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  • Run java with highest security setting

    - by Ankiov Spetsnaz
    I'm currently writing an in house coding challenge web application and I am wondering if there is any other security precaution I would need to have other than below java option at runtime. java -Djava.security.manager=default Basically, challenges would be more of single threaded math and algorithm focused. So I would need to enable basic data structure objects and disable any file, sockets, threading or any thing that might be not so important. Based on my quick search turning on security manager as above seems to be a solution but since this is a security related I would like to be sure before it goes alive. Is there anything else I could do more?

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  • How do I make IntelliJ recognize wicket html tags?

    - by Alex B
    I'm using IntellIJ with Apache Wicket and IntelliJ is showing me that tags like <wicket:extend> and <wicket:container> and adding wicket:id to other html tags is not valid. What steps do I need to take to make IntelliJ recognize the wicket tags? I'm using IntelliJ Ultimate 9 with the wicketforge plugin.

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  • Generating a beveled edge for a 2D polygon

    - by Metaphile
    I'm trying to programmatically generate beveled edges for geometric polygons. For example, given an array of 4 vertices defining a square, I want to generate something like this. But computing the vertices of the inner shape is baffling me. Simply creating a copy of the original shape and then scaling it down will not produce the desired result most of the time. My algorithm so far involves analyzing adjacent edges (triples of vertices; e.g., the bottom-left, top-left, and top-right vertices of a square). From there, I need to find the angle between them, and then create a vertex somewhere along that angle, depending on how deep I want the bevel to be. And because I don't have much of a math background, that's where I'm stuck. How do I find that center angle? Or is there a much simpler way of attacking this problem?

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  • Where can I find a web-project "security checklist?"

    - by iaagty
    I'm looking for a complete list of security guidelines for programming and deploying PHP web sites and applications on an Apache (Linux) server. Basically, a "security check list" to run through before finishing a project. I.e., Cross Site Scripting Cross Site Request Forgery Sanitize form data that goes into database Disable register globals and error reporting in custom php.ini Upload files below web root ...(the list goes on) I did some searching on the internet and in this forum, but couldn't find a comprehensive, succinct, and complete list of guidelines. Thanks in advance.

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  • OCaml Summation

    - by Supervisor
    I'm trying to make a function in OCaml which does the summation function in math. I tried this: sum n m f = if n = 0 then 0 else if n > m then f else f + sum (n + 1) m f;; However, I get an error - "Characters 41-44: else f * sum(n + 1) m f;; Error: Unbound value sum and sum is underlined (has carrot signs pointing to it) I looked at this: Simple OCaml exercise It's the same question, but I see a lot of other things that I do not have. For example, for my n = m case, I do not have f n and then in the else case, I do not have f m. Why do you need f n if you want the function to return an integer? D: What's the problem!? Thanks in advance.

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  • What causes MSSQL to return the message 'The statement has been terminated'?

    - by Wally Lawless
    I have a very simple INSERT statement being executed from a PHP script running on a Linux Apache web server. I can run the query fine from within SQL Management Studio and it normally runs fine from PHP as well. However, every once in awhile I get an error message from my PHP script that the query failed and the mssql_get_last_message() function returns 'The statement has been terminated'. What sources can cause this message to be returned from MSSQL?

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  • Client for restful web service

    - by Ish
    I'd like to create a http-centric client for a restful web service created using CXF. To that end: Does any one know the (maven) dependencies for ONLY the CXF clients (Proxy & HTTP)? Is there any advantage to using CXF's built-in clients over say, Apache HttpClient?

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  • Best practice for managing changes to 3rd party open source libraries?

    - by Jeff Knecht
    On a recent project, I had to modify an open source library to address a functional deficiency. I followed the SVN best practice of creating a "vendor source" repository and made my changes there. I also submitted the patch to the mailing list of that project. Unfortunately, the project only has a couple of maintainers and they are very slow to commit updates. At some point, I expect the library to be updated, and I expect that my project will want to use the upgraded library. But now I have a potential problem... I don't know whether my patch will have been applied to this future release of the 3rd party library. I also don't know whether my patch will even still be compatible with the internal implementation of the upgraded components. And in all likelihood, someone else will be maintaining my project by that point. Should I name the library in a special way so it is clear that we made special modifications (eg. commons-lang-2.x-for-my-project.jar)? Should I just document the patch and reference the SVN location and a link to the mailing list item in a README? No option that I can think of seems to be fool-proof in an upgrade scenario. What is the best practice for this?

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  • Sharing DefaultHttpClient in Android. To synchronize or not to synchronize?

    - by johnrock
    In an Android app, I am using one static instance of org.apache.http.impl.client.DefaultHttpClient and sharing that instance in all activities and services of the app, so that this client may be used to log in once to a remote server and all subsequent user requests to that remote server will remain authenticated. Every activity or Service that makes a GET or POST to this remote server calls the same method : MyUtilityClass.gettHttpClient() Do I need to worry about synchronization of this httpclient? If so, what is the best way to handle this?

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  • Problem While Deploying Application in GlassFish

    - by Sarang
    I have to deploy an application named "mrs-ws-server.war" in glassfish. I did it using both : 1) Package File to be uploaded to the server 2) Local package File or Directory at the address : http://localhost:42328/common/index.jsf It generates the following error : Exception while loading the app : java.lang.Exception: java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connection What should be the solution for the same ?

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  • Should I learn Haskell or F# if I already know OCaml?

    - by Unknown
    I am wondering if I should continue to learn OCaml or switch to F# or Haskell. Here are the criteria I am most interested in: Longevity Which language will last longer? I don't want to learn something that might be abandoned in a couple years by users and developers. Will Inria, Microsoft, University of Glasgow continue to support their respective compilers for the long run? Practicality Articles like this make me afraid to use Haskell. A hash table is the best structure for fast retrieval. Haskell proponents in there suggest using Data.Map which is a binary tree. I don't like being tied to a bulky .NET framework unless the benefits are large. I want to be able to develop more than just parsers and math programs. Well Designed I like my languages to be consistent. Please support your opinion with logical arguments and citations from articles. Thank you.

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  • Web based file manager

    - by ToughPal
    Hi, I have been using extplorer http://extplorer.sourceforge.net/ Are there any good alternatives which run on PHP & like extplorer. I am having issues with several folder permissions. ie files that are stored under apache & the ftpuser? Regards,

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  • algorithmes with no executable example code

    - by gcc
    [link] http://stackoverflow.com/questions/2932016/parsing-of-mathematical-expressions (problem has been told before) ** program is to create the infix tree for the given math expression.** if the expression is given completely paranthesized then the out put is fine but when there are no paranthesis or some part paranthesized then the out put is wrong. cant get the idea how to solve. my problem is told above. I have some algorithm to solve my problem, but I have no simple code which will be guide for me. Can anyone give me simple code (not working code) so that I will try working to understand.(for a 3 hours ,I have been searching and reading some text to understand algorithm which is told above.Actually,there is no example code investigating how it is working. Can anyone send me example which is written in c not other language.

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  • Why checking out working copy with svn:// access method, with 127.0.0.1 fails , but,with localhost w

    - by Banani
    Hi!, I have setup svnserve server (1.6.5,plain, without apache) on Fedora. I start the svnserve with the command 'svnserve -d --foreground --listen-port=3690 -r /usr/local/svn-repos/proj-test' When user trying to checkout working copy from the local machine with command 'svn checkout svn://127.0.0.1/proj-test' gets following error svn: URL 'svn://127.0.0.1/proj-test' doesn't exists but, 'svn checkout svn://localhost/proj-test' works. I am curious to know why using 127.0.0.1 with svn:// fails? Thanks. Banani

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  • Surface Area of a Spheroid in Python

    - by user3678321
    I'm trying to write a function that calculates the surface area of a prolate or oblate spheroid. Here's a link to where I got the formulas (http://en.wikipedia.org/wiki/Prolate_spheroid & http://en.wikipedia.org/wiki/Oblate_spheroid). I think I've written them wrong, but here is my code so far; from math import pi, sqrt, asin, degrees, tanh def checkio(height, width): height = float(height) width = float(width) lst = [] if height == width: r = 0.5 * width surface_area = 4 * pi * r**2 surface_area = round(surface_area, 2) lst.append(surface_area) elif height > width: #If spheroid is prolate a = 0.5 * width b = 0.5 * height e = 1 - a / b surface_area = 2 * pi * a**2 * (1 + b / a * e * degrees(asin**-1(e))) surface_area = round(surface_area, 2) lst.append(surface_area) elif height < width: #If spheroid is oblate a = 0.5 * height b = 0.5 * width e = 1 - b / a surface_area = 2 * pi * a**2 * (1 + 1 - e**2 / e * tanh**-1(e)) surface_area = round(surface_area, 2) lst.append(surface_area, 2) return lst

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  • using ansi sql syntax for formatting Numeric

    - by changed
    Hi I am using two different databases for my project. Oracle and apache derby and trying to use as much as possible ansi sql syntax supported by both of the databases. I have a table with column amount_paid NUMERIC(26,2), in a table. My old code which was using oracle db need to retrieve value in this format SELECT LTRIM(TO_CHAR(amount_paid,'9,999,999,999,999.99')) . How can i do this using ANSI sql syntax.

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  • Given a number N, find the number of ways to write it as a sum of two or more consecutive integers

    - by hilal
    Here is the problem (Given a number N, find the number of ways to write it as a sum of two or more consecutive integers) and example 15 = 7+8, 1+2+3+4+5, 4+5+6 I solved with math like that : a + (a + 1) + (a + 2) + (a + 3) + ... + (a + k) = N (k + 1)*a + (1 + 2 + 3 + ... + k) = N (k + 1)a + k(k+1)/2 = N (k + 1)*(2*a + k)/2 = N Then check that if N divisible by (k+1) and (2*a+k) then I can find answer in O(N) time Here is my question how can you solve this by dynamic-programming ? and what is the complexity (O) ? P.S : excuse me, if it is a duplicate question. I searched but I can find

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  • Which license do you choose for google code projects, and why?

    - by Remus Rusanu
    Starting a new project on Google code offers a choice of several licenses: Apache License 2.0 Artistic License/GPL Eclipse Public License GPL v2/v3 Lesser GPL MIT Mozilla License 1.1 New BSD License Which license do you choose, ans why? I'm also interested in opinions which license is the least restrictive license for commercial users, ie. allow commercial use of the code w/o restrictions.

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  • How do I create a deb package with basic dependencies?

    - by Sam
    Hi so I am trying to create a deb package for a web application written in Java (it uses Apache Tomcat). My eventual goal is to start a repository that people can add to apt-get the software, but How do I make it so that the package knows to look for dependencies like tomcat, sun-java6-bin, and ant? How do I write an installer script to place the files and folders in the right place?

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  • How to retrieve the location of a control on the view?

    - by amok
    I have a button on a view, I want to add another button next to it when the first button is touched. Therefore I need it's top left corner to do the math. Here's what is puzzling me greatly: // this code is executed when the button is pressed NSLog(@"X:%f",moreButton.frame.origin.x); that returns on the first and second click the followings: 2010-04-24 22:58:25.883 iPad PopOver[8095:40b] X:-1.999002 2010-04-24 22:58:25.884 iPad PopOver[8095:40b] Y:0.000000 why and how can I get the x,y of an existing button on the view? (button created via IB) Thanks! mE ps: I have looked at similar posts and my code looks fine but I keep getting zeros (it's an ipad app if matters in any way)

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  • github repos cloning, but no tags/branches recreated??!!

    - by deepblue
    I've been cloning a few repos from github that, even though I know they have branches/tags, do not have them once I clone them onto my local drive. strage. I try to list the tags (git tag) but nothing comes up... I would look into .git/refs/tags/ and that too is empty. the repos in question are: http://github.com/jchris/hovercraft.git http://github.com/apache/couchdb.git any ideas? I really need specific tags/branches, and not the HEAD of the master

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  • Why does DateTime to Unix time use a double instead of an integer?

    - by Earlz
    I'm needing to convert a DateTime to a Unix timestamp. So I googled it looking for some example code In just about all the results I see, they use double as the return for such a function, even when explicitly using floor to convert it to an integer. Unix timestamps are always integers. So what problem is there with using either long or int instead of double? static double ConvertToUnixTimestamp(DateTime date) { DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0); TimeSpan diff = date - origin; return Math.Floor(diff.TotalSeconds); }

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