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Uncoupled DiskLogger from FileManager

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This commit is contained in:
Wojciech Nagrodzki 2018-08-26 12:08:07 +02:00
parent 11cdd72a04
commit 7c58a50778
Signed by: wnagrodzki
GPG key ID: E9D0EB0302264569
2 changed files with 13 additions and 6 deletions
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10
Logger/Loggers/DiskLogger/DiskLogger.swift
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@ -30,6 +30,7 @@ public final class DiskLogger: Logger {
private let fileURL: URL
private let fileSizeLimit: UInt64
private let rotations: Int
private let fileSystem: FileSystem
private let formatter: DateFormatter
private let queue = DispatchQueue(label: "com.wnagrodzki.DiskLogger", qos: .background, attributes: [], autoreleaseFrequency: .workItem, target: nil)
private var buffer = Data()
@ -41,10 +42,11 @@ public final class DiskLogger: Logger {
/// - fileURL: URL of the log file.
/// - fileSizeLimit: Maximum size log file can reach in bytes. Attempt to exceeding that limit triggers log files rotation.
/// - rotations: Number of times log files are rotated before being removed.
public init(fileURL: URL, fileSizeLimit: UInt64, rotations: Int) {
public init(fileURL: URL, fileSizeLimit: UInt64, rotations: Int, fileSystem: FileSystem) {
self.fileURL = fileURL
self.fileSizeLimit = fileSizeLimit
self.rotations = rotations
self.fileSystem = fileSystem
formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH:mm:ss.SSS"
formatter.timeZone = TimeZone(secondsFromGMT: 0)
@ -80,8 +82,8 @@ public final class DiskLogger: Logger {
private func openFileWriter() throws {
guard fileWriter == nil else { return }
if FileManager.default.fileExists(atPath: fileURL.path) == false {
FileManager.default.createFile(atPath: fileURL.path, contents: nil, attributes: nil)
if fileSystem.itemExists(at: fileURL) == false {
_ = fileSystem.createFile(at: fileURL)
}
fileWriter = try FileWriter(fileURL: fileURL, fileSizeLimit: fileSizeLimit)
}
@ -97,7 +99,7 @@ public final class DiskLogger: Logger {
}
private func rotateLogFiles() throws {
let logrotate = Logrotate(fileURL: fileURL, rotations: rotations, fileSystem: FileManager.default)
let logrotate = Logrotate(fileURL: fileURL, rotations: rotations, fileSystem: fileSystem)
try logrotate.rotate()
}
}

9
Logger/Loggers/DiskLogger/FileSystem.swift
View file

@ -24,15 +24,20 @@
import Foundation
protocol FileSystem {
public protocol FileSystem {
func itemExists(at URL: URL) -> Bool
func removeItem(at URL: URL) throws
func moveItem(at srcURL: URL, to dstURL: URL) throws
func createFile(at URL: URL) -> Bool
}
extension FileManager: FileSystem {
func itemExists(at URL: URL) -> Bool {
public func itemExists(at URL: URL) -> Bool {
return fileExists(atPath: URL.path)
}
public func createFile(at URL: URL) -> Bool {
return createFile(atPath: URL.path, contents: nil, attributes: nil)
}
}