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  • how can I capture response from twitter.com? ( ruby + twitter gem)

    - by Radek
    how can I capture response from twitter.com? To make sure that everything went ok? I am using ruby and ruby twitter gem and the my code is basically like that oauth = Twitter::OAuth.new('consumer token', 'consumer secret') oauth.authorize_from_access('access token', 'access secret') client = Twitter::Base.new(oauth) client.update('Heeeyyyyoooo from Twitter Gem!')

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  • Dependency Injection: I don't get where to start!

    - by Andy
    I have several articles about Dependency Injection, and I can see the benefits, especially when it comes to unit testing. The units can me loosely coupled, and mocking of dependencies can be made. The trouble is - I just don't get where to start. Consider this snippet below of (much edited for the purpose of this post) code that I have. I am instantiating a Plc object from the main form, and passing in a communications mode via the Connect method. In it's present form it becomes hard to test, because I can't isolate the Plc from the CommsChannel to unit test it. (Can I?) The class depends on using a CommsChannel object, but I am only passing in a mode that is used to create this channel within the Plc itself. To use dependancy injection, I should really pass in an already created CommsChannel (via an 'ICommsChannel' interface perhaps) to the Connect method, or maybe via the Plc constructor. Is that right? But then that would mean creating the CommsChannel in my main form first, and this doesn't seem right either, because it feels like everything will come back to the base layer of the main form, where everything begins. Somehow it feels like I am missing a crucial piece of the puzzle. Where do you start? You have to create an instance of something somewhere, but I'm struggling to understand where that should be. public class Plc() { public bool Connect(CommsMode commsMode) { bool success = false; // Create new comms channel. this._commsChannel = this.GetCommsChannel(commsMode); // Attempt connection success = this._commsChannel.Connect(); return this._connected; } private CommsChannel GetCommsChannel(CommsMode mode) { CommsChannel channel; switch (mode) { case CommsMode.RS232: channel = new SerialCommsChannel( SerialCommsSettings.Default.ComPort, SerialCommsSettings.Default.BaudRate, SerialCommsSettings.Default.DataBits, SerialCommsSettings.Default.Parity, SerialCommsSettings.Default.StopBits); break; case CommsMode.Tcp: channel = new TcpCommsChannel( TCPCommsSettings.Default.IP_Address, TCPCommsSettings.Default.Port); break; default: // Throw unknown comms channel exception. } return channel; } }

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  • Should I add try/catch around when casting on an attribute of JSP implicit object?

    - by Michael Mao
    Hi all: Basically what I mean is like this: List<String[]> routes = (List<String[]>)application.getAttribute("routes"); For the above code, it tries to get an attribute named "routes" from the JSP implicit object - application. But as everyone knows, after this line of code, routes may very well contains a null - which means this application hasn't got an attribute named "routes". Is this "casting on null" good programming practice in Java or not? Basically I try to avoid exceptions such as java.io.InvalidCastException I reckon things like this are more as "heritage" of Java 1.4 when generic types were not introduced to this language. So I guess everything stored in application attributes as Objects (Similar to traditional ArrayList). And when you do "downcast", there might be invalid casts. What would you do in this case? Update: Just found that although in the implicit object application I did store a List of String arrays, when I do this : List<double[]> routes = (List<double[]>)application.getAttribute("routes"); It doesn't produce any error... And I felt not comfortable already... And even with this code: out.print(routes.get(0)); It does print out something strange : [Ljava.lang.String;@18b352f Am I printing a "pointer to String"? I can finally get an exception like this: out.print(routes.get(0)[1]); with error : java.lang.ClassCastException: [Ljava.lang.String; Because it was me to add the application attribute, I know which type should it be cast to. I feel this is not "good enough", what if I forget the exact type? I know there are still some cases where this sort of thing would happen, such as in JSP/Servlet when you do casting on session attributes. Is there a better way to do this? Before you say:"OMG, why you don't use Servlets???", I should justify my reason as this: - because my uni sucks, its server can only work with Servlets generated by JSP, and I don't really want to learn how to fix issues like that. look at my previous question on this , and this is uni homework, so I've got no other choice, forget all about war, WEB-INF,etc, but "code everything directly into JSP" - because the professors do that too. :)

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  • Reliability of UDP on localhost

    - by Bryan Ward
    I know that UDP is inherently unreliable, but when connecting to localhost I would expect the kernel handles the connection differently since everything can be handled internally. So in this special case, is UDP considered a reliable protocol, or will the kernel still potentially junk some packets if buffers are overrun?

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  • (C#) Tree sort, seeking some information.

    - by Sef
    Hello i am currently written a summary of all different kinds of sorting algorithems and their description/function/advantages & disadvantages. Although i have found everything i seek exept for tree sort. I can barely find anything at all about this subject. Some small description & algoritme / short&small program would be very much appreciated. Cheers.

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  • How can I pin a div in my sidebar column to the bottom?

    - by vg1890
    I have a simple two column layout with a footer at the bottom. When the content in the sidebar is taller than the content in the main column, everything looks great. But when the height of the main column is greater than the sidebar, I need the sidebar to grow to the same height as the main column and for the last <div> in the sidebar to be pinned to the very bottom. Here's my sample code: http://jsfiddle.net/mqnML/1/

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  • Is there a free pgp key dumping program?

    - by calccrypto
    is there any pgp key dumping program like http://www.pgpdump.net/ that also shows the MPI values as well as the other information? the linked website's program will print out ... for the long MPI, which is perfectly logical, but I want to see the values since my program is for some reason getting all but one part right (reading an elgamal public key), and its messing with everything that comes afterwards. i want to see where im off by a few bits

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  • The future of cloud computing? [closed]

    - by Vimvq1987
    As far as I know, cloud computing is growing rapidly. Amazon EC2, Google App Engine, Microsoft Windows Azure...But I can't imagine how cloud computing will change the world. Will cloud computing will play the main role in software industry? Will our data be stored at one place and then can be accessed from any where? Shall we need powerful PCs no more because everything will be processed at "cloud"? Thank you so much

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  • php 5.1.6 magic __toString method

    - by NachoF
    In codeigniter Im trying to use this plugin which requires I implement a toString method in my models. My toString method simply does return $this->name On my local machine with php 5.3 everything works just fine but on the production server with php 5.1.6 it shows "Object id#48" where the value of the name property of that object should appear..... I found something about the problem here but I still dont understand... How can I fix this?

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  • CodeIgniter, Unit Testing, and Continuous Integration

    - by blork
    As part of a University project, my team and I have to set up automated unit testing with CruiseControl.rb. We chose to use CodeIgniter for the project, and are having some problems getting everything working together. Does anyone have experience setting up such a configuration? Some of the unit testing frameworks we've tried are: PHPUnit SimpleTest Toast ...but we've had no success with any of them.

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  • Unresponsive Clojure REPL after exception

    - by Hendekagon
    If I start a REPL and then do something that throws an exception like (use 'non-existent-thing) ** then after that the REPL ceases to evaluate anything I enter. Is there a special key I can press to make it turn round, face me, uncross its arms and listen once more ? Or must I ctrl-d, restart, type everything up to where I was and get it right this time ? ** which results in: Exception in thread "Thread-1" java.lang.RuntimeException: java.io.FileNotFoundException: Could not locate non_existent_thing__init.class or non_existent_thing.clj on classpath: (NO_SOURCE_FILE:0)

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  • jVi in NetBeans

    - by Ockonal
    Hi guys. I'm choosing what to use: Eclipse or NetBeans. NetBeans has better vim plugin - jVi, but, as I see, it doesn't work with my own ~/.vimrc file. But in eclipse and VimPlugin for it everything is perfect. So are there any ways to use my vimrc settings for NetBeans with jVi?

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  • Strange Values in SYS.DM_TRAN_LOCKS table RESOURCE_ASSOCIATED_ENTITY_ID column

    - by AJM
    I’ve been trying to understand some strange values in the RESOURCE_ASSOCIATED_ENTITY_ID column of SYS.DM_TRAN_LOCKS when RESOURCE_TYPE is “OBJECT”. Although these should be object Ids, I cannot determine what object they actually refer to. I’ve tried everything I can think of, including querying all system tables with columns of type INT and BIGINT to see if I can find the value. No luck. The funny values actually appear in SYS.DM_TRAN_LOCKS, SYS.SYSLOCKINFO and SP_LOCK.

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  • google oauth callback

    - by Ben None
    Setting oauth with some providers is always kind of weird; currently hitting a problem concerning the callback, i had made everything work very nicely with google, getting redirected back specifying the callback url in both the get_request_token and redirect url param oauth_callback= but it then for some reason stopped redirecting, i'm currently stuck with the pin to specify over at google. I seeking explanations about this, if anybody went through the same kind of problem. thx

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  • What's the case when using software licensed under GPL or LGPL

    - by Johnas
    With everything legal and in line with the ethical questions in software development, is it allowed to use an open source product in my software that I charge a fee for when selling? Scenario: I've developed an PHP Content Management System (CMS) and use some Linux executables licensed under GPL or LGPL in my CMS to accomplish various tasks like image editing. I'm selling the CMS and also including the executables when I deliver the product. I do not edit the source code of the GPL software, just using it.

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  • JAVA - Strange problem (probably thread problem) with JTable & Model

    - by Stefanos Kargas
    I am using 2 Tables (JTable) with their DefaultTableModels. The first table is already populated. The second table is populated for each row of the first table (using an SQL Query). My purpose is to export every line of the first table with it's respective lines of the second in an Excel File. I am doing it with a for (for each line of 1st table), in which I write a line of the 1st table in the Excel File, then I populate the 2nd table (for this line of 1st Table), I get every line from the Table (from it's Model actually) and put it in the Excel File under the current line of 1st table. This means that if I have n lines in first table I will clear and populate again the second table n times. All this code is called in a seperate thread. THE PROBLEM IS: Everything works perfectly fine ecxept that I am getting some exceptions. The strange thing is that I'm not getting anything false in my result. The Excel file is perfect. Some of the lines of the exceptions are: Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 = 0 at java.util.Vector.elementAt(Vector.java:427) at javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:632) at javax.swing.JComponent.paint(JComponent.java:1017) at javax.swing.RepaintManager.paint(RepaintManager.java:1220) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:803) I am assuming that the problem lies in the fact that the second table needs some more time to be populated before I try to get any data from it. That's why I see RepaintManager and paintDirtyRegions in my exceptions. Another thing I did is that I ran my program in debug mode and I put a breakpoint after each population of the 2nd table. Then I pressed F5 to continue for each population of 2nd table and no exception appeared. The program came to it's end without any exceptions. This is another important fact that tells me that maybe in this case I gave the table enough time to be populated. Of course you will ask me: If your program works fine, why do you care about the exceptions? I care for avoiding any future problems and I care to have a better understanding of Java and Java GUI and threads. Why do you depend on a GUI component (and it's model) to get your information and why don't you recreate the resultset that populates your tables using an SQL Query and get your info from the resultset? That would be the best and the right way. The fact is that I have the tables code ready and it was easier for me to just get the info from them. But the right way would be to get everything direct from database. Anyway what I did brought out my question, and answering it would help me understand more things about java. So I posted it.

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  • asp.net mvc & jquery dialog: What approach do I take to add items to a dropdownlist/select list with

    - by Mark Redman
    Hi, I am new to MVC and have a grasp of the basic model, but still doing everything with postbacks etc. One aspect of the UI I want to build is to have a drop-down-list of items with a button to add an item to the database and refresh the list. Achieving this with WebForms was straight forward as everything was wrapped in UpdatePanels, but what is the best approach to achieve this using MVC? Part of the markup for the list and button look like this: <table> <tr> <td><%=Html.DropDownList("JobTitleSelectList", Model.JobTitleSelectList, "(select job title)", new { @class = "data-entry-field" })%></td> <td>&nbsp;</td> <td><a id="AddJobTitleDialogLink" href="javascript: addJobTitleDialog();" title="Add Job Title"><img id="AddJobTitleButtonImage" src="/Content/Images/Icons/16x16/PlusGrey.png" border="0" /></a></td> </tr> </table> The Dialog is a standard jquery Ui dialog, looks like this: <div id="SingleTextEntryDialog" style="display:none"> <table> <tr> <td>Name:</td> <td><input id="SingleTextEntryDialogText" type="text" size="25" /></td> </tr> </table> </div> I am guessing I need to put this into a UserControl / PartialView (are they the same thing?) Also with the strongly typed View how do I pass the Model or just the SelectList Property to the UserControl or is this not the case? Nor sure if there should be form in the dialog div? or how that is going to postback via ajax. Some examples show a lot of ajax code in the page something like: $.ajax({...}); I assume doing this using jquery is more code than asp.net webforms, but there is just more code to see doing a "View Source" on a page? Your comments appreciated.

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  • How to start a ColorAnimation from a MultiTrigger in a ControlTemplate ?

    - by banzai
    Hi all I have the following ControlTemplate for a WPF TabItem: <ControlTemplate x:Key="DefaultTabItemTemplate" TargetType="{x:Type TabItem}"> <ControlTemplate.Resources> <SolidColorBrush x:Key="UnselectedForegroundBrush" Color="#414141" /> <!-- Unique color for this template --> <SolidColorBrush x:Key="SelectedForegroundBrush" Color="#457581" /> <!-- Unique color for this template --> <SolidColorBrush x:Key="MouseOverTextBrush" x:Name="local_MouseOverTextBrush" Color="#FFF2F2F2"/> </ControlTemplate.Resources> <Grid> <Border Name="Border" MinHeight="30" Margin="0,0,0,-1" Background="{DynamicResource TabControlBackgroundBrush}" BorderBrush="{DynamicResource ndt_DisabledForegroundBrush}" BorderThickness="1,1,1,1" CornerRadius="0,0,0,0" > <ContentPresenter x:Name="ContentSite" VerticalAlignment="Center" HorizontalAlignment="Center" TextElement.FontStretch="UltraExpanded" TextElement.FontWeight="UltraBlack" ContentSource="Header" Margin="12,2,12,2" RecognizesAccessKey="True" /> </Border> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter Property="Panel.ZIndex" Value="2" /> <Setter TargetName="Border" Property="Background" Value="{DynamicResource ndt_TabControlBackgroundBrush}" /> <Setter TargetName="Border" Property="BorderThickness" Value="1,1,1,0" /> <Setter TargetName="ContentSite" Property="TextElement.Foreground" Value="{StaticResource SelectedForegroundBrush}" /> </Trigger> <Trigger Property="IsEnabled" Value="False"> <Setter TargetName="Border" Property="Background" Value="{DynamicResource ndt_DisabledBackgroundBrush}" /> <Setter TargetName="ContentSite" Property="TextElement.Foreground" Value="{DynamicResource ndt_DarkGray}" /> <Setter Property="Foreground" Value="{DynamicResource ndt_DisabledForegroundBrush}" /> </Trigger> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsMouseOver" Value="True" /> <Condition Property="IsSelected" Value="False" /> </MultiTrigger.Conditions> <Setter TargetName="Border" Property="Background" Value="{DynamicResource ndt_NavigationAreaBrush}" /> <Setter TargetName="ContentSite" Property="TextElement.Foreground" Value="{DynamicResource MouseOverTextBrush}" /> </MultiTrigger> </ControlTemplate.Triggers> </ControlTemplate> Everything works fine so far. The MultiTrigger at the end of the template defines a mouse over effect for not selected TabItems. Now I thought the change in color for this mouse over effect looks a bit brash so let´s animate it with a ColorAnimation. But don´t count the chickens before they hatch - everything I tried didn´t work. Maybe I oversee the obvious - but how to achieve this feat ? Thanks in advance banzai

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  • How to correctly cache images

    - by James Simpson
    I just installed Google's Page Speed plugin to Firebug, and everything looks good except for caching. I have set headers to cache my JS and CSS files, but it says the images aren't being cached. How can I make sure the images get cached for 30 days? These are static images, so I can't just add the headers with PHP like I did with the other files.

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  • TextBox is not showing new value in code-behind

    - by coure06
    I have created a asp:TextBox. its disabled. but its values is changed via javascript. When i click a button to get the updated value in that textbox it always show me empty (""). In my Page_Load i am doing everything in if(!Page.IsPostBack) so there is no chance of updating TextBox value on postback in Page_Load. Where i could be wrong? how can i get updated value?

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  • how write this in verbatim latex

    - by voodoomsr
    hi, i have a little question about the verbatim environment in latex..... my problem is how can i write "\end{verbatim}" inside of a verbatim environment, it supposed that everything inside a verbatim is written just like it looks but this is the string to end the environment, so how can i do this?

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