SOLR-795 -- SpellCheckComponent supports building indices on optimize if configured in solrconfig.xml

git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@708653 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -70,6 +70,8 @@ New Features
 10. SOLR-651: Added TermVectorComponent for serving up term vector information, plus IDF.
     See http://wiki.apache.org/solr/TermVectorComponent (gsingers, Vaijanath N. Rao, Noble Paul)
 
+12. SOLR-795: SpellCheckComponent supports building indices on optimize if configured in solrconfig.xml
+    (Jason Rennie, shalin)
 
 Optimizations
 ----------------------
@@ -89,8 +91,6 @@ Bug Fixes
 
  4. SOLR-805: DisMax queries are not being cached in QueryResultCache (Todd Feak via koji)
 
- 5. SOLR-803, SOLR-827: Fix CoreAdminRequest#createCore (Sean Colombo via ryan)
- 
 
 Other Changes
 ----------------------
@@ -100,12 +100,6 @@ Other Changes
 
  3. DumpRequestHandler (/debug/dump): changed 'fieldName' to 'sourceInfo'. (ehatcher)
 
- 4. SOLR-657: Replace many deprecated calls with non-deprecated equivalents
-    (Lars Kotthoff via ryan)
-
- 5. SOLR-816:  Deprecate access to SolrConfig from IndexSchema.  Rather then access
-    SolrConfig from the schema, plugins should get the config from the core.  IndexSchema
-    still has access to the ResourceLoader.  (ryan)
 
 Build
 ----------------------

src/java/org/apache/solr/handler/component/SpellCheckComponent.java

@@ -51,7 +51,6 @@ import org.apache.solr.schema.FieldType;
 import org.apache.solr.schema.IndexSchema;
 import org.apache.solr.search.SolrIndexSearcher;
 import org.apache.solr.spelling.*;
-import org.apache.solr.util.RefCounted;
 import org.apache.solr.util.plugin.NamedListPluginLoader;
 import org.apache.solr.util.plugin.SolrCoreAware;
 import org.w3c.dom.NodeList;
@@ -273,10 +272,12 @@ public class SpellCheckComponent extends SearchComponent implements SolrCoreAwar
               }
             }
             // Register event listeners for this SpellChecker
-            core.registerFirstSearcherListener(new SpellCheckerListener(core, checker, true));
-            if (Boolean.parseBoolean((String)spellchecker.get("buildOnCommit")))   {
+            core.registerFirstSearcherListener(new SpellCheckerListener(core, checker, false, false));
+            boolean buildOnCommit = Boolean.parseBoolean((String) spellchecker.get("buildOnCommit"));
+            boolean buildOnOptimize = Boolean.parseBoolean((String) spellchecker.get("buildOnOptimize"));
+            if (buildOnCommit || buildOnOptimize)   {
               LOG.info("Registering newSearcher listener for spellchecker: " + checker.getDictionaryName());
-              core.registerNewSearcherListener(new SpellCheckerListener(core, checker, false));
+              core.registerNewSearcherListener(new SpellCheckerListener(core, checker, buildOnCommit, buildOnOptimize));
             }
           } else {
             throw new RuntimeException("Can't load spell checker: " + className);
@@ -316,12 +317,14 @@ public class SpellCheckComponent extends SearchComponent implements SolrCoreAwar
   private static class SpellCheckerListener implements SolrEventListener {
     private final SolrCore core;
     private final SolrSpellChecker checker;
-    private final boolean firstSearcher;
+    private final boolean buildOnCommit;
+    private final boolean buildOnOptimize;
 
-    public SpellCheckerListener(SolrCore core, SolrSpellChecker checker, boolean firstSearcher) {
+    public SpellCheckerListener(SolrCore core, SolrSpellChecker checker, boolean buildOnCommit, boolean buildOnOptimize) {
       this.core = core;
       this.checker = checker;
-      this.firstSearcher = firstSearcher;
+      this.buildOnCommit = buildOnCommit;
+      this.buildOnOptimize = buildOnOptimize;
     }
 
     public void init(NamedList args) {
@@ -329,7 +332,8 @@ public class SpellCheckComponent extends SearchComponent implements SolrCoreAwar
 
     public void newSearcher(SolrIndexSearcher newSearcher,
                             SolrIndexSearcher currentSearcher) {
-      if (firstSearcher) {
+      if (currentSearcher == null) {
+        // firstSearcher event
         try {
           LOG.info("Loading spell index for spellchecker: "
                   + checker.getDictionaryName());
@@ -339,6 +343,20 @@ public class SpellCheckComponent extends SearchComponent implements SolrCoreAwar
         }
       } else {
         // newSearcher event
+        if (buildOnCommit)  {
+          buildSpellIndex(newSearcher);
+        } else if (buildOnOptimize) {
+          if (newSearcher.getReader().isOptimized())  {
+            buildSpellIndex(newSearcher);
+          } else  {
+            LOG.info("Index is not optimized therefore skipping building spell check index for: " + checker.getDictionaryName());
+          }
+        }
+      }
+
+    }
+
+    private void buildSpellIndex(SolrIndexSearcher newSearcher) {
       try {
         LOG.info("Building spell index for spell checker: " + checker.getDictionaryName());
         checker.build(core, newSearcher);
@@ -348,8 +366,6 @@ public class SpellCheckComponent extends SearchComponent implements SolrCoreAwar
       }
     }
 
-    }
-
     public void postCommit() {
     }
   }