Add Calculate cache size methed

AwesomeCache.podspec

@@ -1,15 +1,15 @@
 Pod::Spec.new do |s|
-  s.name                  = "AwesomeCache"
+  s.name                  = "AwesomeCache-hwh"
   s.version               = "2.0"
-  s.summary               = "Delightful on-disk cache (written in Swift)"
-  s.description           = "Delightful on-disk cache (written in Swift). Backed by NSCache for maximum performance and support for expiry of single objects."
-  s.homepage              = "https://github.com/aschuch/AwesomeCache"
+  s.summary               = "轻量级本地缓存swift 库"
+  s.description           = "轻量级本地缓存swift 库. Backed by NSCache for maximum performance and support for expiry of single objects."
+  s.homepage              = "https://github.com/huang1988519/"
   s.license               = { :type => "MIT", :file => "LICENSE" }
-  s.author                = { "Alexander Schuch" => "[email protected]" }
-  s.social_media_url      = "http://twitter.com/schuchalexander"
+  s.author                = { "huangwh" => "[email protected]" }
+  s.social_media_url      = "http://huang1988519.github.io/"
   s.platform              = :ios
   s.ios.deployment_target = "8.0"
-  s.source                = { :git => "https://github.com/aschuch/AwesomeCache.git", :tag => s.version }
+  s.source                = { :git => "https://github.com/huang1988519/AwesomeCache.git", :tag => s.version }
   s.requires_arc          = true
   s.source_files          = "AwesomeCache/Cache.swift", "AwesomeCache/CacheObject.swift"
 end

AwesomeCache/Cache.swift

@@ -211,7 +211,48 @@ public class Cache<T: NSCoding> {
 			}
 		}
 	}
-
+    //MARK: -- Calculate Disk Cache Size
+    /**
+    Calculate disk cache size
+
+    - parameter completionHandler: Calculate complete then callback
+    */
+    public func calculateDiskCacheSizeWithCompletionHandler(completionHandler: ((size: UInt) -> ())?) {
+        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), { () -> Void in
+            let diskCacheURL = self.cacheDirectory
+
+            let resourceKeys = [NSURLIsDirectoryKey, NSURLTotalFileAllocatedSizeKey]
+            var diskCacheSize: UInt = 0
+
+            if let fileEnumerator = self.fileManager.enumeratorAtURL(diskCacheURL, includingPropertiesForKeys: resourceKeys, options: NSDirectoryEnumerationOptions.SkipsHiddenFiles, errorHandler: nil),
+                urls = fileEnumerator.allObjects as? [NSURL] {
+                    for fileURL in urls {
+                        do {
+                            let resourceValues = try fileURL.resourceValuesForKeys(resourceKeys)
+                            // If it is a Directory. Continue to next file URL.
+                            if let isDirectory = resourceValues[NSURLIsDirectoryKey]?.boolValue {
+                                if isDirectory {
+                                    continue
+                                }
+                            }
+
+                            if let fileSize = resourceValues[NSURLTotalFileAllocatedSizeKey] as? NSNumber {
+                                diskCacheSize += fileSize.unsignedLongValue
+                            }
+                        } catch _ {
+                        }
+
+                    }
+            }
+
+            dispatch_async(dispatch_get_main_queue(), { () -> Void in
+                if let completionHandler = completionHandler {
+                    completionHandler(size: diskCacheSize)
+                }
+            })
+        })
+    }
+
 
 	// MARK: Subscripting
 
@@ -259,5 +300,6 @@ public class Cache<T: NSCoding> {
 			return date
 		}
 	}
-
+
+
 }

Example/Base.lproj/LaunchScreen.xib

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6245" systemVersion="13E28" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="9531" systemVersion="15C50" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6238"/>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9529"/>
     </dependencies>
     <objects>
         <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>

Example/Base.lproj/Main.storyboard

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6751" systemVersion="14C1514" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="vXZ-lx-hvc">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="9531" systemVersion="15C50" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="vXZ-lx-hvc">
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6736"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9529"/>
         <capability name="Constraints to layout margins" minToolsVersion="6.0"/>
     </dependencies>
     <scenes>
@@ -29,7 +29,7 @@
                                 <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
                             </textView>
                             <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="WO3-lW-cdC">
-                                <rect key="frame" x="232" y="176" width="137" height="30"/>
+                                <rect key="frame" x="233.5" y="176" width="134" height="30"/>
                                 <state key="normal" title="Reload From Cache">
                                     <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
                                 </state>
@@ -38,24 +38,42 @@
                                 </connections>
                             </button>
                             <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="cUO-c3-goo">
-                                <rect key="frame" x="251" y="214" width="99" height="30"/>
+                                <rect key="frame" x="252" y="214" width="97" height="30"/>
                                 <state key="normal" title="Save in Cache">
                                     <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
                                 </state>
                                 <connections>
                                     <action selector="saveInCache:" destination="vXZ-lx-hvc" eventType="touchUpInside" id="STv-qo-lMe"/>
                                 </connections>
                             </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="2zZ-Oa-gMA">
+                                <rect key="frame" x="244" y="252" width="112" height="30"/>
+                                <state key="normal" title="Calculate Cache"/>
+                                <connections>
+                                    <action selector="calculateCacheSize:" destination="vXZ-lx-hvc" eventType="touchUpInside" id="5oh-5C-tQX"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="AhF-JF-WWW">
+                                <rect key="frame" x="249" y="285" width="103" height="30"/>
+                                <state key="normal" title="Remove Cache"/>
+                                <connections>
+                                    <action selector="removeCache:" destination="vXZ-lx-hvc" eventType="touchUpInside" id="PrC-4c-isf"/>
+                                </connections>
+                            </button>
                         </subviews>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
                         <constraints>
                             <constraint firstAttribute="centerX" secondItem="cUO-c3-goo" secondAttribute="centerX" constant="-0.5" id="0s9-IX-nOm"/>
                             <constraint firstAttribute="width" secondItem="eud-Cw-V1B" secondAttribute="width" constant="20" id="1xR-At-DgT"/>
+                            <constraint firstItem="AhF-JF-WWW" firstAttribute="top" secondItem="2zZ-Oa-gMA" secondAttribute="bottom" constant="3" id="ABg-DY-nLW"/>
                             <constraint firstItem="eud-Cw-V1B" firstAttribute="top" secondItem="jyV-Pf-zRb" secondAttribute="bottom" constant="187" id="I4t-hI-sMB"/>
+                            <constraint firstItem="2zZ-Oa-gMA" firstAttribute="centerX" secondItem="cUO-c3-goo" secondAttribute="centerX" id="I6D-7W-dvh"/>
+                            <constraint firstItem="2zZ-Oa-gMA" firstAttribute="top" secondItem="cUO-c3-goo" secondAttribute="bottom" constant="8" id="LkJ-d5-au6"/>
                             <constraint firstAttribute="centerX" secondItem="WO3-lW-cdC" secondAttribute="centerX" constant="-0.5" id="Nsq-S3-MP5"/>
                             <constraint firstItem="WO3-lW-cdC" firstAttribute="top" secondItem="eud-Cw-V1B" secondAttribute="bottom" constant="8" id="Uvq-XJ-UMa"/>
                             <constraint firstItem="eud-Cw-V1B" firstAttribute="centerX" secondItem="WO3-lW-cdC" secondAttribute="centerX" id="VcU-lq-hkO"/>
                             <constraint firstItem="eud-Cw-V1B" firstAttribute="top" secondItem="jyV-Pf-zRb" secondAttribute="bottom" id="jx7-Jr-pHE"/>
+                            <constraint firstItem="AhF-JF-WWW" firstAttribute="centerX" secondItem="2zZ-Oa-gMA" secondAttribute="centerX" id="l3S-AG-GRi"/>
                             <constraint firstAttribute="centerX" secondItem="eud-Cw-V1B" secondAttribute="centerX" constant="-0.5" id="m6C-XT-ZOp"/>
                             <constraint firstAttribute="centerY" secondItem="eud-Cw-V1B" secondAttribute="centerY" constant="19" id="wIl-qR-x81"/>
                             <constraint firstItem="WO3-lW-cdC" firstAttribute="top" secondItem="eud-Cw-V1B" secondAttribute="bottom" constant="8" symbolic="YES" id="xsN-t4-xFi"/>

Example/ViewController.swift

@@ -27,5 +27,14 @@ class ViewController: UIViewController {
     @IBAction func saveInCache(sender: AnyObject?) {
         cache["myText"] = textView.text
     }
+    @IBAction func calculateCacheSize(sender: AnyObject?) {
+        cache.calculateDiskCacheSizeWithCompletionHandler { (size) -> () in
+            let kSize = String(format: "%d", size)
+            print(kSize)
+        }
+    }
+    @IBAction func removeCache(sender: AnyObject) {
+        cache.removeAllObjects()
+    }
 }
 

README.md

@@ -35,11 +35,19 @@ cache.setObject("Alex", forKey: "name", expires: .Date(NSDate(timeIntervalSince1
 If an object is accessed after its expiry date, it is automatically removed from the cache and deleted from disk.
 However, you are responsible to delete expired objects regularly by calling `removeExpiredObjects` (e.g. on app launch).
 
+### Calculate cache size
+Asynchronous calculate cache size , callback size on main thread.
+```swift
+cache.calculateDiskCacheSizeWithCompletionHandler { (size) -> () in
+            let kSize = String(format: "%d", size)
+            print(kSize)
+}
+```
 
 ### Awesome API Caching
 
 API responses are usually cached for a specific period of time. AwesomeCache provides an easy method to cache a block of asynchronous tasks.
-
+ 
 ```swift
 cache.setObjectForKey("name", cacheBlock: { success, failure in
   // Perform tasks, e.g. call an API