示例#1
0
    public static void JoinFile(string inputFile, string outputFile, KsSplitJoinHandler handler)
    {
        long rwIncrament=500000;//updateInterval=400000, updateIndex=0;
        FileInfo fInfo=new FileInfo(inputFile);
        long iLen=fInfo.Length;
        FileStream ifs=new FileStream(inputFile, FileMode.Open);
        BinaryReader reader=new BinaryReader(ifs);
        //bool cont;

        FileInfo fi=new FileInfo(outputFile);
        FileMode fm=FileMode.Append;
        if(!fi.Exists) fm=FileMode.CreateNew;
        FileStream ofs=new FileStream(outputFile, fm);
        BinaryWriter writer=new BinaryWriter(ofs);

        long i=0, cnt;
        while(i<iLen) {
            cnt=rwIncrament;
            if((i+cnt)>=iLen) cnt=iLen-i;
            //byte val[cnt];
            writer.Write(reader.ReadBytes((int)cnt));
            i+=cnt;
            if(!handler.OnUpdate(inputFile, outputFile, i, iLen)) {
                ifs.Close(); reader.Close();
                ofs.Close(); writer.Close();
                handler.OnCanceled(inputFile, outputFile, i, iLen);
                return;
            }
        }

        ifs.Close(); reader.Close();
        ofs.Close(); writer.Close();
        handler.OnFinished(inputFile, outputFile, i, iLen);
    }
示例#2
0
    public static void SplitFile(string inputFile, string outputDir, string outputPrefix, long chunkSizeInBytes, KsSplitJoinHandler handler)
    {
        string outputFile="";
        if(!outputDir.EndsWith("\\")) outputDir+="\\";

        FileInfo fInfo=new FileInfo(inputFile);
        long i, iLen=fInfo.Length, pos=0, len, cnt=0, cnt2, rwIncrament=500000;
        FileStream ifs=new FileStream(inputFile, FileMode.Open, FileAccess.Read);
        BinaryReader reader=new BinaryReader(ifs);

        while (pos<iLen) {
            cnt++;
            outputFile=outputDir+outputPrefix+".ksChunk"+cnt.ToString().PadLeft(3, '0');
            FileStream ofs=new FileStream(outputFile, FileMode.Create);
            BinaryWriter writer=new BinaryWriter(ofs);
            len=chunkSizeInBytes;
            if(pos<1) len-=200;
            if((pos+len)>iLen) len=(iLen-pos);

            i=0;
            while(i<len) {
                cnt2=rwIncrament;
                if((i+cnt2)>=len) cnt2=len-i;
                writer.Write(reader.ReadBytes((int)cnt2));
                i+=cnt2;
                pos+=cnt2;
                if(!handler.OnUpdate(inputFile, outputFile, pos, iLen)) {
                    reader.Close(); ifs.Close();
                    writer.Close(); ofs.Close();
                    handler.OnCanceled(inputFile, outputFile, pos, iLen);
                    return;
                }
            }

            writer.Close();
            ofs.Close();
            if(!handler.OnUpdate(inputFile, outputFile, pos, iLen)) {
                reader.Close(); ifs.Close();
                handler.OnCanceled(inputFile, outputFile, pos, iLen);
                return;
            }

        }

        reader.Close(); ifs.Close();
        SaveAutoJoinFile(outputDir+outputPrefix+".ksAutoJoin", (int)cnt, (int)iLen);

        handler.OnFinished(inputFile, outputFile, pos, iLen);
    }
示例#3
0
 public static void SplitFile(string inputFile, string outputDir, long chunkSize, chunkSizeType chunkSizeTyp, KsSplitJoinHandler handler)
 {
     FileInfo fi=new FileInfo(inputFile);
     SplitFile(inputFile, outputDir, fi.Name, GetSizeInBytes(chunkSize, chunkSizeTyp), handler);
 }
示例#4
0
 public static void SplitFile(string inputFile, string outputDir, string outputPrefix, long chunkSize, chunkSizeType chunkSizeTyp, KsSplitJoinHandler handler)
 {
     SplitFile(inputFile, outputDir, outputPrefix, GetSizeInBytes(chunkSize, chunkSizeTyp), handler);
 }