fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.4 KiB
48 lines
1.4 KiB
// 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).
|
|
|
|
#include "utilities/cassandra/cassandra_compaction_filter.h"
|
|
#include <string>
|
|
#include "rocksdb/slice.h"
|
|
#include "utilities/cassandra/format.h"
|
|
|
|
|
|
namespace rocksdb {
|
|
namespace cassandra {
|
|
|
|
const char* CassandraCompactionFilter::Name() const {
|
|
return "CassandraCompactionFilter";
|
|
}
|
|
|
|
CompactionFilter::Decision CassandraCompactionFilter::FilterV2(
|
|
int /*level*/, const Slice& /*key*/, ValueType value_type,
|
|
const Slice& existing_value, std::string* new_value,
|
|
std::string* /*skip_until*/) const {
|
|
bool value_changed = false;
|
|
RowValue row_value = RowValue::Deserialize(
|
|
existing_value.data(), existing_value.size());
|
|
RowValue compacted =
|
|
purge_ttl_on_expiration_
|
|
? row_value.RemoveExpiredColumns(&value_changed)
|
|
: row_value.ConvertExpiredColumnsToTombstones(&value_changed);
|
|
|
|
if (value_type == ValueType::kValue) {
|
|
compacted = compacted.RemoveTombstones(gc_grace_period_in_seconds_);
|
|
}
|
|
|
|
if(compacted.Empty()) {
|
|
return Decision::kRemove;
|
|
}
|
|
|
|
if (value_changed) {
|
|
compacted.Serialize(new_value);
|
|
return Decision::kChangeValue;
|
|
}
|
|
|
|
return Decision::kKeep;
|
|
}
|
|
|
|
} // namespace cassandra
|
|
} // namespace rocksdb
|
|
|