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#include <mbgl/storage/file_source_manager.hpp>
#include <mbgl/storage/resource.hpp>
#include <mbgl/storage/resource_options.hpp>
#include <mbgl/util/async_request.hpp>
#include <mbgl/util/logging.hpp>
#include <atomic>
#include "file_source.hpp"
namespace mbgl {
std::atomic_size_t requestCount{0};
std::atomic_size_t transferredSize{0};
std::atomic_bool active{false};
std::atomic_bool offline{true};
ProxyFileSource::ProxyFileSource(std::shared_ptr<FileSource> defaultResourceLoader_, const ResourceOptions& options)
: defaultResourceLoader(std::move(defaultResourceLoader_)) {
assert(defaultResourceLoader);
if (offline) {
std::shared_ptr<FileSource> dbfs = FileSourceManager::get()->getFileSource(FileSourceType::Database, options);
dbfs->setProperty(READ_ONLY_MODE_KEY, true);
}
}
ProxyFileSource::~ProxyFileSource() = default;
std::unique_ptr<AsyncRequest> ProxyFileSource::request(const Resource& resource, Callback callback) {
auto transformed = resource;
// If offline, force always loading the resource from the cache
// so we don't make any network request.
if (offline) {
transformed.loadingMethod = Resource::LoadingMethod::CacheOnly;
}
// This is needed for compatibility with the style tests that
// are using local:// instead of http:// which is the schema
// we support for cached files.
if (transformed.url.compare(0, 8, "local://") == 0) {
transformed.url.replace(0, 8, "http://");
if (transformed.kind == Resource::Kind::Tile && transformed.tileData) {
transformed.tileData->urlTemplate.replace(0, 8, "http://");
}
}
if (transformed.url.compare(0, 22, "http://localhost:2900/") == 0) {
transformed.url.replace(0, 22, "http://");
if (transformed.kind == Resource::Kind::Tile && transformed.tileData) {
transformed.tileData->urlTemplate.replace(0, 22, "http://");
}
}
return defaultResourceLoader->request(transformed, [=](Response response) {
if (transformed.loadingMethod == Resource::LoadingMethod::CacheOnly && response.noContent) {
if (transformed.kind == Resource::Kind::Tile && transformed.tileData) {
mbgl::Log::Info(mbgl::Event::Database,
"Resource not found in cache: %s (%s)",
transformed.url.c_str(),
transformed.tileData->urlTemplate.c_str());
} else {
mbgl::Log::Info(mbgl::Event::Database, "Resource not found in cache: %s", transformed.url.c_str());
}
}
std::size_t size = response.data != nullptr ? response.data->size() : 0;
if (active) {
requestCount++;
transferredSize += size;
}
callback(response);
});
}
// static
void ProxyFileSource::setOffline(bool status) {
offline = status;
}
// static
void ProxyFileSource::setTrackingActive(bool active_) {
active = active_;
requestCount = 0;
transferredSize = 0;
}
// static
bool ProxyFileSource::isTrackingActive() {
return active;
}
// static
size_t ProxyFileSource::getRequestCount() {
return requestCount;
}
// static
size_t ProxyFileSource::getTransferredSize() {
return transferredSize;
}
} // namespace mbgl
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