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  • Most simple way to do holiday calculation?

    - by brainfrog
    I want to make a little free calendar program to help me and others calculate how much time we have got left in a project. I mean real working time, not just time. Time in a raw form is not saying much. Typically when my boss tells me that I have time until 05-05-2011 it doesn't tell me really how much time I have to do my job. You know...so many things stop me from work: A) beeing at home, not at work (so called "free time" or "spare time"). That is in my case I work exactly 8 hours a day and then the cleaning ladies throw me out of the office with their incredible loud industrial vacuum cleaners every evening (my boss accepts that as an excuse to go home in time, regularly). B) weekends, or more precisely saturdays and sundays C) official holiday rescuing me from having to go to work. what I want to do is make a little utility which tells me how many working hours I really have in a given time period. The first two things A and B are pretty easy to implement. But the last thing C scares my pants off. Holidays. OOOHHH man. You know what that means. Chaos. Pure chaos. The huge question is: HOW TO CALCULATE HOLIDAYS?! Since I want my program to be useful for anyone anywhere in the world, I can't just hardcode all holidays for my little town. So which options do I have? I) I could hand-craft downloadable lists of holidays. Users search them within the application and download them from an webserver. Or I ship all of them in the package. But I would get very, very old if I tried that by myself for every country, state and town. II) I make an initial data sheet with holidays for my town, and don't care about the rest. However, I make that sheet with an how-to public, so that everyone who feels like beeing very nice can provide holiday data for his country / region / whatever. Those are made public on a webserver and everyone can get the data packages he/she needs for the app. III) ? I care a lot about usability. I don't want to make an ugly linux hack style hard to use app that only computer freaks can use. So you need to tell me more about holiday science. I was never really clever at this. I assume every single country in the world has it's own set of holidays. In every country there may be several states. For example the US has some, and Germany has also some states. Holidays vary from state to state. But I know from an good programmer he told me never assume anything. So the questions about holiday science are: Which categories do I need to make holiday-data-packs searchable? A guy from India should find quickly his holiday data pack, and a guy from Sillicon Valley should find his pack as equally fast. It makes most sense to me to filter for COUNTRY STATE WHATEVER. Like a drill-down-search. Did I miss something? What would be the best data format to hold holiday information? A holiday has a start and end date and a name. That should be enough. Would I put all this stuff in thousands of XML files? How would you go about this? Any hint / help is highly welcome! Thanks to everyone!

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  • Image displays when clicked with multiple radio button groups

    - by Jean
    I'm creating a form that has seven different selection groups, most with radio buttons (ie: buns, cheese), a couple with check boxes (toppings). I need jQuery to differentiate the groups and display images when clicked. The value can't be part of the code as I use it as part of the php form in the next page. <html> <head> <script src="js/jquery-1.6.1.min.js" type="text/javascript"></script> </head> <body> <div id="myRadioGroup"> <input type="radio" name="cars" value="American" />Yellow American<br /> <input type="radio" name="cars" value="Swiss" />Jarlsberg Swiss<br /> <input type="radio" name="cars" value="Blue" />Blue<br /> <input type="radio" name="cars" value="Cheddar" />Aged Cheddar<br /> <div id="American" class="desc"><img class="item" src="images/american-cheese-slice.png"></div> <div id="Swiss" class="desc"><img class="item" src="images/swisscheese.png"></div> <div id="Blue" class="desc"><img class="item" src="images/bluecheese.png"></div> <div id="Cheddar" class="desc"><img class="item" src="images/agedcheddar.png"></div> </div> <div id="myBunGroup"> <input type="radio" name="buns" value="Whole Wheat" />Whole Wheat<br /> <input type="radio" name="buns" value="Classic" />Classic<br /> <input type="radio" name="buns" value="Gluten Free" />Gluten Free<br /> <input type="radio" name="buns" value="Wrap" />Wrap<br /> <div id="WholeWheat" class="desc"><img class="item" src="images/wholewheat.png"></div> <div id="Classic" class="desc"><img class="item" src="images/classic.png"></div> <div id="GlutenFree" class="desc"><img class="item" src="images/gf-buns.png"></div> <div id="Wrap" class="desc"><img class="item" src="images/tortilla.png"></div> </div> <div id="myToppingGroup"> </div> <!-- http://stackoverflow.com/questions/5940963/jquery-show-and-hide-divs-based-on-radio-button-click --> <script> $(document).ready(function() { $(".item").hide(); $("input[name$="['cars', 'buns']"]").click(function() { var test = $(this).val(); $(".item").hide(); $("#" + test).show(); }); }); </script> </body> </html>

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  • Delphi - Why is my global variable "inacessible" when i debug

    - by Antoine Lpy
    I'm building an application that contains around 30 Forms. I need to manage sessions, so I would like to have a global LoggedInUser variable accessible from all forms. I read "David Heffernan"'s post about global variables, and how to avoid them but I thought it would be easier to have a global User variable rather than 30 forms having their own User variable. So i have a unit : GlobalVars unit GlobalVars; interface uses User; // I defined my TUser class in a unit called User var LoggedInUser: TUser; implementation initialization LoggedInUser:= TUser.Create; finalization LoggedInUser.Free; end. Then in my LoginForm's LoginBtnClick procedure I do : unit FormLogin; interface uses [...],User; type TForm1 = class(TForm) [...] procedure LoginBtnClick(Sender: TObject); private { Déclarations privées } public end; var Form1: TForm1; AureliusConnection : IDBConnection; implementation {$R *.fmx} uses [...]GlobalVars; procedure TForm1.LoginBtnClick(Sender: TObject); var Manager : TObjectManager; MyCriteria: TCriteria<TUser>; u : TUser; begin Manager := TObjectManageR.Create(AureliusConnection); MyCriteria :=Manager.Find<TUtilisateur> .Add(TExpression.Eq('login',LoginEdit.Text)) .Add(TExpression.Eq('password',PasswordEdit.Text)); u := MyCriteria.UniqueResult; if u = nil then MessageDlg('Login ou mot de passe incorrect',TMsgDlgType.mtError,[TMsgDlgBtn.mbOK],0) else begin LoggedInUser:=u; //Here I assign my local User data to my global User variable Form1.Destroy; A00Form.visible:=true; end; Manager.Free; end; Then in another form I would like to access this LoggedInUser object in the Menu1BtnClick procedure : Unit C01_Deviations; interface uses System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants, FMX.Types, FMX.Graphics, FMX.Controls, FMX.Forms, FMX.Dialogs, FMX.StdCtrls, FMX.ListView.Types, FMX.ListView, FMX.Objects, FMX.Layouts, FMX.Edit, FMX.Ani; type TC01Form = class(TForm) [...] Menu1Btn: TButton; [...] procedure Menu1BtnClick(Sender: TObject); private { Déclarations privées } public { Déclarations publiques } end; var C01Form: TC01Form; implementation uses [...]User,GlobalVars; {$R *.fmx} procedure TC01Form.Menu1BtnClick(Sender: TObject); var Assoc : TUtilisateur_FonctionManagement; ValidationOK : Boolean; util : TUser; begin ValidationOK := False; util := GlobalVars.LoggedInUser; // Here i created a local user variable for debug purposes as I thought it would permit me to see the user data. But i get "Inaccessible Value" as its value util.Nom:='test'; for Assoc in util.FonctionManagement do // Here is were my initial " access violation" error occurs begin if Assoc.FonctionManagement.Libelle = 'Reponsable équipe HACCP' then begin ValidationOK := True; break; end; end; [...] end; When I debug I see "Inaccessible Value" in the value column of my user. Do you have any idea why ? I tried to put an integer in this GlobalVar unit, and i was able to set its value from my login form and read it from my other form.. I guess I could store the user's id, which is an integer, and then retrieve the user from the database using its id. But it seems really unefficient.

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  • Should we develop a custom membership provider in this case?

    - by Allen
    I'll be adding a bounty to this, probably 200, more if you guys think its appropriate. I wont accept an answer until I can add a bounty so feel free to go ahead and answer now Summary Long story short, we've been tasked with gutting the authentication and authorization parts of a fairly old and bloated asp.net application that previously had all of these components written from scratch. Since our application isn't a typical one, and none of us have experience in asp.net's built in membership provider stuff, we're not sure if we should roll our own authentication and authorization again or if we should try to work within the asp.net membership provider mindset and develop our own membership provider. Our Application We have a fairly old asp.net application that gets installed at customer locations to service clients on a LAN. Admins create users (users do not sign up) and depending on the install, we may have the software integrated with LDAP. Currently, the LDAP integration bulk-imports the users to our database and when they login, it authenticates against LDAP so we dont have to manage their passwords. Nothing amazing there. Admins can assign users to 1 group and they can change the authorization of that group to manage access to various parts of the software. Groups are maintained by Admins (web based UI) and as said earlier, granted / denied permissions to certain functionality within the application. All this was completely written from the ground up without using any of the built in .net authorization or authentication. We literally have IsLoggedIn() methods that check for login and redirect to our login page if they aren't. Our Rewrite We've been tasked to integrate more tightly with LDAP, they want us to tie groups in our application to groups (or whatever types of containers that LDAP uses) in LDAP so that when a customer opt's to use our LDAP integration, they dont have to manage their users in LDAP AND in our application. The new way, they will simply create users in LDAP, add them to Groups in LDAP and our application will see that they belong to the appropriate LDAP group and authenticate and authorize them. In addition, we've been granted the go ahead to completely rip out the User authentication and authorization code and completely re-do it. Our Problem The problem is that none of us have any experience with asp.net membership provider functionality. The little bit of exposure I have to it makes me worry that it was not intended to be used for an application such as ours. Though, developing our own ASP.NET Membership Provider and Role Manager sounds like it would be a great experience and most likely the appropriate thing to do. Basically, I'm looking for advice, should we be using the ASP.NET Membership provider & Role Management API or should we continue to roll our own? I know this decision will be influenced by our requirements so I'm going over them below Our Requirements Just a quick n dirty list Maintain the ability to have a db of users and authenticate them and give admins (only, not users) the ability to CRUD users Allow the site to integrate with LDAP, when this is chosen, they don't want any users stored in the DB, only the relationship between Groups as they exist in our app / db and the Groups/Containers as they exist in LDAP. .net 3.5 is being used (mix of asp.net webforms and asp.net mvc) Has to work in ASP.NET and ASP.NET MVC (shouldn't be a problem I'm guessing) This can't be user centric, administrators need to be the only ones that CRUD (or import via ldap) users and groups We have to be able to Auth via LDAP when its configured to do so I always try to monitor my questions closely so feel free to ask for more info. Also, as a general summary of what I'm looking for in an answer is just. "You should/shouldn't use xyz, here's why". Links regarding asp.net membership provider and role management stuff are very welcome, most of the stuff I'm finding is 5+ years old. Edit: Added some stuff to "Our Rewrite"

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  • new and delete operator overloading

    - by Angus
    I am writing a simple program to understand the new and delete operator overloading. How is the size parameter passed into the new operator? For reference, here is my code: #include<iostream> #include<stdlib.h> #include<malloc.h> using namespace std; class loc{ private: int longitude,latitude; public: loc(){ longitude = latitude = 0; } loc(int lg,int lt){ longitude -= lg; latitude -= lt; } void show(){ cout << "longitude" << endl; cout << "latitude" << endl; } void* operator new(size_t size); void operator delete(void* p); void* operator new[](size_t size); void operator delete[](void* p); }; void* loc :: operator new(size_t size){ void* p; cout << "In overloaded new" << endl; p = malloc(size); cout << "size :" << size << endl; if(!p){ bad_alloc ba; throw ba; } return p; } void loc :: operator delete(void* p){ cout << "In delete operator" << endl; free(p); } void* loc :: operator new[](size_t size){ void* p; cout << "In overloaded new[]" << endl; p = malloc(size); cout << "size :" << size << endl; if(!p){ bad_alloc ba; throw ba; } return p; } void loc :: operator delete[](void* p){ cout << "In delete operator - array" << endl; free(p); } int main(){ loc *p1,*p2; int i; cout << "sizeof(loc)" << sizeof(loc) << endl; try{ p1 = new loc(10,20); } catch (bad_alloc ba){ cout << "Allocation error for p1" << endl; return 1; } try{ p2 = new loc[10]; } catch(bad_alloc ba){ cout << "Allocation error for p2" << endl; return 1; } p1->show(); for(i = 0;i < 10;i++){ p2[i].show(); } delete p1; delete[] p2; return 0; }

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  • Getting timing consistency in Linux

    - by Jim Hunziker
    I can't seem to get a simple program (with lots of memory access) to achieve consistent timing in Linux. I'm using a 2.6 kernel, and the program is being run on a dual-core processor with realtime priority. I'm trying to disable cache effects by declaring the memory arrays as volatile. Below are the results and the program. What are some possible sources of the outliers? Results: Number of trials: 100 Range: 0.021732s to 0.085596s Average Time: 0.058094s Standard Deviation: 0.006944s Extreme Outliers (2 SDs away from mean): 7 Average Time, excluding extreme outliers: 0.059273s Program: #include <stdio.h> #include <stdlib.h> #include <math.h> #include <sched.h> #include <sys/time.h> #define NUM_POINTS 5000000 #define REPS 100 unsigned long long getTimestamp() { unsigned long long usecCount; struct timeval timeVal; gettimeofday(&timeVal, 0); usecCount = timeVal.tv_sec * (unsigned long long) 1000000; usecCount += timeVal.tv_usec; return (usecCount); } double convertTimestampToSecs(unsigned long long timestamp) { return (timestamp / (double) 1000000); } int main(int argc, char* argv[]) { unsigned long long start, stop; double times[REPS]; double sum = 0; double scale, avg, newavg, median; double stddev = 0; double maxval = -1.0, minval = 1000000.0; int i, j, freq, count; int outliers = 0; struct sched_param sparam; sched_getparam(getpid(), &sparam); sparam.sched_priority = sched_get_priority_max(SCHED_FIFO); sched_setscheduler(getpid(), SCHED_FIFO, &sparam); volatile float* data; volatile float* results; data = calloc(NUM_POINTS, sizeof(float)); results = calloc(NUM_POINTS, sizeof(float)); for (i = 0; i < REPS; ++i) { start = getTimestamp(); for (j = 0; j < NUM_POINTS; ++j) { results[j] = data[j]; } stop = getTimestamp(); times[i] = convertTimestampToSecs(stop-start); } free(data); free(results); for (i = 0; i < REPS; i++) { sum += times[i]; if (times[i] > maxval) maxval = times[i]; if (times[i] < minval) minval = times[i]; } avg = sum/REPS; for (i = 0; i < REPS; i++) stddev += (times[i] - avg)*(times[i] - avg); stddev /= REPS; stddev = sqrt(stddev); for (i = 0; i < REPS; i++) { if (times[i] > avg + 2*stddev || times[i] < avg - 2*stddev) { sum -= times[i]; outliers++; } } newavg = sum/(REPS-outliers); printf("Number of trials: %d\n", REPS); printf("Range: %fs to %fs\n", minval, maxval); printf("Average Time: %fs\n", avg); printf("Standard Deviation: %fs\n", stddev); printf("Extreme Outliers (2 SDs away from mean): %d\n", outliers); printf("Average Time, excluding extreme outliers: %fs\n", newavg); return 0; }

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  • C++/msvc6 application crashes due to heap corruption, any hints?

    - by David Alfonso
    Hello all, let me say first that I'm writing this question after months of trying to find out the root of a crash happening in our application. I'll try to detail as much as possible what I've already found out about it. About the application It runs on Windows XP Professional SP2. It's built with Microsoft Visual C++ 6.0 with Service Pack 6. It's MFC based. It uses several external dlls (e.g. Xerces, ZLib or ACE). It has high performance requirements. It does a lot of network and hard disk I/O, but it's also cpu intensive. It has an exception handling mechanism which generates a minidump when an unhandled exception occurs. Facts about the crash It only happens on multiprocessor/multicore machines and under heavy loads of work. It happens at random (neither we nor our client have found a pattern yet). We cannot reproduce the crash on our testing lab. It only happens on some production systems (but always in multicore machines) It always ends up crashing at the same point, although the complete stack is not always the same. Let me add the stack of the crashing thread (obtained using WinDbg, sorry we don't have symbols) ChildEBP RetAddr Args to Child WARNING: Stack unwind information not available. Following frames may be wrong. 030af6c8 7c9206eb 77bfc3c9 01a80000 00224bc3 MyApplication+0x2a85b9 030af960 7c91e9c0 7c92901b 00000ab4 00000000 ntdll!RtlAllocateHeap+0xeac (FPO: [Non-Fpo]) 030af98c 7c9205c8 00000001 00000000 00000000 ntdll!ZwWaitForSingleObject+0xc (FPO: [3,0,0]) 030af9c0 7c920551 01a80898 7c92056d 313adfb0 ntdll!RtlpFreeToHeapLookaside+0x22 (FPO: [2,0,4]) 030afa8c 4ba3ae96 000307da 00130005 00040012 ntdll!RtlFreeHeap+0x1e9 (FPO: [Non-Fpo]) 030afacc 77bfc2e3 0214e384 3087c8d8 02151030 0x4ba3ae96 030afb00 7c91e306 7c80bfc1 00000948 00000001 msvcrt!free+0xc8 (FPO: [Non-Fpo]) 030afb20 0042965b 030afcc0 0214d780 02151218 ntdll!ZwReleaseSemaphore+0xc (FPO: [3,0,0]) 030afb7c 7c9206eb 02e6c471 02ea0000 00000008 MyApplication+0x2965b 030afe60 7c9205c8 02151248 030aff38 7c920551 ntdll!RtlAllocateHeap+0xeac (FPO: [Non-Fpo]) 030afe74 7c92056d 0210bfb8 02151250 02151250 ntdll!RtlpFreeToHeapLookaside+0x22 (FPO: [2,0,4]) 030aff38 77bfc2de 01a80000 00000000 77bfc2e3 ntdll!RtlFreeHeap+0x647 (FPO: [Non-Fpo]) 7c92056d c5ffffff ce7c94be ff7c94be 00ffffff msvcrt!free+0xc3 (FPO: [Non-Fpo]) 7c920575 ff7c94be 00ffffff 12000000 907c94be 0xc5ffffff 7c920579 00ffffff 12000000 907c94be 90909090 0xff7c94be *** WARNING: Unable to verify checksum for xerces-c_2_7.dll *** ERROR: Symbol file could not be found. Defaulted to export symbols for xerces-c_2_7.dll - 7c92057d 12000000 907c94be 90909090 8b55ff8b MyApplication+0xbfffff 7c920581 907c94be 90909090 8b55ff8b 08458bec xerces_c_2_7 7c920585 90909090 8b55ff8b 08458bec 04408b66 0x907c94be 7c920589 8b55ff8b 08458bec 04408b66 0004c25d 0x90909090 7c92058d 08458bec 04408b66 0004c25d 90909090 0x8b55ff8b The address MyApplication+0x2a85b9 corresponds to a call to erase() of a std::list. What I have tried so far Reviewing all the code related to the point where the crash ends happening. Trying to enable pageheap on our testing lab though nothing useful has been found by now. We have substituted the std::list for a C array and then it crashes in other part of the code (although it is related code, it's not in the code where the old list resided). Coincidentally, now it crashes in another erase, though this time of a std::multiset. Let me copy the stack contained in the dump: ntdll.dll!_RtlpCoalesceFreeBlocks@16() + 0x124e bytes ntdll.dll!_RtlFreeHeap@12() + 0x91f bytes msvcrt.dll!_free() + 0xc3 bytes MyApplication.exe!006a4fda() [Frames below may be incorrect and/or missing, no symbols loaded for MyApplication.exe] MyApplication.exe!0069f305() ntdll.dll!_NtFreeVirtualMemory@16() + 0xc bytes ntdll.dll!_RtlpSecMemFreeVirtualMemory@16() + 0x1b bytes ntdll.dll!_ZwWaitForSingleObject@12() + 0xc bytes ntdll.dll!_RtlpFreeToHeapLookaside@8() + 0x26 bytes ntdll.dll!_RtlFreeHeap@12() + 0x114 bytes msvcrt.dll!_free() + 0xc3 bytes c5ffffff() Possible solutions (that I'm aware of) which cannot be applied "Migrate the application to a newer compiler": We are working on this but It's not a solution at the moment. "Enable pageheap (normal or full)": We can't enable pageheap on production machines as this affects performance heavily. I think that's all I remember now, if I have forgotten something I'll add it asap. If you can give me some hint or propose some possible solution, don't hesitate to answer! Thank you in advance for your time and advice.

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  • [C#] Not enough memory or not enough handles?

    - by Nayan
    I am working on a large scale project where a custom (pretty good and robust) framework has been provided and we have to use that for showing up forms and views. There is abstract class StrategyEditor (derived from some class in framework) which is instantiated whenever a new StrategyForm is opened. StrategyForm (a customized window frame) contains StrategyEditor. StrategyEditor contains StrategyTab. StrategyTab contains StrategyCanvas. This is a small portion of the big classes to clarify that there are many objects that will be created if one StrategyForm object is allocated in memory at run-time. My component owns all these classes mentioned above except StrategyForm whose code is not in my control. Now, at run-time, user opens up many strategy objects (which trigger creation of new StrategyForm object.) After creating approx. 44 strategy objects, we see that the USER OBJECT HANDLES (I'll use UOH from here onwards) created by the application reaches to about 20k+, while in registry the default amount for handles is 10k. Read more about User Objects here. Testing on different machines made it clear that the number of strategy objects opened is different for message to pop-up - on one m/c if it is 44, then it can be 40 on another. When we see the message pop-up, it means that the application is going to respond slowly. It gets worse with few more objects and then creation of window frames and subsequent objects fail. We first thought that it was not-enough-memory issue. But then reading more about new in C# helped in understanding that an exception would be thrown if app ran out of memory. This is not a memory issue then, I feel (task manager also showed 1.5GB+ available memory.) M/C specs Core 2 Duo 2GHz+ 4GB RAM 80GB+ free disk space for page file Virtual Memory set: 4000 - 6000 My questions Q1. Does this look like a memory issue and I am wrong that it is not? Q2. Does this point to exhaustion of free UOHs (as I'm thinking) and which is resulting in failure of creation of window handles? Q3. How can we avoid loading up of an StrategyEditor object (beyond a threshold, keeping an eye on the current usage of UOHs)? (we already know how to fetch number of UOHs in use, so don't go there.) Keep in mind that the call to new StrategyForm() is outside the control of my component. Q4. I am bit confused - what are Handles to user objects exactly? Is MSDN talking about any object that we create or only some specific objects like window handles, cursor handles, icon handles? Q5. What exactly cause to use up a UOH? (almost same as Q4) I would be really thankful to anyone who can give me some knowledgeable answers. Thanks much! :)

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  • Proguard and two projects using the same android library. broadcasting. ClassNotFoundException

    - by trololo
    The problem:I have got 2 apps. The interact with each other via broadcasting. I have parcelable class in the android library (they send content of class in the library). So after using Proguard I have got ClassNotFondException. How to solve it? 07-03 02:13:51.832: E/AndroidRuntime(6801): FATAL EXCEPTION: main 07-03 02:13:51.832: E/AndroidRuntime(6801): java.lang.RuntimeException: Unable to start receiver <appname>.<name>.ar.free.BRMain: java.lang.RuntimeException: Parcelable encounteredClassNotFoundException reading a Serializable object (name = <appname>.a.a.b) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2277) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.app.ActivityThread.access$1500(ActivityThread.java:140) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Handler.dispatchMessage(Handler.java:99) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Looper.loop(Looper.java:137) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.app.ActivityThread.main(ActivityThread.java:4898) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.lang.reflect.Method.invokeNative(Native Method) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.lang.reflect.Method.invoke(Method.java:511) 07-03 02:13:51.832: E/AndroidRuntime(6801): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006) 07-03 02:13:51.832: E/AndroidRuntime(6801): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773) 07-03 02:13:51.832: E/AndroidRuntime(6801): at dalvik.system.NativeStart.main(Native Method) 07-03 02:13:51.832: E/AndroidRuntime(6801): Caused by: java.lang.RuntimeException: Parcelable encounteredClassNotFoundException reading a Serializable object (name = <appname>.a.a.b) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Parcel.readSerializable(Parcel.java:2148) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Parcel.readValue(Parcel.java:2016) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Parcel.readMapInternal(Parcel.java:2226) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Bundle.unparcel(Bundle.java:223) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Bundle.getInt(Bundle.java:922) 07-03 02:13:51.832: E/AndroidRuntime(6801): at <appname>.<name>.ar.free.BRMain.onReceive(BRMain.java:35) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.app.ActivityThread.handleReceiver(ActivityThread.java:2270) 07-03 02:13:51.832: E/AndroidRuntime(6801): ... 10 more 07-03 02:13:51.832: E/AndroidRuntime(6801): Caused by: java.lang.ClassNotFoundException: <appname>.a.a.b 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.lang.Class.classForName(Native Method) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.lang.Class.forName(Class.java:217) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:2301) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.io.ObjectInputStream.readNewClassDesc(ObjectInputStream.java:1660) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:683) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.io.ObjectInputStream.readNewObject(ObjectInputStream.java:1803) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.io.ObjectInputStream.readNonPrimitiveContent(ObjectInputStream.java:787) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2003) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:1960) 07-03 02:13:51.832: E/AndroidRuntime(6801): at android.os.Parcel.readSerializable(Parcel.java:2142) 07-03 02:13:51.832: E/AndroidRuntime(6801): ... 16 more 07-03 02:13:51.832: E/AndroidRuntime(6801): Caused by: java.lang.NoClassDefFoundError: <appname>/a/a/b 07-03 02:13:51.832: E/AndroidRuntime(6801): ... 26 more 07-03 02:13:51.832: E/AndroidRuntime(6801): Caused by: java.lang.ClassNotFoundException: <appname>.a.a.b 07-03 02:13:51.832: E/AndroidRuntime(6801): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.lang.ClassLoader.loadClass(ClassLoader.java:501) 07-03 02:13:51.832: E/AndroidRuntime(6801): at java.lang.ClassLoader.loadClass(ClassLoader.java:461) 07-03 02:13:51.832: E/AndroidRuntime(6801): ... 26 more

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  • globals and locals in python exec()

    - by hawkettc
    Hi, I'm trying to run a piece of python code using exec. my_code = """ class A(object): pass print 'locals: %s' % locals() print 'A: %s' % A class B(object): a_ref = A """ global_env = {} local_env = {} my_code_AST = compile(my_code, "My Code", "exec") exec(my_code_AST, global_env, local_env) print local_env which results in the following output locals: {'A': <class 'A'>} A: <class 'A'> Traceback (most recent call last): File "python_test.py", line 16, in <module> exec(my_code_AST, global_env, local_env) File "My Code", line 8, in <module> File "My Code", line 9, in B NameError: name 'A' is not defined However, if I change the code to this - my_code = """ class A(object): pass print 'locals: %s' % locals() print 'A: %s' % A class B(A): pass """ global_env = {} local_env = {} my_code_AST = compile(my_code, "My Code", "exec") exec(my_code_AST, global_env, local_env) print local_env then it works fine - giving the following output - locals: {'A': <class 'A'>} A: <class 'A'> {'A': <class 'A'>, 'B': <class 'B'>} Clearly A is present and accessible - what's going wrong in the first piece of code? I'm using 2.6.5, cheers, Colin * UPDATE 1 * If I check the locals() inside the class - my_code = """ class A(object): pass print 'locals: %s' % locals() print 'A: %s' % A class B(object): print locals() a_ref = A """ global_env = {} local_env = {} my_code_AST = compile(my_code, "My Code", "exec") exec(my_code_AST, global_env, local_env) print local_env Then it becomes clear that locals() is not the same in both places - locals: {'A': <class 'A'>} A: <class 'A'> {'__module__': '__builtin__'} Traceback (most recent call last): File "python_test.py", line 16, in <module> exec(my_code_AST, global_env, local_env) File "My Code", line 8, in <module> File "My Code", line 10, in B NameError: name 'A' is not defined However, if I do this, there is no problem - def f(): class A(object): pass class B(object): a_ref = A f() print 'Finished OK' * UPDATE 2 * ok, so the docs here - http://docs.python.org/reference/executionmodel.html 'A class definition is an executable statement that may use and define names. These references follow the normal rules for name resolution. The namespace of the class definition becomes the attribute dictionary of the class. Names defined at the class scope are not visible in methods.' It seems to me that 'A' should be made available as a free variable within the executable statement that is the definition of B, and this happens when we call f(), but not when we use exec(). This can be more easily shown with the following - my_code = """ class A(object): pass print 'locals in body: %s' % locals() print 'A: %s' % A def f(): print 'A in f: %s' % A f() class B(object): a_ref = A """ which outputs locals in body: {'A': <class 'A'>} A: <class 'A'> Traceback (most recent call last): File "python_test.py", line 20, in <module> exec(my_code_AST, global_env, local_env) File "My Code", line 11, in <module> File "My Code", line 9, in f NameError: global name 'A' is not defined So I guess the new question is - why aren't those locals being exposed as free variables in functions and class definitions - it seems like a pretty standard closure scenario.

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  • can anyone help how to get data from a plist, precisely inside the array

    - by jix
    Can anyone help me with getting data from this plist? I'm having trouble accessing the values of the three objects in the plist. i can see all the list of countries in my tableView, but i can't see the prices when i tap on a cell . any help please thanks MY PLIST <plist version="1.0"> <dict> <key>Afghanistan 3</key> <array> <string>RC $1.65</string> <string>CC $2.36</string> <string>EC 0</string> </array> <key>Albania 1</key> <array> <string>RC FREE</string> <string>CC $1.01</string> </array> <key>Algeria 2</key> <array> <string>RC $0.27</string> <string>CC $0.85</string> </array> <key>Andorra 2</key> <array> <string>RC FREE</string> <string>CC $0.93</string> also my code that i have implemented in xcode 4.5 . cc is the calling rate that is in item 0 in the plist rc is the receiving rate that is in item 1 in the plist ec is the extra rate that is in item 2 in the plist how can i see the cc ,rc, & ec each in a label when i click the cell in the next view controller ? MY CODE NSString *ratesFile = [[NSBundle mainBundle] pathForResource:@"rates" ofType:@"plist"]; rates = [[NSDictionary alloc]initWithContentsOfFile:ratesFile]; NSArray * dictionaryKeys = [rates allKeys]; name = [dictionaryKeys sortedArrayUsingSelector:@selector(compare:)]; cc = [rates objectForKey:@"Item 0"]; rc = [rates objectForKey:@"Item 1"]; ec = [rates objectForKey:@"Item 2"]; - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [rates count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } NSString *countryName = [name objectAtIndex:indexPath.row]; cell.textLabel.text = countryName; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { NSString *ccRate = [cc objectAtIndex:indexPath.row]; if (!self.detailViewController) { self.detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil]; } self.detailViewController.detailItem = ccRate; [self.navigationController pushViewController:self.detailViewController animated:YES]; } thank in advance

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  • Are there supposed to be more restrictions on operator->* overloads?

    - by Potatoswatter
    I was perusing section 13.5 after refuting the notion that built-in operators do not participate in overload resolution, and noticed that there is no section on operator->*. It is just a generic binary operator. Its brethren, operator->, operator*, and operator[], are all required to be non-static member functions. This precludes definition of a free function overload to an operator commonly used to obtain a reference from an object. But the uncommon operator->* is left out. In particular, operator[] has many similarities. It is binary (they missed a golden opportunity to make it n-ary), and it accepts some kind of container on the left and some kind of locator on the right. Its special-rules section, 13.5.5, doesn't seem to have any actual effect except to outlaw free functions. (And that restriction even precludes support for commutativity!) So, for example, this is perfectly legal (in C++0x, remove obvious stuff to translate to C++03): #include <utility> #include <iostream> #include <type_traits> using namespace std; template< class F, class S > typename common_type< F,S >::type operator->*( pair<F,S> const &l, bool r ) { return r? l.second : l.first; } template< class T > T & operator->*( pair<T,T> &l, bool r ) { return r? l.second : l.first; } template< class T > T & operator->*( bool l, pair<T,T> &r ) { return l? r.second : r.first; } int main() { auto x = make_pair( 1, 2.3 ); cerr << x->*false << " " << x->*4 << endl; auto y = make_pair( 5, 6 ); y->*(0) = 7; y->*0->*y = 8; // evaluates to 7->*y = y.second cerr << y.first << " " << y.second << endl; } I can certainly imagine myself giving into temp[la]tation. For example, scaled indexes for vector: v->*matrix_width[5] = x; Did the standards committee forget to prevent this, was it considered too ugly to bother, or are there real-world use cases?

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  • Create / build / generate a web form that can be on my server and has modern looks and could be impl

    - by Luay
    I have a small web site and would like to add a 'contact us' form and a 'feedback' form. i would like the forms to satisfy the following: 1- be modern looking (with beautiful css effects) 2- the form fields are validated properly and 'inline'. What I mean is once a user skips a required field or enters an email address incorrectly some kind of tooltip or icon is displayed to ask him to cerrect the error (as opposed to a message box that appears after the user clicks 'submit') 3- once the submit button is clicked the form contents are emailed to me. 4- the whole thing can be setup by a noob like myself. 5- no ads on the form I have been searching for at least 5 days for a solution but I can't seem to find anything the would satisfy the above 5 conditions. I don't mind paying for a solution as long as it is hosted on my site and it is a one off payment and not a monthly payment. So far my search has lead me to the following: 1 wufoo. The good: the generated forms seem to look okay but not the best there is. The bad: the free service is limited to 100 submissions. ads on the form. it is not hosted on my server. Paid service requires monthly payments 2- emailmeform: almost same as above except the generated form looks old. They do have an offer where you pay only $4 to get the form and set it up on your own site but that doesn't solve the fact that the forms look old. 3- formAssembly: same as above with minor variations (the generated form looks better) 4- formchamp, formthis, kontaktr,... And other similar online services: the same problem. either the form generated looks outdated or require monthly payments or they put ads...they don't satisfy my conditions. 5- coffeecup form builder. a desktop software. The problem is the generated forms look too old and use flash. 6- simfatic. Another software. Much better than coffeecup. almost satisfies my conditions but the forms not as good as I like. 7- many, many php scripts or html templates that look so outdated or fail when tested (probably because they are too old). Seriously guys, how hard is this. At least 90%+ of website contain at least a 'contact us' form. Why aren't there better solutions? if there is I can't seem to find them. In terms of looks I want something similar to this: http://web-kreation.com/articles/lightform-free-ajaxphp-contact-form/ It is called lightform. And this is a perfect example of what I mean by 'inline' validation. the only problem: there is no script to handle sending the mail. Even if I find one, I don't know how to modify it for my needs. So could you please help me out. I really can't search anymore. I reached rock bottom with this issue. I need a complete solution. If nothing exists then at least a: 1- form template (html) that looks nice and can easily be modified 2- a validation script that does 'inline' validation like the example above (or similar to it) and can be easily implemented by a noob like me to work with the html form. 3- a php script that will handle sending the email and can be easily implemented (all three working in harmony). I hope there is a complete solution but am I asking for too much? Pretty please...help...

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  • where is the error in this C code , and how to get rid of the warnings?

    - by mekasperasky
    #include<stdio.h> #include<string.h> //This program is a sorting application that reads a sequence of numbers from a file and prints them on the screen . The reading from the file here , is a call back function . typedef int (*CompFunc)(const char* , const char* ); typedef int (*ReadCheck)(char nullcheck); char array[100]; //Let this fucntion be done in the library itself . It doesnt care as to where the compare function and how is it implemented . Meaning suppose the function wants to do sort in ascending order or in descending order then the changes have to be done by the client code in the "COMPARE" function who will be implementing the lib code . void ReadFile(FILE *fp,ReadCheck rc) { char a; char d[100]; int count = 0,count1=0; a=fgetc(fp); while(1 != (*rc)(a)) { if(a=='\0') { strcpy(array[count],d); count=count+1; } else { d[count1]=a; count1=count1+1; } } } void Bubblesort(int* array , int size , int elem_size , CompFunc cf) { int i,j; int *temp; for( i=0;i < size ;i++) { for ( j=0;j < size -1 ; j++) { // make the callback to the comparision function if(1 == (*cf)(array+j*elem_size,array+ (j+1)*elem_size)) { //interchanging of elements temp = malloc(sizeof(int *) * elem_size); memcpy(temp , array+j*elem_size,elem_size); memcpy(array+j*elem_size,array+(j+1)*elem_size,elem_size); memcpy(array + (j+1)*elem_size , temp , elem_size); free(temp); } } } } //Let these functions be done at the client side int Compare(const char* el1 , const char* el2) { int element1 = *(int*)el1; int element2 = *(int*)el2; if(element1 < element2 ) return -1; if(element1 > element2) return 1 ; return 0; } int ReadChecked(char nullcheck) { if (nullcheck=='\n') return 1; else return 0; } int main() { FILE fp1; int k; fp1=fopen("readdata.txt","r"); Readfile(fp1,&ReadChecked); Bubblesort((char*)array,5,sizeof(array[0]),&Compare); printf("after sorting \n"); for (k=0;k<5;k++) printf("%d",array[k]); return 0; } The error i get is fsc1.c: In function ‘ReadFile’: fsc1.c:19: warning: passing argument 1 of ‘strcpy’ makes pointer from integer without a cast fsc1.c: In function ‘Bubblesort’: fsc1.c:40: warning: passing argument 1 of ‘cf’ from incompatible pointer type fsc1.c:40: warning: passing argument 2 of ‘cf’ from incompatible pointer type fsc1.c:43: warning: incompatible implicit declaration of built-in function ‘malloc’ fsc1.c:47: warning: incompatible implicit declaration of built-in function ‘free’ fsc1.c: In function ‘main’: fsc1.c:80: error: incompatible types in assignment fsc1.c:82: warning: passing argument 1 of ‘Bubblesort’ from incompatible pointer type

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  • Adjust parameters of serial port reading

    - by clinisbut
    Hello. I'm facing a particular issue that regards serial communication under win32. I'm communicating with a device can only accept frames when it is not already communicating. So I must find a valid frame and then inmediatelly send my request. I developed a class named Serial that handles basic operations on serial port (open, close, read, write) and then a Thread calls inside a loop read and write functions. Thread loop //Device is an object of class Serial while( device->isOpen() && !terminate ) { unsigned int readed = 0; unsigned long error = ERROR_SUCCESS; unsigned char* data = device->read( &readed, &error ); if( error==ERROR_SUCCESS ) { //If data received, deliver to upper level if( readed>0 ) { QByteArray output( (const char*)data, (signed int)readed ); emit dataArrived( output, readed ); } } else { //unrelated stuff } //Here I manage the writting issue //Only when nothing is received, and Upper layer wants to send a frame //(Upper layer only will mark as something to send when it detects a valid frame) if( readed==0 ) { out_lock.lock(); //If something to send... if( something_to_send > 0 ) { if( device->write( output_buffer, output_size, &error ) ) { //things... } } } } The Thread basically keeps reading, and when nothing is received, sees if somebody has signaled to send a frame (this means that a valid frame is just received). When this happens, it writes the frame through serial port. Here comes my problem. Inside the Serial::read() function: I use the overlapped way of reading: ::ClearCommError( handle, &dwErrors, &stat); if( stat.cbInQue ) { //If there's something to read, read it, please note the bytes to read parameter, here 1. bool ok = ::ReadFile( handle, buffer_in, 1, &bytes_read, &ov_reader ); if( !ok ) { DWORD _error = ::GetLastError(); if( _error == ERROR_IO_PENDING ) { DWORD result = ::WaitForMultipleObjects( 2, waiters, FALSE,INFINITE ); switch( result ) { //Eventshutdown case WAIT_OBJECT_0: /*code omitted*/break; case WAIT_OBJECT_0+1: ok = ::GetOverlappedResult( handle, &ov_reader, &bytes_read, true ); //check ok value omitted break; } } } } if( bytes_read>0 ) { *size = bytes_read; } Here starts my problem. When device sends me small frames (around 30 bytes) everything works fine, but when larger frames are sent, the code is not able to find any free time between frames causing the thread to never be able send any frame because readed is never 0. If I increase the number of bytes to read inside the read() function, lose the ability to detect when the device "listens": bool ok = ::ReadFile(handle, buffer_in, 50, &bytes_read, &ov_reader ); This happens because my app can receive the end of a frame together with the start of the next one. This behaviour is very common. In the other hand, if I change the INFINITE argument by a valid timeout in the WaitForMultipleObjects function, I lose data. So my question basically is... what I'm doing wrong? Why when reading 1 byte each time I don't find any free time to send my own frames? Thank you

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  • Draw camera position in specific view port.

    - by snackbar
    Most of this code should be fairly self explanatory. I got an display function and my view port function. There are two modes which is 4 small view ports in the window or one large. I got one camera which can be moved and if in 4 view port mode just 3 fixed angles. The thing is I want the free moving cameras position to be displayed in the 3 other view ports. I tried doing it by drawing spheres using opengl but the problem is that then the position gets draw in the free roaming camera too as it shows the same scene. It doesn't have to be a sphere, just something simple that represents the cameras spacial position in these three other views. Drawing the scene once with camera object showing for the three viewports, render to texture. Clear and draw scene without camera object render to texture and then stitch these together before actually drawing the scene seems like a lot o work for something that should be easy. void display(int what) { if(what==5){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); camControll();} if(what==1){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(75,15,-5,0,5,-5,0,1,0);} if(what==2){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0,110,0,0,0,0,1,0,0);} if(what==3){ glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, float(320) / float(240), 0.1f, 100.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); camControll();} if(what==4){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(185,75,25,0,28,0,0,1,0);} glClearColor(0, 0, 0, 1); glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); drawScene(); drawCamera(); glutSwapBuffers(); } void viewport(){ glEnable(GL_SCISSOR_TEST); if(!divided_view_port) { glViewport(0, 0, w, h); glScissor(0,0,640,480); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 100.0f); display(5); } else { ////////////////////// bottom left - working glViewport(0, 0, w/2, h/2); glScissor(0,0,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(1); ////////////////////// ////////////////////// top right - working glViewport(w/2, h/2, w/2, h/2); glScissor(w/2,h/2,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(2); ////////////////////// ////////////////////// bottom right -working glViewport(w/2, 0, w/2, h/2); glScissor(w/2,0,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(3); //////////////////////// ////////////////////////// top left glViewport(0, h/2, w/2, h/2); glScissor(0,h/2,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(4); /////////////////////////// } glDisable(GL_SCISSOR_TEST); glMatrixMode(GL_MODELVIEW); }

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  • LINQ-like or SQL-like DSL for end-users to run queries to select (not modify) data?

    - by Mark Rushakoff
    For a utility I'm working on, the client would like to be able to generate graphic reports on the data that has been collected. I can already generate a couple canned graphs (using ZedGraph, which is a very nice library); however, the utility would be much more flexible if the graphs were more programmable or configurable by the end-user. TLDR version I want users to be able to use something like SQL to safely extract and select data from a List of objects that I provide and can describe. What free tools or libraries will help me accomplish this? Full version I've given thought to using IronPython, IronRuby, and LuaInterface, but frankly they're all a bit overpowered for what I want to do. My classes are fairly simple, along the lines of: class Person: string Name; int HeightInCm; DateTime BirthDate; Weight[] WeighIns; class Weight: int WeightInKg; DateTime Date; Person Owner; (exact classes have been changed to protect the innocent). To come up with the data for the graph, the user will choose whether it's a bar graph, scatter plot, etc., and then to actually obtain the data, I would like to obtain some kind of List from the user simply entering something SQL-ish along the lines of SELECT Name, AVG(WeighIns) FROM People SELECT WeightInKg, Owner.HeightInCm FROM Weights And as a bonus, it would be nice if you could actually do operations as well: SELECT WeightInKg, (Date - Owner.BirthDate) AS Age FROM Weights The DSL doesn't have to be compliant SQL in any way; it doesn't even have to resemble SQL, but I can't think of a more efficient descriptive language for the task. I'm fine filling in blanks; I don't expect a library to do everything for me. What I would expect to exist (but haven't been able to find in any way, shape, or form) is something like Fluent NHibernate (which I am already using in the project) where I can declare a mapping, something like var personRequest = Request<Person>(); personRequest.Item("Name", (p => p.Name)); personRequest.Item("HeightInCm", (p => p.HeightInCm)); personRequest.Item("HeightInInches", (p => p.HeightInCm * CM_TO_INCHES)); // ... var weightRequest = Request<Weight>(); weightRequest.Item("Owner", (w => w.Owner), personRequest); // Indicate a chain to personRequest // ... var people = Table<Person>("People", GetPeopleFromDatabase()); var weights = Table<Weight>("Weights", GetWeightsFromDatabase()); // ... TryRunQuery(userInputQuery); LINQ is so close to what I want to do, but AFAIK there's no way to sandbox it. I don't want to expose any unnecessary functionality to the end user; meaning I don't want the user to be able to send in and process: from p in people select (p => { System.IO.File.Delete("C:\\something\\important"); return p.Name }) So does anyone know of any free .NET libraries that allow something like what I've described above? Or is there some way to sandbox LINQ? cs-script is close too, but it doesn't seem to offer sandboxing yet either. I'd be hesitant to expose the NHibernate interface either, as the user should have a read-only view of the data at this point in the usage. I'm using C# 3.5, and pure .NET solutions would be preferred. The bottom line is that I'm really trying to avoid writing my own parser for a subset of SQL that would only apply to this single project.

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  • Tool or library for end-users to run queries to select (not modify) data?

    - by Mark Rushakoff
    For a utility I'm working on, the client would like to be able to generate graphic reports on the data that has been collected. I can already generate a couple canned graphs (using ZedGraph, which is a very nice library); however, the utility would be much more flexible if the graphs were more programmable or configurable by the end-user. TLDR version I want users to be able to use something like SQL to safely extract and select data from a List of objects that I provide and can describe. What free tools or libraries will help me accomplish this? Full version I've given thought to using IronPython, IronRuby, and LuaInterface, but frankly they're all a bit overpowered for what I want to do. My classes are fairly simple, along the lines of: class Person: string Name; int HeightInCm; DateTime BirthDate; Weight[] WeighIns; class Weight: int WeightInKg; DateTime Date; Person Owner; (exact classes have been changed to protect the innocent). To come up with the data for the graph, the user will choose whether it's a bar graph, scatter plot, etc., and then to actually obtain the data, I would like to obtain some kind of List from the user simply entering something SQL-ish along the lines of SELECT Name, AVG(WeighIns) FROM People SELECT WeightInKg, Owner.HeightInCm FROM Weights And as a bonus, it would be nice if you could actually do operations as well: SELECT WeightInKg, (Date - Owner.BirthDate) AS Age FROM Weights The DSL doesn't have to be compliant SQL in any way; it doesn't even have to resemble SQL, but I can't think of a more efficient descriptive language for the task. I'm fine filling in blanks; I don't expect a library to do everything for me. What I would expect to exist (but haven't been able to find in any way, shape, or form) is something like Fluent NHibernate (which I am already using in the project) where I can declare a mapping, something like var personRequest = Request<Person>(); personRequest.Item("Name", (p => p.Name)); personRequest.Item("HeightInCm", (p => p.HeightInCm)); personRequest.Item("HeightInInches", (p => p.HeightInCm * CM_TO_INCHES)); // ... var weightRequest = Request<Weight>(); weightRequest.Item("Owner", (w => w.Owner), personRequest); // Indicate a chain to personRequest // ... var people = Table<Person>("People", GetPeopleFromDatabase()); var weights = Table<Weight>("Weights", GetWeightsFromDatabase()); // ... TryRunQuery(userInputQuery); LINQ is so close to what I want to do, but AFAIK there's no way to sandbox it. I don't want to expose any unnecessary functionality to the end user; meaning I don't want the user to be able to send in and process: from p in people select (p => { System.IO.File.Delete("C:\\something\\important"); return p.Name }) So does anyone know of any free .NET libraries that allow something like what I've described above? Or is there some way to sandbox LINQ? cs-script is close too, but it doesn't seem to offer sandboxing yet either. I'd be hesitant to expose the NHibernate interface either, as the user should have a read-only view of the data at this point in the usage. I'm using C# 3.5, and pure .NET solutions would be preferred. The bottom line is that I'm really trying to avoid writing my own parser for a subset of SQL that would only apply to this single project.

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  • SQL Server 2008 R2 Quiet Installation Failure

    - by pk
    I've downloaded the SQL Server 2008 R2 software from Microsoft and am working on scripting a silent installation. I'm getting the following errors (and the duplicate paste job is not an accident, that's how it shows up for me) The following error occurred: Exception has been thrown by the target of an invocation. Error result: 1152035024 Result facility code: 1194 Result error code: 43216 Please review the summary.txt log for further details The following error occurred: Exception has been thrown by the target of an invocation. Error result: 1152035024 Result facility code: 1194 Result error code: 43216 Please review the summary.txt log for further details Microsoft (R) SQL Server 2008 R2 Setup 10.50.1600.01 This is what shows up in the detailed SQL install log. 2011-02-23 09:53:13 Slp: Running Action: ExecuteInitWorkflow 2011-02-23 09:53:13 Slp: Workflow to execute: 'INITIALIZATION' 2011-02-23 09:53:13 Slp: Error: Action "Microsoft.SqlServer.Configuration.BootstrapExtension.ExecuteWorkflowAction" threw an exception during execution. 2011-02-23 09:53:13 Slp: Microsoft.SqlServer.Setup.Chainer.Workflow.ActionExecutionException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. 2011-02-23 09:53:13 Slp: Parameter name: InstallMediaPath Hopefully someone can help me work through this. Here is a simple version of my PowerShell code. $arguments = @() $arguments += "/q" $arguments += "/ACTION=Install" $arguments += "/FEATURES=SQL,Tools" $arguments += "/INSTANCENAME=MSSQLSERVER" $arguments += "/SQLSVCACCOUNT=`"$NetBIOSDomainName\$SQLServerServiceAccount`"" $arguments += "/SQLSVCPASSWORD=`"$SQLServerServiceAccountPassword`"" $arguments += "/SQLSYSADMINACCOUNTS=`"$NetBIOSDomainName\$SQLSysAdminAccount`"" $arguments += "/AGTSVCACCOUNT=`"$NetBIOSDomainName\$SQLServerAgentAccount`"" $arguments += "/IACCEPTSQLSERVERLICENSETERMS" Start-Process "$SQLServerSetupLocation\setup.exe" -Wait -ArgumentList $arguments -RedirectStandardOutput error.txt

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  • Unpacking a ZTE ZXV10 H108L router firmware

    - by v3ng3ful
    I binwalked a firmware of a ZTE ZXV10 H108L, and got some encouraging results of uImage uboot, and LZMA compression, as well as a Squashfs 3.0 LZMA compressed filesystem. 256 0x100 uImage header, header size: 64 bytes, header CRC: 0xE70BCBB9, created: Thu Nov 10 04:54:54 2011, image size: 804172 bytes, Data Address: 0x80002000, Entry Point: 0x80266000, data CRC: 0x6EFE90F1, OS: Linux, CPU: MIPS, image type: OS Kernel Image, compression type: lzma, image name: MIPS Linux-2.6.20 320 0x140 LZMA compressed data, properties: 0x5D, dictionary size: 8388608 bytes, uncompressed size: 2637958 bytes 851968 0xD0000 Squashfs filesystem, big endian, lzma signature, version 3.0, size: 2543403 bytes, 632 inodes, blocksize: 65536 bytes, created: Thu Nov 10 04:56:12 2011 Now what I did is, to test several portions of the file (320byte-end, 851968byte-end, and many more) using dd, and trying with certain tools to uncompress/unpack the filesystem of the firmware. After some digging I found out the best tool to do this is the firmware_mod_kit, that understands a squashfs-lzma v3 filesystem. Although I ended up really frustrated as unsquashfs-lzma v3 reported a cold "zlib::uncompress failed, unknown error -3". Do you have any ideas? Could it be that, the firmware is corrupted on purpose to discourage attempts like this? Router file Thanks

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  • Importing AMIs from Hyper-v VHDX

    - by jwdaigle
    I have a couple of VHDX files that we use to template locally hosted VMs. I would like to try (some) of these on Amazon, so I need to build an AMI to upload to AWS. I have found http://aws.amazon.com/ec2/vmimport/ , which is very helpful to get started. It appears that AWS does not yet support VHDX, so I found some info that told me to export it out of Hyper-V as a VHD file, and then convert/upload it, which I am in the process of trying out. But the real question is that when I was looking for info, I came across http://stackoverflow.com/questions/14346114/unable-to-rdp-to-ec2-instance . The AWS documentation seems to imply that all I need to do is run the importer and all will be well. True? I dont want to waste all the upload bandwidth and then find out it wont work. Is there something I need to install into the Hyper-V VM before converting/upload it using the AWS command line tools? EC2-Config? Any help greatly appreciated -

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  • TortoiseSVN hangs in Windows Server 2012 Azure VM

    - by ZaijiaN
    Following @shanselman's article on remoting into an Azure VM for development, I spun up my own VS 2013 VM, and that image runs on WS 2012. Once I was able to remote in, I started installing all my dev tools, including Tortoise SVN 1.8.3 64bit. Things went south once I started attempting to check out code from my personal svn server. It would hang and freeze often, although sometimes it would work - I was able to partially check out projects, but I would get frequent connection time out errors. My personal svn server (VisualSVN 2.7.2) runs at home on a windows 7 machine, and I have a dyndns url pointing to it. I have also configured my router to passthrough all 443 traffic to the appropriate port on the server. I self-signed a cert and made sure it was imported into the VM cert store under trusted root authorities. I have no problems connecting to my svn server from 4-5 other computers & locations. From the Azure VM, in both IE and Chrome, I can access the repository web browser with no issues. There are no outbound firewall restrictions. I have installed other SVN add-ons for Visual Studio (AnkhSVN, VisualSVN) and attempted to connect with my svn server, with largely the same results - random and persistent connection issues (hangs/timeouts). I spun up a completely fresh WS 2008 Azure VM, and installed TortoiseSVN, and had the same results. So I'm at a loss as to what the problem is and how to fix it. Web searches on tortoisesvn and windows server issues doesn't yield any current or relevant information. At this point, i'm guessing that maybe some setting or configuration that MS Azure VM images is the culprit - although I should probably attempt to spin up my own local WS VM to rule out that it's a window server issue. Any thoughts? I hope I'm just missing something really obvious!

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  • "0x80004005: Unspecified error" when renaming folders in Windows 7

    - by Michael Steele
    Setup I've just installed Windows 7 Ultimate 64bit. The operating system is installed on an 80GB Intel X-25M. I have a secondary 500GB Barracuda 7200.12 to be used for storage. This second drive is mounted as 'G'. Problem I'm getting an error whenever I try to rename a folder within this drive. The error says: An unexpected error is keeping you from renaming the folder. If you continue to receive this error, you can use the error code to search for help with this problem. Error 0x80004005: Unspecified error Clicking the "Try Again" button gets past the error, and correctly renames the folder. If I create a folder and leave it's name as "New Folder", then I don't see an error. I'm also able to manipulate files however I want without seeing an error. Things I've Tried Changing permissions on the drive Reformatting the drive. I've tried using both a "Basic" and "Dynamic" partition table. Checking the drive for errors using Microsoft tools Things I've Not Yet Tried When I first installed Windows I was given a choice between three types of partitions to use. I no longer remember what the choices were or what I selected. One was a GUID partition table, one was a traditional MBR, and I can't remember the third option.

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  • HYPER-V R2 Can not mount ISO from network location (UNC Path)

    - by Entity_Razer
    So, as the name suggest I'm trying to mount a ISO from a network share using the UNC path to a HYPER-V R2 Cluster. This is a pure Demo / test case setup with: 2x HYPER-V R2 1X NAS/iSCSI CSV Cluster Management is happening through the MMC with RSAT tools. So what i've done so far is: Set up the cluster and configure Quorum, add CSV Shares and disks, set up 1 Virtual Machine on the Hyper-1 node. What i'm trying to do is, you go to settings --- DVD Drive --- use network location ---- Pick ISO file and press "apply". Error I'm getting is either "User account does not have rights to mount iso". I changed that or stopped getting that message when I went to the HYPER-V Node settings and tabbed on: "Use Default Credentials Automatically". Now I stopped getting the "user does not have right..." message but I get the following: Error applying DVD Drive Changes Failed to remove device microsoft synthetic DVD Drive:" the specified network resource or device is no longer available" I've google'd the problem but am unable to find a solution. Anyone here able to help me out ? Much abbliged !

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  • Windows Server 2008 R2 DFSR Backlog Troubleshooting - Where to look for the cause of the problem?

    - by caleban
    Our target server indicates it has hundreds of thousands of backlogged transactions. Our authoritative source server indicates it has no backlogged transactions. No replication is taking place. Tests with plain text files aren't replicating. dfsdiag propogation tests fail to propogate. I've restarted the DFS services. I've restarted the servers. I've created new DFS shares to test with. The authoritative source server indicates it has no backlogs and the target indicates it has backlogs (which are the files it's waiting to receive). Files don't replicate in either direction. 2x Windows Server 2008 R2 Standard servers One server is at each of two sites The DFSR shares are on each respective server \site_1_server_1\users \site_2_server_1\users The sites are connected by a T1 DFSR worked for a week. I added a new share, another folder on the same servers, and that replicated for a weekend but never finished. Then all replication stopped. Is Windows DFSR flaky? What tools should I use and what should I look at to identify what's causing this problem?

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