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/* Copyright 2010 10gen Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using MongoDB.Bson;
using MongoDB.Bson.IO;
using MongoDB.Bson.Serialization;
namespace MongoDB.Driver.Internal {
internal class MongoQueryMessage<TQuery> : MongoRequestMessage {
#region private fields
private string collectionFullName;
private QueryFlags flags;
private int numberToSkip;
private int numberToReturn;
private TQuery query;
private BsonDocumentWrapper fields;
#endregion
#region constructors
internal MongoQueryMessage(
string collectionFullName,
QueryFlags flags,
int numberToSkip,
int numberToReturn,
TQuery query,
BsonDocumentWrapper fields
) :
this(collectionFullName, flags, numberToSkip, numberToReturn, query, fields, null) {
}
internal MongoQueryMessage(
string collectionFullName,
QueryFlags flags,
int numberToSkip,
int numberToReturn,
TQuery query,
BsonDocumentWrapper fields,
BsonBuffer buffer
) :
base(MessageOpcode.Query, buffer) {
this.collectionFullName = collectionFullName;
this.flags = flags;
this.numberToSkip = numberToSkip;
this.numberToReturn = numberToReturn;
this.query = query;
this.fields = fields;
}
#endregion
#region protected methods
protected override void WriteBody() {
buffer.WriteInt32((int) flags);
buffer.WriteCString(collectionFullName);
buffer.WriteInt32(numberToSkip);
buffer.WriteInt32(numberToReturn);
BsonWriter bsonWriter = BsonWriter.Create(buffer);
if (query == null) {
bsonWriter.WriteStartDocument();
bsonWriter.WriteEndDocument();
} else {
BsonSerializer.Serialize(bsonWriter, query, true); // serializeIdFirst
}
if (fields != null) {
BsonSerializer.Serialize(bsonWriter, fields);
}
}
#endregion
}
}