private string GetAsJson(object obj)
{
var assembly = new StiDataAssemblyHelper("MongoDB.Bson.dll");
var settings = assembly.CreateObject("MongoDB.Bson.IO.JsonWriterSettings");
settings.GetType().GetProperty("OutputMode").SetValue(settings, 0, null);
using (var writer = new StringWriter())
{
//var writer2 = BsonWriter.Create(writer, settings as JsonWriterSettings);
var method = assembly.GetType("MongoDB.Bson.IO.BsonWriter").GetMethod("Create", new[] { writer.GetType(), settings.GetType() });
using (var writer2 = method.Invoke(null, new[] { writer, settings }) as IDisposable)
{
var bsonWriterType = assembly.GetType("MongoDB.Bson.IO.BsonWriter");
//BsonSerializer.Serialize(writer2, typeof(object), obj);
method = assembly.GetType("MongoDB.Bson.Serialization.BsonSerializer").GetMethod("Serialize", new[] { bsonWriterType, typeof(Type), obj.GetType() });
method.Invoke(null, new[] { writer2, typeof(object), obj });
return(writer.ToString());
}
}
}
public string ConvertDateTimeToJsonStr(DateTime date)
{
try
{
//var bsonDocument = new BsonDocument();
var assembly = new StiDataAssemblyHelper("MongoDB.Bson.dll");
//var bsonElement = new BsonElement("date", BsonValue.Create(date));
var bsonValue = assembly.GetType("MongoDB.Bson.BsonValue").GetMethod("Create").Invoke(null, new object[] { date });
var bsonElement = assembly.CreateObject("MongoDB.Bson.BsonElement", "date", bsonValue);
var str = bsonElement.ToString().Replace("date=", "");
return(string.Format("\"{0}\"", str));
}
catch
{
return(null);
}
}
public override DataTable GetDataTable(string collectionName, string query, int?index = null, int?count = null)
{
try
{
var database = GetDatabase();
//var collection = database.GetCollection<BsonDocument>(collectionName);
var method = database.GetType().GetMethods().FirstOrDefault(m => m.Name == "GetCollection" &&
!m.IsGenericMethodDefinition &&
m.GetParameters().Length == 1 &&
m.GetParameters()[0].ParameterType ==
typeof(string));
object collection = null;
if (method != null)//net40
{
collection = method.Invoke(database, new object[] { collectionName });
}
/*else//net45
* {
* var settingsType = AssemblyHelper.GetType("MongoDB.Driver.MongoCollectionSettings");
* method = database.GetType().GetMethod("GetCollection", new[] { typeof (string), settingsType });
* method = method.MakeGenericMethod(database.GetType());
* collection = method.Invoke(database, new object[] { collectionName, null });
* }*/
//var cursor = string.IsNullOrWhiteSpace(query) ? collection.FindAll() : collection.Find(new QueryDocument(BsonDocument.Parse(query)));
var assembly = new StiDataAssemblyHelper("MongoDB.Bson.dll");
IEnumerable cursor = null;
if (string.IsNullOrWhiteSpace(query))
{
method = collection.GetType().GetMethod("FindAll");
cursor = method.Invoke(collection, null) as IEnumerable;
}
else
{
var bsonDocument = assembly.GetType("MongoDB.Bson.BsonDocument")
.GetMethod("Parse")
.Invoke(null, new object[] { query });
var queryDocument = AssemblyHelper.CreateObject("MongoDB.Driver.QueryDocument", bsonDocument);
cursor = collection.GetType().GetMethod("Find").Invoke(collection, new[] { queryDocument }) as IEnumerable;
}
var list = new List <JToken>();
var i = 0;
foreach (var row in cursor)
{
if (count != null && i >= count)
{
break;
}
if (index == null || i >= index)
{
try
{
//var jStr = row.ToJson(new JsonWriterSettings { OutputMode = JsonOutputMode.Strict });
//var jsonWriterSettings = assembly.CreateObject("MongoDB.Bson.IO.JsonWriterSettings");
//jsonWriterSettings.GetType().GetProperty("OutputMode").SetValue(jsonWriterSettings, 0, null);
//var method2 = assembly.GetType("MongoDB.Bson.BsonExtensionMethods").GetMethod("ToJson", new[] {typeof(object), typeof(Type), jsonWriterSettings.GetType() });
//var jStr = method2.Invoke(row, new[] { jsonWriterSettings }) as string;
var jStr = GetAsJson(row);
var jToken = JToken.Parse(jStr);
list.Add(jToken);
}
catch
{
}
}
i++;
}
var dataSet = StiJsonToDataSetConverter.GetDataSet(list, true);
return(dataSet != null && dataSet.Tables.Count > 0 ? dataSet.Tables[0] : null);
}
catch (Exception exception)
{
if (exception.InnerException != null)
{
throw exception.InnerException;
}
else
{
throw;
}
}
}