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• Unit Testing.... a data provider ?

  - by TomTom

  Given problem: I like unit tests. I develop connectivity software to external systems that pretty much and often use a C++ library The return of this systems is nonndeterministic. Data is received while running, but making sure it is all correctly interpreted is hard. How can I test this properly? I can run a unit test that does a connect. Sadly, it will then process a life data stream. I can say I run the test for 30 or 60 seconds before disconnecting, but getting code ccoverage is impossible - I simply dont even comeclose to get all code paths EVERY ONCE PER DAY (error code paths are rarely run). I also can not really assert every result. Depending on the time of the day we talk of 20.000 data callbacks per second - all of which are not relly determined good enough to validate each of them for consistency. Mocking? Well, that would leave me testing an empty shell of myself because the code handling the events basically is the to be tested case, and in many cases we talk here of a COMPLEX c level structure - hard to have mocking frameworks that integrate from Csharp to C++ Anyone any idea? I am short on giving up using unit tests for this part of the application.

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• Using CakePHP with GoDaddy IIS 7 IIS7 and Microsoft URL Rewriter

  - by ricky

  Hi, I'm trying to move a CakePHP app from a Windows Apache setup to a GoDaddy shared IIS7 setup. It's been easy to migrate except for the Apache mod_rewrite part -- which obviously wouldn't work in IIS7. I basically have no url rewriting capability, which is crucial for Cake to work. GoDaddy now offers MS URL Rewriter, but they don't offer technical support for it. I haven't seen any blog post that discusses how to do this in detail. I'd really like to avoid third-party software, especially since GoDaddy provides MS URL Rewriter, which ought to be more than sufficient. The mod_rewrite directives that will allow Cake to work on GoDaddy look ridiculously easy (pasted below); can someone help me convert it to a web.config I can use with URL Rewriter? The URL Rewriter manual is really long and complicated. I'd rather not have to read the whole thing if I don't have to. Here's the contents of the apache .htaccess file: <IfModule mod_rewrite.c> RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ /index.php?url=$1 [QSA,L] </IfModule> Here's a link that discusses GoDaddy's limited support for URL Rewriter: http://stackoverflow.com/questions/416727/url-rewriting-under-iis-at-godaddy Many thanks! Rich

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• C: Running Unix configure file in Windows

  - by Shiftbit

  I would like to port a few applications that I use on Linux to Windows. In particular I have been working on wdiff. A program that compares the differences word by word of two files. Currently I have been able to successfully compile the program on windows through Cygwin. However, I would like to run the program natively on Windows similar to the Project: UnixUtils. How would I go about porting unix utilities on a windows environment? My possible guess it to manually create the ./configure file so that I can create a proper makefile. Am I on the right track? Has anyone had experience porting GNU software to windows? Update: I've compiled it on Code::Blocks and I get two errors: wdiff.c|226|error: `SIGPIPE' undeclared (first use in this function) readpipe.c:71: undefined reference to `_pipe' readpipe.c:74: undefined reference to `_fork This is a linux signal that is not supported by windows... equvilancy? wdiff.c|1198|error: `PRODUCT' undeclared (first use in this function)| this is in the configure.in file... hardcode would probably be the fastest solution... Outcome: MSYS took care of the configure problems, however MinGW couldnt solve the posix issues. I attempt to utilize pthreads as recommended by mrjoltcola. However, after several hours I couldnt get it to compile nor link using the provided libraries. I think if this had worked it would have been the solution I was after. Special mention to Michael Madsen for MSYS.

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• Comet and Simultaneous Ajax request

  - by Amitd

  Hi , I am trying to use a COMET solution using ASP.NET . Trouble is i want to implement sending and notification part in the same page. On IE7, whenever i try to send a request ,it just gets queued up. After reading on internet and stackoverflow pages i found that i can only do 2 simultaneous asyn ajax requests per page. So until i close my comet Ajax request,my 2nd request doesnt get completed ,doesnt even go out from the browser. And when i checked with Firefox i just one Ajax comet request running all time..so doesnt that leave me one more ajax request? Also the solution uses IRequiressessionstate for Asynchronous HTTP Handler which i had removed.but still it creates problems on multiple instances of IE7. I had one work around which is stated here http://support.microsoft.com/kb/282402 it means we can increase the request limit from registry by default is 2. By changing "MaxConnectionsPer1_0Server" key in hive "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" we can increase the number of requests. Basically i want to broadcast information to multiple clients connected to a server using Comet and the clients can also send messages to the Server. Broadcasting works but the send request back to server doesnt work. Im using IIS 6 and ASP.NET . Are there any more workarounds or ways to send more requests? References : http://stackoverflow.com/questions/561046/how-many-concurrent-ajax-xmlhttprequest-requests-are-allowed-in-popular-browser http://stackoverflow.com/questions/349381/ajax-php-sessions-and-simultaneous-requests http://stackoverflow.com/questions/2412807/jquery-ajax-request-blocked-by-long-running-ajax-request http://stackoverflow.com/questions/898190/jquery-making-simultaneous-ajax-requests-is-it-possible

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• What is the worst programming language you ever worked with? [closed]

  - by Ludwig Weinzierl

  If you have an interesting story to share, please post an answer, but do not abuse this question for bashing a language. We are programmers, and our primary tool is the programming language we use. While there is a lot of discussion about the best one, I'd like to hear your stories about the worst programming languages you ever worked with and I'd like to know exactly what annoyed you. I'd like to collect this stories partly to avoid common pitfalls while designing a language (especially a DSL) and partly to avoid quirky languages in the future in general. This question is not subjective. If a language supports only single character identifiers (see my own answer) this is bad in a non-debatable way. EDIT Some people have raised concerns that this question attracts trolls. Wading through all your answers made one thing clear. The large majority of answers is appropriate, useful and well written. UPDATE 2009-07-01 19:15 GMT The language overview is now complete, covering 103 different languages from 102 answers. I decided to be lax about what counts as a programming language and included anything reasonable. Thank you David for your comments on this. Here are all programming languages covered so far (alphabetical order, linked with answer, new entries in bold): ABAP, all 20th century languages, all drag and drop languages, all proprietary languages, APF, APL (1), AS400, Authorware, Autohotkey, BancaStar, BASIC, Bourne Shell, Brainfuck, C++, Centura Team Developer, Cobol (1), Cold Fusion, Coldfusion, CRM114, Crystal Syntax, CSS, Dataflex 2.3, DB/c DX, dbase II, DCL, Delphi IDE, Doors DXL, DOS batch (1), Excel Macro language, FileMaker, FOCUS, Forth, FORTRAN, FORTRAN 77, HTML, Illustra web blade, Informix 4th Generation Language, Informix Universal Server web blade, INTERCAL, Java, JavaScript (1), JCL (1), karol, LabTalk, Labview, Lingo, LISP, Logo, LOLCODE, LotusScript, m4, Magic II, Makefiles, MapBasic, MaxScript, Meditech Magic, MEL, mIRC Script, MS Access, MUMPS, Oberon, object extensions to C, Objective-C, OPS5, Oz, Perl (1), PHP, PL/SQL, PowerDynamo, PROGRESS 4GL, prova, PS-FOCUS, Python, Regular Expressions, RPG, RPG II, Scheme, ScriptMaker, sendmail.conf, Smalltalk, Smalltalk , SNOBOL, SpeedScript, Sybase PowerBuilder, Symbian C++, System RPL, TCL, TECO, The Visual Software Environment, Tiny praat, TransCAD, troff, uBasic, VB6 (1), VBScript (1), VDF4, Vimscript, Visual Basic (1), Visual C++, Visual Foxpro, VSE, Webspeed, XSLT The answers covering 80386 assembler, VB6 and VBScript have been removed.

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• [OffTopic] PhD is it worth it?

  - by Zenzen

  So I'll be graduating next year (hopefully) and lately I started thinking about getting a PhD in computer science (to be more precise I was thinking about something related to "distributed systems", don't have any specific topics yet in mind), but is it really worth it? A PhD course here lasts 4 years and is free IF you're doing the "normal one" (which means you have class from monday to friday) OR you have to pay if you want to study on the weekends. So I've been thinking about getting a normal full time job (as a JEE programmer) and doing my PhD during the weekends OR doing the normal PhD course (mon-fri) and getting a part time job as a software dev (the main reason I want a job is simple - I need to eat). That would give me practical working experience and theoretical knowledge+a PhD, but it would also mean working 7days a week from 9 to 5 for 4 years straight (sounds like an overkill). Is it, job wise, really worth getting a PhD? As an employer do you prefer people with PhDs or MScs? This might be kinda important - I'm not from the US or western europe, how are PhDs from other countries (I am graduating one of the best, if not the best, school in my country but it's still a central european country...) seen? Are they useless? I won't hide it - after graduation I am thinking about moving abroad.

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• Enterprise SSO & Identity management / recommendations

  - by Maxim Veksler

  Hello Friends, We've discussed SSO before. I would like to re-enhance the conversation with defined requirements, taking into consideration recent new developments. In the past week I've been doing market research looking for answers to the following key issues: The project should should be: Requirements SSO solution for web applications. Integrates into existing developed products. has Policy based password security (Length, Complexity, Duration and co) Security Policy can be managed using a web interface. Customizable user interface (the password prompt and co. screens). Highly available (99.9%) Scalable. Runs on Red Hat Linux. Nice to have Contains user Groups & Roles. Written in Java. Free Software (open source) solution. None of the solutions came up so far are "killer choice" which leads me to think I will be tooling several projects (OWASP, AcegiSecurity + X??) hence this discussion. We are ISV delivering front-end & backend application suite. The frontend is broken into several modules which should act as autonomous unit, from client point of view he uses the "application" - which leads to this discussion regrading SSO. I would appreciate people sharing their experience & ideas regarding the appropriete solutions. Some solutions are interesting CAS Sun OpenSSO Enterprise JBoss Identity IDM JOSSO Tivoli Access Manager for Enterprise Single Sign-On Or more generally speaking this list Thank you, Maxim.

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• eclipse 3.5.1 (Galileo) with ubuntu 9.10 (Karmic) busted! Can not install maven2 plugin! (Or any oth

  - by Denali

  I see a lot of stuff online related to fixing buttons that can't be pressed, and fixing network issues with proxies. This seems like a different problem to me, related to jem.util.0.0.0 in the case of maven2 or needed libs for other plugins. The setup: Eclipse 3.5.1 (Galileo) installed with apt-get. Ubuntu 9.10 (Karmic Koala) (This is running as a VM, not that is should matter.) General problem description: Maven2 eclipse plugin installation fails. Specifically, I can not install maven2 plugin from the eclipse installation flow using this target site: http://m2eclipse.sonatype.org/sites/m2e/ The maven site is found, installation begins, and then returns this error: Cannot complete the install because one or more required items could not be found. Software being installed: Maven Integration for Eclipse (Required) 0.10.0.20100209-0800\ (org.maven.ide.eclipse.feature.feature.group 0.10.0.20100209-0800) Missing requirement: Maven Integration for Eclipse (Required) 0.10.0.20100209-0800 (org\ .maven.ide.eclipse.feature.feature.group 0.10.0.20100209-0800) requires 'org.eclipse.jem.\ util 0.0.0' but it could not be found Official Ubuntu documentation claims eclipse 3.5.1 support, and recommends using the Synaptic Package Manager, and nothing else about any issues. Does anyone has any insight into this?

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• Storing a digital signature for bookings on a web based system

  - by Duncan

  I have a web based bookings system built for a UK higher education client to allow students to sign out equipment (laptops, camera's etc). It's been in use successfully for a couple of years, in the current workflow equipment is collected and the booking is printed, signed by the student and kept until the equipment is returned. They are emailed a pdf copy of the booking and reminders if equipment is outstanding. Students can login and prebook equipment using their university LDAP credentials, the booking is then authorised by staff for later collection, but can also walk in and have equipment booked out by staff. They would like to remove the signed paper part of the process and replace this with some sort of digital signature. The suggestion was a graphics tablet but with a web based system this would require a local software package and in my view be impractical. My thought is that students would enter their LDAP username and password upon collection of the equipment, verifying their identity and effectively digitally signing the booking. My question is what would be best to store as a signature or whether to simply authenticate the user and use a boolean flag to indicate that this has been done could be deemed sufficient?

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• Excel export displaying '#####...'

  - by Cypher

  I'm trying to export an Excel database into .txt (Tab Delimited), but some of my cells are quite large. When I export into a txt some of the cells are exported as '#######....' which is surprisingly useless. Has this happened to anyone else? Do you know an easy fix? Data from one cell of my column: Accounting, African Studies, Agricultural/Bioresource Engineering, Agricultural Economics, Agricultural Science, Anatomy/Cell Biology, Animal Biology, Animal Science, Anthropology, Applied Zoology, Architecture, Art History, Atmospheric/Oceanic Science, Biochemistry, Biology, Botanical Sciences, Canadian Studies, Chemical Engineering, Chemistry/Bio-Organic/Environmental/Materials,ChurchMusicPerformance, Civil Engineering/Applied Mechanics, Classics, Composition, Computer Engineering,ComputerScience, ContemporaryGerman Studies, Dietetics, Early Music Performance, Earth/Planetary Sciences, East Asian Studies, Economics, Electrical Engineering, English Literature/ Drama/Theatre/Cultural Studies, Entrepreneurship, Environment, Environmental Biology, Finance, Food Science, Foundations of Computing, French Language/Linguistics/Literature/Translation, Geography, Geography/ Urban Systems, German, German Language/Literature/Culture, Hispanic Languages/Literature/Culture,History,Humanistic Studies, Industrial Relations, Information Systems, International Business, International Development Studies, Italian Studies/Medieval/Renaissance, Jazz Performance, Jewish Studies, Keyboard Studies, Kindergarten/Elementary Education, Kindergarten/Elementary Education/Jewish Studies,Kinesiology, Labor/Management Relations, Latin American/Caribbean Studies, Linguistics, Literature/Translation, Management Science, Marketing, Materials Engineering,Mathematics,Mathematics/Statistics,Mechanical Engineering, Microbiology, Microbiology/Immunology, Middle Eastern Studies, Mining Engineering, Music, Music Education, MusicHistory,Music Technology,Music Theory,North American Studies, Nutrition,OperationsManagement,OrganizationalBehavior/Human Resources Management, Performing Arts, Philosophy, Physical Education, Physics, Physiology, Plant Sciences, Political Science, Psychology, Quebec Studies, Religious Studies/Scriptures/Interpretations/World Religions,ResourceConservation,Russian, Science for Teachers,Secondary Education, Secondary Education/Music, Secondary Education/Science, SocialWork, Sociology, Software Engineering, Soil Science, Strategic Management, Teaching of French/English as a Second Language, Theology, Wildlife Biology, Wildlife Resources, Women’s Studies.

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• Odd Infragistics UltraComboEditor data binding non-bug

  - by Richard Dunlap

  Within an Infragistics 8.2 UltraComboEditor, we had the following properties set via C#: DataSource = dataSource; ValueMember = "Measure"; DisplayMember = "Name"; DataBindings.Add("Value", repository, "Measure"); DataBindings["Value"].DataSourceUpdateMode = DataSourceUpdateMode.OnPropertyChanged; where dataSource was an array of objects, each with a property Measure, and repository was an object with a property Measure. (Those strings are actually constructor parameters -- just using explicit strings to simplify the example.) In the course of some refactoring, the name of the property on the objects in the array was changed to BaseEnum (the objects are actually wrapped enumerations, for the curious), but the name of ValueMember above was not changed. And yet, the combo box binding continued to work through initial testing, beta testing, and even after release... until two customers emailed in noting that the combo box was no longer changing the underlying parameter. We were able to dig out the problem by careful study of the source code repository... despite being in the awkward position of not being able to replicate the buggy behavior internally. Two part question: What's happening under the hood that allowed the binding to continue to function, and/or what might be unique about those two users that caused the binding to (correctly) fail? (O/S version isn't alone the answer, and we get the unexpectedly functioning binding on machines that have never had a version of the software before, so we're not looking at rogue binaries). Are there tools that might have been able to warn us about the misbind, even if something was cleaning up behind?

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• File extensions and MIME Types in .NET

  - by Marc Climent

  I want to get a MIME Content-Type from a given extension (preferably without accessing the physical file). I have seen some questions about this and the methods described to perform this can be resumed in: Use registry information. Use urlmon.dll's FindMimeFromData. Use IIS information. Roll your own MIME mapping function. Based on this table, for example. I've been using no.1 for some time but I realized that the information provided by the registry is not consistent and depends on the software installed on the machine. Some extensions, like .zip don't use to have a Content-Type specified. Solution no.2 forces me to have the file on disk in order to read the first bytes, which is something slow but may get good results. The third method is based on Directory Services and all that stuff, which is something I don't like much because I have to add COM references and I'm not sure it's consistent between IIS6 and IIS7. Also, I don't know the performance of this method. Finally, I didn't want to use my own table but at the end seems the best option if I want a decent performance and consistency of the results between platforms (even Mono). Do you think there's a better option than using my own table or one of other described methods are better? What's your experience?

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• Can't ssh to ec2 permission denied (publickey)

  - by Chris Barnes

  I have existing instances running and I can connect to them fine. Even if I start a new instance from one of my saved ami's I can connect to it fine but any new public or community ami (I've tried 2 offical Ubuntu ami's and 1 Fedora quickstart ami) I get permission denied (publickey). The permissions are good on my key file. I've also tried creating a new keyfile. My ec2 firewall rules are good, I've also tried creating a new group. This is the error I'm getting. ssh -v -i ec2-keypair [email protected] OpenSSH_5.2p1, OpenSSL 0.9.7l 28 Sep 2006 debug1: Reading configuration data /Users/chris/.ssh/config debug1: Reading configuration data /etc/ssh_config debug1: Connecting to ec2-xxx.xxx.xxx.xxx.compute-1.amazonaws.com [xxx.xxx.xxx.xxx] port 22. debug1: Connection established. debug1: identity file ec2-keypair type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-6ubuntu2 debug1: match: OpenSSH_5.1p1 Debian-6ubuntu2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'ec2-xxx.xxx.xxx.xxx.compute-1.amazonaws.com' is known and matches the RSA host key. debug1: Found key in /Users/chris/.ssh/known_hosts:13 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Trying private key: ec2-keypair debug1: read PEM private key done: type RSA debug1: Authentications that can continue: publickey debug1: No more authentication methods to try. Permission denied (publickey).

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• Activate COM object using website doesn't work in Windows 2003 server

  - by Tarun

  I have been trying really hard to activate and launch a COM object using an ASP.NET web application. The aspx website has a code-behind file that has a reference to this COM object (which is an actual application - a CAD software). When required, the VB code creates (or launches) the application. The complete set-up works in a Win-XP (32-bit) environment both under debugging using visual studio and when the website is accessed by an outside user (through IIS server in XP). But the same application doesn't get activated when it is hosted onto the Win-2003 (32-bit) IIS server. I get "Object reference not set to an instance of an object" error. The way I have setup in Win-XP was to grant ASP user and Internet guest user permissions to the COM object in the DCOM Config and since the windows firewall is enabled, I add the exe file (associated with the COM object) to the exception list. For the case of Win-2003 server, I add the Network Service permission to the COM object. But the setup doesn't seem to work at all. I am not sure what I am missing and how to get the application to launch. Any help will be greatly appreciated.

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• Ericsson f3507g WWAN (3G Broadband) and AT commands

  - by JD

  I have a lenovo x200t tablet with WWAN built into it. I'm trying to connect to the internet using AT commands and a C# program which I am making so that the program can connect to the net and upload information on demand. I don't want to use Lenovo's "Access Connections" as it is too complicated for the end user. So far I have been able to use terminal to turn the card on and off, ring landlines and send SMS messages. However I can't seem to access the internet using it. I could access the net through it before I removed "Access Connections" software/bloatware. The commands I am using to try and access the net are: Connect on COM7 to the modem Send initialisation string "AT+CFUN=1" Send AT*ENAP=1,1 as suggested here (http://www.thinkwiki.org/wiki/Ericsson%5FF3507g%5FMobile%5FBroadband%5FModule) Windows says it is "Identifying" the network and a yellow exclamation mark appears on the networking icon in the task bar, but the connection fails and drops off. An IP is assigned to the "Local Area Connection 2" of 169.254.1.192 with a subnet of 255.255.0.0 - no gateway or DNS. Definately no net connection... Anyone got any ideas?

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• While porting a windows application to web, is it better to stick to conventional web technologies o

  - by Kabeer

  Hello. The web based application I am working on currently is a port from a windows application. This application is very data intensive. There are scores of modules and each of these modules have number of forms (data entry screens) and reports whereas the forms have many many fields and likewise the reports. I have been trying to identify the most suitable architecture for the presentation tier. There are many functions that are not very easily portable, for example printing (this too is very complex). For most of the others, I am planning to us "Ext JS" library which looks like capable of handling about 70% of complexity out of the box while for the remaining I would be custom coding or extending Ext JS. Having said that (sorry for being so descriptive), I wonder, if this is an Intranet application, why not port the entire application to SilverLight? While I am good at .Net, I'm somewhat alien to SilverLight. Considering I know my target audience and that the software will be used per seat license, would it be better to ride on SilverLight or is it better to stick to conventional web (XHTML, JS, CSS, etc)? Further, I have to support multiple devices in future and considering that SilverLight plug-ins for many devices are yet not out, would it be a risk?

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• NHibernate Generators

  - by Dan

  What is the best tool for generating Entity Class and/or hbm files and/or sql script for NHibernate. This list below is from http://www.hibernate.org/365.html, which is the best any why? Moregen Free, Open Source (GPL) O/R Generator that can merge into existing Visual Studio Projects. Also merges changes to generated classes. NConstruct Lite Free tool for generating NHibernate O/R mapping source code. Different databases support (Microsoft SQL Server, Oracle, Access). GENNIT NHibernate Code Generator Free/Commercial Web 2.0 code generation of NHibernate code using WYSIWYG online UML designer. GenWise Studio with NHibernate Template Commercial product; Imports your existing database and generates all XML and Classes, including factories. It can also generate a asp.net web-application for your NHibernate BO-Layer automatically. HQL Analyzer and hbm.xml GUI Editor ObjectMapper by Mats Helander is a mapping GUI with NHibernate support MyGeneration is a template-based code generator GUI. Its template library includes templates for generating mapping files and classes from a database. AndroMDA is an open-source code generation framework that uses Model Driven Architecture (MDA) to transform UML models into deployable components. It supports generation of data access layers that use NHibernate as their persistence framework. CodeSmith Template for NH NHibernate Helper Kit is a VS2005 add-in to generate classes and mapping files. NConstruct - Intelligent Software Factory Commercial product; Full .NET C# source code generation for all tiers of the information system trough simple wizard procedure. O/R mapping based on NHibernate. For both WinForms and ASP.NET 2.0.

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• Are there code signing certificates cheaper than US$99 per year? [closed]

  - by gerryLowry

  K Software discounts Comodo code signing certificates to US$99 per year. In the past, I've seen Commodo code signing certificates for US$80. I'm excluding CAcert which AFAIK are FREE but are not covered by browsers like Internet Explorer AFAIK. QUESTION: What is the best price per year for a code signing certificate? Thank you ~~ gerry (lowry) Edit: **THIS SHOULD NOT HAVE BEEN CLOSED** from the FAQ: http://stackoverflow.com/faq ---------------------------- What kind of questions can I ask here? Programming questions, of course! As long as your question is: * detailed and specific <====== YES! * written clearly and simply <====== YES! * of interest to other programmers <====== YES! I've been programming for over 40 years. http://gerrylowryprogrammer.com/ I've taught computer programming at the community college level. I'm a Star level contributer to forums.asp.net. http://forums.asp.net/members/gerrylowry.aspx IMO, I've a very good idea what is of interest to other programmers. MORE INFORMATION http://en.wikipedia.org/wiki/Code_signing http://msdn.microsoft.com/en-us/library/ms537361%28VS.85%29.aspx also: via Google: code signing Ensuring the integrity of code and executables that one distributes is just as much about programming as is knowing how to flip bits in assembler, use delegates in C#, and use the BDD context/specification still of "test first testing".

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• Amazon EC2 RSA key stopped authenticating - Permission denied (publickey)

  - by shedd

  Authenticating to our Ubuntu EC2 instance worked fine until a little while ago. All of a sudden, the key is being rejected. When we create a new instance with the keypair, we're able to connect to the instance perfectly, so it appears to be an issue with the existing instance. Port 22 is open. Any suggestions on what to look at from a configuration standpoint so we can fix this? Any thoughts on how we can get into the box? Here is the SSH debug output. Is there anything obviously amiss? Thanks so much! $ ssh -v -i ~/zzz.pem ubuntu@###.###.###.### OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009 debug1: Reading configuration data /etc/ssh_config debug1: Connecting to ###.###.###.### [###.###.###.###] port 22. debug1: Connection established. debug1: identity file zzz.pem type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-6ubuntu2 debug1: match: OpenSSH_5.1p1 Debian-6ubuntu2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host '###.###.###.###' is known and matches the RSA host key. debug1: Found key in /zzz/.ssh/known_hosts:18 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering public key: /zzz/.ssh/id_rsa debug1: Authentications that can continue: publickey debug1: Offering public key: zzz.txt debug1: Authentications that can continue: publickey debug1: Trying private key: zzz.pem debug1: read PEM private key done: type RSA debug1: Authentications that can continue: publickey debug1: No more authentication methods to try. Permission denied (publickey).

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• Subversive Connector Discovery error

  - by Zac

  Trying to install Subversive for the first time. Successfully installed Subversive "Team Provider" via the Available Sites dialog in Help Install New Software. Added a site that points to the Helios Update Site. Restarted Eclipse and tried to open the SVN Repository Browser and it automatically launched a Subversive Connector Discovery dialog, presenting me with 6 or 7 connectors to choose from. I've tried every single one, and they all fail, stating that an "error occured" and that I need to check the "error log" (Eclipse error log?) for details. I then exited the dialog and noticed that I can now view all the SVN-related perspective panes. (1) Was it alright for me to cancel that Connector Discovery process, or will I need that to create/edit repositories locally? If I need it, what was going wrong and does anyone have any ideas for how to get it working? (2) I'm trying to undertand the SVN Repositories feature for creating a new repository. How do I point it to my local SVN server instance? The default is to query me for a URL that I assume I would point to one of those "publicly available" repos.... which I don't want! Thanks for any and all help here!

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• Fogbugz search broken

  - by apollodude217

  The Search feature on our Fogbugz server is broken. It can look up case numbers just fine, but when I search for text, I get the following: FogBugz Internal Error An internal error occurred in FogBugz. If you are unsure of how to fix this error, and you have made no changes to the source code of FogBugz, please report this error to Fog Creek Software by clicking "Submit." File: /FogBugz/list.asp Line: 1465 Error: nErr = 100 nErr = -2146232832 Unable to find the specified file: _254m.fnm at FogUtil.Search.Store.Directory.GetFile(String name) at FogUtil.Search.Store.Directory.OpenInput(String name) at Lucene.Net.Index.FieldInfos..ctor(Directory d, String name) at Lucene.Net.Index.SegmentReader.Initialize(SegmentInfo si) at Lucene.Net.Index.SegmentReader.Get(Directory dir, SegmentInfo si, SegmentInfos sis, Boolean closeDir, Boolean ownDir) at Lucene.Net.Index.SegmentReader.Get(SegmentInfo si) at Lucene.Net.Index.IndexReader.AnonymousClassWith.DoBody() at Lucene.Net.Store.Lock.With.Run() at Lucene.Net.Index.IndexReader.Open(Directory directory, Boolean closeDirectory) at Lucene.Net.Index.IndexReader.Open(Directory directory) at FogUtil.Search.Index.LoadReadonlyReader() at FogUtil.Search.Index.LoadSearcher() at FogUtil.Search.QueryGenerator.Execute(Object querytokens, Boolean fMSSQL, Boolean fMySQL, String sFilterKey, String sFilterValues) at FogUtil.Search.Index.Execute(Object query, Boolean fMSSQL, Boolean fMySQL, String sFilterKey, String sFilterValues) Browser: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 GTB6 (.NET CLR 3.5.30729) Number: 0x800A0064 Category: Microsoft VBScript runtime Column: -1 OS Version: Microsoft Windows Server 2003 5.2.3790 Database: Microsoft SQL Server CLR Versions: 1033|v1.0.3705|v1.1.4322|v2.0.50727|v3.0 QueryString: pre=preMultiSearch&pg=pgList&pgBack=pgSearch&search=2&searchFor=asdf&sLastSearchString=&sLastSearchStringJSArgs=%27%27%2C%27%27%2C%27%27 URL: /FogBugz/default.asp Content Length: 0 Local Addr: 172.22.22.15 Remote Addr: 172.16.55.25 Time: 4/27/2010 2:45:39 PM Does anyone know what this problem is or how to fix it?

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• Why is "Fixup" needed for Persistence Ignorant POCO's in EF 4?

  - by Eric J.

  One of the much-anticipated features of Entity Framework 4 is the ability to use POCO (Plain Old CLR Objects) in a Persistence Ignorant manner (i.e. they don't "know" that they are being persisted with Entity Framework vs. some other mechanism). I'm trying to wrap my head around why it's necessary to perform association fixups and use FixupCollection in my "plain" business object. That requirement seems to imply that the business object can't be completely ignorant of the persistence mechanism after all (in fact the word "fixup" sounds like something needs to be fixed/altered to work with the chosen persistence mechanism). Specifically I'm referring to the Association Fixup region that's generated by the ADO.NET POCO Entity Generator, e.g.: #region Association Fixup private void FixupImportFile(ImportFile previousValue) { if (previousValue != null && previousValue.Participants.Contains(this)) { previousValue.Participants.Remove(this); } if (ImportFile != null) { if (!ImportFile.Participants.Contains(this)) { ImportFile.Participants.Add(this); } if (ImportFileId != ImportFile.Id) { ImportFileId = ImportFile.Id; } } } #endregion as well as the use of FixupCollection. Other common persistence-ignorant ORMs don't have similar restrictions. Is this due to fundamental design decisions in EF? Is some level of non-ignorance here to stay even in later versions of EF? Is there a clever way to hide this persistence dependency from the POCO developer? How does this work out in practice, end-to-end? For example, I understand support was only recently added for ObservableCollection (which is needed for Silverlight and WPF). Are there gotchas in other software layers from the design requirements of EF-compatible POCO objects?

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• Installing SQLServer 2005 on Windows 7 64bit

  - by Mostafa

  Hi , It's 3 days I'm trying to install SqlServer 2005 under Windows 7 64 bit on my machine . First let me tell you what I've done and what I've got till now . 1-I Installed Windows 7 64 Bit on my computer 2-I tried to install SQl Server 2005 "Developer Edition" 2.1 But in "System Configuration Check" Page i recieved 2 warning , One for "IIS Feature Requirement" and another for "ASP.NET Version Registration Rquired" . 2.1.1 . I installed "Internet Information Services" from "Turn Windows features on or off" section in control panel 2.1.2 I Enabled reporting service 32 bit from "Inetpub= AdminScripts = adsutil.vbs 2.2 At this stage There was no waring in System Configuration Check 3- So I installed SQl Server 2005 Developer Edition By all default settings 4- I installed Sql Server 2005 Service Pack 3 64 bit Now when when i run "Management Studio" There is no name in "Server name" section . I typed my Computer name Or "." and i got this Error : A network -related instance-specific error occurred while establishinga connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (Provider: Named Pipes Provider , error :40 - Could not open a connection to SQL Server ) ( Microsoft SQL Server , Error :2) . I googled some for this Error and some people said follow this instruction: Startsql server 2005Configuration toolsSql Server Surface Configuration AreaSurface Area Configuration for services and Connections But i got this Error : No SQl SErver 2005 Components were found on the specified computer . Either no components are installed , or you are not a administrator on this computer (SQLSAC) I'm really tired because of that , and i don't know what's wrong with this . Some more information : I have no additonal software on my computer , like Antivirus or Proxy I tried all step with "Standard Edition" either , but no difference My user is Administrator I tried more than 5 times all those steps including re-installing Windows 7 . Please help me , I'm losing all my hair

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• Android USB driver for Xperia X10a

  - by mlohbihler

  I've been trying for a couple hours now, and have hit all of the sites Google found, but i cannot get the Android USB driver on my XP box to talk to my new Xperia X10a. I found the lines that some kind soul posted, and has been syndicated repeated, but they don't work for me. The idea is to add them to the Google.NTx86 and Google.NTamd64 sections of the android_winusb.inf file: ;Xperia X10 %SingleAdbInterface% = USB_Install, USB\VID_0FCE&PID_E12E %CompositeAdbInterface% = USB_Install, USB\VID_0FCE&PID_E12E&MI_01 I tried a number of variations of the first line, including "Sony Ericsson X10a", which is what XP shows me in both the "found new hardware" wizard and the device manager, but no luck. The result is always the same. Here are my steps: Plug in the phone via USB "found new hardware wizard" appears Choose "No, not this time" and "next" Choose "Install from a list or specific location..." and "next" Choose "Search for best driver...", check "Include this location...", and browse for the "usb_driver" folder in the Android SDK installation. Click "next" It does a quick search and then says "Cannot install this hardware", "... because the wizard cannot find the necessary software". I've tried more things that i can recall now, including deleting registry entries, but it just won't work. Any help would be appreciated at this point. Regards, m@

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• Search SharePoint ULS Logs with Windows

  - by djeeg

  Hi, I have a standard/new Windows 2008 R2 install with SharePoint 2010 and am looking for a SharePoint expectation that occurred sometime during the last week. So I open windows explorer, then go to the logs directory (C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\LOGS). In the toolbar I can enter some search text (exception) or i can Ctrl-F which puts my cursor in the same search box. First it searches the filenames, comes back with no results, and then i click File Contents. And it comes back with still no results. Now I think, maybe there are no errors, so i search for something that I know is in the log (w3wp), still no results. In previous versions of windows, i could usually fix this by making *.log files read as text. But apparently (http://technet.microsoft.com/en-us/library/cc725753(WS.10).aspx) *.log files should already be read as text. Any idea how to make the search, really search log files. I would prefer a solution that did not involve installing any 3rd party software (eg like ULSViewer), but registry/powershell settings are okay.

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