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Create ObjectCache and start using it.

This commit is contained in:
Brent Simmons 2017-07-30 11:22:21 -07:00
parent bf11f88ea7
commit 32ae8ab1d8
3 changed files with 67 additions and 9 deletions
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11
Frameworks/Database/StatusesTable.swift
View File

@ -14,9 +14,9 @@ import Data
final class StatusesTable: DatabaseTable {
var cachedStatuses = [String: ArticleStatus]()
let name: String
let queue: RSDatabaseQueue
let cache = ObjectCache<ArticleStatus>(keyPathForID: \ArticleStatus.articleID)
init(name: String, queue: RSDatabaseQueue) {
@ -35,11 +35,11 @@ final class StatusesTable: DatabaseTable {
articles.forEach { (oneArticle) in
if let cachedStatus = cachedStatusForArticleID(oneArticle.articleID) {
if let cachedStatus = cache[oneArticle.articleID] {
oneArticle.status = cachedStatus
}
else if let oneArticleStatus = oneArticle.status {
cacheStatus(oneArticleStatus)
cache.add(oneArticleStatus)
}
}
}
@ -170,11 +170,6 @@ private extension StatusesManager {
// MARK: Cache
func cachedStatusForArticleID(_ articleID: String) -> ArticleStatus? {
return cachedStatuses[articleID]
}
func cacheStatus(_ status: ArticleStatus) {
cacheStatuses(Set([status]))

4
Frameworks/RSDatabase/RSDatabase.xcodeproj/project.pbxproj
View File

@ -33,6 +33,7 @@
84419AE71B5ABD7F00C26BB2 /* RSDatabaseQueue.m in Sources */ = {isa = PBXBuildFile; fileRef = 84419ADD1B5ABD7F00C26BB2 /* RSDatabaseQueue.m */; };
84419B051B5ABFF700C26BB2 /* FMResultSet+RSExtras.h in Headers */ = {isa = PBXBuildFile; fileRef = 84419B031B5ABFF700C26BB2 /* FMResultSet+RSExtras.h */; settings = {ATTRIBUTES = (Public, ); }; };
84419B061B5ABFF700C26BB2 /* FMResultSet+RSExtras.m in Sources */ = {isa = PBXBuildFile; fileRef = 84419B041B5ABFF700C26BB2 /* FMResultSet+RSExtras.m */; };
844D97411F2D32F300CEDDEA /* ObjectCache.swift in Sources */ = {isa = PBXBuildFile; fileRef = 844D97401F2D32F300CEDDEA /* ObjectCache.swift */; };
849BF8C61C94FB8E0071D1DA /* libsqlite3.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = 849BF8C51C94FB8E0071D1DA /* libsqlite3.tbd */; };
84DDF1961C94FC45005E6CF5 /* FMDatabase.h in Headers */ = {isa = PBXBuildFile; fileRef = 84DDF18B1C94FC45005E6CF5 /* FMDatabase.h */; settings = {ATTRIBUTES = (Public, ); }; };
84DDF1971C94FC45005E6CF5 /* FMDatabase.m in Sources */ = {isa = PBXBuildFile; fileRef = 84DDF18C1C94FC45005E6CF5 /* FMDatabase.m */; };
@ -68,6 +69,7 @@
84419ADD1B5ABD7F00C26BB2 /* RSDatabaseQueue.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = RSDatabaseQueue.m; path = RSDatabase/RSDatabaseQueue.m; sourceTree = "<group>"; };
84419B031B5ABFF700C26BB2 /* FMResultSet+RSExtras.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = "FMResultSet+RSExtras.h"; path = "RSDatabase/FMResultSet+RSExtras.h"; sourceTree = "<group>"; };
84419B041B5ABFF700C26BB2 /* FMResultSet+RSExtras.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = "FMResultSet+RSExtras.m"; path = "RSDatabase/FMResultSet+RSExtras.m"; sourceTree = "<group>"; };
844D97401F2D32F300CEDDEA /* ObjectCache.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; name = ObjectCache.swift; path = RSDatabase/ObjectCache.swift; sourceTree = "<group>"; };
849BF8C51C94FB8E0071D1DA /* libsqlite3.tbd */ = {isa = PBXFileReference; lastKnownFileType = "sourcecode.text-based-dylib-definition"; name = libsqlite3.tbd; path = usr/lib/libsqlite3.tbd; sourceTree = SDKROOT; };
84DDF18B1C94FC45005E6CF5 /* FMDatabase.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = FMDatabase.h; sourceTree = "<group>"; };
84DDF18C1C94FC45005E6CF5 /* FMDatabase.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = FMDatabase.m; sourceTree = "<group>"; };
@ -154,6 +156,7 @@
84419AD81B5ABD7400C26BB2 /* NSString+RSDatabase.h */,
84419AD91B5ABD7400C26BB2 /* NSString+RSDatabase.m */,
840405DA1F1C158C00DF0296 /* DatabaseTable.swift */,
844D97401F2D32F300CEDDEA /* ObjectCache.swift */,
84DDF18A1C94FC45005E6CF5 /* FMDB */,
84F22C5A1B52E0D9000060CE /* Info.plist */,
849BF8C51C94FB8E0071D1DA /* libsqlite3.tbd */,
@ -368,6 +371,7 @@
84DDF1A01C94FC45005E6CF5 /* FMResultSet.m in Sources */,
84419B061B5ABFF700C26BB2 /* FMResultSet+RSExtras.m in Sources */,
84DDF1991C94FC45005E6CF5 /* FMDatabaseAdditions.m in Sources */,
844D97411F2D32F300CEDDEA /* ObjectCache.swift in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;
};

59
Frameworks/RSDatabase/RSDatabase/ObjectCache.swift Normal file
View File

@ -0,0 +1,59 @@
//
// ObjectCache.swift
// RSDatabase
//
// Created by Brent Simmons on 7/29/17.
// Copyright © 2017 Ranchero Software, LLC. All rights reserved.
//
import Foundation
public final class ObjectCache<T> {
private let keyPathForID: KeyPath<T,String>
private var dictionary = [String: T]()
public init(keyPathForID: KeyPath<T,String>) {
self.keyPathForID = keyPathForID
}
public func addObjects(_ objects: [T]) {
objects.forEach { addObject($0) }
}
public func add(_ object: T) {
let identifier = identifierForObject(object)
self[identifier] = object
}
public func removeObjects(_ objects: [T]) {
objects.forEach { removeObject($0) }
}
public func removeObject(_ object: T) {
let identifier = identifierForObject(object)
self[identifier] = nil
}
public subscript(_ identifier: String) -> T? {
get {
return dictionary[identifier]
}
set {
dictionary[identifier] = T
}
}
}
private extension ObjectCache {
func identifierForObject(_ object: T) -> String {
return object[keyPath: keyPathForID]
}
}