/// <summary>
/// Deserialize an object from a stream.
/// </summary>
/// <param name="stream">A stream contains object fields.</param>
/// <param name="size">Max length can used by this deserialization
/// if -1 no limitation except stream length.
/// </param>
/// <returns>The number of bytes read from the stream.</returns>
public override int Deserialize(Stream stream, int size)
{
AdapterHelper.Site.Assert.AreEqual(-1, size, "The size value MUST be -1, the actual value is {0}.", size);
int bytesRead = 0;
int i;
this.propertyTagCount = StreamHelper.ReadUInt32(stream);
bytesRead += 4;
this.propertyTags = new Tuple <PropertyTag, GroupPropertyName> [this.propertyTagCount];
for (i = 0; i < this.propertyTagCount; i++)
{
PropertyTag tag = new PropertyTag
{
PropertyType = StreamHelper.ReadUInt16(stream)
};
bytesRead += 2;
tag.PropertyId = StreamHelper.ReadUInt16(stream);
bytesRead += 2;
GroupPropertyName name = null;
if (this.IsNamedProperty(tag))
{
name = new GroupPropertyName();
bytesRead += name.Deserialize(stream, -1);
}
this.propertyTags[i] = new Tuple <PropertyTag, GroupPropertyName>(tag, name);
}
if (size >= 0 && bytesRead > size)
{
AdapterHelper.Site.Assert.Fail("The bytes length to read is larger than stream size, the stream size is {0} and the bytes to read is {1}.", size, bytesRead);
}
return(bytesRead);
}
/// <summary>
/// Serialize current instance to a stream.
/// </summary>
/// <param name="stream">The stream.</param>
/// <returns>The number of bytes written to the stream.</returns>
public override int Serialize(Stream stream)
{
int size = 0;
StreamHelper.WriteUInt32(stream, this.propertyTagCount);
size += 4;
AdapterHelper.Site.Assert.AreEqual((int)this.propertyTagCount, this.propertyTags.Length, "This field MUST contain PropertyTagCount tags. The expected count is {0}, the actual count is {1}.", this.propertyTagCount, this.propertyTags.Length);
for (int i = 0; i < this.propertyTagCount; i++)
{
PropertyTag tag = this.propertyTags[i].Item1;
StreamHelper.WriteUInt16(stream, tag.PropertyType);
StreamHelper.WriteUInt16(stream, tag.PropertyId);
size += 4;
if (this.IsNamedProperty(tag))
{
GroupPropertyName name = this.propertyTags[i].Item2;
AdapterHelper.Site.Assert.IsNotNull(name, "The property name should not be null.");
size += name.Serialize(stream);
}
}
return(size);
}
