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  • Where should I put a method that returns a list of active entries of a table?

    - by darga33
    I have a class named GuestbookEntry that maps to the properties that are in the database table named "guestbook". Very simple! Originally, I had a static method named getActiveEntries() that retrieved an array of all GuestbookEntry objects. Each row in the guestbook table was an object that was added to that array. Then while learning how to properly design PHP classes, I learned some things: Static methods are not desirable. Separation of Concerns Single Responsibility Principle If the GuestbookEntry class should only be responsible for managing single guestbook entries then where should this getActiveEntries() method most properly go? Update: I am looking for an answer that complies with the SOLID acronym principles and allows for test-ability. That's why I want to stay away from static calls/standard functions. DAO, repository, ...? Please explain as though your explanation will be part of "Where to Locate FOR DUMMIES"... :-)

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  • Processing a stream. Must layers be violated?

    - by Lord Tydus
    Theoretical situation: One trillion foobars are stored in a text file (no fancy databases). Each foobar must have some business logic executed on it. A set of 1 trillion will not fit in memory so the data layer cannot return a big set to the business layer. Instead they are to be streamed in 1 foobar at a time, and have business logic execute on 1 foobar at a time. The stream must be closed when finished. In order for the stream to be closed the business layer must close the stream (a data operation detail), thus violating the separation of concerns. Is it possible to incrementally process data without violating layers?

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  • Is it reasonable to insist on reproducing every defect before diagnosing and fixing it?

    - by amphibient
    I work for a software product company. We have large enterprise customers who implement our product and we provide support to them. For example, if there is a defect, we provide patches, etc. In other words, It is a fairly typical setup. Recently, a ticket was issued and assigned to me regarding an exception that a customer found in a log file and that has to do with concurrent database access in a clustered implementation of our product. So the specific configuration of this customer may well be critical in the occurrence of this bug. All we got from the customer was their log file. The approach I proposed to my team was to attempt to reproduce the bug in a similar configuration setup as that of the customer and get a comparable log. However, they disagree with my approach saying that I should not need to reproduce the bug (as that is overly time-consuming and will require simulating a server cluster on VMs) and that I should simply "follow the code" to see where the thread- and/or transaction-unsafe code is and put the change working off of a simple local development, which is not a cluster implementation like the environment from which the occurrence of the bug originates. To me, working out of an abstract blueprint (program code) rather than a concrete, tangible, visible manifestation (runtime reproduction) seems like a difficult working environment (for a person of normal cognitive abilities and attention span), so I wanted to ask a general question: Is it reasonable to insist on reproducing every defect and debug it before diagnosing and fixing it? Or: If I am a senior developer, should I be able to read (multithreaded) code and create a mental picture of what it does in all use case scenarios rather than require to run the application, test different use case scenarios hands on, and step through the code line by line? Or am I a poor developer for demanding that kind of work environment? Is debugging for sissies? In my opinion, any fix submitted in response to an incident ticket should be tested in an environment simulated to be as close to the original environment as possible. How else can you know that it will really remedy the issue? It is like releasing a new model of a vehicle without crash testing it with a dummy to demonstrate that the air bags indeed work. Last but not least, if you agree with me: How should I talk with my team to convince them that my approach is reasonable, conservative and more bulletproof?

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  • How should I implement the repository pattern for complex object models?

    - by Eric Falsken
    Our data model has almost 200 classes that can be separated out into about a dozen functional areas. It would have been nice to use domains, but the separation isn't that clean and we can't change it. We're redesigning our DAL to use Entity Framework and most of the recommendations that I've seen suggest using a Repository pattern. However, none of the samples really deal with complex object models. Some implementations that I've found suggest the use of a repository-per-entity. This seems ridiculous and un-maintainable for large, complex models. Is it really necessary to create a UnitOfWork for each operation, and a Repository for each entity? I could end up with thousands of classes. I know this is unreasonable, but I've found very little guidance implementing Repository, Unit Of Work, and Entity Framework over complex models and realistic business applications.

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  • Domain Model and Querying

    - by Tyrsius
    I am new to DDD, having worked only in Transaction-Script apps with an anemic model, or just Big Balls of Mud, so please forgive any terminology I abuse. I am trying to understand the proper separation between the domain model and the repository. What is the proper way to construct a domain object that is coming from a database, assuming the (incredibly simplified) need to query for objects by status (returns enumerable), or by ID. Should a factory be building the objects, exposing methods for GetByStatus() and GetByID(), using a DIed repository? Should a repository be called directly, knowing how to build a domain model from the DTO? Should the domain model have a constructor for get by ID, using a DIed repoistory to load the initial state, using some other (?) method for the list? I am not really sure what the best way would be, and this question has an answer advocating each one (these are certainly mutuallu exclusive).

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  • Where would a senior PHP developer locate the method getActiveEntries()?

    - by darga33
    I have a class named GuestbookEntry that maps to the properties that are in the database table named "guestbook". Very simple! Originally, I had a static method named getActiveEntries() that retrieved an array of all GuestbookEntry objects. Each row in the guestbook table was an object that was added to that array. Then while learning how to properly design PHP classes, I learned some things: Static methods are not desirable. Separation of Concerns Single Responsibility Principle If the GuestbookEntry class should only be responsible for managing single guestbook entries then where should this getActiveEntries() method most properly go? Update: I am looking for an answer that complies with the SOLID acronym principles and allows for test-ability. That's why I want to stay away from static calls/standard functions. DAO, repository, ...? Please explain as though your explanation will be part of "Where to Locate FOR DUMMIES"... :-)

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  • How to make show desktop work only on the current workspace?

    - by thenasko
    I am an active user of workspaces in Ubuntu. Until recently, pressing Ctrl+Alt+D (show desktop) acted only on the current workspace. For example, one might want to minimize the applications in the current workspace, open a file, and then bring some of them back. The current implementation works on all workspaces uniformly which is counter-intuitive to me. The reason for the existence of workspaces is the separation of logic -- one can have a browser open in one workspace, a text editor in another, a terminal in a third. The current functionality goes against this idea. Is there a way to restrict the action of the show desktop command to a single workspace only?

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  • ????????

    - by ???02
    ????????Oracle Database VaultOracle Database Vault???????2???????????????????(DBA)???????????·?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???????????????????????????????(??????)??????????????????????? Oracle Database Vault????????????DBA????????????????????DBA????????????????????????????? ??????????????????????????????????????Oracle Database Vault??Oracle-EBS?PeopleSoft?Siebel?SAP?????????????????????????????·?????????????????1. Separation of Duties (????)DBA(?????????)????????????????????????????????????????????????????·????? ????·???????????????????????????DBA????????????????????????????????????? ??????????????????Database Vault??DBA?????????????????????????????????????????????????????????????? ?????????????????????????????????????????2. ???(????)???????·?????????????·???????????????????????????????????????????????????????????????????????????????????????????????????????? SELECT/DML/EXECUTE ???????????????????????????????????????????????????????????????????????? DDL ???????????????????????????3. Multi-Factor Access Control Policy Enforcement (???????·??????)Oracle Database Vault???????????????????????????????????????????????????????·???????????????????????????????????????????????????DDL?DML???????????????????????????4. ???????·?????? ???????????????? (ex ???IP??????)??????? ??????????????? "??" or "???" ????????????????1???????????????????? ???·??? ???????????????? ???????????5. ????·???SQL???????????·???????????????·????true ???????????SQL??????????????????? ?????? Oracle Direct

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  • LoaderLock was detected, and turning off the warning does not help

    - by Scott M.
    I am trying to write an application that takes in sound from the default audio recording device on a computer. When running any code that accesses DirectX from my managed code i get this error: DLL 'C:\Windows\assembly\GAC\Microsoft.DirectX.DirectSound\1.0.2902.0__31bf3856ad364e35\Microsoft.DirectX.DirectSound.dll' is attempting managed execution inside OS Loader lock. Do not attempt to run managed code inside a DllMain or image initialization function since doing so can cause the application to hang. DevicesCollection coll = new DevicesCollection(); and Device d = new Device(DSoundHelper.DefaultCaptureDevice); and Capture c = new Capture(DSoundHelper.DefaultCaptureDevice); all cause the LoaderLock MDA to pop up and tell me there is a problem. I have scoured the internet (stackoverflow included) for solutions to this problem, but most people just say to turn off the warning, which does not work. When I turn off the warning, a generic ApplicationException is thrown, which is even less useful. I have seen the answers to this question as well, which didn't help because he said to remove the code that is causing the error. Others have said "fix your code." My questions are: how can I call any (preferably managed) DirectX code from C# without getting this error?

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  • fresh installation of PGF/TikZ crashes, why?

    - by Vincenzo
    I have a clean CentOS 5.5 machine with tetex installed. Next, I installed PGF/TikZ: wget http://media.texample.net/pgf/builds/pgfCVS2010-06-02_TDS.zip unzip pgfCVS2010-06-02_TDS.zip \cp -r tex /usr/share/texmf texhash I'm trying to compile a simple document and this is what I'm getting: $ latex test.tex This is pdfeTeX, Version 3.141592-1.21a-2.2 (Web2C 7.5.4) entering extended mode (./test.tex LaTeX2e <2003/12/01> .. skipped .. (/usr/share/texmf/tex/latex/pgf/frontendlayer/tikz.sty (/usr/share/texmf/tex/latex/pgf/pgf.sty (/usr/share/texmf/tex/latex/graphics/graphicx.sty (/usr/share/texmf/tex/latex/graphics/graphics.sty (/usr/share/texmf/tex/latex/graphics/trig.sty) (/usr/share/texmf/tex/latex/graphics/graphics.cfg)))) (/usr/share/texmf/tex/latex/pgf/utilities/pgffor.sty (/usr/share/texmf/tex/latex/pgf/utilities/pgfrcs.sty (/usr/share/texmf/tex/generic/pgf/utilities/pgfutil-common.tex) (/usr/share/texmf/tex/generic/pgf/utilities/pgfutil-latex.def) (/usr/share/texmf/tex/generic/pgf/utilities/pgfrcs.code.tex)) (/usr/share/texmf/tex/latex/pgf/utilities/pgfkeys.sty (/usr/share/texmf/tex/generic/pgf/utilities/pgfkeys.code.tex (/usr/share/texmf/tex/generic/pgf/utilities/pgfkeysfiltered.code.tex))) (/usr/share/texmf/tex/generic/pgf/utilities/pgffor.code.tex)) (/usr/share/texmf/tex/generic/pgf/frontendlayer/tikz/tikz.code.tex (/usr/share/texmf/tex/generic/pgf/libraries/pgflibraryplothandlers.code.tex ! Undefined control sequence. \pgfsetplottension ...ttension {\pgf@sys@tonumber \pgf@x } l.104 \pgfsetplottension{0.5} ? I failed to find any clues in the net about this problem. On other servers I don't such a problem. Could anyone help please? Thanks! ps. Btw, I tried another build of PGF/TikZ, the older one, no luck :(

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  • Eclipse Blackberry Preprocessor Not Working?

    - by Jessica
    I've already followed the directions @ http://stackoverflow.com/questions/1383277/using-preprocessor-directives-in-blackberry-jde-plugin-for-eclipse for making sure the blackberry plugin preprocessing hook is (theoretically) enabled. I'm using Eclipse 3.5.1 with Blackberry Plugin 1.1 with BB SDKs 4.7.0 and 4.6.0. I have my preprocessor defines set (and I've tried in both the Project's Blackberry Properties as well as the Workspace Blackberry Build settings), and checked their capitalization and spelling carefully too. I'm fairly confident the actual code to say "this stuff should be preprocessed" is good, because including/excluding preprocessed code seems to work fine on command line builds: //#preprocess --- at beginning of file and then code blocks like this throughout: //#ifndef jde_4_7 /* //#endif //#ifdef jde_4_7 import net.rim.device.api.ui.TouchEvent; //#endif //#ifndef jde_4_7 */ //#endif So what I can't figure out what else could be wrong that would cause Eclipse to not compile in my preprocessed code unless I remove the comments that are supposed to prevent the touch code from building into a build for blackberries that don't support touch. At one point it used to work (and no I haven't updated Eclipse), but sometime in the last couple of weeks it seemed to just stop working. And I'm getting kind of tired of the error-prone process of searching for ifdefs and manually commenting/uncommenting touch code and looking for a better solution while I do testing and initial development requiring testing both touch and non-touch functionality. Any other ideas on what could be wrong or how to fix it?

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  • java.lang.OutOfMemoryError: bitmap size exceeds VM budget ?

    - by UMMA
    friends, i am using following code to display bitmap on screen and having next and previous buttons to change images. and getting out of memory error New Code HttpGet httpRequest = null; try { httpRequest = new HttpGet(mImage_URL[val]); } catch (Exception e) { return 0; } HttpClient httpclient = new DefaultHttpClient(); HttpResponse response = (HttpResponse) httpclient.execute(httpRequest); Bitmap bm; HttpEntity entity = response.getEntity(); BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity); InputStream is = bufHttpEntity.getContent(); try { bm = BitmapFactory.decodeStream(is); }catch(Exception ex) { } is.close(); Old Code URL aURL = new URL(mImage_URL[val]); URLConnection conn = aURL.openConnection(); conn.connect(); InputStream is = null; try { is= conn.getInputStream(); }catch(IOException e) { } BufferedInputStream bis = new BufferedInputStream(is); bm = BitmapFactory.decodeStream(bis); bis.close(); is.close(); img.setImageBitmap(bm); and it was giving me error decoder-decode return false. on images of size bigger than 400kb. so after googling i got new code as answer the old code was not giving me out of memory error on those images but decoder-decode return false, so i choosed new code. any one guide me what is the solution and which is the best approach to display live images?

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  • drupal using node.save with XMLRPC call to another site. "Access Denied" message

    - by EricP
    I have a piece of code on 1 drupal site to create a node another drupal site in a multi-site setup. It looks like I'm getting the sessionid and logging in just fine, but when trying to create a "page" node, I get "Access denied". Under Services - Settings I have "Key Authentication", "Use keys" is unchecked, and "Use sessid" is checked. Below is my code: <p>Test Page 1</p> <? $url = 'http://drupal2.dev/xmlrpc.php'; ?> <? $conn = xmlrpc($url, 'system.connect'); print_r($conn); ?> <p>--</p> <? $login = xmlrpc($url, 'user.login', $conn['sessid'], 'superuser_name', 'superuser_password'); print_r($login); ?> <p>--</p> <? $data=array('type'=>'page', 'title'=>'Test', 'body'=>'test'); $data_s=serialize($data); $result = xmlrpc($url, 'node.save', $login['sessid'], $data_s); echo $result; //echo $data_s; ?> <? if($error = xmlrpc_error()){ if($error->code > 0){ $error->message = t('Outgoing HTTP request failed because the socket could not be opened.'); } drupal_set_message(t('Operation failed because the remote site gave an error: %message (@code).', array( '%message' => $error->message, '@code' => $error->code ) ) ); } ?> thanks for the help.

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  • Get variables in c# from ajax call

    - by fzshah76
    I've got an Ajax call for log in here is the code: //if MOUSE class is clicked $('.mouse').click(function () { //get the form to submit and return a message //how to call the function var name = $('#name').val(); var pwd2 = $('#pwd2').val(); $.ajax({ type:"POST", url: "http://localhost:51870/code/Login.aspx", data: "{ 'name':'" + $('#name').val() + "', 'pwd':'" + $('#pwd2').val() + "' }", contentType: "application/json; charset=utf-8", dataType: "json", context: document.body, success: function () { //$(this).addClass("done"); $(this).hide(); $('.mouse, .window').hide(); } }); }); the problem is I can't seem to catch name and pwd variables in Login page's preinit event or page load event here is the code in c#: protected void Page_PreInit(object sender, EventArgs e) { //taking javascript argument in preinit event //from here I'll have to build the page for specific lookbook var name = Request.QueryString["name"]; var pwd = Request.QueryString["pwd"]; } protected void Page_Load(object sender, EventArgs e) { var name = Request.QueryString["name"]; var pwd = Request.QueryString["pwd"]; SignIn(name); } I can't seem to get username name and password in c# side, help is appreciated. Here is my final javascript code c# code remains the same: <script type="text/javascript"> $(document).ready(function () { //if MOUSE class is clicked $('.mouse').click(function () { var name = $('#name').val(); var pwd = $('#pwd').val(); $.ajax({ url: "http://localhost:51870/code/Login.aspx?name="+ name +"&pwd="+pwd, context: document.body, success: function () { //$(this).addClass("done"); $(this).hide(); $('.mouse, .window').hide(); } }); }); }); </script> Thanks Zachary

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  • Generating scala AST for recursive method.

    - by scout
    I am generating the scala AST using the following code: val setting = new Settings(error) val reporter = new ConsoleReporter(setting, in, out) { override def displayPrompt = () } val compiler = new Global(setting, reporter) with ASTExtractor{ override def onlyPresentation = true } //setting.PhasesSetting("parser", "parserPhase") val run = new compiler.Run val sourceFiles:List[String] = List("Test.scala") run.compile(sourceFiles.toList) I guess this is the standard code used to run the compiler in the code and generate the AST to work with. The above code worked fine for any valid scala code in Test.scala till now. When I use a recursive function in Test.scala, like def xMethod(x:Int):Int = if(x == 0) -1 else xMethod(x-1) It gives me a java.lang.NullPointerException. The top few lines of the stack trace look like this at scala.tools.nsc.typechecker.Typers$Typer.checkNoDoubleDefsAndAddSynthetics$1(Typers.scala:2170) at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:2196) at scala.tools.nsc.typechecker.Typers$Typer.typedBlock(Typers.scala:1951) at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:3815) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4124) at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4177) at scala.tools.nsc.transform.TailCalls$TailCallElimination.transform(TailCalls.scala:199) The code works fine for a method like def aMethod(c:Int):Int = { bMethod(c) } def bMethod(x:Int):Int = aMethod(x) Please let me know if recursive functions need any other setting.

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  • Usage of ||, OR in PHP

    - by shin
    I have the following code which redirect pages depends on $path. ... $path = $this->uri->segment(3); $pathid = $this->uri->segment(4); if($path=='forsiden'){ redirect('','refresh'); }elseif($path =='contact'){ redirect('welcome/kontakt','refresh'); }elseif($path =='illustration'){ $this->_gallery($path,$pathid); }elseif($path =='webdesign'){ redirect('welcome/webdesign','refresh'); }elseif($path==('web_tjenester' || 'webdesigndetails' || 'vismahjemmeside' || 'joomla' || 'vismanettbutikk' || 'vpasp' || 'artportfolio')){ ... CODE A ... }else{ ... CODE B ... } I am not getting right results with $path==('web_tjenester' || 'webdesigndetails' || 'vismahjemmeside' || 'joomla' || 'vismanettbutikk' || 'vpasp' || 'artportfolio') contact, illustration, gallery and webdesign are redirected and working alright. However all other pages are added CODE A. I am expecting CODE A only when $path is web_tjenester', 'webdesigndetails', 'vismahjemmeside', 'joomla', 'vismanettbutikk', 'vpasp' or 'artportfolio'. Could anyone point out my mistake and correct me please? Thanks in advance. --UPDATE-- The following works, but is there any ways shorten the code? I am repeating ($path==..). elseif(($path=='web_tjenester') || ($path=='webdesigndetails') || ($path=='vismahjemmeside') || ($path=='joomla') || ($path=='vismanettbutikk') || ($path=='vpasp') || ($path=='artportfolio')){

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  • Fluid CSS: float column with overflow

    - by Ates Goral
    I'm using a fluid layout in the new theme that I'm working on for my blog. I often blog about code and include <pre> blocks within the posts. The float: left column for the content area has a max-width so that the column stops at a certain maximum width and can also be shrunk: +----------+ +------+ | text | | text | | | | | | | | | | | | | | | | | | | | | +----------+ +------+ max shrunk What I want is for the <pre> elements to be wider than the text column so that I can fit 80-character-wrapped code without horizontal scroll bars. But I want the <pre> elements to overflow from the content area, without affecting its fluidity: +----------+ +------+ | text | | text | | | | | +----------+--+ +------+------+ | code | | code | +----------+--+ +------+------+ | | | | +----------+ +------+ max shrunk But, max-width stops being fluid once I insert the overhanging <pre> in there: the width of the column remains at the specified max-width even when I shrink the browser beyond that width. I've played around with a bare-minimum scenario to reproduce the problem and noticed that doing either of the following brings back the fluidity: Remove the <pre> (doh...) Remove the float: left The workaround I'm currently using is to insert the <pre> elements into "breaks" in the post column, so that the widths of the post segments and the <pre> segments are managed mutually exclusively: +----------+ +------+ | text | | text | +----------+ +------+ +-------------+ +-------------+ | code | | code | +-------------+ +-------------+ +----------+ +------+ +----------+ +------+ max shrunk But this forces me to insert additional closing and opening <div> elements into the post text which I'd rather keep semantically pristine. Admittedly, I don't have a full grasp of how the box model works with floats with overflowing content, so I don't understand why the combination of float: left on the container and the <pre> inside it cripple the max-width of the container. I'm observing the same problem on Firefox/Chrome/Safari/Opera. IE6 (the crazy one) seems happy all the time. This also doesn't seem dependent on quirks/standards mode.

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  • Latex: Listings with monospace fonts

    - by Nils
    This is what the code looks in Xcode. And this in my listing created with texlive. And yes I used basicstyle=\ttfamily . Having looked at the manual of listings I haven't found anything about fixed-with or monospace fonts.. Example to reproduce \documentclass[ article, a4paper, a4wide, %draft, smallheadings ]{book} % Packages below \usepackage{graphicx} \usepackage{verbatim} % used to display code \usepackage{hyperref} \usepackage{fullpage} \usepackage[ansinew]{inputenc} % german umlauts \usepackage[usenames,dvipsnames]{color} \usepackage{float} \usepackage{subfig} \usepackage{tikz} \usetikzlibrary{calc,through,backgrounds} \usepackage{fancyvrb} \usepackage{acronym} \usepackage{amsthm} % Uuhhh yet another package \VerbatimFootnotes % Required, otherwise verbatim does not work in footnotes! \usepackage{listings} \definecolor{Brown}{cmyk}{0,0.81,1,0.60} \definecolor{OliveGreen}{cmyk}{0.64,0,0.95,0.40} \definecolor{CadetBlue}{cmyk}{0.62,0.57,0.23,0} \definecolor{lightlightgray}{gray}{0.9} \begin{document} \lstset{ language=C, % Code langugage basicstyle=\ttfamily, % Code font, Examples: \footnotesize, \ttfamily keywordstyle=\color{OliveGreen}, % Keywords font ('*' = uppercase) commentstyle=\color{gray}, % Comments font numbers=left, % Line nums position numberstyle=\tiny, % Line-numbers fonts stepnumber=1, % Step between two line-numbers numbersep=5pt, % How far are line-numbers from code backgroundcolor=\color{lightlightgray}, % Choose background color frame=none, % A frame around the code tabsize=2, % Default tab size captionpos=b, % Caption-position = bottom breaklines=true, % Automatic line breaking? breakatwhitespace=false, % Automatic breaks only at whitespace? showspaces=false, % Dont make spaces visible showtabs=false, % Dont make tabls visible columns=flexible, % Column format morekeywords={__global__, __device__}, % CUDA specific keywords } \begin{lstlisting} As[threadRow][threadCol] = A[ threadCol + threadRow * Awidth // Adress of the thread in the current block + i * BLOCK_SIZE // Pick a block further left for i+1 + blockRow * BLOCK_SIZE * Awidth // for blockRow +1 go one blockRow down ]; \end{lstlisting} \end{document}

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  • C# Find and Replace RegEx with wildcard search and addition of value

    - by fraXis
    Hello, The below code is from my other questions that I have asked here on SO. Everyone has been so helpful and I almost have a grasp with regards to RegEx but I ran into another hurdle. This is what I basically need to do in a nutshell. I need to take this line that is in a text file that I load into my content variable: X17.8Y-1.Z0.1G0H1E1 I need to do a wildcard search for the X value, Y value, Z value, and H value. When I am done, I need this written back to my text file (I know how to create the text file so that is not the problem). X17.8Y-1.G54G0T2 G43Z0.1H1M08 I have code that the kind users here have given me, except I need to create the T value at the end of the first line, and use the value from the H and increment it by 1 for the T value. For example: X17.8Y-1.Z0.1G0H5E1 would translate as: X17.8Y-1.G54G0T6 G43Z0.1H5M08 The T value is 6 because the H value is 5. I have code that does everything (does two RegEx functions and separates the line of code into two new lines and adds some new G values). But I don't know how to add the T value back into the first line and increment it by 1 of the H value. Here is my code: StreamReader reader = new StreamReader(fDialog.FileName.ToString()); string content = reader.ReadToEnd(); reader.Close(); content = Regex.Replace(content, @"X[-\d.]+Y[-\d.]+", "$0G54G0"); content = Regex.Replace(content, @"(Z(?:\d*\.)?\d+)[^H]*G0(H(?:\d*\.)?\d+)\w*", "\nG43$1$2M08"); //This must be created on a new line This code works great at taking: X17.8Y-1.Z0.1G0H5E1 and turning it into: X17.8Y-1.G54G0 G43Z0.1H5M08 but I need it turned into this: X17.8Y-1.G54G0T6 G43Z0.1H5M08 (notice the T value is added to the first line, which is the H value +1 (T = H + 1). Can someone please modify my RegEx statement so I can do this automatically? I tried to combine my two RegEx statements into one line but I failed miserably. Thanks so much, Shawn

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  • iText PDFReader Extremely Slow To Open

    - by Wbmstrmjb
    I have some code that combines a few pages of acro forms (with acrofields in tact) and then at the end writes some JS to the entire document. It is the PdfReader in the function adding the JS that is taking extremely long to instantiate (about 12 seconds for a 1MB file). Here is the code (pretty simple): public static byte[] AddJavascript(byte[] document, string js) { PdfReader reader = new PdfReader(new RandomAccessFileOrArray(document), null); MemoryStream msOutput = new MemoryStream(); PdfStamper stamper = new PdfStamper(reader, msOutput); PdfWriter writer = stamper.Writer; writer.AddJavaScript(js); stamper.Close(); reader.Close(); byte[] withJS = msOutput.GetBuffer(); return withJS; } I have benchmarked the above and the line that is slow is the first one. I have tried reading it from a file instead of memory and tried using a MemoryStream instead of the RandomAccessFileOrArray. Nothing makes it any faster. If I add JS to a single page document, it is very fast. So my thought is that the code that combines the pages is somehow making the PDF slow to read for the PdfReader. Here is the combine code: public static byte[] CombineFiles(List<byte[]> sourceFiles) { MemoryStream output = new MemoryStream(); PdfCopyFields copier = new PdfCopyFields(output); try { output.Position = 0; foreach (var fileBytes in sourceFiles) { PdfReader fileReader = new PdfReader(fileBytes); copier.AddDocument(fileReader); } } catch (Exception exception) { //throw } finally { copier.Close(); } byte[] concat = output.GetBuffer(); return concat; } I am using PdfCopyFields because I need to preserve the form fields and so cannot use the PdfCopy or PdfSmartCopy. This combine code is very fast (few ms) and produces working documents. The AddJS code above is called after it and the PdfReader open is the slow piece. Any ideas?

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  • HTML5 for IE6.0

    - by marharépa
    Hello! Do you know any method to optimize this HTML Code to IE6 or 7 (or 8) without adding any HTML elements, or the IE is skipping all the HTML5 elements? If i just want to format elements with CSS, - i dont want to use other features - is the document.createElement("nav") DOM element create enough to scam IE and make a plain HTML document? <!DOCTYPE HTML> <head> <meta charset="UTF-8"> <title>title</title> <link type="text/css" rel="stylesheet" href="reset.css"> <link type="text/css" rel="stylesheet" href="style.css"> </head> <body> <header>code of header</header> <nav> code of nav </nav> <section> code of gallery </section> <article> code of article </article> <footer>code of footer</footer> </body> </html> Thank you.

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  • Multi-base conversion - using all combinations for URL shortener

    - by Guffa
    I am making an URL shortener, and I am struggling with the optimal way of encoding a number (id) into a character string. I am using the characters 0-9,A-Z,a-z so it will basically be a base-62 encoding. That is pretty basic, but it doesn't make use of all possible codes. The codes that it would produce would be: 0, 1, ... y, z, 10, 11, ... zy, zz, 100, 101, ... Notice that the codes 00 to 0z is not used, the same for 000 to 0zz, and so on. I would like to use all the codes, like this: 0, 1, ... y, z, 00, 01, ... zy, zz, 000, 001, ... It would be some combination of base-62 and base-63, with different bases depending on the position... Using base-62 is easy, for example: create procedure tiny_GetCode @UrlId int as set nocount on declare @Code varchar(10) set @Code = '' while (@UrlId > 0 or len(@Code) = 0) begin set @Code = substring('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', @UrlId % 62 + 1, 1) + @Code set @UrlId = @UrlId / 62 end select @Code But I haven't yet managed to make a multi-base conversion out of it, to make use of all the codes.

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  • Locking a table for getting MAX in LINQ

    - by Hossein Margani
    Hi Every one! I have a query in LINQ, I want to get MAX of Code of my table and increase it and insert new record with new Code. just like the IDENTITY feature of SQL Server, but here my Code column is char(5) where can be alphabets and numeric. My problem is when inserting a new row, two concurrent processes get max and insert an equal Code to the record. my command is: var maxCode = db.Customers.Select(c=>c.Code).Max(); var anotherCustomer = db.Customers.Where(...).SingleOrDefault(); anotherCustomer.Code = GenerateNextCode(maxCode); db.SubmitChanges(); I ran this command cross 1000 threads and each updating 200 customers, and used a Transaction with IsolationLevel.Serializable, after two or three execution an error occured: using (var db = new DBModelDataContext()) { DbTransaction tran = null; try { db.Connection.Open(); tran = db.Connection.BeginTransaction(IsolationLevel.Serializable); db.Transaction = tran; . . . . tran.Commit(); } catch { tran.Rollback(); } finally { db.Connection.Close(); } } error: Transaction (Process ID 60) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. other IsolationLevels generates this error: Row not found or changed. Please help me, thank you.

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  • PHP Simple DOM Parser

    - by Junior Coder
    Hi guys I'm using this wonderful class here to do a bit of code embed filtering: http://simplehtmldom.sourceforge.net/. It extends the PHP DOM document class. Pretty much what I am doing is parsing a string through this class that contains embed code, i grab the unique bits of information eg id, width, height send through a handler function which inserts the id, width, height etc into my predefined "safe" template and reinsert my safe template in the place of the embed code the user has put in. May seem a backward way of doing it but it's the way it has to be done :) All of that works fine. Problem is when there is more than just embed code contained in the string, as I can't just replace the embed code i can only replace the entire string which wipes the rest of the tags etc string. For example if there were a p tag that would be wiped. So my question is how using this class can i just replace the certain part of the string? Spent the last few days trying to work this out and need some more input. It appears the class can do this so i'm stumped. Here's a basic version of what i have so far :) // load the class $html = new simple_html_dom(); // load the entire string containing everything user entered here $return = $html->load($string); // check for embed tags if($html->find('embed') == true { foreach($html->find('embed') as $element) { // send it off to the function which returns a new safe embed code $element = create_new_embed($parameters); // this is where i somehow i need to save the changes and send it back to $return } } Any input would be gratefully appreciated. If i have explained my problem well enough please let me know :)

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  • Constant error in compiler using C#'s provided objects

    - by dotnetdev
    I have used the built in C# methods to write a compiler, like the following: CodeDomProvider codeProvider = CodeDomProvider.CreateProvider("CSharp"); string Output = "Out.exe"; Button ButtonObject = (Button)sender; this.RadTextBox1.Text = string.Empty; System.CodeDom.Compiler.CompilerParameters parameters = new CompilerParameters(); //Make sure we generate an EXE, not a DLL parameters.GenerateExecutable = true; parameters.OutputAssembly = Output; CompilerResults results = codeProvider.CompileAssemblyFromSource(parameters, RadTextBox1.Text); if (results.Errors.Count > 0) { RadTextBox2.ForeColor = Color.Red; foreach (CompilerError CompErr in results.Errors) { RadTextBox2.Text = RadTextBox2.Text + "Line number " + CompErr.Line + ", Error Number: " + CompErr.ErrorNumber + ", '" + CompErr.ErrorText + ";" + Environment.NewLine + Environment.NewLine; } } else { //Successful Compile RadTextBox2.ForeColor = Color.Blue; Guid guid = Guid.NewGuid(); string PathToExe = Server.MapPath(Path.Combine(@"\Compiled" , Output)); FileStream fs = System.IO.File.Create(PathToExe); using (StreamWriter sw = new StreamWriter(fs)) { sw.Write(RadTextBox1.Text); } Response.WriteFile(PathToExe); When I run this code and write a Main method (such as the code sample in http://msdn.microsoft.com/en-us/library/ms228506(VS.80).aspx, I get this error: Line number 0, Error Number: CS5001, 'Program 'c:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\Out.exe' does not contain a static 'Main' method suitable for an entry point; The code above is used as the basis of a compiler on my site (not yet live). So you type in code and generate an .exe assembly. But when I enter code into the textbox for code writing (Radtextbox1), even with a main method, I get the error. What gives? Thanks

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