/**
* Start up a KinesisProducer instance.
*
* <p>
* Since this creates a child process, it is fairly expensive. Avoid
* creating more than one per application, unless putting to multiple
* regions at the same time. All streams in the same region can share the
* same instance.
*
* <p>
* All methods in KinesisProducer are thread-safe.
*
* @param config
* Configuration for the KinesisProducer. See the docs for that
* class for details.
*
* @see KinesisProducerConfiguration
*/
public KinesisDotNetProducer(ILogger log, KPLNETConfiguration config)
{
this.config = config;
this.log = log;
if (config.runAsDaemon)
{
extractBinaries();
}
if (config.AWSCredentials == null)
{
string akid = Environment.GetEnvironmentVariable(AWS_ACCESS_KEY_ID);
string sKey = Environment.GetEnvironmentVariable(AWS_SECRET_ACCESS_KEY);
if (akid == null || sKey == null)
{
throw new ArgumentNullException("AWSCredentials is null. AWS_ACCESS_KEY_ID or AWS_SECRET_KEY is not available in Environment variable. Either set the environment variables or pass AWSCredentials in the config object.");
}
config.AWSCredentials = new AWSCredentials()
{
Akid = akid, SecretKey = sKey
};
}
env = new Dictionary <string, string>()
{
{ "LD_LIBRARY_PATH", pathToLibDir },
{ "DYLD_LIBRARY_PATH", pathToLibDir },
{ "CA_DIR", pathToTmpDir }
};
child = KPLRepBuilder.GetKPLRep(pathToExecutable, OnMessage, OnError, pathToTmpDir, config, env, log);
}
private void OnError(Exception t)
{
// Don't log error if the user called destroy
if (!destroyed)
{
log.error("Error in child process", t);
}
// Fail all outstanding futures
foreach (var entry in futures)
{
Task.Run(() =>
{
entry.Value.SetException(t);
});
}
futures.Clear();
if (processFailureBehavior == ProcessFailureBehavior.AutoRestart && !destroyed)
{
log.info("Restarting native producer process.");
child = KPLRepBuilder.GetKPLRep(pathToExecutable, OnMessage, OnError, pathToTmpDir, config, env, log);
}
else
{
// Only restart child if it's not an irrecoverable error, and if
// there has been some time (3 seconds) between the last child
// creation. If the child process crashes almost immediately, we're
// going to abort to avoid going into a loop.
if (!(t is IrrecoverableError) && DateTime.Now > lastChild.AddSeconds(3))
{
lastChild = DateTime.Now;
child = KPLRepBuilder.GetKPLRep(pathToExecutable, OnMessage, OnError, pathToTmpDir, config, env, log);
}
}
}
