/// <summary>
/// Connect to user streams.
/// </summary>
/// <param name="accessor">API access preference</param>
/// <param name="parser">Line handler</param>
/// <param name="readTimeout">stream read timeout</param>
/// <param name="cancellationToken">cancellation token object</param>
/// <param name="tracksOrNull">tracks parameter(can be null)</param>
/// <param name="stallWarnings">request stall warnings</param>
/// <param name="filterLevel">stream filtering level</param>
/// <param name="repliesAll">repliesAll parameter</param>
/// <param name="followingsActivity">include_followings_activity parameter</param>
/// <returns></returns>
public static Task ConnectAsync([NotNull] IApiAccessor accessor,
[NotNull] Action <string> parser, TimeSpan readTimeout, CancellationToken cancellationToken,
[CanBeNull] IEnumerable <string> tracksOrNull = null, bool stallWarnings = false,
StreamFilterLevel filterLevel = StreamFilterLevel.None,
bool repliesAll = false, bool followingsActivity = false)
{
if (accessor == null)
{
throw new ArgumentNullException(nameof(accessor));
}
if (parser == null)
{
throw new ArgumentNullException(nameof(parser));
}
// remove empty string and remove duplicates, concatenate strings
var filteredTracks = tracksOrNull?.Select(t => t?.Trim())
.Where(t => !String.IsNullOrEmpty(t))
.Distinct()
.JoinString(",");
// build parameter
var param = new Dictionary <string, object>
{
{ "track", String.IsNullOrEmpty(filteredTracks) ? null : filteredTracks },
{ "stall_warnings", stallWarnings ? "true" : null },
{ "filter_level", filterLevel == StreamFilterLevel.None ? null : filterLevel.ToParamString() },
{ "replies", repliesAll ? "all" : null },
{ "include_followings_activity", followingsActivity ? "true" : null }
};
// begin connection
return(accessor.ConnectStreamAsync("user.json", param,
stream => StreamWinder.Run(stream, parser, readTimeout, cancellationToken),
cancellationToken));
}
/// <summary>
/// Connect to user streams.
/// </summary>
/// <param name="accessor">API access preference</param>
/// <param name="parser">Line handler</param>
/// <param name="readTimeout">stream read timeout</param>
/// <param name="cancellationToken">cancellation token object</param>
/// <param name="tracksOrNull">tracks parameter(can be null)</param>
/// <param name="stallWarnings">request stall warnings</param>
/// <param name="filterLevel">stream filtering level</param>
/// <param name="repliesAll">repliesAll parameter</param>
/// <param name="followingsActivity">include_followings_activity parameter</param>
/// <returns></returns>
public static async Task ConnectAsync([NotNull] ApiAccessor accessor,
[NotNull] Action<string> parser, TimeSpan readTimeout, CancellationToken cancellationToken,
[CanBeNull] IEnumerable<string> tracksOrNull = null, bool stallWarnings = false,
StreamFilterLevel filterLevel = StreamFilterLevel.None,
bool repliesAll = false, bool followingsActivity = false)
{
if (accessor == null) throw new ArgumentNullException(nameof(accessor));
if (parser == null) throw new ArgumentNullException(nameof(parser));
// remove empty string and remove duplicates, concat strings
var filteredTracks = tracksOrNull?.Select(t => t?.Trim())
.Where(t => !String.IsNullOrEmpty(t))
.Distinct()
.JoinString(",");
// bulid parameter
var param = new Dictionary<string, object>
{
{"track", String.IsNullOrEmpty(filteredTracks) ? null : filteredTracks},
{"stall_warnings", stallWarnings ? "true" : null},
{"filter_level", filterLevel == StreamFilterLevel.None ? null : filterLevel.ToParamString()},
{"replies", repliesAll ? "all" : null},
{"include_followings_activity", followingsActivity ? "true" : null}
}.ParametalizeForGet();
var endpoint = HttpUtility.ConcatUrl(accessor.Endpoint, "user.json");
// join parameters to endpoint URL
if (!String.IsNullOrEmpty(param))
{
endpoint += "?" + param;
}
// begin connection
HttpClient client = null;
try
{
// prepare HttpClient
client = accessor.GetClientForStreaming();
// set parameters for receiving UserStreams.
client.Timeout = Timeout.InfiniteTimeSpan;
// begin connection
using (var resp = await client.GetAsync(endpoint, HttpCompletionOption.ResponseHeadersRead,
cancellationToken).ConfigureAwait(false))
using (var stream = await resp.Content.ReadAsStreamAsync().ConfigureAwait(false))
{
// winding data from user stream
await StreamWinder.Run(stream, parser, readTimeout, cancellationToken).ConfigureAwait(false);
}
}
finally
{
if (client != null)
{
// cancel pending requests
client.CancelPendingRequests();
client.Dispose();
}
}
}
public UserStreamReceiver(ApiAccessor accessor, IStreamHandler handler)
{
_accessor = accessor;
_handler = handler;
ChangeState(StreamState.Disconnected);
// set default values to parameters
StallWarnings = true;
StreamFilterLevel = StreamFilterLevel.None;
_currentState = StreamState.Connected;
_backoffMode = BackoffMode.None;
_backoffWait = 0;
_hardErrorCount = 0;
}
public static string ToParamString(this StreamFilterLevel level)
{
switch (level)
{
case StreamFilterLevel.None:
return("none");
case StreamFilterLevel.Low:
return("low");
case StreamFilterLevel.Middle:
return("middle");
default:
throw new ArgumentOutOfRangeException(nameof(level), level, null);
}
}
