How do we set values for Enum & map data types

Jalaja Raj

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Jul 18, 2022, 12:17:24 PM7/18/22

to Protocol Buffers

Hello,

Below is a snippet of my proto file

message UnitType {
enum E {
// Default - do not use
UNDEFINED = 0;
INTEGER = 1;
DECIMAL = 2;
}
}

message AdditionalKey {
string name = 1;
// If expected_values is empty, the value of the additional key can be anything.
// Otherwise, it should be one of the expected_values.
repeated string expected_values = 2;
}

// Definition of an accumulator for validation on writes
message Definition {
UnitType.E unit_type = 1;
// The stage in the adjudication pipeline that creates accumulators of this definition.
UnitType.E stage = 3;
repeated AdditionalKey additional_keys = 2;
}

message ReadAccumulatorDefinitionsResponse {
// definitions is a map of accumulator name to corresponding definition.
// accumulator names that were not found in the database
// will not be included in the definitions map.
map<string, Definition> definitions = 1;
}

I am trying to construct a test.java class for setting values to instances of the above messages and the code snippet is as follows: -

package accumulators;
import static org.testng.Assert.assertNotNull;

import com.OscarHealth.accumulators.ReadAccumulatorNamesRequest;
import com.OscarHealth.accumulators.UnitType;
import com.OscarHealth.accumulators.UnitType.Builder;
import com.OscarHealth.accumulators.UnitType.E;
public class accumulatorsTest {

public static void main(String[] args) {
// TODO Auto-generated method stub

/* ReadAccumulatorNamesRequest.Builder builder = ReadAccumulatorNamesRequest.newBuilder();
ReadAccumulatorNamesRequest req1 = builder
.setStagesValue(2, 10)
.build();

assertNotNull(req1); */

UnitType.Builder build = UnitType.newBuilder();
UnitType req2 = ((Builder) build
.getDefaultInstanceForType()
.getField(null))
.build();

}

}

However, I am not really sure on the correct values to be passed while setting Enaums & Map data types.

Kindly suggest and guide me here

Jalaja Raj

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Jul 19, 2022, 7:40:00 AM7/19/22

to Protocol Buffers

Kindly share your thoughts/suggestions

David Jones

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Jul 19, 2022, 3:23:07 PM7/19/22

to Jalaja Raj, Protocol Buffers

I think I understand your example (there seem to be some things missing, or maybe some typos?).

For enums, you should stick to the enumerator objects if you can, e.g. (this is just a hypothetical example):

builder.setStage(E.INTEGER)

In proto3, you can also use the int value if you need to:

builder.setStageValue(1)