blob: 379c40cb0e37aca5c4d1e3fed865408092af869e (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/stllike/string.h>
namespace storage {
/**
* Cluster ontext common to all storage components.
* For now just the cluster name, but we can consider
* moving other global context into this API.
**/
struct ClusterContext {
protected:
virtual ~ClusterContext() = default;
public:
// Returns a pointer to the cluster name.
// Must be a valid pointer to a constant string for the
// lifetime of all the components that may ask for it.
// This API is for the benefit of StorageMessageAddress
// which wants to contain the pointer returned here.
virtual const vespalib::string * cluster_name_ptr() const noexcept = 0;
// convenience method
const vespalib::string &cluster_name() const noexcept {
return *cluster_name_ptr();
}
};
/**
* Simple ClusterContext with an exposed string.
**/
struct SimpleClusterContext : ClusterContext {
vespalib::string my_cluster_name;
const vespalib::string * cluster_name_ptr() const noexcept override {
return &my_cluster_name;
}
SimpleClusterContext() : my_cluster_name("") {}
explicit SimpleClusterContext(const vespalib::string& value)
: my_cluster_name(value)
{}
~SimpleClusterContext() override = default;
};
} // namespace
|
