Replace instantiations of DatabaseException in indexing

[simantics/platform.git] / bundles / org.simantics.db.indexing / src / org / simantics / db / indexing / IndexUtils.java

diff --git a/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexUtils.java b/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexUtils.java
index 23e93ea1c9a7c743f80118dab680ca3026d4fa09..8b1a928b353497bbc733c1b89e7831e986659dd7 100644 (file)
--- a/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexUtils.java
+++ b/bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/IndexUtils.java
@@ -1,5 +1,6 @@
 package org.simantics.db.indexing;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
@@ -11,6 +12,7 @@ import org.apache.lucene.util.BytesRef;
 import org.apache.lucene.util.NumericUtils;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.NullProgressMonitor;
+import org.eclipse.core.runtime.SubMonitor;
 import org.simantics.databoard.Bindings;
 import org.simantics.db.ReadGraph;
 import org.simantics.db.Resource;
@@ -18,14 +20,20 @@ import org.simantics.db.Session;
 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
 import org.simantics.db.common.request.ObjectsWithType;
 import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.indexing.exception.IndexCorruptedException;
 import org.simantics.db.layer0.genericrelation.IndexQueries;
+import org.simantics.db.layer0.genericrelation.IndexedRelations;
 import org.simantics.db.layer0.util.Layer0Utils;
 import org.simantics.db.service.CollectionSupport;
 import org.simantics.layer0.Layer0;
 import org.simantics.operation.Layer0X;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class IndexUtils {
 
+    private static final Logger LOGGER = LoggerFactory.getLogger(IndexUtils.class);
+
     public static Collection<Map<String, Object>> find(ReadGraph graph, Resource index, String filter) throws DatabaseException {
        
         Collection<Map<String, Object>> indexResult = graph.syncRequest(new QueryIndex(index, filter), TransientCacheListener.<Collection<Map<String, Object>>>instance());
@@ -139,10 +147,25 @@ public class IndexUtils {
        mem.flush(progress);
                
        IndexedRelationsSearcher searcher = mem.get(session, L0X.DependenciesRelation, indexRoot);
-       return searcher.doList(progress, session);
-       
+        List<Object> results;
+        try {
+            results = searcher.doList(progress, session);
+        } catch (IndexCorruptedException e) {
+            LOGGER.error("Index is corrupted for indexRoot {}", indexRoot, e);
+            rebuild(session, progress);
+            // if this fails then no can do
+            searcher = mem.get(session, L0X.DependenciesRelation, indexRoot);
+            results = searcher.doList(progress, session);
+        }
+        return results;
     }
     
+    private static void rebuild(Session session, IProgressMonitor monitor) throws Exception {
+        LOGGER.error("Trying to rebuild index");
+        DatabaseIndexing.deleteAllIndexes();
+        session.getService(IndexedRelations.class).fullRebuild(SubMonitor.convert(monitor, 100), session);
+    }
+
     public static Term longTerm(String key, Long value) {
        BytesRef ref = new BytesRef();    
        NumericUtils.longToPrefixCoded( value, 0, ref );