From c0ee91f8f4f2ceafd191b56381bd9423139ba011 Mon Sep 17 00:00:00 2001 From: kunfei Date: Wed, 25 Sep 2019 17:13:05 +0800 Subject: [PATCH] up --- .../main/java/io/legado/app/utils/ACache.java | 843 ------------------ .../main/java/io/legado/app/utils/ACache.kt | 810 +++++++++++++++++ 2 files changed, 810 insertions(+), 843 deletions(-) delete mode 100644 app/src/main/java/io/legado/app/utils/ACache.java create mode 100644 app/src/main/java/io/legado/app/utils/ACache.kt diff --git a/app/src/main/java/io/legado/app/utils/ACache.java b/app/src/main/java/io/legado/app/utils/ACache.java deleted file mode 100644 index 908460896..000000000 --- a/app/src/main/java/io/legado/app/utils/ACache.java +++ /dev/null @@ -1,843 +0,0 @@ -//Copyright (c) 2017. 章钦豪. All rights reserved. -package io.legado.app.utils; - -import android.content.Context; -import android.graphics.Bitmap; -import android.graphics.BitmapFactory; -import android.graphics.Canvas; -import android.graphics.PixelFormat; -import android.graphics.drawable.BitmapDrawable; -import android.graphics.drawable.Drawable; -import android.util.Log; - -import androidx.annotation.Nullable; - -import org.json.JSONArray; -import org.json.JSONObject; - -import java.io.BufferedReader; -import java.io.BufferedWriter; -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.File; -import java.io.FileOutputStream; -import java.io.FileReader; -import java.io.FileWriter; -import java.io.IOException; -import java.io.ObjectInputStream; -import java.io.ObjectOutputStream; -import java.io.RandomAccessFile; -import java.io.Serializable; -import java.util.Collections; -import java.util.HashMap; -import java.util.Map; -import java.util.Map.Entry; -import java.util.Set; -import java.util.concurrent.atomic.AtomicInteger; -import java.util.concurrent.atomic.AtomicLong; - - -/** - * 本地缓存 - */ -@SuppressWarnings({"unused", "ResultOfMethodCallIgnored", "WeakerAccess"}) -public class ACache { - public static final int TIME_HOUR = 60 * 60; - public static final int TIME_DAY = TIME_HOUR * 24; - private static final int MAX_SIZE = 1000 * 1000 * 50; // 50 mb - private static final int MAX_COUNT = Integer.MAX_VALUE; // 不限制存放数据的数量 - private static Map mInstanceMap = new HashMap<>(); - private ACacheManager mCache; - - private ACache(File cacheDir, long max_size, int max_count) { - try { - if (!cacheDir.exists() && !cacheDir.mkdirs()) { - Log.i("ACache", "can't make dirs in %s" + cacheDir.getAbsolutePath()); - } - mCache = new ACacheManager(cacheDir, max_size, max_count); - } catch (Exception ignored) { - } - } - - public static ACache get(Context ctx) { - return get(ctx, "ACache"); - } - - public static ACache get(Context ctx, String cacheName) { - File f = new File(ctx.getCacheDir(), cacheName); - return get(f, MAX_SIZE, MAX_COUNT); - } - - public static ACache get(File cacheDir) { - return get(cacheDir, MAX_SIZE, MAX_COUNT); - } - - public static ACache get(Context ctx, long max_zise, int max_count) { - try { - File f = new File(ctx.getCacheDir(), "ACache"); - return get(f, max_zise, max_count); - } catch (Exception ignored) { - } - - return null; - } - - public static ACache get(File cacheDir, long max_zise, int max_count) { - try { - ACache manager = mInstanceMap.get(cacheDir.getAbsoluteFile() + myPid()); - if (manager == null) { - manager = new ACache(cacheDir, max_zise, max_count); - mInstanceMap.put(cacheDir.getAbsolutePath() + myPid(), manager); - } - return manager; - } catch (Exception ignored) { - } - - return null; - } - - private static String myPid() { - return "_" + android.os.Process.myPid(); - } - - // ======================================= - // ============ String数据 读写 ============== - // ======================================= - - /** - * 保存 String数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的String数据 - */ - public void put(String key, String value) { - try { - File file = mCache.newFile(key); - BufferedWriter out = null; - try { - out = new BufferedWriter(new FileWriter(file), 1024); - out.write(value); - } catch (IOException ignored) { - } finally { - if (out != null) { - try { - out.flush(); - out.close(); - } catch (IOException ignored) { - } - } - mCache.put(file); - } - } catch (Exception ignored) { - } - - } - - /** - * 保存 String数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的String数据 - * @param saveTime 保存的时间，单位：秒 - */ - public void put(String key, String value, int saveTime) { - put(key, Utils.newStringWithDateInfo(saveTime, value)); - } - - /** - * 读取 String数据 - * - * @return String 数据 - */ - @Nullable - public String getAsString(String key) { - File file = mCache.get(key); - if (!file.exists()) - return null; - boolean removeFile = false; - try (BufferedReader in = new BufferedReader(new FileReader(file))) { - StringBuilder readString = new StringBuilder(); - String currentLine; - while ((currentLine = in.readLine()) != null) { - readString.append(currentLine); - } - if (!Utils.isDue(readString.toString())) { - return Utils.clearDateInfo(readString.toString()); - } else { - removeFile = true; - return null; - } - } catch (IOException e) { - return null; - } finally { - if (removeFile) - remove(key); - } - } - - // ======================================= - // ========== JSONObject 数据 读写 ========= - // ======================================= - - /** - * 保存 JSONObject数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的JSON数据 - */ - public void put(String key, JSONObject value) { - put(key, value.toString()); - } - - /** - * 保存 JSONObject数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的JSONObject数据 - * @param saveTime 保存的时间，单位：秒 - */ - public void put(String key, JSONObject value, int saveTime) { - put(key, value.toString(), saveTime); - } - - /** - * 读取JSONObject数据 - * - * @return JSONObject数据 - */ - public JSONObject getAsJSONObject(String key) { - String JSONString = getAsString(key); - try { - return new JSONObject(JSONString); - } catch (Exception e) { - return null; - } - } - - // ======================================= - // ============ JSONArray 数据 读写 ============= - // ======================================= - - /** - * 保存 JSONArray数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的JSONArray数据 - */ - public void put(String key, JSONArray value) { - put(key, value.toString()); - } - - /** - * 保存 JSONArray数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的JSONArray数据 - * @param saveTime 保存的时间，单位：秒 - */ - public void put(String key, JSONArray value, int saveTime) { - put(key, value.toString(), saveTime); - } - - /** - * 读取JSONArray数据 - * - * @return JSONArray数据 - */ - public JSONArray getAsJSONArray(String key) { - String JSONString = getAsString(key); - try { - return new JSONArray(JSONString); - } catch (Exception e) { - return null; - } - } - - // ======================================= - // ============== byte 数据 读写 ============= - // ======================================= - - /** - * 保存 byte数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的数据 - */ - public void put(String key, byte[] value) { - File file = mCache.newFile(key); - FileOutputStream out = null; - try { - out = new FileOutputStream(file); - out.write(value); - } catch (Exception ignored) { - } finally { - if (out != null) { - try { - out.flush(); - out.close(); - } catch (IOException ignored) { - } - } - mCache.put(file); - } - } - - /** - * 保存 byte数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的数据 - * @param saveTime 保存的时间，单位：秒 - */ - public void put(String key, byte[] value, int saveTime) { - put(key, Utils.newByteArrayWithDateInfo(saveTime, value)); - } - - /** - * 获取 byte 数据 - * - * @return byte 数据 - */ - public byte[] getAsBinary(String key) { - RandomAccessFile RAFile = null; - boolean removeFile = false; - try { - File file = mCache.get(key); - if (!file.exists()) - return null; - RAFile = new RandomAccessFile(file, "r"); - byte[] byteArray = new byte[(int) RAFile.length()]; - RAFile.read(byteArray); - if (!Utils.isDue(byteArray)) { - return Utils.clearDateInfo(byteArray); - } else { - removeFile = true; - return null; - } - } catch (Exception e) { - e.printStackTrace(); - return null; - } finally { - if (RAFile != null) { - try { - RAFile.close(); - } catch (IOException e) { - e.printStackTrace(); - } - } - if (removeFile) - remove(key); - } - } - - // ======================================= - // ============= 序列化 数据 读写 =============== - // ======================================= - - /** - * 保存 Serializable数据 到 缓存中 - * - * @param key 保存的key - * @param value 保存的value - */ - public void put(String key, Serializable value) { - put(key, value, -1); - } - - /** - * 保存 Serializable数据到 缓存中 - * - * @param key 保存的key - * @param value 保存的value - * @param saveTime 保存的时间，单位：秒 - */ - public void put(String key, Serializable value, int saveTime) { - ByteArrayOutputStream baos; - baos = new ByteArrayOutputStream(); - try (ObjectOutputStream oos = new ObjectOutputStream(baos)) { - oos.writeObject(value); - byte[] data = baos.toByteArray(); - if (saveTime != -1) { - put(key, data, saveTime); - } else { - put(key, data); - } - } catch (Exception e) { - e.printStackTrace(); - } - } - - /** - * 读取 Serializable数据 - * - * @return Serializable 数据 - */ - public Object getAsObject(String key) { - byte[] data = getAsBinary(key); - if (data != null) { - ByteArrayInputStream bais = null; - ObjectInputStream ois = null; - try { - bais = new ByteArrayInputStream(data); - ois = new ObjectInputStream(bais); - return ois.readObject(); - } catch (Exception e) { - e.printStackTrace(); - return null; - } finally { - try { - if (bais != null) - bais.close(); - } catch (IOException e) { - e.printStackTrace(); - } - try { - if (ois != null) - ois.close(); - } catch (IOException e) { - e.printStackTrace(); - } - } - } - return null; - - } - - // ======================================= - // ============== bitmap 数据 读写 ============= - // ======================================= - - /** - * 保存 bitmap 到 缓存中 - * - * @param key 保存的key - * @param value 保存的bitmap数据 - */ - public void put(String key, Bitmap value) { - put(key, Utils.Bitmap2Bytes(value)); - } - - /** - * 保存 bitmap 到 缓存中 - * - * @param key 保存的key - * @param value 保存的 bitmap 数据 - * @param saveTime 保存的时间，单位：秒 - */ - public void put(String key, Bitmap value, int saveTime) { - put(key, Utils.Bitmap2Bytes(value), saveTime); - } - - /** - * 读取 bitmap 数据 - * - * @return bitmap 数据 - */ - public Bitmap getAsBitmap(String key) { - if (getAsBinary(key) == null) { - return null; - } - return Utils.Bytes2Bimap(getAsBinary(key)); - } - - // ======================================= - // ============= drawable 数据 读写 ============= - // ======================================= - - /** - * 保存 drawable 到 缓存中 - * - * @param key 保存的key - * @param value 保存的drawable数据 - */ - public void put(String key, Drawable value) { - put(key, Utils.drawable2Bitmap(value)); - } - - /** - * 保存 drawable 到 缓存中 - * - * @param key 保存的key - * @param value 保存的 drawable 数据 - * @param saveTime 保存的时间，单位：秒 - */ - public void put(String key, Drawable value, int saveTime) { - put(key, Utils.drawable2Bitmap(value), saveTime); - } - - /** - * 读取 Drawable 数据 - * - * @return Drawable 数据 - */ - public Drawable getAsDrawable(String key) { - if (getAsBinary(key) == null) { - return null; - } - return Utils.bitmap2Drawable(Utils.Bytes2Bimap(getAsBinary(key))); - } - - /** - * 获取缓存文件 - * - * @return value 缓存的文件 - */ - public File file(String key) { - try { - File f = mCache.newFile(key); - if (f.exists()) { - return f; - } - } catch (Exception e) { - e.printStackTrace(); - } - - return null; - } - - /** - * 移除某个key - * - * @return 是否移除成功 - */ - public boolean remove(String key) { - return mCache.remove(key); - } - - /** - * 清除所有数据 - */ - public void clear() { - mCache.clear(); - } - - /** - * @author 杨福海（michael） www.yangfuhai.com - * @version 1.0 - * title 时间计算工具类 - */ - private static class Utils { - - private static final char mSeparator = ' '; - - /** - * 判断缓存的String数据是否到期 - * - * @return true：到期了 false：还没有到期 - */ - private static boolean isDue(String str) { - return isDue(str.getBytes()); - } - - /** - * 判断缓存的byte数据是否到期 - * - * @return true：到期了 false：还没有到期 - */ - private static boolean isDue(byte[] data) { - try { - String[] strs = getDateInfoFromDate(data); - if (strs != null && strs.length == 2) { - String saveTimeStr = strs[0]; - while (saveTimeStr.startsWith("0")) { - saveTimeStr = saveTimeStr - .substring(1); - } - long saveTime = Long.valueOf(saveTimeStr); - long deleteAfter = Long.valueOf(strs[1]); - if (System.currentTimeMillis() > saveTime + deleteAfter * 1000) { - return true; - } - } - } catch (Exception e) { - e.printStackTrace(); - } - - return false; - } - - private static String newStringWithDateInfo(int second, String strInfo) { - return createDateInfo(second) + strInfo; - } - - private static byte[] newByteArrayWithDateInfo(int second, byte[] data2) { - byte[] data1 = createDateInfo(second).getBytes(); - byte[] retdata = new byte[data1.length + data2.length]; - System.arraycopy(data1, 0, retdata, 0, data1.length); - System.arraycopy(data2, 0, retdata, data1.length, data2.length); - return retdata; - } - - private static String clearDateInfo(String strInfo) { - if (strInfo != null && hasDateInfo(strInfo.getBytes())) { - strInfo = strInfo.substring(strInfo.indexOf(mSeparator) + 1); - } - return strInfo; - } - - private static byte[] clearDateInfo(byte[] data) { - if (hasDateInfo(data)) { - return copyOfRange(data, indexOf(data, mSeparator) + 1, - data.length); - } - return data; - } - - private static boolean hasDateInfo(byte[] data) { - return data != null && data.length > 15 && data[13] == '-' - && indexOf(data, mSeparator) > 14; - } - - private static String[] getDateInfoFromDate(byte[] data) { - if (hasDateInfo(data)) { - String saveDate = new String(copyOfRange(data, 0, 13)); - String deleteAfter = new String(copyOfRange(data, 14, - indexOf(data, mSeparator))); - return new String[]{saveDate, deleteAfter}; - } - return null; - } - - private static int indexOf(byte[] data, char c) { - for (int i = 0; i < data.length; i++) { - if (data[i] == c) { - return i; - } - } - return -1; - } - - private static byte[] copyOfRange(byte[] original, int from, int to) { - int newLength = to - from; - if (newLength < 0) - throw new IllegalArgumentException(from + " > " + to); - byte[] copy = new byte[newLength]; - System.arraycopy(original, from, copy, 0, - Math.min(original.length - from, newLength)); - return copy; - } - - private static String createDateInfo(int second) { - StringBuilder currentTime = new StringBuilder(System.currentTimeMillis() + ""); - while (currentTime.length() < 13) { - currentTime.insert(0, "0"); - } - return currentTime + "-" + second + mSeparator; - } - - /* - * Bitmap → byte[] - */ - private static byte[] Bitmap2Bytes(Bitmap bm) { - if (bm == null) { - return null; - } - ByteArrayOutputStream baos = new ByteArrayOutputStream(); - bm.compress(Bitmap.CompressFormat.PNG, 100, baos); - return baos.toByteArray(); - } - - /* - * byte[] → Bitmap - */ - private static Bitmap Bytes2Bimap(byte[] b) { - if (b.length == 0) { - return null; - } - return BitmapFactory.decodeByteArray(b, 0, b.length); - } - - /* - * Drawable → Bitmap - */ - private static Bitmap drawable2Bitmap(Drawable drawable) { - if (drawable == null) { - return null; - } - // 取 drawable 的长宽 - int w = drawable.getIntrinsicWidth(); - int h = drawable.getIntrinsicHeight(); - // 取 drawable 的颜色格式 - Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 - : Bitmap.Config.RGB_565; - // 建立对应 bitmap - Bitmap bitmap = Bitmap.createBitmap(w, h, config); - // 建立对应 bitmap 的画布 - Canvas canvas = new Canvas(bitmap); - drawable.setBounds(0, 0, w, h); - // 把 drawable 内容画到画布中 - drawable.draw(canvas); - return bitmap; - } - - /* - * Bitmap → Drawable - */ - @SuppressWarnings("deprecation") - private static Drawable bitmap2Drawable(Bitmap bm) { - if (bm == null) { - return null; - } - return new BitmapDrawable(bm); - } - } - - /** - * @author 杨福海（michael） www.yangfuhai.com - * @version 1.0 - * title 缓存管理器 - */ - public class ACacheManager { - private final AtomicLong cacheSize; - private final AtomicInteger cacheCount; - private final long sizeLimit; - private final int countLimit; - private final Map lastUsageDates = Collections - .synchronizedMap(new HashMap<>()); - protected File cacheDir; - - private ACacheManager(File cacheDir, long sizeLimit, int countLimit) { - this.cacheDir = cacheDir; - this.sizeLimit = sizeLimit; - this.countLimit = countLimit; - cacheSize = new AtomicLong(); - cacheCount = new AtomicInteger(); - calculateCacheSizeAndCacheCount(); - } - - /** - * 计算 cacheSize和cacheCount - */ - private void calculateCacheSizeAndCacheCount() { - new Thread(() -> { - - try { - int size = 0; - int count = 0; - File[] cachedFiles = cacheDir.listFiles(); - if (cachedFiles != null) { - for (File cachedFile : cachedFiles) { - size += calculateSize(cachedFile); - count += 1; - lastUsageDates.put(cachedFile, - cachedFile.lastModified()); - } - cacheSize.set(size); - cacheCount.set(count); - } - } catch (Exception e) { - e.printStackTrace(); - } - - }).start(); - } - - private void put(File file) { - - try { - int curCacheCount = cacheCount.get(); - while (curCacheCount + 1 > countLimit) { - long freedSize = removeNext(); - cacheSize.addAndGet(-freedSize); - - curCacheCount = cacheCount.addAndGet(-1); - } - cacheCount.addAndGet(1); - - long valueSize = calculateSize(file); - long curCacheSize = cacheSize.get(); - while (curCacheSize + valueSize > sizeLimit) { - long freedSize = removeNext(); - curCacheSize = cacheSize.addAndGet(-freedSize); - } - cacheSize.addAndGet(valueSize); - - long currentTime = System.currentTimeMillis(); - file.setLastModified(currentTime); - lastUsageDates.put(file, currentTime); - } catch (Exception e) { - e.printStackTrace(); - } - } - - private File get(String key) { - File file = newFile(key); - long currentTime = System.currentTimeMillis(); - file.setLastModified(currentTime); - lastUsageDates.put(file, currentTime); - - return file; - } - - private File newFile(String key) { - return new File(cacheDir, key.hashCode() + ""); - } - - private boolean remove(String key) { - File image = get(key); - return image.delete(); - } - - private void clear() { - try { - lastUsageDates.clear(); - cacheSize.set(0); - File[] files = cacheDir.listFiles(); - if (files != null) { - for (File f : files) { - f.delete(); - } - } - } catch (Exception e) { - e.printStackTrace(); - } - - } - - /** - * 移除旧的文件 - */ - private long removeNext() { - try { - if (lastUsageDates.isEmpty()) { - return 0; - } - - Long oldestUsage = null; - File mostLongUsedFile = null; - Set> entries = lastUsageDates.entrySet(); - synchronized (lastUsageDates) { - for (Entry entry : entries) { - if (mostLongUsedFile == null) { - mostLongUsedFile = entry.getKey(); - oldestUsage = entry.getValue(); - } else { - Long lastValueUsage = entry.getValue(); - if (lastValueUsage < oldestUsage) { - oldestUsage = lastValueUsage; - mostLongUsedFile = entry.getKey(); - } - } - } - } - - long fileSize = 0; - if (mostLongUsedFile != null) { - fileSize = calculateSize(mostLongUsedFile); - if (mostLongUsedFile.delete()) { - lastUsageDates.remove(mostLongUsedFile); - } - } - return fileSize; - } catch (Exception e) { - e.printStackTrace(); - return 0; - } - } - - private long calculateSize(File file) { - return file.length(); - } - } - -} diff --git a/app/src/main/java/io/legado/app/utils/ACache.kt b/app/src/main/java/io/legado/app/utils/ACache.kt new file mode 100644 index 000000000..f40fac7f2 --- /dev/null +++ b/app/src/main/java/io/legado/app/utils/ACache.kt @@ -0,0 +1,810 @@ +//Copyright (c) 2017. 章钦豪. All rights reserved. +package io.legado.app.utils + +import android.content.Context +import android.graphics.Bitmap +import android.graphics.BitmapFactory +import android.graphics.Canvas +import android.graphics.PixelFormat +import android.graphics.drawable.BitmapDrawable +import android.graphics.drawable.Drawable +import android.util.Log +import org.json.JSONArray +import org.json.JSONObject +import java.io.* +import java.util.* +import java.util.concurrent.atomic.AtomicInteger +import java.util.concurrent.atomic.AtomicLong + + +/** + * 本地缓存 + */ +class ACache private constructor(cacheDir: File, max_size: Long, max_count: Int) { + private lateinit var mCache: ACacheManager + + init { + try { + if (!cacheDir.exists() && !cacheDir.mkdirs()) { + Log.i("ACache", "can't make dirs in %s" + cacheDir.absolutePath) + } + mCache = ACacheManager(cacheDir, max_size, max_count) + } catch (ignored: Exception) { + } + + } + + // ======================================= + // ============ String数据 读写 ============== + // ======================================= + + /** + * 保存 String数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的String数据 + */ + fun put(key: String, value: String) { + try { + val file = mCache.newFile(key) + var out: BufferedWriter? = null + try { + out = BufferedWriter(FileWriter(file), 1024) + out.write(value) + } catch (ignored: IOException) { + } finally { + if (out != null) { + try { + out.flush() + out.close() + } catch (ignored: IOException) { + } + + } + mCache.put(file) + } + } catch (ignored: Exception) { + } + + } + + /** + * 保存 String数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的String数据 + * @param saveTime 保存的时间，单位：秒 + */ + fun put(key: String, value: String, saveTime: Int) { + put(key, Utils.newStringWithDateInfo(saveTime, value)) + } + + /** + * 读取 String数据 + * + * @return String 数据 + */ + fun getAsString(key: String): String? { + val file = mCache[key] + if (!file.exists()) + return null + var removeFile = false + return try { + val text = file.readText() + if (!Utils.isDue(text)) { + Utils.clearDateInfo(text) + } else { + removeFile = true + null + } + } catch (e: IOException) { + null + } finally { + if (removeFile) + remove(key) + } + } + + // ======================================= + // ========== JSONObject 数据 读写 ========= + // ======================================= + + /** + * 保存 JSONObject数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的JSON数据 + */ + fun put(key: String, value: JSONObject) { + put(key, value.toString()) + } + + /** + * 保存 JSONObject数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的JSONObject数据 + * @param saveTime 保存的时间，单位：秒 + */ + fun put(key: String, value: JSONObject, saveTime: Int) { + put(key, value.toString(), saveTime) + } + + /** + * 读取JSONObject数据 + * + * @return JSONObject数据 + */ + fun getAsJSONObject(key: String): JSONObject? { + val json = getAsString(key) + return try { + JSONObject(json) + } catch (e: Exception) { + null + } + + } + + // ======================================= + // ============ JSONArray 数据 读写 ============= + // ======================================= + + /** + * 保存 JSONArray数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的JSONArray数据 + */ + fun put(key: String, value: JSONArray) { + put(key, value.toString()) + } + + /** + * 保存 JSONArray数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的JSONArray数据 + * @param saveTime 保存的时间，单位：秒 + */ + fun put(key: String, value: JSONArray, saveTime: Int) { + put(key, value.toString(), saveTime) + } + + /** + * 读取JSONArray数据 + * + * @return JSONArray数据 + */ + fun getAsJSONArray(key: String): JSONArray? { + val json = getAsString(key) + return try { + JSONArray(json) + } catch (e: Exception) { + null + } + + } + + // ======================================= + // ============== byte 数据 读写 ============= + // ======================================= + + /** + * 保存 byte数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的数据 + */ + fun put(key: String, value: ByteArray) { + val file = mCache.newFile(key) + var out: FileOutputStream? = null + try { + out = FileOutputStream(file) + out.write(value) + } catch (ignored: Exception) { + } finally { + if (out != null) { + try { + out.flush() + out.close() + } catch (ignored: IOException) { + } + + } + mCache.put(file) + } + } + + /** + * 保存 byte数据 到 缓存中 + * + * @param key 保存的key + * @param value 保存的数据 + * @param saveTime 保存的时间，单位：秒 + */ + fun put(key: String, value: ByteArray, saveTime: Int) { + put(key, Utils.newByteArrayWithDateInfo(saveTime, value)) + } + + /** + * 获取 byte 数据 + * + * @return byte 数据 + */ + fun getAsBinary(key: String): ByteArray? { + var raf: RandomAccessFile? = null + var removeFile = false + try { + val file = mCache[key] + if (!file.exists()) + return null + raf = RandomAccessFile(file, "r") + val byteArray = ByteArray(raf.length().toInt()) + raf.read(byteArray) + return if (!Utils.isDue(byteArray)) { + Utils.clearDateInfo(byteArray) + } else { + removeFile = true + null + } + } catch (e: Exception) { + e.printStackTrace() + return null + } finally { + if (raf != null) { + try { + raf.close() + } catch (e: IOException) { + e.printStackTrace() + } + + } + if (removeFile) + remove(key) + } + } + + /** + * 保存 Serializable数据到 缓存中 + * + * @param key 保存的key + * @param value 保存的value + * @param saveTime 保存的时间，单位：秒 + */ + @JvmOverloads + fun put(key: String, value: Serializable, saveTime: Int = -1) { + try { + val baos = ByteArrayOutputStream() + ObjectOutputStream(baos).use { oos -> + oos.writeObject(value) + val data = baos.toByteArray() + if (saveTime != -1) { + put(key, data, saveTime) + } else { + put(key, data) + } + } + } catch (e: Exception) { + e.printStackTrace() + } + } + + /** + * 读取 Serializable数据 + * + * @return Serializable 数据 + */ + fun getAsObject(key: String): Any? { + val data = getAsBinary(key) + if (data != null) { + var bais: ByteArrayInputStream? = null + var ois: ObjectInputStream? = null + try { + bais = ByteArrayInputStream(data) + ois = ObjectInputStream(bais) + return ois.readObject() + } catch (e: Exception) { + e.printStackTrace() + return null + } finally { + try { + bais?.close() + } catch (e: IOException) { + e.printStackTrace() + } + + try { + ois?.close() + } catch (e: IOException) { + e.printStackTrace() + } + + } + } + return null + + } + + // ======================================= + // ============== bitmap 数据 读写 ============= + // ======================================= + + /** + * 保存 bitmap 到 缓存中 + * + * @param key 保存的key + * @param value 保存的bitmap数据 + */ + fun put(key: String, value: Bitmap) { + put(key, Utils.Bitmap2Bytes(value)) + } + + /** + * 保存 bitmap 到 缓存中 + * + * @param key 保存的key + * @param value 保存的 bitmap 数据 + * @param saveTime 保存的时间，单位：秒 + */ + fun put(key: String, value: Bitmap, saveTime: Int) { + put(key, Utils.Bitmap2Bytes(value), saveTime) + } + + /** + * 读取 bitmap 数据 + * + * @return bitmap 数据 + */ + fun getAsBitmap(key: String): Bitmap? { + return if (getAsBinary(key) == null) { + null + } else Utils.Bytes2Bimap(getAsBinary(key)!!) + } + + // ======================================= + // ============= drawable 数据 读写 ============= + // ======================================= + + /** + * 保存 drawable 到 缓存中 + * + * @param key 保存的key + * @param value 保存的drawable数据 + */ + fun put(key: String, value: Drawable) { + put(key, Utils.drawable2Bitmap(value)) + } + + /** + * 保存 drawable 到 缓存中 + * + * @param key 保存的key + * @param value 保存的 drawable 数据 + * @param saveTime 保存的时间，单位：秒 + */ + fun put(key: String, value: Drawable, saveTime: Int) { + put(key, Utils.drawable2Bitmap(value), saveTime) + } + + /** + * 读取 Drawable 数据 + * + * @return Drawable 数据 + */ + fun getAsDrawable(key: String): Drawable? { + return if (getAsBinary(key) == null) { + null + } else Utils.bitmap2Drawable( + Utils.Bytes2Bimap( + getAsBinary(key)!! + ) + ) + } + + /** + * 获取缓存文件 + * + * @return value 缓存的文件 + */ + fun file(key: String): File? { + try { + val f = mCache.newFile(key) + if (f.exists()) { + return f + } + } catch (e: Exception) { + e.printStackTrace() + } + + return null + } + + /** + * 移除某个key + * + * @return 是否移除成功 + */ + fun remove(key: String): Boolean { + return mCache.remove(key) + } + + /** + * 清除所有数据 + */ + fun clear() { + mCache.clear() + } + + /** + * @author 杨福海（michael） www.yangfuhai.com + * @version 1.0 + * title 时间计算工具类 + */ + private object Utils { + + private val mSeparator = ' ' + + /** + * 判断缓存的String数据是否到期 + * + * @return true：到期了 false：还没有到期 + */ + fun isDue(str: String): Boolean { + return isDue(str.toByteArray()) + } + + /** + * 判断缓存的byte数据是否到期 + * + * @return true：到期了 false：还没有到期 + */ + fun isDue(data: ByteArray): Boolean { + try { + val strs = getDateInfoFromDate(data) + if (strs != null && strs.size == 2) { + var saveTimeStr = strs[0] + while (saveTimeStr.startsWith("0")) { + saveTimeStr = saveTimeStr + .substring(1) + } + val saveTime = java.lang.Long.valueOf(saveTimeStr) + val deleteAfter = java.lang.Long.valueOf(strs[1]) + if (System.currentTimeMillis() > saveTime + deleteAfter * 1000) { + return true + } + } + } catch (e: Exception) { + e.printStackTrace() + } + + return false + } + + fun newStringWithDateInfo(second: Int, strInfo: String): String { + return createDateInfo(second) + strInfo + } + + fun newByteArrayWithDateInfo(second: Int, data2: ByteArray): ByteArray { + val data1 = createDateInfo(second).toByteArray() + val retdata = ByteArray(data1.size + data2.size) + System.arraycopy(data1, 0, retdata, 0, data1.size) + System.arraycopy(data2, 0, retdata, data1.size, data2.size) + return retdata + } + + fun clearDateInfo(strInfo: String?): String? { + var strInfo = strInfo + if (strInfo != null && hasDateInfo(strInfo.toByteArray())) { + strInfo = strInfo.substring(strInfo.indexOf(mSeparator) + 1) + } + return strInfo + } + + fun clearDateInfo(data: ByteArray): ByteArray { + return if (hasDateInfo(data)) { + copyOfRange( + data, indexOf(data, mSeparator) + 1, + data.size + ) + } else data + } + + fun hasDateInfo(data: ByteArray?): Boolean { + return (data != null && data.size > 15 && data[13] == '-'.toByte() + && indexOf(data, mSeparator) > 14) + } + + fun getDateInfoFromDate(data: ByteArray): Array? { + if (hasDateInfo(data)) { + val saveDate = String(copyOfRange(data, 0, 13)) + val deleteAfter = String( + copyOfRange( + data, 14, + indexOf(data, mSeparator) + ) + ) + return arrayOf(saveDate, deleteAfter) + } + return null + } + + private fun indexOf(data: ByteArray, c: Char): Int { + for (i in data.indices) { + if (data[i] == c.toByte()) { + return i + } + } + return -1 + } + + private fun copyOfRange(original: ByteArray, from: Int, to: Int): ByteArray { + val newLength = to - from + require(newLength >= 0) { "$from > $to" } + val copy = ByteArray(newLength) + System.arraycopy( + original, from, copy, 0, + Math.min(original.size - from, newLength) + ) + return copy + } + + private fun createDateInfo(second: Int): String { + val currentTime = StringBuilder(System.currentTimeMillis().toString() + "") + while (currentTime.length < 13) { + currentTime.insert(0, "0") + } + return "$currentTime-$second$mSeparator" + } + + /* + * Bitmap → byte[] + */ + fun Bitmap2Bytes(bm: Bitmap): ByteArray { + val baos = ByteArrayOutputStream() + bm.compress(Bitmap.CompressFormat.PNG, 100, baos) + return baos.toByteArray() + } + + /* + * byte[] → Bitmap + */ + fun Bytes2Bimap(b: ByteArray): Bitmap? { + return if (b.size == 0) { + null + } else BitmapFactory.decodeByteArray(b, 0, b.size) + } + + /* + * Drawable → Bitmap + */ + fun drawable2Bitmap(drawable: Drawable): Bitmap { + // 取 drawable 的长宽 + val w = drawable.intrinsicWidth + val h = drawable.intrinsicHeight + // 取 drawable 的颜色格式 + val config = if (drawable.opacity != PixelFormat.OPAQUE) + Bitmap.Config.ARGB_8888 + else + Bitmap.Config.RGB_565 + // 建立对应 bitmap + val bitmap = Bitmap.createBitmap(w, h, config) + // 建立对应 bitmap 的画布 + val canvas = Canvas(bitmap) + drawable.setBounds(0, 0, w, h) + // 把 drawable 内容画到画布中 + drawable.draw(canvas) + return bitmap + } + + /* + * Bitmap → Drawable + */ + fun bitmap2Drawable(bm: Bitmap?): Drawable? { + return if (bm == null) { + null + } else BitmapDrawable(bm) + } + } + + /** + * @author 杨福海（michael） www.yangfuhai.com + * @version 1.0 + * title 缓存管理器 + */ + open inner class ACacheManager( + private var cacheDir: File, + private val sizeLimit: Long, + private val countLimit: Int + ) { + private val cacheSize: AtomicLong = AtomicLong() + private val cacheCount: AtomicInteger = AtomicInteger() + private val lastUsageDates = Collections + .synchronizedMap(HashMap()) + + init { + calculateCacheSizeAndCacheCount() + } + + /** + * 计算 cacheSize和cacheCount + */ + private fun calculateCacheSizeAndCacheCount() { + Thread { + + try { + var size = 0 + var count = 0 + val cachedFiles = cacheDir.listFiles() + if (cachedFiles != null) { + for (cachedFile in cachedFiles) { + size += calculateSize(cachedFile).toInt() + count += 1 + lastUsageDates[cachedFile] = cachedFile.lastModified() + } + cacheSize.set(size.toLong()) + cacheCount.set(count) + } + } catch (e: Exception) { + e.printStackTrace() + } + + + }.start() + } + + fun put(file: File) { + + try { + var curCacheCount = cacheCount.get() + while (curCacheCount + 1 > countLimit) { + val freedSize = removeNext() + cacheSize.addAndGet(-freedSize) + + curCacheCount = cacheCount.addAndGet(-1) + } + cacheCount.addAndGet(1) + + val valueSize = calculateSize(file) + var curCacheSize = cacheSize.get() + while (curCacheSize + valueSize > sizeLimit) { + val freedSize = removeNext() + curCacheSize = cacheSize.addAndGet(-freedSize) + } + cacheSize.addAndGet(valueSize) + + val currentTime = System.currentTimeMillis() + file.setLastModified(currentTime) + lastUsageDates[file] = currentTime + } catch (e: Exception) { + e.printStackTrace() + } + + } + + operator fun get(key: String): File { + val file = newFile(key) + val currentTime = System.currentTimeMillis() + file.setLastModified(currentTime) + lastUsageDates[file] = currentTime + + return file + } + + fun newFile(key: String): File { + return File(cacheDir, key.hashCode().toString() + "") + } + + fun remove(key: String): Boolean { + val image = get(key) + return image.delete() + } + + fun clear() { + try { + lastUsageDates.clear() + cacheSize.set(0) + val files = cacheDir.listFiles() + if (files != null) { + for (f in files) { + f.delete() + } + } + } catch (e: Exception) { + e.printStackTrace() + } + + } + + /** + * 移除旧的文件 + */ + private fun removeNext(): Long { + try { + if (lastUsageDates.isEmpty()) { + return 0 + } + + var oldestUsage: Long? = null + var mostLongUsedFile: File? = null + val entries = lastUsageDates.entries + synchronized(lastUsageDates) { + for ((key, lastValueUsage) in entries) { + if (mostLongUsedFile == null) { + mostLongUsedFile = key + oldestUsage = lastValueUsage + } else { + if (lastValueUsage < oldestUsage!!) { + oldestUsage = lastValueUsage + mostLongUsedFile = key + } + } + } + } + + var fileSize: Long = 0 + if (mostLongUsedFile != null) { + fileSize = calculateSize(mostLongUsedFile!!) + if (mostLongUsedFile!!.delete()) { + lastUsageDates.remove(mostLongUsedFile) + } + } + return fileSize + } catch (e: Exception) { + e.printStackTrace() + return 0 + } + + } + + private fun calculateSize(file: File): Long { + return file.length() + } + } + + companion object { + const val TIME_HOUR = 60 * 60 + const val TIME_DAY = TIME_HOUR * 24 + private const val MAX_SIZE = 1000 * 1000 * 50 // 50 mb + private const val MAX_COUNT = Integer.MAX_VALUE // 不限制存放数据的数量 + private val mInstanceMap = HashMap() + + @JvmOverloads + operator fun get(ctx: Context, cacheName: String = "ACache"): ACache? { + val f = File(ctx.cacheDir, cacheName) + return get(f, MAX_SIZE.toLong(), MAX_COUNT) + } + + operator fun get(ctx: Context, max_zise: Long, max_count: Int): ACache? { + try { + val f = File(ctx.cacheDir, "ACache") + return get(f, max_zise, max_count) + } catch (ignored: Exception) { + } + + return null + } + + @JvmOverloads + operator fun get( + cacheDir: File, + max_zise: Long = MAX_SIZE.toLong(), + max_count: Int = MAX_COUNT + ): ACache? { + try { + var manager = mInstanceMap[cacheDir.absoluteFile.toString() + myPid()] + if (manager == null) { + manager = ACache(cacheDir, max_zise, max_count) + mInstanceMap[cacheDir.absolutePath + myPid()] = manager + } + return manager + } catch (ignored: Exception) { + } + return null + } + + private fun myPid(): String { + return "_" + android.os.Process.myPid() + } + } + +} \ No newline at end of file