make spatial filters work

index-common/src/main/java/com/metamx/druid/index/column/BitmapIndex.java

@@ -27,6 +27,7 @@ public interface BitmapIndex
 {
   public int getCardinality();
   public String getValue(int index);
+  public boolean hasNulls();
   public ImmutableConciseSet getConciseSet(String value);
   public ImmutableConciseSet getConciseSet(int idx);
 }

index-common/src/main/java/com/metamx/druid/index/serde/BitmapIndexColumnPartSupplier.java

@@ -58,6 +58,12 @@ public class BitmapIndexColumnPartSupplier implements Supplier<BitmapIndex>
         return dictionary.get(index);
       }
 
+      @Override
+      public boolean hasNulls()
+      {
+        return dictionary.indexOf(null) >= 0;
+      }
+
       @Override
       public ImmutableConciseSet getConciseSet(String value)
       {

index-common/src/main/java/com/metamx/druid/index/v1/IndexMerger.java

@@ -790,6 +790,9 @@ public class IndexMerger
       int count = 0;
       for (String dimVal : IndexedIterable.create(dimVals)) {
         progress.progress();
+        if (dimVal == null) {
+          continue;
+        }
 
         List<String> stringCoords = Lists.newArrayList(SPLITTER.split(dimVal));
         float[] coords = new float[stringCoords.size()];

index-common/src/main/java/com/metamx/druid/index/v1/SpatialDimensionRowFormatter.java

@@ -26,6 +26,7 @@ import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
+import com.google.common.primitives.Floats;
 import com.metamx.druid.input.InputRow;
 
 import java.util.Arrays;
@@ -122,17 +123,33 @@ public class SpatialDimensionRowFormatter
 
     for (SpatialDimensionSchema spatialDimension : spatialDimensions) {
       List<String> spatialDimVals = Lists.newArrayList();
+
       for (String partialSpatialDim : spatialDimension.getDims()) {
         List<String> dimVals = row.getDimension(partialSpatialDim);
-        if (dimVals == null || dimVals.isEmpty()) {
+        if (isSpatialDimValsValid(dimVals)) {
-          return retVal;
+          spatialDimVals.addAll(dimVals);
         }
-        spatialDimVals.addAll(dimVals);
       }
-      spatialLookup.put(spatialDimension.getDimName(), Arrays.asList(JOINER.join(spatialDimVals)));
+
-      finalDims.add(spatialDimension.getDimName());
+      if (!spatialDimVals.isEmpty()) {
+        spatialLookup.put(spatialDimension.getDimName(), Arrays.asList(JOINER.join(spatialDimVals)));
+        finalDims.add(spatialDimension.getDimName());
+      }
     }
 
     return retVal;
   }
+
+  private boolean isSpatialDimValsValid(List<String> dimVals)
+  {
+    if (dimVals == null || dimVals.isEmpty()) {
+      return false;
+    }
+    for (String dimVal : dimVals) {
+      if (Floats.tryParse(dimVal) == null) {
+        return false;
+      }
+    }
+    return true;
+  }
 }

pom.xml

@@ -162,7 +162,7 @@
             <dependency>
                 <groupId>com.google.guava</groupId>
                 <artifactId>guava</artifactId>
-                <version>11.0.1</version>
+                <version>14.0.1</version>
             </dependency>
             <dependency>
                 <groupId>com.google.inject</groupId>

server/src/main/java/com/metamx/druid/index/brita/RegexFilter.java

@@ -40,9 +40,9 @@ public class RegexFilter extends DimensionPredicateFilter
           Pattern compiled = Pattern.compile(pattern);
 
           @Override
-          public boolean apply(@Nullable String input)
+          public boolean apply(String input)
           {
-            return compiled.matcher(input).find();
+            return (input != null) && compiled.matcher(input).find();
           }
         }
     );

server/src/main/java/com/metamx/druid/index/v1/IncrementalIndexStorageAdapter.java

@@ -227,7 +227,7 @@ public class IncrementalIndexStorageAdapter implements StorageAdapter
                             numAdvanced++;
                           }
                         } else {
-                          Iterators.skip(baseIter, numAdvanced);
+                          Iterators.advance(baseIter, numAdvanced);
                           if (baseIter.hasNext()) {
                             currEntry.set(baseIter.next());
                           }

server/src/main/java/com/metamx/druid/index/v1/QueryableIndexStorageAdapter.java

@@ -237,8 +237,10 @@ public class QueryableIndexStorageAdapter extends BaseStorageAdapter
     if (!column.getCapabilities().hasBitmapIndexes()) {
       return new ImmutableConciseSet();
     }
+    // This is a workaround given the current state of indexing, I feel shame
+    final int index = column.getBitmapIndex().hasNulls() ? idx + 1 : idx;
 
-    return column.getBitmapIndex().getConciseSet(idx);
+    return column.getBitmapIndex().getConciseSet(index);
   }
 
   public ImmutableRTree getRTreeSpatialIndex(String dimension)

server/src/test/java/com/metamx/druid/index/brita/SpatialFilterTest.java

@@ -61,7 +61,7 @@ import java.util.List;
 import java.util.Random;
 
 /**
-*/
+ */
 @RunWith(Parameterized.class)
 public class SpatialFilterTest
 {
@@ -175,6 +175,19 @@ public class SpatialFilterTest
             )
         )
     );
+    theIndex.add(
+        new MapBasedInputRow(
+            new DateTime("2013-01-05").getMillis(),
+            DIMS,
+            ImmutableMap.<String, Object>of(
+                "timestamp", new DateTime("2013-01-05").toString(),
+                "dim", "foo",
+                "lat", "_mmx.unknown",
+                "long", "_mmx.unknown",
+                "val", 101l
+            )
+        )
+    );
 
     // Add a bunch of random points
     Random rand = new Random();
@@ -292,6 +305,19 @@ public class SpatialFilterTest
               )
           )
       );
+      first.add(
+          new MapBasedInputRow(
+              new DateTime("2013-01-05").getMillis(),
+              DIMS,
+              ImmutableMap.<String, Object>of(
+                  "timestamp", new DateTime("2013-01-05").toString(),
+                  "dim", "foo",
+                  "lat", "_mmx.unknown",
+                  "long", "_mmx.unknown",
+                  "val", 101l
+              )
+          )
+      );
       second.add(
           new MapBasedInputRow(
               new DateTime("2013-01-04").getMillis(),