RATIS-2402. Fix CallId overflow when parsing gRPC metadata. (#1344)

Author: slfan1989

ratis-grpc/src/main/java/org/apache/ratis/grpc/GrpcUtil.java

@@ -146,7 +146,7 @@ static long getCallId(Throwable t) {
       final Metadata trailers = ((StatusRuntimeException)t).getTrailers();
       if (trailers != null) {
         final String callId = trailers.get(CALL_ID);
-        return callId != null ? Integer.parseInt(callId) : -1;
+        return callId != null ? Long.parseUnsignedLong(callId) : -1;
       }
     }
     return -1;

ratis-test/src/test/java/org/apache/ratis/grpc/TestCustomGrpcServices.java

@@ -28,6 +28,7 @@
 import org.apache.ratis.test.proto.GreeterGrpc;
 import org.apache.ratis.test.proto.HelloReply;
 import org.apache.ratis.test.proto.HelloRequest;
+import org.apache.ratis.thirdparty.io.grpc.StatusRuntimeException;
 import org.apache.ratis.thirdparty.io.grpc.ManagedChannel;
 import org.apache.ratis.thirdparty.io.grpc.ManagedChannelBuilder;
 import org.apache.ratis.thirdparty.io.grpc.netty.NettyServerBuilder;
@@ -202,4 +203,23 @@ static void sendAndAssertReply(String name, GreeterClient client, GreeterImpl gr
     final String expected = greeter.toReply(name);
     Assertions.assertEquals(expected, computed);
   }
+
+  @Test
+  public void testGetCallIdWithLargeValue() {
+    long largeCallId = (long) Integer.MAX_VALUE + 1L;
+    StatusRuntimeException ex = GrpcUtil.wrapException(new IOException("test"), largeCallId);
+    Assertions.assertEquals(largeCallId, GrpcUtil.getCallId(ex));
+  }
+
+  @Test
+  public void testGetCallIdWithMissingValue() {
+    StatusRuntimeException ex = GrpcUtil.wrapException(new IOException("test"));
+    Assertions.assertEquals(-1L, GrpcUtil.getCallId(ex));
+  }
+
+  @Test
+  public void testGetCallIdWithZeroValue() {
+    StatusRuntimeException ex = GrpcUtil.wrapException(new IOException("test"), 0L);
+    Assertions.assertEquals(-1L, GrpcUtil.getCallId(ex));
+  }
 }