Exemplo n.º 1
0
        private void importUrl(PipelineContext ctx, IDatasourceSink sink, IStreamProvider elt)
        {
            int  splitUntil    = elt.ContextNode.ReadInt("@splituntil", this.splitUntil);
            bool objectPerLine = elt.ContextNode.ReadBool("@objectperline", this.objectPerLine);

            ctx.SendItemStart(elt);
            if ((ctx.ActionFlags & _ActionFlags.Skip) != 0)
            {
                return;
            }

            ExistState existState = ExistState.NotExist;

            if ((ctx.ImportFlags & _ImportFlags.ImportFull) == 0) //Not a full import
            {
                existState = toExistState(sink.HandleValue(ctx, "record/_checkexist", null));
            }

            //Check if we need to convert this file
            if ((existState & (ExistState.ExistSame | ExistState.ExistNewer | ExistState.Exist)) != 0)
            {
                ctx.Skipped++;
                ctx.ImportLog.Log("Skipped: {0}. Date={1}", elt, 0);// dtFile);
                return;
            }

            List <String> keys   = new List <string>();
            List <String> values = new List <String>();
            Stream        fs     = null;

            try
            {
                fs = elt.CreateStream(ctx);
                if (!this.objectPerLine)
                {
                    importRecord(ctx, sink, fs, splitUntil);
                }
                else
                {
                    byte[]       buf    = new byte[4096];
                    int          offset = 0;
                    MemoryStream tmp    = new MemoryStream();
                    while (true)
                    {
                        int len = offset + fs.Read(buf, offset, buf.Length - offset);
                        if (len == offset)
                        {
                            break;
                        }
                        int i = offset;
                        for (; i < len; i++)
                        {
                            if (buf[i] == '\n')
                            {
                                break;
                            }
                        }

                        tmp.Write(buf, offset, i - offset);
                        if (i == offset)
                        {
                            offset = 0;
                            continue;
                        }


                        if (tmp.Position > 0)
                        {
                            tmp.Position = 0;
                            importRecord(ctx, sink, tmp, splitUntil);
                            tmp.Position = 0;
                        }
                        if (i + 1 < offset)
                        {
                            tmp.Write(buf, i + 1, len - i - 1);
                        }
                    }
                    if (offset > 0)
                    {
                        tmp.Write(buf, 0, offset);
                    }
                    if (tmp.Position > 0)
                    {
                        tmp.Position = 0;
                        importRecord(ctx, sink, tmp, splitUntil);
                    }
                }
                ctx.OptSendItemStop();
            }
            catch (Exception e)
            {
                ctx.HandleException(e);
            }
        }
 protected virtual Stream _CreateStream(PipelineContext ctx, IStreamProvider elt)
 {
     return(elt.CreateStream(ctx));
 }