[HIVE-14201] Types: Remove hash-lookup from PrimitiveTypeInfo::getPrimitiveCategory()

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.2.0
• Component/s: Types
• Labels: Performance
• Assignee: Gopal Vijayaraghavan
• Reporter: Gopal Vijayaraghavan
• Created: 09/Jul/16 02:09
• Updated: 11/Jul/16 17:22

Description

  public PrimitiveCategory getPrimitiveCategory() {
    return getPrimitiveTypeEntry().primitiveCategory;
  }

  public PrimitiveTypeEntry getPrimitiveTypeEntry() {
    return PrimitiveObjectInspectorUtils.getTypeEntryFromTypeName(typeName);
  }


  /**
   * Get the TypeEntry for the given base type name (int, varchar, etc).
   */
  public static PrimitiveTypeEntry getTypeEntryFromTypeName(String typeName) {
    return typeNameToTypeEntry.get(typeName);
  }

  // Base type name to PrimitiveTypeEntry map.
  private static final Map<String, PrimitiveTypeEntry> typeNameToTypeEntry = new HashMap<String, PrimitiveTypeEntry>();

Not even a single intern() call there. SMH.