fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
/*
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* Copyright (C) 2020-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#include "cdc_partitioner.hh"
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#include "dht/token.hh"
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#include "schema.hh"
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#include "sstables/key.hh"
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#include "utils/class_registrator.hh"
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#include "cdc/generation.hh"
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#include "keys.hh"
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static const sstring cdc_partitioner_name = "com.scylladb.dht.CDCPartitioner";
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namespace cdc {
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const sstring cdc_partitioner::name() const {
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return cdc_partitioner_name;
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}
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static dht::token to_token(int64_t value) {
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return dht::token(dht::token::kind::key, value);
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}
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static dht::token to_token(bytes_view key) {
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// Key should be 16 B long, of which first 8 B are used for token calculation
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if (key.size() != 2*sizeof(int64_t)) {
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return dht::minimum_token();
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}
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return to_token(stream_id::token_from_bytes(key));
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}
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dht::token
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cdc_partitioner::get_token(const sstables::key_view& key) const {
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return key.with_linearized([&] (bytes_view v) {
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return to_token(v);
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});
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}
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dht::token
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cdc_partitioner::get_token(const schema& s, partition_key_view key) const {
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auto exploded_key = key.explode(s);
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return to_token(exploded_key[0]);
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}
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using registry = class_registrator<dht::i_partitioner, cdc_partitioner>;
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static registry registrator(cdc_partitioner_name);
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static registry registrator_short_name("CDCPartitioner");
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}
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