chore: add timeout verifying client interceptor (#60)

Author: aaron-steinfeld

grpc-client-utils/src/main/java/org/hypertrace/core/grpcutils/client/TimeoutVerifyingClientInterceptor.java

@@ -0,0 +1,24 @@
+package org.hypertrace.core.grpcutils.client;
+
+import static java.util.Objects.isNull;
+
+import io.grpc.CallOptions;
+import io.grpc.Channel;
+import io.grpc.ClientCall;
+import io.grpc.ClientInterceptor;
+import io.grpc.MethodDescriptor;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class TimeoutVerifyingClientInterceptor implements ClientInterceptor {
+
+  @Override
+  public <ReqT, RespT> ClientCall<ReqT, RespT> interceptCall(
+      MethodDescriptor<ReqT, RespT> methodDescriptor, CallOptions callOptions, Channel channel) {
+    if (isNull(callOptions.getDeadline())) {
+      log.warn("Missing deadline for call to method {}", methodDescriptor.getFullMethodName());
+    }
+
+    return channel.newCall(methodDescriptor, callOptions);
+  }
+}