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rocksdb/table/meta_blocks.cc

134 lines
3.9 KiB

// Copyright (c) 2013, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
#include "table/meta_blocks.h"
#include <map>
#include "rocksdb/table_properties.h"
#include "table/format.h"
#include "util/coding.h"
namespace rocksdb {
MetaIndexBuilder::MetaIndexBuilder()
: meta_index_block_(
new BlockBuilder(1 /* restart interval */, BytewiseComparator())) {
}
void MetaIndexBuilder::Add(const std::string& key,
const BlockHandle& handle) {
std::string handle_encoding;
handle.EncodeTo(&handle_encoding);
meta_block_handles_.insert({key, handle_encoding});
}
Slice MetaIndexBuilder::Finish() {
for (const auto& metablock : meta_block_handles_) {
meta_index_block_->Add(metablock.first, metablock.second);
}
return meta_index_block_->Finish();
}
PropertyBlockBuilder::PropertyBlockBuilder()
: properties_block_(
new BlockBuilder(1 /* restart interval */, BytewiseComparator())) {
}
void PropertyBlockBuilder::Add(const std::string& name,
const std::string& val) {
props_.insert({name, val});
}
void PropertyBlockBuilder::Add(const std::string& name, uint64_t val) {
assert(props_.find(name) == props_.end());
std::string dst;
PutVarint64(&dst, val);
Add(name, dst);
}
void PropertyBlockBuilder::Add(
const UserCollectedProperties& user_collected_properties) {
for (const auto& prop : user_collected_properties) {
Add(prop.first, prop.second);
}
}
void PropertyBlockBuilder::AddTableProperty(const TableProperties& props) {
Add(TablePropertiesNames::kRawKeySize, props.raw_key_size);
Add(TablePropertiesNames::kRawValueSize, props.raw_value_size);
Add(TablePropertiesNames::kDataSize, props.data_size);
Add(TablePropertiesNames::kIndexSize, props.index_size);
Add(TablePropertiesNames::kNumEntries, props.num_entries);
Add(TablePropertiesNames::kNumDataBlocks, props.num_data_blocks);
Add(TablePropertiesNames::kFilterSize, props.filter_size);
if (!props.filter_policy_name.empty()) {
Add(TablePropertiesNames::kFilterPolicy,
props.filter_policy_name);
}
}
Slice PropertyBlockBuilder::Finish() {
for (const auto& prop : props_) {
properties_block_->Add(prop.first, prop.second);
}
return properties_block_->Finish();
}
void LogPropertiesCollectionError(
Logger* info_log, const std::string& method, const std::string& name) {
assert(method == "Add" || method == "Finish");
std::string msg =
"[Warning] encountered error when calling TablePropertiesCollector::" +
method + "() with collector name: " + name;
Log(info_log, "%s", msg.c_str());
}
bool NotifyCollectTableCollectorsOnAdd(
const Slice& key,
const Slice& value,
const Options::TablePropertiesCollectors& collectors,
Logger* info_log) {
bool all_succeeded = true;
for (auto collector : collectors) {
Status s = collector->Add(key, value);
all_succeeded = all_succeeded && s.ok();
if (!s.ok()) {
LogPropertiesCollectionError(
info_log, "Add", /* method */ collector->Name()
);
}
}
return all_succeeded;
}
bool NotifyCollectTableCollectorsOnFinish(
const Options::TablePropertiesCollectors& collectors,
Logger* info_log,
PropertyBlockBuilder* builder) {
bool all_succeeded = true;
for (auto collector : collectors) {
UserCollectedProperties user_collected_properties;
Status s = collector->Finish(&user_collected_properties);
all_succeeded = all_succeeded && s.ok();
if (!s.ok()) {
LogPropertiesCollectionError(
info_log, "Finish", /* method */ collector->Name()
);
} else {
builder->Add(user_collected_properties);
}
}
return all_succeeded;
}
} // namespace rocksdb