/// <summary>Note: This method requires Newtonsoft Json to be installed</summary>
/// <returns></returns>
private bool ExtractJson()
{
//Interpret the JSON - Basically read in a level at a time.
var dataFromWiki = JObject.Parse(Content);
var entities = ( JObject )dataFromWiki["entities"];
var entity = entities.Properties().First(); // Name is variable, so grab data by using first method
var entityKey = entity.Name;
var entityData = ( JObject )entity.Value;
if (entityKey == "-1")
{
WikidataExtractErrors.NotWikidata();
return(false);
}
var qcode = ( string )entityData["id"];
Fields.ID = Convert.ToInt32(qcode.Substring(1));
var entityType = ( string )entityData["type"];
if (entityType == null)
{
WikidataExtractErrors.QcodeNotExist(entityKey);
return(false);
}
var descriptions = ( JObject )entityData["descriptions"];
var labels = ( JObject )entityData["labels"];
var wikipediaLinks = ( JObject )entityData["sitelinks"];
if (labels != null)
{
foreach (var labelData in labels.Properties().Select(label => ( JObject )label.Value))
{
this.Fields.Labels.Add(( string )labelData["language"], ( string )labelData["value"]);
}
}
if (descriptions != null)
{
foreach (var description in descriptions.Properties())
{
var descriptionData = ( JObject )description.Value;
var key = ( string )descriptionData["language"];
Fields.Description.Add(key, ( string )descriptionData["value"]);
}
}
if (wikipediaLinks != null)
{
foreach (var wikipediaLinkData in wikipediaLinks.Properties().Select(wikipediaLink => ( JObject )wikipediaLink.Value))
{
this.Fields.WikipediaLinks.Add(( string )wikipediaLinkData["site"], ( string )wikipediaLinkData["title"]);
}
}
var claims = ( JObject )entityData["claims"];
if (claims == null)
{
return(true);
}
//Now we get to loop through each claim property for that article
foreach (var claim in claims.Properties())
{
var claimKey = claim.Name;
if (Array.IndexOf(this.ClaimsRequired, claimKey) == -1)
{
continue;
}
var claimData = ( JArray )claim.Value;
for (var thisClaim = 0; thisClaim < claimData.Count(); thisClaim++)
{
//claimData is an array - another loop
var thisClaimData = new WikidataClaim();
var mainSnak = ( JObject )claimData[thisClaim]["mainsnak"];
var snakType = ( string )mainSnak["snaktype"];
var snakDataType = ( string )mainSnak["datatype"];
var snakDataValue = ( JObject )mainSnak["datavalue"];
if (snakType == "novalue" || snakType == "somevalue")
{
thisClaimData.ValueAsString = snakType;
}
else
{
switch (snakDataType)
{
case "string":
case "commonsMedia":
case "url":
thisClaimData.ValueAsString = ( string )snakDataValue["value"];
break;
case "wikibase-item":
{
var objectValue = ( JObject )snakDataValue["value"];
thisClaimData.Qcode = ( int )objectValue["numeric-id"];
thisClaimData.ValueAsString = this._cache.RetrieveLabel(thisClaimData.Qcode);
}
break;
case "time":
{
var objectValue = ( JObject )snakDataValue["value"];
var valueTime = ( string )objectValue["time"];
var valueTimePrecision = ( string )objectValue["precision"];
var valueTimeCalendarModel = ( string )objectValue["calendarmodel"];
var julian = false;
var gregorian = false;
if (valueTimeCalendarModel != "http://www.Wikidata.org/entity/Q1985727")
{
gregorian = true;
}
if (valueTimeCalendarModel == "http://www.Wikidata.org/entity/Q1985786")
{
julian = true;
}
if (valueTimePrecision == "11" || valueTimePrecision == "10" || valueTimePrecision == "9" || valueTimePrecision == "8" || valueTimePrecision == "7" || valueTimePrecision == "6")
{
var dateStart = valueTime.IndexOf("-", 2) - 4;
var thisDateString = (valueTime.Substring(dateStart, 10));
thisDateString = thisDateString.Replace("-00", "-01"); // Occasionally get 1901-00-00 ?
var validDate = true;
DateTime thisDate;
try {
thisDate = DateTime.Parse(thisDateString, null, DateTimeStyles.RoundtripKind);
}
catch {
thisDate = DateTime.MinValue;
validDate = false;
}
if (julian && valueTimePrecision == "11")
{
// All dates will be Gregorian Julian flag tells us to
// display Julian date. JulianCalendar JulCal = new
// JulianCalendar(); DateTime dta =
// JulCal.ToDateTime(thisDate.Year, thisDate.Month,
// thisDate.Day, 0, 0, 0, 0); thisDate = dta;
}
var precision = DatePrecision.Null;
if (validDate == false)
{
precision = DatePrecision.Invalid;
}
else if (valueTime.Substring(0, 1) == "+")
{
switch (valueTimePrecision)
{
case "11":
precision = DatePrecision.Day;
break;
case "10":
precision = DatePrecision.Month;
break;
case "9":
precision = DatePrecision.Year;
break;
case "8":
precision = DatePrecision.Decade;
break;
case "7":
precision = DatePrecision.Century;
break;
case "6":
precision = DatePrecision.Millenium;
break;
}
}
else
{
precision = DatePrecision.Bce;
}
thisClaimData.ValueAsDateTime.ThisDate = thisDate;
thisClaimData.ValueAsDateTime.ThisPrecision = precision;
}
}
break;
case "monolingualtext":
{
var objectValue = ( JObject )snakDataValue["value"];
var valueText = ( string )objectValue["text"];
var valueLanguage = ( string )objectValue["language"];
// TODO Multi language handling
thisClaimData.ValueAsString = valueText + "(" + valueLanguage + ")";
}
break;
case "quantity":
{
var objectValue = ( JObject )snakDataValue["value"];
var valueAmount = ( string )objectValue["amount"];
var valueUnit = ( string )objectValue["unit"];
var valueUpper = ( string )objectValue["upperBound"];
var valueLower = ( string )objectValue["lowerBound"];
thisClaimData.ValueAsString = "(" + valueLower + " to " + valueUpper + ") Unit " + valueUnit;
}
break;
}
}
this.Fields.Claims.Add(new KeyValuePair <int, WikidataClaim>(Convert.ToInt32(claimKey.Substring(1)), thisClaimData));
}
}
return(true);
}
/// <summary>
/// Note: This method requires Newtonsoft Json to be installed
/// </summary>
/// <returns></returns>
private bool ExtractJSON()
{
//Interpret the JSON - Basically read in a level at a time.
var DataFromWiki = JObject.Parse(Content);
var Entities = (JObject)DataFromWiki["entities"];
var Entity = Entities.Properties().First(); // Name is variable, so grab data by using first method
string EntityKey = Entity.Name;
var EntityData = (JObject)Entity.Value;
if (EntityKey == "-1")
{
WikidataExtractErrors.NotWikidata();
return(false);
}
string Qcode = (string)EntityData["id"];
Fields.Id = Convert.ToInt32(Qcode.Substring(1));
string EntityType = (string)EntityData["type"];
if (EntityType == null)
{
WikidataExtractErrors.QcodeNotExist(EntityKey);
return(false);
}
var Descriptions = (JObject)EntityData["descriptions"];
var Labels = (JObject)EntityData["labels"];
var WikipediaLinks = (JObject)EntityData["sitelinks"];
if (Labels != null)
{
foreach (var Label in Labels.Properties())
{
var LabelData = (JObject)Label.Value;
Fields.Labels.Add((string)LabelData["language"], (string)LabelData["value"]);
}
}
if (Descriptions != null)
{
foreach (var Description in Descriptions.Properties())
{
var DescriptionData = (JObject)Description.Value;
string l = (string)DescriptionData["language"];
Fields.Description.Add((string)DescriptionData["language"], (string)DescriptionData["value"]);
}
}
if (WikipediaLinks != null)
{
foreach (var WikipediaLink in WikipediaLinks.Properties())
{
var WikipediaLinkData = (JObject)WikipediaLink.Value;
Fields.WikipediaLinks.Add((string)WikipediaLinkData["site"], (string)WikipediaLinkData["title"]);
}
}
var Claims = (JObject)EntityData["claims"];
if (Claims != null)
{
//Now we get to loop through each claim property for that article
foreach (var Claim in Claims.Properties())
{
string ClaimKey = Claim.Name;
if (ClaimsRequired != null && Array.IndexOf(ClaimsRequired, ClaimKey) == -1)
{
continue;
}
var ClaimData = (JArray)Claim.Value;
for (int ThisClaim = 0; ThisClaim < ClaimData.Count(); ThisClaim++)
{
//claimData is an array - another loop
WikidataClaim ThisClaimData = new WikidataClaim();
var MainSnak = (JObject)ClaimData[ThisClaim]["mainsnak"];
string SnakType = (string)MainSnak["snaktype"];
string SnakDataType = (string)MainSnak["datatype"];
var SnakDataValue = (JObject)MainSnak["datavalue"];
if (SnakType == "novalue" || SnakType == "somevalue")
{
ThisClaimData.ValueAsString = SnakType;
}
else
{
if (SnakDataType == "string" || SnakDataType == "commonsMedia" || SnakDataType == "url")
{
ThisClaimData.ValueAsString = (string)SnakDataValue["value"];
}
else if (SnakDataType == "wikibase-item")
{
var ObjectValue = (JObject)SnakDataValue["value"];
ThisClaimData.Qcode = (int)ObjectValue["numeric-id"];
ThisClaimData.ValueAsString = Cache.RetrieveLabel(ThisClaimData.Qcode);
}
else if (SnakDataType == "time")
{
var ObjectValue = (JObject)SnakDataValue["value"];
string ValueTime = (string)ObjectValue["time"];
string ValueTimePrecision = (string)ObjectValue["precision"];
string ValueTimeCalendarModel = (string)ObjectValue["calendarmodel"];
bool Julian = false;
bool Gregorian = false;
if (ValueTimeCalendarModel != "http://www.Wikidata.org/entity/Q1985727")
{
Gregorian = true;
}
if (ValueTimeCalendarModel == "http://www.Wikidata.org/entity/Q1985786")
{
Julian = true;
}
if (ValueTimePrecision == "11" || ValueTimePrecision == "10" || ValueTimePrecision == "9" ||
ValueTimePrecision == "8" || ValueTimePrecision == "7" || ValueTimePrecision == "6")
{
int DateStart = ValueTime.IndexOf("-", 2) - 4;
string ThisDateString = (ValueTime.Substring(DateStart, 10));
ThisDateString = ThisDateString.Replace("-00", "-01"); // Occasionally get 1901-00-00 ?
bool ValidDate = true;
DateTime thisDate;
try
{
thisDate = DateTime.Parse(ThisDateString, null, DateTimeStyles.RoundtripKind);
}
catch
{
thisDate = DateTime.MinValue;
ValidDate = false;
}
if (Julian == true && ValueTimePrecision == "11")
{
// All dates will be Gregorian
// Julian flag tells us to display Julian date.
// JulianCalendar JulCal = new JulianCalendar();
// DateTime dta = JulCal.ToDateTime(thisDate.Year, thisDate.Month, thisDate.Day, 0, 0, 0, 0);
// thisDate = dta;
}
DatePrecision Precision = DatePrecision.Null;
if (ValidDate == false)
{
Precision = DatePrecision.Invalid;
}
else if (ValueTime.Substring(0, 1) == "+")
{
switch (ValueTimePrecision)
{
case "11":
Precision = DatePrecision.Day;
break;
case "10":
Precision = DatePrecision.Month;
break;
case "9":
Precision = DatePrecision.Year;
break;
case "8":
Precision = DatePrecision.Decade;
break;
case "7":
Precision = DatePrecision.Century;
break;
case "6":
Precision = DatePrecision.Millenium;
break;
}
}
else
{
Precision = DatePrecision.BCE;
}
ThisClaimData.ValueAsDateTime.thisDate = thisDate;
ThisClaimData.ValueAsDateTime.thisPrecision = Precision;
}
}
else if (SnakDataType == "monolingualtext")
{
var ObjectValue = (JObject)SnakDataValue["value"];
string ValueText = (string)ObjectValue["text"];
string ValueLanguage = (string)ObjectValue["language"];
// TODO Multi language handling
ThisClaimData.ValueAsString = ValueText + "(" + ValueLanguage + ")";
}
else if (SnakDataType == "quantity")
{
var ObjectValue = (JObject)SnakDataValue["value"];
string ValueAmount = (string)ObjectValue["amount"];
string ValueUnit = (string)ObjectValue["unit"];
string ValueUpper = (string)ObjectValue["upperBound"];
string ValueLower = (string)ObjectValue["lowerBound"];
ThisClaimData.ValueAsString = "(" + ValueLower + " to " + ValueUpper + ") Unit " + ValueUnit;
}
}
Fields.Claims.Add(new KeyValuePair <int, WikidataClaim>(Convert.ToInt32(ClaimKey.Substring(1)), ThisClaimData));
}
}
}
return(true);
}
