public static void Compress(string FileToCompress, string CompressedFile)
{
byte[] buffer = new byte[1024 * 1024]; // 1MB
using (System.IO.FileStream sourceFile = System.IO.File.OpenRead(FileToCompress))
{
using (System.IO.FileStream destinationFile = System.IO.File.Create(CompressedFile))
{
using (System.IO.Compression.GZipStream output = new System.IO.Compression.GZipStream(destinationFile,
System.IO.Compression.CompressionMode.Compress))
{
int bytesRead = 0;
while (bytesRead < sourceFile.Length)
{
int ReadLength = sourceFile.Read(buffer, 0, buffer.Length);
output.Write(buffer, 0, ReadLength);
output.Flush();
bytesRead += ReadLength;
} // Whend
destinationFile.Flush();
} // End Using System.IO.Compression.GZipStream output
destinationFile.Close();
} // End Using System.IO.FileStream destinationFile
// Close the files.
sourceFile.Close();
} // End Using System.IO.FileStream sourceFile
} // End Sub CompressFile
public void ProcessAction(Object eventObject)
{
lock (blacklistLock)
{
if(blacklist.Contains(eventObject))
{
blacklist.Remove(eventObject);
return;
}
}
var memoryStream = new MemoryStream();
var gzipStream = new GZipStream(memoryStream, CompressionMode.Compress);
var writer = new StreamWriter(gzipStream);
serializer.Serialize(writer, eventObject);
writer.Flush();
gzipStream.Flush();
memoryStream.Flush();
writer.Close();
gzipStream.Close();
memoryStream.Close();
var obj = new EventObject { MessageType = eventObject.GetType().AssemblyQualifiedName, MessageBody = memoryStream.ToArray(), SessionId = sessionId };
eventRepository.Save(obj);
}
public static byte[] GZCompress(byte[] source)
{
byte[] buffer;
if ((source == null) || (source.Length == 0))
{
throw new ArgumentNullException("source");
}
try
{
using (MemoryStream stream = new MemoryStream())
{
using (GZipStream stream2 = new GZipStream(stream, CompressionMode.Compress, true))
{
Console.WriteLine("Compression");
stream2.Write(source, 0, source.Length);
stream2.Flush();
stream2.Close();
Console.WriteLine("Original size: {0}, Compressed size: {1}", source.Length, stream.Length);
stream.Position = 0L;
buffer = stream.ToArray();
}
}
}
catch (Exception exception)
{
LoggingService.Error("GZip压缩时出错：", exception);
buffer = source;
}
return buffer;
}
public ManagedBitmap(string fileName)
{
try
{
byte[] buffer = new byte[1024];
MemoryStream fd = new MemoryStream();
Stream fs = File.OpenRead(fileName);
using (Stream csStream = new GZipStream(fs, CompressionMode.Decompress))
{
int nRead;
while ((nRead = csStream.Read(buffer, 0, buffer.Length)) > 0)
{
fd.Write(buffer, 0, nRead);
}
csStream.Flush();
buffer = fd.ToArray();
}
Width = buffer[4] << 8 | buffer[5];
Height = buffer[6] << 8 | buffer[7];
_colors = new Color[Width * Height];
int start = 8;
for (int i = 0; i < _colors.Length; i++)
{
_colors[i] = Color.FromArgb(buffer[start], buffer[start + 1], buffer[start + 2], buffer[start + 3]);
start += 4;
}
}
catch
{
LoadedOk = false;
}
}
public static void WriteGzip(XmlDocument theDoc, Stream theStream)
{
var ms = new MemoryStream();
var xmlSettings = new XmlWriterSettings
{
Encoding = Encoding.UTF8,
ConformanceLevel = ConformanceLevel.Document,
Indent = false,
NewLineOnAttributes = false,
CheckCharacters = true,
IndentChars = string.Empty
};
XmlWriter tw = XmlWriter.Create(ms, xmlSettings);
theDoc.WriteTo(tw);
tw.Flush();
tw.Close();
byte[] buffer = ms.GetBuffer();
var compressedzipStream = new GZipStream(theStream, CompressionMode.Compress, true);
compressedzipStream.Write(buffer, 0, buffer.Length);
// Close the stream.
compressedzipStream.Flush();
compressedzipStream.Close();
// Force a flush
theStream.Flush();
}
private static int Gzip(Stream stream, FileStream fs)
{
int length = 0;
using (var ms = new MemoryStream())
{
byte[] buffer = new byte[BufferSize];
int count;
using (var gzip = new GZipStream(ms, CompressionMode.Compress, true))
{
while ((count = fs.Read(buffer, 0, BufferSize)) > 0)
{
gzip.Write(buffer, 0, count);
}
gzip.Flush();
}
ms.Seek(0, SeekOrigin.Begin);
while ((count = ms.Read(buffer, 0, BufferSize)) > 0)
{
length += count;
stream.Write(buffer, 0, count);
}
stream.Flush();
}
return length;
}
private MemoryStream Compression(byte[] bytes)
{
MemoryStream ms = new MemoryStream();
GZipStream gzip = new GZipStream(ms, CompressionLevel.Optimal);
gzip.Write(bytes, 0, bytes.Length);
gzip.Flush();
gzip.Close();
return ms;
}
public static byte[] Zip(byte[] bytes)
{
using (var destination = new MemoryStream())
using (var gzip = new GZipStream(destination, CompressionLevel.Fastest, false))
{
gzip.Write(bytes, 0, bytes.Length);
gzip.Flush();
gzip.Close();
return destination.ToArray();
}
}
static public byte[] CompressGzip(byte[] original)
{
using var compressedStream = new System.IO.MemoryStream();
using var compressStream = new System.IO.Compression.GZipStream(
compressedStream, System.IO.Compression.CompressionMode.Compress);
compressStream.Write(original);
compressStream.Flush();
return(compressedStream.ToArray());
}
public static byte[] GZipCompress(byte[] source)
{
var memoryStream = new MemoryStream();
var stream = new GZipStream(memoryStream, CompressionMode.Compress);
stream.Write(source, 0, source.Length);
stream.Flush();
stream.Close();
//Console.WriteLine("GZip : {0}", memoryStream.ToArray().Length);
return memoryStream.ToArray();
}
public static void Save(ArpeggioDefinition arpeggio, string fileName)
{
Stream fileStream = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None);
GZipStream gzip = new GZipStream(fileStream, CompressionMode.Compress, true);
SerializationUtils.Serialize(arpeggio, gzip);
gzip.Flush();
gzip.Close();
fileStream.Close();
fileStream.Dispose();
}
public static byte[] Unzip(byte[] bytes)
{
using (var source = new MemoryStream(bytes))
using (var destination = new MemoryStream())
using (var gzip = new GZipStream(source, CompressionMode.Decompress, false))
{
gzip.CopyTo(destination);
gzip.Flush();
gzip.Close();
return destination.ToArray();
}
}
public static byte[] Compress(this byte[] data)
{
using (MemoryStream ms = new MemoryStream())
{
using (GZipStream zs = new GZipStream(ms, CompressionMode.Compress))
{
zs.Write(data, 0, data.Length);
zs.Flush();
}
return ms.ToArray();
}
}
/// <summary>
/// gzip压缩
/// </summary>
/// <param name="inputBytes"></param>
/// <returns></returns>
public static byte[] Compress(byte[] inputBytes)
{
using (MemoryStream ms = new MemoryStream(inputBytes.Length))
{
using (System.IO.Compression.GZipStream gzip = new System.IO.Compression.GZipStream(ms, System.IO.Compression.CompressionMode.Compress))
{
gzip.Write(inputBytes, 0, inputBytes.Length);
gzip.Flush();
gzip.Close();
}
return(ms.ToArray());
}
}
/// <summary>
/// 解压二进制流
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static byte[] Depress(byte[] data)
{
using (var memoryStream = new MemoryStream(data))
using (var outStream = new MemoryStream())
{
using (var compressionStream = new GZipStream(memoryStream, CompressionMode.Decompress))
{
compressionStream.CopyTo(outStream);
compressionStream.Flush();
}
return outStream.ToArray();
}
}
/// <summary>
/// 压缩二进制流
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static byte[] Compress(byte[] data)
{
using (var memoryStream = new MemoryStream())
{
using (var compressionStream = new GZipStream(memoryStream, CompressionMode.Compress))
{
compressionStream.Write(data, 0, data.Length);
compressionStream.Flush();
}
//必须先关了compressionStream后才能取得正确的压缩流
return memoryStream.ToArray();
}
}
public Stream Compress(string content)
{
var ms = new MemoryStream();
using (var zip = new GZipStream(ms, CompressionMode.Compress, true))
{
var buffer = Encoding.UTF8.GetBytes(content);
zip.Write(buffer, 0, buffer.Length);
zip.Flush();
}
ms.Position = 0;
return ms;
}
public static void WriteDataToRequest(HttpWebRequest req, string data)
{
req.SendChunked = true;
using (var requestStream = req.GetRequestStream())
using (var dataStream = new GZipStream(requestStream, CompressionMode.Compress))
using (var writer = new StreamWriter(dataStream, Encoding.UTF8))
{
writer.Write(data);
writer.Flush();
dataStream.Flush();
requestStream.Flush();
}
}
public StoredScript(String data, LighteningDataType dataType)
{
DataType = dataType;
Uncompressed = Encoding.UTF8.GetBytes(data);
using (MemoryStream result = new MemoryStream())
{
using (GZipStream gzStream = new GZipStream(result, CompressionLevel.Optimal, true))
{
gzStream.Write(Uncompressed, 0, Uncompressed.Length);
gzStream.Flush();
}
Compressed = result.ToArray();
}
}
/// <summary>
/// Compress the content of a stream. The
/// </summary>
/// <param name="data">Data to compress</param>
/// <param name="compressedData">Stream with the compressed data</param>
public static void Compress(ref Stream data, out Stream compressedData)
{
compressedData = new MemoryStream();
var compress = new GZipStream(compressedData, CompressionMode.Compress);
data.Position = 0;
var buffer = new byte[data.Length];
int n;
while ((n = data.Read(buffer, 0, buffer.Length)) != 0)
compress.Write(buffer, 0, n);
compress.Flush();
data.Close();
}
public static void FolderToFile(string srcPath, string dstFilePath) {
// list out name+hash -> [path]
// write this to a single file
// gzip that file
var tmp = dstFilePath+".tmp";
var bits = new Dictionary<string, List<string>>();
// find distinct files
var files = NativeIO.EnumerateFiles(new PathInfo(srcPath).FullNameUnc, searchOption: SearchOption.AllDirectories);
foreach (var file in files)
{
var name = file.Name;
var hash = HashOf(file);
Add(name + "|" + hash, file.FullName, bits);
}
// pack everything into a temp file
if (File.Exists(tmp)) File.Delete(tmp);
using(var fs = File.OpenWrite(tmp))
foreach (var key in bits.Keys)
{
var paths = bits[key];
var catPaths = Encoding.UTF8.GetBytes(string.Join("|", Filter(paths,srcPath)));
WriteLength(catPaths.Length, fs);
fs.Write(catPaths, 0, catPaths.Length);
var info = NativeIO.ReadFileDetails(new PathInfo(paths[0]));
WriteLength((long)info.Length, fs);
using (var inf = NativeIO.OpenFileStream(info.PathInfo, FileAccess.Read)) inf.CopyTo(fs);
fs.Flush();
}
// Compress the file
if (File.Exists(dstFilePath)) File.Delete(dstFilePath);
using (var compressing = new GZipStream(File.OpenWrite(dstFilePath), CompressionLevel.Optimal))
using (var cat = File.OpenRead(tmp))
{
cat.CopyTo(compressing, 65536);
compressing.Flush();
}
// Kill the temp file
File.Delete(tmp);
}
private void SaveConfig()
{
MemoryStream ms = new MemoryStream();
BinaryFormatter binFormat = new BinaryFormatter();
binFormat.Serialize(ms, config);
byte[] SerializeByte = ms.ToArray();
FileStream fs = new FileStream(@".\config.bin", FileMode.OpenOrCreate, FileAccess.Write, FileShare.None);
GZipStream compressedStream = new System.IO.Compression.GZipStream(fs, CompressionMode.Compress, true);
compressedStream.Write(SerializeByte, 0, SerializeByte.Length);
compressedStream.Flush();
compressedStream.Close();
fs.Close();
}
/// <summary>
/// 压缩
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string CompressString(string value)
{
byte[] byteArray = Encoding.UTF8.GetBytes(value);
byte[] tmpArray;
using (MemoryStream ms = new MemoryStream())
{
using (GZipStream sw = new GZipStream(ms, CompressionMode.Compress))
{
sw.Write(byteArray, 0, byteArray.Length);
sw.Flush();
}
tmpArray = ms.ToArray();
}
return Convert.ToBase64String(tmpArray);
}
/*
public Blib(string FileName)
{
if (System.IO.File.Exists(FileName))
Load(FileName);
else
{
_files = new List<File>();
Save(FileName);
}
}
*/
public void Save(string fileName)
{
FileStream f = System.IO.File.OpenWrite(fileName);
var gz = new GZipStream(f, CompressionLevel.Optimal);
gz.Write(BitConverter.GetBytes(_files.Count), 0, 4);
foreach (File file in _files)
{
byte[] binName = Encoding.Default.GetBytes(file.FileName);
gz.Write(BitConverter.GetBytes(binName.Length), 0, 4);
gz.Write(binName, 0, binName.Length);
gz.Write(BitConverter.GetBytes(file.Content.Length), 0, 4);
gz.Write(file.Content, 0, file.Content.Length);
}
gz.Flush();
gz.Close();
f.Close();
}
public static void WriteDataToRequest(HttpWebRequest req, string data, bool disableCompression)
{
req.SendChunked = true;
// we want to make sure that we use a buffer properly here so we won't send the data
// in many different TCP packets
using (var requestStream = new BufferedStream(req.GetRequestStream()))
using (var dataStream = new GZipStream(requestStream, CompressionMode.Compress))
using (var writer = disableCompression == false ?
new StreamWriter(dataStream, Encoding.UTF8) :
new StreamWriter(requestStream, Encoding.UTF8))
{
writer.Write(data);
writer.Flush();
if (disableCompression == false)
dataStream.Flush();
requestStream.Flush();
}
}
public static string Compress(string data)
{
MemoryStream decompressMS = new MemoryStream();
GZipStream zip = new GZipStream(decompressMS, CompressionMode.Compress);
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(data);
zip.Write(buffer, 0, buffer.Length);
zip.Flush();
zip.Close();
byte[] temp = decompressMS.ToArray();
string result = Convert.ToBase64String(temp);
decompressMS.Close();
return result;
}
/* INPUT 1:
../../Milioni.mp4
../../
5
INPUT 2:
../../text.txt
../../
3
* * * */
private static void Slice(string sourceFile, string destinationDirectory, int parts)
{
FileStream reader = new FileStream(sourceFile, FileMode.Open);
FileInfo file = new FileInfo(sourceFile);
long chunkSize = (long)(file.Length/parts);
BigInteger counter = -1;
if (file.Length%2 == 1)
{
counter = 0;
}
int fileCounter = 1;
int readBytesVariable = reader.ReadByte();
List<byte> lsBytes = new List<byte>();
lsBytes.Add((byte)readBytesVariable);
while (readBytesVariable != -1)
{
if ((counter%chunkSize == 0 && counter != 0) || counter == file.Length)
{
string fileName = destinationDirectory + "Part-" + fileCounter + ".gz";
FileStream writer = new FileStream(fileName, FileMode.Create,FileAccess.Write);
GZipStream gzip = new GZipStream(writer, CompressionMode.Compress);
gzip.Write(lsBytes.ToArray(), 0,lsBytes.Count);
gzip.Flush();
gzip.Dispose();
writer.Dispose();
lsBytes.Clear();
fileCounter++;
}
readBytesVariable = reader.ReadByte();
lsBytes.Add((byte)readBytesVariable);
counter++;
}
}
/// <summary>
/// ��ѹ������ ���ַ���
/// </summary>
/// <param name="compressedString">�ַ���</param>
public string dbsDeCompress(byte[] byteInput)
{
try
{
//string uncompressedString=string.Empty;
StringBuilder sb = new StringBuilder(409600);
int totalLength = 0;
// byte[] byteInput = System.Convert.FromBase64String(compressedString);
byte[] writeData = new byte[409600];
//Stream s = new GZipInputStream(new MemoryStream(byteInput));
//decompressedStream=newGZipStream(sourceStream,CompressionMode.Decompress,true);
Stream s = new GZipStream(new MemoryStream(byteInput), CompressionMode.Decompress, true);
while (true)
{
int size = s.Read(writeData, 0, writeData.Length);
if (size > 0)
{
totalLength += size;
sb.Append(System.Text.Encoding.UTF8.GetString(writeData, 0, size));
}
else
{
break;
}
}
s.Flush();
s.Close();
return sb.ToString();
}
catch
{
int u = 0;
return "";
}
}
private void WriteToBuffer(List<RavenJObject> localBatch)
{
using (var gzip = new GZipStream(bufferedStream, CompressionMode.Compress, leaveOpen: true))
{
var binaryWriter = new BinaryWriter(gzip);
binaryWriter.Write(localBatch.Count);
var bsonWriter = new BsonWriter(binaryWriter);
foreach (RavenJObject doc in localBatch)
{
doc.WriteTo(bsonWriter);
}
bsonWriter.Flush();
binaryWriter.Flush();
gzip.Flush();
}
}
/// <summary>
/// File-to-file buffered Compression
/// </summary>
/// <param name="sFileIn"></param>
/// <param name="sFileOut"></param>
/// <returns></returns>
public static bool CompressFile(String sFileIn, String sFileOut)
{
const int size = 8192;
byte[] buffer = new byte[size];
try {
using (FileStream fDecom = new FileStream(sFileIn, FileMode.Open, FileAccess.Read))
using (FileStream fCompr = new FileStream(sFileOut, FileMode.Create, FileAccess.Write))
using (GZipStream alg = new GZipStream(fCompr, CompressionMode.Compress)) {
int bytesRead = 0;
do {
// Read buffer
bytesRead = fDecom.Read(buffer, 0, buffer.Length);
// Write buffer away
if (bytesRead > 0) alg.Write(buffer, 0, bytesRead);
} while (bytesRead > 0);
// finish writing
alg.Flush();
alg.Close(); alg.Dispose();
// Finish reading
fCompr.Close();
fDecom.Close(); fDecom.Dispose();
}
// Return success
return true;
} catch (Exception ex) {
ErrHandle.HandleErr("CompressFile", ex);
// Return failure
return false;
}
}
private string httpRequest(String url, String POST = null)
{
WebRequest httpWebRequest = WebRequest.Create(url);
if (POST != null)
{
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(POST);
httpWebRequest.Method = "POST";
using (Stream request = httpWebRequest.GetRequestStream())
{
using (var zipStream = new GZipStream(request, CompressionMode.Compress))
{
zipStream.Write(bytes, 0, bytes.Length);
zipStream.Flush();
zipStream.Close();
}
request.Flush();
request.Close();
}
}
using (StreamReader streamReader = new StreamReader(httpWebRequest.GetResponse().GetResponseStream()))
{
return streamReader.ReadToEnd();
}
}
static long CompressStream(MemoryStream orgStream, string name)
{
orgStream.Seek(0, SeekOrigin.Begin);
var compressedData = new MemoryStream();
var gzip = new GZipStream(compressedData, CompressionMode.Compress);
orgStream.CopyTo(gzip);
gzip.Flush();
orgStream.Seek(0, SeekOrigin.Begin);
using (var fs = new FileStream(Path.Combine(@"C:\temp\comptest\", name + ".bin"), FileMode.Create, FileAccess.Write))
{
orgStream.CopyTo(fs);
}
return compressedData.Length;
}
public void Save(string path)
{
Stream.SetLength(0);
SaveTag(File);
using (GZipStream gStream = new GZipStream(new FileStream(path, FileMode.Create), CompressionMode.Compress))
{
Stream.CopyTo(gStream);
gStream.Flush();
}
}
public byte[] Serialize(Character character)
{
if (character == null) return null;
try
{
using (MemoryStream stream = new MemoryStream())
using (GZipStream gzip = new GZipStream(stream, CompressionMode.Compress))
{
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(gzip, character);
gzip.Flush();
gzip.Close();
return stream.GetBuffer();
}
}
catch (SerializationException ex)
{
Console.WriteLine(ex);
return null;
}
}