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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| // | ||
| // ConcurrentOperation.swift | ||
| // Queuer | ||
| // | ||
| // MIT License | ||
| // | ||
| // Copyright (c) 2017 - 2020 Fabrizio Brancati | ||
| // | ||
| // 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 Foundation | ||
|
|
||
| open class GroupOperation: ConcurrentOperation { | ||
| /// Private `OperationQueue` instance. | ||
| private let queue = OperationQueue() | ||
|
|
||
| /// List of `ConcurrentOperation` that should be run in this `GroupOperation`. | ||
| public var operations: [ConcurrentOperation] = [] | ||
|
|
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| /// Flag to know if all `ConcurrentOperation` of this `GroupOperation` were successful. | ||
| public var allOperationsSucceeded: Bool { | ||
| return operations.first(where: { $0.success == false }) == nil | ||
| } | ||
|
|
||
| /// Creates the `GroupOperation` with a completion handler. | ||
| /// | ||
| /// - Parameters: | ||
| /// - operations: Array of ConcurrentOperation to be executed. | ||
| /// - completionHandler: Block that will be executed once all operations are over. | ||
| public init(_ operations: [ConcurrentOperation], completionBlock: (() -> Void)? = nil) { | ||
| super.init() | ||
| self.operations = operations | ||
| self.completionBlock = completionBlock | ||
| } | ||
|
|
||
| /// A `GroupOperation` shouldn't be able to retry itself. It should be the responsability of its operations to retry themselves. | ||
| @available(*, obsoleted: 1.0, message: "Use retry on the children operations directly") | ||
| open override func retry() {} | ||
|
|
||
| /// Execute the `Operation` | ||
| /// The execution of a `GroupOperation` will always be considered successful. | ||
| /// Use the variable `allOperationsSucceeded` to know if an error occured on an operation in the Group. | ||
| open override func execute() { | ||
| queue.addOperations(operations, waitUntilFinished: true) | ||
| finish(success: true) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,189 @@ | ||
| // | ||
| // ConcurrentOperation.swift | ||
| // Queuer | ||
| // | ||
| // MIT License | ||
| // | ||
| // Copyright (c) 2017 - 2020 Fabrizio Brancati | ||
| // | ||
| // 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 XCTest | ||
|
|
||
| @testable import Queuer | ||
| import XCTest | ||
|
|
||
| internal class GroupOperationTests: XCTestCase { | ||
| func testGroupOperations() { | ||
| var order: [String] = [] | ||
| let testExpectation = expectation(description: "GroupOperations") | ||
| let queue = Queuer(name: "Group Operations") | ||
|
|
||
| let groupOperation1 = GroupOperation([ | ||
| ConcurrentOperation() { _ in | ||
| Thread.sleep(forTimeInterval: 1) | ||
| order.append("1") | ||
| }, | ||
| ConcurrentOperation() { _ in | ||
| order.append("2") | ||
| } | ||
| ]) { | ||
| order.append("3") | ||
| } | ||
|
|
||
| let groupOperation2 = GroupOperation([ | ||
| ConcurrentOperation() { _ in | ||
| order.append("4") | ||
| }, | ||
| ConcurrentOperation() { _ in | ||
| Thread.sleep(forTimeInterval: 1) | ||
| order.append("5") | ||
| } | ||
| ]) { | ||
| order.append("6") | ||
| } | ||
|
|
||
| let groupOperation3 = ConcurrentOperation() { _ in | ||
| Thread.sleep(forTimeInterval: 1) | ||
| order.append("7") | ||
| } | ||
|
|
||
| queue.addChainedOperations([groupOperation1, groupOperation2, groupOperation3]) { | ||
| testExpectation.fulfill() | ||
| } | ||
|
|
||
| waitForExpectations(timeout: 5) { error in | ||
| XCTAssertTrue(groupOperation1.allOperationsSucceeded) | ||
| XCTAssertNil(error) | ||
| XCTAssertEqual(order, ["2", "1", "3", "4", "5", "6", "7"]) | ||
| } | ||
| } | ||
|
|
||
| func testGroupOperationsWithInnerChainedRetry() { | ||
| var order: [String] = [] | ||
| let testExpectation = expectation(description: "GroupOperationsWithInnerChainedRetry") | ||
| let queue = Queuer(name: "Group Operations Chained Retry") | ||
|
|
||
| let groupOperation1 = GroupOperation([ | ||
| ConcurrentOperation() { _ in | ||
| order.append("1") | ||
| }, | ||
| ConcurrentOperation() { operation in | ||
| Thread.sleep(forTimeInterval: 1) | ||
| order.append("2") | ||
| operation.success = false | ||
| } | ||
| ]) | ||
|
|
||
| let groupOperation2 = ConcurrentOperation() { _ in | ||
| order.append("3") | ||
| } | ||
|
|
||
| queue.addChainedOperations([groupOperation1, groupOperation2]) { | ||
| testExpectation.fulfill() | ||
| } | ||
|
|
||
| waitForExpectations(timeout: 8) { error in | ||
| XCTAssertNil(error) | ||
| XCTAssertEqual(order, ["1", "2", "2", "2", "3"]) | ||
| } | ||
| } | ||
|
|
||
| func testGroupOperationsWithCancelledInnerChainedRetry() { | ||
| let queue = Queuer(name: "GroupOperationsWithCancelledInnerChainedRetry") | ||
| let testExpectation = expectation(description: "Group Operations Cancelled Inner Chained Retry") | ||
| var order: [String] = [] | ||
|
|
||
| let groupOperation1 = GroupOperation([ | ||
| ConcurrentOperation() { operation in | ||
| Thread.sleep(forTimeInterval: 1) | ||
| order.append("1") | ||
| operation.success = false | ||
| }, | ||
| ConcurrentOperation() { operation in | ||
| operation.cancel() | ||
| guard !operation.isCancelled else { | ||
| return | ||
| } | ||
| order.append("2") | ||
| operation.success = false | ||
| } | ||
| ]) | ||
|
|
||
| let groupOperation2 = ConcurrentOperation() { _ in | ||
| order.append("3") | ||
| } | ||
|
|
||
| queue.addChainedOperations([groupOperation1, groupOperation2]) { | ||
| testExpectation.fulfill() | ||
| } | ||
|
|
||
| waitForExpectations(timeout: 6) { error in | ||
| XCTAssertNil(error) | ||
| XCTAssertEqual(order, ["1", "1", "1", "3"]) | ||
| } | ||
| } | ||
|
|
||
| func testGroupOperationsWithInnerChainedManualRetry() { | ||
| let queue = Queuer(name: "GroupOperationsWithInnerChainedManualRetry") | ||
| let testExpectation = expectation(description: "Group Operations Inner Chained Manual Retry") | ||
| var order: [String] = [] | ||
|
|
||
| let concurrentOperation1 = ConcurrentOperation() { operation in | ||
| order.append("1") | ||
| operation.success = false | ||
| } | ||
| concurrentOperation1.manualRetry = true | ||
|
|
||
| let concurrentOperation2 = ConcurrentOperation() { operation in | ||
| Thread.sleep(forTimeInterval: 1) | ||
| order.append("2") | ||
| operation.success = false | ||
| } | ||
| concurrentOperation2.manualRetry = true | ||
|
|
||
| let groupOperation1 = GroupOperation([concurrentOperation1, concurrentOperation2]) | ||
|
|
||
| let groupOperation2 = ConcurrentOperation() { _ in | ||
| order.append("3") | ||
| } | ||
|
|
||
| queue.addChainedOperations([groupOperation1, groupOperation2]) { | ||
| testExpectation.fulfill() | ||
| } | ||
|
|
||
| DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(3)) { | ||
| concurrentOperation1.retry() | ||
| } | ||
| DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(4)) { | ||
| concurrentOperation2.retry() | ||
| } | ||
| DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(5)) { | ||
| concurrentOperation2.retry() | ||
| } | ||
| DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(6)) { | ||
| concurrentOperation1.retry() | ||
| } | ||
|
|
||
| waitForExpectations(timeout: 8) { error in | ||
| XCTAssertNil(error) | ||
| XCTAssertEqual(order, ["1", "2", "1", "2", "2", "1", "3"]) | ||
| } | ||
| } | ||
| } |