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  • Unit of measurement API in Java?

    - by Carlos P
    JSR-275 has been rejected, the Units of Measurement API for Java project is a set of interfaces, but haven't found an open source implementation. On this post: Which jsr-275 units implementation should be used? the project owner mentions the implementation was going to be ready by the end of last year on JScience, but didn't find anything there to convert between weight or length units and when I looked for JScience on https://maven.java.net/, I found it, but the JAR wasn't even in the directory https://maven.java.net/content/repositories/snapshots/org/jscience/jscience/5.0-SNAPSHOT/, so I had to get it from somewhere else. Has this project been left behind? And is there currently an implementation for conversion of Units of measurement in Java and even perhaps a Maven repo?

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  • Jquery .Ajax error when trying to POST data in MVC C#

    - by GB
    Hello, I am unable to access an action in my controller using .ajax. The code works on my development machine but as soon as I place it on the server it gives the error 401 Unauthorized. Here is a snippet of the code in the .aspx file... var encoded = $.toJSON(courseItem); $.ajax({ url: '<%= Url.Action("ViewCourseByID", "Home") %>/', type: "POST", dataType: 'json', data: encoded, //contentType: "application/json; charset=utf-8", success: function(result) { Thank you for the help.

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  • Visual Studio 2010: highlight CSS text and comment

    - by pcampbell
    Consider a snippet of from a .css file in Visual Studio 2010 to be commented out. Normally Ctrl-E + Ctrl-C will comment your selected HTML and other source code. Highlighting CSS code results in: The key combination is bound to command (Comment Selection) which is not currently available. To comment CSS in Visual Studio 2010, is there a toolbar or keyboard shortcut to comment the highlighted text for you?

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  • How do I convert RGB into HSV in Cocoa Touch?

    - by Evelyn
    I want to set the background color of a label using HSV instead of RGB. How do I implement this into code? Code: //.m file #import "IBAppDelegate.h" @implementation IBAppDelegate @synthesize label; { self.label.backgroundColor = [UIColor colorWithRed:1.0f green:0.8f blue:0.0f alpha:1.0f]; }

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  • Recycling a project name?

    - by deamon
    I want to start an open source project, but my favourite project name was already used for a framework with the same goal. This project was never popular, had only two active days with commits at Google Code and is dead since then. With other words: the project is irrelevant but the name is in use at Google Code and ohloh (the same dead project). The .org domain is available. Would it be ok to reuse this project name?

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  • The confusion on python encoding

    - by zhangzhong
    I retrieved the data encoded in big5 from database,and I want to send the data as email of html content, the code is like this: html += """<tr><td>""" html += """unicode(rs[0], 'big5')""" # rs[0] is data encoded in big5 I run the script, but the error raised: UnicodeDecodeError: 'ascii' codec can't decode byte...... However, I tried the code in interactive python command line, there are no errors raised, could you give me the clue?

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  • Using JavaScript to parse an XML file

    - by Chris Clouten
    I am new to Stack OverFlow and coding in general. I am trying to take an XML file and render it in the browser using JavaScript. I have looked around at some sample code of how to do this and came up with the following code: <!DOCTYPE html> <html> <body> <script> if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","social.xml",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; document.write("<table border='1'>"); var x=xmlDoc.getElementsByTagName("CD"); for (i=0;i<x.length;i++) { document.write("<tr><td>"); document.write(x[i].getElementsByTagName("c_id")[0].childNodes[0].nodeValue); document.write("</td><td>"); document.write(x[i].getElementsByTagName("facebook_id")[0].childNodes[0].nodeValue); document.write("</td></tr>"); } document.write("</table>"); </script> </body> </html> Anyway, when I run this on my local server none of the data that I am trying to display in the table appears. My .html file and .xml file are in the same folder, so I believe I have the correct file pathway. I could just be making a rookie mistake here, but I can't for the life of me figure out why a table listing the c_id and facebook_id values is not being created. I looked around for answers and haven't been able to find any. Any help would be greatly appreciated. Thanks!

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  • Implementing a robust async stream reader for a console

    - by Jon
    I recently provided an answer to this question: C# - Realtime console output redirection. As often happens, explaining stuff (here "stuff" was how I tackled a similar problem) leads you to greater understanding and/or, as is the case here, "oops" moments. I realized that my solution, as implemented, has a bug. The bug has little practical importance, but it has an extremely large importance to me as a developer: I can't rest easy knowing that my code has the potential to blow up. Squashing the bug is the purpose of this question. I apologize for the long intro, so let's get dirty. I wanted to build a class that allows me to receive input from a Stream in an event-based manner. The stream, in my scenario, is guaranteed to be a FileStream and there is also an associated StreamReader already present to leverage. The public interface of the class is this: public class MyStreamManager { public event EventHandler<ConsoleOutputReadEventArgs> StandardOutputRead; public void StartSendingEvents(); public void StopSendingEvents(); } Obviously this specific scenario has to do with a console's standard output. StartSendingEvents and StopSendingEvents do what they advertise; for the purposes of this discussion, we can assume that events are always being sent without loss of generality. The class uses these two fields internally: protected readonly StringBuilder inputAccumulator = new StringBuilder(); protected readonly byte[] buffer = new byte[256]; The functionality of the class is implemented in the methods below. To get the ball rolling: public void StartSendingEvents(); { this.stopAutomation = false; this.BeginReadAsync(); } To read data out of the Stream without blocking, and also without requiring a carriage return char, BeginRead is called: protected void BeginReadAsync() { if (!this.stopAutomation) { this.StandardOutput.BaseStream.BeginRead( this.buffer, 0, this.buffer.Length, this.ReadHappened, null); } } The challenging part: BeginRead requires using a buffer. This means that when reading from the stream, it is possible that the bytes available to read ("incoming chunk") are larger than the buffer. Since we are only handing off data from the stream to a consumer, and that consumer may well have inside knowledge about the size and/or format of these chunks, I want to call event subscribers exactly once for each chunk. Otherwise the abstraction breaks down and the subscribers have to buffer the incoming data and reconstruct the chunks themselves using said knowledge. This is much less convenient to the calling code, and detracts from the usefulness of my class. Edit: There are comments below correctly stating that since the data is coming from a stream, there is absolutely nothing that the receiver can infer about the structure of the data unless it is fully prepared to parse it. What I am trying to do here is leverage the "flush the output" "structure" that the owner of the console imparts while writing on it. I am prepared to assume (better: allow my caller to have the option to assume) that the OS will pass me the data written between two flushes of the stream in exactly one piece. To this end, if the buffer is full after EndRead, we don't send its contents to subscribers immediately but instead append them to a StringBuilder. The contents of the StringBuilder are only sent back whenever there is no more to read from the stream (thus preserving the chunks). private void ReadHappened(IAsyncResult asyncResult) { var bytesRead = this.StandardOutput.BaseStream.EndRead(asyncResult); if (bytesRead == 0) { this.OnAutomationStopped(); return; } var input = this.StandardOutput.CurrentEncoding.GetString( this.buffer, 0, bytesRead); this.inputAccumulator.Append(input); if (bytesRead < this.buffer.Length) { this.OnInputRead(); // only send back if we 're sure we got it all } this.BeginReadAsync(); // continue "looping" with BeginRead } After any read which is not enough to fill the buffer, all accumulated data is sent to the subscribers: private void OnInputRead() { var handler = this.StandardOutputRead; if (handler == null) { return; } handler(this, new ConsoleOutputReadEventArgs(this.inputAccumulator.ToString())); this.inputAccumulator.Clear(); } (I know that as long as there are no subscribers the data gets accumulated forever. This is a deliberate decision). The good This scheme works almost perfectly: Async functionality without spawning any threads Very convenient to the calling code (just subscribe to an event) Maintains the "chunkiness" of the data; this allows the calling code to use inside knowledge of the data without doing any extra work Is almost agnostic to the buffer size (it will work correctly with any size buffer irrespective of the data being read) The bad That last almost is a very big one. Consider what happens when there is an incoming chunk with length exactly equal to the size of the buffer. The chunk will be read and buffered, but the event will not be triggered. This will be followed up by a BeginRead that expects to find more data belonging to the current chunk in order to send it back all in one piece, but... there will be no more data in the stream. In fact, as long as data is put into the stream in chunks with length exactly equal to the buffer size, the data will be buffered and the event will never be triggered. This scenario may be highly unlikely to occur in practice, especially since we can pick any number for the buffer size, but the problem is there. Solution? Unfortunately, after checking the available methods on FileStream and StreamReader, I can't find anything which lets me peek into the stream while also allowing async methods to be used on it. One "solution" would be to have a thread wait on a ManualResetEvent after the "buffer filled" condition is detected. If the event is not signaled (by the async callback) in a small amount of time, then more data from the stream will not be forthcoming and the data accumulated so far should be sent to subscribers. However, this introduces the need for another thread, requires thread synchronization, and is plain inelegant. Specifying a timeout for BeginRead would also suffice (call back into my code every now and then so I can check if there's data to be sent back; most of the time there will not be anything to do, so I expect the performance hit to be negligible). But it looks like timeouts are not supported in FileStream. Since I imagine that async calls with timeouts are an option in bare Win32, another approach might be to PInvoke the hell out of the problem. But this is also undesirable as it will introduce complexity and simply be a pain to code. Is there an elegant way to get around the problem? Thanks for being patient enough to read all of this.

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  • How to check in which position (landscape or portrait) os the iPhone now?

    - by Mike Rychev
    I have an app with a tab bar, and nav controllers in each tab. When user shakes the device, a UIImageView appears as a child view in the nav controller. But the UIImageView must contain a special image, depending on the device's current orientation. If I write just - (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation) if (interfaceOrientation == UIInterfaceOrientationPortrait|| interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) { //Code } else if (interfaceOrientation == UIInterfaceOrientationLandscapeRight||interfaceOrientation == UIInterfaceOrientationLandscapeLeft) { //Code } } The view just goes crazy if user rotated the device before shaking. Is there a method to get iPhones current orientation?

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  • Point of Sale how to add quantity v2

    - by Jimmy nguyen
    Problem - I have Point of Sale V9 -intuit When ringing up a customer by using a barcode scanner for 1 item and the customer wants multiple of that same item but the receipt shows a long list of that same item. How can I get that program to set it where it would just self update without having to physically touching the keyboard or mouse I would pretty much want it to be user friendly Also if there is a code for this where do I put in the code?

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  • testing a shellcode...

    - by kmitnick
    hey folks, I have this piece of code to test a shellcode but I don't understand it so can anyone explain it to me??? forget about the assembly shellcode, what i want to understand is the C code char shellcode[] = "..."; int main(int argc, char **argv) { int (*func)(); func = (int (*)()) shellcode; (int)(*func)(); } I mean everything, what is the empty () ,please explain it as if you are explaining it to a beginner thnx all

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  • Why isn't JML implemented as Annotations in Java?

    - by devoured elysium
    Contrary to Code Contracts in C#, in JML Code Contracts are just text that's used in the form of comments in the header of a method. Wouldn't it be better to have them exposed as Annotations, then? That way even when compiling the information would persist on the .class's metadata, contrary to comments, that get erased. Am I missing something? Thanks

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  • Convert .cshrc to .bashrc

    - by Bobby
    I am new to Linux and I am trying to compile some code that needs environment variables set first. The script is in cshrc, but whenever I try to run that code I get "if: badly formed number" errors. I want to run it in bash instead. Is there an easy way to convert cshrc to bashrc?

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  • Best calculator software to help programmers

    - by RHaguiuda
    As a embedded systems programmer I always need to make lots of base conversions (dec to hex, hex to bin and so on...), and I must admit: Windows 7 calculator is a good calc, but too limited in my point of view. I work a lot with communications protocols and it`s common to need some base conversion in this field of knowledge. I`m looking for a calculator software (not a hardware one), to help with base conversions, but it must also support scientific calc. Can anyone help on this? Since this subject is intended to help programmers, I did not ask this in SuperUser.com. Thanks.

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  • How to preprocess a Django model field value before return?

    - by Satoru.Logic
    Hi, all. I have a Note model class like this: class Note(models.Model): author = models.ForeignKey(User, related_name='notes') content = NoteContentField(max_length=256) NoteContentField is a custom sub-class of CharField that override the to_python method in purpose of doing some twitter-text-conversion processing. class NoteContentField(models.CharField): __metaclass__ = models.SubfieldBase def to_python(self, value): value = super(NoteContentField, self).to_python(value) from ..utils import linkify return mark_safe(linkify(value)) However, this doesn't work. When I save a Note object like this: note = Note(author=request.use, content=form.cleaned_data['content']) The conversed value is saved into the database, which is not what I wanna see. Would you please tell me what's wrong with this? Thanks in advance.

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  • PHP URL Security Question

    - by TaG
    I want to have users store the url in my database I'm using php mysql and htmlpurifier I was wondering if the following code was good way to filter out bad data? Here is the Partial PHP code. $url = mysqli_real_escape_string($mysqli, $purifier->purify(htmlspecialchars(strip_tags($_POST['url'])));

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  • PHP Verification Codes CAPTCHA

    - by Juddling
    I run a game website so I have many users logged in and they can do certain things once every two minutes. I have a CAPTCHA system in places, and for some things it will always ask for a code, and for other things, it will ask once every 10 minutes. I have had some players use the auto submit feature on Opera, and my CAPTCHA system does stop them. My question is, how can I minimise the amount of times I am asking for a code, but still stop people using this auto-submit?

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  • Drupal / ubercart remote node addition

    - by combatwombat
    I am developing my first large Ubercart site, which needs to have a daily product database update from an existing xBase (DBF format). The conversion from DBF to MySQL/PHP is handled on the same server as the Drupal installation, using some custom scripting I have done, and works well. However, the next step is to get my script to talk to Drupal and update the product nodes with pricing/stock level/etc. Googling hasn't resulted in any good hits, at least in PHP terms. So how do I go about this? Can I just use a POST to a particular page in Drupal, ie RESTful, or do I have to use some more arcane xmlrpc method?

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  • auto indent in vim string replacement new line?

    - by rxin
    I'm using the following command to auto replace some code (adding a new code segment after an existing segment) %s/my_pattern/\0, \r some_other_text_i_want_to_insert/ The problem is that with the \r, some_other_text_i_want_to_insert gets inserted right after the new line: mycode( some_random_text my_pattern ) would become mycode( some_random_text my_pattern some_other_text_i_want_to_insert <--- this line is NOT indented ) instead of mycode( some_random_text my_pattern some_other_text_i_want_to_insert <--- this line is now indented ) i.e. the new inserted line is not indented. Is there any option in vim or trick that I can make the newly inserted line indented? Thanks.

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  • How do you insert 9 MB file into a Blob Field Using Oracle.DataAccess?

    - by discwiz
    Trying to insert a large audio file into an Oracle 10g database and keep getting this error: ORA-01460: unimplemented or unreasonable conversion requested The byte array length of the audio file is 2702577. The procedure works with smaller array lengths, but not the larger ones. Here is my code and Thanks! Dim oracleConnection As New OracleClient.OracleConnection Dim Cmd As New OracleClient.OracleCommand Dim oracleDataAdapter As New OracleDataAdapter oracleConnection.ConnectionString = System.Configuration.ConfigurationManager.AppSettings("MasterConnectionODT") Cmd.Connection = oracleConnection Cmd.CommandText = "Audio.ADD_AUDIO" Cmd.CommandType = CommandType.StoredProcedure Dim aParam As New OracleClient.OracleParameter aParam.ParameterName = "I_FACILITY_ID_C" aParam.OracleType = OracleType.Char aParam.Value = FacID aParam.Direction = ParameterDirection.Input Cmd.Parameters.Add(aParam) aParam = New OracleParameter aParam.ParameterName = "I_TARP_ID_N" aParam.OracleType = OracleType.Number aParam.Value = TarpID aParam.Direction = ParameterDirection.Input Cmd.Parameters.Add(aParam) aParam = New OracleParameter aParam.ParameterName = "I_AUDIO_BLOB" aParam.OracleType = OracleType.Blob aParam.Value = Audio aParam.Direction = ParameterDirection.Input Cmd.Parameters.Add(aParam) Using oracleConnection oracleConnection.Open() Cmd.ExecuteNonQuery() End Using

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  • How to make Python check if ftp directory exists?

    - by Phil
    I'm using this script to connect to sample ftp server and list available directories: from ftplib import FTP ftp = FTP('ftp.cwi.nl') # connect to host, default port (some example server, i'll use other one) ftp.login() # user anonymous, passwd anonymous@ ftp.retrlines('LIST') # list directory contents ftp.quit() How do I use ftp.retrlines('LIST') output to check if directory (for example public_html) exists, if it exists cd to it and then execute some other code and exit; if not execute code right away and exit?

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  • Convert Date to Datetime field.

    - by infant programmer
    The argument my C# function is getting is a string which is merely a Date or a DateTime. I am suppose to convert this String to DateTime, to carry on furthure calculation. Now I need to test whether the incoming data is a Date, if it is date(examle:"12/31/2009"), then I need to add "00:00:00" (24 hours format) to it, so that it will become "12/31/2009 00:00:00". If string manipulation is one possible way, I want to confirm whether there is some other way where we can automate the testing and conversion within DateTime.TryParseExact() method. This is my sample C# code : (which is now only able to convert string of format "MM/dd/yyyy HH:mm:ss" to DateTime.) private static string[] formats = new string[] { "MM/dd/yyyy HH:mm:ss" }; public string date_conv(string date_str) { DateTime date_value; DateTime.TryParseExact(date_str, formats, new global::System.Globalization.CultureInfo("en-US"), global::System.Globalization.DateTimeStyles.None, out date_value); /*Some useful instruction to use date_value*/ return(date_value.ToString("MM/dd/yyyy HH:mm:ss")); }

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