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  • How to find classes that use certain DB tables

    - by Songo
    Problem: I'm asked to prepare a document where all our DB tables are listed and I'm supposed to list all Controllers that uses these DB tables for read and another list for Controllers that do write operations. Ex: +------------------------------------------+------------+ | DB table | tbl_Orders | +------------------------------------------+------------+ |Controllers that perform read operations | ?? | +------------------------------------------+------------+ |Controllers that perform write operations | ?? | +------------------------------------------+------------+ We are trying to write some documentation for a legacy system built using Zend framework. The code is scattered everywhere. There is code in the Controllers, in the models and even in the views. The application uses PROPEL as an ORM. What makes this really difficult is that the Controller may not be directly calling the table, but it may be instantiating a model class that calls that table. Is there an educated way to approach this crazy task? Note: Searching for the table name won't provide a solution because if a model uses that table I wouldn't know which Controller is using that model.

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  • WindowsIdentity Token in Legacy ASP

    - by Max Schmeling
    I've created a .Net library at work that is used by all of our developers. The security part of it uses Microsoft AzMan for the security backend. In order to create a security (AzMan) ClientContext I have to pass it a token value (as a uint). This is all fine an dandy until I needed to make a COM wrapper for our common library so some of our legacy pages could take advantage of it without being rewritten for now. I cannot figure out how to get the token value to pass to AzMan from legacy ASP. The COM wrapper is setup to run as a COM Server and runs as a specific user that we use here for all COM objects, therefor the common library can't just pull the identity using .Net. Any ideas?

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  • How can a large, Fortran-based number crunching codebase be modernized?

    - by Dave Mateer
    A friend in academia asked me for advice (I'm a C# business application developer). He has a legacy codebase which he wrote in Fortran in the medical imaging field. It does a huge amount of number crunching using vectors. He uses a cluster (30ish cores) and has now gone towards a single workstation with 500ish GPUS in it. However where to go next with the codebase so: Other people can maintain it over next 10 year cycle Get faster at tweaking the software Can run on different infrastructures without recompiles After some research from me (this is a super interesting area) some options are: Use Python and CUDA from Nvidia Rewrite in a functional language. For example, F# or Haskell Go cloud based and use something like Hadoop and Java Learn C What has been your experience with this? What should my friend be looking at to modernize his codebase? UPDATE: Thanks @Mark and everyone who has answered. The reasons my friend is asking this question is that it's a perfect time in the projects lifecycle to do a review. Bringing research assistants up to speed in Fortran takes time (I like C#, and especially the tooling and can't imagine going back to older languages!!) I liked the suggestion of keeping the pure number crunching in Fortran, but wrapping it in something newer. Perhaps Python as that seems to be getting a stronghold in academia as a general-purpose programming language that is fairly easy to pick up. See Medical Imaging and a guy who has written a Fortran wrapper for CUDA, Can I legally publish my Fortran 90 wrappers to Nvidias' CUFFT library (from the CUDA SDK)?.

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  • Customizing the NUnit GUI for data-driven testing

    - by rwong
    My test project consists of a set of input data files which is fed into a piece of legacy third-party software. Since the input data files for this software are difficult to construct (not something that can be done intentionally), I am not going to add new input data files. Each input data file will be subject to a set of "test functions". Some of the test functions can be invoked independently. Other test functions represent the stages of a sequential operation - if an earlier stage fails, the subsequent stages do not need to be executed. I have experimented with the NUnit parametrized test case (TestCaseAttribute and TestCaseSourceAttribute), passing in the list of data files as test cases. I am generally satisfied with the the ability to select the input data for testing. However, I would like to see if it is possible to customize its GUI's tree structure, so that the "test functions" become the children of the "input data". For example: File #1 CheckFileTypeTest GetFileTopLevelStructureTest CompleteProcessTest StageOneTest StageTwoTest StageThreeTest File #2 CheckFileTypeTest GetFileTopLevelStructureTest CompleteProcessTest StageOneTest StageTwoTest StageThreeTest This will be useful for identifying the stage that failed during the processing of a particular input file. Is there any tips and tricks that will enable the new tree layout? Do I need to customize NUnit to get this layout?

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  • How to keep background requests in sequence

    - by Jason Lewis
    I'm faced with implementing interfaces for some rather archaic systems, for handling online deposits to stored value accounts (think campus card accounts for students). Here's my dilemma: stage 1 of the process involves passing the user off to a thrid-party site for the credit card transaction, like old-school PayPal. Step two involves using a proprietary protocol for communicating with a legacy system for conducting the actual deposit. Step two requires that each transaction have a unique sequence number, and that the requests' seqnums are in order. Since we're logging each transaction in Postgres, my first thought was to take a number from a sequence in the DB, guaranteeing uniqueness. But since we're dealing with web requests that might come in near-simultaneously, and since latency with the return from the off-ste payment processor is beyond our control, there's always the chance for a race condition in the order of requests passed back to the proprietary system, and if the seqnums are out of order, the request fails silently (brilliant, right?). I thought about enqueuing the requests in Redis and using Resque workers to process them (single worker, single process, so they are processed in order), but we need to be able to give the user feedback as to whether the transaction was processed successfully, so this seems less feasible to me. I've tried to make this application handle concurrency well (as much as possible for a Ruby on Rails app), but now we're in a situation where we have to interact with a system that is designed to be single process, single threaded, and sequential. If it at least gave an "out of order" error, I could just increment (or take the next value off the sequence), but it's designed to fail silently in the event of ANY error. We are handling timeouts in a way that blocks on I/O, but since the application uses multiple workers (Unicorn), that's no guarantee. Any ideas/suggestions would be appreciated.

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  • Google libère le système de build utilisé pour Chrome, « Ninja » serait dix fois plus rapide que GNU Make

    Google libère le système de build utilisé pour Chrome « Ninja » serait dix fois plus rapide que GNU Make Evan Martin, l'un des développeurs de Google Chrome, vient de passer sous licence open-source son système de Build baptisé « Ninja », actuellement utilisé pour porter le navigateur de Google sur plusieurs plateformes. Ninja serait considérablement plus rapide que les autres moteurs de production existants, d'où son nom. Martin affirme sur son site personnel que Ninja finit le Build de Chrome (environ 30 000 fichiers source, Webkit compris) en seulement une seconde après la modification d'un seul fichier (contre 10 pour GNU Make et 40 secondes préalables mêmes au ...

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  • Kinect bientôt dans l'espace ? Des chercheurs utilisent la technologie comme système d'amarrage dans le nano-satellite STRaND-2

    Kinect bientôt dans l'espace ? Des chercheurs utilisent la technologie comme système d'amarrage dans le nano-satellite STRaND-2 Le capteur de Microsoft Kinect fait son entrée dans le domaine spatial, et ira où aucun humain n'est encore allé. Des ingénieurs britanniques de l'Université de Surrey et ceux du constructeur de satellites Surry Satellite Technology (SSTL) travaillent sur un nouveau système d'amarrage des satellites en utilisant Kinect. [IMG]http://rdonfack.developpez.com/images/kinect.jpg[/IMG] Les scientifiques ont construit un satellite (STRaND-2) équipé d'une caméra de profondeur Kinect qui lui permettra de localiser et de se joindre à d'autres ...

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  • Windows 8 enfin plus utilisé que Vista et devient le troisième système d'exploitation le plus employé au monde

    Windows 8 enfin plus utilisé que Vista et devient le troisième système d'exploitation le plus employé au mondeÂgé de huit mois déjà, Windows 8 dépasse son lointain cousin Vista selon le baromètre de Net Applications.Le système d'exploitation possède désormais une part de marché de 5,1 % et monte se retrouve donc à la troisième place du podium au détriment de Vista qui possède 4,62 %. Une hausse trimestrielle de 1,79 points pour Windows 8 qui était encore relégué à la quatrième place des systèmes d'exploitation les plus utilisés le mois d'avant.Pour l'instant, le niveau d'adoption de Windows 8 est encore loin d'atteindre celui de son prédécesseur Windows 7 bien que celui-ci s'essouffle légèrement ...

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  • Comment améliorer le temps de compilation pour C/C++ ? Apple propose un système de modules pour remplacer les en-têtes

    Comment améliorer le temps de compilation pour C/C++ ? Apple propose un système de modules pour remplacer les en-têtes Un des problèmes assez décriés des langages C et C++ est le temps de compilation, qui est un peu plus long. Cela est surtout dû à l'utilisation des en-entêtes (headers). Les développeurs d'Apple viennent de proposer un document assez intéressant qui introduit un système de modules pour C et C++ afin d'améliorer le temps de compilation. À titre d'exemple, Apple cite le minuscule code source de « Hello world » en C : quatre lignes de code seulement. Pourtant, le fichier d'en-tête nécessaire pour sa compilation est 173 fois plus grand que l'application elle-m...

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  • Photobooth.js : le framework JavaScript permet d'ajouter un système de webcam à un site Web en utilisant HTML5

    Photobooth.js : le framework JavaScript permet d'ajouter un système de webcam à un site Web en utilisant HTML5 Le HTML5, le futur standard du Web vient de révéler une fois de plus l'une de ses nombreuses facettes. Un développeur indépendant a exploité les nouveautés du langage pour mettre au point Photobooth.js, une bibliothèque open source en JavaScript qui permet d'intégrer dans un site Web assez aisément un système de prise de photo par webcam. Photobooth s'appuie sur la méthode getUserMedia du framework audio et vidéo open source WebRTC, qui est actuellement en cours de standardisation par le W3C comme une partie du HTML5. Photobooth.js permet de prendre dire...

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  • Oracle Linux sort en version 6.3 : améliorations du système de fichiers Btrfs, des performances et optimisations du Kernel

    Oracle Linux sort en version 6.3 améliorations du système de fichiers Btrfs, des performances et optimisations du Kernel Oracle a publié récemment la version 6.3 de son système d'exploitation Oracle Linux. Créée à partir du clonage des sources de la distribution Red Hat Enterprise Linux (RHEL), cette mouture contient toutes les améliorations et nouveautés de RHEL 6.3. La plus grande différence entre Oracle Linux 6.3 et RHEL 6.3 est l'utilisation du noyau optimisé 2.6.39, qui dispose de plusieurs améliorations et corrections par rapport à l'original, et l'installation par défaut de « Unbreakable Enterprise Kernel 3.0.16 ». Oracle Linux 6.3 propose également la mise à jour de plusi...

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  • Mozilla lance la bêta de Persona, son système d'authentification centralisée pour le Web qui met fin aux identifiants et mots de passe

    Mozilla lance la bêta de Persona son système d'authentification centralisée pour le Web, qui met fin aux identifiants et mots de passe Mozilla vient de lancer la version beta de « Persona », son nouveau système d'authentification pour le Web. Persona est un moyen d'identification qui élimine les identifiants et mots de passe sur les sites Web, tout en étant sécurisé et facile à utiliser. Le but du projet est de permettre aux utilisateurs de s'identifier sur différents sites sans mot de passe spécifique et sans avoir recours à des services d'authentification centralisée comme Facebook ou OpenID, et aux sites Web de ne plus s'inquiéter sur la sécurité des mots de passe.

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  • Le système de sécurité du Mac App Store déjà cracké, après moins de 24 heures de fonctionnement

    Le système de sécurité du Mac App Store déjà cracké, après moins de 24 heures de fonctionnement Mise à jour du 07.01.2011 par Katleen Lancé depuis à peine moins de vingt quatre heures, la nouvelle boutique d'applications d'Apple a déjà essuyé les plâtres d'internautes malveillants. Des pirates ont profité de plusieurs vulnérabilités repérées dans la plateforme, qui autoriseraient notamment la copie non autorisée. Le Mac Store propose déjà 1000 programmes et a enregistré un million de téléchargements lors de cette première journée d'exploitation. Les affaires se portent donc au mieux, si seulement le système de sécurité du magasin virtuel n'avait pas été cracké. Une première faille dénichée par des hackers conc...

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  • Android 4.3 embarqué dans les prochains smartphones Google Play Edition? Des fuites révèlent que le système sera bientôt disponible

    Android 4.3 embarqué dans les prochains smartphones Google Play Edition ? Des fuites révèlent que le système sera bientôt disponibleBien qu'Android 4.3 n'ait pas été annoncé pendant la Google I/O, la mise à jour du système d'exploitation est susceptible d'être livré avec les éditions Google de HTC One et Samsung Galaxy S4. Les fuites révélées par SamMobile montrent que les Google Play Edition arborent un nouveau fond d'écran par défaut, caractéristique d'une nouvelle version Android. Il s'agit toutefois d'une mise à jour mineure puisque les captures d'écran montrent que le nom de code Jelly Bean serait maintenu.

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  • Apple désactive les plug-ins Java de tous les navigateurs sous Mac OS X via mise à jour du système

    Apple désactive les plug-ins Java de tous les navigateurs Sous Mac OS X via mise à jour du système Apple désactive les plug-ins Java de tous les navigateurs lors de l'installation de la dernière mise à jour de son système d'exploitation Mac OS X. La firme déclare sur le bulletin de mise à jour que cette dernière « désinstalle le plug-in d'applet Java, fourni par Apple, de tous les navigateurs Web ». [IMG]http://idelways.developpez.com/news/images/java-vulnerabilite.jpg[/IMG] Les utilisateurs qui veuillent continuer d'utiliser Java doivent désormais se procurer le plug-in nécessaire auprès d'Oracle. Apple ne fournit pas détails sur l...

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  • USB keyboard not recognized by motherboard with only a legacy PS/2 header

    - by Luis
    I've bought a D945GSEJT Atom motheboard that has three usb ports available and no PS/2 connector, just a PS/2 header. I have a PS/2 keyboard with a PS/2 to USB adapter and connected it to a USB port. I tried all three USB ports. The problem is that the board seems to not recognize my keyboard. None of the keys I press are detected by the system. I've read that maybe I could try to change BIOS USB settings to solve this detection problem. But how can I do it if I can't type anything? Is there any other option other than buying a PS/2 adapter and plug it to the PS/2 header?

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  • Joining tables with composite keys in a legacy system in hibernate

    - by Steve N
    Hi, I'm currently trying to create a pair of Hibernate annotated classes to load (read only) from a pair of tables in a legacy system. The legacy system uses a consistent (if somewhat dated) approach to keying tables. The tables I'm attempting to map are as follows: Customer CustomerAddress -------------------------- ---------------------------- customerNumber:string (pk) customerNumber:string (pk_1) name:string sequenceNumber:int (pk_2) street:string postalCode:string I've approached this by creating a CustomerAddress class like this: @Entity @Table(name="CustomerAddress") @IdClass(CustomerAddressKey.class) public class CustomerAddress { @Id @AttributeOverrides({ @AttributeOverride(name = "customerNumber", column = @Column(name="customerNumber")), @AttributeOverride(name = "sequenceNumber", column = @Column(name="sequenceNumber")) }) private String customerNumber; private int sequenceNumber; private String name; private String postalCode; ... } Where the CustomerAddressKey class is a simple Serializable object with the two key fields. The Customer object is then defined as: @Entity @Table(name = "Customer") public class Customer { private String customerNumber; private List<CustomerAddress> addresses = new ArrayList<CustomerAddress>(); private String name; ... } So, my question is: how do I express the OneToMany relationship on the Customer table?

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  • Legacy exchange MAPI help?

    - by Zenox
    I'm working with some legacy exchange code and I am having trouble finding information about some methods/constants. A google search reveals others using similar code, but with no explanations. Does anyone have any ideas where I can find proper docs? One constant I am looking for is: SYNC_ASSOCIATED.

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  • WCF v.s. legacy ASP.Net Web Services

    - by George2
    Duplicate: although this is a good discussion, this is a duplicate of Web Services — WCF vs. Standard. Please consider adding any new information to the earlier question and closing this one. Could anyone recommend me some documents to describe why WCF is better than legacy ASP.Net web services? I am especially interested in performance and security. Thanks!

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  • Python: Converting legacy string dates to dates

    - by Eric
    We have some legacy string dates that I need to convert to actual dates that can be used to perform some date logic. Converting to a date object isn't a problem if I knew what the format were! That is, some people wrote 'dd month yy', othes 'mon d, yyyy', etc. So, I was wondering if anybody knew of a py module that attempts to guess date formats and rewrites them in a uniform way? Any other suggestions? Thanks! :) Eric

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  • ODBC Proxy for remotely accessing legacy resources?

    - by Winston Fassett
    Our project uses AcuCorp's AcuODBC driver to access a legacy Vision database. The problem is that we only have a 32-bit driver and the installer simply won't run on our 64-bit servers. I need a way to use SSIS to pull data from that system. As far as I can tell, there are 3 options: Set up a whole new SQL Server instance with SSIS and the AcuODBC drivers on a 32-bit VM (costly) Try to hack the 32-bit driver onto our 64-bit server manually (failure prone and unsupported) Set up a 32-bit VM with some sort of "proxy" service that our 64-bit SSIS can use to pull the data. The first option is the least desirable. If you have any suggestions for options 2 or 3, or anything else I haven't thought of, I'd love to hear them.

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  • Legacy Database, Fluent NHibernate, and Testing my mappings

    - by sdanna
    As the post title implies, I have a legacy database (not sure if that matters), I'm using Fluent NHibernate and I'm attempting to test my mappings using the Fluent NHibernate PersistenceSpecification class. My question is really a process one, I want to test these when I build locally in Visual Studio using the built in Unit Testing framework for now. Obviously this implies (I think) that I'm going to need a database. What are some options for getting this into the build? If I use an in memory database does NHibernate or Fluent NHibernate have some some mechanism for sucking the database schema from a target database or maybe the in memory database can do this? Will I need to manually get the schema to feed to an in memory database? Ideally I would like to get this this setup to where the other developers don't really have to think about it other than when they break the build because the tests don't pass.

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