public static BatchGetItemResult FromJsonElement(JsonElement json)
{
// TODO: ConsumedCapacity
IReadOnlyList <TableItemCollection> responses;
if (json.TryGetProperty("Responses", out JsonElement responsesNode))
{
var collections = new List <TableItemCollection>();
foreach (var tableEl in responsesNode.EnumerateObject()) // table elements
{
var table = new TableItemCollection(tableEl.Name);
foreach (JsonElement item in tableEl.Value.EnumerateArray())
{
table.Add(AttributeCollection.FromJsonElement(item));
}
collections.Add(table);
}
responses = collections;
}
else
{
responses = Array.Empty <TableItemCollection>();
}
// TODO: UnprocessedKeys
return(new BatchGetItemResult(responses));
}
public async Task <IReadOnlyList <T> > FindAllAsync(params IEnumerable <KeyValuePair <string, object> >[] keys)
{
if (keys is null || keys.Length == 0)
{
return(Array.Empty <T>());
}
var request = new BatchGetItemRequest(new TableKeys(tableName, keys));
var result = await client.BatchGetItemAsync(request).ConfigureAwait(false);
TableItemCollection r0 = result.Responses[0];
var items = new T[r0.Count];
for (int i = 0; i < items.Length; i++)
{
items[i] = r0[i].As <T>(metadata);
}
return(items);
}
public static BatchGetItemResult FromJson(JsonObject json)
{
// var items = new List<AttributeCollection>();
if (json.TryGetValue("ConsumedCapacity", out var consumedCapacityNode)) // Array
{
foreach (var item in (JsonArray)consumedCapacityNode)
{
var unit = item.As <ConsumedCapacity>();
// TODO
}
}
TableItemCollection[] responses;
if (json.TryGetValue("Responses", out var responsesNode))
{
var tableElements = (JsonObject)responsesNode;
var collections = new TableItemCollection[tableElements.Keys.Count];
int i = 0;
foreach (var tableEl in tableElements)
{
var table = new TableItemCollection(tableEl.Key);
foreach (var item in (JsonArray)tableEl.Value)
{
table.Add(AttributeCollection.FromJson((JsonObject)item));
}
collections[i] = table;
i++;
}
responses = collections;
}
else
{
responses = Array.Empty <TableItemCollection>();
}
/*
* if (json.TryGetValue("UnprocessedKeys", out var unprocessedKeysNode))
* {
* var unprocessedKeys = new List<TableKeys>();
*
* foreach (var tableEl in (JsonObject)unprocessedKeysNode)
* {
* var tableName = tableEl.Key;
*
* foreach (var keyEl in (XArray) tableEl.Value["Keys"])
* {
* var attributes = new KeyValuePair<string, object>();
*
* foreach (var prop in (JsonObject)keyEl)
* {
* var name = prop.Key;
* var value = DbValue.FromJson((JsonObject)prop.Value);
* }
*
* var key = new Key(attributes);
* }
* }
* }
*/
return(new BatchGetItemResult(responses));
}
