added option to enrich vocabularies with synonyms from synonym database

htroot/Vocabulary_p.html

@@ -134,6 +134,8 @@ To see a list of all APIs, please visit the <a href="http://www.yacy-websuche.de
             <dd><input type="number" id="discovercolumnobjectlink" name="discovercolumnobjectlink" min="-1" max="99" step="1" size="2" value="-1" disabled="disabled" style="width:50px;"> (first has index 0, if unused set -1)</dd>
             <dt><i>Charset of Import File</i></dt>
             <dd><select name="charset">#{charset}#<option value="#[name]#" #(selected)#::selected="selected"#(/selected)#>#[name]#</option>#{/charset}#</select></dd>
+            <dt><i>Auto-Enrich with Synonyms from Stemming Library</i></dt>
+            <dd><input type="checkbox" name="discoverenrichsynonyms" id="discoverenrichsynonyms" checked="checked" /></dd>
             </dl>
         </dd>
         <dt></dt><dd><input type="submit" name="create" value="Create" /></dd>

htroot/Vocabulary_p.java

@@ -29,9 +29,11 @@ import java.util.Collection;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.Set;
 
 import net.yacy.cora.document.id.DigestURL;
 import net.yacy.cora.document.id.MultiProtocolURL;
+import net.yacy.cora.language.synonyms.SynonymLibrary;
 import net.yacy.cora.lod.vocabulary.DCTerms;
 import net.yacy.cora.lod.vocabulary.Tagging;
 import net.yacy.cora.lod.vocabulary.Tagging.SOTuple;
@@ -80,6 +82,7 @@ public class Vocabulary_p {
                     final int discovercolumnliteral = post.getInt("discovercolumnliteral", 0);
                     final int discovercolumnobjectlink = post.getInt("discovercolumnobjectlink", -1);
                     final File discoverFromCSVFile = discoverFromCSVPath.length() > 0 ? new File(discoverFromCSVPath) : null;
+                    final boolean discoverenrichsynonyms = post.getBoolean("discoverenrichsynonyms");
                     Segment segment = sb.index;
                     String t;
                     if (!discoverNot) {
@@ -88,10 +91,17 @@ public class Vocabulary_p {
                             String line = null;
                             while ((line = r.readLine()) != null) {
                                 String[] l = line.split(";");
-                                String literal = discovercolumnliteral < 0 || l.length <= discovercolumnliteral ? null : l[discovercolumnliteral];
-                                String objectlink = discovercolumnobjectlink < 0 || l.length <= discovercolumnobjectlink ? null : l[discovercolumnobjectlink];
+                                String literal = discovercolumnliteral < 0 || l.length <= discovercolumnliteral ? null : l[discovercolumnliteral].trim();
+                                String objectlink = discovercolumnobjectlink < 0 || l.length <= discovercolumnobjectlink ? null : l[discovercolumnobjectlink].trim();
                                 if (literal != null && literal.length() > 0) {
-                                    table.put(literal, new Tagging.SOTuple(Tagging.normalizeTerm(literal), objectlink == null ? "" : objectlink));
+                                    String synonyms = Tagging.normalizeTerm(literal);
+                                    if (discoverenrichsynonyms) {
+                                        Set<String> sy = SynonymLibrary.getSynonyms(literal);
+                                        if (sy != null) {
+                                            for (String s: sy) synonyms += "," + s;
+                                        }
+                                    }
+                                    table.put(literal, new Tagging.SOTuple(synonyms, objectlink == null ? "" : objectlink));
                                 }
                             }
                         } else {

source/net/yacy/cora/language/synonyms/SynonymLibrary.java

@@ -94,7 +94,8 @@ public class SynonymLibrary {
      * @return a list of synonyms bot without the requested word
      */
     public static Set<String> getSynonyms(String word) {
-        word = word.toLowerCase();
+        if (word == null) return null;
+        word = word.toLowerCase().trim();
         if (word.length() < 2) return null;
         String key = word.substring(0, 2);
         List<Set<String>> symsetlist = lib.get(key);