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• libgdx loading textures fails [duplicate]

  - by Chris

  This question already has an answer here: Why do I get this file loading exception when trying to draw sprites with libgdx? 4 answers I'm trying to load my texture with playerTex = new Texture(Gdx.files.internal("player.jpg")); player.jpg is located under my-gdx-game-android/assets/data/player.jpg I get an exception like this: Full Code: @Override public void create() { camera = new OrthographicCamera(); camera.setToOrtho(false, Gdx.graphics.getWidth(), Gdx.graphics.getHeight()); batch = new SpriteBatch(); FileHandle file = Gdx.files.internal("player.jpg"); playerTex = new Texture(file); player = new Rectangle(); player.x = 800-20; player.y = 250; player.width = 20; player.height = 80; } @Override public void dispose() { // dispose of all the native resources playerTex.dispose(); batch.dispose(); } @Override public void render() { Gdx.gl.glClearColor(1, 1, 1, 1); Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); camera.update(); batch.setProjectionMatrix(camera.combined); batch.begin(); batch.draw(playerTex, player.x, player.y); batch.end(); if(Gdx.input.isKeyPressed(Keys.DOWN)) player.y -= 50 * Gdx.graphics.getDeltaTime(); if(Gdx.input.isKeyPressed(Keys.UP)) player.y += 50 * Gdx.graphics.getDeltaTime(); }

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• Debugger for file I/O development?

  - by datenwolf

  Okay, the question title may be a bit cryptic. But it aptly describes what I'm looking for: I think every experienced coder went through this numerous times: You get a binary file format specification, you implement the reader for it, and… nothing works like expected. So you run your code in the debugger, go execute through the code line by line, every header field is read in seemingly correct, but when it comes to the bulk data, offset and indices no longer match up. What would really help in this situation was a binary file viewer, that shows you the progress of your file pointer, as you step through the code, and ideally would also highlight all memory maps. Then you could see the context of the current I/O operations, most notably those darn "off-by-one" mistakes, which are even more annoying when reading a file. Implementing such a debugger should not be too hard. traces on the process' file descriptors/handles and triggers on the I/O functions, to update the display. Only: I don't know of such a kind of debugger to exist. Do I just lack knowledge about the existance of such a tool, or is there really no such thing?

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• Solaris at LISA 2011

  - by dminer

  As is our custom, the Solaris team will be out in force at the USENIX LISA conference; this year it's in Boston so it's sort of a home game for me for a change.  The big event we'll have is Tuesday, December 6, the Oracle Solaris 11 Summit Day.  We'll be covering deployment, ZFS, Networking, Virtualization, Security, Clustering, and how Oracle apps run best on Solaris 11.  We've done this the past couple of years and it's always a very full day.On Wednesday, December 7, we've got a couple of BOF sessions scheduled back-to-back.  At 7:30 we'll have the ever-popular engineering panel, with all of us who are speaking at Tuesday's summit day there for a free-flowing discussion of all things Solaris.  Following that, Bart & I are hosting a second BOF at 9:30 to talk more about deployment for clouds and traditional data centers.Also, on Wednesday and Thursday we'll have a booth at the exhibition where there'll be demos and just a general chance to talk with various Solaris staff from engineering and product management.The conference program looks great and I look forward to seeing you there!

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• SSD on USB 3.0 doesnt always mount

  - by juergen

  I would like to ask you for some support for this issue. The SSD I use is apparently slightly damaged. Atm it shows this popular Corsair Series 3 problem. symptom: the disk is working for some minutes and then just suddenly stops. Two months ago it worked like a charm. This was my boot device in these days. So now I still need to copy some data out of the device which leads me to my question. Usually the SSD is working again for some minutes, when i unplug and replug its power. It gets detected by the system again and I can continue my backup. The problem on Ubuntu is, that it is not recognized again after two or three replugs. I have to reboot to bring it back. To specify this situation: when i unplug and replug my USB mouse before i reboot it is not recognized as well. So something seems to be wrong with the system also. my question: how do i fix this rebooting issue? I will post all the logs you need to analyse. The problem doesnt depend on the interface. I tried USB3.0, 2.0 and Sata already. Thank you! cheers my system: Ubuntu 11.10, Gigabyte G41MT-S2P, Intel E6750 Corsair Force Series 2 - F120, Digitus USB 3.0 Adapter, USB 3.0 interface card

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• Getting link to abstract indexed in Google Scholar

  - by JordanReiter

  We have a large digital library with thousands of papers indexed in Google Scholar. We allow Google Scholar to index our PDFs but they're blocked unless you have a subscription. So Google has full-text indexing/searching of our PDFs (great!) but then the links point just to those PDFs (boo!) instead of the more helpful abstract pages. Does anyone know what could cause an issue like this? I am, to the best of my knowledge, following all of the guidelines laid out in their Inclusion Guidelines. Here's some example meta data: <meta name="citation_title" content="Sample Title"/> <meta name="citation_author" content="LastName, FirstName"/> <meta name="citation_publication_date" content="2012/06/26"/> <meta name="citation_volume" content="1"/> <meta name="citation_issue" content="1"/> <meta name="citation_firstpage" content="10"/> <meta name="citation_lastpage" content="20"/> <meta name="citation_conference_title" content="Name of the Conference"/> <meta name="citation_isbn" content="1-234567-89-X"/> <meta name="citation_pdf_url" content="http://www.example.org/p/1234/proceeding_1234.pdf"/> <meta name="citation_fulltext_html_url" content="http://www.example.org/f/1234/"/> <meta name="citation_abstract_html_url" content="http://www.example.org/p/1234/"/> <link rel="canonical" href="http://www.example.org/p/1234/" /> example.org/p/1234 is the abstract page for the article; example.org/f/1234 is the fulltext link accessible to subscribers only (and to Google Scholar). example.org/p/1234/proceeding_1234.pdf is the fulltext PDF link.

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• MRP/SCP (Not ASCP) Common Issues

  - by Annemarie Provisero

  ADVISOR WEBCAST: MRP/SCP (Not ASCP) Common Issues PRODUCT FAMILY: Manufacturing - Value Chain Planning   March 9, 2010 at 8 am PT, 9 am MT, 11 am ET   This session is intended for System Administrators, Database Administrator's (DBA), Functional Users, and Technical Users. We will discuss issues that are fairly common and will provide the general solutions to same. We will not only review power point information but review some of the application setups/checks as well. TOPICS WILL INCLUDE: Gig data memory limitation Setup Requirements for MRP Manager, Planning Manager, and Standard Manager Why components are not planned Sales Order Flow to MRP Calendars Patching Miscellaneous Forecast Consumption - only if we have time A short, live demonstration (only if applicable) and question and answer period will be included. Oracle Advisor Webcasts are dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Click here to register for this session ------------------------------------------------------------------------------------------------------------- The above webcast is a service of the E-Business Suite Communities in My Oracle Support. For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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• Octrees and Vertex Buffer Objects

  - by sharethis

  As many others I want to code a game with a voxel based terrain. The data is represented by voxels which are rendered using triangles. I head of two different approaches and want to combine them. First, I could once divide the space in chunks of a fixed size like many games do. What I could do now is to generate a polygon shape for each chunk and store that in a vertex buffer object (vbo). Each time a voxel changes, the polygon and vbo of its chunk is recreated. Additionally it is easy to dynamically load and reload parts of the terrain. Another approach would be to use octrees and divide the space in eight cubes which are divided again and again. So I could efficiently render the terrain because I don't have to go deeper in a solid cube and can draw that as a single one (with a repeated texture). What I like to use for my game is an octree datastructure. But I can't imagine how to use vbos with that. How is that done, or is this impossible?

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• How is determined an impact of a requirement change on the existing code?

  - by MainMa

  Hi, How companies working on large projects evaluate an impact of a single modification on an existing code? Since my question is probably not very clear, here's an example: Let's take a sample business application which deals with tasks. In the database, each task has a state, 0 being "Pending", ... 5 - "Finished". A new requirement adds a new state, between 2nd and 3rd one. It means that: A constraint on the values 1 - 5 in the database must be changed, Business layer and code contracts must be changed to add a new state, Data access layer must be changed to take in account that, for example the state StateReady is now 6 instead of 5, etc. The application must implement a new state visually, add new controls for it, new localized strings for tool-tips, etc. When an application is written recently by one developer, it's more or less easy to predict every change to do. On the other hand, when an application was written for years by many people, no single person can anticipate every change immediately, without any investigation. So since this situation (such changes in requirements) is very frequent, I imagine there are already some clever techniques and ways to predict the impact. Is there any? Do you know any books which deal about this subject? Note: my question is not related to How do you deal with changing requirements? question. In fact, I'm not interested in evaluating the cost of a change, but rather the way to predict the parts of an application which will be concerned by the change. What will be those changes and how difficult they are really doesn't matter in my question.

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• CodePlex Daily Summary for Wednesday, August 13, 2014

  CodePlex Daily Summary for Wednesday, August 13, 2014Popular ReleasesLozzi's SharePoint 2013 Scripts: Lozzi.Fields (without Site Col Admin): This file is the same as the primary download, however I've removed the override allowing Site Collection Administrators access regardless of groups. This applies to the disableWithAllowance and hideWithAllowance functions.bitboxx bbcontact: 01.00.00: Release Notes bitboxx bbcontact 01.00.00bbcontact 01.00.00 will work for any DNN version 6.1.0 and up. - Initial releaseAD4 Application Designer for flow based .NET applications: AD4.AppDesigner.23.27: AD4.Iteration.23.27(Advanced Rendering Features) Refacturing: RenderStepPinsCaptions simplified by extending FlowChartStepPinDecoratorExtensions RenderFlowChartPinsCaptions simplified by FlowChartFlowPinDecoratorExtensions RenderWiresCaptions simplified by FlowChartWireDecoratorExtensions Design of tutorial samples updated Next tutorial finished: ThreadAsynchronizer Pattern (Version V7) ToDo: Some tutorials are unfinished but coming soon ... Note: The gluing code of the AD4.AppDesig...OooPlayer: 1.1: Added: Support for speex, TAK and OptimFrog files Added: An option to not to load cover art Added: Smaller package size Fixed: Unable to drag&drop audio files to playlist Updated: FLAC, WacPack and Opus playback libraries Updated: ID3v1 and ID3v2 tag librariesEWSEditor: EwsEditor 1.10 Release: • Export and import of items as a full fidelity steam works - without proxy classes! - I used raw EWS POSTs. • Turned off word wrap for EWS request field in EWS POST windows. • Several windows with scrolling texts boxes were limiting content to 32k - I removed this restriction. • Split server timezone info off to separate menu item from the timezone info windows so that the timezone info window could be used without logging into a mailbox. • Lots of updates to the TimeZone window. • UserAgen...Python Tools for Visual Studio: 2.1 RC: Release notes for PTVS 2.1 RC We’re pleased to announce the release candidate for Python Tools for Visual Studio 2.1. Python Tools for Visual Studio (PTVS) is an open-source plug-in for Visual Studio which supports programming with the Python language. PTVS supports a broad range of features including CPython/IronPython, editing, IntelliSense, interactive debugging, profiling, Microsoft Azure, IPython, and cross-platform debugging support. PTVS 2.1 RC is available for: Visual Studio Expre...Aspose for Apache POI: Missing Features of Apache POI SS - v 1.2: Release contain the Missing Features in Apache POI SS SDK in comparison with Aspose.Cells What's New ? Following Examples: Create Pivot Charts Detect Merged Cells Sort Data Printing Workbooks Feedback and Suggestions Many more examples are available at Aspose Docs. Raise your queries and suggest more examples via Aspose Forums or via this social coding site.AngularGo (SPA Project Template): AngularGo.VS2013.vsix: First ReleaseDaphne 2014 - application for playing Czech Draughts: Daphne 2014 verze 0.9.0.21: Daphne 2014 verze 0.9.0.21MFCBDAINF: MFCBDAINF: Added recognition of TBS, Hauppauge, DVBWorld and FireDTV proprietary GUID'sFluffy: Fluffy 0.3.35.4: Change log: Text editorSKGL - Serial Key Generating Library: SKGL Extension Methods 4 (1.0.5.1): This library contains methods for: Time change check (make sure the time has not been changed on the client computer) Key Validation (this will use http://serialkeymanager.com/ to validate keys against the database) Key Activation (this will, depending on the settings, activate a key with a specific machine code) Key Activation Trial (allows you to update a key if it is a trial key) Get Machine Code (calculates a machine code given any hash function) Get Eight Byte Hash (returns an...Touchmote: Touchmote 1.0 beta 13: Changes Less GPU usage Works together with other Xbox 360 controls Bug fixesPublic Key Infrastructure PowerShell module: PowerShell PKI Module v3.0: Important: I would like to hear more about what you are thinking about the project? I appreciate that you like it (2000 downloads over past 6 months), but may be you have to say something? What do you dislike in the module? Maybe you would love to see some new functionality? Tell, what you think! Installation guide:Use default installation path to install this module for current user only. To install this module for all users — enable "Install for all users" check-box in installation UI ...Modern UI for WPF: Modern UI 1.0.6: The ModernUI assembly including a demo app demonstrating the various features of Modern UI for WPF. BREAKING CHANGE LinkGroup.GroupName renamed to GroupKey NEW FEATURES Improved rendering on high DPI screens, including support for per-monitor DPI awareness available in Windows 8.1 (see also Per-monitor DPI awareness) New ModernProgressRing control with 8 builtin styles New LinkCommands.NavigateLink routed command New Visual Studio project templates 'Modern UI WPF App' and 'Modern UI W...Roll20 Custom Power Card Macro Generator: R20CPCMG 0.2.0.0 Public Beta: This is the beta release for version 0.2.0.0. Its still very much a work in progress, but I'd rather get this out now before another lapse in updates so we can solicit feedback from the community. The two main updates for this version is that you can now import macros and you can customize the tag buttons and group them by game system. The Import Macro function turns the raw text, like the following, into something you can easily edit inside the program. !power --name|Whirling Assault --us...Utility Database: UtilityDB.2.0: Release Notes: Version 2.0 This is the second release of the UtilityDB, it builds on top of and includes the Version 1.8 of code. This release focus on performance metrics in particular Disk I/O. The deployment scripts have been rewritten to utilize transactions to insure completeness of script execution. This project releases the source code as a SQL Server 2012 project file. The intended way to deliver the scripts to the database is through the execution of the @BuildScript.sql in the ...ClosedXML - The easy way to OpenXML: ClosedXML 0.74.0: Multiple thread safe improvements including AdjustToContents XLHelper XLColor_Static IntergerExtensions.ToStringLookup Exception now thrown when saving a workbook with no sheets, instead of creating a corrupt workbook Fix for hyperlinks with non-ASCII Characters Added basic workbook protection Fix for error thrown, when a spreadsheet contained comments and images Fix to Trim function Fix Invalid operation Exception thrown when the formula functions MAX, MIN, and AVG referenc...SEToolbox: SEToolbox 01.042.019 Release 1: Added RadioAntenna broadcast name to ship name detail. Added two additional columns for Asteroid material generation for Asteroid Fields. Added Mass and Block number columns to main display. Added Ellipsis to some columns on main display to reduce name confusion. Added correct SE version number in file when saving. Re-added in reattaching Motor when drag/dropping or importing ships (KeenSH have added RotorEntityId back in after removing it months ago). Added option to export and r...jQuery List DragSort: jQuery List DragSort 0.5.2: Fixed scrollContainer removing deprecated use of $.browser so should now work with latest version of jQuery. Added the ability to return false in dragEnd to revert sort order Project changes Added nuget package for dragsort https://www.nuget.org/packages/dragsort Converted repository from SVN to MercurialNew Projectsangle.works: Sample AngularJS projectArtezio spTree for SharePoint 2013: spTree is a jQuery plugin to display SharePoint websites and lists in a tree view. It uses jsTree plugin to display data, expand and complement its settings.DigitalProject: no project ,no project ,no project ,no project ,no project ,no project ,no project ,no project ,no project ,no project ,no project ,no project ,no project ,no popenelecmedicrec: its an open source emrPetriFlow: A new solution for workflow using Petri NetReflexive .Net: Stream transformation over durable and transient channelsrunner-prototype: Small game prototype for self-practicing, likely no use at all for anyone else.Spizzi PowerShell Module: This project provides different PowerShell CmdLet's combined into one module to extend the built-in PowerShell Modules.Testill: Test Web Fabricator: A highly composable web fabricwingate log parser: wingate log parser

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• exception occurred for backend host '127.0.0.1/7001/7001': 'CONNECTION_REFUSED [os error=0, line 1715 of URL.cpp]: Error connecting to host 127.0.0.1:7001'

  - by Vijaya Moderator -Oracle

  When you hit the WLS Server via Proxy server, we may get the issue like below... [09/Jun/2014:06:05:50] failure ( 3284): for host 127.0.0.1 trying to GET /.../soundlink_wireless_​speaker/index.jsp, wl-proxy reports: exception occurred for backend host '127.0.0.1/7001/0': 'PROTOCOL_ERROR [line 835 of URL.cpp]: Backend Server not responding' [09/Jun/2014:06:05:50] failure ( 3284): for host 127.0.0.1 trying to GET /.../soundlink_wireless_​speaker/index.jsp, wl-proxy reports: exception occurred for backend host '127.0.0.1/7001/0': 'PROTOCOL_ERROR [line 835 of URL.cpp]: Backend Server not responding' [09/Jun/2014:06:05:51] failure ( 3284): for host 127.0.0.1 trying to GET /.../soundlink_wireless_​speaker/index.jsp, wl-proxy reports: exception occurred for backend host '127.0.0.1/7001/7001': 'CONNECTION_REFUSED [os error=0, line 1715 of URL.cpp]: Error connecting to host 127.0.0.1:7001' To solve the issue 1.  Check if there is any issue at the firewall by executing the below command     telnet 127.0.0.1 7001 2.  Also access  using the hostname instead of IP Address  If it errors out like below   Microsoft Telnet> o 127.0.0.1 7001 connecting to 127.0.0.1  Warning thrown at weblogic console: <BEA-000449> <Closing socket as no data read from it on 127.0.0.1:54,356 during the configured idle timeout of 5 secs>  Test the same again by disabling the firewall. Below are the steps... 1)Go to Start ----> Run  2)Type services.msc  3)In services.msc search for "Windows Firewall" and Right Click on "Windows Firewall"---->Select Stop. 4)Access the Weblogic URL  If the issue is resolved after disabling firewall, Request your  OS System Admin to open the port 7001 at the firewall end to access the application

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• Models, collections...and then what? Processes?

  - by Dan

  I'm a LAMP-stack dev who's been more on the JavaScript side the last few years and really enjoying the Model + Collection approach to data entities that BackboneJS, etc. uses. It's helped me organize my code in such a way that it is extremely portable, keeping all my properties and methods in the scope (model, collection, etc.) in which they apply. One thing that keeps bugging me though is how to organize the next level up, the 'process layer' as you might call it, that can potentially operate on instances of either models or collections or whatever else. Where should methods like find() (which returns a collection) and create() (which returns a model) reside? I know some people would put a create() in the Collection prototype, but while a collection operates on models I don't think it's exactly right to create them. And while a find() would return a collection I don't think it correct to have that action within the collection prototype itself (it should be a layer up). Can anyone offer some examples of any patterns that employ some kind of OOP-friendly 'process' layer? I'm sorry if this is a fairly well-known discussion but I'm afraid I can't seem to find the terminology to search for.

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• What does SVN do better than git?

  - by doug

  No question that the majority of debates over programmer tools distill to either personal choice (by the user) or design emphasis, i.e., optimizing design according to particular uses cases (by the tool builder). Text Editors are probably the most prominent example--a coder who works on a Windows at work and codes in Haskell on the Mac at home, values cross-platform and compiler integration and so chooses Emacs over Textmate, etc. It's less common that a newly introduced technology is genuinely, demonstrably superior to the extant options. I wonder if this is in fact the case with version-control systems, in particular, centralized VCS (CVS, SVN) versus distributed VCS (git, hg)? I used SVN for about five years, and SVN is currently used where I work. A little less than three years ago, I switched to git (and gitHub) for all of my personal projects. I can think of a number of advantages of git over subversion (and which for the most part abstract to advantages of distributed over centralized VCS), but I cannot think of one contra example--some task (that's relevant and arises in a programmers usual workflow) that subversion does better than git. The only conclusion I have drawn from this is that I don't have any data--not that git is better, etc. My guess is that such counter-examples exist, hence this question.

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• OpenGL Application displays only 1 frame

  - by Avi

  EDIT: I have verified that the problem is not the VBO class or the vertex array class, but rather something else. I have a problem where my vertex buffer class works the first time its called, but displays nothing any other time its called. I don't know why this is, and it's also the same in my vertex array class. I'm calling the functions in this order to set up the buffers: enable client states bind buffers set buffer / array data unbind buffers disable client states Then in the draw function, that's called every frame: enable client states bind buffers set pointers unbind buffers bind index buffer draw elements unbind index buffer disable client states Is there something wrong with the order in which I'm calling the functions, or is it a more specific code error? EDIT: here's some of the code Code for setting pointers: //element is the vertex attribute being drawn (e.g. normals, colors, etc.) static void makeElementPointer(VertexBufferElements::VBOElement element, Shader *shade, void *elementLocation) { //elementLocation is BUFFER_OFFSET(n) if a buffer is bound switch (element) { .... glVertexPointer(3, GL_FLOAT, 0, elementLocation); //changes based on element .... //but I'm only dealing with } //vertices for now } And that's basically all the code that isn't just a straight OpenGL function call.

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• Hosting and scaling a Facebook application in the cloud? [migrated]

  - by DhruvPathak

  We would be building a Facebook application in Django (Python), but still not sure of where to host it economically, and with a good provision to scale in case the app gets viral. Some details about the app: Would be HTML based like a website,using django as a framework. 100K is the number of expected pageviews in a day, if the app is viral. The users will not generate any media content, only some database data will be generated by them. It would be great if someone with more experience can guide on following points: A) Hosting on Google app engine or Amazon EC2 or some other cloud like RackSpace : Preferable points found in AppEngine were ease of deployment, cost effectiveness and easy scaling. For EC2: Full hold of the virtual machine,Amazon NoSQL and RDMBS database services in case we decide to use them. B) Does backend technology affect monthly cost? eg. would CPU and memory usage difference of Django over , for example , PHP framework like CodeIgnitor really make remarkable difference in running costs. (Here is the article that triggered this thought process : http://journal.dedasys.com/2010/01/12/rough-estimates-of-the-dollar-cost-of-scaling-web-platforms-part-i#comments) C) Does something like Heroku , which provides additional services over Amazon EC2, prove to be better than raw cloud management? It is not that we are trying for premature scaling, we just want to have a good start so that we are ready to handle unpredicted growth and scale.

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• Learning a new concept - write from scratch or use frameworks?

  - by Stu

  I have recently been trying to learn about MVVM and all of the associated concepts such as repositories, mediators, data access. I made a decision that I would not use any frameworks for this so that I could gain a better understanding of how everything worked. I’m beginning to wonder if that was the best idea because I have hit some problems which I am not able to solve, even with the help of Stack Overflow! Writing from scratch I still feel that you have a much better understanding of something when you have been in the guts of it than if you were at a higher level. The other side of that coin is that you are in the guts of something that you don't fully understand which will lead to bad design decisions. This then makes it hard to get help because you will create unusual scenarios which are less likely to occur when you working within the confines of a framework. I have found that there are plenty of tutorials on the basics of a concept but very few that take you all the way from novice to expert. Maybe I should be looking at a book for this? Using frameworks The biggest motivation for me to use frameworks is that they are much more likely to be used in the workplace than a custom rolled solution. This can be quite a benefit when starting a new job if it's one less thing you have to learn. I feel that there is much better support for a framework than a custom solution which makes sense; many more people are using the framework than the solution that you created. The level of help is much wider as well, from basic questions to really specific, detailed questions. I would be interested to hear other people's views on this. When you are learning something new, should you/do you use frameworks or not? Why? If it's a combination of both, when do you stop one and move on to the other?

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• Testing a codebase with sequential cohesion

  - by iveqy

  I've this really simple program written in C with ncurses that's basically a front-end to sqlite3. I would like to implement TDD to continue the development and have found a nice C unit framework for this. However I'm totally stuck on how to implement it. Take this case for example: A user types a letter 'l' that is captured by ncurses getch(), and then an sqlite3 query is run that for every row calls a callback function. This callback function prints stuff to the screen via ncurses. So the obvious way to fully test this is to simulate a keyboard and a terminal and make sure that the output is the expected. However this sounds too complicated. I was thinking about adding an abstraction layer between the database and the UI so that the callback function will populate a list of entries and that list will later be printed. In that case I would be able to check if that list contains the expected values. However, why would I struggle with a data structure and lists in my program when sqlite3 already does this? For example, if the user wants to see the list sorted in some other way, it would be expensive to throw away the list and repopulate it. I would need to sort the list, but why should I implement sorting when sqlite3 already has that? Using my orginal design I could just do an other query sorted differently. Previously I've only done TDD with command line applications, and there it's really easy to just compare the output with what I'm expected. An other way would be to add CLI interface to the program and wrap a test program around the CLI to test everything. (The way git.git does with it's test-framework). So the question is, how to add testing to a tightly integrated database/UI.

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• Am I programming too slow?

  - by Jonn

  I've only been a year in the industry and I've had some problems making estimates for specific tasks. Before you close this, yes, I've already read this: http://programmers.stackexchange.com/questions/648/how-to-respond-when-you-are-asked-for-an-estimate and that's about the same problem I'm having. But I'm looking for a more specific gauge of experiences, something quantifiable or probably other programmer's average performances which I should aim for and base my estimates. The answers range from weeks, and I was looking more for an answer on the level of a task assigned for a day or so. (Note that this doesn't include submitting for QA or documentations, just the actual development time from writing tests if I used TDD, to making the page, before having it submitted to testing) My current rate right now is as follows (on ASP.NET webforms): Right now, I'm able to develop a simple data entry page with a grid listing (no complex logic, just Creating and Reading) on an already built architecture, given one full day's (8 hours) time. Adding complex functionality, and Update and Delete pages add another full day to the task. If I have to start the page from scratch (no solution, no existing website) it takes me another full day. (Not always) but if I encounter something new or haven't done yet it takes me another full day. Whenever I make an estimate that's longer than the expected I feel that others think that I'm lagging a lot behind everyone else. I'm just concerned as there have been expectations that when it's just one page it should take me no more than a full day. Yes, there definitely is more room for improvement. There always is. I have a lot to learn. But I would like to know if my current rate is way too slow, just average, or average for someone no longer than a year in the industry.

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• Interesting Blog Stats&ndash;What Sells

  - by Tim Murphy

  Just out of curiosity I decided to find out what the most frequently post were on my blog.  I knew what number one would be just from checking daily stats from time to time.  The main theme that I found in the data is that either pain or humor can really bring people to find your posts.  My most viewed post is on turning off Toshiba Flashcards at over 54K views (I think Toshiba should take notice of this massive fail).  The second highest is on Interesting Blog titles.  This was nothing more than a post that I had put up on a whim of humorous blog titles I had run across.  This post earned over 26K views.  Going down from there the theme stays the same either people looking for something humorous or people with a problem that you have an answer for are the posts that are most likely to get attention.  Remember that blogging can be a great service to your readers.  Keep it interesting and they will come. del.icio.us Tags: Blogging,Blog Topics,Blog Stats

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• Find Thousands of Oracle Jobs on oDesk

  - by Brandye Barrington

  We are happy to announce we have teamed up with oDesk, the world’s largest and fastest-growing online workplace, to bring thousands of job opportunities to the Oracle Certified community.  On oDesk, skilled independent professionals can tap into global demand for their skills by accessing hundreds of thousands of job opportunities around the world—more than 444,000 jobs were posted on oDesk in Q2 2012 alone.  And with the freedom to work whenever and wherever they like, on the projects they choose and at the rate they set, oDesk contractors are building their online reputations and taking control of their careers—oDesk data shows that contractors increase their rates by an average of 190% over three years. And with oDesk’s new Oracle Certified Group, contractors can set themselves apart by showcasing an Oracle Certified badge on their profile, giving them a competitive advantage when they apply to the thousands of open Oracle jobs on oDesk.  oDesk is free to join—as is the Oracle Certified Group—and guarantees payment for hourly work. With more than 480,000 businesses from around the world registered on the platform, professionals have a wide range of jobs to choose from, including those that require MySQL, Java, and many other types of Oracle skills. Learn more about Oracle job opportunities and join the Certified Group on oDesk here.

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• algorithm for Virtual Machine(VM) Consolidation in Cloud

  - by devansh dalal

  PROBLEM: We have N physical machines(PMs) each with ram Ri, cpu Ci and a set of currently scheduled VMs each with ram requirement ri and ci respectively Moving(Migrating) any VM from one PM to other has a cost associated which depends on its ram ri. A PM with no VMs is shut down to save power. Our target is to minimize the weighted sum of (N,migration cost) by migrating some VMs i.e. minimize the number of working PMs as well as not to degrade the service level due to excessive migrations. My Approach: Brute Force approach is choosing the minimum loaded PM and try to fit its VMs to other PMs by First Fit Decreasing algorithm or we can select the victim PMs and target PMs based on their loading level and shut down victims if possible by moving their VMs to targets. I tried this Greedy approach on the Data of Baadal(IIT-D cloud) but It isn't giving promising results. I have also tried to study the Ant colony optimization for dynamic VM consolidating but was unable to understand very much. I used the links. http://dumas.ccsd.cnrs.fr/docs/00/72/52/15/PDF/Esnault.pdf http://hal.archives-ouvertes.fr/docs/00/72/38/56/PDF/RR-8032.pdf Would anyone please explain the solution or suggest any new approach for better performance soon. Thanks in advance.

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• Learn More About the PO Approvals Analyzer

  - by LuciaC

  You may think that the PO Approvals Analyzer for Release 12 is only for diagnosing problems when you have a single Purchase Order or Requisition stuck in process, but it offers valuable information to keep your Procurement environment healthy.  Consider this:     The analyzer will list all Procurement critical patches that have not been applied.     It will provide Procurement invalid objects with error messages and provides solutions.     Validations of setup and database conditions for example max extents and space issues. Also the analyzer can be run on all Purchasing documents starting from a date you enter.  This multiple document check provides validations on:     Data corruption issues.     Workflow errors with generic messages i.e. document manager errors.     Documents with workflows in error that cannot be progressed via the application. And, unlike other diagnostics, the analyzer provides known solutions to the problems indicated! So access the Analyzer today and run it on your instance!  Access it now via Doc ID 1525670.1.

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• PyGTK/Quickly Add string to ListStore

  - by AllRadioisDead

  I'm trying to build an application that will prompt the user for a string, and then add that string to a Scrolling Listview object using quickly and PyGTK. I've been following this tutorial: http://developer.ubuntu.com/resources/app-developer-cookbook/multimedia/creating-a-simple-media-player/ When I hit the add button, the prompt comes up properly and I'm able to enter the string. The column appears correctly but the list ends up being blank. What am I doing wrong? import gettext from gettext import gettext as _ gettext.textdomain('spiderweb') from gi.repository import Gtk # pylint: disable=E0611 import logging logger = logging.getLogger('spiderweb') from spiderweb_lib import Window from spiderweb.AboutSpiderwebDialog import AboutSpiderwebDialog from spiderweb.PreferencesSpiderwebDialog import PreferencesSpiderwebDialog from quickly import prompts from quickly.widgets.dictionary_grid import DictionaryGrid import os # See spiderweb_lib.Window.py for more details about how this class works class SpiderwebWindow(Window): __gtype_name__ = "SpiderwebWindow" def finish_initializing(self, builder): # pylint: disable=E1002 """Set up the main window""" super(SpiderwebWindow, self).finish_initializing(builder) self.AboutDialog = AboutSpiderwebDialog self.PreferencesDialog = PreferencesSpiderwebDialog # Code for other initialization actions should be added here. self.supported_web_formats = [".net",".html", ".com"] def on_addbutton_clicked(self, widget, data=None): #let the user choose a path with the directory chooser response, string = prompts.string("Enter a string", "Please enter string:", "Sample Text") #make certain the user said ok before working if response == Gtk.ResponseType.OK: #make a list of the supported media files media_files = Gtk.ListStore(str) #add a dictionary to the list of media files media_files.append({"String":string}) #remove any children in scrolled window for c in self.ui.scrolledwindow1.get_children(): self.ui.scrolledwindow1.remove(c) #create the grid with list of dictionaries #only show the File column media_grid = DictionaryGrid(media_files, keys=["File"]) #show the grid, and add it to the scrolled window media_grid.show_all() self.ui.scrolledwindow1.add(media_grid)

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• What is the recommended MongoDB schema for this quiz-engine scenario?

  - by hughesdan

  I'm working on a quiz engine for learning a foreign language. The engine shows users four images simultaneously and then plays an audio file. The user has to match the audio to the correct image. Below is my MongoDB document structure. Each document consists of an image file reference and an array of references to audio files that match that image. To generate a quiz instance I select four documents at random, show the images and then play one audio file from the four documents at random. The next step in my application development is to decide on the best document schema for storing user guesses. There are several requirements to consider: I need to be able to report statistics at a user level. For example, total correct answers, total guesses, mean accuracy, etc) I need to be able to query images based on the user's learning progress. For example, select 4 documents where guess count is 10 and accuracy is <=0.50. The schema needs to be optimized for fast quiz generation. The schema must not cause future scaling issues vis a vis document size. Assume 1mm users who make an average of 1000 guesses. Given all of this as background information, what would be the recommended schema? For example, would you store each guess in the Image document or perhaps in a User document (not shown) or a new document collection created for logging guesses? Would you recommend logging the raw guess data or would you pre-compute statistics by incrementing counters within the relevant document? Schema for Image Collection: _id "505bcc7a45c978be24000005" date 2012-09-21 02:10:02 UTC imageFileName "BD3E134A-C7B3-4405-9004-ED573DF477FE-29879-0000395CF1091601" random 0.26997075392864645 user "2A8761E4-C13A-470E-A759-91432D61B6AF-25982-0000352D853511AF" audioFiles [ 0 { audioFileName "C3669719-9F0A-4EB5-A791-2C00486665ED-30305-000039A3FDA7DCD2" user "2A8761E4-C13A-470E-A759-91432D61B6AF-25982-0000352D853511AF" audioLanguage "English" date 2012-09-22 01:15:04 UTC } 1 { audioFileName "C3669719-9F0A-4EB5-A791-2C00486665ED-30305-000039A3FDA7DCD2" user "2A8761E4-C13A-470E-A759-91432D61B6AF-25982-0000352D853511AF" audioLanguage "Spanish" date 2012-09-22 01:17:04 UTC } ]

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• Why is Ubuntu unmounting my primary hard drive?

  - by Twisol

  I'm running Ubuntu 10.10 on my laptop (an Asus G73j), dual-booting Windows 7 if that matters. After using the computer for couple of hours or so, I get a popup complaining that a file was unmounted, then my GNOME desktop panels disappear. I can't save any unsaved work (the file browser shows "Filesystem" as totally empty), and other programs break in odd ways (like Chrome can't browse to any new pages, but keeps current ones going... at least I still have Pandora to listen to when this happens!). I've tried looking in the system logs to no avail; I'm assuming that it can't write any errors to the logs because, of course, the logs are on the primary hard drives. This started happening maybe a few days ago. Yesterday I upgraded from 10.4, but I believe it was happening before then. Any advice for figuring this out? EDIT: It just happened again, and I heard a small little clicky sound from the hard drive about five seconds before things went south. I'm thinking I should start backing up ASAP. In response to a comment, here's the dmesg output: http://askubuntu.pastebin.com/uYGshBay Also, the SMART status says the disk has a few bad sectors, and the detailed data says there are 14. It says it passed the self-assessment though. Lastly, this doesn't seem to be happening when I'm on Windows. I recently re-enabled ureadahead (which I disabled ages ago because it was causing Ubuntu to hang at the startup logo), could that be the source of the problem? I've disabled it again to see.

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• Static pages for large photo album

  - by Phil P

  I'm looking for advice on software for managing a largish photo album for a website. 2000+ pictures, one-time drop (probably). I normally use MarginalHack's album, which does what I want: pre-generate thumbnails and HTML for the pictures, so I can serve without needing a dynamic run-time, so there's less attack surface to worry about. However, it doesn't handle pagination or the like, so it's unwieldy for this case. This is a one-time drop for pictures from a wedding, with a shared usercode/password for distribution to the guests; I don't wish to put the pictures in a third-party hosting environment. I don't wish to use PHP, simply because that's another run-time to worry about, I might relent and use something dynamic if it's Python or Perl based (as I can maintain things written in those). I currently have: Apache serving static files, Album-generated, some sub-directories to divide up the content to be a little more manageable. Something like Album but with pagination already handled would be great, but I'm willing to have something a little more dynamic, if it lets people comment or caption and store the extra data in something like an sqlite DB. I'd want something light-weight, not a full-blown CMS with security updates every three months. I don't want to upload pictures of other peoples' children into a third-party free service where I don't know what the revenue model is. (For my site: revenue is none, costs out of pocket). Existing server hosting is *nix, Apache, some WSGI. Client-side I have MacOS. Any advice?

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