// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#include "kudu/fs/block_manager_metrics.h"

#include "kudu/util/metrics.h"

METRIC_DEFINE_gauge_uint64(server, block_manager_blocks_open_reading,
                           "Data Blocks Open For Read",
                           kudu::MetricUnit::kBlocks,
                           "Number of data blocks currently open for reading",
                           kudu::MetricLevel::kInfo);

METRIC_DEFINE_gauge_uint64(server, block_manager_blocks_open_writing,
                           "Data Blocks Open For Write",
                           kudu::MetricUnit::kBlocks,
                           "Number of data blocks currently open for writing",
                           kudu::MetricLevel::kInfo);

METRIC_DEFINE_counter(server, block_manager_total_writable_blocks,
                      "Data Blocks Opened For Write",
                      kudu::MetricUnit::kBlocks,
                      "Number of data blocks opened for writing since service start",
                      kudu::MetricLevel::kDebug);

METRIC_DEFINE_counter(server, block_manager_total_readable_blocks,
                      "Data Blocks Opened For Read",
                      kudu::MetricUnit::kBlocks,
                      "Number of data blocks opened for reading since service start",
                      kudu::MetricLevel::kDebug);

METRIC_DEFINE_counter(server, block_manager_total_blocks_created,
                      "Data Blocks Created",
                      kudu::MetricUnit::kBlocks,
                      "Number of data blocks that were created since service start",
                      kudu::MetricLevel::kDebug);

METRIC_DEFINE_counter(server, block_manager_total_blocks_deleted,
                      "Data Blocks Deleted",
                      kudu::MetricUnit::kBlocks,
                      "Number of data blocks that were deleted since service start",
                      kudu::MetricLevel::kDebug);

METRIC_DEFINE_counter(server, block_manager_total_bytes_written,
                      "Block Data Bytes Written",
                      kudu::MetricUnit::kBytes,
                      "Number of bytes of block data written since service start",
                      kudu::MetricLevel::kDebug);

METRIC_DEFINE_counter(server, block_manager_total_bytes_read,
                      "Block Data Bytes Read",
                      kudu::MetricUnit::kBytes,
                      "Number of bytes of block data read since service start",
                      kudu::MetricLevel::kDebug);

METRIC_DEFINE_counter(server, block_manager_total_disk_sync,
                      "Block Data Disk Synchronization Count",
                      kudu::MetricUnit::kBlocks,
                      "Number of disk synchronizations of block data since service start",
                      kudu::MetricLevel::kDebug);

namespace kudu {
namespace fs {
namespace internal {

#define MINIT(x) x(METRIC_block_manager_##x.Instantiate(entity))
#define GINIT(x) x(METRIC_block_manager_##x.Instantiate(entity, 0))
BlockManagerMetrics::BlockManagerMetrics(const scoped_refptr<MetricEntity>& entity)
  : GINIT(blocks_open_reading),
    GINIT(blocks_open_writing),
    MINIT(total_readable_blocks),
    MINIT(total_writable_blocks),
    MINIT(total_blocks_created),
    MINIT(total_blocks_deleted),
    MINIT(total_bytes_read),
    MINIT(total_bytes_written),
    MINIT(total_disk_sync) {
}
#undef GINIT
#undef MINIT

} // namespace internal
} // namespace fs
} // namespace kudu