JLine

IntelliJ IDEA doesn't intercept JLine code completion in bebug mode

由 空扰寡人 提交于 2019-12-01 05:27:17
问题 I tried to run simple Java application wich is used code completion. When I run it in separate console it works like a charm. But when I try to it via IntelliJ IDEA, then my IDE doesn't intercept code completion actions in debug mode. I tried to add to my VM options -Djline.terminal=jline.UnsupportedTerminal But it doesn't help me. Maybe there is someone who faced with this problem? 回答1: jline.TerminalFactory.registerFlavor(TerminalFactory.Flavor.WINDOWS, jline.UnsupportedTerminal.class); 来源：

Java keyboard input parsing in a console app

由 ∥☆過路亽．° 提交于 2019-11-30 20:02:59
I've just started messing around with JLine to parse character input in console mode. It seems to work well, but I'm wondering: Is there a nonblocking way in JLine to find out if characters are available? (i.e. like kbhit() in Windows.) I suppose I could always wrap keyboard input in its own thread which then offers the keyboard characters in a thread-safe queue to the main thread, but that seems like it should be unnecessary. EDIT : This is character-by-character parsing. I am not going to use a GUI. The usual InputStream I/O in Java in console mode requires you to hit the Enter key first (e

Java keyboard input parsing in a console app

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-11-30 04:20:40
问题 I've just started messing around with JLine to parse character input in console mode. It seems to work well, but I'm wondering: Is there a nonblocking way in JLine to find out if characters are available? (i.e. like kbhit() in Windows.) I suppose I could always wrap keyboard input in its own thread which then offers the keyboard characters in a thread-safe queue to the main thread, but that seems like it should be unnecessary. EDIT : This is character-by-character parsing. I am not going to

readline-like library for Java [closed]

由 跟風遠走 提交于 2019-11-29 10:47:24
Which readline-like library for Java do you use? By 'readline' like library I mean library for editing console input, with support for history, tab-completion, and stuff like this. I'm looking for one, and I cannot choose from so many choices ( jLine -- unmaintained, java-readline -- last release on 2003, others?) I've used JLine to add history, etc. to a Clojure REPL (JVM process) when executed from the command line. It just magically worked and worked well, so I never bothered to investigate anything else. jruby has an internal readline you could probably call out to. 来源： https:/

readline-like library for Java [closed]

由 给你一囗甜甜゛ 提交于 2019-11-28 04:03:37
问题 Which readline-like library for Java do you use? By 'readline' like library I mean library for editing console input, with support for history, tab-completion, and stuff like this. I'm looking for one, and I cannot choose from so many choices (jLine -- unmaintained, java-readline -- last release on 2003, others?) 回答1: I've used JLine to add history, etc. to a Clojure REPL (JVM process) when executed from the command line. It just magically worked and worked well, so I never bothered to

1、Hive的简介、原理及安装

由 巧了我就是萌 提交于 2019-11-27 10:18:40
一、简介 Hive是一个SQL解析引擎，他可以将sql转化为 TEZ、mapreduce、spark 等计算框架并且提交到yarn等资源调度平台上进行计算。它借助于MySQL数据库对hdfs上的文件进行表的映射，从而知道表的文件格式、分区字段、字段类型等等信息。 切换引擎的方式 set hive.execution.engine=tez set hive.execution.engine=mr 二、主要用途 用来做离线数据分析，比直接用mapreduce开发效率更高，因为只需要写SQL语句，自定翻译成MapReduce。 三、原理 1、Hive中有一个引擎，用于解析SQL语句并且翻译成MapReduce程序。而sql语句可以来源于：web、cli、jdbc/odbc等。hive的元数据存储在一个数据库中（mysql、oracle等）其实就是一些映射关系，比如需要分析的数据在hdfs的哪里，按什么分段，有哪些字段等等。真正的分析数据在HDFS上。 2、使用的必要条件：用户必须指定：读取文件的方式（Hive 中默认有三个文件格式 TextFile，SequenceFile 以及 RCFile）、行分隔符、列分隔符。 四、安装 HIVE是一个hdfs的数据仓库工具，不是分布式的，直接解压就能够使用。 1、解压hive 2、解决一下版本不兼容问题：替换 /root/apps/hadoop
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