public IEnumerable <FieldEntry> GetFields(DataSourceProviderConfiguration providerConfiguration)
{
string fileLocation = providerConfiguration.Configuration;
// Because the wikipedia XML doesn't have a column key, I'vehard-coded the field names here.
var fieldEntries = new List <FieldEntry>()
{
new FieldEntry {
DisplayName = "Title", FieldIdentifier = "title", IsIdentifier = true
},
new FieldEntry {
DisplayName = "URL", FieldIdentifier = "url", IsIdentifier = false
},
new FieldEntry {
DisplayName = "Abstract", FieldIdentifier = "abstract", IsIdentifier = false
}
};
return(fieldEntries);
}
public IDataReader GetBatchableIds(FieldEntry identifier, DataSourceProviderConfiguration providerConfiguration)
{
string fileLocation = providerConfiguration.Configuration;
DataTable dt = new DataTable();
dt.Columns.Add(identifier.FieldIdentifier);
XmlDocument doc = new XmlDocument();
doc.Load(fileLocation);
XmlNodeList nodes = doc.DocumentElement.SelectNodes(string.Format("/feed/doc/{0}", identifier.FieldIdentifier));
foreach (XmlNode node in nodes)
{
var row = dt.NewRow();
row[identifier.FieldIdentifier] = node.InnerText;
dt.Rows.Add(row);
}
return(dt.CreateDataReader());
}
public IDataReader GetData(IEnumerable <FieldEntry> fields, IEnumerable <string> entryIds, DataSourceProviderConfiguration providerConfiguration)
{
string fileLocation = providerConfiguration.Configuration;
List <string> fieldList = fields.Select(f => f.FieldIdentifier).ToList();
string keyFieldName = fields.FirstOrDefault(f => f.IsIdentifier).FieldIdentifier;
return(new XMLDataReader(entryIds, fieldList, keyFieldName, fileLocation));
}