76 lines
3.2 KiB
C++
76 lines
3.2 KiB
C++
/*
|
|
* ClusterConnectionFile.h
|
|
*
|
|
* This source file is part of the FoundationDB open source project
|
|
*
|
|
* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
#ifndef FDBCLIENT_CLUSTERCONNECTIONFILE_H
|
|
#define FDBCLIENT_CLUSTERCONNECTIONFILE_H
|
|
|
|
#include "fdbclient/CoordinationInterface.h"
|
|
#include "flow/actorcompiler.h" // has to be last include
|
|
|
|
// An implementation of IClusterConnectionRecord backed by a file.
|
|
class ClusterConnectionFile : public IClusterConnectionRecord, ReferenceCounted<ClusterConnectionFile>, NonCopyable {
|
|
public:
|
|
// Loads and parses the file at 'filename', throwing errors if the file cannot be read or the format is invalid.
|
|
explicit ClusterConnectionFile(std::string const& filename);
|
|
|
|
// Creates a cluster file with a given connection string and saves it to the specified file.
|
|
explicit ClusterConnectionFile(std::string const& filename, ClusterConnectionString const& contents);
|
|
|
|
// Sets the connections string held by this object and persists it.
|
|
Future<Void> setAndPersistConnectionString(ClusterConnectionString const&) override;
|
|
|
|
// Get the connection string stored in the file.
|
|
Future<ClusterConnectionString> getStoredConnectionString() override;
|
|
|
|
// Checks whether the connection string in the file matches the connection string stored in memory. The cluster
|
|
// string stored in the file is returned via the reference parameter connectionString.
|
|
Future<bool> upToDate(ClusterConnectionString& fileConnectionString) override;
|
|
|
|
// Returns the specified path of the cluster file.
|
|
std::string getLocation() const override;
|
|
|
|
// Creates a copy of this object with a modified connection string but that isn't persisted.
|
|
Reference<IClusterConnectionRecord> makeIntermediateRecord(
|
|
ClusterConnectionString const& connectionString) const override;
|
|
|
|
// Returns a string representation of this cluster connection record. This will include the type of record and the
|
|
// filename of the cluster file.
|
|
std::string toString() const override;
|
|
|
|
void addref() override { ReferenceCounted<ClusterConnectionFile>::addref(); }
|
|
void delref() override { ReferenceCounted<ClusterConnectionFile>::delref(); }
|
|
|
|
// returns <resolved name, was default file>
|
|
static std::pair<std::string, bool> lookupClusterFileName(std::string const& filename);
|
|
|
|
// get a human readable error message describing the error returned from the constructor
|
|
static std::string getErrorString(std::pair<std::string, bool> const& resolvedFile, Error const& e);
|
|
|
|
protected:
|
|
// Writes the connection string to the cluster file
|
|
Future<bool> persist() override;
|
|
|
|
private:
|
|
std::string filename;
|
|
};
|
|
|
|
#include "flow/unactorcompiler.h"
|
|
#endif |