ede9886f50
Some of the tests in DTEST take advantage of the fact that ByteOrderedPartitioner guarantees certain ordering of partition keys. Signed-off-by: Paweł Dziepak <pdziepak@cloudius-systems.com>
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
/*
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* Copyright (C) 2015 Cloudius Systems, Ltd.
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*/
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#pragma once
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#include "i_partitioner.hh"
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#include "bytes.hh"
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#include "sstables/key.hh"
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namespace dht {
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class byte_ordered_partitioner final : public i_partitioner {
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public:
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virtual const sstring name() { return "org.apache.cassandra.dht.ByteOrderedPartitioner"; }
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virtual token get_token(const schema& s, partition_key_view key) override {
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auto&& legacy = key.legacy_form(s);
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return token(token::kind::key, bytes(legacy.begin(), legacy.end()));
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}
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virtual token get_token(const sstables::key_view& key) override {
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auto v = bytes_view(key);
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if (v.empty()) {
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return minimum_token();
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}
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return token(token::kind::key, bytes(v.begin(), v.end()));
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}
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virtual token get_random_token() override;
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virtual bool preserves_order() override { return true; }
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virtual std::map<token, float> describe_ownership(const std::vector<token>& sorted_tokens) override;
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virtual data_type get_token_validator() override { return bytes_type; }
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virtual bool is_equal(const token& t1, const token& t2) override {
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return compare_unsigned(t1._data, t2._data) == 0;
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}
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virtual bool is_less(const token& t1, const token& t2) override {
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return compare_unsigned(t1._data, t2._data) < 0;
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}
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virtual token midpoint(const token& t1, const token& t2) const;
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virtual sstring to_sstring(const dht::token& t) const override {
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return to_hex(t._data);
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}
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};
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}
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