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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.Pattern;\r
  33 \r
  34 import org.nuxeo.ecm.core.api.DocumentModel;\r
  35 import org.nuxeo.ecm.core.api.DocumentModelList;\r
  36 import org.nuxeo.ecm.core.api.repository.RepositoryInstance;\r
  37 import org.nuxeo.ecm.core.client.NuxeoClient;\r
  38 \r
  39 import org.collectionspace.services.nuxeo.client.java.NuxeoConnector;\r
  40 import org.collectionspace.services.nuxeo.client.java.RepositoryJavaClientImpl;\r
  41 import org.collectionspace.services.client.IQueryManager;\r
  42 import org.collectionspace.services.common.storage.DatabaseProductType;\r
  43 import org.collectionspace.services.common.storage.JDBCTools;\r
  44 \r
  45 public class QueryManagerNuxeoImpl implements IQueryManager {\r
  46         \r
  47         private static String ECM_FULLTEXT_LIKE = \r
  48                 "ecm:fulltext" + SEARCH_TERM_SEPARATOR + IQueryManager.SEARCH_LIKE;\r
  49         private static String SEARCH_LIKE_FORM = null;\r
  50 \r
  51         private final Logger logger = LoggerFactory\r
  52                         .getLogger(QueryManagerNuxeoImpl.class);\r
  53         \r
  54         // Consider that letters, letter-markers, numbers, '_' and apostrophe are words  \r
  55         private static Pattern nonWordChars = Pattern.compile("[^\\p{L}\\p{M}\\p{N}_']");\r
  56         private static Pattern unescapedDblQuotes = Pattern.compile("(?<!\\\\)\"");\r
  57         private static Pattern unescapedSingleQuote = Pattern.compile("(?<!\\\\)'");\r
  58         \r
  59         private static String getLikeForm() {\r
  60                 if(SEARCH_LIKE_FORM == null) {\r
  61                         try {\r
  62                                 DatabaseProductType type = JDBCTools.getDatabaseProductType();\r
  63                                 if(type == DatabaseProductType.MYSQL) {\r
  64                                         SEARCH_LIKE_FORM = IQueryManager.SEARCH_LIKE;\r
  65                                 } else if(type == DatabaseProductType.POSTGRESQL) {\r
  66                                         SEARCH_LIKE_FORM = IQueryManager.SEARCH_ILIKE;\r
  67                                 }\r
  68                         } catch (Exception e) {\r
  69                                 SEARCH_LIKE_FORM = IQueryManager.SEARCH_LIKE;\r
  70                         }\r
  71                 }\r
  72                 return SEARCH_LIKE_FORM;\r
  73         }\r
  74 \r
  75         //TODO: This is currently just an example fixed query.  This should eventually be\r
  76         // removed or replaced with a more generic method.\r
  77         /* (non-Javadoc)\r
  78          * @see org.collectionspace.services.common.query.IQueryManager#execQuery(java.lang.String)\r
  79          */\r
  80         public void execQuery(String queryString) {\r
  81                 NuxeoClient client = null;\r
  82                 try {\r
  83                         client = NuxeoConnector.getInstance().getClient();\r
  84                         RepositoryInstance repoSession = client.openRepository();\r
  85                         \r
  86                         DocumentModelList docModelList = repoSession.query("SELECT * FROM Relation WHERE relation:relationtype.documentId1='updated-Subject-1'");\r
  87 //                      DocumentModelList docModelList = repoSession.query("SELECT * FROM Relation");\r
  88 //                      DocumentModelList docModelList = repoSession.query("SELECT * FROM CollectionObject WHERE collectionobject:objectNumber='objectNumber-1251305545865'");\r
  89                         for (DocumentModel docModel : docModelList) {\r
  90                                 System.out.println("--------------------------------------------");\r
  91                                 System.out.println(docModel.getPathAsString());\r
  92                                 System.out.println(docModel.getName());\r
  93                                 System.out.println(docModel.getPropertyValue("dc:title"));\r
  94 //                              System.out.println("documentId1=" + docModel.getProperty("relation", "relationtype/documentId1").toString());\r
  95                         }\r
  96                         \r
  97                 } catch (Exception e) {\r
  98                         // TODO Auto-generated catch block\r
  99                         e.printStackTrace();\r
 100                 }               \r
 101         }\r
 102 \r
 103         /* (non-Javadoc)\r
 104          * @see org.collectionspace.services.common.query.IQueryManager#createWhereClauseFromKeywords(java.lang.String)\r
 105          */\r
 106         // TODO handle keywords containing escaped punctuation chars, then we need to qualify the\r
 107         // search by matching on the fulltext.simpletext field.\r
 108         // TODO handle keywords containing unescaped double quotes by matching the phrase\r
 109         // against the fulltext.simpletext field.\r
 110         // Both these require using JDBC, since we cannot get to the fulltext table in NXQL\r
 111         public String createWhereClauseFromKeywords(String keywords) {\r
 112                 String result = null;\r
 113                 StringBuffer fullTextWhereClause = new StringBuffer(SEARCH_GROUP_OPEN);\r
 114                 //StringBuffer phraseWhereClause = new StringBuffer(SEARCH_GROUP_OPEN);\r
 115                 boolean phrasesToAdd = false;\r
 116                 // Split on unescaped double quotes to handle phrases\r
 117                 String[] phrases = unescapedDblQuotes.split(keywords.trim());\r
 118                 boolean first = true;\r
 119                 for(String phrase : phrases ) {\r
 120                         String trimmed = phrase.trim();\r
 121                         // Ignore empty strings from match, or goofy input\r
 122                         if(trimmed.isEmpty())\r
 123                                 continue;\r
 124                         // Add the phrase to the string to pass in for full text matching.\r
 125                         // Note that we can pass in a set of words and it will do the OR for us.\r
 126                         if(first) {\r
 127                                 fullTextWhereClause.append(ECM_FULLTEXT_LIKE +"'");\r
 128                                 first = false;\r
 129                         } else {\r
 130                                 fullTextWhereClause.append(SEARCH_TERM_SEPARATOR);\r
 131                         }\r
 132                         // ignore the special chars except single quote here - can't hurt\r
 133                         // TODO this should become a special function that strips things the\r
 134                         // fulltext will ignore, including non-word chars and too-short words,\r
 135                         // and escaping single quotes. Can return a boolean for anything stripped,\r
 136                         // which triggers the back-up search. We can think about whether stripping\r
 137                         // short words not in a quoted phrase should trigger the backup.\r
 138                         fullTextWhereClause.append(unescapedSingleQuote.matcher(trimmed).replaceAll("\\\\'"));\r
 139                         // If there are non-word chars in the phrase, we need to match the\r
 140                         // phrase exactly against the fulltext table for this object\r
 141                         //if(nonWordChars.matcher(trimmed).matches()) {\r
 142                         //}\r
 143                         if (logger.isTraceEnabled() == true) {\r
 144                                 logger.trace("Current built whereClause is: " + fullTextWhereClause.toString());\r
 145                         }\r
 146                 }\r
 147                 if(first) {\r
 148                         throw new RuntimeException("No usable keywords specified in string:["\r
 149                                         +keywords+"]");\r
 150                 }\r
 151                 fullTextWhereClause.append("'"+SEARCH_GROUP_CLOSE);\r
 152                 \r
 153                 result = fullTextWhereClause.toString();\r
 154             if (logger.isDebugEnabled()) {\r
 155                 logger.debug("Final built WHERE clause is: " + result);\r
 156             }\r
 157             \r
 158             return result;\r
 159         }\r
 160 \r
 161         /* (non-Javadoc)\r
 162          * @see org.collectionspace.services.common.query.IQueryManager#createWhereClauseFromKeywords(java.lang.String)\r
 163          */\r
 164         // TODO handle keywords containing escaped punctuation chars, then we need to qualify the\r
 165         // search by matching on the fulltext.simpletext field.\r
 166         // TODO handle keywords containing unescaped double quotes by matching the phrase\r
 167         // against the fulltext.simpletext field.\r
 168         // Both these require using JDBC, since we cannot get to the fulltext table in NXQL\r
 169         public String createWhereClauseForPartialMatch(String field, String partialTerm) {\r
 170                 String trimmed = (partialTerm == null)?"":partialTerm.trim(); \r
 171                 if (trimmed.isEmpty()) {\r
 172                         throw new RuntimeException("No partialTerm specified.");\r
 173                 }\r
 174                 if (field==null || field.isEmpty()) {\r
 175                         throw new RuntimeException("No match field specified.");\r
 176                 }\r
 177                 String ptClause = field\r
 178                         + getLikeForm()\r
 179                         + "'%" + unescapedSingleQuote.matcher(trimmed).replaceAll("\\\\'") + "%'";\r
 180                 return ptClause;\r
 181         }\r
 182 \r
 183 \r
 184         \r
 185         /**\r
 186          * @param input\r
 187          * @return true if there were any chars filtered, that will require a backup\r
 188          *  qualifying search on the actual text.\r
 189          */\r
 190         private boolean filterForFullText(String input) {\r
 191                 boolean fFilteredChars = false;\r
 192                 \r
 193                 return fFilteredChars;\r
 194         }\r
 195 }\r