1 files changed, 46 insertions, 0 deletions
diff --git a/src/rocksdb/java/rocksjni/filter.cc b/src/rocksdb/java/rocksjni/filter.cc
new file mode 100644
index 000000000..ed22016d2
--- /dev/null
+++ b/src/rocksdb/java/rocksjni/filter.cc
@@ -0,0 +1,46 @@
+// 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::FilterPolicy.
+
+#include <jni.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <string>
+
+#include "include/org_rocksdb_BloomFilter.h"
+#include "include/org_rocksdb_Filter.h"
+#include "rocksdb/filter_policy.h"
+#include "rocksjni/cplusplus_to_java_convert.h"
+#include "rocksjni/portal.h"
+
+/*
+ * Class:     org_rocksdb_BloomFilter
+ * Method:    createBloomFilter
+ * Signature: (DZ)J
+ */
+jlong Java_org_rocksdb_BloomFilter_createNewBloomFilter(JNIEnv* /*env*/,
+                                                        jclass /*jcls*/,
+                                                        jdouble bits_per_key) {
+  auto* sptr_filter =
+      new std::shared_ptr<const ROCKSDB_NAMESPACE::FilterPolicy>(
+          ROCKSDB_NAMESPACE::NewBloomFilterPolicy(bits_per_key));
+  return GET_CPLUSPLUS_POINTER(sptr_filter);
+}
+
+/*
+ * Class:     org_rocksdb_Filter
+ * Method:    disposeInternal
+ * Signature: (J)V
+ */
+void Java_org_rocksdb_Filter_disposeInternal(JNIEnv* /*env*/, jobject /*jobj*/,
+                                             jlong jhandle) {
+  auto* handle =
+      reinterpret_cast<std::shared_ptr<const ROCKSDB_NAMESPACE::FilterPolicy>*>(
+          jhandle);
+  delete handle;  // delete std::shared_ptr
+}