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  • Serial Communication between Java RXTX and Arduino

    - by SharpBarb
    I'm trying to communicate between my PC (Windows 7 using Netbeans and RXTX) with an Arduino Pro, using the serial port. The Arduino is actually connected to the PC using an FTDI cable. The code is based on the Java SimpleRead.Java found here. Currently the Arduino simply prints out a string when it starts up. My Java program should print the number of bytes that have been read and then print out the contents. The Java program works, sort of... If the string is long (10 bytes or so) the output will get broken up. So if on the Arduino I print Serial.println("123456789123456789"); //20 bytes including '\r' and '\n' The output of my Java program may look something like: Number of Bytes: 15 1234567891234 Number of Bytes: 5 56789 or Number of Bytes: 12 1234567891 Number of Bytes: 8 23456789 I'm thinking it's a timing problem, because when I manually go through the code using the debugger, the result string is always what it should be: one 20 byte string. I've been messing with various things but I haven't been able to fix the problem. Here is the part of the code that is giving me problems: static int baudrate = 9600, dataBits = SerialPort.DATABITS_8, stopBits = SerialPort.STOPBITS_1, parity = SerialPort.PARITY_NONE; byte[] readBuffer = new byte[128]; ... ... public void serialEvent(SerialPortEvent event) { if (event.getEventType() == SerialPortEvent.DATA_AVAILABLE) { try { if (input.available() > 0) { //Read the InputStream and return the number of bytes read numBytes = input.read(readBuffer); String result = new String(readBuffer,0,numBytes); System.out.println("Number of Bytes: " + numBytes); System.out.println(result); } } catch (IOException e) { System.out.println("Data Available Exception"); } }

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  • Perl script matching a certain patern

    - by kivien
    Assuming the file.txt is as follows:- John Depp is a great guy. He is very inteligent. He can do anything. Come and meet John Depp. The perl code is as follows:- open ( FILE, "file.txt" ) || die "can't open file!"; @lines = <FILE>; close (FILE); $string = "John Depp"; foreach $line (@lines) { if ($line =~ $string) { print "$line"; } } The output is going to be first and fourth line. I want to make it working for the file having random line breaks rather than one English sentence per line. I mean it should also work for the following:- John Depp is a great guy. He is very inteligent. He can do anything. Come and meet John Depp. The output should be first and fourth sentence. Any ideas please?

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  • Enable debug logging in maven jetty 7 plugin

    - by wds
    I'm running a java webapp with a simple mvn jetty:run, using the latest jetty plugin, but I can't seem to find a way to tell jetty to output DEBUG messages to console (for the embedded jetty instance, not the plugin itself). It's currently outputting only WARN and INFO messages. I've tried setting -DDEBUG and -DVERBOSE, but they don't do anything. I've already had a look at the documentation, but it doesn't seem to cover this.

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  • Difficulties with google authentication

    - by user283405
    I am trying to authenticate google with the following code but google sent me back to the login page again. //STEP# 1 string loginURL = "https://www.google.com/accounts/ServiceLoginBox?service=analytics&nui=1&hl=en-US&continue=https%3A%2F%2Fwww.google.com%2Fanalytics%2Fsettings%2F%3Fet%3Dreset%26hl%3Den%26et%3Dreset%26hl%3Den-US"; request = (HttpWebRequest)WebRequest.Create(loginURL); request.CookieContainer = cookieJar; request.Method = "GET"; request.KeepAlive = true; request.UserAgent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008111217 Fedora/3.0.4-1.fc10 Firefox/3.0.4"; HttpWebResponse response = (HttpWebResponse)request.GetResponse(); foreach (Cookie cook in response.Cookies) { cookieJar.Add(cook); } using (StreamReader sr = new StreamReader(response.GetResponseStream()) ) { serverResponse = sr.ReadToEnd(); sr.Close(); } galx = ExtractValue(serverResponse,"GALX","name=\"GALX\" value=\""); Console.WriteLine(galx); //Request# 2 string uriWithData = "https://www.google.com/accounts/ServiceLoginBoxAuth"; request = (HttpWebRequest)WebRequest.Create(uriWithData); request.KeepAlive = true; request.UserAgent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008111217 Fedora/3.0.4-1.fc10 Firefox/3.0.4"; request.Method = "POST"; request.CookieContainer = cookieJar; string param = string.Format("Email={0}&Passwd={1}&continue={2}&service=analytics&nui=1&dsh=8209101995200094904&GALX={3}&hl=en-US&PersistentCookie=yes","**my email address**",p,"",galx); byte[] postArr = StrToByteArray(param); request.ContentType = @"application/x-www-form-urlencoded"; request.ContentLength = param.Length; Stream reqStream = request.GetRequestStream(); reqStream.Write(postArr,0,postArr.Length); reqStream.Close(); response = (HttpWebResponse)request.GetResponse(); foreach (Cookie cook in response.Cookies) { cookieJar.Add(cook); } using (StreamReader sr = new StreamReader(response.GetResponseStream()) ) { serverResponse = sr.ReadToEnd(); Console.WriteLine(serverResponse); // Close and clean up the StreamReader sr.Close(); }

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  • python webbrowser.open(url)

    - by Gert Cuykens
    httpd = make_server('', 80, server) webbrowser.open(url) httpd.serve_forever() This works cross platform except when I launch it on a putty ssh terminal. How can i trick the console in opening the w3m browser in a separate process so it can continue to launch the server? Or if it is not possible to skip webbrowser.open when running on a shell without x?

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  • Apple push notifications could not receive size of message error

    - by embedded
    I'm trying to send some push notification message to my App using the sandbox option. I'm getting those messages on my console: Sun Apr 25 21:56:22 unknown /usr/libexec/notification_proxy[57] : Could not receive size of message Sun Apr 25 21:56:22 unknown /usr/libexec/notification_proxy[57] : Could not receive message How do I resolve this? Thanks

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  • how can i set cookie in curl

    - by Sushant Panigrahi
    i am fetching somesite page.. but it display nothing and url address change. example i have typed http://localhost/sushant/EXAMPLE_ROUGH/curl.php in curl page my coding is= $fp = fopen("cookie.txt", "w"); fclose($fp); $agent= 'Mozilla/5.0 (Windows; U; Windows NT 5.1; pl; rv:1.9) Gecko/2008052906 Firefox/3.0'; $ch = curl_init(); curl_setopt($ch, CURLOPT_USERAGENT, $agent); // 2. set the options, including the url curl_setopt($ch, CURLOPT_URL, "http://www.fnacspectacles.com/place-spectacle/manifestation/Grand-spectacle-LE-ROI-LION-ROI4.htm"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt ($ch, CURLOPT_COOKIEJAR, 'cookie.txt'); curl_setopt($ch, CURLOPT_COOKIEFILE, "cookie.txt"); // 3. execute and fetch the resulting HTML output if(curl_exec($ch) === false) { echo 'Curl error: ' . curl_error($ch); } else echo $output = curl_exec($ch); // 4. free up the curl handle curl_close($ch); ? but it canege url like this.. http://localhost/aide.do?sht=_aide_cookies_ object not found. how can solve these problem help me

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  • Executing F# scripts

    - by chuanose
    I'm trying to practice my F# by writing small console scripts in F# in place of my usual method of writing shell scripts/batch files. I currently run them using "fsi script.fsx [args]". Is there a way I can associate these fsx files with fsi so that I can run them directly like "script.fsx [args]"?

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  • How to start and stop jboss server using Ant task ?

    - by Purushotham
    I need to stop, deploy my ear file and start Jboss server using the Ant tasks. I am able to compile, build and deploy my J2EE application as an ear file into the JBoss server successfully using Ant tasks. We can see the redeployment of my application in the jboss console. I want to stop the server before deployment and start the server. Is there any way to do this ?

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  • How can I print lines that match a pattern in Perl?

    - by kivien
    Assuming the file.txt having just one sentence per line as follows:- John Depp is a great guy. He is very inteligent. He can do anything. Come and meet John Depp. The perl code is as follows:- open ( FILE, "file.txt" ) || die "can't open file!"; @lines = <FILE>; close (FILE); $string = "John Depp"; foreach $line (@lines) { if ($line =~ $string) { print "$line"; } } The output is going to be first and fourth line. I want to make it working for the file having random line breaks rather than one English sentence per line. I mean it should also work for the following:- John Depp is a great guy. He is very inteligent. He can do anything. Come and meet John Depp. The output should be first and fourth sentence. Any ideas please?

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  • Eclipse Android Mac 10.4 problem, dyld: Symbol not found: _open$UNIX2003

    - by Manic
    Hello I have just set up the Eclipse Android SDK environment. I tried creating a basic HelloWorld app by following this page http://developer.android.com/guide/tutorials/hello-world.html As soon as i set up the project i get get this error in the console [2010-06-09 23:12:22 - Helloworld] dyld: Symbol not found: _open$UNIX2003 [2010-06-09 23:12:22 - Helloworld] Referenced from: /usr/lib/android-sdk-mac_86/platforms/android-3/tools/aapt [2010-06-09 23:12:22 - Helloworld] Expected in: /usr/lib/libSystem.B.dylib [2010-06-09 23:12:22 - Helloworld] Is it something to do do with my MacOS version ? plz hlp ! :S

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  • How to create nested macro in BOO

    - by Neo
    Hi, I am creating nested macros in BOO, I wrote this program: macro text: macro subMacro: text["Text"] = "Hello World" return [| block: System.Console.WriteLine( "Hello World" ); |] But I am getting the error "Unknown Identifer: 'text'" in the 3rd line of the code.

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  • batch file to merge .js files from subfolders into one combined file

    - by Andrew Johns
    I'm struggling to get this to work. Plenty of examples on the web, but they all do something just slightly different to what I'm aiming to do, and every time I think I can solve it, I get hit by an error that means nothing to me. After giving up on the JSLint.VS plugin, I'm attempting to create a batch file that I can call from a Visual Studio build event, or perhaps from cruise control, which will generate JSLint warnings for a project. The final goal is to get a combined js file that I can pass to jslint, using: cscript jslint.js < tmp.js which would validate that my scripts are ready to be combined into one file for use in a js minifier, or output a bunch of errors using standard output. but the js files that would make up tmp.js are likely to be in multiple subfolders in the project, e.g: D:\_projects\trunk\web\projectname\js\somefile.debug.js D:\_projects\trunk\web\projectname\js\jquery\plugins\jquery.plugin.js The ideal solution would be to be able to call a batch file along the lines of: jslint.bat %ProjectPath% and this would then combine all the js files within the project into one temp js file. This way I would have flexibility in which project was being passed to the batch file. I've been trying to make this work with copy, xcopy, type, and echo, and using a for do loop, with dir /s etc, to make it do what I want, but whatever I try I get an error.

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  • Explicit script end tag always converted to self-closing

    - by Jonas
    I'm using xslt to transform xml to an aspx file. In the xslt, I have a script tag to include a jquery.js file. To get it to work with IE, the script tag must have an explicit closing tag. For some reason, this doesn't work with xslt below. <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet version="1.0" xmlns="http://www.w3.org/1999/xhtml" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl" xmlns:asp="remove"> <xsl:output method="html"/> <xsl:template match="/"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>TEST</title> <script type="text/javascript" src="jquery-1.2.6.js"></script> But if I change the script tag as shown below, it works. <script type="text/javascript" src="jquery-1.2.6.js"> // <![CDATA[ // ]]> </script> I thought that the <xsl:output method="html" /> would do the trick, but it doesn't seem to work? /Jonas

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  • saxon java xpath exception :

    - by changed
    Hi I am trying to read XPath queries from a file and run it against a xml data file. I am doing it through Saxon Xpath processor. But i keep getting this error. Code i am using is from sample code provided with the library. Error i am getting is : Exception in thread "main" javax.xml.xpath.XPathExpressionException: Supplied node must be built using the same or a compatible Configuration at net.sf.saxon.xpath.XPathExpressionImpl.evaluate(XPathExpressionImpl.java:283) at net.sf.saxon.xpath.XPathExpressionImpl.evaluate(XPathExpressionImpl.java:375) at edu.xml.XPathExample.go(XPathExample.java:81) at edu.xml.XPathExample.main(XPathExample.java:42) - public void go(String filename) throws Exception { XPathExpression findLine = null; String readLine = null; Object document = new XPathEvaluator().setSource(new StreamSource(new File(dataPath))); System.setProperty("javax.xml.xpath.XPathFactory:" + NamespaceConstant.OBJECT_MODEL_SAXON, "net.sf.saxon.xpath.XPathFactoryImpl"); XPathFactory xpf = XPathFactory.newInstance(NamespaceConstant.OBJECT_MODEL_SAXON); XPath xpe = xpf.newXPath(); if (filename != null) { this.queryPath = filename; } try { fileReader = new BufferedReader(new FileReader(queryPath)); } catch (FileNotFoundException ex) { System.out.println("File not found: " + ex.getMessage()); } xpe.setXPathVariableResolver(this); while (true) { try { readLine = fileReader.readLine(); } catch (IOException ex) { System.out.println("Error while reading file: " + ex.getMessage()); } if (readLine == null) { break; } findLine = xpe.compile(readLine); String resultString = findLine.evaluate(document); System.out.println("<output>"); System.out.println("String Value => " + resultString); System.out.println("</output>"); } }

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  • Problem with jQuery in Internet Explorer 8

    - by Tim Cosgriff
    I am trying to get my jQuery functions to work on IE8. I am loading the library from google's servers (http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js). The $(function(){}) is never called. Instead, I get an error "Object expected". I opened the developer and ran "typeof $" in the console, and it came up as "undefined". I have tried going to other sites that I know use jQuery (jquery.com), and those all work, is there something I might be missing here?

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  • program "is not up to date" execution error in wedit lcc-win32

    - by Rowhawn
    I'm attempting to compile a simple hello world program in c with lcc-win32/wedit, and i'm a little unfamiliar with windows c programming. #include int main(void){ printf("hellow\n"); return 0; } When I compile the program the console output is Wedit output window build: Tue Jun 15 09:13:17 2010 c:\lcc\lib\lcccrt0.obj .text: undefined reference to '_RtlUnwind@16' c:\lcc\lib\lcccrt0.obj .text: undefined reference to '_signal' c:\lcc\lib\lcccrt0.obj .text: undefined reference to '_raise' c:\lcc\lib\lcccrt0.obj .text: undefined reference to '_exit' asctoq.obj .text: undefined reference to '_strnicmp' defaulttrap.obj .text: undefined reference to 'imp_iob' defaulttrap.obj .text: undefined reference to '_fwrite' defaulttrap.obj .text: undefined reference to '_itoa' defaulttrap.obj .text: undefined reference to '_strcat' defaulttrap.obj .text: undefined reference to '_MessageBoxA@16' defaulttrap.obj .text: undefined reference to '_abort' powlasm.obj .text: undefined reference to '_pow' qfloat.obj .text: undefined reference to '_memset' qfloat.obj .text: undefined reference to '_strchr' qfloat.obj .text: undefined reference to '_memmove' strlcpy.obj .text: undefined reference to '_memcpy' xprintf.obj .text: undefined reference to '_localeconv' xprintf.obj .text: undefined reference to '_strtol' xprintf.obj .text: undefined reference to '_wcslen' xprintf.obj .text: undefined reference to '_wctomb' xprintf.obj .text: undefined reference to '_fputc' search Compilation + link time:0.1 sec, Return code: 60 when I attempt to execute the program within wedit i get a dialog box that says "hello.exe is not up-to-date. Rebuild?" If I click yes, nothing happens. If I click no, a dos window pops up saying "C:\lcc\projects\lcc2\hello.exe" Return code -1 Execution time 0.001 seconds Press any key to continue... This continues to happen no matter how many times i compile/rebuild. Any ideas?

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  • Ruby on Rails 2.3.5: update_all failing on ActiveRecord

    - by randombits
    I'm trying to update a collection of records in my database using ActiveRecord's update_all. Enter script/console. MyModel.update_all("reserved = 1", :limit => 1000) ActiveRecord thinks limit is a column, says it's unknown and throws an exception. According to the documentation though, my syntax looks sane. This is RoR 2.3.5. When doing MyModel.update_all("reserved = 1") alone, it works just fine.

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  • Should all public methods of an API be documented?

    - by cynicalman
    When writing "library" type classes, is it better practice to always write markup documentation (i.e. javadoc) in java or assume that the code can be "self-documenting"? For example, given the following method stub: /** * Copies all readable bytes from the provided input stream to the provided output * stream. The output stream will be flushed, but neither stream will be closed. * * @param inStream an InputStream from which to read bytes. * @param outStream an OutputStream to which to copy the read bytes. * @throws IOException if there are any errors reading or writing. */ public void copyStream(InputStream inStream, OutputStream outStream) throws IOException { // copy the stream } The javadoc seems to be self-evident, and noise that just needs to be updated if the funcion is changed at all. But the sentence about flushing and not closing the stream could be valuable. So, when writing a library, is it best to: a) always document b) document anything that isn't obvious c) never document (code should speak for itself!) I usually use b), myself (since the code can be self-documenting otherwise)...

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  • Pure Actionscript 3 Adobe Air Application main class constructor not being called

    - by SilverCode
    I'm writing an Air application using only Actionscript, and Flex3 SDK as the compiler. Everything compiles and runs fine under adl, but when the final air file is built and installed, the main class is never initialized. For instance: package { import flash.display.Sprite; public class main extends Sprite { public function main() { trace("Init"); } } } When run under ADL, "Init" will be output to the console, but when installed and run, nothing happens (the constructor for class main is never called).

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  • wsdl return an array of complex types

    - by Anand
    hi, I have defined a web service that will return the data from my mysql data base. I have written the web service in php. Now I have defined a complex type as follows: $server->wsdl->addComplexType( 'Category', 'complexType', 'struct', 'all', '', array( 'category_parent_id' => array('name' => 'category_parent_id', 'type' => 'xsd:int'), 'category_child_id' => array('name' => 'category_child_id', 'type' => 'xsd:int'), 'category_list' => array('name' => 'category_list', 'type' => 'xsd:int') ) ); The above complex type is a row in a table in my database. Now my function must send an array of these rows so how do I achieve the same My code is as follows: require_once('./nusoap/nusoap.php'); $server = new soap_server; $server-configureWSDL('productwsdl', 'urn:productwsdl'); // Register the data structures used by the service $server-wsdl-addComplexType( 'Category', 'complexType', 'struct', 'all', '', array( 'category_parent_id' = array('name' = 'category_parent_id', 'type' = 'xsd:int'), 'category_child_id' = array('name' = 'category_child_id', 'type' = 'xsd:int'), 'category_list' = array('name' = 'category_list', 'type' = 'xsd:int') ) ); $server-register('getaproduct', // method name array(), // input parameters //array('return' = array('result' = 'tns:Category')), // output parameters array('return' = 'tns:Category'), // output parameters 'urn:productwsdl', // namespace 'urn:productwsdl#getaproduct', // soapaction 'rpc', // style 'encoded', // use 'Get the product categories' // documentation ); function getaproduct() { $conn = mysql_connect('localhost','root',''); mysql_select_db('sssl', $conn); $sql = "SELECT * FROM jos_vm_category_xref"; $q = mysql_query($sql); while($r = mysql_fetch_array($q)) { $items[] = array('category_parent_id'=$r['category_parent_id'], 'category_child_id'=$r['category_child_id'], 'category_list'=$r['category_list']); } return $items; } // Use the request to (try to) invoke the service $HTTP_RAW_POST_DATA = isset($HTTP_RAW_POST_DATA) ? $HTTP_RAW_POST_DATA : ''; $server-service($HTTP_RAW_POST_DATA);

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  • how to get ipaddress of my computer

    - by astha goyal
    hello i want to knw the ipaddress of my computer. /sbin/ifconfig eth0 | grep 'inet addr:' | cut -d: -f2 | awk '{ print $1}' this command gives the ipaddress of my computer and print result on console but i want it in a varible sothat i can use it in my C program. How can i do that.

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