/**
* <inheritdoc/>
*/
public Tag <List <ITag> > CreateFromData(byte[] value)
{
int length = value.Length;
ICompressor compressor;
byte[] bitData;
using (BigBinaryReader bbr = new BigBinaryReader(new MemoryStream(value)))
{
short compressorLength = bbr.ReadInt16();
length -= 2 + compressorLength;
byte[] compressorBytes = new byte[compressorLength];
bbr.Read(compressorBytes, 0, compressorLength);
string compressionName = Encoding.UTF8.GetString(compressorBytes);
compressor = ODSUtil.GetCompressor(compressionName);
if (compressor == null)
{
throw new ODSException("Cannot find compressor: " + compressionName);
}
bitData = bbr.ReadBytes((int)(bbr.BaseStream.Length - bbr.BaseStream.Position));
}
this.compressor = compressor;
byte[] decompressedData;
using (MemoryStream memStream = new MemoryStream())
{
using (Stream compressedStream = compressor.GetDecompressStream(new MemoryStream(bitData)))
{
compressedStream.CopyTo(memStream);
}
decompressedData = memStream.ToArray();
}
this.value = InternalUtils.GetListData <ITag>(decompressedData);
return(this);
}
/**
* <inheritdoc/>
*/
public void WriteData(BigBinaryWriter dos)
{
dos.Write(GetID());
MemoryStream memStream = new MemoryStream();
BigBinaryWriter writer = new BigBinaryWriter(memStream);
writer.Write((short)Encoding.UTF8.GetByteCount(name));
writer.Write(Encoding.UTF8.GetBytes(name));
string compressorName = ODSUtil.GetCompressorName(compressor);
if (compressorName == null)
{
throw new ODSException("Unable to find compressor: " + compressor);
}
// Write the data for the compressor into the temp writer.
writer.Write((short)Encoding.UTF8.GetByteCount(compressorName));
writer.Write(Encoding.UTF8.GetBytes(compressorName));
// Temporary Compression Stream
MemoryStream memStreamTemp = new MemoryStream();
Stream compressedStream = compressor.GetCompressStream(memStreamTemp);
BigBinaryWriter writerTemp = new BigBinaryWriter(compressedStream);
foreach (ITag tag in value)
{
tag.WriteData(writerTemp);
}
writerTemp.Close();
writer.Write(memStreamTemp.ToArray());
dos.Write((int)writer.BaseStream.Length);
writer.Close();
dos.Write(memStream.ToArray());
}
static void Main(string[] args)
{
ObjectDataStructure ods = new ObjectDataStructure(new FileInfo(Directory.GetCurrentDirectory() + @"\test3.ods"), new GZIPCompression());
// Register a custom tag.
ODSUtil.RegisterCustomTag(new CustomTag("", ""));
Console.WriteLine(Directory.GetCurrentDirectory() + "\\test3.ods");
List <ITag> tags = new List <ITag>();
tags.Add(new StringTag("ExampleKey", "This is an example string!"));
tags.Add(new IntTag("ExampleInt", 754));
ObjectTag car = new ObjectTag("Car");
car.AddTag(new StringTag("type", "Jeep"));
car.AddTag(new IntTag("gas", 30));
List <IntTag> coordsList = new List <IntTag>()
{
new IntTag("", 10), new IntTag("", 5), new IntTag("", 10)
};
car.AddTag(new ListTag <IntTag>("coords", coordsList));
ObjectTag owner = new ObjectTag("Owner");
owner.AddTag(new StringTag("firstName", "Jeff"));
owner.AddTag(new StringTag("lastName", "Bob"));
owner.AddTag(new IntTag("Age", 30));
car.AddTag(owner);
tags.Add(car);
tags.Add(new CustomTag("Test", "Test"));
CompressedObjectTag compressedObjectTag = new CompressedObjectTag("TestCompressedObject");
compressedObjectTag.AddTag(ODSUtil.Wrap("TestObject", "This is a test!"));
compressedObjectTag.AddTag(ODSUtil.Wrap("Number", 15));
compressedObjectTag.AddTag(ODSUtil.Wrap("Decimal", 34.5));
tags.Add(compressedObjectTag);
ods.Save(tags);
ods.Append(new StringTag("Test", "test"));
ods.GetAll();
// Loading Example
StringTag tag = (StringTag)ods.Get("ExampleKey");
Console.WriteLine("The value of the ExampleKey is: " + tag.GetValue());
ObjectTag myCar = (ObjectTag)ods.Get("Car");
StringTag myCarType = (StringTag)myCar.GetTag("type");
Console.WriteLine("The car is a " + myCarType.GetValue());
Console.WriteLine("First Name:");
StringTag ownerFirstName = (StringTag)ods.Get("Car.Owner.firstName");
Console.WriteLine("Last Name:");
StringTag ownerLastName = (StringTag)ods.Get("Car.Owner.lastName");
Console.WriteLine("The owner of the car is " + ODSUtil.UnWrap(ownerFirstName) + " " + ODSUtil.UnWrap(ownerLastName));
Console.WriteLine(ods.Find("Car.Owner.firstName"));
Console.WriteLine(((CustomTag)ods.Get("Test")).GetValue());
ods.Set("Car.Owner.firstName", new StringTag("firstName", "Example"));
ods.ReplaceData("Car.Owner.Age", new IntTag("Age", 3));
Console.WriteLine(ODSUtil.UnWrap((IntTag)ods.Get("Car.Owner.Age")));
CompressedObjectTag compressedObject = (CompressedObjectTag)ods.Get("TestCompressedObject");
IntTag numberTag = (IntTag)compressedObject.GetTag("Number");
Console.WriteLine("Test Compression Number: " + numberTag.GetValue());
ods.SaveToFile(new FileInfo(@"new_file.ods"), new GZIPCompression());
//ods.Set("Car.Owner.Age", new IntTag("Age", 3));
}
