public async Task <IExistsResult> ExistsAsync(string id, ExistsOptions options)
{
using (var existsOp = new Observe
{
Key = id,
Cid = Cid
})
{
try
{
await ExecuteOp(existsOp, options.Token, options.Timeout);
var value = existsOp.GetValue();
return(new ExistsResult
{
Exists = existsOp.Success && value.KeyState != KeyState.NotFound &&
value.KeyState != KeyState.LogicalDeleted,
Cas = value.Cas,
Expiration = TimeSpan.FromMilliseconds(existsOp.Expires)
});
}
catch (KeyNotFoundException)
{
return(new ExistsResult
{
Exists = false
});
}
}
}
public Task <IExistsResult> Exists(string id, Action <ExistsOptions> optionsAction)
{
var options = new ExistsOptions();
optionsAction(options);
return(Exists(id, options));
}
public Task <IExistsResult> Exists(string id, Action <ExistsOptions> configureOptions)
{
var options = new ExistsOptions();
configureOptions?.Invoke(options);
return(Exists(id, options));
}
public static Task <IExistsResult> ExistsAsync(this ICollection collection, string id,
Action <ExistsOptions> configureOptions)
{
var options = new ExistsOptions();
configureOptions?.Invoke(options);
return(collection.ExistsAsync(id, options));
}
public Task <IExistsResult> Exists(string id, TimeSpan?timeout = null, CancellationToken token = default(CancellationToken))
{
var options = new ExistsOptions
{
Timeout = timeout,
Token = token
};
return(Exists(id, options));
}
