Examples with CacheControl okhttp3.CacheControl used on opensource projects

Example 46 with CacheControl

use of okhttp3.CacheControl in project BaseProject by fly803.

the class CacheInterceptor method intercept.

@Override
public Response intercept(Chain chain) throws IOException {
    Request request = chain.request();
    if (!NetworkUtils.isConnected()) {
        // 无网络下强制使用缓存，无论缓存是否过期,此时该请求实际上不会被发送出去。
        request = request.newBuilder().cacheControl(CacheControl.FORCE_CACHE).build();
    }
    okhttp3.Response response = chain.proceed(request);
    if (NetworkUtils.isConnected()) {
        // 有网络情况下，根据请求接口的设置，配置缓存。
        // 这样在下次请求时，根据缓存决定是否真正发出请求。
        String cacheControl = request.cacheControl().toString();
        // 当然如果你想在有网络的情况下都直接走网络，那么只需要
        // 将其超时时间这是为0即可:String cacheControl="Cache-Control:public,max-age=0"
        // read from cache for 1 minute
        int maxAge = 60 * 60;
        return response.newBuilder().header("Cache-Control", "public, max-age=" + maxAge).removeHeader("Pragma").build();
    } else {
        // 无网络
        // tolerate 4-weeks stale
        int maxStale = 60 * 60 * 24 * 28;
        return response.newBuilder().header("Cache-Control", "public,only-if-cached,max-stale=" + maxStale).removeHeader("Pragma").build();
    }
}