1 files changed, 60 insertions, 0 deletions
diff --git a/src/rocksdb/java/rocksjni/persistent_cache.cc b/src/rocksdb/java/rocksjni/persistent_cache.cc
new file mode 100644
index 000000000..295d91798
--- /dev/null
+++ b/src/rocksdb/java/rocksjni/persistent_cache.cc
@@ -0,0 +1,60 @@
+// 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
+// ROCKSDB_NAMESPACE::PersistentCache.
+
+#include "rocksdb/persistent_cache.h"
+
+#include <jni.h>
+
+#include <string>
+
+#include "include/org_rocksdb_PersistentCache.h"
+#include "loggerjnicallback.h"
+#include "portal.h"
+#include "rocksjni/cplusplus_to_java_convert.h"
+
+/*
+ * Class:     org_rocksdb_PersistentCache
+ * Method:    newPersistentCache
+ * Signature: (JLjava/lang/String;JJZ)J
+ */
+jlong Java_org_rocksdb_PersistentCache_newPersistentCache(
+    JNIEnv* env, jclass, jlong jenv_handle, jstring jpath, jlong jsz,
+    jlong jlogger_handle, jboolean joptimized_for_nvm) {
+  auto* rocks_env = reinterpret_cast<ROCKSDB_NAMESPACE::Env*>(jenv_handle);
+  jboolean has_exception = JNI_FALSE;
+  std::string path =
+      ROCKSDB_NAMESPACE::JniUtil::copyStdString(env, jpath, &has_exception);
+  if (has_exception == JNI_TRUE) {
+    return 0;
+  }
+  auto* logger =
+      reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::LoggerJniCallback>*>(
+          jlogger_handle);
+  auto* cache =
+      new std::shared_ptr<ROCKSDB_NAMESPACE::PersistentCache>(nullptr);
+  ROCKSDB_NAMESPACE::Status s = ROCKSDB_NAMESPACE::NewPersistentCache(
+      rocks_env, path, static_cast<uint64_t>(jsz), *logger,
+      static_cast<bool>(joptimized_for_nvm), cache);
+  if (!s.ok()) {
+    ROCKSDB_NAMESPACE::RocksDBExceptionJni::ThrowNew(env, s);
+  }
+  return GET_CPLUSPLUS_POINTER(cache);
+}
+
+/*
+ * Class:     org_rocksdb_PersistentCache
+ * Method:    disposeInternal
+ * Signature: (J)V
+ */
+void Java_org_rocksdb_PersistentCache_disposeInternal(JNIEnv*, jobject,
+                                                      jlong jhandle) {
+  auto* cache =
+      reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::PersistentCache>*>(
+          jhandle);
+  delete cache;  // delete std::shared_ptr
+}