reader

I know I can get the :line and :file from the metadata on a var; however, I'm building a system where the user can pass me raw maps and I will end up "linking" the data together at a later time. When this linkage fails, I'd like to report the file/line in which they specified the map. E.g.: (defn generate-stuff [] (make-thing { :k (make-thing { :k v }) })) (link (generate-stuff) (other-generator)) ;; outputs file/line of the map containing the errant :k/v pair I assume that writing a macro to associate file/line with the collection's metadata is almost certainly the way to go, but since there

I´ve been trying to read several csv files (arround 20 MB) using openCSV, but so far it has been slow. Im trying to read 4 csv files which I´m loading into a heap, which I have designed. I was wondering, if there is any other way this could be done in a lot less time. private Heap<VOMovingViolations> datosHeap; public void loadMovingViolations() { Runtime garbage = Runtime.getRuntime(); garbage.gc(); try { FileReader fileReaderMes1 = new FileReader(FECHAS[0]); FileReader fileReaderMes2 = new FileReader(FECHAS[1]); FileReader fileReaderMes3 = new FileReader(FECHAS[2]); FileReader fileReaderMes4

I am trying to create a pdf viewer inside qt using Adobe Readers ActiveX, but it requires to install Adobe Reader, so is it possible without installing Adobe reader we can create pdf viewer QtPdf module in the Qt Labs. It comes with a Widgets-based PdfViewer example, which works out of the box. It can be easily incorporated into any Qt app - We are incorporating it into one if our QML applications, by creating a wrapper. Qt blog announcement here . 来源： https://stackoverflow.com/questions/44521053/pdf-viewer-in-qt

Good day everyone, I would like to ask on how to write in Smartcard. I just rely on the example given on the documentation but it only has read tag. I follow the examples here in https://github.com/danm-de/pcsc-sharp/blob/master/Examples/Transmit/Program.cs using System; using PCSC; using PCSC.Iso7816; namespace Transmit { public class Program { public static void Main() { using (var context = new SCardContext()) { context.Establish(SCardScope.System); var readerNames = context.GetReaders(); if (readerNames == null || readerNames.Length < 1) { Console.WriteLine("You need at least one reader in

1. Readers and writers are like input streams and output streams. The primary difference lies in the fundamental datatype that is read or written; streams are byte-oriented, whereas readers and writers use characters and strings. 2. The reason for this is internationalization. Readers and writers were designed to allow programs to use a localized character set and still have a stream-like model for communicating with external devices. 3. These are analogous to the read( ) methods defined for InputStream. For example, read( ) still returns an integer. The difference is that, instead of data

1.什么是DataX 2. DataX的设计 为了解决异构数据源同步问题，DataX将复杂的网状的同步链路变成了星型数据链路，DataX作为中间传输载体负责连接各种数据源。当需要接入一个新的数据源的时候，只需要将此数据源对接到DataX，便能跟已有的数据源做到无缝数据同步。 DataX本身作为离线数据同步框架，采用Framework + plugin架构构建。将数据源读取和写入抽象成为Reader/Writer插件，纳入到整个同步框架中。 Reader：数据采集模块，负责采集数据源的数据，将数据发送给Framework。 Writer：数据写入模块，负责不断向Framework取数据，并将数据写入到目的端。 Framework：用于连接reader和writer，作为两者的数据传输通道，并处理缓冲，流控，并发，数据转换等核心技术问题。 　　前置要求 　　　　- Linux 　　　　- JDK(1.8以上，推荐1.8) 　　　　- Python(推荐Python2.6.X) 　　　　1）将下载好的datax.tar.gz上传到hadoop101的/opt/software 　　　　　　[kris@hadoop101 software]$ ls 　　　　　　　　datax.tar.gz 　　　　2）解压datax.tar.gz到/opt/module 　　　　　　[kris

I have a file with multiple rows. I need to read more than one rows based on some column value and pass it to Processor as List. Sample Input file is: 2|joe|24|CA 2|sam|32|MA 2|joe|44|CA 3|amy|21|CA The file is sorted based on first field. I wanted to pass first three rows to processor as List<item> then last row as separate List<item> Is it something we can do with CustomItemReader? Regards, Shankar 来源： https://stackoverflow.com/questions/31832341/custom-itemreader-to-return-more-than-one-rowsbased-on-some-column-value-to-it