markerType
 590          *            a {@link eu.etaxonomy.cdm.model.common.MarkerType} object.
 591          * @param edit
 592          *            a boolean.
 593          */
 594         public static void setEditMarkerTypePreference(MarkerType markerType,
 595                         boolean edit) {
 596                 getPreferenceStore().setValue(
 597                                 getMarkerTypeEditingPreferenceKey(markerType), edit);
 598         }
 599
 600         /**
 601          * @return
 602          */
 603         public static DerivedUnitFacadeConfigurator getDerivedUnitConfigurator() {
 604                 DerivedUnitFacadeConfigurator configurator = DerivedUnitFacadeConfigurator
 605                                 .NewInstance();
 606                 configurator.setMoveDerivedUnitMediaToGallery(true);
 607                 configurator.setMoveFieldObjectMediaToGallery(true);
 608                 return configurator;
 609         }
 610
 611         /**
 612          * This method will write language properties to the config.ini located in the configuration folder
 613          * of the Taxonomic Ediitor. <b>This method is only used to set the default language for Taxonomic Editor.</b>
 614          *
 615          * @param setLanguage 0 is for german and 1 for english.
 616          * @throws IOException
 617          */
 618     public void writePropertyToConfigFile(int setLanguage) throws IOException {
 619         File file = org.eclipse.core.runtime.preferences.ConfigurationScope.INSTANCE.getLocation().toFile();
 620         Properties properties = load(file.getAbsolutePath()+"/config.ini");
 621         switch(setLanguage){
 622         case 0:
 623             properties.setProperty("osgi.nl", "de");
 624             PreferencesUtil.getPreferenceStore().setValue(IPreferenceKeys.DEFAULT_LANGUAGE_EDITOR, "de");
 625             break;
 626         case 1:
 627             properties.setProperty("osgi.nl", "en");
 628             PreferencesUtil.getPreferenceStore().setValue(IPreferenceKeys.DEFAULT_LANGUAGE_EDITOR, "en");
 629             break;
 630         default:
 631             break;
 632         }
 633         save(file+"/config.ini", properties);
 634     }
 635
 636     /**
 637      * This method loads a property from a given file and returns it.
 638      *
 639      * @param filename
 640      * @return
 641      * @throws IOException
 642      */
 643     private Properties load(String filename) throws IOException {
 644         FileInputStream in = new FileInputStream(filename);
 645         Properties prop = new Properties();
 646         prop.load(in);
 647         in.close();
 648         return prop;
 649     }
 650
 651     /**
 652      * This method saves a property to the specified file.
 653      *
 654      * @param filename
 655      * @param properties
 656      * @throws IOException
 657      */
 658     private void save(String filename, Properties properties) throws IOException{
 659         FileOutputStream fos =  new FileOutputStream(filename);
 660         properties.store(fos, "");
 661         fos.close();
 662     }
 663
 664     /**
 665      * Saves a list of P2 Metadata Repositories as string with specified delimiters
 666      *
 667      * @param p2Repos
 668      */
 669     public static void setP2Repositories(List<MetadataRepositoryElement> p2Repos) {
 670         StringBuilder sb = new StringBuilder();
 671         for(MetadataRepositoryElement p2Repo : p2Repos) {
 672             sb.append(P2_REPOSITORIES_DELIM);
 673             sb.append(p2Repo.getName());
 674             sb.append(P2_REPOSITORY_FIELDS_DELIM);
 675             sb.append(p2Repo.getLocation().toString());
 676             sb.append(P2_REPOSITORY_FIELDS_DELIM);
 677             sb.append(String.valueOf(p2Repo.isEnabled()));
 678         }
 679         getPreferenceStore().setValue(P2_REPOSITORY_LIST, sb.toString());
 680     }
 681
 682
 683     /**
 684      * Retrieves a list of previously saved P2 repositories
 685      *
 686      * @return
 687      */
 688     public static List<MetadataRepositoryElement> getP2Repositories() {
 689         List<MetadataRepositoryElement> p2Repos = new ArrayList<MetadataRepositoryElement>();
 690         String p2ReposPref =  getPreferenceStore().getString(P2_REPOSITORY_LIST);
 691         if(p2ReposPref != null && !p2ReposPref.isEmpty()) {
 692             StringTokenizer p2ReposPrefST = new StringTokenizer(p2ReposPref,P2_REPOSITORIES_DELIM);
 693             while(p2ReposPrefST.hasMoreTokens()) {
 694                 String p2RepoStr = p2ReposPrefST.nextToken();
 695                 StringTokenizer p2ReposStrST = new StringTokenizer(p2RepoStr,P2_REPOSITORY_FIELDS_DELIM);
 696                 String nickname = p2ReposStrST.nextToken();
 697                 URI uri = null;
 698                 try {
 699                     uri = new URI(p2ReposStrST.nextToken());
 700                 } catch (URISyntaxException e) {
 701                     continue;
 702                 }
 703                 boolean enabled = Boolean.parseBoolean(p2ReposStrST.nextToken());
 704                 MetadataRepositoryElement mre = new MetadataRepositoryElement(null, uri, true);
 705                 mre.setNickname(nickname);
 706                 mre.setEnabled(enabled);
 707                 p2Repos.add(mre);
 708             }
 709         }
 710
 711         return p2Repos;
 712     }
 713 }