本文整理汇总了C#中MongoDB.Bson.IO.BsonReader.ReadNull方法的典型用法代码示例。如果您正苦于以下问题：C# BsonReader.ReadNull方法的具体用法？C# BsonReader.ReadNull怎么用？C# BsonReader.ReadNull使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MongoDB.Bson.IO.BsonReader的用法示例。
在下文中一共展示了BsonReader.ReadNull方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Deserialize
public override object Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializationOptions options)
{
object value = null;
if (bsonReader.CurrentBsonType == BsonType.Null)
{
bsonReader.ReadNull();
}
else
{
bsonReader.ReadStartArray();
var idList = new List<ObjectId>();
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
var id = (ObjectId)BsonSerializer.Deserialize(bsonReader, typeof(ObjectId));
idList.Add(id);
}
bsonReader.ReadEndArray();
if (idList.Count > 0)
{
var cursor = MongoDbProvider.Database.GetCollection(DocumentType, DocumentType.Name)
.FindAs(DocumentType, Query.In("_id", BsonArray.Create(idList)));
var documents = (IList)Activator.CreateInstance(typeof(List<>).MakeGenericType(DocumentType));
foreach (var document in cursor)
{
documents.Add(document);
}
value = documents;
}
}
return value;
}示例2: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
Type actualType,
IBsonSerializationOptions options)
{
VerifyTypes(nominalType, actualType, typeof(IPAddress));
BsonType bsonType = bsonReader.GetCurrentBsonType();
string message;
switch (bsonType)
{
case BsonType.Null:
bsonReader.ReadNull();
return null;
case BsonType.String:
var stringValue = bsonReader.ReadString();
IPAddress address;
if (IPAddress.TryParse(stringValue, out address))
{
return address;
}
message = string.Format("Invalid IPAddress value '{0}'.", stringValue);
throw new FileFormatException(message);
default:
message = string.Format("Cannot deserialize IPAddress from BsonType {0}.", bsonType);
throw new FileFormatException(message);
}
}示例3: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
Type actualType,
IBsonSerializationOptions options)
{
VerifyTypes(nominalType, actualType, typeof(bool));
var bsonType = bsonReader.GetCurrentBsonType();
switch (bsonType)
{
case BsonType.Boolean:
return bsonReader.ReadBoolean();
case BsonType.Double:
return bsonReader.ReadDouble() != 0.0;
case BsonType.Int32:
return bsonReader.ReadInt32() != 0;
case BsonType.Int64:
return bsonReader.ReadInt64() != 0;
case BsonType.Null:
bsonReader.ReadNull();
return false;
case BsonType.String:
return XmlConvert.ToBoolean(bsonReader.ReadString().ToLower());
default:
var message = string.Format("Cannot deserialize Boolean from BsonType {0}.", bsonType);
throw new FileFormatException(message);
}
}示例4: Deserialize
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
IBsonSerializationOptions options
) {
if (nominalType != typeof(object)) {
var message = string.Format("ObjectSerializer called for nominal type {0}.", nominalType.FullName);
throw new InvalidOperationException(message);
}
var bsonType = bsonReader.CurrentBsonType;
if (bsonType == BsonType.Null) {
bsonReader.ReadNull();
return null;
} else if (bsonType == BsonType.Document) {
var bookmark = bsonReader.GetBookmark();
bsonReader.ReadStartDocument();
if (bsonReader.ReadBsonType() == BsonType.EndOfDocument) {
bsonReader.ReadEndDocument();
return new object();
} else {
bsonReader.ReturnToBookmark(bookmark);
}
}
var discriminatorConvention = BsonDefaultSerializer.LookupDiscriminatorConvention(typeof(object));
var actualType = discriminatorConvention.GetActualType(bsonReader, typeof(object));
if (actualType == typeof(object)) {
var message = string.Format("Unable to determine actual type of object to deserialize. NominalType is System.Object and BsonType is {0}.", bsonType);
throw new FileFormatException(message);
}
var serializer = BsonSerializer.LookupSerializer(actualType);
return serializer.Deserialize(bsonReader, nominalType, actualType, null);
}示例5: Deserialize
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
IBsonSerializationOptions options
)
{
var bsonType = bsonReader.GetCurrentBsonType();
if (bsonType == BsonType.Null)
{
bsonReader.ReadNull();
return null;
}
var nvc = new NameValueCollection();
bsonReader.ReadStartArray();
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
bsonReader.ReadStartArray();
var key = (string)StringSerializer.Instance.Deserialize(bsonReader, typeof(string), options);
var val = (string)StringSerializer.Instance.Deserialize(bsonReader, typeof(string), options);
bsonReader.ReadEndArray();
nvc.Add(key, val);
}
bsonReader.ReadEndArray();
return nvc;
}示例6: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
Type actualType,
IBsonSerializationOptions options)
{
VerifyTypes(nominalType, actualType, typeof(BsonNull));
var bsonType = bsonReader.GetCurrentBsonType();
string message;
switch (bsonType)
{
case BsonType.Null:
bsonReader.ReadNull();
return BsonNull.Value;
case BsonType.Document:
bsonReader.ReadStartDocument();
var name = bsonReader.ReadName();
if (name == "_csharpnull" || name == "$csharpnull")
{
var csharpNull = bsonReader.ReadBoolean();
bsonReader.ReadEndDocument();
return csharpNull ? null : BsonNull.Value;
}
else
{
message = string.Format("Unexpected element name while deserializing a BsonNull: {0}.", name);
throw new FileFormatException(message);
}
default:
message = string.Format("Cannot deserialize BsonNull from BsonType {0}.", bsonType);
throw new FileFormatException(message);
}
}示例7: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
Type actualType,
IBsonSerializationOptions options)
{
VerifyTypes(nominalType, actualType, typeof(BsonBinaryData));
var bsonType = bsonReader.GetCurrentBsonType();
switch (bsonType)
{
case BsonType.Null:
bsonReader.ReadNull();
return null;
case BsonType.Binary:
byte[] bytes;
BsonBinarySubType subType;
GuidRepresentation guidRepresentation;
bsonReader.ReadBinaryData(out bytes, out subType, out guidRepresentation);
return new BsonBinaryData(bytes, subType, guidRepresentation);
default:
var message = string.Format("Cannot deserialize BsonBinaryData from BsonType {0}.", bsonType);
throw new FileFormatException(message);
}
}示例8: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializationOptions options)
{
var bsonType = bsonReader.CurrentBsonType;
if (bsonType == BsonType.Null)
{
bsonReader.ReadNull();
return null;
}
else if (bsonType == BsonType.Array)
{
bsonReader.ReadStartArray();
var list = new ArrayList();
var discriminatorConvention = BsonDefaultSerializer.LookupDiscriminatorConvention(typeof(object));
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
var elementType = discriminatorConvention.GetActualType(bsonReader, typeof(object));
var serializer = BsonSerializer.LookupSerializer(elementType);
var element = serializer.Deserialize(bsonReader, typeof(object), elementType, null);
list.Add(element);
}
bsonReader.ReadEndArray();
return list;
}
else
{
var message = string.Format("Can't deserialize a {0} from BsonType {1}.", nominalType.FullName, bsonType);
throw new FileFormatException(message);
}
}示例9: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
Type actualType,
IBsonSerializationOptions options)
{
VerifyTypes(nominalType, actualType, typeof(CultureInfo));
var bsonType = bsonReader.GetCurrentBsonType();
switch (bsonType)
{
case BsonType.Null:
bsonReader.ReadNull();
return null;
case BsonType.Document:
bsonReader.ReadStartDocument();
var name = bsonReader.ReadString("Name");
var useUserOverride = bsonReader.ReadBoolean("UseUserOverride");
bsonReader.ReadEndDocument();
return new CultureInfo(name, useUserOverride);
case BsonType.String:
return new CultureInfo(bsonReader.ReadString());
default:
var message = string.Format("Cannot deserialize CultureInfo from BsonType {0}.", bsonType);
throw new FileFormatException(message);
}
}示例10: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>
/// An object.
/// </returns>
public override object Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializationOptions options)
{
if (bsonReader.GetCurrentBsonType() == BsonType.Null)
{
bsonReader.ReadNull();
return null;
}
else
{
bsonReader.ReadStartDocument();
DeserializeType(bsonReader, "link");
bsonReader.ReadName("properties");
bsonReader.ReadStartDocument();
var href = bsonReader.ReadString("href");
string hrefType = null;
if (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
hrefType = bsonReader.ReadString("type");
}
bsonReader.ReadEndDocument();
bsonReader.ReadEndDocument();
return new GeoJsonLinkedCoordinateReferenceSystem(href, hrefType);
}
}开发者ID:Khosrow-Azizi，项目名称:MasterExperimentV2，代码行数:36，代码来源:GeoJsonLinkedCoordinateReferenceSystemSerializer.cs
示例11: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public object Deserialize(BsonReader bsonReader, Type nominalType, IBsonSerializationOptions options)
{
VerifyNominalType(nominalType);
if (bsonReader.CurrentBsonType == Bson.BsonType.Null)
{
bsonReader.ReadNull();
return null;
}
else
{
var discriminatorConvention = BsonDefaultSerializer.LookupDiscriminatorConvention(nominalType);
var actualType = discriminatorConvention.GetActualType(bsonReader, nominalType);
if (actualType != nominalType)
{
var serializer = BsonSerializer.LookupSerializer(actualType);
if (serializer != this)
{
// in rare cases a concrete actualType might have a more specialized serializer
return serializer.Deserialize(bsonReader, nominalType, actualType, options);
}
}
return Deserialize(bsonReader, nominalType, actualType, options);
}
}示例12: Deserialize
// public methods
#pragma warning disable 618 // about obsolete BsonBinarySubType.OldBinary
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializationOptions options)
{
VerifyTypes(nominalType, actualType, typeof(BitArray));
BsonType bsonType = bsonReader.CurrentBsonType;
BitArray bitArray;
byte[] bytes;
BsonBinarySubType subType;
string message;
switch (bsonType)
{
case BsonType.Null:
bsonReader.ReadNull();
return null;
case BsonType.Binary:
bsonReader.ReadBinaryData(out bytes, out subType);
if (subType != BsonBinarySubType.Binary && subType != BsonBinarySubType.OldBinary)
{
message = string.Format("Invalid Binary sub type {0}.", subType);
throw new FileFormatException(message);
}
return new BitArray(bytes);
case BsonType.Document:
bsonReader.ReadStartDocument();
var length = bsonReader.ReadInt32("Length");
bsonReader.ReadBinaryData("Bytes", out bytes, out subType);
if (subType != BsonBinarySubType.Binary && subType != BsonBinarySubType.OldBinary)
{
message = string.Format("Invalid Binary sub type {0}.", subType);
throw new FileFormatException(message);
}
bsonReader.ReadEndDocument();
bitArray = new BitArray(bytes);
bitArray.Length = length;
return bitArray;
case BsonType.String:
var s = bsonReader.ReadString();
bitArray = new BitArray(s.Length);
for (int i = 0; i < s.Length; i++)
{
var c = s[i];
switch (c)
{
case '0':
break;
case '1':
bitArray[i] = true;
break;
default:
throw new FileFormatException("String value is not a valid BitArray.");
}
}
return bitArray;
default:
message = string.Format("Cannot deserialize Byte[] from BsonType {0}.", bsonType);
throw new FileFormatException(message);
}
}示例13: Deserialize
// public methods
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="actualType">The actual type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
Type actualType,
IBsonSerializationOptions options)
{
var arraySerializationOptions = EnsureSerializationOptions<ArraySerializationOptions>(options);
var itemSerializationOptions = arraySerializationOptions.ItemSerializationOptions;
var bsonType = bsonReader.GetCurrentBsonType();
switch (bsonType)
{
case BsonType.Null:
bsonReader.ReadNull();
return null;
case BsonType.Array:
var instance = CreateInstance(actualType);
var itemDiscriminatorConvention = BsonSerializer.LookupDiscriminatorConvention(typeof(object));
Type lastItemType = null;
IBsonSerializer lastItemSerializer = null;
bsonReader.ReadStartArray();
while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
{
var itemType = itemDiscriminatorConvention.GetActualType(bsonReader, typeof(object));
IBsonSerializer itemSerializer;
if (itemType == lastItemType)
{
itemSerializer = lastItemSerializer;
}
else
{
itemSerializer = BsonSerializer.LookupSerializer(itemType);
lastItemType = itemType;
lastItemSerializer = itemSerializer;
}
var item = itemSerializer.Deserialize(bsonReader, typeof(object), itemType, itemSerializationOptions);
AddItem(instance, item);
}
bsonReader.ReadEndArray();
return FinalizeResult(instance, actualType);
case BsonType.Document:
bsonReader.ReadStartDocument();
bsonReader.ReadString("_t"); // skip over discriminator
bsonReader.ReadName("_v");
var value = Deserialize(bsonReader, actualType, actualType, options);
bsonReader.ReadEndDocument();
return value;
default:
var message = string.Format("Can't deserialize a {0} from BsonType {1}.", nominalType.FullName, bsonType);
throw new Exception(message);
}
}示例14: Deserialize
public override object Deserialize(BsonReader bsonReader, Type nominalType, IBsonSerializationOptions options)
{
if (bsonReader.CurrentBsonType == BsonType.Null)
{
bsonReader.ReadNull();
return null;
}
var id = (ObjectId)ObjectIdSerializer.Instance.Deserialize(bsonReader, typeof(ObjectId), typeof(ObjectId), options);
return new Attachment(id);
}示例15: Deserialize
/// <summary>
/// Deserializes an object from a BsonReader.
/// </summary>
/// <param name="bsonReader">The BsonReader.</param>
/// <param name="nominalType">The nominal type of the object.</param>
/// <param name="options">The serialization options.</param>
/// <returns>An object.</returns>
public override object Deserialize(
BsonReader bsonReader,
Type nominalType,
IBsonSerializationOptions options
) {
var bsonType = bsonReader.CurrentBsonType;
if (bsonType == BsonType.Null) {
bsonReader.ReadNull();
return null;
} else {
return BsonArray.ReadFrom(bsonReader);
}
}