java类android.net.http.HttpResponseCache的实例源码

/**
 *
 */
private void initCacheFile() {
    try {
        httpCacheDir = new File(getCacheDir(), "http");
        httpCacheDir.setReadable(true);
        HttpResponseCache.install(httpCacheDir, httpCacheSize);
        cache = new Cache(httpCacheDir, httpCacheSize);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

@Override
public void onTerminate() {
    super.onTerminate();

    // TODO clear cookiestore content here

    // remove cached files
    HttpResponseCache cache = HttpResponseCache.getInstalled();
    if (cache != null) {
        cache.flush();
    }
}

@Override
public void run() {
    Process.setThreadPriority(THREAD_PRIORITY_BACKGROUND);

    final HttpResponseCache cache = HttpResponseCache.getInstalled();
    if (cache != null)
        cache.flush();
}

public DefaultDownloader(Context context)  {
    cacheDir = new File(context.getCacheDir(), "http");
    try {
        HttpResponseCache.install(cacheDir, cacheSize);
    }
    catch (IOException e) {
        Log.i(TAG, "HTTP response cache installation failed:" + e);
    }
}

@Override
public void onCreate() {
    super.onCreate();

    File httpCacheDir = new File(getCacheDir(), "http");

    try {
        HttpResponseCache.install(httpCacheDir, HTTP_CACHE_SIZE);
    }
    catch (IOException e) {
        Log.e(TAG, "Failed to create http cache!", e);
    }
}

private void tryInstallResponseCache() {
    if(HttpResponseCache.getInstalled() == null) {
        File cacheDir = new File(getCacheDir(), "http");
        try {
            HttpResponseCache.install(cacheDir, 10 * 1024 * 1024);
        } catch (IOException e) {
            Log.w(TAG, "Creating response cache", e);
        }
    }
}

@AfterInject
@Trace(tag = TAG, level = Log.DEBUG)
void init() {

    // if (BuildConfig.DEBUG) {
    // aviewPrefs.pref_openedDrawer().put(false);
    // }

    // Create a unique id for this install if one doesn't already exist
    if (!aviewPrefs.ivid().exists()) {
        if (Log.isLoggable(TAG, Log.DEBUG))
            Log.d(TAG, "Creating new ivid");
        aviewPrefs.ivid().put(UUID.randomUUID().toString());
    }

    if (Log.isLoggable(TAG, Log.DEBUG))
        Log.d(TAG, "ivid=" + aviewPrefs.ivid().get());

    // Create a cache for automatically caching HTTP requests
    try {
        File httpCacheDir = new File(this.getCacheDir(), "http");
        long httpCacheSize = 10 * 1024 * 1024; // 10 MiB
        HttpResponseCache.install(httpCacheDir, httpCacheSize);
    } catch (IOException e) {
        if (Log.isLoggable(TAG, Log.INFO))
            Log.i(TAG, "HTTP response cache installation failed:" + e);
    }
}

@Override
@Trace
public void onTerminate() {
    super.onTerminate();
    aviewVideoService.close();

    HttpResponseCache cache = HttpResponseCache.getInstalled();
    if (cache != null) {
        cache.flush();
    }

}

@Override
protected void onStop() {
    HttpResponseCache cache = HttpResponseCache.getInstalled();
    if (cache != null) {
        cache.flush();
    }

    eventBus.unregister(this);
    super.onStop();
}

public FileCache(File file, long size) throws IOException {
    this.file = file;
    this.size = size;
    HttpResponseCache.install(file, size);
}