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   1 /**     \r
   2  * RelationUtilsNuxeoImpl.java\r
   3  *\r
   4  * {Purpose of This Class}\r
   5  *\r
   6  * {Other Notes Relating to This Class (Optional)}\r
   7  *\r
   8  * $LastChangedBy: $\r
   9  * $LastChangedRevision: $\r
  10  * $LastChangedDate: $\r
  11  *\r
  12  * This document is a part of the source code and related artifacts\r
  13  * for CollectionSpace, an open source collections management system\r
  14  * for museums and related institutions:\r
  15  *\r
  16  * http://www.collectionspace.org\r
  17  * http://wiki.collectionspace.org\r
  18  *\r
  19  * Copyright © 2009 {Contributing Institution}\r
  20  *\r
  21  * Licensed under the Educational Community License (ECL), Version 2.0.\r
  22  * You may not use this file except in compliance with this License.\r
  23  *\r
  24  * You may obtain a copy of the ECL 2.0 License at\r
  25  * https://source.collectionspace.org/collection-space/LICENSE.txt\r
  26  */\r
  27 package org.collectionspace.services.common.relation.nuxeo;\r
  28 \r
  29 import java.io.IOException;\r
  30 import java.io.Serializable;\r
  31 import java.util.ArrayList;\r
  32 import java.util.Iterator;\r
  33 import java.util.List;\r
  34 import java.util.Map;\r
  35 \r
  36 import org.collectionspace.services.common.relation.RelationJAXBSchema;\r
  37 import org.collectionspace.services.common.relation.RelationListItemJAXBSchema;\r
  38 import org.collectionspace.services.common.relation.IRelationsManager;\r
  39 \r
  40 import org.collectionspace.services.relation.Relation;\r
  41 import org.collectionspace.services.relation.RelationList;\r
  42 import org.collectionspace.services.relation.RelationshipType;\r
  43 import org.collectionspace.services.relation.RelationList.RelationListItem;\r
  44 import org.collectionspace.services.nuxeo.util.NuxeoUtils;\r
  45 import org.collectionspace.services.common.repository.DocumentException;\r
  46 \r
  47 import org.dom4j.Document;\r
  48 import org.dom4j.Element;\r
  49 import org.dom4j.dom.DOMElement;\r
  50 import org.dom4j.dom.DOMDocument;\r
  51 import org.dom4j.dom.DOMDocumentFactory;\r
  52 //import org.dom4j.DocumentException;\r
  53 \r
  54 import org.nuxeo.common.utils.IdUtils;\r
  55 import org.nuxeo.ecm.core.api.ClientException;\r
  56 import org.nuxeo.ecm.core.api.DocumentModel;\r
  57 import org.nuxeo.ecm.core.api.DocumentModelList;\r
  58 import org.nuxeo.ecm.core.api.model.DocumentPart;\r
  59 import org.nuxeo.ecm.core.api.repository.RepositoryInstance;\r
  60 import org.slf4j.Logger;\r
  61 import org.slf4j.LoggerFactory;\r
  62 //import org.w3c.dom.DOMException;\r
  63 //import org.w3c.dom.Element;\r
  64 \r
  65 /**\r
  66  * The Class RelationUtilsNuxeoImpl.\r
  67  */\r
  68 public class RelationsManagerNuxeoImpl implements IRelationsManager {\r
  69         \r
  70         /** The C s_ relatio n_ servic e_ name. */\r
  71         static public String CS_RELATION_SERVICE_NAME = "relations";\r
  72         \r
  73         /** The C s_ empt y_ string. */\r
  74         static public String CS_EMPTY_STRING = "";\r
  75         \r
  76         /** The Constant REL_NUXEO_DOCTYPE. */\r
  77         final public static String REL_NUXEO_DOCTYPE = "Relation";\r
  78         \r
  79         /** The Constant REL_NUXEO_SCHEMA_NAME. */\r
  80         final public static String REL_NUXEO_SCHEMA_NAME = "relation";\r
  81         \r
  82         /** The Constant REL_NUXEO_SCHEMA_ROOT_ELEMENT. */\r
  83         final public static String REL_NUXEO_SCHEMA_ROOT_ELEMENT = "relationtype";\r
  84         \r
  85         /** The Constant REL_NUXEO_DC_TITLE. */\r
  86         final public static String REL_NUXEO_DC_TITLE = "CollectionSpace-Relation";\r
  87         \r
  88         /** The logger. */\r
  89         private static Logger logger = LoggerFactory\r
  90         .getLogger(RelationsManagerNuxeoImpl.class);    \r
  91 \r
  92 \r
  93         /**\r
  94          * Fill relation from doc model.\r
  95          * \r
  96          * @param relation the relation\r
  97          * @param relDocModel the rel doc model\r
  98          * \r
  99          * @throws ClientException the client exception\r
 100          */\r
 101         static public void fillRelationFromDocModel(Relation relation, DocumentModel relDocModel)\r
 102                         throws ClientException {\r
 103                 String xpathRoot = "/" + REL_NUXEO_SCHEMA_ROOT_ELEMENT + "/";\r
 104                 Object valueObject = null;\r
 105 \r
 106                 relation.setCsid(relDocModel.getId());\r
 107 \r
 108                 valueObject = relDocModel.getProperty(REL_NUXEO_SCHEMA_NAME, xpathRoot\r
 109                                 + RelationJAXBSchema.DOCUMENT_ID_1);\r
 110                 relation.setDocumentId1((String) valueObject);\r
 111 \r
 112                 valueObject = relDocModel.getProperty(REL_NUXEO_SCHEMA_NAME, xpathRoot\r
 113                                 + RelationJAXBSchema.DOCUMENT_TYPE_1);\r
 114                 relation.setDocumentType1((String) valueObject);\r
 115 \r
 116                 valueObject = relDocModel.getProperty(REL_NUXEO_SCHEMA_NAME, xpathRoot\r
 117                                 + RelationJAXBSchema.DOCUMENT_ID_2);\r
 118                 relation.setDocumentId2((String) valueObject);\r
 119 \r
 120                 valueObject = relDocModel.getProperty(REL_NUXEO_SCHEMA_NAME, xpathRoot\r
 121                                 + RelationJAXBSchema.DOCUMENT_TYPE_2);\r
 122                 relation.setDocumentType2((String) valueObject);\r
 123 \r
 124                 valueObject = relDocModel.getProperty(REL_NUXEO_SCHEMA_NAME, xpathRoot\r
 125                                 + RelationJAXBSchema.RELATIONSHIP_TYPE);\r
 126                 relation.setRelationshipType(RelationshipType\r
 127                                 .fromValue((String) valueObject));\r
 128 \r
 129                 if (logger.isDebugEnabled() == true) {\r
 130                         System.out.println("vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv");\r
 131                         System.out.println(relation.toString());\r
 132                         System.out.println("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^");\r
 133                 }\r
 134         }\r
 135 \r
 136         /**\r
 137          * Fill relation list item from doc model.\r
 138          * \r
 139          * @param relationListItem the relation list item\r
 140          * @param relDocModel the rel doc model\r
 141          * \r
 142          * @throws DocumentException the document exception\r
 143          */\r
 144         static public void fillRelationListItemFromDocModel(RelationListItem relationListItem,\r
 145                         DocumentModel relDocModel)\r
 146                 throws DocumentException {\r
 147 \r
 148                 try {\r
 149                         relationListItem.setCsid(\r
 150                                         relDocModel.getId());\r
 151                         relationListItem.setUri(\r
 152                                         getRelURL(CS_RELATION_SERVICE_NAME, relDocModel.getId()));\r
 153                 } catch (Exception e) {\r
 154                         if (logger.isDebugEnabled()) {\r
 155                                 logger.debug("Caught exception in fillRelationListItemFromDocModel", e);\r
 156                         }\r
 157                         throw new DocumentException(e);\r
 158                 }\r
 159         }\r
 160         \r
 161         /**\r
 162          * Fill doc model list from relation list.\r
 163          * \r
 164          * @param relationList the relation list\r
 165          * @param relDocModelList the rel doc model list\r
 166          * \r
 167          * @throws Exception the exception\r
 168          */\r
 169         static public void fillDocModelListFromRelationList(RelationList relationList,\r
 170                         DocumentModelList relDocModelList)\r
 171                 throws Exception {\r
 172         }       \r
 173         \r
 174         /**\r
 175          * Fill doc model from relation.\r
 176          * \r
 177          * @param p the p\r
 178          * @param relDocModel the rel doc model\r
 179          * \r
 180          * @throws Exception the exception\r
 181          */\r
 182         static public void fillDocModelFromRelation(Relation p, DocumentModel relDocModel)\r
 183                         throws Exception {\r
 184 \r
 185                 // set the DublinCore title (this works)\r
 186                 relDocModel.setPropertyValue("dublincore:title", "default title");\r
 187 \r
 188                 // // set value for <documentType1> element\r
 189                 // try {\r
 190                 // relDocModel.setProperty("relation", "/relationtype/documentId1",\r
 191                 // "docId1");\r
 192                 // } catch (Exception x) {\r
 193                 // x.printStackTrace();\r
 194                 // }\r
 195 \r
 196                 String xpathRoot = "/" + REL_NUXEO_SCHEMA_ROOT_ELEMENT + "/";\r
 197                 if (p.getDocumentId1() != null) {\r
 198                         String property = xpathRoot + RelationJAXBSchema.DOCUMENT_ID_1;\r
 199                         relDocModel.setProperty(REL_NUXEO_SCHEMA_NAME, property, p\r
 200                                         .getDocumentId1());\r
 201                 }\r
 202                 if (p.getDocumentType1() != null) {\r
 203                         String property = xpathRoot + RelationJAXBSchema.DOCUMENT_TYPE_1;\r
 204                         relDocModel.setProperty(REL_NUXEO_SCHEMA_NAME, property, p\r
 205                                         .getDocumentType1());\r
 206                 }\r
 207                 if (p.getDocumentId2() != null) {\r
 208                         String property = xpathRoot + RelationJAXBSchema.DOCUMENT_ID_2;\r
 209                         relDocModel.setProperty(REL_NUXEO_SCHEMA_NAME, property, p\r
 210                                         .getDocumentId2());\r
 211                 }\r
 212                 if (p.getDocumentType2() != null) {\r
 213                         String property = xpathRoot + "/"\r
 214                                         + RelationJAXBSchema.DOCUMENT_TYPE_2;\r
 215                         relDocModel.setProperty(REL_NUXEO_SCHEMA_NAME, property, p\r
 216                                         .getDocumentType2());\r
 217                 }\r
 218 \r
 219                 if (p.getRelationshipType() != null) {\r
 220                         String property = xpathRoot + RelationJAXBSchema.RELATIONSHIP_TYPE;\r
 221                         relDocModel.setProperty(REL_NUXEO_SCHEMA_NAME, property, p\r
 222                                         .getRelationshipType().value());\r
 223                 }\r
 224         }\r
 225         \r
 226         /**\r
 227          * Prints the document model.\r
 228          * \r
 229          * @param documentModel the document model\r
 230          */\r
 231         static public void printDocumentModel(DocumentModel documentModel) {\r
 232                 System.out.println(documentModel);\r
 233         }\r
 234         \r
 235         /**\r
 236          * Describe document model.\r
 237          * \r
 238          * @param docModel the doc model\r
 239          * \r
 240          * @throws Exception the exception\r
 241          */\r
 242         static private void describeDocumentModel(DocumentModel docModel) throws Exception {\r
 243                 String[] schemas = docModel.getDeclaredSchemas();\r
 244                 for (int i = 0; schemas != null && i < schemas.length; i++) {\r
 245                         System.out.println("Schema-" + i + "=" + schemas[i]);\r
 246                 }\r
 247                 \r
 248                 DocumentPart[] parts = docModel.getParts();\r
 249                 Map<String,Serializable> propertyValues = null;\r
 250                 for (int i = 0; parts != null && i < parts.length; i++) {\r
 251                         System.out.println("Part-" + i + " name =" + parts[i].getName());\r
 252                         System.out.println("Part-" + i + " path =" + parts[i].getPath());\r
 253                         System.out.println("Part-" + i + " schema =" + parts[i].getSchema().getName());\r
 254                         propertyValues = parts[i].exportValues();\r
 255                 }\r
 256 \r
 257         }\r
 258 \r
 259         /**\r
 260          * Creates the relationship.\r
 261          * \r
 262          * @param nuxeoRepoSession the nuxeo repo session\r
 263          * @param newRelation the new relation\r
 264          * \r
 265          * @return the document model\r
 266          * \r
 267          * @throws DocumentException the document exception\r
 268          */\r
 269         static public DocumentModel createRelationship(Object nuxeoRepoSession, Relation newRelation)\r
 270                         throws DocumentException {\r
 271                 DocumentModel result = null;\r
 272                 RepositoryInstance repoSession = (RepositoryInstance)nuxeoRepoSession;\r
 273                 \r
 274                 try {\r
 275                         // get the Nuxeo 'Relations' workspace\r
 276                         DocumentModel workspaceModel = NuxeoUtils.getWorkspaceModel(repoSession,\r
 277                                         CS_RELATION_SERVICE_NAME);\r
 278                         \r
 279                 String docType = REL_NUXEO_DOCTYPE;\r
 280                 String id = IdUtils.generateId("New " + docType);\r
 281                 \r
 282                 //create document model\r
 283                 String workspacePath = workspaceModel.getPathAsString();            \r
 284                 DocumentModel newRelDocModel = repoSession.createDocumentModel(workspacePath, id, docType);\r
 285         \r
 286                 newRelation.setCsid(newRelDocModel.getId());\r
 287                 fillDocModelFromRelation(newRelation, newRelDocModel);\r
 288                 \r
 289                 //create document with the new DocumentModel\r
 290                 result = repoSession.createDocument(newRelDocModel);\r
 291                 repoSession.save();\r
 292                 } catch (Exception e) {\r
 293                         e.printStackTrace();\r
 294                         throw new DocumentException(e);\r
 295                 }\r
 296                 \r
 297                 return result;\r
 298         }\r
 299         \r
 300         /* (non-Javadoc)\r
 301          * @see org.collectionspace.services.common.RelationUtils#createRelationship(java.lang.Object, java.lang.String, java.lang.String, java.lang.String)\r
 302          */\r
 303         public Relation createRelationship(Object nuxeoRepoSession, String subjectCsid, String predicate,\r
 304                         String objectCsid) throws DocumentException {\r
 305                 Relation result = null;\r
 306                 RepositoryInstance repoSession = (RepositoryInstance)nuxeoRepoSession;\r
 307                 \r
 308         Relation temp = new Relation();\r
 309         temp.setDocumentId1(subjectCsid);\r
 310         temp.setRelationshipType(null);\r
 311         temp.setDocumentId2(objectCsid);\r
 312         createRelationship(repoSession, temp);\r
 313                 \r
 314                 return result;\r
 315         }\r
 316         \r
 317         /* (non-Javadoc)\r
 318          * @see org.collectionspace.services.common.RelationUtils#getRelationships(java.lang.Object)\r
 319          */\r
 320         public List<Relation> getRelationships(Object nuxeoRepoSession)\r
 321                         throws DocumentException {\r
 322                 List<Relation> result = null;\r
 323                 RepositoryInstance repoSession = (RepositoryInstance)nuxeoRepoSession;\r
 324 \r
 325                 try {\r
 326                         DocumentModel relationWorkspace = NuxeoUtils.getWorkspaceModel(\r
 327                                         repoSession, CS_RELATION_SERVICE_NAME);\r
 328                         DocumentModelList children = repoSession.getChildren(relationWorkspace\r
 329                                         .getRef());\r
 330                         \r
 331                         result = new ArrayList<Relation>();\r
 332                         Relation relation = null;\r
 333                         for (DocumentModel child : children) {\r
 334                                 relation = new Relation();\r
 335                                 fillRelationFromDocModel(relation, child);\r
 336                                 result.add(relation);\r
 337                         }\r
 338                 } catch (Exception e) {\r
 339                         e.printStackTrace();\r
 340                         throw new DocumentException(e);\r
 341                 }\r
 342 \r
 343                 return result;\r
 344         }\r
 345         \r
 346         /* (non-Javadoc)\r
 347          * @see org.collectionspace.services.common.RelationUtils#getRelationships(java.lang.Object, java.lang.String)\r
 348          */\r
 349         public List<Relation> getRelationships(Object nuxeoRepoSession, String csid)\r
 350                         throws DocumentException {\r
 351                 List<Relation> result = null;\r
 352                 RepositoryInstance repoSession = (RepositoryInstance)nuxeoRepoSession;\r
 353                                 \r
 354                 try {\r
 355                         DocumentModel relationWorkspace = NuxeoUtils.getWorkspaceModel(\r
 356                                         repoSession, CS_RELATION_SERVICE_NAME);\r
 357                         DocumentModelList children = repoSession.getChildren(relationWorkspace\r
 358                                         .getRef());\r
 359                         \r
 360                         result = new ArrayList<Relation>();\r
 361                         Relation relation = null;\r
 362                         for (DocumentModel child : children) {\r
 363                                 if ((isSubjectOfRelation(csid, child) == true) ||\r
 364                                                 (isObjectOfRelation(csid, child) == true)) {\r
 365                                         relation = new Relation();\r
 366                                         fillRelationFromDocModel(relation, child);\r
 367                                         result.add(relation);\r
 368                                 }\r
 369                         }\r
 370                 } catch (Exception e) {\r
 371                         e.printStackTrace();\r
 372                         throw new DocumentException(e);\r
 373                 }\r
 374                 \r
 375                 return result;\r
 376         }\r
 377         \r
 378         \r
 379         /* (non-Javadoc)\r
 380          * @see org.collectionspace.services.common.RelationUtils#getRelationships(java.lang.Object, java.lang.String, java.lang.String, java.lang.String)\r
 381          */\r
 382         public List<Relation> getRelationships(Object nuxeoRepoSession,\r
 383                         String subjectCsid, \r
 384                         String predicate, \r
 385                         String objectCsid) throws DocumentException {\r
 386                 List<Relation> result = null;\r
 387                 RepositoryInstance repoSession = (RepositoryInstance)nuxeoRepoSession;\r
 388                 \r
 389                 try {\r
 390                         DocumentModel relationWorkspace = NuxeoUtils.getWorkspaceModel(\r
 391                                         repoSession, CS_RELATION_SERVICE_NAME);\r
 392                         DocumentModelList children = repoSession.getChildren(relationWorkspace\r
 393                                         .getRef());\r
 394                         \r
 395                         result = new ArrayList<Relation>();\r
 396                         Relation relation = null;\r
 397                         for (DocumentModel child : children) {\r
 398                                 if (isQueryMatch(child, subjectCsid, predicate, objectCsid) == true) {\r
 399                                         relation = new Relation();\r
 400                                         fillRelationFromDocModel(relation, child);\r
 401                                         result.add(relation);                   }\r
 402                         }\r
 403                 } catch (Exception e) {\r
 404                         e.printStackTrace();\r
 405                         throw new DocumentException(e);\r
 406                 }\r
 407                 \r
 408                 return result;\r
 409         }\r
 410                 \r
 411         /* (non-Javadoc)\r
 412          * @see org.collectionspace.services.common.relation.RelationUtils#getQPropertyName(java.lang.String)\r
 413          */\r
 414         public String getQPropertyName(String propertyName) {\r
 415                 return "/" + REL_NUXEO_SCHEMA_ROOT_ELEMENT + "/" + propertyName;\r
 416         }\r
 417                 \r
 418         /**\r
 419          * Checks if is subject of relation.\r
 420          * \r
 421          * @param csid the csid\r
 422          * @param documentModel the document model\r
 423          * \r
 424          * @return true, if is subject of relation\r
 425          * \r
 426          * @throws ClientException the client exception\r
 427          */\r
 428         private boolean isSubjectOfRelation(String csid, DocumentModel documentModel)\r
 429                         throws ClientException {\r
 430                 boolean result = false;\r
 431                 String xpathRoot = "/" + REL_NUXEO_SCHEMA_ROOT_ELEMENT + "/";\r
 432 \r
 433                 Object valueObject = documentModel.getProperty(REL_NUXEO_SCHEMA_NAME, xpathRoot\r
 434                                 + RelationJAXBSchema.DOCUMENT_ID_1);\r
 435                 if (valueObject != null && csid != null) {\r
 436                         String subjectID = (String) valueObject;\r
 437                         result = subjectID.equals(csid);\r
 438                 }\r
 439                 \r
 440                 return result;\r
 441         }\r
 442 \r
 443         /**\r
 444          * Checks if is object of relation.\r
 445          * \r
 446          * @param csid the csid\r
 447          * @param documentModel the document model\r
 448          * \r
 449          * @return true, if is object of relation\r
 450          * \r
 451          * @throws ClientException the client exception\r
 452          */\r
 453         private boolean isObjectOfRelation(String csid, DocumentModel documentModel)\r
 454                         throws ClientException {\r
 455                 boolean result = false;\r
 456                 String xpathRoot = "/" + REL_NUXEO_SCHEMA_ROOT_ELEMENT + "/";\r
 457 \r
 458                 Object valueObject = documentModel.getProperty(REL_NUXEO_SCHEMA_NAME,\r
 459                                 xpathRoot + RelationJAXBSchema.DOCUMENT_ID_2);\r
 460                 if (valueObject != null  && csid != null) {\r
 461                         String subjectID = (String) valueObject;\r
 462                         result = subjectID.equals(csid);\r
 463                 }\r
 464 \r
 465                 return result;\r
 466         }\r
 467         \r
 468         /**\r
 469          * Checks if is predicate of relation.\r
 470          * \r
 471          * @param predicate the predicate\r
 472          * @param documentModel the document model\r
 473          * \r
 474          * @return true, if is predicate of relation\r
 475          * \r
 476          * @throws ClientException the client exception\r
 477          */\r
 478         private boolean isPredicateOfRelation(String predicate,\r
 479                         DocumentModel documentModel) throws ClientException {\r
 480                 boolean result = false;\r
 481                 String xpathRoot = "/" + REL_NUXEO_SCHEMA_ROOT_ELEMENT + "/";\r
 482 \r
 483                 Object valueObject = documentModel.getProperty(REL_NUXEO_SCHEMA_NAME,\r
 484                                 xpathRoot + RelationJAXBSchema.RELATIONSHIP_TYPE);\r
 485                 if (valueObject != null  && predicate != null) {\r
 486                         String relationType = (String) valueObject;\r
 487                         result = predicate.equalsIgnoreCase(relationType);\r
 488                 }\r
 489 \r
 490                 return result;\r
 491         }\r
 492 \r
 493         /**\r
 494          * Gets the object from subject.\r
 495          * \r
 496          * @param csid the csid\r
 497          * @param documentModel the document model\r
 498          * \r
 499          * @return the object from subject\r
 500          * \r
 501          * @throws ClientException the client exception\r
 502          */\r
 503         private String getObjectFromSubject(String csid, DocumentModel documentModel)\r
 504                         throws ClientException {\r
 505                 String result = null;\r
 506                 String xpathRoot = "/" + REL_NUXEO_SCHEMA_ROOT_ELEMENT + "/";\r
 507 \r
 508                 Object valueObject = documentModel.getProperty(REL_NUXEO_SCHEMA_NAME,\r
 509                                 xpathRoot + RelationJAXBSchema.DOCUMENT_ID_1);\r
 510                 if (valueObject != null) {\r
 511                         String subjectID = (String) valueObject;\r
 512                         if (subjectID.equals(csid) == true) {\r
 513                                 valueObject = documentModel.getProperty(REL_NUXEO_SCHEMA_NAME,\r
 514                                                 xpathRoot + RelationJAXBSchema.DOCUMENT_ID_2);\r
 515                                 if (valueObject != null) {\r
 516                                         result = (String) valueObject;\r
 517                                 }\r
 518                         }\r
 519                 }\r
 520 \r
 521                 return result;\r
 522         }\r
 523         \r
 524         /**\r
 525          * Gets the document.\r
 526          * \r
 527          * @param relationList the relation list\r
 528          * \r
 529          * @return the document\r
 530          * \r
 531          * @throws DocumentException the document exception\r
 532          */\r
 533         static public Document getDocument(List<Relation> relationList)\r
 534                         throws DocumentException {\r
 535                 DOMDocumentFactory domfactory = new DOMDocumentFactory();\r
 536                 DOMDocument result = (DOMDocument) domfactory.createDocument();\r
 537 \r
 538                 try {\r
 539                         // setup the root element\r
 540                         DOMElement root = (DOMElement) result\r
 541                                         .createElement(RelationListItemJAXBSchema.REL_ROOT_ELEM_NAME);\r
 542                         result.setRootElement((org.dom4j.Element) root);\r
 543 \r
 544                         // populate the document with child elements\r
 545                         for (Relation child : relationList) {\r
 546                                 DOMElement el = (DOMElement) result.createElement(RelationJAXBSchema.REL_ROOT_ELEM_NAME);\r
 547                                 el.setAttribute(RelationListItemJAXBSchema.CSID, child\r
 548                                                 .getCsid());\r
 549                                 el.setAttribute(RelationListItemJAXBSchema.URI, getRelURL(\r
 550                                                 CS_RELATION_SERVICE_NAME, child.getCsid()));\r
 551 \r
 552                                 if (logger.isDebugEnabled() == true) {\r
 553                                         System.out.println(el.asXML());\r
 554                                 }\r
 555                                 \r
 556                                 root.appendChild(el);\r
 557                         }\r
 558                 } catch (Exception e) {\r
 559                         if (logger.isDebugEnabled()) {\r
 560                                 logger.debug("Caught exception ", e);\r
 561                         }\r
 562                         throw new DocumentException(e);\r
 563                 }\r
 564 \r
 565                 if (logger.isDebugEnabled() == true) {\r
 566                         System.out.println(result.asXML());\r
 567                 }\r
 568 \r
 569                 return result;\r
 570         }\r
 571         \r
 572         /**\r
 573          * Checks if is query match.\r
 574          * \r
 575          * @param documentModel the document model\r
 576          * @param subjectCsid the subject csid\r
 577          * @param predicate the predicate\r
 578          * @param objectCsid the object csid\r
 579          * \r
 580          * @return true, if is query match\r
 581          * \r
 582          * @throws ClientException the client exception\r
 583          */\r
 584         public boolean isQueryMatch(DocumentModel documentModel,\r
 585                         String subjectCsid,\r
 586                         String predicate,\r
 587                         String objectCsid) throws DocumentException {\r
 588                 boolean result = true;\r
 589                 \r
 590                 try {\r
 591                 block: {\r
 592                         if (subjectCsid != null) {\r
 593                                 if (isSubjectOfRelation(subjectCsid, documentModel) == false) {\r
 594                                         result = false;\r
 595                                         break block;\r
 596                                 }\r
 597                         }\r
 598                         if (predicate != null) {\r
 599                                 if (isPredicateOfRelation(predicate, documentModel) == false) {\r
 600                                         result = false;\r
 601                                         break block;\r
 602                                 }\r
 603                         }\r
 604                         if (objectCsid != null) {\r
 605                                 if (isObjectOfRelation(objectCsid, documentModel) == false) {\r
 606                                         result = false;\r
 607                                         break block;\r
 608                                 }\r
 609                         }\r
 610                 }\r
 611                 } catch (ClientException e) {\r
 612                         if (logger.isDebugEnabled() == true) {\r
 613                                 e.printStackTrace();\r
 614                         }\r
 615                         throw new DocumentException(e);\r
 616                 }\r
 617                 \r
 618                 return result;\r
 619         }\r
 620         \r
 621     /**\r
 622      * Gets the rel url.\r
 623      * \r
 624      * @param repo the repo\r
 625      * @param uuid the uuid\r
 626      * \r
 627      * @return the rel url\r
 628      */\r
 629     private static String getRelURL(String repo, String uuid) {\r
 630         return '/' + repo + '/' + uuid;\r
 631     }   \r
 632         \r
 633 }\r