v1.7.0

Common

• Changed the product name from HERE OLP SDK for C++ to HERE Data SDK for C++.
• Fixed formatting to be compliant with the coding style.
• Fixed the issue with olp::client::TaskContext. Now, it does not trigger cancellation after a successful operation.
• Added the default_cache_expiration to olp::client::OlpClientSettings. Now, you can control how long the downloaded data is considered valid. Once the data is expired, you cannot retrieve it, and it is gradually removed from the cache when new data is added.
• Added the OLP_SDK_DISABLE_DEBUG_LOGGING CMake option. When enabled, the SDK does not print any TRACE or DEBUG level log messages.
• Added the compression setting to olp::cache::CacheSettings. You can now pass the flag to the underlying database engine to enable or disable the data compression.
• Added the Compact API to olp::cache::DefaultCache. It is used to optimize the underlying mutable cache storage. Compaction also starts automatically once the database size reaches the maximum in a separate thread.
• Changed the olp::cache::DefaultCache read operation. As a result, the number of memory allocation decreased, and performance increased.
• Added support for the HTTP OPTIONS request in olp::http::Network.
• The LRU eviction now evicts expired elements first. The eviction time decreased.
• Removed the retry code from olp::http::NetworkCurl. Now, retries are performed by olp::client::OlpClient.
• Added a prewarm helper method to olp::client::OlpClientSettingsFactory. This method can be used to perform DNS prefetch and TLS preconnect for certain URLs that are widely used by the clients. For example, accounts and lookup.
• Enabled certificate validation in olp::http::NetworkCurl.

olp-cpp-sdk-authentication

• The olp::authentication::TokenProvider class now handles the concurrent by blocking all requesters until the already triggered request completes. It verifies that only one token is requested at the same time.
• The IntrospectApp and Authorize APIs now use ExponentialBackdownStrategy internally in case of a 5xx HTTP status code.
• olp::authentication::AuthenticationError class is deprecated and will be replaced by olp::client::ApiError. It will be removed by 12.2020.
• Switched the SignInClient method in the olp::authentication::AuthenticationClient functionality to TaskContext.
• Added a fallback mechanism for SignInClient. Now, when the system time is wrong, the server time is used.
• Changed the olp::authentication::ActionResult class. Permissions are now represented by the olp::authentication::Permission class.
• The use_system_time flag in olp::authentication::Settings is now enabled by default. Now, system time is used for token requests by default.

olp-cpp-sdk-dataservice-read

• The module now resolves all service APIs for a specific HRN in a single request.
• Reduced the number of logs produced by the component.
• Merged the same concurrent Lookup API requests into a single HTTP request.
• Merged the same concurrent GetBlob and GetVolatileBlob API requests into a single HTTP request.
• Merged the same concurrent QuadTreeIndex API requests into a single HTTP request.
• Work In Progress Added a new ListVersions API to olp::dataservice::read::CatalogClient. You can use it to get information on catalog versions.
• Work In Progress Added a new GetAggregatedData API to olp::dataservice::read::VersionedLayerClient. You can use it to retrieve tile data (if it exists) or the nearest parent tile data. Use this API for tile-tree structures where children tile data is aggregated and stored in parent tiles.