add high level defineTypes method on TypeSystem

typesystem/src/main/java/org/apache/hadoop/metadata/types/TypeSystem.java

@@ -21,6 +21,7 @@ package org.apache.hadoop.metadata.types;
 import com.google.common.collect.ImmutableList;
 import org.apache.hadoop.metadata.MetadataException;
 import org.apache.hadoop.metadata.MetadataException;
+import org.apache.hadoop.metadata.TypesDef;
 
 import java.lang.reflect.Constructor;
 import java.util.*;
@@ -119,6 +120,22 @@ public class TypeSystem {
         return transientTypes.defineTypes();
     }
 
+    public Map<String, IDataType> defineTypes(TypesDef typesDef)
+            throws MetadataException {
+
+        for(EnumTypeDefinition enumDef : typesDef.enumTypesAsJavaList()) {
+            defineEnumType(enumDef);
+        }
+
+        ImmutableList<StructTypeDefinition> structDefs = ImmutableList.copyOf(typesDef.structTypesAsJavaList());
+        ImmutableList<HierarchicalTypeDefinition<TraitType>> traitDefs =
+                ImmutableList.copyOf(typesDef.traitTypesAsJavaList());
+        ImmutableList<HierarchicalTypeDefinition<ClassType>> classDefs =
+                ImmutableList.copyOf(typesDef.classTypesAsJavaList());
+
+        return defineTypes(structDefs, traitDefs, classDefs);
+    }
+
     public Map<String, IDataType> defineTypes(ImmutableList<StructTypeDefinition> structDefs,
                                               ImmutableList<HierarchicalTypeDefinition<TraitType>> traitDefs,
                                               ImmutableList<HierarchicalTypeDefinition<ClassType>> classDefs)

typesystem/src/main/scala/org/apache/hadoop/metadata/TypesDef.scala

@@ -23,4 +23,25 @@ import org.apache.hadoop.metadata.types._
 case class TypesDef(enumTypes: Seq[EnumTypeDefinition],
                     structTypes: Seq[StructTypeDefinition],
                     traitTypes: Seq[HierarchicalTypeDefinition[TraitType]],
-                    classTypes: Seq[HierarchicalTypeDefinition[ClassType]])
+                    classTypes: Seq[HierarchicalTypeDefinition[ClassType]]) {
+
+  def enumTypesAsJavaList() =  {
+    import scala.collection.JavaConverters._
+    enumTypes.asJava
+  }
+
+  def structTypesAsJavaList() =  {
+    import scala.collection.JavaConverters._
+    structTypes.asJava
+  }
+
+  def traitTypesAsJavaList() =  {
+    import scala.collection.JavaConverters._
+    traitTypes.asJava
+  }
+
+  def classTypesAsJavaList() =  {
+    import scala.collection.JavaConverters._
+    classTypes.asJava
+  }
+}