public QueryParameters(
string schemaIdentifier,
string path,
IPaginationParameters paginationParameters)
: this(schemaIdentifier, path, Array.Empty <IFilter>(), Array.Empty <string>(), Array.Empty <string>())
{
this.PaginationParameters = paginationParameters ?? throw new ArgumentNullException(nameof(paginationParameters));
}
public virtual async Task <QueryResponseBase> Query(
HttpRequestMessage request,
IReadOnlyCollection <IFilter> filters,
IReadOnlyCollection <string> requestedAttributePaths,
IReadOnlyCollection <string> excludedAttributePaths,
IPaginationParameters paginationParameters,
string correlationIdentifier)
{
if (null == request)
{
throw new ArgumentNullException(nameof(request));
}
if (null == requestedAttributePaths)
{
throw new ArgumentNullException(nameof(requestedAttributePaths));
}
if (null == excludedAttributePaths)
{
throw new ArgumentNullException(nameof(excludedAttributePaths));
}
if (string.IsNullOrWhiteSpace(correlationIdentifier))
{
throw new ArgumentNullException(nameof(correlationIdentifier));
}
string path = this.GetPath(request);
IQueryParameters queryParameters =
new QueryParameters(this.SchemaIdentifier, path, filters, requestedAttributePaths, excludedAttributePaths);
queryParameters.PaginationParameters = paginationParameters;
IReadOnlyCollection <IExtension> extensions = this.ReadExtensions();
IRequest <IQueryParameters> queryRequest =
new QueryRequest(request, queryParameters, correlationIdentifier, extensions);
QueryResponseBase result = await this.Provider.PaginateQueryAsync(queryRequest).ConfigureAwait(false);
return(result);
}
private void ApplyPaginationParameter(
string value,
Action <IPaginationParameters, int> action)
{
if (null == action)
{
throw new ArgumentNullException(nameof(action));
}
if (string.IsNullOrWhiteSpace(value))
{
return;
}
int parsedValue = int.Parse(value, CultureInfo.InvariantCulture);
if (null == this.PaginationParameters)
{
this.PaginationParameters = new PaginationParameters();
}
action(this.PaginationParameters, parsedValue);
}
public static IEnumerable <T> AddPaginationToQuery <T>(this IEnumerable <T> query, IPaginationParameters pagination)
{
if (pagination != null)
{
query = query.Skip(pagination.Offset).Take(pagination.MaximumRecords);
}
return(query);
}
