summaryrefslogtreecommitdiffstats
path: root/src/rocksdb/java/rocksjni/loggerjnicallback.h
blob: 80c5a1983300772eca69446c3379180bc0b9d4b2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
// 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 callback "bridge" between Java and C++ for
// rocksdb::Logger

#ifndef JAVA_ROCKSJNI_LOGGERJNICALLBACK_H_
#define JAVA_ROCKSJNI_LOGGERJNICALLBACK_H_

#include <jni.h>
#include <memory>
#include <string>
#include "rocksjni/jnicallback.h"
#include "port/port.h"
#include "rocksdb/env.h"

namespace rocksdb {

  class LoggerJniCallback : public JniCallback, public Logger {
   public:
     LoggerJniCallback(JNIEnv* env, jobject jLogger);
     ~LoggerJniCallback();

     using Logger::SetInfoLogLevel;
     using Logger::GetInfoLogLevel;
     // Write an entry to the log file with the specified format.
     virtual void Logv(const char* format, va_list ap);
     // Write an entry to the log file with the specified log level
     // and format.  Any log with level under the internal log level
     // of *this (see @SetInfoLogLevel and @GetInfoLogLevel) will not be
     // printed.
     virtual void Logv(const InfoLogLevel log_level,
         const char* format, va_list ap);

   private:
     jmethodID m_jLogMethodId;
     jobject m_jdebug_level;
     jobject m_jinfo_level;
     jobject m_jwarn_level;
     jobject m_jerror_level;
     jobject m_jfatal_level;
     jobject m_jheader_level;
     std::unique_ptr<char[]> format_str(const char* format, va_list ap) const;
  };
}  // namespace rocksdb

#endif  // JAVA_ROCKSJNI_LOGGERJNICALLBACK_H_