Fixed eager initilization of singletons, added fix for hive table comment, num buckets..

addons/hive-bridge/src/main/java/org/apache/hadoop/metadata/hive/bridge/HiveMetaStoreBridge.java

@@ -26,6 +26,7 @@ import org.apache.hadoop.hive.metastore.api.Index;
 import org.apache.hadoop.hive.metastore.api.Order;
 import org.apache.hadoop.hive.metastore.api.SerDeInfo;
 import org.apache.hadoop.hive.metastore.api.StorageDescriptor;
+import org.apache.hadoop.hive.metastore.api.hive_metastoreConstants;
 import org.apache.hadoop.hive.ql.metadata.Hive;
 import org.apache.hadoop.hive.ql.metadata.Partition;
 import org.apache.hadoop.hive.ql.metadata.Table;
@@ -263,11 +264,13 @@ public class HiveMetaStoreBridge {
             tableRef = new Referenceable(HiveDataTypes.HIVE_TABLE.getName());
             tableRef.set("name", hiveTable.getTableName());
             tableRef.set("owner", hiveTable.getOwner());
-            //todo fix
-            tableRef.set("createTime", hiveTable.getLastAccessTime());
+
+            tableRef.set("createTime", hiveTable.getMetadata().getProperty(hive_metastoreConstants.DDL_TIME));
             tableRef.set("lastAccessTime", hiveTable.getLastAccessTime());
             tableRef.set("retention", hiveTable.getRetention());
 
+            tableRef.set(HiveDataModelGenerator.COMMENT, hiveTable.getParameters().get(HiveDataModelGenerator.COMMENT));
+
             // add reference to the database
             tableRef.set("dbName", dbReference);
 
@@ -416,6 +419,8 @@ public class HiveMetaStoreBridge {
         serdeInfoStruct.set("parameters", serdeInfo.getParameters());
 
         sdReferenceable.set("serdeInfo", serdeInfoStruct);
+        sdReferenceable.set(HiveDataModelGenerator.STORAGE_NUM_BUCKETS, storageDesc.getNumBuckets());
+        sdReferenceable.set(HiveDataModelGenerator.STORAGE_IS_STORED_AS_SUB_DIRS, storageDesc.isStoredAsSubDirectories());
 
         // Will need to revisit this after we fix typesystem.
         /*
@@ -480,7 +485,7 @@ public class HiveMetaStoreBridge {
             Referenceable colReferenceable = new Referenceable(HiveDataTypes.HIVE_COLUMN.getName());
             colReferenceable.set("name", fs.getName());
             colReferenceable.set("type", fs.getType());
-            colReferenceable.set("comment", fs.getComment());
+            colReferenceable.set(HiveDataModelGenerator.COMMENT, fs.getComment());
 
             colList.add(createInstance(colReferenceable));
         }

addons/hive-bridge/src/main/java/org/apache/hadoop/metadata/hive/model/HiveDataModelGenerator.java

@@ -55,6 +55,10 @@ public class HiveDataModelGenerator {
     private final Map<String, EnumTypeDefinition> enumTypeDefinitionMap;
     private final Map<String, StructTypeDefinition> structTypeDefinitionMap;
 
+    public static final String COMMENT = "comment";
+    public static final String STORAGE_NUM_BUCKETS = "numBuckets";
+    public static final String STORAGE_IS_STORED_AS_SUB_DIRS = "storedAsSubDirectories";
+
     public HiveDataModelGenerator() {
         classTypeDefinitions = new HashMap<>();
         enumTypeDefinitionMap = new HashMap<>();
@@ -237,7 +241,7 @@ public class HiveDataModelGenerator {
                         Multiplicity.OPTIONAL, false, null),
                 new AttributeDefinition("compressed", DataTypes.BOOLEAN_TYPE.getName(),
                         Multiplicity.REQUIRED, false, null),
-                new AttributeDefinition("numBuckets", DataTypes.INT_TYPE.getName(),
+                new AttributeDefinition(STORAGE_NUM_BUCKETS, DataTypes.INT_TYPE.getName(),
                         Multiplicity.OPTIONAL, false, null),
                 new AttributeDefinition("serdeInfo", HiveDataTypes.HIVE_SERDE.getName(),
                         Multiplicity.OPTIONAL, false, null),
@@ -251,7 +255,7 @@ public class HiveDataModelGenerator {
                         Multiplicity.OPTIONAL, false, null),
                 //new AttributeDefinition("skewedInfo", DefinedTypes.HIVE_SKEWEDINFO.getName(),
                 // Multiplicity.OPTIONAL, false, null),
-                new AttributeDefinition("storedAsSubDirectories", DataTypes.BOOLEAN_TYPE.getName(),
+                new AttributeDefinition(STORAGE_IS_STORED_AS_SUB_DIRS, DataTypes.BOOLEAN_TYPE.getName(),
                         Multiplicity.OPTIONAL, false, null),
         };
 
@@ -326,7 +330,7 @@ public class HiveDataModelGenerator {
                         Multiplicity.REQUIRED, false, null),
                 new AttributeDefinition("type", DataTypes.STRING_TYPE.getName(),
                         Multiplicity.REQUIRED, false, null),
-                new AttributeDefinition("comment", DataTypes.STRING_TYPE.getName(),
+                new AttributeDefinition(COMMENT, DataTypes.STRING_TYPE.getName(),
                         Multiplicity.OPTIONAL, false, null),
         };
         HierarchicalTypeDefinition<ClassType> definition =
@@ -377,6 +381,8 @@ public class HiveDataModelGenerator {
                         Multiplicity.OPTIONAL, false, null),
                 new AttributeDefinition("lastAccessTime", DataTypes.INT_TYPE.getName(),
                         Multiplicity.OPTIONAL, false, null),
+                new AttributeDefinition(COMMENT, DataTypes.STRING_TYPE.getName(),
+                        Multiplicity.OPTIONAL, false, null),
                 new AttributeDefinition("retention", DataTypes.INT_TYPE.getName(),
                         Multiplicity.OPTIONAL, false, null),
                 new AttributeDefinition("sd", HiveDataTypes.HIVE_STORAGEDESC.getName(),

addons/hive-bridge/src/test/java/org/apache/hadoop/metadata/hive/hook/HiveHookIT.java

@@ -25,6 +25,7 @@ import org.apache.hadoop.hive.ql.Driver;
 import org.apache.hadoop.hive.ql.session.SessionState;
 import org.apache.hadoop.metadata.MetadataServiceClient;
 import org.apache.hadoop.metadata.hive.bridge.HiveMetaStoreBridge;
+import org.apache.hadoop.metadata.hive.model.HiveDataModelGenerator;
 import org.apache.hadoop.metadata.hive.model.HiveDataTypes;
 import org.apache.hadoop.metadata.typesystem.Referenceable;
 import org.apache.log4j.spi.LoggerFactory;
@@ -118,7 +119,7 @@ public class HiveHookIT {
 
     private String createTable(boolean partition) throws Exception {
         String tableName = tableName();
-        runCommand("create table " + tableName + "(id int, name string)" + (partition ? " partitioned by(dt string)"
+        runCommand("create table " + tableName + "(id int, name string) comment 'table comment' " + (partition ? " partitioned by(dt string)"
                 : ""));
         return tableName;
     }
@@ -137,6 +138,7 @@ public class HiveHookIT {
         String tableId = assertTableIsRegistered(DEFAULT_DB, tableName);
         Referenceable tableRef = dgiCLient.getEntity(tableId);
         Assert.assertEquals(tableRef.get("tableType"), TableType.MANAGED_TABLE.name());
+        Assert.assertEquals(tableRef.get(HiveDataModelGenerator.COMMENT), "table comment");
 
         //Create table where database doesn't exist, will create database instance as well
         assertDatabaseIsRegistered(DEFAULT_DB);

repository/src/main/java/org/apache/hadoop/metadata/RepositoryMetadataModule.java

@@ -48,28 +48,28 @@ public class RepositoryMetadataModule extends com.google.inject.AbstractModule {
         ThrowingProviderBinder.create(binder())
                 .bind(GraphProvider.class, TitanGraph.class)
                 .to(TitanGraphProvider.class)
-                .in(Scopes.SINGLETON);
+                .asEagerSingleton();
 
         // allow for dynamic binding of the metadata repo & graph service
 
         // bind the MetadataRepositoryService interface to an implementation
-        bind(MetadataRepository.class).to(GraphBackedMetadataRepository.class);
+        bind(MetadataRepository.class).to(GraphBackedMetadataRepository.class).asEagerSingleton();
 
         // bind the ITypeStore interface to an implementation
-        bind(ITypeStore.class).to(GraphBackedTypeStore.class);
+        bind(ITypeStore.class).to(GraphBackedTypeStore.class).asEagerSingleton();
 
         // bind the GraphService interface to an implementation
         // bind(GraphService.class).to(graphServiceClass);
 
         // bind the MetadataService interface to an implementation
-        bind(MetadataService.class).to(DefaultMetadataService.class);
+        bind(MetadataService.class).to(DefaultMetadataService.class).asEagerSingleton();
 
         // bind the DiscoveryService interface to an implementation
-        bind(DiscoveryService.class).to(GraphBackedDiscoveryService.class);
+        bind(DiscoveryService.class).to(GraphBackedDiscoveryService.class).asEagerSingleton();
 
-        bind(SearchIndexer.class).to(GraphBackedSearchIndexer.class);
+        bind(SearchIndexer.class).to(GraphBackedSearchIndexer.class).asEagerSingleton();
 
-        bind(LineageService.class).to(HiveLineageService.class);
+        bind(LineageService.class).to(HiveLineageService.class).asEagerSingleton();
 
         MethodInterceptor interceptor = new GraphTransactionInterceptor();
         requestInjection(interceptor);

repository/src/main/java/org/apache/hadoop/metadata/services/DefaultMetadataService.java

@@ -89,10 +89,11 @@ public class DefaultMetadataService implements MetadataService {
     private void restoreTypeSystem() {
         LOG.info("Restoring type system from the store");
         try {
+            createSuperTypes();
+
             TypesDef typesDef = typeStore.restore();
             typeSystem.defineTypes(typesDef);
 
-            createSuperTypes();
         } catch (MetadataException e) {
             throw new RuntimeException(e);
         }

repository/src/test/java/org/apache/hadoop/metadata/discovery/HiveLineageServiceTest.java

@@ -57,11 +57,6 @@ import java.util.List;
 @Guice(modules = RepositoryMetadataModule.class)
 public class HiveLineageServiceTest {
 
-    static {
-        // this would override super types creation if not first thing
-        TypeSystem.getInstance().reset();
-    }
-
     @Inject
     private DefaultMetadataService metadataService;