Java API - Add missing HEADER_LEVEL logging (#1104)

java/rocksjni/loggerjnicallback.cc

@@ -60,6 +60,9 @@ void LoggerJniCallback::Logv(const InfoLogLevel log_level,
       case rocksdb::InfoLogLevel::FATAL_LEVEL:
         jlog_level = InfoLogLevelJni::FATAL_LEVEL(env);
         break;
+      case rocksdb::InfoLogLevel::HEADER_LEVEL:
+        jlog_level = InfoLogLevelJni::HEADER_LEVEL(env);
+        break;
       default:
         jlog_level = InfoLogLevelJni::FATAL_LEVEL(env);
         break;

java/rocksjni/portal.h

@@ -676,15 +676,20 @@ class InfoLogLevelJni {
       return getEnum(env, "FATAL_LEVEL");
     }
 
+    // Get the HEADER_LEVEL enum field of org.rocksdb.InfoLogLevel
+    static jobject HEADER_LEVEL(JNIEnv* env) {
+      return getEnum(env, "HEADER_LEVEL");
+    }
+
  private:
-    // Get the java class id of org.rocksdb.WBWIRocksIterator.WriteType.
+    // Get the java class id of org.rocksdb.InfoLogLevel
     static jclass getJClass(JNIEnv* env) {
       jclass jclazz = env->FindClass("org/rocksdb/InfoLogLevel");
       assert(jclazz != nullptr);
       return jclazz;
     }
 
-    // Get an enum field of org.rocksdb.WBWIRocksIterator.WriteType
+    // Get an enum field of org.rocksdb.InfoLogLevel
     static jobject getEnum(JNIEnv* env, const char name[]) {
       jclass jclazz = getJClass(env);
       jfieldID jfid =

java/src/main/java/org/rocksdb/InfoLogLevel.java

@@ -9,7 +9,8 @@ public enum InfoLogLevel {
   WARN_LEVEL((byte)2),
   ERROR_LEVEL((byte)3),
   FATAL_LEVEL((byte)4),
-  NUM_INFO_LOG_LEVELS((byte)5);
+  HEADER_LEVEL((byte)5),
+  NUM_INFO_LOG_LEVELS((byte)6);
 
   private final byte value_;