loading

I have a log file in HDFS, values are delimited by comma. For example: 2012-10-11 12:00,opened_browser,userid111,deviceid222 Now I want to load this file to Hive table which has columns "timestamp","action" and partitioned by "userid","deviceid". How can I ask Hive to take that last 2 columns in log file as partition for table? All examples e.g. "hive> LOAD DATA INPATH '/user/myname/kv2.txt' OVERWRITE INTO TABLE invites PARTITION (ds='2008-08-15');" require definition of partitions in the script, but I want partitions to set up automatically from HDFS file. The one solution is to create

I'm working on a game engine and I'm too much of a wuss to write image loaders for multiple formats, so my question is this: Is there an abstracted image loading library to load image files? I just need to load files then splat them on to the screen using an array of pixels. NG. I'm always a fan of CImg . It's very easy to use. Another user liked the answer as well. I'll post the same example I posted in the answer so you can see how easy it is to access pixels and dimension info. CImg<unsigned char> src("image.jpg"); int width = src.width(); int height = src.height(); unsigned char* ptr = src

I’m still relatively new to Flask, and a bit of a web noob in general, but I’ve had some good results so far. Right now I’ve got a form in which users enter a query, which is given to a function that can take anywhere between 5 and 30 seconds to return a result (looking up data with the Freebase API). The problem is that I can’t let the user know that their query is loading during this time, as the results page only loads once the function finishes its work. Is there a way I can display a loading message while that's going on? I found some Javascript that could display a loading message while

The goal is to display the information that the application is working. So I'm looking for an intelligent implementation sample of a loading spinner using WPF / MVVM. I wrote this user control which may help, it will display messages with a progress bar spinning to show it is currently loading something. <ctr:LoadingPanel x:Name="loadingPanel" IsLoading="{Binding PanelLoading}" Message="{Binding PanelMainMessage}" SubMessage="{Binding PanelSubMessage}" ClosePanelCommand="{Binding PanelCloseCommand}" /> It has a couple of basic properties that you can bind to. HAdes To get this: Stick this in a

I'd like to create a project that has a very flexible graphical user interface ( skinnable ). In order to make this possible, I'd like to load a NSBundle from an external resource, e.g. a website. The bundle should contain nibs that correspond to some properties and methods in the main project (IBOutlets & IBActions) It seems Apple has limited the possibility to use NSBundle in such a way. Is there any way I can make this work? If it's not possible in the conventional way, what would be a recommendable alternate approach? untested. You can distribute all the content in a zip file, unzip using

This is a little hard to explain, So I'll try my best So while a HTML page loads, I'd like there to be a cool loading screen going on. When it finishes loading, I want the loading screen to clear and the HTML document to be shown. Basically, I want This: CSS: /* Absolute Center CSS Spinner */ .loading { position: fixed; z-index: 999; height: 2em; width: 2em; overflow: show; margin: auto; top: 0; left: 0; bottom: 0; right: 0; } /* Transparent Overlay */ .loading:before { content: ''; display: block; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.3);

想必大家对于jQuery这个最流行的JavaScript类库都不陌生，而且只要是前端开发人员肯定或多或少的使用或者接触过，在今天的这篇文章中，我们将介绍一些书写高质量jQuery代码的原则，我们不单单会告诉你如何去书写，也会告诉你为什么这样书写，希望大家会觉得有所帮助。 注意定义jQuery变量的时候添加var关键字 这个不仅仅是jQuery，所有JavaScript开发过程中，都需要注意， 请一定不要 定义成如下： $loading = $('#loading'); //这个是全局定义，不知道哪里位置倒霉引用了相同的变量名，就会郁闷至死的 如果你定义成这样的话，运气好，可能没有任何问题，或者出现一个绝对会让你debug一周，然后骂娘一个月的问题。 请使用一个var来定义变量 如果你使用多个变量的话，请如下方式定义： var page = 0, $loading = $('#loading'), $body = $('body'); 不要给每一个变量都添加一个var关键字，除非你有严重的强迫症。 定义jQuery变量 申明或者定义变量的时候，请记住如果你定义的是jQuery的变量，请添加一个$符号到变量前，如下： var $loading = $('#loading'); 这里定义成这样的好处在于，你可以有效的提示自己或者其它阅读你代码的用户，这是一个jQuery的变量。