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   1 /**     \r
   2  * QueryManagerNuxeoImpl.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.query.nuxeo;\r
  28 \r
  29 import org.slf4j.Logger;\r
  30 import org.slf4j.LoggerFactory;\r
  31 \r
  32 import java.util.regex.Matcher;\r
  33 import java.util.regex.Pattern;\r
  34 \r
  35 import org.nuxeo.ecm.core.api.DocumentModel;\r
  36 import org.nuxeo.ecm.core.api.DocumentModelList;\r
  37 import org.nuxeo.ecm.core.api.repository.RepositoryInstance;\r
  38 //import org.nuxeo.ecm.core.client.NuxeoClient;\r
  39 \r
  40 import org.collectionspace.services.jaxb.InvocableJAXBSchema;\r
  41 //import org.collectionspace.services.nuxeo.client.java.NuxeoConnector;\r
  42 //import org.collectionspace.services.nuxeo.client.java.NxConnect;\r
  43 import org.collectionspace.services.nuxeo.client.java.NuxeoClientEmbedded;\r
  44 import org.collectionspace.services.nuxeo.client.java.NuxeoConnectorEmbedded;\r
  45 \r
  46 import org.collectionspace.services.client.IQueryManager;\r
  47 import org.collectionspace.services.common.invocable.Invocable;\r
  48 import org.collectionspace.services.common.invocable.InvocableUtils;\r
  49 import org.collectionspace.services.common.storage.DatabaseProductType;\r
  50 import org.collectionspace.services.common.storage.JDBCTools;\r
  51 \r
  52 public class QueryManagerNuxeoImpl implements IQueryManager {\r
  53 \r
  54         private static String ECM_FULLTEXT_LIKE = "ecm:fulltext"\r
  55                         + SEARCH_TERM_SEPARATOR + IQueryManager.SEARCH_LIKE;\r
  56         private static String SEARCH_LIKE_FORM = null;\r
  57 \r
  58         private final Logger logger = LoggerFactory\r
  59                         .getLogger(QueryManagerNuxeoImpl.class);\r
  60 \r
  61         // Consider that letters, letter-markers, numbers, '_' and apostrophe are\r
  62         // words\r
  63         private static Pattern nonWordChars = Pattern\r
  64                         .compile("[^\\p{L}\\p{M}\\p{N}_']");\r
  65         private static Pattern kwdTokenizer = Pattern.compile("(?:(['\"])(.*?)(?<!\\\\)(?>\\\\\\\\)*\\1|([^ ]+))");\r
  66         private static Pattern unescapedDblQuotes = Pattern.compile("(?<!\\\\)\"");\r
  67         private static Pattern unescapedSingleQuote = Pattern.compile("(?<!\\\\)'");\r
  68         private static Pattern kwdSearchProblemChars = Pattern.compile("[\\:\\(\\)\\*\\%]");\r
  69         private static Pattern kwdSearchHyphen = Pattern.compile(" - ");\r
  70 \r
  71         private static String getLikeForm() {\r
  72                 if (SEARCH_LIKE_FORM == null) {\r
  73                         try {\r
  74                                 DatabaseProductType type = JDBCTools.getDatabaseProductType();\r
  75                                 if (type == DatabaseProductType.MYSQL) {\r
  76                                         SEARCH_LIKE_FORM = IQueryManager.SEARCH_LIKE;\r
  77                                 } else if (type == DatabaseProductType.POSTGRESQL) {\r
  78                                         SEARCH_LIKE_FORM = IQueryManager.SEARCH_ILIKE;\r
  79                                 }\r
  80                         } catch (Exception e) {\r
  81                                 SEARCH_LIKE_FORM = IQueryManager.SEARCH_LIKE;\r
  82                         }\r
  83                 }\r
  84                 return SEARCH_LIKE_FORM;\r
  85         }\r
  86 \r
  87         // TODO: This is currently just an example fixed query. This should\r
  88         // eventually be\r
  89         // removed or replaced with a more generic method.\r
  90         /*\r
  91          * (non-Javadoc)\r
  92          * \r
  93          * @see\r
  94          * org.collectionspace.services.common.query.IQueryManager#execQuery(java\r
  95          * .lang.String)\r
  96          */\r
  97         @Override\r
  98         @Deprecated\r
  99         public void execQuery(String queryString) {\r
 100                 NuxeoClientEmbedded client = null;\r
 101                 try {\r
 102                         client = NuxeoConnectorEmbedded.getInstance().getClient();\r
 103                         RepositoryInstance repoSession = client.openRepository();\r
 104 \r
 105                         DocumentModelList docModelList = repoSession\r
 106                                         .query("SELECT * FROM Relation WHERE relations_common:subjectCsid='updated-Subject-1'");\r
 107                         // DocumentModelList docModelList =\r
 108                         // repoSession.query("SELECT * FROM Relation");\r
 109                         // DocumentModelList docModelList =\r
 110                         // repoSession.query("SELECT * FROM CollectionObject WHERE collectionobject:objectNumber='objectNumber-1251305545865'");\r
 111                         for (DocumentModel docModel : docModelList) {\r
 112                                 System.out\r
 113                                                 .println("--------------------------------------------");\r
 114                                 System.out.println(docModel.getPathAsString());\r
 115                                 System.out.println(docModel.getName());\r
 116                                 System.out.println(docModel.getPropertyValue("dc:title"));\r
 117                                 // System.out.println("subjectCsid=" +\r
 118                                 // docModel.getProperty("relations_common",\r
 119                                 // "subjectCsid").toString());\r
 120                         }\r
 121 \r
 122                 } catch (Exception e) {\r
 123                         // TODO Auto-generated catch block\r
 124                         e.printStackTrace();\r
 125                 }\r
 126         }\r
 127 \r
 128         @Override\r
 129         public String createWhereClauseFromAdvancedSearch(String advancedSearch) {\r
 130                 String result = null;\r
 131                 //\r
 132                 // Process search term.  FIXME: REM - Do we need to perform and string filtering here?\r
 133                 //\r
 134                 if (advancedSearch != null && !advancedSearch.isEmpty()) {\r
 135                         StringBuffer advancedSearchWhereClause = new StringBuffer(\r
 136                                         advancedSearch);\r
 137                         result = advancedSearchWhereClause.toString();\r
 138                 }\r
 139                 \r
 140                 return result;\r
 141         }\r
 142 \r
 143         /*\r
 144          * (non-Javadoc)\r
 145          * \r
 146          * @see org.collectionspace.services.common.query.IQueryManager#\r
 147          * createWhereClauseFromKeywords(java.lang.String)\r
 148          */\r
 149         // TODO handle keywords containing escaped punctuation chars, then we need\r
 150         // to qualify the\r
 151         // search by matching on the fulltext.simpletext field.\r
 152         // TODO handle keywords containing unescaped double quotes by matching the\r
 153         // phrase\r
 154         // against the fulltext.simpletext field.\r
 155         // Both these require using JDBC, since we cannot get to the fulltext table\r
 156         // in NXQL\r
 157         @Override\r
 158         public String createWhereClauseFromKeywords(String keywords) {\r
 159                 String result = null;\r
 160                 StringBuffer fullTextWhereClause = new StringBuffer();\r
 161                 // Split on unescaped double quotes to handle phrases\r
 162                 Matcher regexMatcher = kwdTokenizer.matcher(keywords.trim());\r
 163                 boolean addNOT = false;\r
 164                 boolean newWordSet = true;\r
 165                 while (regexMatcher.find()) {\r
 166                         String phrase = regexMatcher.group();\r
 167                         // Not needed - already trimmed by split: \r
 168                         // String trimmed = phrase.trim();\r
 169                         // Ignore empty strings from match, or goofy input\r
 170                         if (phrase.isEmpty())\r
 171                                 continue;\r
 172                         // Note we let OR through as is\r
 173                         if("AND".equalsIgnoreCase(phrase)) {\r
 174                                 continue;       // AND is default\r
 175                         } else if("NOT".equalsIgnoreCase(phrase)) {\r
 176                                 addNOT = true;\r
 177                                 continue;\r
 178                         }\r
 179                         // Next comment block of questionable value...\r
 180                         \r
 181                         // ignore the special chars except single quote here - can't hurt\r
 182                         // TODO this should become a special function that strips things the\r
 183                         // fulltext will ignore, including non-word chars and too-short\r
 184                         // words,\r
 185                         // and escaping single quotes. Can return a boolean for anything\r
 186                         // stripped,\r
 187                         // which triggers the back-up search. We can think about whether\r
 188                         // stripping\r
 189                         // short words not in a quoted phrase should trigger the backup.\r
 190                         String escapedAndTrimmed = unescapedSingleQuote.matcher(phrase).replaceAll("\\\\'");\r
 191                         // If there are non-word chars in the phrase, we need to match the\r
 192                         // phrase exactly against the fulltext table for this object\r
 193                         // if(nonWordChars.matcher(trimmed).matches()) {\r
 194                         // }\r
 195                         // Replace problem chars with spaces. Patches CSPACE-4147,\r
 196                         // CSPACE-4106\r
 197                         escapedAndTrimmed = kwdSearchProblemChars.matcher(escapedAndTrimmed).replaceAll(" ").trim();\r
 198                         escapedAndTrimmed = kwdSearchHyphen.matcher(escapedAndTrimmed).replaceAll(" ").trim();\r
 199                         if(escapedAndTrimmed.isEmpty()) {\r
 200                                 if (logger.isDebugEnabled() == true) {\r
 201                                         logger.debug("Phrase reduced to empty after replacements: " + phrase);\r
 202                                 }\r
 203                                 continue;\r
 204                         }\r
 205 \r
 206                         if (fullTextWhereClause.length()==0) {\r
 207                                 fullTextWhereClause.append(SEARCH_GROUP_OPEN);\r
 208                         }\r
 209                         if (newWordSet) {\r
 210                                 fullTextWhereClause.append(ECM_FULLTEXT_LIKE + "'");\r
 211                                 newWordSet = false;\r
 212                         } else {\r
 213                                 fullTextWhereClause.append(SEARCH_TERM_SEPARATOR);\r
 214                         }\r
 215                         if(addNOT) {\r
 216                                 fullTextWhereClause.append("-");        // Negate the next term\r
 217                                 addNOT = false;\r
 218                         }\r
 219                         fullTextWhereClause.append(escapedAndTrimmed);\r
 220                         \r
 221                         if (logger.isTraceEnabled() == true) {\r
 222                                 logger.trace("Current built whereClause is: "\r
 223                                                 + fullTextWhereClause.toString());\r
 224                         }\r
 225                 }\r
 226                 if (fullTextWhereClause.length()==0) {\r
 227                         if (logger.isDebugEnabled() == true) {\r
 228                                 logger.debug("No usable keywords specified in string:[" + keywords + "]");\r
 229                         }\r
 230                 } else {\r
 231                         fullTextWhereClause.append("'" + SEARCH_GROUP_CLOSE);\r
 232                 }\r
 233 \r
 234                 result = fullTextWhereClause.toString();\r
 235                 if (logger.isDebugEnabled()) {\r
 236                         logger.debug("Final built WHERE clause is: " + result);\r
 237                 }\r
 238 \r
 239                 return result;\r
 240         }\r
 241 \r
 242         /*\r
 243          * (non-Javadoc)\r
 244          * \r
 245          * @see org.collectionspace.services.common.query.IQueryManager#\r
 246          * createWhereClauseFromKeywords(java.lang.String)\r
 247          */\r
 248         // TODO handle keywords containing escaped punctuation chars, then we need\r
 249         // to qualify the\r
 250         // search by matching on the fulltext.simpletext field.\r
 251         // TODO handle keywords containing unescaped double quotes by matching the\r
 252         // phrase\r
 253         // against the fulltext.simpletext field.\r
 254         // Both these require using JDBC, since we cannot get to the fulltext table\r
 255         // in NXQL\r
 256         @Override\r
 257         public String createWhereClauseForPartialMatch(String field,\r
 258                         String partialTerm) {\r
 259                 String trimmed = (partialTerm == null) ? "" : partialTerm.trim();\r
 260                 if (trimmed.isEmpty()) {\r
 261                         throw new RuntimeException("No partialTerm specified.");\r
 262                 }\r
 263                 if (field == null || field.isEmpty()) {\r
 264                         throw new RuntimeException("No match field specified.");\r
 265                 }\r
 266                 String ptClause = field + getLikeForm() + "'%"\r
 267                                 + unescapedSingleQuote.matcher(trimmed).replaceAll("\\\\'")\r
 268                                 + "%'";\r
 269                 return ptClause;\r
 270         }\r
 271 \r
 272         /**\r
 273          * Creates a filtering where clause from docType, for invocables.\r
 274          * \r
 275          * @param docType\r
 276          *            the docType\r
 277          * \r
 278          * @return the string\r
 279          */\r
 280         @Override\r
 281         public String createWhereClauseForInvocableByDocType(String schema,\r
 282                         String docType) {\r
 283                 String trimmed = (docType == null) ? "" : docType.trim();\r
 284                 if (trimmed.isEmpty()) {\r
 285                         throw new RuntimeException("No docType specified.");\r
 286                 }\r
 287                 if (schema == null || schema.isEmpty()) {\r
 288                         throw new RuntimeException("No match schema specified.");\r
 289                 }\r
 290                 String wClause = schema + ":" + InvocableJAXBSchema.FOR_DOC_TYPES\r
 291                                 + " = '" + trimmed + "'";\r
 292                 return wClause;\r
 293         }\r
 294 \r
 295         /**\r
 296          * Creates a filtering where clause from invocation mode, for invocables.\r
 297          * \r
 298          * @param mode\r
 299          *            the mode\r
 300          * \r
 301          * @return the string\r
 302          */\r
 303         @Override\r
 304         public String createWhereClauseForInvocableByMode(String schema, String mode) {\r
 305                 String trimmed = (mode == null) ? "" : mode.trim();\r
 306                 if (trimmed.isEmpty()) {\r
 307                         throw new RuntimeException("No docType specified.");\r
 308                 }\r
 309                 if (schema == null || schema.isEmpty()) {\r
 310                         throw new RuntimeException("No match schema specified.");\r
 311                 }\r
 312                 String wClause = InvocableUtils.getPropertyNameForInvocationMode(\r
 313                                 schema, trimmed) + " != 0";\r
 314                 return wClause;\r
 315         }\r
 316 \r
 317         /**\r
 318          * @param input\r
 319          * @return true if there were any chars filtered, that will require a backup\r
 320          *         qualifying search on the actual text.\r
 321          */\r
 322         private boolean filterForFullText(String input) {\r
 323                 boolean fFilteredChars = false;\r
 324 \r
 325                 return fFilteredChars;\r
 326         }\r
 327         \r
 328         /**\r
 329          * Creates a query to filter a qualified (string) field according to a list of string values. \r
 330          * @param qualifiedField The schema-qualified field to filter on\r
 331          * @param filterTerms the list of one or more strings to filter on\r
 332          * @param fExclude If true, will require qualifiedField NOT match the filters strings.\r
 333          *                                      If false, will require qualifiedField does match one of the filters strings.\r
 334          * @return queryString\r
 335          */\r
 336         @Override\r
 337         public String createWhereClauseToFilterFromStringList(String qualifiedField, String[] filterTerms, boolean fExclude) {\r
 338         // Start with the qualified termStatus field\r
 339         StringBuilder filterClause = new StringBuilder(qualifiedField);\r
 340         if(filterTerms.length == 1) {\r
 341                 filterClause.append(fExclude?" <> '":" = '");\r
 342                 filterClause.append(filterTerms[0]);\r
 343                 filterClause.append('\'');  \r
 344         } else {\r
 345                 filterClause.append(fExclude?" NOT IN (":" IN (");\r
 346                 for(int i=0; i<filterTerms.length; i++) {\r
 347                         if(i>0) {\r
 348                                 filterClause.append(',');\r
 349                         }\r
 350                         filterClause.append('\'');  \r
 351                         filterClause.append(filterTerms[i]);\r
 352                         filterClause.append('\'');  \r
 353                 }\r
 354                 filterClause.append(')');  \r
 355         }\r
 356         return filterClause.toString();\r
 357         }\r
 358 \r
 359 }\r