LeadKit/TINetworkingCache/Sources/EndpointCacheService.swift

82 lines
3.2 KiB
Swift

//
// Copyright (c) 2022 Touch Instinct
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the Software), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
import TINetworking
import TIFoundationUtils
import Cache
import Foundation
public struct EndpointCacheService<Content: Codable> {
private let serializedRequest: SerializedRequest
private let multiLevelStorage: Storage<SerializedRequest, Content>
public var cachedContent: Content? {
get {
guard let entry = try? multiLevelStorage.entry(forKey: serializedRequest), !entry.expiry.isExpired else {
try? multiLevelStorage.removeObject(forKey: serializedRequest)
return nil
}
return entry.object
}
nonmutating set {
if let object = newValue {
try? multiLevelStorage.setObject(object,
forKey: serializedRequest)
} else {
try? multiLevelStorage.removeObject(forKey: serializedRequest)
}
}
}
public init(serializedRequest: SerializedRequest,
cacheLifetime: TimeInterval,
jsonCodingConfigurator: JsonCodingConfigurator) throws {
self.serializedRequest = serializedRequest
let nameWithoutLeadingSlash: String
if serializedRequest.path.starts(with: "/") {
nameWithoutLeadingSlash = serializedRequest.path.drop { $0 == "/" }.string
} else {
nameWithoutLeadingSlash = serializedRequest.path
}
let diskConfig = DiskConfig(name: nameWithoutLeadingSlash,
expiry: .seconds(cacheLifetime))
let memoryConfig = MemoryConfig(expiry: .seconds(cacheLifetime),
countLimit: 0,
totalCostLimit: 0)
let transformer = Transformer {
try jsonCodingConfigurator.jsonEncoder.encode($0)
} fromData: {
try jsonCodingConfigurator.jsonDecoder.decode(Content.self, from: $0)
}
self.multiLevelStorage = try Storage(diskConfig: diskConfig,
memoryConfig: memoryConfig,
transformer: transformer)
}
}