LUCENE-5339: switch to DocumentBuilder.build instead of FacetIndexWriter

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene5339@1543530 13f79535-47bb-0310-9956-ffa450edef68

TODO

@@ -2,6 +2,7 @@ nocommit this!
 
 TODO
   - associations
+    - can we do index time detection of invalid mixing?
   - cutover taxo writer/reader to pathToString/stringToPath
   - wrap an IW instead of extending one?  or, FacetDocument?
   - re-enable ALL_BUT_DIM somehow?

lucene/facet/src/java/org/apache/lucene/facet/simple/DocumentBuilder.java

@@ -42,25 +42,21 @@ import org.apache.lucene.util.ArrayUtil;
 import org.apache.lucene.util.BytesRef;
 import org.apache.lucene.util.IntsRef;
 
-public class FacetIndexWriter extends IndexWriter {
+/** Pass the {@link #Document} to index to {@link #build},
+ *  to translate any added {@link FacetField}s into
+ *  indexable and storable fields.  It's safe to share a
+ *  single instance of this across multiple threads. */
 
+public class DocumentBuilder {
   private final TaxonomyWriter taxoWriter;
   private final FacetsConfig config;
 
-  public FacetIndexWriter(Directory d, IndexWriterConfig conf, TaxonomyWriter taxoWriter, FacetsConfig config) throws IOException {
+  public DocumentBuilder(TaxonomyWriter taxoWriter, FacetsConfig config) {
-    super(d, conf);
     this.taxoWriter = taxoWriter;
     this.config = config;
   }
 
-  // nocommit maybe we could somehow "own" TaxonomyWriter
+  public IndexDocument build(IndexDocument doc) throws IOException {
-  // too?  commit it in commit, close it in close, etc?
-
-  // nocommit also updateDocument, addDocument, addDocuments
-
-  @Override
-  public void addDocument(final IndexDocument doc) throws IOException {
-
     // Find all FacetFields, collated by the actual field:
     Map<String,List<FacetField>> byField = new HashMap<String,List<FacetField>>();
 
@@ -137,7 +133,7 @@ public class FacetIndexWriter extends IndexWriter {
     //System.out.println("all indexed: " + allIndexedFields);
     //System.out.println("all stored: " + allStoredFields);
 
-    super.addDocument(new IndexDocument() {
+    return new IndexDocument() {
         @Override
         public Iterable<IndexableField> indexableFields() {
           return allIndexedFields;
@@ -147,7 +143,7 @@ public class FacetIndexWriter extends IndexWriter {
         public Iterable<StorableField> storableFields() {
           return allStoredFields;
         }
-      });
+      };
   }
 
   private void processFacetFields(Map<String,List<FacetField>> byField, List<Field> addedIndexedFields, List<Field> addedStoredFields) throws IOException {
@@ -248,10 +244,9 @@ public class FacetIndexWriter extends IndexWriter {
     }
   }
 
-  // nocommit open this up
+  /** Encodes ordinals into a BytesRef; expert: subclass can
-  /** We can open this up if/when we really need
+   *  override this to change encoding. */
-   *  pluggability on the encoding. */
+  protected BytesRef dedupAndEncode(IntsRef ordinals) {
-  private final BytesRef dedupAndEncode(IntsRef ordinals) {
     Arrays.sort(ordinals.ints, ordinals.offset, ordinals.length);
     byte[] bytes = new byte[5*ordinals.length];
     int lastOrd = -1;
@@ -298,7 +293,7 @@ public class FacetIndexWriter extends IndexWriter {
     return new BytesRef(bytes, 0, upto);
   }
 
-  // nocommit move these constants / methods to Util?
+  // nocommit move all of this to Util?
 
   // Joins the path components together:
   private static final char DELIM_CHAR = '\u001F';

lucene/facet/src/java/org/apache/lucene/facet/simple/SimpleDrillDownQuery.java

@@ -53,7 +53,7 @@ import org.apache.lucene.search.TermQuery;
 public final class SimpleDrillDownQuery extends Query {
 
   private static Term term(String field, String dim, String[] path) {
-    return new Term(field, FacetIndexWriter.pathToString(dim, path));
+    return new Term(field, FacetDocument.pathToString(dim, path));
   }
 
   private final FacetsConfig config;

lucene/facet/src/java/org/apache/lucene/facet/simple/SortedSetDocValuesFacetCounts.java

@@ -230,7 +230,7 @@ public class SortedSetDocValuesFacetCounts extends Facets {
       throw new IllegalArgumentException("path must be length=1");
     }
 
-    int ord = (int) dv.lookupTerm(new BytesRef(FacetIndexWriter.pathToString(dim, path)));
+    int ord = (int) dv.lookupTerm(new BytesRef(FacetDocument.pathToString(dim, path)));
     if (ord < 0) {
       return -1;
     }

lucene/facet/src/java/org/apache/lucene/facet/simple/SortedSetDocValuesReaderState.java

@@ -110,7 +110,7 @@ public final class SortedSetDocValuesReaderState {
     // support arbitrary hierarchy:
     for(int ord=0;ord<valueCount;ord++) {
       dv.lookupOrd(ord, spare);
-      String[] components = FacetIndexWriter.stringToPath(spare.utf8ToString());
+      String[] components = FacetDocument.stringToPath(spare.utf8ToString());
       if (components.length != 2) {
         throw new IllegalArgumentException("this class can only handle 2 level hierarchy (dim/value); got: " + Arrays.toString(components) + " " + spare.utf8ToString());
       }

lucene/facet/src/test/org/apache/lucene/facet/simple/TestSimpleDrillSideways.java

@@ -89,35 +89,36 @@ public class TestSimpleDrillSideways extends FacetTestCase {
     FacetsConfig config = new FacetsConfig();
     config.setHierarchical("Publish Date");
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), taxoWriter, config);
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, config);
 
     Document doc = new Document();
     doc.add(new FacetField("Author", "Bob"));
     doc.add(new FacetField("Publish Date", "2010", "10", "15"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Lisa"));
     doc.add(new FacetField("Publish Date", "2010", "10", "20"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Lisa"));
     doc.add(new FacetField("Publish Date", "2012", "1", "1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Susan"));
     doc.add(new FacetField("Publish Date", "2012", "1", "7"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Frank"));
     doc.add(new FacetField("Publish Date", "1999", "5", "5"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     //System.out.println("searcher=" + searcher);

lucene/facet/src/test/org/apache/lucene/facet/simple/TestSortedSetDocValuesFacets.java

@@ -46,24 +46,25 @@ public class TestSortedSetDocValuesFacets extends FacetTestCase {
     Directory dir = newDirectory();
 
     FacetsConfig config = new FacetsConfig();
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), null, config);
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    FacetDocument facetDoc = new FacetDocument(null, config);
 
     Document doc = new Document();
     doc.add(new SortedSetDocValuesFacetField("a", "foo"));
     doc.add(new SortedSetDocValuesFacetField("a", "bar"));
     doc.add(new SortedSetDocValuesFacetField("a", "zoo"));
     doc.add(new SortedSetDocValuesFacetField("b", "baz"));
-    writer.addDocument(doc);
+    writer.addDocument(facetDoc.build(doc));
     if (random().nextBoolean()) {
       writer.commit();
     }
 
     doc = new Document();
     doc.add(new SortedSetDocValuesFacetField("a", "foo"));
-    writer.addDocument(doc);
+    writer.addDocument(facetDoc.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // Per-top-reader state:
@@ -94,24 +95,25 @@ public class TestSortedSetDocValuesFacets extends FacetTestCase {
     assumeTrue("Test requires SortedSetDV support", defaultCodecSupportsSortedSet());
     Directory dir = newDirectory();
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), null, new FacetsConfig());
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(null, new FacetsConfig());
 
     Document doc = new Document();
     doc.add(new SortedSetDocValuesFacetField("a", "foo"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
-    IndexReader r = DirectoryReader.open(writer, true);
+    IndexReader r = writer.getReader();
     SortedSetDocValuesReaderState state = new SortedSetDocValuesReaderState(r);
 
     doc = new Document();
     doc.add(new SortedSetDocValuesFacetField("a", "bar"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new SortedSetDocValuesFacetField("a", "baz"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
 
     SimpleFacetsCollector c = new SimpleFacetsCollector();
 
@@ -135,11 +137,12 @@ public class TestSortedSetDocValuesFacets extends FacetTestCase {
     assumeTrue("Test requires SortedSetDV support", defaultCodecSupportsSortedSet());
     Directory dir = newDirectory();
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), null, new FacetsConfig());
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(null, new FacetsConfig());
 
     Document doc = new Document();
     doc.add(new SortedSetDocValuesFacetField("a", "foo1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     if (random().nextBoolean()) {
       writer.commit();
@@ -148,7 +151,7 @@ public class TestSortedSetDocValuesFacets extends FacetTestCase {
     doc = new Document();
     doc.add(new SortedSetDocValuesFacetField("a", "foo2"));
     doc.add(new SortedSetDocValuesFacetField("b", "bar1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     if (random().nextBoolean()) {
       writer.commit();
@@ -158,10 +161,10 @@ public class TestSortedSetDocValuesFacets extends FacetTestCase {
     doc.add(new SortedSetDocValuesFacetField("a", "foo3"));
     doc.add(new SortedSetDocValuesFacetField("b", "bar2"));
     doc.add(new SortedSetDocValuesFacetField("c", "baz1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // Per-top-reader state:

lucene/facet/src/test/org/apache/lucene/facet/simple/TestTaxonomyFacetAssociations.java

@@ -69,8 +69,8 @@ public class TestTaxonomyFacetAssociations extends FacetTestCase {
     config.setIndexFieldName("int", "$facets.int");
     config.setIndexFieldName("float", "$facets.float");
 
-    IndexWriterConfig iwc = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
-    IndexWriter writer = new FacetIndexWriter(dir, iwc, taxoWriter, config);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, config);
 
     // index documents, 50% have only 'b' and all have 'a'
     for (int i = 0; i < 110; i++) {
@@ -85,11 +85,11 @@ public class TestTaxonomyFacetAssociations extends FacetTestCase {
           doc.add(new AssociationFacetField(0.2f, "float", "b"));
         }
       }
-      writer.addDocument(doc);
+      writer.addDocument(builder.build(doc));
     }
     
     taxoWriter.close();
-    reader = DirectoryReader.open(writer, true);
+    reader = writer.getReader();
     writer.close();
     taxoReader = new DirectoryTaxonomyReader(taxoDir);
   }

lucene/facet/src/test/org/apache/lucene/facet/simple/TestTaxonomyFacetCounts.java

@@ -61,35 +61,36 @@ public class TestTaxonomyFacetCounts extends FacetTestCase {
     FacetsConfig config = new FacetsConfig();
     config.setHierarchical("Publish Date");
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), taxoWriter, config);
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, config);
 
     Document doc = new Document();
     doc.add(new FacetField("Author", "Bob"));
     doc.add(new FacetField("Publish Date", "2010", "10", "15"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Lisa"));
     doc.add(new FacetField("Publish Date", "2010", "10", "20"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Lisa"));
     doc.add(new FacetField("Publish Date", "2012", "1", "1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Susan"));
     doc.add(new FacetField("Publish Date", "2012", "1", "7"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new FacetField("Author", "Frank"));
     doc.add(new FacetField("Publish Date", "1999", "5", "5"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // NRT open
@@ -147,11 +148,12 @@ public class TestTaxonomyFacetCounts extends FacetTestCase {
     // main index:
     DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir, IndexWriterConfig.OpenMode.CREATE);
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), taxoWriter, new FacetsConfig());
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, new FacetsConfig());
 
     Document doc = new Document();
     doc.add(new FacetField("a", "foo1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     if (random().nextBoolean()) {
       writer.commit();
@@ -160,7 +162,7 @@ public class TestTaxonomyFacetCounts extends FacetTestCase {
     doc = new Document();
     doc.add(new FacetField("a", "foo2"));
     doc.add(new FacetField("b", "bar1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     if (random().nextBoolean()) {
       writer.commit();
@@ -170,10 +172,10 @@ public class TestTaxonomyFacetCounts extends FacetTestCase {
     doc.add(new FacetField("a", "foo3"));
     doc.add(new FacetField("b", "bar2"));
     doc.add(new FacetField("c", "baz1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // NRT open
@@ -209,14 +211,15 @@ public class TestTaxonomyFacetCounts extends FacetTestCase {
 
     FacetsConfig config = new FacetsConfig();
     config.setIndexFieldName("a", "$facets2");
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), taxoWriter, config);
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, config);
 
     Document doc = new Document();
     doc.add(new FacetField("a", "foo1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // NRT open
@@ -280,12 +283,13 @@ public class TestTaxonomyFacetCounts extends FacetTestCase {
         }
       });
     TaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir, IndexWriterConfig.OpenMode.CREATE);
-    IndexWriter writer = new FacetIndexWriter(dir, iwc, taxoWriter, new FacetsConfig());
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir, iwc);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, new FacetsConfig());
 
     Document doc = new Document();
     doc.add(newTextField("field", "text", Field.Store.NO));
     doc.add(new FacetField("a", "path"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
     writer.close();
     taxoWriter.close();
     dir.close();
@@ -296,20 +300,20 @@ public class TestTaxonomyFacetCounts extends FacetTestCase {
     Directory dir = newDirectory();
     Directory taxoDir = newDirectory();
     DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir, IndexWriterConfig.OpenMode.CREATE);
-    IndexWriterConfig iwc = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
     FacetsConfig config = new FacetsConfig();
     config.setHierarchical("a");
     config.setMultiValued("a");
-    IndexWriter writer = new FacetIndexWriter(dir, iwc, taxoWriter, config);
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, config);
 
     Document doc = new Document();
     doc.add(newTextField("field", "text", Field.Store.NO));
     doc.add(new FacetField("a", "path", "x"));
     doc.add(new FacetField("a", "path", "y"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // NRT open

lucene/facet/src/test/org/apache/lucene/facet/simple/TestTaxonomyFacetSumValueSource.java

@@ -63,37 +63,38 @@ public class TestTaxonomyFacetSumValueSource extends FacetTestCase {
     // main index:
     DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir, IndexWriterConfig.OpenMode.CREATE);
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), taxoWriter, new FacetsConfig());
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, new FacetsConfig());
 
     // Reused across documents, to add the necessary facet
     // fields:
     Document doc = new Document();
     doc.add(new IntField("num", 10, Field.Store.NO));
     doc.add(new FacetField("Author", "Bob"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new IntField("num", 20, Field.Store.NO));
     doc.add(new FacetField("Author", "Lisa"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new IntField("num", 30, Field.Store.NO));
     doc.add(new FacetField("Author", "Lisa"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new IntField("num", 40, Field.Store.NO));
     doc.add(new FacetField("Author", "Susan"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     doc = new Document();
     doc.add(new IntField("num", 45, Field.Store.NO));
     doc.add(new FacetField("Author", "Frank"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // NRT open
@@ -129,12 +130,13 @@ public class TestTaxonomyFacetSumValueSource extends FacetTestCase {
     // main index:
     DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(taxoDir, IndexWriterConfig.OpenMode.CREATE);
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), taxoWriter, new FacetsConfig());
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, new FacetsConfig());
 
     Document doc = new Document();
     doc.add(new IntField("num", 10, Field.Store.NO));
     doc.add(new FacetField("a", "foo1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     if (random().nextBoolean()) {
       writer.commit();
@@ -144,7 +146,7 @@ public class TestTaxonomyFacetSumValueSource extends FacetTestCase {
     doc.add(new IntField("num", 20, Field.Store.NO));
     doc.add(new FacetField("a", "foo2"));
     doc.add(new FacetField("b", "bar1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     if (random().nextBoolean()) {
       writer.commit();
@@ -155,10 +157,10 @@ public class TestTaxonomyFacetSumValueSource extends FacetTestCase {
     doc.add(new FacetField("a", "foo3"));
     doc.add(new FacetField("b", "bar2"));
     doc.add(new FacetField("c", "baz1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // NRT open
@@ -196,15 +198,16 @@ public class TestTaxonomyFacetSumValueSource extends FacetTestCase {
     FacetsConfig config = new FacetsConfig();
     config.setIndexFieldName("a", "$facets2");
 
-    IndexWriter writer = new FacetIndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())), taxoWriter, config);
+    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
+    DocumentBuilder builder = new DocumentBuilder(taxoWriter, config);
 
     Document doc = new Document();
     doc.add(new IntField("num", 10, Field.Store.NO));
     doc.add(new FacetField("a", "foo1"));
-    writer.addDocument(doc);
+    writer.addDocument(builder.build(doc));
 
     // NRT open
-    IndexSearcher searcher = newSearcher(DirectoryReader.open(writer, true));
+    IndexSearcher searcher = newSearcher(writer.getReader());
     writer.close();
 
     // NRT open