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@@ -50,821 +50,793 @@ import java.util.concurrent.atomic.AtomicLong; |
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* @author Michael Yang(www.yangfuhai.com) update at 2013.08.07
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*/
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public class ACache {
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- public static final int TIME_HOUR = 60 * 60;
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- public static final int TIME_DAY = TIME_HOUR * 24;
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- private static final int MAX_SIZE = 1000 * 1000 * 50; // 50 mb
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- private static final int MAX_COUNT = Integer.MAX_VALUE; // 不限制存放数据的数量
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- private static Map<String, ACache> mInstanceMap = new HashMap<String, ACache>();
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- private ACacheManager mCache;
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-
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- public static ACache get(Context ctx) {
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- return get(ctx, "ACache");
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- }
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-
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- public static ACache get(Context ctx, String cacheName) {
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- File f = new File(ctx.getCacheDir(), cacheName);
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- return get(f, MAX_SIZE, MAX_COUNT);
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- }
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-
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- public static ACache get(File cacheDir) {
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- return get(cacheDir, MAX_SIZE, MAX_COUNT);
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- }
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-
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- public static ACache get(Context ctx, long max_zise, int max_count) {
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- File f = new File(ctx.getCacheDir(), "ACache");
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- return get(f, max_zise, max_count);
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- }
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-
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- public static ACache get(File cacheDir, long max_zise, int max_count) {
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- ACache manager = mInstanceMap.get(cacheDir.getAbsoluteFile() + myPid());
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- if (manager == null) {
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- manager = new ACache(cacheDir, max_zise, max_count);
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- mInstanceMap.put(cacheDir.getAbsolutePath() + myPid(), manager);
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- }
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- return manager;
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- }
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-
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- private static String myPid() {
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- return "_" + android.os.Process.myPid();
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- }
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-
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- private ACache(File cacheDir, long max_size, int max_count) {
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- if (!cacheDir.exists() && !cacheDir.mkdirs()) {
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- throw new RuntimeException("can't make dirs in "
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- + cacheDir.getAbsolutePath());
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- }
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- mCache = new ACacheManager(cacheDir, max_size, max_count);
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- }
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-
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- // =======================================
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- // ============ String数据 读写 ==============
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- // =======================================
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- /**
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- * 保存 String数据 到 缓存中
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- *
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- * @param key
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- * 保存的key
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- * @param value
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- * 保存的String数据
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- */
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- public void put(String key, String value) {
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- File file = mCache.newFile(key);
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- BufferedWriter out = null;
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- try {
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- out = new BufferedWriter(new FileWriter(file), 1024);
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- out.write(value);
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- } catch (IOException e) {
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- e.printStackTrace();
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- } finally {
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- if (out != null) {
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- try {
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- out.flush();
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- out.close();
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- } catch (IOException e) {
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- e.printStackTrace();
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- }
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- }
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- mCache.put(file);
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- }
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- }
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-
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- /**
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- * 保存 String数据 到 缓存中
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- *
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- * @param key
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- * 保存的key
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- * @param value
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- * 保存的String数据
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- * @param saveTime
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- * 保存的时间,单位:秒
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- */
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- public void put(String key, String value, int saveTime) {
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- put(key, Utils.newStringWithDateInfo(saveTime, value));
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- }
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-
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- /**
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- * 读取 String数据
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- *
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- * @param key
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- * @return String 数据
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- */
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- public String getAsString(String key) {
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- File file = mCache.get(key);
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- if (!file.exists())
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- return null;
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- boolean removeFile = false;
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- BufferedReader in = null;
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- try {
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- in = new BufferedReader(new FileReader(file));
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- String readString = "";
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- String currentLine;
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- while ((currentLine = in.readLine()) != null) {
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- readString += currentLine;
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- }
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- if (!Utils.isDue(readString)) {
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- return Utils.clearDateInfo(readString);
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- } else {
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- removeFile = true;
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- return null;
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- }
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- } catch (IOException e) {
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- e.printStackTrace();
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- return null;
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- } finally {
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- if (in != null) {
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- try {
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- in.close();
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- } catch (IOException e) {
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- e.printStackTrace();
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- }
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- }
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- if (removeFile)
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- remove(key);
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- }
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- }
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-
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- // =======================================
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- // ============= JSONObject 数据 读写 ==============
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- // =======================================
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- /**
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- * 保存 JSONObject数据 到 缓存中
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- *
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- * @param key
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- * 保存的key
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- * @param value
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- * 保存的JSON数据
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- */
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- public void put(String key, JSONObject value) {
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- put(key, value.toString());
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- }
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-
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- /**
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- * 保存 JSONObject数据 到 缓存中
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- *
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- * @param key
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- * 保存的key
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- * @param value
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- * 保存的JSONObject数据
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- * @param saveTime
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- * 保存的时间,单位:秒
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- */
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- public void put(String key, JSONObject value, int saveTime) {
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- put(key, value.toString(), saveTime);
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- }
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-
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- /**
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- * 读取JSONObject数据
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- *
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- * @param key
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- * @return JSONObject数据
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- */
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- public JSONObject getAsJSONObject(String key) {
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- String JSONString = getAsString(key);
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- try {
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- JSONObject obj = new JSONObject(JSONString);
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- return obj;
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- } catch (Exception e) {
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- e.printStackTrace();
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- return null;
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- }
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- }
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-
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- // =======================================
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- // ============ JSONArray 数据 读写 =============
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- // =======================================
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- /**
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- * 保存 JSONArray数据 到 缓存中
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- *
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- * @param key
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- * 保存的key
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- * @param value
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- * 保存的JSONArray数据
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- */
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- public void put(String key, JSONArray value) {
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- put(key, value.toString());
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- }
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-
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- /**
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- * 保存 JSONArray数据 到 缓存中
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- *
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- * @param key
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- * 保存的key
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- * @param value
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- * 保存的JSONArray数据
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- * @param saveTime
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- * 保存的时间,单位:秒
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- */
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- public void put(String key, JSONArray value, int saveTime) {
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- put(key, value.toString(), saveTime);
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- }
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-
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- /**
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- * 读取JSONArray数据
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- *
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- * @param key
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- * @return JSONArray数据
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- */
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- public JSONArray getAsJSONArray(String key) {
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- String JSONString = getAsString(key);
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- try {
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- JSONArray obj = new JSONArray(JSONString);
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- return obj;
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- } catch (Exception e) {
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- e.printStackTrace();
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- return null;
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- }
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- }
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-
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- // =======================================
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- // ============== byte 数据 读写 =============
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- // =======================================
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- /**
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282
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- * 保存 byte数据 到 缓存中
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- *
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- * @param key
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285
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- * 保存的key
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- * @param value
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287
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- * 保存的数据
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- */
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289
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- public void put(String key, byte[] value) {
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290
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- File file = mCache.newFile(key);
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291
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- FileOutputStream out = null;
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292
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- try {
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293
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- out = new FileOutputStream(file);
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- out.write(value);
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- } catch (Exception e) {
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- e.printStackTrace();
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297
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- } finally {
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298
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- if (out != null) {
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299
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- try {
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300
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- out.flush();
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301
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- out.close();
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302
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- } catch (IOException e) {
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303
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- e.printStackTrace();
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- }
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305
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- }
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306
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- mCache.put(file);
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- }
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- }
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-
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310
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- /**
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311
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- * 保存 byte数据 到 缓存中
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312
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- *
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313
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- * @param key
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314
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- * 保存的key
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315
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- * @param value
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316
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- * 保存的数据
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317
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- * @param saveTime
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318
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- * 保存的时间,单位:秒
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319
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- */
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320
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- public void put(String key, byte[] value, int saveTime) {
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321
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- put(key, Utils.newByteArrayWithDateInfo(saveTime, value));
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322
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- }
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323
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-
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324
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- /**
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325
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- * 获取 byte 数据
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326
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- *
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327
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- * @param key
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328
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- * @return byte 数据
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329
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- */
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330
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- public byte[] getAsBinary(String key) {
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331
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- RandomAccessFile RAFile = null;
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332
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- boolean removeFile = false;
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333
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- try {
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334
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- File file = mCache.get(key);
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335
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- if (!file.exists())
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336
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- return null;
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337
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- RAFile = new RandomAccessFile(file, "r");
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338
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- byte[] byteArray = new byte[(int) RAFile.length()];
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339
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- RAFile.read(byteArray);
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340
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- if (!Utils.isDue(byteArray)) {
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341
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- return Utils.clearDateInfo(byteArray);
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342
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- } else {
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343
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- removeFile = true;
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344
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- return null;
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345
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- }
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346
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- } catch (Exception e) {
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347
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- e.printStackTrace();
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348
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- return null;
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349
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- } finally {
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350
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- if (RAFile != null) {
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351
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- try {
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352
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- RAFile.close();
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353
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- } catch (IOException e) {
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354
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- e.printStackTrace();
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355
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- }
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356
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- }
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357
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- if (removeFile)
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358
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- remove(key);
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359
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- }
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360
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- }
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361
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-
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362
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- // =======================================
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363
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- // ============= 序列化 数据 读写 ===============
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364
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- // =======================================
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365
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- /**
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366
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- * 保存 Serializable数据 到 缓存中
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367
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- *
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368
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- * @param key
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369
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- * 保存的key
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370
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- * @param value
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371
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- * 保存的value
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372
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- */
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373
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- public void put(String key, Serializable value) {
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374
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- put(key, value, -1);
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375
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- }
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376
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-
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377
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- /**
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378
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- * 保存 Serializable数据到 缓存中
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379
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- *
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380
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- * @param key
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381
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- * 保存的key
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382
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- * @param value
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383
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- * 保存的value
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|
384
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- * @param saveTime
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|
385
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- * 保存的时间,单位:秒
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|
386
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- */
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|
387
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- public void put(String key, Serializable value, int saveTime) {
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|
388
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- ByteArrayOutputStream baos = null;
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|
389
|
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- ObjectOutputStream oos = null;
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|
390
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- try {
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|
391
|
|
- baos = new ByteArrayOutputStream();
|
|
392
|
|
- oos = new ObjectOutputStream(baos);
|
|
393
|
|
- oos.writeObject(value);
|
|
394
|
|
- byte[] data = baos.toByteArray();
|
|
395
|
|
- if (saveTime != -1) {
|
|
396
|
|
- put(key, data, saveTime);
|
|
397
|
|
- } else {
|
|
398
|
|
- put(key, data);
|
|
399
|
|
- }
|
|
400
|
|
- } catch (Exception e) {
|
|
401
|
|
- e.printStackTrace();
|
|
402
|
|
- } finally {
|
|
403
|
|
- try {
|
|
404
|
|
- oos.close();
|
|
405
|
|
- } catch (IOException e) {
|
|
406
|
|
- }
|
|
407
|
|
- }
|
|
408
|
|
- }
|
|
409
|
|
-
|
|
410
|
|
- /**
|
|
411
|
|
- * 读取 Serializable数据
|
|
412
|
|
- *
|
|
413
|
|
- * @param key
|
|
414
|
|
- * @return Serializable 数据
|
|
415
|
|
- */
|
|
416
|
|
- public Object getAsObject(String key) {
|
|
417
|
|
- byte[] data = getAsBinary(key);
|
|
418
|
|
- if (data != null) {
|
|
419
|
|
- ByteArrayInputStream bais = null;
|
|
420
|
|
- ObjectInputStream ois = null;
|
|
421
|
|
- try {
|
|
422
|
|
- bais = new ByteArrayInputStream(data);
|
|
423
|
|
- ois = new ObjectInputStream(bais);
|
|
424
|
|
- Object reObject = ois.readObject();
|
|
425
|
|
- return reObject;
|
|
426
|
|
- } catch (Exception e) {
|
|
427
|
|
- e.printStackTrace();
|
|
428
|
|
- return null;
|
|
429
|
|
- } finally {
|
|
430
|
|
- try {
|
|
431
|
|
- if (bais != null)
|
|
432
|
|
- bais.close();
|
|
433
|
|
- } catch (IOException e) {
|
|
434
|
|
- e.printStackTrace();
|
|
435
|
|
- }
|
|
436
|
|
- try {
|
|
437
|
|
- if (ois != null)
|
|
438
|
|
- ois.close();
|
|
439
|
|
- } catch (IOException e) {
|
|
440
|
|
- e.printStackTrace();
|
|
441
|
|
- }
|
|
442
|
|
- }
|
|
443
|
|
- }
|
|
444
|
|
- return null;
|
|
445
|
|
-
|
|
446
|
|
- }
|
|
447
|
|
-
|
|
448
|
|
- // =======================================
|
|
449
|
|
- // ============== bitmap 数据 读写 =============
|
|
450
|
|
- // =======================================
|
|
451
|
|
- /**
|
|
452
|
|
- * 保存 bitmap 到 缓存中
|
|
453
|
|
- *
|
|
454
|
|
- * @param key
|
|
455
|
|
- * 保存的key
|
|
456
|
|
- * @param value
|
|
457
|
|
- * 保存的bitmap数据
|
|
458
|
|
- */
|
|
459
|
|
- public void put(String key, Bitmap value) {
|
|
460
|
|
- put(key, Utils.Bitmap2Bytes(value));
|
|
461
|
|
- }
|
|
462
|
|
-
|
|
463
|
|
- /**
|
|
464
|
|
- * 保存 bitmap 到 缓存中
|
|
465
|
|
- *
|
|
466
|
|
- * @param key
|
|
467
|
|
- * 保存的key
|
|
468
|
|
- * @param value
|
|
469
|
|
- * 保存的 bitmap 数据
|
|
470
|
|
- * @param saveTime
|
|
471
|
|
- * 保存的时间,单位:秒
|
|
472
|
|
- */
|
|
473
|
|
- public void put(String key, Bitmap value, int saveTime) {
|
|
474
|
|
- put(key, Utils.Bitmap2Bytes(value), saveTime);
|
|
475
|
|
- }
|
|
476
|
|
-
|
|
477
|
|
- /**
|
|
478
|
|
- * 读取 bitmap 数据
|
|
479
|
|
- *
|
|
480
|
|
- * @param key
|
|
481
|
|
- * @return bitmap 数据
|
|
482
|
|
- */
|
|
483
|
|
- public Bitmap getAsBitmap(String key) {
|
|
484
|
|
- if (getAsBinary(key) == null) {
|
|
485
|
|
- return null;
|
|
486
|
|
- }
|
|
487
|
|
- return Utils.Bytes2Bimap(getAsBinary(key));
|
|
488
|
|
- }
|
|
489
|
|
-
|
|
490
|
|
- // =======================================
|
|
491
|
|
- // ============= drawable 数据 读写 =============
|
|
492
|
|
- // =======================================
|
|
493
|
|
- /**
|
|
494
|
|
- * 保存 drawable 到 缓存中
|
|
495
|
|
- *
|
|
496
|
|
- * @param key
|
|
497
|
|
- * 保存的key
|
|
498
|
|
- * @param value
|
|
499
|
|
- * 保存的drawable数据
|
|
500
|
|
- */
|
|
501
|
|
- public void put(String key, Drawable value) {
|
|
502
|
|
- put(key, Utils.drawable2Bitmap(value));
|
|
503
|
|
- }
|
|
504
|
|
-
|
|
505
|
|
- /**
|
|
506
|
|
- * 保存 drawable 到 缓存中
|
|
507
|
|
- *
|
|
508
|
|
- * @param key
|
|
509
|
|
- * 保存的key
|
|
510
|
|
- * @param value
|
|
511
|
|
- * 保存的 drawable 数据
|
|
512
|
|
- * @param saveTime
|
|
513
|
|
- * 保存的时间,单位:秒
|
|
514
|
|
- */
|
|
515
|
|
- public void put(String key, Drawable value, int saveTime) {
|
|
516
|
|
- put(key, Utils.drawable2Bitmap(value), saveTime);
|
|
517
|
|
- }
|
|
518
|
|
-
|
|
519
|
|
- /**
|
|
520
|
|
- * 读取 Drawable 数据
|
|
521
|
|
- *
|
|
522
|
|
- * @param key
|
|
523
|
|
- * @return Drawable 数据
|
|
524
|
|
- */
|
|
525
|
|
- public Drawable getAsDrawable(String key) {
|
|
526
|
|
- if (getAsBinary(key) == null) {
|
|
527
|
|
- return null;
|
|
528
|
|
- }
|
|
529
|
|
- return Utils.bitmap2Drawable(Utils.Bytes2Bimap(getAsBinary(key)));
|
|
530
|
|
- }
|
|
531
|
|
-
|
|
532
|
|
- /**
|
|
533
|
|
- * 获取缓存文件
|
|
534
|
|
- *
|
|
535
|
|
- * @param key
|
|
536
|
|
- * @return value 缓存的文件
|
|
537
|
|
- */
|
|
538
|
|
- public File file(String key) {
|
|
539
|
|
- File f = mCache.newFile(key);
|
|
540
|
|
- if (f.exists())
|
|
541
|
|
- return f;
|
|
542
|
|
- return null;
|
|
543
|
|
- }
|
|
544
|
|
-
|
|
545
|
|
- /**
|
|
546
|
|
- * 移除某个key
|
|
547
|
|
- *
|
|
548
|
|
- * @param key
|
|
549
|
|
- * @return 是否移除成功
|
|
550
|
|
- */
|
|
551
|
|
- public boolean remove(String key) {
|
|
552
|
|
- return mCache.remove(key);
|
|
553
|
|
- }
|
|
554
|
|
-
|
|
555
|
|
- /**
|
|
556
|
|
- * 清除所有数据
|
|
557
|
|
- */
|
|
558
|
|
- public void clear() {
|
|
559
|
|
- mCache.clear();
|
|
560
|
|
- }
|
|
561
|
|
-
|
|
562
|
|
- /**
|
|
563
|
|
- * @title 缓存管理器
|
|
564
|
|
- * @author 杨福海(michael) www.yangfuhai.com
|
|
565
|
|
- * @version 1.0
|
|
566
|
|
- */
|
|
567
|
|
- public class ACacheManager {
|
|
568
|
|
- private final AtomicLong cacheSize;
|
|
569
|
|
- private final AtomicInteger cacheCount;
|
|
570
|
|
- private final long sizeLimit;
|
|
571
|
|
- private final int countLimit;
|
|
572
|
|
- private final Map<File, Long> lastUsageDates = Collections
|
|
573
|
|
- .synchronizedMap(new HashMap<File, Long>());
|
|
574
|
|
- protected File cacheDir;
|
|
575
|
|
-
|
|
576
|
|
- private ACacheManager(File cacheDir, long sizeLimit, int countLimit) {
|
|
577
|
|
- this.cacheDir = cacheDir;
|
|
578
|
|
- this.sizeLimit = sizeLimit;
|
|
579
|
|
- this.countLimit = countLimit;
|
|
580
|
|
- cacheSize = new AtomicLong();
|
|
581
|
|
- cacheCount = new AtomicInteger();
|
|
582
|
|
- calculateCacheSizeAndCacheCount();
|
|
583
|
|
- }
|
|
584
|
|
-
|
|
585
|
|
- /**
|
|
586
|
|
- * 计算 cacheSize和cacheCount
|
|
587
|
|
- */
|
|
588
|
|
- private void calculateCacheSizeAndCacheCount() {
|
|
589
|
|
- new Thread(new Runnable() {
|
|
590
|
|
- @Override
|
|
591
|
|
- public void run() {
|
|
592
|
|
- int size = 0;
|
|
593
|
|
- int count = 0;
|
|
594
|
|
- File[] cachedFiles = cacheDir.listFiles();
|
|
595
|
|
- if (cachedFiles != null) {
|
|
596
|
|
- for (File cachedFile : cachedFiles) {
|
|
597
|
|
- size += calculateSize(cachedFile);
|
|
598
|
|
- count += 1;
|
|
599
|
|
- lastUsageDates.put(cachedFile,
|
|
600
|
|
- cachedFile.lastModified());
|
|
601
|
|
- }
|
|
602
|
|
- cacheSize.set(size);
|
|
603
|
|
- cacheCount.set(count);
|
|
604
|
|
- }
|
|
605
|
|
- }
|
|
606
|
|
- }).start();
|
|
607
|
|
- }
|
|
608
|
|
-
|
|
609
|
|
- private void put(File file) {
|
|
610
|
|
- int curCacheCount = cacheCount.get();
|
|
611
|
|
- while (curCacheCount + 1 > countLimit) {
|
|
612
|
|
- long freedSize = removeNext();
|
|
613
|
|
- cacheSize.addAndGet(-freedSize);
|
|
614
|
|
-
|
|
615
|
|
- curCacheCount = cacheCount.addAndGet(-1);
|
|
616
|
|
- }
|
|
617
|
|
- cacheCount.addAndGet(1);
|
|
618
|
|
-
|
|
619
|
|
- long valueSize = calculateSize(file);
|
|
620
|
|
- long curCacheSize = cacheSize.get();
|
|
621
|
|
- while (curCacheSize + valueSize > sizeLimit) {
|
|
622
|
|
- long freedSize = removeNext();
|
|
623
|
|
- curCacheSize = cacheSize.addAndGet(-freedSize);
|
|
624
|
|
- }
|
|
625
|
|
- cacheSize.addAndGet(valueSize);
|
|
626
|
|
-
|
|
627
|
|
- Long currentTime = System.currentTimeMillis();
|
|
628
|
|
- file.setLastModified(currentTime);
|
|
629
|
|
- lastUsageDates.put(file, currentTime);
|
|
630
|
|
- }
|
|
631
|
|
-
|
|
632
|
|
- private File get(String key) {
|
|
633
|
|
- File file = newFile(key);
|
|
634
|
|
- Long currentTime = System.currentTimeMillis();
|
|
635
|
|
- file.setLastModified(currentTime);
|
|
636
|
|
- lastUsageDates.put(file, currentTime);
|
|
637
|
|
-
|
|
638
|
|
- return file;
|
|
639
|
|
- }
|
|
640
|
|
-
|
|
641
|
|
- private File newFile(String key) {
|
|
642
|
|
- return new File(cacheDir, key.hashCode() + "");
|
|
643
|
|
- }
|
|
644
|
|
-
|
|
645
|
|
- private boolean remove(String key) {
|
|
646
|
|
- File image = get(key);
|
|
647
|
|
- return image.delete();
|
|
648
|
|
- }
|
|
649
|
|
-
|
|
650
|
|
- private void clear() {
|
|
651
|
|
- lastUsageDates.clear();
|
|
652
|
|
- cacheSize.set(0);
|
|
653
|
|
- File[] files = cacheDir.listFiles();
|
|
654
|
|
- if (files != null) {
|
|
655
|
|
- for (File f : files) {
|
|
656
|
|
- f.delete();
|
|
657
|
|
- }
|
|
658
|
|
- }
|
|
659
|
|
- }
|
|
660
|
|
-
|
|
661
|
|
- /**
|
|
662
|
|
- * 移除旧的文件
|
|
663
|
|
- *
|
|
664
|
|
- * @return
|
|
665
|
|
- */
|
|
666
|
|
- private long removeNext() {
|
|
667
|
|
- if (lastUsageDates.isEmpty()) {
|
|
668
|
|
- return 0;
|
|
669
|
|
- }
|
|
670
|
|
-
|
|
671
|
|
- Long oldestUsage = null;
|
|
672
|
|
- File mostLongUsedFile = null;
|
|
673
|
|
- Set<Entry<File, Long>> entries = lastUsageDates.entrySet();
|
|
674
|
|
- synchronized (lastUsageDates) {
|
|
675
|
|
- for (Entry<File, Long> entry : entries) {
|
|
676
|
|
- if (mostLongUsedFile == null) {
|
|
677
|
|
- mostLongUsedFile = entry.getKey();
|
|
678
|
|
- oldestUsage = entry.getValue();
|
|
679
|
|
- } else {
|
|
680
|
|
- Long lastValueUsage = entry.getValue();
|
|
681
|
|
- if (lastValueUsage < oldestUsage) {
|
|
682
|
|
- oldestUsage = lastValueUsage;
|
|
683
|
|
- mostLongUsedFile = entry.getKey();
|
|
684
|
|
- }
|
|
685
|
|
- }
|
|
686
|
|
- }
|
|
687
|
|
- }
|
|
688
|
|
-
|
|
689
|
|
- long fileSize = calculateSize(mostLongUsedFile);
|
|
690
|
|
- if (mostLongUsedFile.delete()) {
|
|
691
|
|
- lastUsageDates.remove(mostLongUsedFile);
|
|
692
|
|
- }
|
|
693
|
|
- return fileSize;
|
|
694
|
|
- }
|
|
695
|
|
-
|
|
696
|
|
- private long calculateSize(File file) {
|
|
697
|
|
- return file.length();
|
|
698
|
|
- }
|
|
699
|
|
- }
|
|
700
|
|
-
|
|
701
|
|
- /**
|
|
702
|
|
- * @title 时间计算工具类
|
|
703
|
|
- * @author 杨福海(michael) www.yangfuhai.com
|
|
704
|
|
- * @version 1.0
|
|
705
|
|
- */
|
|
706
|
|
- private static class Utils {
|
|
707
|
|
-
|
|
708
|
|
- /**
|
|
709
|
|
- * 判断缓存的String数据是否到期
|
|
710
|
|
- *
|
|
711
|
|
- * @param str
|
|
712
|
|
- * @return true:到期了 false:还没有到期
|
|
713
|
|
- */
|
|
714
|
|
- private static boolean isDue(String str) {
|
|
715
|
|
- return isDue(str.getBytes());
|
|
716
|
|
- }
|
|
717
|
|
-
|
|
718
|
|
- /**
|
|
719
|
|
- * 判断缓存的byte数据是否到期
|
|
720
|
|
- *
|
|
721
|
|
- * @param data
|
|
722
|
|
- * @return true:到期了 false:还没有到期
|
|
723
|
|
- */
|
|
724
|
|
- private static boolean isDue(byte[] data) {
|
|
725
|
|
- String[] strs = getDateInfoFromDate(data);
|
|
726
|
|
- if (strs != null && strs.length == 2) {
|
|
727
|
|
- String saveTimeStr = strs[0];
|
|
728
|
|
- while (saveTimeStr.startsWith("0")) {
|
|
729
|
|
- saveTimeStr = saveTimeStr
|
|
730
|
|
- .substring(1, saveTimeStr.length());
|
|
731
|
|
- }
|
|
732
|
|
- long saveTime = Long.valueOf(saveTimeStr);
|
|
733
|
|
- long deleteAfter = Long.valueOf(strs[1]);
|
|
734
|
|
- if (System.currentTimeMillis() > saveTime + deleteAfter * 1000) {
|
|
735
|
|
- return true;
|
|
736
|
|
- }
|
|
737
|
|
- }
|
|
738
|
|
- return false;
|
|
739
|
|
- }
|
|
740
|
|
-
|
|
741
|
|
- private static String newStringWithDateInfo(int second, String strInfo) {
|
|
742
|
|
- return createDateInfo(second) + strInfo;
|
|
743
|
|
- }
|
|
744
|
|
-
|
|
745
|
|
- private static byte[] newByteArrayWithDateInfo(int second, byte[] data2) {
|
|
746
|
|
- byte[] data1 = createDateInfo(second).getBytes();
|
|
747
|
|
- byte[] retdata = new byte[data1.length + data2.length];
|
|
748
|
|
- System.arraycopy(data1, 0, retdata, 0, data1.length);
|
|
749
|
|
- System.arraycopy(data2, 0, retdata, data1.length, data2.length);
|
|
750
|
|
- return retdata;
|
|
751
|
|
- }
|
|
752
|
|
-
|
|
753
|
|
- private static String clearDateInfo(String strInfo) {
|
|
754
|
|
- if (strInfo != null && hasDateInfo(strInfo.getBytes())) {
|
|
755
|
|
- strInfo = strInfo.substring(strInfo.indexOf(mSeparator) + 1,
|
|
756
|
|
- strInfo.length());
|
|
757
|
|
- }
|
|
758
|
|
- return strInfo;
|
|
759
|
|
- }
|
|
760
|
|
-
|
|
761
|
|
- private static byte[] clearDateInfo(byte[] data) {
|
|
762
|
|
- if (hasDateInfo(data)) {
|
|
763
|
|
- return copyOfRange(data, indexOf(data, mSeparator) + 1,
|
|
764
|
|
- data.length);
|
|
765
|
|
- }
|
|
766
|
|
- return data;
|
|
767
|
|
- }
|
|
768
|
|
-
|
|
769
|
|
- private static boolean hasDateInfo(byte[] data) {
|
|
770
|
|
- return data != null && data.length > 15 && data[13] == '-'
|
|
771
|
|
- && indexOf(data, mSeparator) > 14;
|
|
772
|
|
- }
|
|
773
|
|
-
|
|
774
|
|
- private static String[] getDateInfoFromDate(byte[] data) {
|
|
775
|
|
- if (hasDateInfo(data)) {
|
|
776
|
|
- String saveDate = new String(copyOfRange(data, 0, 13));
|
|
777
|
|
- String deleteAfter = new String(copyOfRange(data, 14,
|
|
778
|
|
- indexOf(data, mSeparator)));
|
|
779
|
|
- return new String[] { saveDate, deleteAfter };
|
|
780
|
|
- }
|
|
781
|
|
- return null;
|
|
782
|
|
- }
|
|
783
|
|
-
|
|
784
|
|
- private static int indexOf(byte[] data, char c) {
|
|
785
|
|
- for (int i = 0; i < data.length; i++) {
|
|
786
|
|
- if (data[i] == c) {
|
|
787
|
|
- return i;
|
|
788
|
|
- }
|
|
789
|
|
- }
|
|
790
|
|
- return -1;
|
|
791
|
|
- }
|
|
792
|
|
-
|
|
793
|
|
- private static byte[] copyOfRange(byte[] original, int from, int to) {
|
|
794
|
|
- int newLength = to - from;
|
|
795
|
|
- if (newLength < 0)
|
|
796
|
|
- throw new IllegalArgumentException(from + " > " + to);
|
|
797
|
|
- byte[] copy = new byte[newLength];
|
|
798
|
|
- System.arraycopy(original, from, copy, 0,
|
|
799
|
|
- Math.min(original.length - from, newLength));
|
|
800
|
|
- return copy;
|
|
801
|
|
- }
|
|
802
|
|
-
|
|
803
|
|
- private static final char mSeparator = ' ';
|
|
804
|
|
-
|
|
805
|
|
- private static String createDateInfo(int second) {
|
|
806
|
|
- String currentTime = System.currentTimeMillis() + "";
|
|
807
|
|
- while (currentTime.length() < 13) {
|
|
808
|
|
- currentTime = "0" + currentTime;
|
|
809
|
|
- }
|
|
810
|
|
- return currentTime + "-" + second + mSeparator;
|
|
811
|
|
- }
|
|
812
|
|
-
|
|
813
|
|
- /*
|
|
814
|
|
- * Bitmap → byte[]
|
|
815
|
|
- */
|
|
816
|
|
- private static byte[] Bitmap2Bytes(Bitmap bm) {
|
|
817
|
|
- if (bm == null) {
|
|
818
|
|
- return null;
|
|
819
|
|
- }
|
|
820
|
|
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
|
821
|
|
- bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
|
|
822
|
|
- return baos.toByteArray();
|
|
823
|
|
- }
|
|
824
|
|
-
|
|
825
|
|
- /*
|
|
826
|
|
- * byte[] → Bitmap
|
|
827
|
|
- */
|
|
828
|
|
- private static Bitmap Bytes2Bimap(byte[] b) {
|
|
829
|
|
- if (b.length == 0) {
|
|
830
|
|
- return null;
|
|
831
|
|
- }
|
|
832
|
|
- return BitmapFactory.decodeByteArray(b, 0, b.length);
|
|
833
|
|
- }
|
|
834
|
|
-
|
|
835
|
|
- /*
|
|
836
|
|
- * Drawable → Bitmap
|
|
837
|
|
- */
|
|
838
|
|
- private static Bitmap drawable2Bitmap(Drawable drawable) {
|
|
839
|
|
- if (drawable == null) {
|
|
840
|
|
- return null;
|
|
841
|
|
- }
|
|
842
|
|
- // 取 drawable 的长宽
|
|
843
|
|
- int w = drawable.getIntrinsicWidth();
|
|
844
|
|
- int h = drawable.getIntrinsicHeight();
|
|
845
|
|
- // 取 drawable 的颜色格式
|
|
846
|
|
- Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
|
|
847
|
|
- : Bitmap.Config.RGB_565;
|
|
848
|
|
- // 建立对应 bitmap
|
|
849
|
|
- Bitmap bitmap = Bitmap.createBitmap(w, h, config);
|
|
850
|
|
- // 建立对应 bitmap 的画布
|
|
851
|
|
- Canvas canvas = new Canvas(bitmap);
|
|
852
|
|
- drawable.setBounds(0, 0, w, h);
|
|
853
|
|
- // 把 drawable 内容画到画布中
|
|
854
|
|
- drawable.draw(canvas);
|
|
855
|
|
- return bitmap;
|
|
856
|
|
- }
|
|
857
|
|
-
|
|
858
|
|
- /*
|
|
859
|
|
- * Bitmap → Drawable
|
|
860
|
|
- */
|
|
861
|
|
- @SuppressWarnings("deprecation")
|
|
862
|
|
- private static Drawable bitmap2Drawable(Bitmap bm) {
|
|
863
|
|
- if (bm == null) {
|
|
864
|
|
- return null;
|
|
865
|
|
- }
|
|
866
|
|
- return new BitmapDrawable(bm);
|
|
867
|
|
- }
|
|
868
|
|
- }
|
|
|
53
|
+ public static final int TIME_HOUR = 60 * 60;
|
|
|
54
|
+ public static final int TIME_DAY = TIME_HOUR * 24;
|
|
|
55
|
+ private static final int MAX_SIZE = 1000 * 1000 * 50; // 50 mb
|
|
|
56
|
+ private static final int MAX_COUNT = Integer.MAX_VALUE; // 不限制存放数据的数量
|
|
|
57
|
+ private static Map<String, ACache> mInstanceMap = new HashMap<String, ACache>();
|
|
|
58
|
+ private ACacheManager mCache;
|
|
|
59
|
+
|
|
|
60
|
+ public static ACache get(Context ctx) {
|
|
|
61
|
+ return get(ctx, "ACache");
|
|
|
62
|
+ }
|
|
|
63
|
+
|
|
|
64
|
+ public static ACache get(Context ctx, String cacheName) {
|
|
|
65
|
+ File f = new File(ctx.getCacheDir(), cacheName);
|
|
|
66
|
+ return get(f, MAX_SIZE, MAX_COUNT);
|
|
|
67
|
+ }
|
|
|
68
|
+
|
|
|
69
|
+ public static ACache get(File cacheDir) {
|
|
|
70
|
+ return get(cacheDir, MAX_SIZE, MAX_COUNT);
|
|
|
71
|
+ }
|
|
|
72
|
+
|
|
|
73
|
+ public static ACache get(Context ctx, long max_zise, int max_count) {
|
|
|
74
|
+ File f = new File(ctx.getCacheDir(), "ACache");
|
|
|
75
|
+ return get(f, max_zise, max_count);
|
|
|
76
|
+ }
|
|
|
77
|
+
|
|
|
78
|
+ public static ACache get(File cacheDir, long max_zise, int max_count) {
|
|
|
79
|
+ ACache manager = mInstanceMap.get(cacheDir.getAbsoluteFile() + myPid());
|
|
|
80
|
+ if (manager == null) {
|
|
|
81
|
+ manager = new ACache(cacheDir, max_zise, max_count);
|
|
|
82
|
+ mInstanceMap.put(cacheDir.getAbsolutePath() + myPid(), manager);
|
|
|
83
|
+ }
|
|
|
84
|
+ return manager;
|
|
|
85
|
+ }
|
|
|
86
|
+
|
|
|
87
|
+ private static String myPid() {
|
|
|
88
|
+ return "_" + android.os.Process.myPid();
|
|
|
89
|
+ }
|
|
|
90
|
+
|
|
|
91
|
+ private ACache(File cacheDir, long max_size, int max_count) {
|
|
|
92
|
+ if (!cacheDir.exists() && !cacheDir.mkdirs()) {
|
|
|
93
|
+ throw new RuntimeException("can't make dirs in "
|
|
|
94
|
+ + cacheDir.getAbsolutePath());
|
|
|
95
|
+ }
|
|
|
96
|
+ mCache = new ACacheManager(cacheDir, max_size, max_count);
|
|
|
97
|
+ }
|
|
|
98
|
+
|
|
|
99
|
+ // =======================================
|
|
|
100
|
+ // ============ String数据 读写 ==============
|
|
|
101
|
+ // =======================================
|
|
|
102
|
+
|
|
|
103
|
+ /**
|
|
|
104
|
+ * 保存 String数据 到 缓存中
|
|
|
105
|
+ *
|
|
|
106
|
+ * @param key 保存的key
|
|
|
107
|
+ * @param value 保存的String数据
|
|
|
108
|
+ */
|
|
|
109
|
+ public void put(String key, String value) {
|
|
|
110
|
+ File file = mCache.newFile(key);
|
|
|
111
|
+ BufferedWriter out = null;
|
|
|
112
|
+ try {
|
|
|
113
|
+ out = new BufferedWriter(new FileWriter(file), 1024);
|
|
|
114
|
+ out.write(value);
|
|
|
115
|
+ } catch (IOException e) {
|
|
|
116
|
+ e.printStackTrace();
|
|
|
117
|
+ } finally {
|
|
|
118
|
+ if (out != null) {
|
|
|
119
|
+ try {
|
|
|
120
|
+ out.flush();
|
|
|
121
|
+ out.close();
|
|
|
122
|
+ } catch (IOException e) {
|
|
|
123
|
+ e.printStackTrace();
|
|
|
124
|
+ }
|
|
|
125
|
+ }
|
|
|
126
|
+ mCache.put(file);
|
|
|
127
|
+ }
|
|
|
128
|
+ }
|
|
|
129
|
+
|
|
|
130
|
+ /**
|
|
|
131
|
+ * 保存 String数据 到 缓存中
|
|
|
132
|
+ *
|
|
|
133
|
+ * @param key 保存的key
|
|
|
134
|
+ * @param value 保存的String数据
|
|
|
135
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
136
|
+ */
|
|
|
137
|
+ public void put(String key, String value, int saveTime) {
|
|
|
138
|
+ put(key, Utils.newStringWithDateInfo(saveTime, value));
|
|
|
139
|
+ }
|
|
|
140
|
+
|
|
|
141
|
+ /**
|
|
|
142
|
+ * 读取 String数据
|
|
|
143
|
+ *
|
|
|
144
|
+ * @param key
|
|
|
145
|
+ * @return String 数据
|
|
|
146
|
+ */
|
|
|
147
|
+ public String getAsString(String key) {
|
|
|
148
|
+ File file = mCache.get(key);
|
|
|
149
|
+ if (!file.exists())
|
|
|
150
|
+ return null;
|
|
|
151
|
+ boolean removeFile = false;
|
|
|
152
|
+ BufferedReader in = null;
|
|
|
153
|
+ try {
|
|
|
154
|
+ in = new BufferedReader(new FileReader(file));
|
|
|
155
|
+ String readString = "";
|
|
|
156
|
+ String currentLine;
|
|
|
157
|
+ while ((currentLine = in.readLine()) != null) {
|
|
|
158
|
+ readString += currentLine;
|
|
|
159
|
+ }
|
|
|
160
|
+ if (!Utils.isDue(readString)) {
|
|
|
161
|
+ return Utils.clearDateInfo(readString);
|
|
|
162
|
+ } else {
|
|
|
163
|
+ removeFile = true;
|
|
|
164
|
+ return null;
|
|
|
165
|
+ }
|
|
|
166
|
+ } catch (IOException e) {
|
|
|
167
|
+ e.printStackTrace();
|
|
|
168
|
+ return null;
|
|
|
169
|
+ } finally {
|
|
|
170
|
+ if (in != null) {
|
|
|
171
|
+ try {
|
|
|
172
|
+ in.close();
|
|
|
173
|
+ } catch (IOException e) {
|
|
|
174
|
+ e.printStackTrace();
|
|
|
175
|
+ }
|
|
|
176
|
+ }
|
|
|
177
|
+ if (removeFile)
|
|
|
178
|
+ remove(key);
|
|
|
179
|
+ }
|
|
|
180
|
+ }
|
|
|
181
|
+
|
|
|
182
|
+ // =======================================
|
|
|
183
|
+ // ============= JSONObject 数据 读写 ==============
|
|
|
184
|
+ // =======================================
|
|
|
185
|
+
|
|
|
186
|
+ /**
|
|
|
187
|
+ * 保存 JSONObject数据 到 缓存中
|
|
|
188
|
+ *
|
|
|
189
|
+ * @param key 保存的key
|
|
|
190
|
+ * @param value 保存的JSON数据
|
|
|
191
|
+ */
|
|
|
192
|
+ public void put(String key, JSONObject value) {
|
|
|
193
|
+ put(key, value.toString());
|
|
|
194
|
+ }
|
|
|
195
|
+
|
|
|
196
|
+ /**
|
|
|
197
|
+ * 保存 JSONObject数据 到 缓存中
|
|
|
198
|
+ *
|
|
|
199
|
+ * @param key 保存的key
|
|
|
200
|
+ * @param value 保存的JSONObject数据
|
|
|
201
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
202
|
+ */
|
|
|
203
|
+ public void put(String key, JSONObject value, int saveTime) {
|
|
|
204
|
+ put(key, value.toString(), saveTime);
|
|
|
205
|
+ }
|
|
|
206
|
+
|
|
|
207
|
+ /**
|
|
|
208
|
+ * 读取JSONObject数据
|
|
|
209
|
+ *
|
|
|
210
|
+ * @param key
|
|
|
211
|
+ * @return JSONObject数据
|
|
|
212
|
+ */
|
|
|
213
|
+ public JSONObject getAsJSONObject(String key) {
|
|
|
214
|
+ String JSONString = getAsString(key);
|
|
|
215
|
+ try {
|
|
|
216
|
+ JSONObject obj = new JSONObject(JSONString);
|
|
|
217
|
+ return obj;
|
|
|
218
|
+ } catch (Exception e) {
|
|
|
219
|
+ e.printStackTrace();
|
|
|
220
|
+ return null;
|
|
|
221
|
+ }
|
|
|
222
|
+ }
|
|
|
223
|
+
|
|
|
224
|
+ // =======================================
|
|
|
225
|
+ // ============ JSONArray 数据 读写 =============
|
|
|
226
|
+ // =======================================
|
|
|
227
|
+
|
|
|
228
|
+ /**
|
|
|
229
|
+ * 保存 JSONArray数据 到 缓存中
|
|
|
230
|
+ *
|
|
|
231
|
+ * @param key 保存的key
|
|
|
232
|
+ * @param value 保存的JSONArray数据
|
|
|
233
|
+ */
|
|
|
234
|
+ public void put(String key, JSONArray value) {
|
|
|
235
|
+ put(key, value.toString());
|
|
|
236
|
+ }
|
|
|
237
|
+
|
|
|
238
|
+ /**
|
|
|
239
|
+ * 保存 JSONArray数据 到 缓存中
|
|
|
240
|
+ *
|
|
|
241
|
+ * @param key 保存的key
|
|
|
242
|
+ * @param value 保存的JSONArray数据
|
|
|
243
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
244
|
+ */
|
|
|
245
|
+ public void put(String key, JSONArray value, int saveTime) {
|
|
|
246
|
+ put(key, value.toString(), saveTime);
|
|
|
247
|
+ }
|
|
|
248
|
+
|
|
|
249
|
+ /**
|
|
|
250
|
+ * 读取JSONArray数据
|
|
|
251
|
+ *
|
|
|
252
|
+ * @param key
|
|
|
253
|
+ * @return JSONArray数据
|
|
|
254
|
+ */
|
|
|
255
|
+ public JSONArray getAsJSONArray(String key) {
|
|
|
256
|
+ String JSONString = getAsString(key);
|
|
|
257
|
+ try {
|
|
|
258
|
+ JSONArray obj = new JSONArray(JSONString);
|
|
|
259
|
+ return obj;
|
|
|
260
|
+ } catch (Exception e) {
|
|
|
261
|
+ e.printStackTrace();
|
|
|
262
|
+ return null;
|
|
|
263
|
+ }
|
|
|
264
|
+ }
|
|
|
265
|
+
|
|
|
266
|
+ // =======================================
|
|
|
267
|
+ // ============== byte 数据 读写 =============
|
|
|
268
|
+ // =======================================
|
|
|
269
|
+
|
|
|
270
|
+ /**
|
|
|
271
|
+ * 保存 byte数据 到 缓存中
|
|
|
272
|
+ *
|
|
|
273
|
+ * @param key 保存的key
|
|
|
274
|
+ * @param value 保存的数据
|
|
|
275
|
+ */
|
|
|
276
|
+ public void put(String key, byte[] value) {
|
|
|
277
|
+ File file = mCache.newFile(key);
|
|
|
278
|
+ FileOutputStream out = null;
|
|
|
279
|
+ try {
|
|
|
280
|
+ out = new FileOutputStream(file);
|
|
|
281
|
+ out.write(value);
|
|
|
282
|
+ } catch (Exception e) {
|
|
|
283
|
+ e.printStackTrace();
|
|
|
284
|
+ } finally {
|
|
|
285
|
+ if (out != null) {
|
|
|
286
|
+ try {
|
|
|
287
|
+ out.flush();
|
|
|
288
|
+ out.close();
|
|
|
289
|
+ } catch (IOException e) {
|
|
|
290
|
+ e.printStackTrace();
|
|
|
291
|
+ }
|
|
|
292
|
+ }
|
|
|
293
|
+ mCache.put(file);
|
|
|
294
|
+ }
|
|
|
295
|
+ }
|
|
|
296
|
+
|
|
|
297
|
+ /**
|
|
|
298
|
+ * 保存 byte数据 到 缓存中
|
|
|
299
|
+ *
|
|
|
300
|
+ * @param key 保存的key
|
|
|
301
|
+ * @param value 保存的数据
|
|
|
302
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
303
|
+ */
|
|
|
304
|
+ public void put(String key, byte[] value, int saveTime) {
|
|
|
305
|
+ put(key, Utils.newByteArrayWithDateInfo(saveTime, value));
|
|
|
306
|
+ }
|
|
|
307
|
+
|
|
|
308
|
+ /**
|
|
|
309
|
+ * 获取 byte 数据
|
|
|
310
|
+ *
|
|
|
311
|
+ * @param key
|
|
|
312
|
+ * @return byte 数据
|
|
|
313
|
+ */
|
|
|
314
|
+ public byte[] getAsBinary(String key) {
|
|
|
315
|
+ RandomAccessFile RAFile = null;
|
|
|
316
|
+ boolean removeFile = false;
|
|
|
317
|
+ try {
|
|
|
318
|
+ File file = mCache.get(key);
|
|
|
319
|
+ if (!file.exists())
|
|
|
320
|
+ return null;
|
|
|
321
|
+ RAFile = new RandomAccessFile(file, "r");
|
|
|
322
|
+ byte[] byteArray = new byte[(int) RAFile.length()];
|
|
|
323
|
+ RAFile.read(byteArray);
|
|
|
324
|
+ if (!Utils.isDue(byteArray)) {
|
|
|
325
|
+ return Utils.clearDateInfo(byteArray);
|
|
|
326
|
+ } else {
|
|
|
327
|
+ removeFile = true;
|
|
|
328
|
+ return null;
|
|
|
329
|
+ }
|
|
|
330
|
+ } catch (Exception e) {
|
|
|
331
|
+ e.printStackTrace();
|
|
|
332
|
+ return null;
|
|
|
333
|
+ } finally {
|
|
|
334
|
+ if (RAFile != null) {
|
|
|
335
|
+ try {
|
|
|
336
|
+ RAFile.close();
|
|
|
337
|
+ } catch (IOException e) {
|
|
|
338
|
+ e.printStackTrace();
|
|
|
339
|
+ }
|
|
|
340
|
+ }
|
|
|
341
|
+ if (removeFile)
|
|
|
342
|
+ remove(key);
|
|
|
343
|
+ }
|
|
|
344
|
+ }
|
|
|
345
|
+
|
|
|
346
|
+ // =======================================
|
|
|
347
|
+ // ============= 序列化 数据 读写 ===============
|
|
|
348
|
+ // =======================================
|
|
|
349
|
+
|
|
|
350
|
+ /**
|
|
|
351
|
+ * 保存 Serializable数据 到 缓存中
|
|
|
352
|
+ *
|
|
|
353
|
+ * @param key 保存的key
|
|
|
354
|
+ * @param value 保存的value
|
|
|
355
|
+ */
|
|
|
356
|
+ public void put(String key, Serializable value) {
|
|
|
357
|
+ put(key, value, -1);
|
|
|
358
|
+ }
|
|
|
359
|
+
|
|
|
360
|
+ /**
|
|
|
361
|
+ * 保存 Serializable数据到 缓存中
|
|
|
362
|
+ *
|
|
|
363
|
+ * @param key 保存的key
|
|
|
364
|
+ * @param value 保存的value
|
|
|
365
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
366
|
+ */
|
|
|
367
|
+ public void put(String key, Serializable value, int saveTime) {
|
|
|
368
|
+ ByteArrayOutputStream baos = null;
|
|
|
369
|
+ ObjectOutputStream oos = null;
|
|
|
370
|
+ try {
|
|
|
371
|
+ baos = new ByteArrayOutputStream();
|
|
|
372
|
+ oos = new ObjectOutputStream(baos);
|
|
|
373
|
+ oos.writeObject(value);
|
|
|
374
|
+ byte[] data = baos.toByteArray();
|
|
|
375
|
+ if (saveTime != -1) {
|
|
|
376
|
+ put(key, data, saveTime);
|
|
|
377
|
+ } else {
|
|
|
378
|
+ put(key, data);
|
|
|
379
|
+ }
|
|
|
380
|
+ } catch (Exception e) {
|
|
|
381
|
+ e.printStackTrace();
|
|
|
382
|
+ } finally {
|
|
|
383
|
+ try {
|
|
|
384
|
+ oos.close();
|
|
|
385
|
+ } catch (IOException e) {
|
|
|
386
|
+ }
|
|
|
387
|
+ }
|
|
|
388
|
+ }
|
|
|
389
|
+
|
|
|
390
|
+ /**
|
|
|
391
|
+ * 读取 Serializable数据
|
|
|
392
|
+ *
|
|
|
393
|
+ * @param key
|
|
|
394
|
+ * @return Serializable 数据
|
|
|
395
|
+ */
|
|
|
396
|
+ public Object getAsObject(String key) {
|
|
|
397
|
+ byte[] data = getAsBinary(key);
|
|
|
398
|
+ if (data != null) {
|
|
|
399
|
+ ByteArrayInputStream bais = null;
|
|
|
400
|
+ ObjectInputStream ois = null;
|
|
|
401
|
+ try {
|
|
|
402
|
+ bais = new ByteArrayInputStream(data);
|
|
|
403
|
+ ois = new ObjectInputStream(bais);
|
|
|
404
|
+ Object reObject = ois.readObject();
|
|
|
405
|
+ return reObject;
|
|
|
406
|
+ } catch (Exception e) {
|
|
|
407
|
+ e.printStackTrace();
|
|
|
408
|
+ return null;
|
|
|
409
|
+ } finally {
|
|
|
410
|
+ try {
|
|
|
411
|
+ if (bais != null)
|
|
|
412
|
+ bais.close();
|
|
|
413
|
+ } catch (IOException e) {
|
|
|
414
|
+ e.printStackTrace();
|
|
|
415
|
+ }
|
|
|
416
|
+ try {
|
|
|
417
|
+ if (ois != null)
|
|
|
418
|
+ ois.close();
|
|
|
419
|
+ } catch (IOException e) {
|
|
|
420
|
+ e.printStackTrace();
|
|
|
421
|
+ }
|
|
|
422
|
+ }
|
|
|
423
|
+ }
|
|
|
424
|
+ return null;
|
|
|
425
|
+
|
|
|
426
|
+ }
|
|
|
427
|
+
|
|
|
428
|
+ // =======================================
|
|
|
429
|
+ // ============== bitmap 数据 读写 =============
|
|
|
430
|
+ // =======================================
|
|
|
431
|
+
|
|
|
432
|
+ /**
|
|
|
433
|
+ * 保存 bitmap 到 缓存中
|
|
|
434
|
+ *
|
|
|
435
|
+ * @param key 保存的key
|
|
|
436
|
+ * @param value 保存的bitmap数据
|
|
|
437
|
+ */
|
|
|
438
|
+ public void put(String key, Bitmap value) {
|
|
|
439
|
+ put(key, Utils.Bitmap2Bytes(value));
|
|
|
440
|
+ }
|
|
|
441
|
+
|
|
|
442
|
+ /**
|
|
|
443
|
+ * 保存 bitmap 到 缓存中
|
|
|
444
|
+ *
|
|
|
445
|
+ * @param key 保存的key
|
|
|
446
|
+ * @param value 保存的 bitmap 数据
|
|
|
447
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
448
|
+ */
|
|
|
449
|
+ public void put(String key, Bitmap value, int saveTime) {
|
|
|
450
|
+ put(key, Utils.Bitmap2Bytes(value), saveTime);
|
|
|
451
|
+ }
|
|
|
452
|
+
|
|
|
453
|
+ /**
|
|
|
454
|
+ * 读取 bitmap 数据
|
|
|
455
|
+ *
|
|
|
456
|
+ * @param key
|
|
|
457
|
+ * @return bitmap 数据
|
|
|
458
|
+ */
|
|
|
459
|
+ public Bitmap getAsBitmap(String key) {
|
|
|
460
|
+ if (getAsBinary(key) == null) {
|
|
|
461
|
+ return null;
|
|
|
462
|
+ }
|
|
|
463
|
+ return Utils.Bytes2Bimap(getAsBinary(key));
|
|
|
464
|
+ }
|
|
|
465
|
+
|
|
|
466
|
+ // =======================================
|
|
|
467
|
+ // ============= drawable 数据 读写 =============
|
|
|
468
|
+ // =======================================
|
|
|
469
|
+
|
|
|
470
|
+ /**
|
|
|
471
|
+ * 保存 drawable 到 缓存中
|
|
|
472
|
+ *
|
|
|
473
|
+ * @param key 保存的key
|
|
|
474
|
+ * @param value 保存的drawable数据
|
|
|
475
|
+ */
|
|
|
476
|
+ public void put(String key, Drawable value) {
|
|
|
477
|
+ put(key, Utils.drawable2Bitmap(value));
|
|
|
478
|
+ }
|
|
|
479
|
+
|
|
|
480
|
+ /**
|
|
|
481
|
+ * 保存 drawable 到 缓存中
|
|
|
482
|
+ *
|
|
|
483
|
+ * @param key 保存的key
|
|
|
484
|
+ * @param value 保存的 drawable 数据
|
|
|
485
|
+ * @param saveTime 保存的时间,单位:秒
|
|
|
486
|
+ */
|
|
|
487
|
+ public void put(String key, Drawable value, int saveTime) {
|
|
|
488
|
+ put(key, Utils.drawable2Bitmap(value), saveTime);
|
|
|
489
|
+ }
|
|
|
490
|
+
|
|
|
491
|
+ /**
|
|
|
492
|
+ * 读取 Drawable 数据
|
|
|
493
|
+ *
|
|
|
494
|
+ * @param key
|
|
|
495
|
+ * @return Drawable 数据
|
|
|
496
|
+ */
|
|
|
497
|
+ public Drawable getAsDrawable(String key) {
|
|
|
498
|
+ if (getAsBinary(key) == null) {
|
|
|
499
|
+ return null;
|
|
|
500
|
+ }
|
|
|
501
|
+ return Utils.bitmap2Drawable(Utils.Bytes2Bimap(getAsBinary(key)));
|
|
|
502
|
+ }
|
|
|
503
|
+
|
|
|
504
|
+ /**
|
|
|
505
|
+ * 获取缓存文件
|
|
|
506
|
+ *
|
|
|
507
|
+ * @param key
|
|
|
508
|
+ * @return value 缓存的文件
|
|
|
509
|
+ */
|
|
|
510
|
+ public File file(String key) {
|
|
|
511
|
+ File f = mCache.newFile(key);
|
|
|
512
|
+ if (f.exists())
|
|
|
513
|
+ return f;
|
|
|
514
|
+ return null;
|
|
|
515
|
+ }
|
|
|
516
|
+
|
|
|
517
|
+ /**
|
|
|
518
|
+ * 移除某个key
|
|
|
519
|
+ *
|
|
|
520
|
+ * @param key
|
|
|
521
|
+ * @return 是否移除成功
|
|
|
522
|
+ */
|
|
|
523
|
+ public boolean remove(String key) {
|
|
|
524
|
+ return mCache.remove(key);
|
|
|
525
|
+ }
|
|
|
526
|
+
|
|
|
527
|
+ /**
|
|
|
528
|
+ * 清除所有数据
|
|
|
529
|
+ */
|
|
|
530
|
+ public void clear() {
|
|
|
531
|
+ mCache.clear();
|
|
|
532
|
+ }
|
|
|
533
|
+
|
|
|
534
|
+ /**
|
|
|
535
|
+ * @author 杨福海(michael) www.yangfuhai.com
|
|
|
536
|
+ * @version 1.0
|
|
|
537
|
+ * @title 缓存管理器
|
|
|
538
|
+ */
|
|
|
539
|
+ public class ACacheManager {
|
|
|
540
|
+ private final AtomicLong cacheSize;
|
|
|
541
|
+ private final AtomicInteger cacheCount;
|
|
|
542
|
+ private final long sizeLimit;
|
|
|
543
|
+ private final int countLimit;
|
|
|
544
|
+ private final Map<File, Long> lastUsageDates = Collections
|
|
|
545
|
+ .synchronizedMap(new HashMap<File, Long>());
|
|
|
546
|
+ protected File cacheDir;
|
|
|
547
|
+
|
|
|
548
|
+ private ACacheManager(File cacheDir, long sizeLimit, int countLimit) {
|
|
|
549
|
+ this.cacheDir = cacheDir;
|
|
|
550
|
+ this.sizeLimit = sizeLimit;
|
|
|
551
|
+ this.countLimit = countLimit;
|
|
|
552
|
+ cacheSize = new AtomicLong();
|
|
|
553
|
+ cacheCount = new AtomicInteger();
|
|
|
554
|
+ calculateCacheSizeAndCacheCount();
|
|
|
555
|
+ }
|
|
|
556
|
+
|
|
|
557
|
+ /**
|
|
|
558
|
+ * 计算 cacheSize和cacheCount
|
|
|
559
|
+ */
|
|
|
560
|
+ private void calculateCacheSizeAndCacheCount() {
|
|
|
561
|
+ new Thread(new Runnable() {
|
|
|
562
|
+ @Override
|
|
|
563
|
+ public void run() {
|
|
|
564
|
+ int size = 0;
|
|
|
565
|
+ int count = 0;
|
|
|
566
|
+ File[] cachedFiles = cacheDir.listFiles();
|
|
|
567
|
+ if (cachedFiles != null) {
|
|
|
568
|
+ for (File cachedFile : cachedFiles) {
|
|
|
569
|
+ size += calculateSize(cachedFile);
|
|
|
570
|
+ count += 1;
|
|
|
571
|
+ lastUsageDates.put(cachedFile,
|
|
|
572
|
+ cachedFile.lastModified());
|
|
|
573
|
+ }
|
|
|
574
|
+ cacheSize.set(size);
|
|
|
575
|
+ cacheCount.set(count);
|
|
|
576
|
+ }
|
|
|
577
|
+ }
|
|
|
578
|
+ }).start();
|
|
|
579
|
+ }
|
|
|
580
|
+
|
|
|
581
|
+ private void put(File file) {
|
|
|
582
|
+ int curCacheCount = cacheCount.get();
|
|
|
583
|
+ while (curCacheCount + 1 > countLimit) {
|
|
|
584
|
+ long freedSize = removeNext();
|
|
|
585
|
+ cacheSize.addAndGet(-freedSize);
|
|
|
586
|
+
|
|
|
587
|
+ curCacheCount = cacheCount.addAndGet(-1);
|
|
|
588
|
+ }
|
|
|
589
|
+ cacheCount.addAndGet(1);
|
|
|
590
|
+
|
|
|
591
|
+ long valueSize = calculateSize(file);
|
|
|
592
|
+ long curCacheSize = cacheSize.get();
|
|
|
593
|
+ while (curCacheSize + valueSize > sizeLimit) {
|
|
|
594
|
+ long freedSize = removeNext();
|
|
|
595
|
+ curCacheSize = cacheSize.addAndGet(-freedSize);
|
|
|
596
|
+ }
|
|
|
597
|
+ cacheSize.addAndGet(valueSize);
|
|
|
598
|
+
|
|
|
599
|
+ Long currentTime = System.currentTimeMillis();
|
|
|
600
|
+ file.setLastModified(currentTime);
|
|
|
601
|
+ lastUsageDates.put(file, currentTime);
|
|
|
602
|
+ }
|
|
|
603
|
+
|
|
|
604
|
+ private File get(String key) {
|
|
|
605
|
+ File file = newFile(key);
|
|
|
606
|
+ Long currentTime = System.currentTimeMillis();
|
|
|
607
|
+ file.setLastModified(currentTime);
|
|
|
608
|
+ lastUsageDates.put(file, currentTime);
|
|
|
609
|
+
|
|
|
610
|
+ return file;
|
|
|
611
|
+ }
|
|
|
612
|
+
|
|
|
613
|
+ private File newFile(String key) {
|
|
|
614
|
+ return new File(cacheDir, key.hashCode() + "");
|
|
|
615
|
+ }
|
|
|
616
|
+
|
|
|
617
|
+ private boolean remove(String key) {
|
|
|
618
|
+ File image = get(key);
|
|
|
619
|
+ return image.delete();
|
|
|
620
|
+ }
|
|
|
621
|
+
|
|
|
622
|
+ private void clear() {
|
|
|
623
|
+ lastUsageDates.clear();
|
|
|
624
|
+ cacheSize.set(0);
|
|
|
625
|
+ File[] files = cacheDir.listFiles();
|
|
|
626
|
+ if (files != null) {
|
|
|
627
|
+ for (File f : files) {
|
|
|
628
|
+ f.delete();
|
|
|
629
|
+ }
|
|
|
630
|
+ }
|
|
|
631
|
+ }
|
|
|
632
|
+
|
|
|
633
|
+ /**
|
|
|
634
|
+ * 移除旧的文件
|
|
|
635
|
+ *
|
|
|
636
|
+ * @return
|
|
|
637
|
+ */
|
|
|
638
|
+ private long removeNext() {
|
|
|
639
|
+ if (lastUsageDates.isEmpty()) {
|
|
|
640
|
+ return 0;
|
|
|
641
|
+ }
|
|
|
642
|
+
|
|
|
643
|
+ Long oldestUsage = null;
|
|
|
644
|
+ File mostLongUsedFile = null;
|
|
|
645
|
+ Set<Entry<File, Long>> entries = lastUsageDates.entrySet();
|
|
|
646
|
+ synchronized (lastUsageDates) {
|
|
|
647
|
+ for (Entry<File, Long> entry : entries) {
|
|
|
648
|
+ if (mostLongUsedFile == null) {
|
|
|
649
|
+ mostLongUsedFile = entry.getKey();
|
|
|
650
|
+ oldestUsage = entry.getValue();
|
|
|
651
|
+ } else {
|
|
|
652
|
+ Long lastValueUsage = entry.getValue();
|
|
|
653
|
+ if (lastValueUsage < oldestUsage) {
|
|
|
654
|
+ oldestUsage = lastValueUsage;
|
|
|
655
|
+ mostLongUsedFile = entry.getKey();
|
|
|
656
|
+ }
|
|
|
657
|
+ }
|
|
|
658
|
+ }
|
|
|
659
|
+ }
|
|
|
660
|
+
|
|
|
661
|
+ long fileSize = calculateSize(mostLongUsedFile);
|
|
|
662
|
+ if (mostLongUsedFile.delete()) {
|
|
|
663
|
+ lastUsageDates.remove(mostLongUsedFile);
|
|
|
664
|
+ }
|
|
|
665
|
+ return fileSize;
|
|
|
666
|
+ }
|
|
|
667
|
+
|
|
|
668
|
+ private long calculateSize(File file) {
|
|
|
669
|
+ return file.length();
|
|
|
670
|
+ }
|
|
|
671
|
+ }
|
|
|
672
|
+
|
|
|
673
|
+ /**
|
|
|
674
|
+ * @author 杨福海(michael) www.yangfuhai.com
|
|
|
675
|
+ * @version 1.0
|
|
|
676
|
+ * @title 时间计算工具类
|
|
|
677
|
+ */
|
|
|
678
|
+ private static class Utils {
|
|
|
679
|
+
|
|
|
680
|
+ /**
|
|
|
681
|
+ * 判断缓存的String数据是否到期
|
|
|
682
|
+ *
|
|
|
683
|
+ * @param str
|
|
|
684
|
+ * @return true:到期了 false:还没有到期
|
|
|
685
|
+ */
|
|
|
686
|
+ private static boolean isDue(String str) {
|
|
|
687
|
+ return isDue(str.getBytes());
|
|
|
688
|
+ }
|
|
|
689
|
+
|
|
|
690
|
+ /**
|
|
|
691
|
+ * 判断缓存的byte数据是否到期
|
|
|
692
|
+ *
|
|
|
693
|
+ * @param data
|
|
|
694
|
+ * @return true:到期了 false:还没有到期
|
|
|
695
|
+ */
|
|
|
696
|
+ private static boolean isDue(byte[] data) {
|
|
|
697
|
+ String[] strs = getDateInfoFromDate(data);
|
|
|
698
|
+ if (strs != null && strs.length == 2) {
|
|
|
699
|
+ String saveTimeStr = strs[0];
|
|
|
700
|
+ while (saveTimeStr.startsWith("0")) {
|
|
|
701
|
+ saveTimeStr = saveTimeStr
|
|
|
702
|
+ .substring(1, saveTimeStr.length());
|
|
|
703
|
+ }
|
|
|
704
|
+ long saveTime = Long.valueOf(saveTimeStr);
|
|
|
705
|
+ long deleteAfter = Long.valueOf(strs[1]);
|
|
|
706
|
+ if (System.currentTimeMillis() > saveTime + deleteAfter * 1000) {
|
|
|
707
|
+ return true;
|
|
|
708
|
+ }
|
|
|
709
|
+ }
|
|
|
710
|
+ return false;
|
|
|
711
|
+ }
|
|
|
712
|
+
|
|
|
713
|
+ private static String newStringWithDateInfo(int second, String strInfo) {
|
|
|
714
|
+ return createDateInfo(second) + strInfo;
|
|
|
715
|
+ }
|
|
|
716
|
+
|
|
|
717
|
+ private static byte[] newByteArrayWithDateInfo(int second, byte[] data2) {
|
|
|
718
|
+ byte[] data1 = createDateInfo(second).getBytes();
|
|
|
719
|
+ byte[] retdata = new byte[data1.length + data2.length];
|
|
|
720
|
+ System.arraycopy(data1, 0, retdata, 0, data1.length);
|
|
|
721
|
+ System.arraycopy(data2, 0, retdata, data1.length, data2.length);
|
|
|
722
|
+ return retdata;
|
|
|
723
|
+ }
|
|
|
724
|
+
|
|
|
725
|
+ private static String clearDateInfo(String strInfo) {
|
|
|
726
|
+ if (strInfo != null && hasDateInfo(strInfo.getBytes())) {
|
|
|
727
|
+ strInfo = strInfo.substring(strInfo.indexOf(mSeparator) + 1,
|
|
|
728
|
+ strInfo.length());
|
|
|
729
|
+ }
|
|
|
730
|
+ return strInfo;
|
|
|
731
|
+ }
|
|
|
732
|
+
|
|
|
733
|
+ private static byte[] clearDateInfo(byte[] data) {
|
|
|
734
|
+ if (hasDateInfo(data)) {
|
|
|
735
|
+ return copyOfRange(data, indexOf(data, mSeparator) + 1,
|
|
|
736
|
+ data.length);
|
|
|
737
|
+ }
|
|
|
738
|
+ return data;
|
|
|
739
|
+ }
|
|
|
740
|
+
|
|
|
741
|
+ private static boolean hasDateInfo(byte[] data) {
|
|
|
742
|
+ return data != null && data.length > 15 && data[13] == '-'
|
|
|
743
|
+ && indexOf(data, mSeparator) > 14;
|
|
|
744
|
+ }
|
|
|
745
|
+
|
|
|
746
|
+ private static String[] getDateInfoFromDate(byte[] data) {
|
|
|
747
|
+ if (hasDateInfo(data)) {
|
|
|
748
|
+ String saveDate = new String(copyOfRange(data, 0, 13));
|
|
|
749
|
+ String deleteAfter = new String(copyOfRange(data, 14,
|
|
|
750
|
+ indexOf(data, mSeparator)));
|
|
|
751
|
+ return new String[]{saveDate, deleteAfter};
|
|
|
752
|
+ }
|
|
|
753
|
+ return null;
|
|
|
754
|
+ }
|
|
|
755
|
+
|
|
|
756
|
+ private static int indexOf(byte[] data, char c) {
|
|
|
757
|
+ for (int i = 0; i < data.length; i++) {
|
|
|
758
|
+ if (data[i] == c) {
|
|
|
759
|
+ return i;
|
|
|
760
|
+ }
|
|
|
761
|
+ }
|
|
|
762
|
+ return -1;
|
|
|
763
|
+ }
|
|
|
764
|
+
|
|
|
765
|
+ private static byte[] copyOfRange(byte[] original, int from, int to) {
|
|
|
766
|
+ int newLength = to - from;
|
|
|
767
|
+ if (newLength < 0)
|
|
|
768
|
+ throw new IllegalArgumentException(from + " > " + to);
|
|
|
769
|
+ byte[] copy = new byte[newLength];
|
|
|
770
|
+ System.arraycopy(original, from, copy, 0,
|
|
|
771
|
+ Math.min(original.length - from, newLength));
|
|
|
772
|
+ return copy;
|
|
|
773
|
+ }
|
|
|
774
|
+
|
|
|
775
|
+ private static final char mSeparator = ' ';
|
|
|
776
|
+
|
|
|
777
|
+ private static String createDateInfo(int second) {
|
|
|
778
|
+ String currentTime = System.currentTimeMillis() + "";
|
|
|
779
|
+ while (currentTime.length() < 13) {
|
|
|
780
|
+ currentTime = "0" + currentTime;
|
|
|
781
|
+ }
|
|
|
782
|
+ return currentTime + "-" + second + mSeparator;
|
|
|
783
|
+ }
|
|
|
784
|
+
|
|
|
785
|
+ /*
|
|
|
786
|
+ * Bitmap → byte[]
|
|
|
787
|
+ */
|
|
|
788
|
+ private static byte[] Bitmap2Bytes(Bitmap bm) {
|
|
|
789
|
+ if (bm == null) {
|
|
|
790
|
+ return null;
|
|
|
791
|
+ }
|
|
|
792
|
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
|
|
793
|
+ bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
|
|
|
794
|
+ return baos.toByteArray();
|
|
|
795
|
+ }
|
|
|
796
|
+
|
|
|
797
|
+ /*
|
|
|
798
|
+ * byte[] → Bitmap
|
|
|
799
|
+ */
|
|
|
800
|
+ private static Bitmap Bytes2Bimap(byte[] b) {
|
|
|
801
|
+ if (b.length == 0) {
|
|
|
802
|
+ return null;
|
|
|
803
|
+ }
|
|
|
804
|
+ return BitmapFactory.decodeByteArray(b, 0, b.length);
|
|
|
805
|
+ }
|
|
|
806
|
+
|
|
|
807
|
+ /*
|
|
|
808
|
+ * Drawable → Bitmap
|
|
|
809
|
+ */
|
|
|
810
|
+ private static Bitmap drawable2Bitmap(Drawable drawable) {
|
|
|
811
|
+ if (drawable == null) {
|
|
|
812
|
+ return null;
|
|
|
813
|
+ }
|
|
|
814
|
+ // 取 drawable 的长宽
|
|
|
815
|
+ int w = drawable.getIntrinsicWidth();
|
|
|
816
|
+ int h = drawable.getIntrinsicHeight();
|
|
|
817
|
+ // 取 drawable 的颜色格式
|
|
|
818
|
+ Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
|
|
|
819
|
+ : Bitmap.Config.RGB_565;
|
|
|
820
|
+ // 建立对应 bitmap
|
|
|
821
|
+ Bitmap bitmap = Bitmap.createBitmap(w, h, config);
|
|
|
822
|
+ // 建立对应 bitmap 的画布
|
|
|
823
|
+ Canvas canvas = new Canvas(bitmap);
|
|
|
824
|
+ drawable.setBounds(0, 0, w, h);
|
|
|
825
|
+ // 把 drawable 内容画到画布中
|
|
|
826
|
+ drawable.draw(canvas);
|
|
|
827
|
+ return bitmap;
|
|
|
828
|
+ }
|
|
|
829
|
+
|
|
|
830
|
+ /*
|
|
|
831
|
+ * Bitmap → Drawable
|
|
|
832
|
+ */
|
|
|
833
|
+ @SuppressWarnings("deprecation")
|
|
|
834
|
+ private static Drawable bitmap2Drawable(Bitmap bm) {
|
|
|
835
|
+ if (bm == null) {
|
|
|
836
|
+ return null;
|
|
|
837
|
+ }
|
|
|
838
|
+ return new BitmapDrawable(bm);
|
|
|
839
|
+ }
|
|
|
840
|
+ }
|
|
869
|
841
|
|
|
870
|
842
|
} |
|
|
\ No newline at end of file |
...
|
...
|
|