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  • How can i use 'log' inside a src/groovy/ class

    - by firnnauriel
    I'm encountering this error: groovy.lang.MissingPropertyException: No such property: log for class: org.utils.MyClass Here's the content of the class: package org.utils class MyClass { int organizationCount = 0 public int getOrganizationCount(){ log.debug "There are ${organizationCount} organization(s) found." return organizationCount } } Do i need to add an import statement? What do i need to add? Note that the class is located in src/groovy/org/utils. I know that the 'log' variable is accessible in controllers, services, etc. Not sure in 'src' classes. Thanks.

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  • Using charAt in java

    - by ThuL?nå F?rñ?nDö
    This is my assignment: Write a program where the user enters a string, and the program echoes it to the monitor with one character per line: C:\>java LinePerChar Enter a string: Octopus O c t o p u s I have tried, but I'm getting some compilation errors. Here's my code: import java.util.*; class CharactorEcho{ public static void main(String args []){ Scanner sc = new Scanner(System.in); System.out.println("Enter a string :"); try { String inputString = sc.nextLine(); for(int i=0; i < sc.length(); i++) { char c = inputString.charAt(i); System.out.println("" + c); } } catch(IOException e) { } } }

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  • Replacing delimiter characters in file path

    - by salvationishere
    I'm developing a C# web application in VS 2008. I let the user select an input file and then I store the file path in a string variable. However, it stores this path as "C:\\folder\\...". So my question is how do I convert this file path into single "\"? To clarify more, this is my code in context. Currently it is entering the If Directory does not Exist section. protected void btnAppend_Click(object sender, EventArgs e) { string fullpath = Page.Request.PhysicalPath; fullpath.Replace('\\', '\'); if (!Directory.Exists(fullpath)) { string msg = "<h1>The upload path doesn't exist: {0}</h1>";

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  • How to force HttpWebRequest to use cache in ASP.NET environment?

    - by piotrsz
    In my ASP.NET app I use HttpWebRequest for fetching external resources which I'd like to be cached. Consider the following code: var req = WebRequest.Create("http://google.com/"); req.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.CacheIfAvailable); var resp = req.GetResponse(); Console.WriteLine(resp.IsFromCache); var answ = (new StreamReader(resp.GetResponseStream())).ReadToEnd(); Console.WriteLine(answ.Length); HttpWebRequest uses IE cache, so when I run it as normal user, data is cached to %userprofile%\Local Settings\Temporary Internet Files and next responses are read from cache. I thought that when such code is run inside ASP.NET app, data will be cached to ...\ASPNET\Local Settings\Temporary Internet Files but it is not and cache is never used. What I am doing wrong? How to force HttpWebRequest to use cache in ASP.NET environment?

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  • Given a number of rectangles that can be rotated, find an enclosing rectangle of minimum area

    - by efficiencyIsBliss
    So, I'm trying to implement an algorithm that takes in a number of rectangles as input and tries to pack them into a rectangle of minimum area. The rectangles can all be rotated by 90 degrees. I realize that this is similar to the bin packing problem, but I am unable to find a good algorithm that accounts for the rotation. I found a paper that discusses this at length here and while I understand the article itself, I was hoping to find something simpler. Any suggestions? -Edit- I think I misstated the problem earlier. We are given a number of rectangles, such that each can be rotated by 90 degrees. We need to find a rectangle that fits all the given rectangles such that no two rectangles overlap, while minimizing the area of the enclosing rectangle. The problem I face here is that we are asked to find the minimum, as opposed to being given an enclosing rectangle and checking if the given rectangles fit or something of that sort.

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  • XPath filter not empty attribute

    - by Marcos Buarque
    Hi, I need to filter a XPath expression to grab only a certain attribute as not empty. I tried this: <xsl:template match="DocumentElement/QueryResults[string(@FileName)]"> and this: <xsl:template match="DocumentElement/QueryResults[string-length(@FileName)>0]"> but it did not work. I need the same kind of data returning from the folloing XPath expression... <xsl:template match="DocumentElement/QueryResults"> ... but filtered to avoid items with empty attribute @FileName. Thanks!

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  • Run Sql*Plus commands on Application Express

    - by pesantos
    Hi, I am new to PL/SQL, I'm trying to execute the commands that I learned at the course. VARIABLE area NUMBER DECLARE radius NUMBER(2) := &s_radius; pi CONSTANT NUMBER := 3.14; BEGIN :area := pi * radius * radius; END; I understand that I can run this using SqlPlus, but I remember my teacher was running this from the web browser using Application Express. I try to run the same commands there, at HOME SQLSQL Commands, but I keep getting the error "ORA-00900: invalid SQL statement" . Can you help me run it in Application Express or point me to a way where I can use an editor to run these course exercises? Thanks!

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  • How can I collapse a dataframe by some variables, taking mean across others

    - by Alex Holcombe
    I need to summarize a data frame by some variables, ignoring the others. This is sometimes referred to as collapsing. E.g. if I have a dataframe like this: Widget Type Energy egg 1 20 egg 2 30 jap 3 50 jap 1 60 Then collapsing by Widget, with Energy the dependent variable, Energy~Widget, would yield Widget Energy egg 25 jap 55 In Excel the closest functionality might be "Pivot tables" and I've worked out how to do it in python (http://alexholcombe.wordpress.com/2009/01/26/summarizing-data-by-combinations-of-variables-with-python/), and here's an example with R using doBy library to do something very related (http://www.mail-archive.com/[email protected]/msg02643.html), but is there an easy way to do the above? And even better is there anything built into the ggplot2 library to create plots that collapse across some variables?

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  • Last Observation Carried Forward In a data frame?

    - by Tal Galili
    Hi all, I wish to implement a "Last Observation Carried Forward" for a data set I am working on which has missing values at the end of it. Here is a simple code to do it (question after it): LOCF <- function(x) { # Last Observation Carried Forward (for a left to right series) LOCF <- max(which(!is.na(x))) # the location of the Last Observation to Carry Forward x[LOCF:length(x)] <- x[LOCF] return(x) } # example: LOCF(c(1,2,3,4,NA,NA)) LOCF(c(1,NA,3,4,NA,NA)) Now this works great for simple vectors. But if I where to try and use it on a data frame: a <- data.frame(rep("a",4), 1:4,1:4, c(1,NA,NA,NA)) a t(apply(a, 1, LOCF)) # will make a mess It will turn my data frame into a character matrix. Can you think of a way to do LOCF on a data.frame, without turning it into a matrix? (I could use loops and such to correct the mess, but would love for a more elegant solution) Cheers, Tal

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  • Pass an array from one file to another using include

    - by mrakodol
    How to pass an array from one file to another using include using PHP language? I have one file with some language array(language/langen.php): global $lang; $lang['Here'] = 'Here'; $lang['Date'] = "Date"; In other file I have: include base_url().'language/lang'.$_COOKIE['lang'].'.php'; var_dump($lang); *(My mistake by coping code - true is var_dump($lang))* But it shows me an error: A PHP Error was encountered Severity: Notice Message: Undefined variable: lang How to solve this problem and what did I do wrong?

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  • Store interface in array list java

    - by agazerboy
    Hi all, I am learning java. I am trying to use composite design pattern. I am trying to use following logic. ( Don't laugh I know it is very basic :) ) Item -> interface Folder -> class File -> class In folder class, can I create an arraylist of Item to store files information? ArrayList<Item> info = ArrayList<Item>(); Or should I use Folder Arraylist? ArrayList<Folder> info = ArrayList<Folder>(); I don't know if interface can store real data as there is no variable just function definitions. Thanks for helping a newbie :)

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  • Autocorrelation method for pitch determination.. whats d input data form..?

    - by harsh
    i hav read a code for pitch determination using autocorrelation method. can anybody please tell wht wud b d input data(passed as argument to DetectPitch()) function here: double DetectPitch(short* data) { int sampleRate = 2048; //Create sine wave double *buffer = malloc(1024*sizeof(short)); double amplitude = 0.25 * 32768; //0.25 * max length of short double frequency = 726.0; for (int n = 0; n < 1024; n++) { buffer[n] = (short)(amplitude * sin((2 * 3.14159265 * n * frequency) / sampleRate)); } doHighPassFilter(data); printf("Pitch from sine wave: %f\n",detectPitchCalculation(buffer, 50.0, 1000.0, 1, 1)); printf("Pitch from mic: %f\n",detectPitchCalculation(data, 50.0, 1000.0, 1, 1)); return 0; }

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  • Can't find the error in my javascript code

    - by Olivier
    This js program should display the first 100 prime numbers, but instead it crashes each and every time and I can't find the error! Could someone point me towards the best way to debug js code?! Thank you! // initialisation of the array p holding the first 100 prime numbers var p = []; // set the first prime number to 2 p.push(2); // find the first 100 prime numbers and place them in the array p var i = 3; while (p.length < 100) { var prime = true; loop: for (var item in p){ if (i%item === 0){ prime = false; break loop; } } if (prime) p.push(i); i = i + 2; } // display the first 100 prime numbers found var i=1; for (var item in p){ document.writeln(i,item); i++; }

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  • How to make a EditText work correctly in a ListView?

    - by TianDong
    Hallo all, I have a ListView, which contains an EditText in each of it's row. I also have an Array.The length of the Array==the Nr of the rows in the ListView. I want to store the user input (the text in the EditText) to the Arrray. E.g, if i type some text in the EditText in the first row of the ListView, i want the text to be stored in Array[0]. But how can i detect to which row the EditText belongs to? I can detect the possition of the row if the row contains a RadioGroup, but not a EditText. What if i first type some text in the EditText and sometime later i want to update mein Input? How can i update it? Thanks a lot!

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  • Whitespaces in CLASSPATH

    - by Shyam
    I am working on a Windows PC and have cygwin on it! I have organized all my jars under a directory within a few directories! I am writing a bash script to set the CLASSPATH by iterating through the directory that is passed as a parameter as follows: for JAR_FILE in `ls *.jar` do CLASSPATH="$DIRECTORY_TO_LOOK_FOR_JARS"/$JAR_FILE:$CLASSPATH done Whenever there are spaces in the directory that is passed like /cygdrive/c/Documents and Settings/user/My Jars and I run java -cp $CLASSPATH somepackage.someclass, it throws an error stating that the class and is not found, because the CLASSPATH variable is getting split after /cygdrive/c/Documents. Can someone help me to solve this issue?

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  • add several variables to dataframe, based on vector

    - by Andreas
    I am sure this is easy - but I can't figure it out right now. Basically: I have a long vector of variables: names <- c("first","second", "third") I have some data, and I now need to add the variables. I could do: data$first <- NA But since I have a long list, and I would like an automated solution. This doesn't work. for (i in 1:length(names)) (paste("data$", names[i],sep="") <- NA) The reason I want this, is that I need to vertically merge to dataframes, where one doesn't have all the variables it should have. Thanks in advance

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  • What's wrong with XOR encryption?

    - by Colin
    I wrote a short C++ program to do XOR encryption on a file, which I may use for some personal files (if it gets cracked it's no big deal - I'm just protecting against casual viewers). Basically, I take an ASCII password and repeatedly XOR the password with the data in the file. Now I'm curious, though: if someone wanted to crack this, how would they go about it? Would it take a long time? Does it depend on the length of the password (i.e., what's the big-O)?

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  • How can I access a global pointer outside of a C function?

    - by patrick
    I am trying to access the data of*tkn within a different function in my program for example: putchar(*tkn); It is a global variable but its not working correctly. Any ideas? #define MAX 20 // globals char *tkn; char array[MAX]; ... void tokenize() { int i = 0, j = 0; char *delim = " "; tkn = strtok (str," "); // get token 1 if (tkn != NULL) { printf("token1: "); while ((*tkn != 0) && (tkn != NULL)) { putchar(*tkn); array[i] = *tkn; *tkn++; i++; } } }

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  • Creating folders using PHP in google docs

    - by Isaac
    Hi, Currently I am working on a project integrating google docs to my application using php. However, there is only version1 for the php and I am not well-versed with REST web service. And I am required to create folder using the api. I wonder any people manage/know how to do it? Below is the protocol for the creation of the folder. If anyone know how to do it, I would be glad if you can assist me. Thank you in advance. POST /feeds/default/private/full HTTP/1.1 Host: docs.google.com GData-Version: 3.0 Authorization: Content-Length: 245 Content-Type: application/atom+xml Example Folder

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  • Running rspec against multiple targets

    - by kaerast
    I've written an rspec test using Watir against a web application and it's running fine. However, I now want to be able to run this test against the web application running on different domain names. My initial thought was that I'd be able to pass a value to spec at the command line to set a variable within my script, but I can't see any easy method of doing this. So my second thought was that I might need to add an array of domains into my script and have it test all of them - but I don't always want to test every domain, and the domains are constantly changing as we add and remove sites to be tested. What are my options for allowing the choice of targets I want?

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  • jquery.ui.tabs.js doesn't load tab data in IE9, Chrome - works perfectly fine in firefox

    - by Salma Khan
    I have few issues that I am facing on my site and I have no idea how to fix those. Please go to http://link.zambeel.ca/index.php/component/obituary/detail/52 and click on Photos tab, it doesn't load images promptly in IE9 and Chrome. I have made it work in firefox with the following code: var loadNextTab = function() { if (indexesToLoad.length == 0) return; var index = indexesToLoad.shift(); $("#tabs-1").tabs("load",index); }; $("#tabs-1").tabs({ cache: true, load: loadNextTab }); Please help me resolve this matter as soon as possible. Just to let you guys know, I am not a programmer by any means.

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  • How to create two dimensional array in jquery or js

    - by learner
    I need to create dynamic global two dimensional array in jquery or javascript My function is like this <script> var index = 0; var globalArray = new Array(); function createArray(){ var loop = globalArray[index].length; var name = $.("#uname").val(); if(loop == 0){ globalArray[index][0] = uname; }else{ globalArray[index][loop++] = uname; } } </script> <div><input type="text" id="uname"> <input type='button' value='save' onclick='createArray();'> </div> On click of that button I am getting this error "globalArray[index] is undefined" How can I create one global array using jquery or javascript like this. I dont want any hidden field and all. Please help me. Thanks

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  • Two differents FOSUser in application

    - by Jérôme Boé
    I face a problem with FOSUserBundle. In my Symfony2 application, I want to implement two differents User. I have one entity User, for basic user, and one entity UserPro with more informations. My problem is that I want to configure my bundle with this two entities: fos_user: db_driver:     orm firewall_name: main user_class:    Btp\UserBundle\Entity\User fos_userpro: db_driver:     orm firewall_name: pro user_class:    Btp\UserProBundle\Entity\UserPro And so, use fos_user and fos_userpro as provider in my security.yml. I'm no sure it's be possible. I obtain an error : There is no extension able to load the configuration for "fos_userpro" (in /..../app/config/config.yml). Looked for namespace "fos_userpro", found "framework", "security", ... And when I take a look in FOSUserBundle files, I feel that fos_user is not a configuration variable and is directly written in strings. Thanks.

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  • Convert wide to long format in R

    - by Anthony
    My data has a long format similar to the one below: ID Language MotherTongue SpokenatHome HomeLang 1 English English English 1 French French 1 Polish Polish 2 Lebanese Lebanese Lebanese Labanese 2 Arabic Arabbic Here is the output I am looking for: ID Language1 Language2 Language 3 MotherTongue1 MotherTongue2 SpokenatHome1 HomeLan 1 English French Polish English Polish French English 2 Lebanese Arabic Labanese Arabic I'm using using the melt and dcast functions of the reshape2 package, but it does not work. Does anyone know how to do this? Thanks. df<-df[,c("OEN", "Langugae","MotherTongue", "SpokenatHome", "MainHomeLanguage")] dfl <- melt(df, id.vars=c("OEN", "Langugae"), measure.vars=c("MotherTongue", "SpokenatHome", "MainHomeLanguage"), variable.name="Language") dfw <- dcast(dfl, OEN ~ Langugae , value.var="value" )

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  • Aquamacs and IDLWAVE

    - by nicolavianello
    I've just installed the new Aquamacs 2.0 in my Mac Os X 10.6.3 and I'm an happy user of IDLWAVE on Aquamacs for programming in IDL. Unfortunately I run into a problem which I can't understand. I used in my configuration file to put the following (setq idlwave-surround-by-blank t) for the beautiful space around operator. This used to work till Aquamacs 2.0 preview b3 (third beta release) from that on, it stops to work and every time I type an operator (the same for '=' '<' '' etc) I got the following message Debugger entered--Lisp error: (void-variable idlwave-expand-equal) (lambda nil (interactive) (self-insert-command 1) idlwave-expand- equal -1 -1)() call-interactively((lambda nil (interactive) (self-insert-command 1) idlwave-expand-equal -1 -1) nil nil) Any help is welcommed

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