public static string GetRoomTwinUpdatePayload()
{
var uou = new UpdateOperationsUtility();
uou.AppendAddOp("/Humidity", 30);
uou.AppendReplaceOp("/Temperature", 70);
uou.AppendRemoveOp("/EmployeeId");
return(RemoveNewLines(uou.Serialize()));
}
public void UpdateOperationsUtility_BuildAdd()
{
// arrange
const string addOp = "add";
const string replaceOp = "replace";
const string removeOp = "remove";
const string addPath = "/addComponentPath123";
const string addValue = "value123";
const string replacePath = "/replaceComponentPath123";
const string replaceValue = "value456";
const string removePath = "/removeComponentPath123";
var dtUpdateUtility = new UpdateOperationsUtility();
dtUpdateUtility.AppendAddOp(addPath, addValue);
dtUpdateUtility.AppendReplaceOp(replacePath, replaceValue);
dtUpdateUtility.AppendRemoveOp(removePath);
// act
string actual = dtUpdateUtility.Serialize();
// assert
JsonDocument parsed = JsonDocument.Parse(actual);
parsed.RootElement.ValueKind.Should().Be(JsonValueKind.Array, "operations should be nested in an array");
parsed.RootElement.GetArrayLength().Should().Be(3, "three operations were included");
JsonElement addElement = parsed.RootElement[0];
addElement.GetProperty("op").GetString().Should().Be(addOp);
addElement.GetProperty("path").GetString().Should().Be(addPath);
addElement.GetProperty("value").GetString().Should().Be(addValue);
JsonElement replaceElement = parsed.RootElement[1];
replaceElement.GetProperty("op").GetString().Should().Be(replaceOp);
replaceElement.GetProperty("path").GetString().Should().Be(replacePath);
replaceElement.GetProperty("value").GetString().Should().Be(replaceValue);
JsonElement removeElement = parsed.RootElement[2];
removeElement.GetProperty("op").GetString().Should().Be(removeOp);
removeElement.GetProperty("path").GetString().Should().Be(removePath);
removeElement.TryGetProperty("value", out _).Should().BeFalse();
}
private async Task UpdateCurrentTemperaturePropertyAsync()
{
// Choose a random value to assign to the currentTemperature property
int currentTemperature = Random.Next(0, 100);
const string currentTemperaturePropertyName = "currentTemperature";
var updateOperation = new UpdateOperationsUtility();
// First, add the property to the digital twin
updateOperation.AppendAddPropertyOp($"/{currentTemperaturePropertyName}", currentTemperature);
_logger.LogDebug($"Add the {currentTemperaturePropertyName} property on the {_digitalTwinId} digital twin " +
$"with a value of {currentTemperature}.");
HttpOperationHeaderResponse <DigitalTwinUpdateHeaders> addPropertyToDigitalTwinResponse = await _digitalTwinClient
.UpdateDigitalTwinAsync(_digitalTwinId, updateOperation.Serialize());
_logger.LogDebug($"Update {_digitalTwinId} digital twin response: {addPropertyToDigitalTwinResponse.Response.StatusCode}.");
// Print the Thermostat digital twin
await GetAndPrintDigitalTwinAsync <ThermostatTwin>();
// Second, replace the property to a different value
int newCurrentTemperature = Random.Next(0, 100);
updateOperation.AppendReplacePropertyOp($"/{currentTemperaturePropertyName}", newCurrentTemperature);
_logger.LogDebug($"Replace the {currentTemperaturePropertyName} property on the {_digitalTwinId} digital twin " +
$"with a value of {newCurrentTemperature}.");
HttpOperationHeaderResponse <DigitalTwinUpdateHeaders> replacePropertyInDigitalTwinResponse = await _digitalTwinClient
.UpdateDigitalTwinAsync(_digitalTwinId, updateOperation.Serialize());
_logger.LogDebug($"Update {_digitalTwinId} digital twin response: {replacePropertyInDigitalTwinResponse.Response.StatusCode}.");
// Print the Thermostat digital twin
await GetAndPrintDigitalTwinAsync <ThermostatTwin>();
// Third, remove the currentTemperature property
updateOperation.AppendRemoveOp($"/{currentTemperaturePropertyName}");
_logger.LogDebug($"Remove the {currentTemperaturePropertyName} property on the {_digitalTwinId} digital twin.");
HttpOperationHeaderResponse <DigitalTwinUpdateHeaders> removePropertyInDigitalTwinResponse = await _digitalTwinClient
.UpdateDigitalTwinAsync(_digitalTwinId, updateOperation.Serialize());
_logger.LogDebug($"Update {_digitalTwinId} digital twin response: {removePropertyInDigitalTwinResponse.Response.StatusCode}.");
// Print the Thermostat digital twin
await GetAndPrintDigitalTwinAsync <ThermostatTwin>();
}
public void UpdateUtilityAppendsRemoveOp()
{
var op = new UpdateOperationsUtility();
string path = "testPath";
op.AppendRemoveOp(path);
string operations = op.Serialize();
// There should be a single operation added.
var jArray = JArray.Parse(operations);
jArray.Count.Should().Be(1);
// The patch operation added should be a "remove" operation.
JToken jObject = jArray.First;
jObject.Value <string>(Op).Should().Be(Remove);
}
