add stats_interval_in_seconds parameter to the client configuration (#248)

Co-authored-by: Abdulhadi Celenlioglu <abdulhadi@intenseye.com>

pulsar/__init__.py

diff --git a/pulsar/__init__.py b/pulsar/__init__.py
index 48ff664..ba89d40 100644
--- a/pulsar/__init__.py
+++ b/pulsar/__init__.py
@@ -482,6 +482,7 @@
                  message_listener_threads=1,
                  concurrent_lookup_requests=50000,
                  log_conf_file_path=None,
+                 stats_interval_in_seconds=600,
                  use_tls=False,
                  tls_trust_certs_file_path=None,
                  tls_allow_insecure_connection=False,
@@ -520,6 +521,9 @@
         log_conf_file_path: str, optional
             This parameter is deprecated and makes no effect. It's retained only for compatibility.
             Use `logger` to customize a logger.
+        stats_interval_in_seconds: int, default=600
+            Set the interval between each stats information update. Stats are printed and/or
+            passed to the statistics listener at this interval. Set to 0 to disable stats collection.
         use_tls: bool, default=False
             Configure whether to use TLS encryption on the connection. This setting is deprecated.
             TLS will be automatically enabled if the ``serviceUrl`` is set to ``pulsar+ssl://`` or ``https://``
@@ -560,6 +564,7 @@
         _check_type(int, message_listener_threads, 'message_listener_threads')
         _check_type(int, concurrent_lookup_requests, 'concurrent_lookup_requests')
         _check_type_or_none(str, log_conf_file_path, 'log_conf_file_path')
+        _check_type(int, stats_interval_in_seconds, 'stats_interval_in_seconds')
         _check_type(bool, use_tls, 'use_tls')
         _check_type_or_none(str, tls_trust_certs_file_path, 'tls_trust_certs_file_path')
         _check_type(bool, tls_allow_insecure_connection, 'tls_allow_insecure_connection')
@@ -574,6 +579,7 @@
         conf.io_threads(io_threads)
         conf.message_listener_threads(message_listener_threads)
         conf.concurrent_lookup_requests(concurrent_lookup_requests)
+        conf.stats_interval_in_seconds(stats_interval_in_seconds)
 
         if isinstance(logger, logging.Logger):
             conf.set_logger(self._prepare_logger(logger))

src/config.cc

diff --git a/src/config.cc b/src/config.cc
index bada39b..7a4aea3 100644
--- a/src/config.cc
+++ b/src/config.cc
@@ -157,6 +157,9 @@
         .def("concurrent_lookup_requests", &ClientConfiguration::getConcurrentLookupRequest)
         .def("concurrent_lookup_requests", &ClientConfiguration::setConcurrentLookupRequest,
              return_value_policy::reference)
+        .def("stats_interval_in_seconds", &ClientConfiguration::getStatsIntervalInSeconds)
+        .def("stats_interval_in_seconds", &ClientConfiguration::setStatsIntervalInSeconds,
+             return_value_policy::reference)
         .def("use_tls", &ClientConfiguration::isUseTls)
         .def("use_tls", &ClientConfiguration::setUseTls, return_value_policy::reference)
         .def("tls_trust_certs_file_path", &ClientConfiguration::getTlsTrustCertsFilePath,

tests/pulsar_test.py

diff --git a/tests/pulsar_test.py b/tests/pulsar_test.py
index 4d5dcb3..4e4bd37 100755
--- a/tests/pulsar_test.py
+++ b/tests/pulsar_test.py
@@ -828,6 +828,7 @@
         self._check_value_error(lambda: Client(None))
         self._check_value_error(lambda: Client(self.serviceUrl, authentication="test"))
         self._check_value_error(lambda: Client(self.serviceUrl, operation_timeout_seconds="test"))
+        self._check_value_error(lambda: Client(self.serviceUrl, stats_interval_in_seconds="test"))
         self._check_value_error(lambda: Client(self.serviceUrl, io_threads="test"))
         self._check_value_error(lambda: Client(self.serviceUrl, message_listener_threads="test"))
         self._check_value_error(lambda: Client(self.serviceUrl, concurrent_lookup_requests="test"))