1 files changed, 93 insertions, 0 deletions
diff --git a/src/rocksdb/java/rocksjni/memtablejni.cc b/src/rocksdb/java/rocksjni/memtablejni.cc
new file mode 100644
index 000000000..1188c5e59
--- /dev/null
+++ b/src/rocksdb/java/rocksjni/memtablejni.cc
@@ -0,0 +1,93 @@
+// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+//
+// This file implements the "bridge" between Java and C++ for MemTables.
+
+#include "include/org_rocksdb_HashLinkedListMemTableConfig.h"
+#include "include/org_rocksdb_HashSkipListMemTableConfig.h"
+#include "include/org_rocksdb_SkipListMemTableConfig.h"
+#include "include/org_rocksdb_VectorMemTableConfig.h"
+#include "rocksdb/memtablerep.h"
+#include "rocksjni/portal.h"
+
+/*
+ * Class:     org_rocksdb_HashSkipListMemTableConfig
+ * Method:    newMemTableFactoryHandle
+ * Signature: (JII)J
+ */
+jlong Java_org_rocksdb_HashSkipListMemTableConfig_newMemTableFactoryHandle(
+    JNIEnv* env, jobject /*jobj*/, jlong jbucket_count, jint jheight,
+    jint jbranching_factor) {
+  ROCKSDB_NAMESPACE::Status s =
+      ROCKSDB_NAMESPACE::JniUtil::check_if_jlong_fits_size_t(jbucket_count);
+  if (s.ok()) {
+    return reinterpret_cast<jlong>(ROCKSDB_NAMESPACE::NewHashSkipListRepFactory(
+        static_cast<size_t>(jbucket_count), static_cast<int32_t>(jheight),
+        static_cast<int32_t>(jbranching_factor)));
+  }
+  ROCKSDB_NAMESPACE::IllegalArgumentExceptionJni::ThrowNew(env, s);
+  return 0;
+}
+
+/*
+ * Class:     org_rocksdb_HashLinkedListMemTableConfig
+ * Method:    newMemTableFactoryHandle
+ * Signature: (JJIZI)J
+ */
+jlong Java_org_rocksdb_HashLinkedListMemTableConfig_newMemTableFactoryHandle(
+    JNIEnv* env, jobject /*jobj*/, jlong jbucket_count,
+    jlong jhuge_page_tlb_size, jint jbucket_entries_logging_threshold,
+    jboolean jif_log_bucket_dist_when_flash, jint jthreshold_use_skiplist) {
+  ROCKSDB_NAMESPACE::Status statusBucketCount =
+      ROCKSDB_NAMESPACE::JniUtil::check_if_jlong_fits_size_t(jbucket_count);
+  ROCKSDB_NAMESPACE::Status statusHugePageTlb =
+      ROCKSDB_NAMESPACE::JniUtil::check_if_jlong_fits_size_t(
+          jhuge_page_tlb_size);
+  if (statusBucketCount.ok() && statusHugePageTlb.ok()) {
+    return reinterpret_cast<jlong>(ROCKSDB_NAMESPACE::NewHashLinkListRepFactory(
+        static_cast<size_t>(jbucket_count),
+        static_cast<size_t>(jhuge_page_tlb_size),
+        static_cast<int32_t>(jbucket_entries_logging_threshold),
+        static_cast<bool>(jif_log_bucket_dist_when_flash),
+        static_cast<int32_t>(jthreshold_use_skiplist)));
+  }
+  ROCKSDB_NAMESPACE::IllegalArgumentExceptionJni::ThrowNew(
+      env, !statusBucketCount.ok() ? statusBucketCount : statusHugePageTlb);
+  return 0;
+}
+
+/*
+ * Class:     org_rocksdb_VectorMemTableConfig
+ * Method:    newMemTableFactoryHandle
+ * Signature: (J)J
+ */
+jlong Java_org_rocksdb_VectorMemTableConfig_newMemTableFactoryHandle(
+    JNIEnv* env, jobject /*jobj*/, jlong jreserved_size) {
+  ROCKSDB_NAMESPACE::Status s =
+      ROCKSDB_NAMESPACE::JniUtil::check_if_jlong_fits_size_t(jreserved_size);
+  if (s.ok()) {
+    return reinterpret_cast<jlong>(new ROCKSDB_NAMESPACE::VectorRepFactory(
+        static_cast<size_t>(jreserved_size)));
+  }
+  ROCKSDB_NAMESPACE::IllegalArgumentExceptionJni::ThrowNew(env, s);
+  return 0;
+}
+
+/*
+ * Class:     org_rocksdb_SkipListMemTableConfig
+ * Method:    newMemTableFactoryHandle0
+ * Signature: (J)J
+ */
+jlong Java_org_rocksdb_SkipListMemTableConfig_newMemTableFactoryHandle0(
+    JNIEnv* env, jobject /*jobj*/, jlong jlookahead) {
+  ROCKSDB_NAMESPACE::Status s =
+      ROCKSDB_NAMESPACE::JniUtil::check_if_jlong_fits_size_t(jlookahead);
+  if (s.ok()) {
+    return reinterpret_cast<jlong>(new ROCKSDB_NAMESPACE::SkipListFactory(
+        static_cast<size_t>(jlookahead)));
+  }
+  ROCKSDB_NAMESPACE::IllegalArgumentExceptionJni::ThrowNew(env, s);
+  return 0;
+}