| public CalculateSize ( Document doc ) : int | ||
| doc | Document | |
| Результат | int | |
protected override int CalculateBodySize(BsonWriter writer)
{
int size = 8; //first int32, second int32
size += writer.CalculateSize(this.FullCollectionName,false);
size += writer.CalculateSize(Selector);
return size;
}
protected override int CalculateBodySize(BsonWriter writer)
{
int size = 4; //first int32
size += writer.CalculateSize(this.FullCollectionName,false);
size += 4; //flags
size += writer.CalculateSize(this.Selector);
size += writer.CalculateSize(this.Document);
return size;
}
/// <summary>
/// The base size that all chunks will have.
/// </summary>
protected int CalculateBaseSize(BsonWriter writer)
{
int size = 4; //first int32
size += writer.CalculateSize(this.FullCollectionName,false);
size += Header.MessageLength;
return size;
}
protected override int CalculateBodySize(BsonWriter writer)
{
int size = 4; //first int32
size += writer.CalculateSize(this.FullCollectionName,false);
size += 12; //number to return + cursorid
return size;
}
public void TestCalculateSizeOfEmptyDoc()
{
Document doc = new Document();
MemoryStream ms = new MemoryStream();
BsonWriter writer = new BsonWriter(ms);
Assert.AreEqual(5,writer.CalculateSize(doc));
}
public void TestCalculateSizeOfEmptyDoc()
{
Document doc = new Document();
MemoryStream ms = new MemoryStream();
BsonWriter writer = new BsonWriter(ms);
Assert.AreEqual(5, writer.CalculateSize(doc));
}
public void TestCalculateSizeOfSimpleDoc()
{
Document doc = new Document();
doc.Append("a","a");
doc.Append("b",1);
MemoryStream ms = new MemoryStream();
BsonWriter writer = new BsonWriter(ms);
//BsonDocument bdoc = BsonConvert.From(doc);
Assert.AreEqual(21,writer.CalculateSize(doc));
}
public void TestCalculateSizeOfComplexDoc()
{
Document doc = new Document();
doc.Append("a","a");
doc.Append("b",1);
Document sub = new Document().Append("c_1",1).Append("c_2",DateTime.Now);
doc.Append("c",sub);
MemoryStream ms = new MemoryStream();
BsonWriter writer = new BsonWriter(ms);
Assert.AreEqual(51,writer.CalculateSize(doc));
}
public void TestCalculateSizeOfComplexDoc()
{
Document doc = new Document();
doc.Append("a", "a");
doc.Append("b", 1);
Document sub = new Document().Append("c_1", 1).Append("c_2", DateTime.Now);
doc.Append("c", sub);
MemoryStream ms = new MemoryStream();
BsonWriter writer = new BsonWriter(ms);
Assert.AreEqual(51, writer.CalculateSize(doc));
}
public void TestCalculateSizeOfSimpleDoc()
{
Document doc = new Document();
doc.Append("a", "a");
doc.Append("b", 1);
MemoryStream ms = new MemoryStream();
BsonWriter writer = new BsonWriter(ms);
//BsonDocument bdoc = BsonConvert.From(doc);
Assert.AreEqual(21, writer.CalculateSize(doc));
}
/// <summary>
/// Breaks down an insert message that may be too large into managable sizes.
/// When inserting only one document there will be only one chunk. However chances
/// are that when inserting thousands of documents at once there will be many.
/// </summary>
protected void ChunkMessage(BsonWriter writer)
{
int baseSize = CalculateBaseSize(writer);
MessageChunk chunk = new MessageChunk(){Size = baseSize, Documents = new List<Document>()};
foreach(Document doc in this.Documents){
int docSize = writer.CalculateSize(doc);
if(docSize + baseSize >= MessageBase.MaximumMessageSize) throw new MongoException("Document is too big to fit in a message.");
if(docSize + chunk.Size > MessageBase.MaximumMessageSize){
chunks.Add(chunk);
chunk = new MessageChunk(){Size = baseSize, Documents = new List<Document>()};
}
chunk.Documents.Add(doc);
chunk.Size += docSize;
}
chunks.Add(chunk);
}
protected override int CalculateBodySize(BsonWriter writer)
{
int size = 12; //options, numbertoskip, numbertoreturn
size += writer.CalculateSize(this.FullCollectionName,false);
size += writer.CalculateSize(this.Query);
if(this.ReturnFieldSelector != null){
size += writer.CalculateSize(this.ReturnFieldSelector);
}
return size;
}
protected override int CalculateBodySize(BsonWriter writer)
{
return writer.CalculateSize(this.Message,false);
}
private string WriteAndReadLenString(string val)
{
MemoryStream ms = new MemoryStream();
BsonWriter bs = new BsonWriter(ms);
BinaryWriter w = new BinaryWriter(ms);
int byteCount = bs.CalculateSize(val,false);
w.Write(byteCount);
bs.WriteString(val);
ms.Seek(0,SeekOrigin.Begin);
BsonReader reader = new BsonReader(ms);
return reader.ReadLenString();
}
