/// <summary>
/// Executes a query adding to the passed collection.
/// </summary>
/// <typeparam name="TColl">The collection <see cref="Type"/>.</typeparam>
/// <param name="coll">The collection to add items to.</param>
/// <remarks>The <see cref="QueryArgs"/> <see cref="ODataArgs{T, TModel}.Paging"/> is also applied, including <see cref="PagingArgs.IsGetCount"/> where requested.</remarks>
public void SelectQuery <TColl>(TColl coll) where TColl : ICollection <T>
{
ExecuteQuery(q =>
{
ODataFeedAnnotations ann = null !;
if (QueryArgs.Paging != null)
{
q = q.Skip(QueryArgs.Paging.Skip).Top(QueryArgs.Paging.Take);
if (QueryArgs.Paging.IsGetCount && _odata.IsPagingGetCountSupported)
{
ann = new ODataFeedAnnotations();
}
}
foreach (var item in q.FindEntriesAsync(ann).GetAwaiter().GetResult())
{
coll.Add(ODataBase.GetValue(QueryArgs, item));
}
if (ann != null)
{
QueryArgs.Paging !.TotalCount = ann.Count;
}
});
}
/// <summary>
/// Batches an <b>execute</b> of an <b>OData</b> request for a specified <paramref name="pathAndQuery"/> using a <see cref="JObject"/> for the request and response.
/// </summary>
/// <param name="exeArgs">The <see cref="ODataArgs"/>.</param>
/// <param name="pathAndQuery">The url path and query <see cref="string"/> (excluding the base URI path).</param>
/// <param name="json">Optional JSON request content.</param>
/// <returns>The <see cref="ODataBatchItem"/>.</returns>
/// <remarks>The <see cref="HttpMethod"/> defaults to a <see cref="HttpMethod.Post"/>. This is overridden using the <see cref="ODataArgs.OverrideHttpMethod"/>.</remarks>
public async Task <ODataBatchItem> ExecuteAsync(ODataArgs exeArgs, string pathAndQuery, JObject json)
{
var obi = AddRequest(await OData.BuildExecuteRequestAsync(exeArgs, pathAndQuery, json).ConfigureAwait(false));
obi.GetValueFunc = async() => await ODataBase.ProcessExecuteResponseAsync(obi.ResponseMessage, exeArgs).ConfigureAwait(false);
return(obi);
}
/// <summary>
/// Selects first item.
/// </summary>
/// <returns>The first item.</returns>
public T SelectFirst()
{
return(ODataBase.GetValue(QueryArgs, ExecuteQuery(q =>
{
var coll = q.Skip(0).Top(1).FindEntriesAsync().GetAwaiter().GetResult();
return coll.First();
})));
}
/// <summary>
/// Selects a single item or default.
/// </summary>
/// <returns>The single item or default.</returns>
public T?SelectSingleOrDefault()
{
return(ODataBase.GetValue <T, TModel>(QueryArgs, ExecuteQuery(q =>
{
var coll = q.Skip(0).Top(2).FindEntriesAsync().GetAwaiter().GetResult();
return coll.SingleOrDefault();
})));
}
/// <summary>
/// Initializes a new instance of the <see cref="ODataBatchManager"/> class.
/// </summary>
/// <param name="odata">The <see cref="ODataBase"/>.</param>
/// <param name="isChangeSet">Indicates whether the batch is a change set (an atomic unit of work).</param>
internal ODataBatchManager(ODataBase odata, bool isChangeSet = false)
{
OData = odata ?? throw new ArgumentNullException(nameof(odata));
IsChangeSet = isChangeSet;
}
/// <summary>
/// Initializes a new instance of the <see cref="ODataQueryable{T}"/> class.
/// </summary>
/// <param name="odata">The <see cref="ODataBase"/>.</param>
/// <param name="queryArgs">The <see cref="ODataArgs"/>.</param>
/// <param name="executor">The <see cref="IQueryExecutor"/>.</param>
public ODataQueryable(ODataBase odata, ODataArgs queryArgs, ref IQueryExecutor executor)
: base(QueryParser.CreateDefault(), CreateExecutor(odata, queryArgs, ref executor))
{
QueryExecutor = (ODataQueryExecutor)executor;
}
/// <summary>
/// Creates a new <see cref="ODataQueryExecutor"/>.
/// </summary>
private static IQueryExecutor CreateExecutor(ODataBase odata, ODataArgs queryArgs, ref IQueryExecutor executor)
{
return(executor = new ODataQueryExecutor(odata, queryArgs));
}
/// <summary>
/// Initializes a new instance of the <see cref="ODataQuery{T, TModel}"/> class.
/// </summary>
/// <param name="odata">The <see cref="ODataBase"/>.</param>
/// <param name="queryArgs">The <see cref="ODataArgs{T, TModel}"/>.</param>
/// <param name="query">A function to modify the underlying <see cref="IQueryable{TModel}"/></param>
internal ODataQuery(ODataBase odata, ODataArgs <T, TModel> queryArgs, Func <IBoundClient <TModel>, IBoundClient <TModel> >?query = null)
{
_odata = Check.NotNull(odata, nameof(odata));
QueryArgs = Check.NotNull(queryArgs, nameof(queryArgs));
_query = query;
}