TryFromStatusValueDictionary
(
Dictionary <String, Object> statusValueDictionary,
Boolean expandStatusUrls,
out TwitterStatus twitterStatus
)
{
Debug.Assert(statusValueDictionary != null);
twitterStatus = null;
// Get the status information.
String statusID, statusText;
if (
!TwitterJsonUtil.TryGetJsonValueFromDictionary(
statusValueDictionary, "id_str", out statusID)
||
!TwitterJsonUtil.TryGetJsonValueFromDictionary(
statusValueDictionary, "text", out statusText)
)
{
return(false);
}
String statusDateUtc;
if (TwitterJsonUtil.TryGetJsonValueFromDictionary(
statusValueDictionary, "created_at", out statusDateUtc))
{
statusDateUtc = TwitterDateParser.ParseTwitterDate(statusDateUtc);
}
String latitude, longitude;
TwitterGraphMLUtil.GetLatitudeAndLongitudeFromStatusValueDictionary(
statusValueDictionary, out latitude, out longitude);
String statusUrls, statusHashtags;
TwitterGraphMLUtil.GetUrlsAndHashtagsFromStatusValueDictionary(
statusValueDictionary, expandStatusUrls, out statusUrls,
out statusHashtags);
String inReplyToStatusID;
TwitterJsonUtil.TryGetJsonValueFromDictionary(
statusValueDictionary, "in_reply_to_status_id_str",
out inReplyToStatusID);
// Note that null date, coordinates, URLs hashtags, and in-reply-to-ID
// are acceptable here.
twitterStatus = new TwitterStatus(
statusID, statusText, statusDateUtc, latitude, longitude,
statusUrls, statusHashtags, inReplyToStatusID);
return(true);
}
AppendValueFromValueDictionary
(
Dictionary <String, Object> valueDictionary,
String name,
GraphMLXmlDocument graphMLXmlDocument,
XmlNode edgeOrVertexXmlNode,
String graphMLAttributeID
)
{
Debug.Assert(valueDictionary != null);
Debug.Assert(!String.IsNullOrEmpty(name));
Debug.Assert(graphMLXmlDocument != null);
Debug.Assert(edgeOrVertexXmlNode != null);
Debug.Assert(!String.IsNullOrEmpty(graphMLAttributeID));
String value;
if (TwitterJsonUtil.TryGetJsonValueFromDictionary(
valueDictionary, name, out value))
{
graphMLXmlDocument.AppendGraphMLAttributeValue(
edgeOrVertexXmlNode, graphMLAttributeID, value);
return(true);
}
return(false);
}
AppendUserStatisticsFromValueDictionary
(
Dictionary <String, Object> userValueDictionary,
GraphMLXmlDocument graphMLXmlDocument,
TwitterUser twitterUser
)
{
Debug.Assert(userValueDictionary != null);
Debug.Assert(graphMLXmlDocument != null);
Debug.Assert(twitterUser != null);
XmlNode vertexXmlNode = twitterUser.VertexXmlNode;
AppendValueFromValueDictionary(userValueDictionary,
"friends_count", graphMLXmlDocument, vertexXmlNode,
VertexFollowedID);
AppendValueFromValueDictionary(userValueDictionary,
"followers_count", graphMLXmlDocument, vertexXmlNode,
VertexFollowersID);
AppendValueFromValueDictionary(userValueDictionary,
"statuses_count", graphMLXmlDocument, vertexXmlNode,
VertexStatusesID);
AppendValueFromValueDictionary(userValueDictionary,
"favourites_count", graphMLXmlDocument, vertexXmlNode,
VertexFavoritesID);
AppendValueFromValueDictionary(userValueDictionary,
"description", graphMLXmlDocument, vertexXmlNode,
VertexDescriptionID);
AppendValueFromValueDictionary(userValueDictionary,
"location", graphMLXmlDocument, vertexXmlNode,
VertexLocationID);
AppendValueFromValueDictionary(userValueDictionary,
"url", graphMLXmlDocument, vertexXmlNode,
VertexUrlID);
AppendValueFromValueDictionary(userValueDictionary,
"time_zone", graphMLXmlDocument, vertexXmlNode,
VertexTimeZoneID);
AppendValueFromValueDictionary(userValueDictionary,
"utc_offset", graphMLXmlDocument, vertexXmlNode,
VertexUtcOffsetID);
String joinedDateUtc;
if (TwitterJsonUtil.TryGetJsonValueFromDictionary(userValueDictionary,
"created_at", out joinedDateUtc))
{
graphMLXmlDocument.AppendGraphMLAttributeValue(
vertexXmlNode, VertexJoinedDateUtcID,
TwitterDateParser.ParseTwitterDate(joinedDateUtc));
}
}
TryGetUserIDFromDictionary
(
Dictionary <String, Object> oUserValueDictionary,
out String sUserID
)
{
Debug.Assert(oUserValueDictionary != null);
AssertValid();
return(TwitterJsonUtil.TryGetJsonValueFromDictionary(
oUserValueDictionary, "id_str", out sUserID));
}
TryAppendVertexXmlNode
(
Dictionary <String, Object> userValueDictionary,
Boolean userTweetedSearchTerm,
GraphMLXmlDocument graphMLXmlDocument,
Dictionary <String, TwitterUser> userIDDictionary,
out TwitterUser twitterUser
)
{
Debug.Assert(userValueDictionary != null);
Debug.Assert(graphMLXmlDocument != null);
Debug.Assert(userIDDictionary != null);
twitterUser = null;
String screenName, userID;
if (
!TwitterJsonUtil.TryGetJsonValueFromDictionary(userValueDictionary,
"screen_name", out screenName)
||
!TwitterJsonUtil.TryGetJsonValueFromDictionary(userValueDictionary,
"id_str", out userID)
)
{
return(false);
}
screenName = screenName.ToLower();
Boolean isFirstTweetForAuthor =
TwitterGraphMLUtil.TryAppendVertexXmlNode(
screenName, userID, graphMLXmlDocument, userIDDictionary,
out twitterUser);
if (isFirstTweetForAuthor)
{
TwitterGraphMLUtil.AppendCommonUserInformationFromValueDictionary(
userValueDictionary, graphMLXmlDocument, twitterUser);
TwitterGraphMLUtil.AppendUserStatisticsFromValueDictionary(
userValueDictionary, graphMLXmlDocument, twitterUser);
AppendTweetedSearchTermGraphMLAttributeValue(
graphMLXmlDocument, twitterUser, userTweetedSearchTerm);
}
return(true);
}
GetLatitudeAndLongitudeFromStatusValueDictionary
(
Dictionary <String, Object> statusValueDictionary,
out String latitude,
out String longitude
)
{
Debug.Assert(statusValueDictionary != null);
Object geoAsObject;
if (
statusValueDictionary.TryGetValue("geo", out geoAsObject)
&&
geoAsObject is Dictionary <String, Object>
)
{
Dictionary <String, Object> geoValueDictionary =
(Dictionary <String, Object>)geoAsObject;
Object coordinatesAsObject;
if (
geoValueDictionary.TryGetValue("coordinates",
out coordinatesAsObject)
&&
coordinatesAsObject is Object[]
)
{
Object [] coordinates = ( Object[] )coordinatesAsObject;
if (coordinates.Length == 2)
{
TwitterJsonUtil.TryConvertJsonValueToString(
coordinates[0], out latitude);
TwitterJsonUtil.TryConvertJsonValueToString(
coordinates[1], out longitude);
return;
}
}
}
latitude = longitude = null;
}
TryGetScreenNameFromDictionary
(
Dictionary <String, Object> oUserValueDictionary,
out String sScreenName
)
{
Debug.Assert(oUserValueDictionary != null);
AssertValid();
if (TwitterJsonUtil.TryGetJsonValueFromDictionary(
oUserValueDictionary, "screen_name", out sScreenName))
{
sScreenName = sScreenName.ToLower();
return(true);
}
return(false);
}
EnumerateFriendOrFollowerIDs
(
String sScreenName,
Boolean bEnumerateFriendIDs,
Int32 iMaximumPeoplePerRequest,
RequestStatistics oRequestStatistics
)
{
Debug.Assert(!String.IsNullOrEmpty(sScreenName));
Debug.Assert(iMaximumPeoplePerRequest > 0);
Debug.Assert(oRequestStatistics != null);
AssertValid();
String sUrl = String.Format(
"{0}{1}.json?screen_name={2}"
,
TwitterApiUrls.Rest,
bEnumerateFriendIDs ? "friends/ids" : "followers/ids",
TwitterUtil.EncodeUrlParameter(sScreenName)
);
// The JSON looped through here has an "ids" name whose value is an
// array of integer IDs.
foreach (Object oUserIDAsObject in EnumerateJsonValues(
sUrl, "ids", iMaximumPeoplePerRequest, true, oRequestStatistics))
{
String sUserID;
if (TwitterJsonUtil.TryConvertJsonValueToString(
oUserIDAsObject, out sUserID))
{
yield return(sUserID);
}
}
}
