Descriptions of miscellaneous APIs supported for Event Stream Processor adapters.
| API | Description |
|---|---|
| in64_t getNumberOfGoodRows(void* adapter); | Retrieves information from the adapter implementation about the number of good rows processed by the adapter. |
| int64_t getNumberOfBadRows(void* adapter); | Retrieves information from the adapter implementation about the number of bad rows processed by the adapter. |
| int64_t getTotalRowsProcessed(void* adapter); | Retrieves information from the adapter implementation about the total number of rows processed by the adapter. |
| bool canDiscover(void* adapter); | Retrieves information from the adapter implementation about whether it supports schema discovery functionality. |
| bool hasError(void* adapter); | Retrieves information from the adapter implementation about whether there were any errors during the processing of data. |
| void getError(void* adapter, char**errorString); | Retrieves error information from the adapter implementation. |
| void getStatistics(void* adapter, AdapterStatistics* adapterStatistics) | Retrieves custom statistics
information from an adapter. The Server uses this to periodically
update the _esp_adapter_statistics metadata stream. Enable the
time-granularity project option to update the
_esp_adapter_statistics metadata stream. The adapter stores its statistics in key value format within the AdapterStatistics object. The AdapterStatistics object is populated using the void addAdapterStatistics(void* adapterStatistics, const char* key, const char* value) API, which is available in the adapter utility library. |
| int64_t getLatency(void* adapter) | Retrieves latency information from the adapter, in microseconds, and uses this information to periodically update the latency column in the _esp_connectors metadata stream. Enable the time-granularity project option to update the _esp_connectors metadata stream. |