은행창구 매니저 [Step3] 토이, 쥬봉이

BankManager/Sources/BankManager/Model/BankManager.swift

@@ -9,9 +9,28 @@ public struct BankManager<BankClerk: CustomerReceivable> {
         customerQueue.enqueue(customer)
     }
 
-    public func assignCustomer(to bankClerk: BankClerk) {
-        while let customer = customerQueue.dequeue() as? BankClerk.Customer {
-            bankClerk.receive(customer: customer)
+    public func assignCustomer(to bankClerk: [Banking: BankClerk]) {
+        let group = DispatchGroup()
+        let semaphore = DispatchSemaphore(value: 2)
+        let depositQueue = DispatchQueue(label: "depositQueue", attributes: .concurrent)
+        let loanQeueue = DispatchQueue(label: "loanQueue")
+
+        while let customer = customerQueue.dequeue() as? BankClerk.Customer,
+              let banking = customer.banking {
+            switch banking {
+            case .deposit:
+                depositQueue.async(group: group) {
+                    semaphore.wait()
+                    bankClerk[banking]?.receive(customer: customer)
+                    semaphore.signal()
+                }
+            case .loan:
+                loanQeueue.async(group: group) {
+                    bankClerk[banking]?.receive(customer: customer)
+                }
+            }
         }
+
+        group.wait()
     }
 }

BankManager/Sources/BankManager/Model/Banking.swift

@@ -0,0 +1,11 @@
+//
+//  Banking.swift
+//
+//
+//  Created by jyubong, Toy on 11/22/23.
+//
+
+public enum Banking: String, CaseIterable {
+    case deposit = "예금"
+    case loan = "대출"
+}

BankManager/Sources/BankManager/Protocol/CustomerNumbering.swift

@@ -1,3 +1,4 @@
 public protocol CustomerNumbering {
     var number: UInt { get }
+    var banking: Banking? { get }
 }

BankManagerConsoleApp/BankManagerConsoleApp/Model/Bank.swift

@@ -10,7 +10,7 @@ import BankManager
 
 struct Bank: BankBusinesable {
     private let bankManager = BankManager<BankClerk>()
-    private let bankClerk = BankClerk()
+    private let bankClerks: [Banking: BankClerk] = [.deposit: BankClerk(work: .deposit), .loan: BankClerk(work: .loan)]
     private let customerNumber: UInt
 
     init(customerNumber: UInt) {
@@ -22,7 +22,7 @@ struct Bank: BankBusinesable {
 
         let startTime = CFAbsoluteTimeGetCurrent()
 
-        bankManager.assignCustomer(to: bankClerk)
+        bankManager.assignCustomer(to: bankClerks)
 
         let finishTime = CFAbsoluteTimeGetCurrent() - startTime
         let time = String(format: "%.2f", finishTime)

BankManagerConsoleApp/BankManagerConsoleApp/Model/BankClerk.swift

@@ -8,20 +8,29 @@ import Foundation
 import BankManager
 
 struct BankClerk: CustomerReceivable {
-    private let pace = 0.7
+    private let work: Banking
+    private var pace: Double {
+        switch work {
+        case .deposit:
+            return 0.7
+        case .loan:
+            return 1.1
+        }
+    }
     private let startWork: (String) -> Void
     private let endWork: (String) -> Void
 
-    init(startWork: @escaping (String) -> Void = { print($0) }, endWork: @escaping (String) -> Void = { print($0) }) {
+    init(work: Banking, startWork: @escaping (String) -> Void = { print($0) }, endWork: @escaping (String) -> Void = { print($0) }) {
+        self.work = work
         self.startWork = startWork
         self.endWork = endWork
     }
 
     func receive(customer: Customer) {
         let number = customer.number
 
-        startWork("\(number)번 고객 업무 시작")
+        startWork("\(number)번 고객 \(work.rawValue)업무 시작")
         Thread.sleep(forTimeInterval: pace)
-        endWork("\(number)번 고객 업무 종료")
+        endWork("\(number)번 고객 \(work.rawValue)업무 종료")
     }
 }

BankManagerConsoleApp/BankManagerConsoleApp/Model/Customer.swift

@@ -9,4 +9,5 @@ import BankManager
 
 struct Customer: CustomerNumbering {
     let number: UInt
+    let banking = Banking.allCases.randomElement()
 }