1/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2/*
3 *     Copyright 2017 Couchbase, Inc
4 *
5 *   Licensed under the Apache License, Version 2.0 (the "License");
6 *   you may not use this file except in compliance with the License.
7 *   You may obtain a copy of the License at
8 *
9 *       http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *   Unless required by applicable law or agreed to in writing, software
12 *   distributed under the License is distributed on an "AS IS" BASIS,
13 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *   See the License for the specific language governing permissions and
15 *   limitations under the License.
16 */
17
18#include "collections/scan_context.h"
19#include "collections/collections_dockey.h"
20
21namespace Collections {
22namespace VB {
23
24bool ScanContext::manageSeparator(const ::DocKey& key) {
25    if (key.getDocNamespace() == DocNamespace::System) {
26        auto cKey = Collections::DocKey::make(key);
27        if (cKey.getCollection() == Collections::SeparatorChangePrefix) {
28            // This system event key represents a change to a new separator.
29            // The key is formatted as:
30            //  - $collections_separator:<uid>:<new_sep>
31
32            // Make a new Collections::DocKey from cKey.getKey, which returns
33            // <uid>:<new_sep>, thus getKey will return <new_sep>
34            auto cKey2 = Collections::DocKey::make(
35                    {reinterpret_cast<const uint8_t*>(cKey.getKey().data()),
36                     cKey.getKey().size(),
37                     DocNamespace::System});
38            separator.assign(cKey2.getKey().data(), cKey2.getKey().size());
39            return true; // return true because we've changed
40        }
41    }
42    return false;
43}
44
45} // end VB
46} // end Collections