private static QueryParameter PopulateArrayParameter(QueryParameter parameter, object value, BigqueryParameterType?arrayType)
{
if (value == null)
{
throw new InvalidOperationException("The value of an array parameter cannot be null");
}
if (!IsArrayValue(value))
{
throw new InvalidOperationException($"Invalid value for array parameter: {value.GetType()}");
}
List <object> values = ((IEnumerable)value).Cast <object>().ToList();
if (values.Any(v => v == null))
{
throw new InvalidOperationException("Array parameter values cannot contain null elements");
}
BigqueryParameterType actualArrayType = arrayType ?? s_typeMapping[GetArrayElementType(value)];
parameter.ParameterType = new QueryParameterType
{
Type = EnumMap.ToApiValue(BigqueryParameterType.Array),
ArrayType = new QueryParameterType {
Type = EnumMap.ToApiValue(actualArrayType)
}
};
var parameterValues = values
.Select(p => new BigqueryParameter(actualArrayType, p).ToQueryParameter(BigqueryParameterMode.Positional).ParameterValue)
.ToList();
parameter.ParameterValue = new QueryParameterValue {
ArrayValues = parameterValues
};
return(parameter);
}
/// <summary>
/// If the value is null, populate the parameter with an QueryParameterValue. Otherwise,
/// throw an exception - this is expected to be the last call in a chain, so at this point we know
/// we can't handle a value of this type.
/// </summary>
internal static QueryParameter UseNullScalarOrThrow(this QueryParameter parameter, object value)
{
if (value == null)
{
parameter.ParameterValue = new QueryParameterValue();
return(parameter);
}
var clrEnum = EnumMap <BigqueryParameterType> .ToValue(parameter.ParameterType.Type);
throw new InvalidOperationException($"Value of type {value.GetType()} cannot be used for a parameter of type {clrEnum}");
}
/// <summary>
/// Creates a field with the specified details, and adds it to the schema being built.
/// </summary>
/// <param name="name">The name of the field. Must be a valid field name.</param>
/// <param name="type">The type of the field. Must be a defined member within <see cref="BigqueryDbType"/>, other than <c>Record</c>.</param>
/// <param name="mode">The mode of the field. Must be a defined member within <see cref="FieldMode"/>.</param>
/// <param name="description">The description of the field. May be null.</param>
public void Add(string name, BigqueryDbType type, FieldMode mode = FieldMode.Nullable, string description = null)
{
ValidateFieldName(name, nameof(name));
GaxRestPreconditions.CheckArgument(type != BigqueryDbType.Record, nameof(type), "Record fields must be specified with their schema");
Add(new TableFieldSchema
{
Name = name,
Type = EnumMap <BigqueryDbType> .ToApiValue(type, nameof(type)),
Mode = EnumMap <FieldMode> .ToApiValue(mode, nameof(mode)),
Description = description,
});
}
/// <summary>
/// Creates a nested field with the specified schema, and adds it to the schema being built.
/// </summary>
/// <param name="name">The name of the field. Must be a valid field name.</param>
/// <param name="nestedSchema">The schema for the nested field. Must not be null.</param>
/// <param name="mode">The mode of the field. Must be a defined member within <see cref="FieldMode"/>.</param>
/// <param name="description">The description of the field. May be null.</param>
public void Add(string name, TableSchema nestedSchema, FieldMode mode = FieldMode.Nullable, string description = null)
{
ValidateFieldName(name, nameof(name));
GaxRestPreconditions.CheckNotNull(nestedSchema, nameof(nestedSchema));
Add(new TableFieldSchema
{
Name = name,
Fields = nestedSchema.Fields,
Type = EnumMap <BigqueryDbType> .ToApiValue(BigqueryDbType.Record),
Mode = EnumMap <FieldMode> .ToApiValue(mode, nameof(mode)),
Description = description,
});
}
internal void ModifyRequest(JobConfigurationQuery query)
{
// Note: no validation of combinations (flatten results etc). Leave this to the server,
// to avoid restrictions getting out of date.
if (AllowLargeResults != null)
{
query.AllowLargeResults = AllowLargeResults;
}
if (CreateDisposition != null)
{
query.CreateDisposition = EnumMap.ToApiValue(CreateDisposition.Value);
}
if (DefaultDataset != null)
{
query.DefaultDataset = DefaultDataset;
}
if (DestinationTable != null)
{
query.DestinationTable = DestinationTable;
}
if (FlattenResults != null)
{
query.FlattenResults = FlattenResults;
}
if (MaximumBillingTier != null)
{
query.MaximumBillingTier = MaximumBillingTier;
}
if (MaximumBytesBilled != null)
{
query.MaximumBytesBilled = MaximumBytesBilled;
}
if (Priority != null)
{
query.Priority = EnumMap.ToApiValue(Priority.Value);
}
if (UseQueryCache != null)
{
query.UseQueryCache = UseQueryCache;
}
if (WriteDisposition != null)
{
query.WriteDisposition = EnumMap.ToApiValue(WriteDisposition.Value);
}
if (UseLegacySql != null)
{
query.UseLegacySql = UseLegacySql;
}
}
internal void ModifyConfiguration(JobConfigurationLoad loadRequest)
{
if (AllowUnknownFields != null)
{
loadRequest.IgnoreUnknownValues = AllowUnknownFields;
}
if (MaxBadRecords != null)
{
loadRequest.MaxBadRecords = MaxBadRecords;
}
if (CreateDisposition != null)
{
loadRequest.CreateDisposition = EnumMap <CreateDisposition> .ToApiValue(CreateDisposition.Value);
}
if (WriteDisposition != null)
{
loadRequest.WriteDisposition = EnumMap <WriteDisposition> .ToApiValue(WriteDisposition.Value);
}
}
internal void ModifyConfiguration(JobConfigurationLoad loadRequest)
{
if (SkipLeadingRows != null)
{
loadRequest.SkipLeadingRows = SkipLeadingRows;
}
if (Quote != null)
{
loadRequest.Quote = Quote;
}
if (AllowQuotedNewlines != null)
{
loadRequest.AllowQuotedNewlines = AllowQuotedNewlines;
}
if (AllowJaggedRows != null)
{
loadRequest.AllowJaggedRows = AllowJaggedRows;
}
if (FieldDelimiter != null)
{
loadRequest.FieldDelimiter = FieldDelimiter;
}
if (AllowTrailingColumns != null)
{
loadRequest.IgnoreUnknownValues = AllowTrailingColumns;
}
if (MaxBadRecords != null)
{
loadRequest.MaxBadRecords = MaxBadRecords;
}
if (CreateDisposition != null)
{
loadRequest.CreateDisposition = EnumMap.ToApiValue(CreateDisposition.Value);
}
if (WriteDisposition != null)
{
loadRequest.WriteDisposition = EnumMap.ToApiValue(WriteDisposition.Value);
}
// TODO: Encoding? Only UTF-8 and ISO-8859-1 are supported... unsure what to do with this.
}
internal QueryParameter ToQueryParameter(BigqueryParameterMode parameterMode)
{
if (parameterMode == BigqueryParameterMode.Named && string.IsNullOrEmpty(Name))
{
throw new InvalidOperationException("Unnamed parameters cannot be used in command using BigqueryParameterMode.Named");
}
var value = Value;
if (Type == null && value == null)
{
throw new InvalidOperationException("A null-valued parameter must have an explicitly specified type");
}
var type = Type ?? InferParameterType(value);
var parameter = new QueryParameter
{
Name = Name,
ParameterType = new QueryParameterType {
Type = EnumMap.ToApiValue(type)
},
};
switch (type)
{
case BigqueryParameterType.Array:
return(PopulateArrayParameter(parameter, value, ArrayType));
case BigqueryParameterType.Bool:
return(parameter.PopulateScalar <bool>(value, x => x ? "TRUE" : "FALSE")
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.Bytes:
return(parameter.PopulateScalar <byte[]>(value, x => Convert.ToBase64String(x))
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.Date:
return(parameter.PopulateScalar <DateTime>(value, x => x.ToString("yyyy-MM-dd", InvariantCulture))
?? parameter.PopulateScalar <DateTimeOffset>(value, x => x.ToString("yyyy-MM-dd", InvariantCulture))
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.DateTime:
return(parameter.PopulateScalar <DateTime>(value, x => x.ToString("yyyy-MM-dd HH:mm:ss.FFFFFF", InvariantCulture))
?? parameter.PopulateScalar <DateTimeOffset>(value, x => x.ToString("yyyy-MM-dd HH:mm:ss.FFFFFF", InvariantCulture))
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.Float64:
return(parameter.PopulateInteger(value)
?? parameter.PopulateFloatingPoint(value)
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.Int64:
return(parameter.PopulateInteger(value)
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.String:
return(parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.Struct: throw new NotImplementedException("Struct parameters are not yet implemented");
case BigqueryParameterType.Time:
return(parameter.PopulateScalar <TimeSpan>(value, FormatTimeSpan)
?? parameter.PopulateScalar <DateTimeOffset>(value, x => x.ToString("HH:mm:ss.FFFFFF", InvariantCulture))
?? parameter.PopulateScalar <DateTime>(value, x => x.ToString("HH:mm:ss.FFFFFF", InvariantCulture))
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
case BigqueryParameterType.Timestamp:
return(parameter.PopulateScalar <DateTime>(value, x =>
{
if (x.Kind != DateTimeKind.Utc)
{
throw new InvalidOperationException($"A DateTime with a Kind of {x.Kind} cannot be used for a Timestamp parameter");
}
return x.ToString("yyyy-MM-dd HH:mm:ss.FFFFFF");
})
?? parameter.PopulateScalar <DateTimeOffset>(value, x => x.ToString("yyyy-MM-dd HH:mm:ss.FFFFFFzzz", InvariantCulture))
?? parameter.PopulateScalar <string>(value, x => x)
?? parameter.UseNullScalarOrThrow(value));
default: throw new InvalidOperationException($"No conversion available for parameter type {type}");
}
}
internal static string ToApiValue <T>(T value, string paramName = "value") where T : struct => EnumMap <T> .ToApiValue(value, paramName);
/// <summary> /// Returns the mode of a field as a <see cref="FieldMode"/>. /// </summary> internal static FieldMode GetFieldMode(this TableFieldSchema field) => EnumMap <FieldMode> .ToValue(field.Mode);
/// <summary> /// Returns the type of a field as a <see cref="BigqueryDbType"/>. /// </summary> internal static BigqueryDbType GetFieldType(this TableFieldSchema field) => EnumMap <BigqueryDbType> .ToValue(field.Type);
