public static void CreateHugeGzipFile()
{
if (System.IO.File.Exists(fileName))
{
return;
}
byte[] buffer = new byte[ONE_MEGABYTE]; // 1MB
using (System.IO.FileStream gzipTargetAsStream = System.IO.File.OpenWrite(fileName))
{
using (ICSharpCode.SharpZipLib.GZip.GZipOutputStream gzipStream =
new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(gzipTargetAsStream))
{
try
{
for (int i = 0; i < REPEAT_COUNT; ++i)
{
gzipStream.Write(buffer, 0, ONE_MEGABYTE);
} // Next i
}
catch (System.Exception ex)
{
System.Console.WriteLine(ex.Message);
}
} // End Using gzipStream
} // End Using gzipTargetAsStream
} // End Sub CreateHugeGzipFile
private void CompresNowGZip()
{
Stream s = null;
Stream aux = new MemoryStream();
try
{
s = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(aux);
s.Write(this.m_byteinput, 0, (int)this.m_byteinput.Length);
(s as ICSharpCode.SharpZipLib.GZip.GZipOutputStream).Finish();
s.Flush();
}
catch (ZipException e)
{
this.m_byteoutput = null;
this.m_streamoutput = null;
Debug.WriteLine(e.Message);
}
finally
{
aux.Seek(0, SeekOrigin.Begin);
this.m_byteoutput = null;
this.m_byteoutput = new byte[aux.Length];
aux.Read(this.m_byteoutput, 0, (int)aux.Length);
this.m_streamoutput = null;
this.m_streamoutput = new MemoryStream(this.m_byteoutput);
//s.Close();
}
}
public static void WriteToGzip(this IEnumerable <byte> array, string file)
{
using (var gzip = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(File.Create(file + ".gz")))
{
gzip.SetLevel(9);
var buffer = array.ToArray();
gzip.Write(buffer, 0, buffer.Length);
}
}
/// <summary>
/// Compresses a byte array using the specified compression, and returns a compressed byte array.
/// </summary>
/// <param name="bytes">The input bytes to compress.</param>
/// <param name="offset">The amount of offset to apply to the byte array before beginning compression.</param>
/// <param name="length">The length of bytes to compress in the byte array.</param>
/// <param name="compressionType">Type of the compression to apply.</param>
/// <returns>A byte array representing the compressed byte array</returns>
public static byte[] CompressToBytes(byte[] bytes, int offset, int length, CompressionType compressionType)
{
if (bytes == null || bytes.Length == 0)
{
return(new byte[0]);
}
if (offset < 0)
{
throw new ArgumentOutOfRangeException("offset", "offset cannot be less than zero");
}
if (length > bytes.Length)
{
throw new ArgumentOutOfRangeException("length", "length cannot be greater than bytes.length");
}
if (length + offset > bytes.Length)
{
throw new ArgumentOutOfRangeException("length", "length + offset cannot be greater than bytes.length");
}
using (MemoryStream memoryStream = new MemoryStream()) {
switch (compressionType)
{
case CompressionType.BZip:
using (ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream stream = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(memoryStream)) {
stream.Write(bytes, offset, length);
}
break;
case CompressionType.GZip:
using (ICSharpCode.SharpZipLib.GZip.GZipOutputStream stream = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(memoryStream)) {
stream.Write(bytes, offset, length);
}
break;
// case CompressionType.Tar:
// using (ICSharpCode.SharpZipLib.Tar.TarOutputStream stream = new ICSharpCode.SharpZipLib.Tar.TarOutputStream(memoryStream)) {
// ICSharpCode.SharpZipLib.Tar.TarEntry entry = ICSharpCode.SharpZipLib.Tar.TarEntry.CreateTarEntry("TarEntry");
// entry.Size = length;
// stream.PutNextEntry(entry);
// stream.Write(bytes, offset, length);
// stream.IsStreamOwner = false;
// stream.CloseEntry();
// }
// break;
case CompressionType.Zip:
using (ICSharpCode.SharpZipLib.Zip.Compression.Streams.DeflaterOutputStream stream = new ICSharpCode.SharpZipLib.Zip.Compression.Streams.DeflaterOutputStream(memoryStream)) {
stream.Write(bytes, offset, length);
}
break;
default:
return(new byte[0]);
}
return(memoryStream.ToArray());
}
}
/// <summary>
/// 压缩byte[]
/// </summary>
/// <returns>The bytes.</returns>
/// <param name="data">Data.</param>
public static byte[] CompressBytes(byte[] data)
{
MemoryStream ms = new MemoryStream();
ICSharpCode.SharpZipLib.GZip.GZipOutputStream gzp = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(ms);
gzp.Write(data, 0, data.Length);
gzp.Close();
return(ms.ToArray());
}
/// <summary>
/// 压缩字节数组
/// 返回：已压缩的字节数组
/// </summary>
/// <param name="byteData">待压缩的字节数组</param>
/// <returns></returns>
public static byte[] CompressBytes(byte[] byteData)
{
var o = new MemoryStream();
var s = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(o);
s.Write(byteData, 0, byteData.Length);
s.Close();
o.Flush();
o.Close();
return(o.ToArray());
}
public static byte[] GCompress(byte[] data)
{
byte[] result = null;
using (MemoryStream ms = new MemoryStream())
using (Stream s = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(ms))
{
s.Write(data, 0, data.Length);
s.Close();
result = ms.ToArray();
}
return(result);
}
private static void CreateZipFile(string lpSourceFile, string lpZipFile, GZipResult result)
{
byte[] buffer;
FileStream fsOut = null;
FileStream fsIn = null;
ICSharpCode.SharpZipLib.GZip.GZipOutputStream gzip = null;
// compress the file into the zip file
try
{
fsOut = new FileStream(lpZipFile, FileMode.Create, FileAccess.Write, FileShare.None);
gzip = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(fsOut);
fsIn = new FileStream(lpSourceFile, FileMode.Open, FileAccess.Read, FileShare.Read);
buffer = new byte[fsIn.Length];
fsIn.Read(buffer, 0, buffer.Length);
fsIn.Close();
fsIn = null;
// compress to the zip file
gzip.Write(buffer, 0, buffer.Length);
result.ZipFileSize = fsOut.Length;
result.CompressionPercent = GetCompressionPercent(result.TempFileSize, result.ZipFileSize);
}
catch
{ //(Exception ex1)
result.Errors = true;
}
finally
{
if (gzip != null)
{
gzip.Close();
gzip = null;
}
if (fsOut != null)
{
fsOut.Close();
fsOut = null;
}
if (fsIn != null)
{
fsIn.Close();
fsIn = null;
}
}
}
public void StoreEntries(IEnumerable <string> entries)
{
using (var compressedStream = bucketStreamProvider.OpenWrite(address))
using (var zip = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(compressedStream))
using (var bw = new BinaryWriter(zip))
{
zip.SetLevel(9);
bw.Write((int)entries.Count());
foreach (var e in entries)
{
var bytes = Encoding.UTF8.GetBytes(e);
bw.Write((int)bytes.Length);
zip.Write(bytes, 0, bytes.Length);
}
}
}
public static Byte[] Compress(this byte[] bytes)
{
if (bytes == null || bytes.Length == 0)
{
return(new Byte[0]);
}
using (System.IO.MemoryStream wynik = new System.IO.MemoryStream())
{
using (ICSharpCode.SharpZipLib.GZip.GZipOutputStream zip = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(wynik))
{
zip.Write(bytes, 0, bytes.Length);
zip.Finish();
return(wynik.ToArray());
}
}
}
/// <summary>
/// 压缩字符串
/// </summary>
/// <param name="param"></param>
/// <returns></returns>
public static string Compress(string param)
{
byte[] data = System.Text.Encoding.UTF8.GetBytes(param);
MemoryStream ms = new MemoryStream();
Stream stream = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(ms);
try
{
stream.Write(data, 0, data.Length);
}
finally
{
stream.Close();
ms.Close();
}
return(Convert.ToBase64String(ms.ToArray()).Trim().Replace("+", "@"));
}
public string Compress(string inputString)
{
// Create the zip stream
System.IO.MemoryStream memstream = new System.IO.MemoryStream();
ICSharpCode.SharpZipLib.GZip.GZipOutputStream zipstream = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(memstream);
// Get the bytes of the input string
Byte[] buffer = System.Text.Encoding.Unicode.GetBytes(inputString);
// Write the bytes to the zipstream
zipstream.Write(buffer, 0, buffer.Length);
// Clean up
zipstream.Close();
memstream.Close();
// Get the Base64 representation of the compressed string
buffer = memstream.ToArray();
string Result = Convert.ToBase64String(buffer);
return(Result);
}
public string Compress(string inputString)
{
// Create the zip stream
System.IO.MemoryStream memstream = new System.IO.MemoryStream();
ICSharpCode.SharpZipLib.GZip.GZipOutputStream zipstream = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(memstream);
// Get the bytes of the input string
Byte[] buffer = System.Text.Encoding.Unicode.GetBytes(inputString);
// Write the bytes to the zipstream
zipstream.Write(buffer, 0, buffer.Length);
// Clean up
zipstream.Close();
memstream.Close();
// Get the Base64 representation of the compressed string
buffer = memstream.ToArray();
string Result = Convert.ToBase64String(buffer);
return Result;
}
/// <summary>
/// Compresses a byte array using the specified compression, and returns a compressed byte array.
/// </summary>
/// <param name="bytes">The input bytes to compress.</param>
/// <param name="offset">The amount of offset to apply to the byte array before beginning compression.</param>
/// <param name="length">The length of bytes to compress in the byte array.</param>
/// <param name="compressionType">Type of the compression to apply.</param>
/// <returns>A byte array representing the compressed byte array</returns>
public static byte[] CompressToBytes(byte[] bytes, int offset, int length, CompressionType compressionType)
{
if (bytes == null || bytes.Length == 0)
return new byte[0];
if (offset < 0)
throw new ArgumentOutOfRangeException("offset", "offset cannot be less than zero");
if (length > bytes.Length)
throw new ArgumentOutOfRangeException("length", "length cannot be greater than bytes.length");
if (length + offset > bytes.Length)
throw new ArgumentOutOfRangeException("length", "length + offset cannot be greater than bytes.length");
using (MemoryStream memoryStream = new MemoryStream()) {
switch (compressionType) {
case CompressionType.BZip:
using (ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream stream = new ICSharpCode.SharpZipLib.BZip2.BZip2OutputStream(memoryStream)) {
stream.Write(bytes, offset, length);
}
break;
case CompressionType.GZip:
using (ICSharpCode.SharpZipLib.GZip.GZipOutputStream stream = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(memoryStream)) {
stream.Write(bytes, offset, length);
}
break;
// case CompressionType.Tar:
// using (ICSharpCode.SharpZipLib.Tar.TarOutputStream stream = new ICSharpCode.SharpZipLib.Tar.TarOutputStream(memoryStream)) {
// ICSharpCode.SharpZipLib.Tar.TarEntry entry = ICSharpCode.SharpZipLib.Tar.TarEntry.CreateTarEntry("TarEntry");
// entry.Size = length;
// stream.PutNextEntry(entry);
// stream.Write(bytes, offset, length);
// stream.IsStreamOwner = false;
// stream.CloseEntry();
// }
// break;
case CompressionType.Zip:
using (ICSharpCode.SharpZipLib.Zip.Compression.Streams.DeflaterOutputStream stream = new ICSharpCode.SharpZipLib.Zip.Compression.Streams.DeflaterOutputStream(memoryStream)) {
stream.Write(bytes, offset, length);
}
break;
default:
return new byte[0];
}
return memoryStream.ToArray();
}
}
private int RecursivelyPersistLayer(XbimSqliteDB db, XbimMeshLayer<XbimMeshGeometry3D, XbimRenderMaterial> layer, int layerid, int parentLayerId)
{
try
{
// bytes contain 6 floats and 1 int
// pointX, pointY, pointZ, normalX, normalY, normalZ, entityLabel
// this is the vbo.
XbimTexture texture = layer.Style;
XbimColour c = layer.Style.ColourMap[0]; //take the first one, not perhaps correct or best practice
byte[] colour = new byte[4 * sizeof(float)];
MemoryStream ms = new MemoryStream(colour);
BinaryWriter bw = new BinaryWriter(ms);
bw.Write(c.Red);
bw.Write(c.Green);
bw.Write(c.Blue);
bw.Write(c.Alpha);
byte[] vbo = ((XbimMeshGeometry3D)layer.Hidden).ToByteArray();
MemoryStream memoryStream = new MemoryStream();
using (ICSharpCode.SharpZipLib.GZip.GZipOutputStream zis = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(memoryStream))
{
zis.Write(vbo, 0, vbo.Length);
memoryStream.Flush();
}
vbo = memoryStream.ToArray();
// bounding box
XbimRect3D bb = layer.BoundingBoxHidden();
byte[] bbArray = bb.ToFloatArray();
db.AddLayer(layer.Name, layerid, parentLayerId, colour, vbo, bbArray);
int myParent = layerid;
foreach (var subLayer in layer.SubLayers)
{
layerid++;
layerid = RecursivelyPersistLayer(db, subLayer, layerid, myParent);
}
return layerid;
}
catch (Exception ex)
{
throw new XbimException("Error building scene layer", ex);
}
}
private void CompresNowGZip()
{
Stream s = null;
Stream aux = new MemoryStream();
try
{
s = new ICSharpCode.SharpZipLib.GZip.GZipOutputStream(aux);
s.Write(this.m_byteinput, 0, (int)this.m_byteinput.Length);
(s as ICSharpCode.SharpZipLib.GZip.GZipOutputStream).Finish();
s.Flush();
}
catch (ZipException e)
{
this.m_byteoutput = null;
this.m_streamoutput = null;
Debug.WriteLine(e.Message);
}
finally
{
aux.Seek(0, SeekOrigin.Begin);
this.m_byteoutput = null;
this.m_byteoutput = new byte[aux.Length];
aux.Read(this.m_byteoutput, 0, (int)aux.Length);
this.m_streamoutput = null;
this.m_streamoutput = new MemoryStream(this.m_byteoutput);
//s.Close();
}
}