Examples with CacheControl okhttp3.CacheControl used on opensource projects

Example 41 with CacheControl

use of okhttp3.CacheControl in project Atom_Android by Rogrand-Dev.

the class HttpModule method provideClient.

@Singleton
@Provides
OkHttpClient provideClient(OkHttpClient.Builder builder) {
    if (DemoApp.getAppContext().isDebug()) {
        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {

            @Override
            public void log(String message) {
                LogUtils.i(TAG, message);
            }
        });
        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        // 设置 Log 拦截器
        builder.addInterceptor(loggingInterceptor);
    }
    File cacheFile = new File(DataUtils.getCacheFile(DemoApp.getAppContext()), "RograndCache");
    // 100 MB
    int cacheSize = 100 * 1024 * 1024;
    Cache cache = new Cache(cacheFile, cacheSize);
    Interceptor cacheInterceptor = new Interceptor() {

        @Override
        public Response intercept(Chain chain) throws IOException {
            CacheControl.Builder cacheBuilder = new CacheControl.Builder();
            cacheBuilder.maxAge(0, TimeUnit.SECONDS);
            cacheBuilder.maxStale(365, TimeUnit.DAYS);
            CacheControl cacheControl = cacheBuilder.build();
            Request request = chain.request();
            if (!NetUtils.isNetworkAvailable(DemoApp.getAppContext())) {
                request = request.newBuilder().cacheControl(cacheControl).build();
            }
            Response response = chain.proceed(request);
            if (NetUtils.isNetworkAvailable(DemoApp.getAppContext())) {
                // 有网络时, 不缓存, 最大保存时长为0
                int maxAge = 0;
                response.newBuilder().header("Cache-Control", "public, max-age=" + maxAge).removeHeader("Pragma").build();
            } else {
                // 无网络时，设置超时为4周
                int maxStale = 60 * 60 * 24 * 28;
                response.newBuilder().header("Cache-Control", "public, only-if-cached, max-stale=" + maxStale).removeHeader("Pragma").build();
            }
            return response;
        }
    };
    // 设置 header（设置 Token、API 版本号）
    Interceptor headerInterceptor = new Interceptor() {

        @Override
        public Response intercept(Chain chain) throws IOException {
            Request request = chain.request();
            request = request.newBuilder().addHeader("Authorization", "Bearer " + SPUtils.get(DemoApp.getAppContext(), Constants.ACCESS_TOKEN, "")).addHeader("api_version", UrlConstants.API_VERSION).build();
            return chain.proceed(request);
        }
    };
    // 设置统一的请求头部参数
    builder.addInterceptor(headerInterceptor);
    // 设置缓存
    builder.addNetworkInterceptor(cacheInterceptor);
    builder.addInterceptor(cacheInterceptor);
    builder.cache(cache);
    // 设置连接超时
    builder.connectTimeout(TIME_OUT, TimeUnit.SECONDS);
    // 设置读取数据超时
    builder.readTimeout(TIME_OUT, TimeUnit.SECONDS);
    // 设置写入数据超时
    builder.writeTimeout(TIME_OUT, TimeUnit.SECONDS);
    // 设置 Stetho
    builder.addNetworkInterceptor(new StethoInterceptor());
    // 设置 Cookie
    builder.cookieJar(new CookieManger(DemoApp.getAppContext()));
    // 错误重连
    builder.retryOnConnectionFailure(true);
    return builder.build();
}

Example 42 with CacheControl

use of okhttp3.CacheControl in project Signal-Android by WhisperSystems.

the class ChunkedDataFetcher method makeChunkRequest.

private CallRequestController makeChunkRequest(@NonNull OkHttpClient client, @NonNull String url, @NonNull ByteRange range) {
    Request request = new Request.Builder().url(url).cacheControl(NO_CACHE).addHeader("Range", "bytes=" + range.start + "-" + range.end).addHeader("Accept-Encoding", "identity").build();
    Call call = client.newCall(request);
    CallRequestController callController = new CallRequestController(call);
    call.enqueue(new okhttp3.Callback() {

        @Override
        public void onFailure(@NonNull Call call, @NonNull IOException e) {
            callController.cancel();
        }

        @Override
        public void onResponse(@NonNull Call call, @NonNull Response response) {
            if (!response.isSuccessful()) {
                callController.cancel();
                if (response.body() != null)
                    response.body().close();
                return;
            }
            if (response.body() == null) {
                callController.cancel();
                if (response.body() != null)
                    response.body().close();
                return;
            }
            InputStream stream = new SkippingInputStream(ContentLengthInputStream.obtain(response.body().byteStream(), response.body().contentLength()), range.ignoreFirst);
            callController.setStream(stream);
        }
    });
    return callController;
}

Example 43 with CacheControl

use of okhttp3.CacheControl in project Signal-Android by WhisperSystems.

the class ChunkedDataFetcher method fetchChunksWithUnknownTotalSize.

private RequestController fetchChunksWithUnknownTotalSize(@NonNull String url, @NonNull Callback callback) {
    CompositeRequestController compositeController = new CompositeRequestController();
    long chunkSize = new SecureRandom().nextInt(1024) + 1024;
    Request request = new Request.Builder().url(url).cacheControl(NO_CACHE).addHeader("Range", "bytes=0-" + (chunkSize - 1)).addHeader("Accept-Encoding", "identity").build();
    Call firstChunkCall = client.newCall(request);
    compositeController.addController(new CallRequestController(firstChunkCall));
    firstChunkCall.enqueue(new okhttp3.Callback() {

        @Override
        public void onFailure(@NonNull Call call, @NonNull IOException e) {
            if (!compositeController.isCanceled()) {
                callback.onFailure(e);
                compositeController.cancel();
            }
        }

        @Override
        public void onResponse(@NonNull Call call, @NonNull Response response) {
            String contentRange = response.header("Content-Range");
            if (!response.isSuccessful()) {
                Log.w(TAG, "Non-successful response code: " + response.code());
                callback.onFailure(new IOException("Non-successful response code: " + response.code()));
                compositeController.cancel();
                if (response.body() != null)
                    response.body().close();
                return;
            }
            if (TextUtils.isEmpty(contentRange)) {
                Log.w(TAG, "Missing Content-Range header.");
                callback.onFailure(new IOException("Missing Content-Length header."));
                compositeController.cancel();
                if (response.body() != null)
                    response.body().close();
                return;
            }
            if (response.body() == null) {
                Log.w(TAG, "Missing body.");
                callback.onFailure(new IOException("Missing body on initial request."));
                compositeController.cancel();
                return;
            }
            Optional<Long> contentLength = parseLengthFromContentRange(contentRange);
            if (!contentLength.isPresent()) {
                Log.w(TAG, "Unable to parse length from Content-Range.");
                callback.onFailure(new IOException("Unable to get parse length from Content-Range."));
                compositeController.cancel();
                return;
            }
            if (chunkSize >= contentLength.get()) {
                try {
                    callback.onSuccess(response.body().byteStream());
                } catch (IOException e) {
                    callback.onFailure(e);
                    compositeController.cancel();
                }
            } else {
                InputStream stream = ContentLengthInputStream.obtain(response.body().byteStream(), chunkSize);
                fetchChunks(url, contentLength.get(), Optional.of(new Pair<>(stream, chunkSize)), compositeController, callback);
            }
        }
    });
    return compositeController;
}

Example 44 with CacheControl

use of okhttp3.CacheControl in project Signal-Android by WhisperSystems.

the class LinkPreviewRepository method fetchMetadata.

@NonNull
private RequestController fetchMetadata(@NonNull String url, Consumer<Metadata> callback) {
    Call call = client.newCall(new Request.Builder().url(url).cacheControl(NO_CACHE).build());
    call.enqueue(new okhttp3.Callback() {

        @Override
        public void onFailure(@NonNull Call call, @NonNull IOException e) {
            Log.w(TAG, "Request failed.", e);
            callback.accept(Metadata.empty());
        }

        @Override
        public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
            if (!response.isSuccessful()) {
                Log.w(TAG, "Non-successful response. Code: " + response.code());
                callback.accept(Metadata.empty());
                return;
            } else if (response.body() == null) {
                Log.w(TAG, "No response body.");
                callback.accept(Metadata.empty());
                return;
            }
            String body = OkHttpUtil.readAsString(response.body(), FAILSAFE_MAX_TEXT_SIZE);
            OpenGraph openGraph = LinkPreviewUtil.parseOpenGraphFields(body);
            Optional<String> title = openGraph.getTitle();
            Optional<String> description = openGraph.getDescription();
            Optional<String> imageUrl = openGraph.getImageUrl();
            long date = openGraph.getDate();
            if (imageUrl.isPresent() && !LinkPreviewUtil.isValidPreviewUrl(imageUrl.get())) {
                Log.i(TAG, "Image URL was invalid or for a non-whitelisted domain. Skipping.");
                imageUrl = Optional.absent();
            }
            callback.accept(new Metadata(title, description, date, imageUrl));
        }
    });
    return new CallRequestController(call);
}