iamsmkr commented on issue #218:
URL: https://github.com/apache/arrow-cookbook/issues/218#issuecomment-1138664719
@lidavidm This is how I create the server. Anything suspicious here?
```java
package com.iamsmkr.arrowflight;
import org.apache.arrow.flight.FlightServer;
import org.apache.arrow.flight.Location;
import org.apache.arrow.memory.BufferAllocator;
import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class ArrowFlightServer {
private final BufferAllocator allocator;
private final FlightServer flightServer;
volatile private boolean started = false;
public ArrowFlightServer(String address, int port, BufferAllocator
allocator) {
Location location = Location.forGrpcInsecure(address, port);
this.allocator = allocator;
this.flightServer =
FlightServer.builder(
allocator,
location,
new ArrowFlightProducer(allocator, location)
).build();
ExecutorService service = Executors.newCachedThreadPool();
service.submit(() -> {
try {
synchronized (flightServer) {
flightServer.start();
started = true;
System.out.println("ArrowFlight server started.
Listening on port " + flightServer.getPort());
flightServer.notify();
}
flightServer.awaitTermination();
} catch (IOException e) {
System.out.println("Failed to start ArrowFlight server! " +
e.getMessage());
e.printStackTrace();
} catch (InterruptedException e) {
// e.printStackTrace();
} finally {
close();
}
});
}
public void waitForServerToStart() {
synchronized (flightServer) {
while (!started) {
try {
flightServer.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public void close() {
try {
flightServer.shutdown();
allocator.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
```
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