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  • Mysql loses its root password

    - by RubyDev
    I am having a strange problem, my mysql loses/resets the root password automatically. By which I mean that it resets it to none. It has happened twice this month. I am worried that it can be a security issue as data is open waiting only for someone trying no password! Here is the version: mysql --version mysql Ver 14.14 Distrib 5.1.56, for redhat-linux-gnu (i386) using readline 5.1 Any help would be appreciated. Update: Output of select user, host, password from mysql.user; how it looks after the password got reset | root | localhost | | root | 127.0.0.1 | | | localhost | | | admin | localhost | ################################# | (I have removed the actual output with #) So all the passwords are blank, except for for another user named 'admin'

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  • IIS 7.5 401.3 Access Denied

    - by Jeffrey
    I am having this weird issue with IIS 7.5 on Windows 2008 R2 x64. I created a site in IIS and manually created a test file index.html and everything worked. When I try to do a deployment, I copy all the files from my local PC to the IIS server, try to access index.html (this is the proper deployed file) and getting 401.3 access denied error. I then try to manually recreate index.html and copy content into this newly created file and the page is accessible again... I just can't figure this out. So the issue is that IIS 7.5 can't server files that have been copied from other PCs. I tried to reset/apply permission settings to the copied folders/files but nothing has worked. Please help. Thanks! By the way, the files that I copied are just some html cutups i.e. generic html, css and image files, nothing special.

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  • Mysql loses its root password

    - by RubyDev
    I am having a strange problem, my mysql loses/resets the root password automatically. By which I mean that it resets it to none. It has happened twice this month. I am worried that it can be a security issue as data is open waiting only for someone trying no password! Here is the version: mysql --version mysql Ver 14.14 Distrib 5.1.56, for redhat-linux-gnu (i386) using readline 5.1 Any help would be appreciated. Update: Output of select user, host, password from mysql.user; how it looks after the password got reset | root | localhost | | root | 127.0.0.1 | | | localhost | | | admin | localhost | ################################# | (I have removed the actual output with #) So all the passwords are blank, except for for another user named 'admin'

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  • Is it possible for a router to "go bad" with time?

    - by JQAn
    I've been having problems with my internet connection over the past weeks (intermittent disconnections, slow transfers, etc), and my provider keeps telling me that the problem is not on their end. I have cablemodem with a wifi router (this router was not provided by them). The router is quite old (DIR-300), so I'm starting to wonder if it could be the issue and if I should replace it. Is it possible that it is the cause? Can they become so outdated that they cause intermittent interruptions of service? If I reset the modem and the router, they work fine for a few hours, but the problems starts again after a while.

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  • Getting rejected value null spring validation

    - by Shabarinath
    Hi in my project when I am trying to validate my form its not showing any error messages even if validation fails (Event Form is not submitted and enters into validation fail block) Here is my code /****************** Post Method *************/ @RequestMapping(value="/property", method = RequestMethod.POST) public String saveOrUpdateProperty(@ModelAttribute("property") Property property, BindingResult result, Model model, HttpServletRequest request) throws Exception { try { if(validateFormData(property, result)) { model.addAttribute("property", new Property()); return "property/postProperty"; } } /********* Validate Block *************/ private boolean validateFormData(Property property, BindingResult result) throws DaoException { if (property.getPropertyType() == null || property.getPropertyType().equals("")) { result.rejectValue("propertyType", "Cannot Be Empty !", "Cannot Be Empty !"); } if (property.getTitle() == null || property.getTitle().equals("")) { result.rejectValue("title", "Cannot Be Empty !", "Cannot Be Empty !"); } return (result.hasFieldErrors() || result.hasErrors()); } But when i debug i can see below one org.springframework.validation.BeanPropertyBindingResult: 1 errors Field error in object 'property' on field 'title': rejected value [null]; codes [Cannot Be Empty !.property.title,Cannot Be Empty !.title,Cannot Be Empty !.java.lang.String,Cannot Be Empty !]; arguments []; default message [Cannot Be Empty !] and this is how i am displaying in jsp file <div class="control-group"> <div class="controls"> <label class="control-label"><span class="required">* </span>Property Type</label> <div class="controls"> <form:input path="title" placeholder="Pin Code" cssClass="form-control border-radius-4 textField"/> <form:errors path="title" style="color:red;"/> </div> </div> </div> Event though when i see the below one when i debug (1 Error its correct) org.springframework.validation.BeanPropertyBindingResult: 1 errors Why it is not displayed in jsp can any one hep me?

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  • boost::function & boost::lambda - call site invocation & accessing _1 and _2 as the type

    - by John Dibling
    Sorry for the confusing title. Let me explain via code: #include <string> #include <boost\function.hpp> #include <boost\lambda\lambda.hpp> #include <iostream> int main() { using namespace boost::lambda; boost::function<std::string(std::string, std::string)> f = _1.append(_2); std::string s = f("Hello", "There"); std::cout << s; return 0; } I'm trying to use function to create a function that uses the labda expressions to create a new return value, and invoke that function at the call site, s = f("Hello", "There"); When I compile this, I get: 1>------ Build started: Project: hacks, Configuration: Debug x64 ------ 1>Compiling... 1>main.cpp 1>.\main.cpp(11) : error C2039: 'append' : is not a member of 'boost::lambda::lambda_functor<T>' 1> with 1> [ 1> T=boost::lambda::placeholder<1> 1> ] Using MSVC 9. My fundamental understanding of function and lambdas may be lacking. The tutorials and docs did not help so far this morning. How do I do what I'm trying to do?

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  • How to efficiently get highest & lowest values from a List<double?>, and then modify them?

    - by DaveDev
    I have to get the sum of a list of doubles. If the sum is 100, I have to decrement from the highest number until it's = 100. If the sum is < 100, I have to increment the lowest number until it's = 100. I can do this by looping though the list, assigning the values to placeholder variables and testing which is higher or lower but I'm wondering if any gurus out there could suggest a super cool & efficient way to do this? The code below basically outlines what I'm trying to achieve: var splitValues = new List<double?>(); splitValues.Add(Math.Round(assetSplit.EquityTypeSplit() ?? 0)); splitValues.Add(Math.Round(assetSplit.PropertyTypeSplit() ?? 0)); splitValues.Add(Math.Round(assetSplit.FixedInterestTypeSplit() ?? 0)); splitValues.Add(Math.Round(assetSplit.CashTypeSplit() ?? 0)); var listSum = splitValues.Sum(split => split.Value); if (listSum != 100) { if (listSum > 100) { // how to get highest value and decrement by 1 until listSum == 100 // then reassign back into the splitValues list? var highest = // ?? } else { // how to get lowest where value is > 0, and increment by 1 until listSum == 100 // then reassign back into the splitValues list? var lowest = // ?? } } update: the list has to remain in the same order as the items are added.

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  • Error using maven profiles

    - by user3127896
    I've added two profiles to my application and that how it looks: <profiles> <profile> <id>dev</id> <properties> <db.username>root</db.username> <db.password>root</db.password> <db.connectionURL>localhost:3306</db.connectionURL> <db.driverClass>com.mysql.jdbc.Driver</db.driverClass> </properties> </profile> <profile> <id>prod</id> <properties> <db.username>prodroot</db.username> <db.password>prodpass</db.password> <db.connectionURL>localhost:3306</db.connectionURL> <db.driverClass>com.mysql.jdbc.Driver</db.driverClass> </properties> </profile> </profiles> In my jdbc.properties file i changed values like this: jdbc.driverClassName=${db.driverClass} jdbc.dialect=org.hibernate.dialect.MySQLDialect jdbc.databaseurl=jdbc:mysql://${db.connectionURL}/dbname jdbc.username=${db.username} jdbc.password=${db.password} And here's bean from spring-container.xml <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" p:driverClassName="${jdbc.driverClassName}" p:url="${jdbc.databaseurl}" p:username="${jdbc.username}" p:password="${jdbc.password}" /> When i try to deploy my application i got following error: SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'dataSource' defined in ServletContext resource [/WEB-INF/spring-servlet.xml]: Could not resolve placeholder 'db.driverClass' Structure of project: Any ideas what i'm doing wrong? Thanks in advance!

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  • Ctrl-t / New-Tab in Internet Explorer 11 on Windows 8.1 Pro Doesn't Work

    - by Atlscrog
    Steps: Open IE on the desktop. Observe that home page opened. Click around (or not) and observe IE works. Either type ctrl-t or click on the new tab area next to current tab. Observe no new tab opens and the current page is now blank. At this point IE is inoperable and requires a restart. It seems to work fine in the Metro interface. I have reset the Internet Options and removed and re-added Internet Explorer under "Turn Windows Features on or off". Help :) Windows 8.1 Pro, 64-bit IE 11 AMD Phenom II X2 560 3.30 GHz 8 GB RAM

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  • FineUploader multiple instances and dynamic naming

    - by RichieMN
    I am using FineUploader 4.0.8 within a MVC4 project using the jquery wrapper. Here is an example of my js code that creates a single instance of the fineUploader and is working just fine. At this time, I have the need for more than one instance of fineUploader, but each individual control doesn't know anything about the other and they're rendered as needed on a page (I've seen previous questions using a jQuery .each, which won't work here). Currently, I can't seem to correctly render any upload buttons, probably due to having an ID duplicated or something. See below for how I'm using MVC's Razor to create unique variables and html IDs for that individual instance. Here's my current implementation where I've added the dynamic values (places where you see _@Model.{PropertyName}): // Uploader control setup var [email protected] = $('#[email protected]').fineUploader({ debug: true, template: '[email protected]', button: $("#[email protected]"), request: { endpoint: '@Url.Action("UploadFile", "Survey")', customHeaders: { Accept: 'application/json' }, params: { [email protected]: (function () { return instance; }), [email protected]: (function () { return surveyItemResultId; }), [email protected]: (function () { return itemId; }), [email protected]: (function () { return loopingCounter++; }) } }, validation: { acceptFiles: ['image/*', 'application/xls', 'application/pdf', 'text/csv', 'application/vnd.openxmlformats-officedocument.spreadsheetml.template', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'application/vnd.ms-excel'], allowedExtensions: ['jpeg', 'jpg', 'gif', 'png', 'bmp', 'csv', 'xls', 'xlsx', 'pdf', 'xlt', 'xltx', 'txt'], sizeLimit: 1024 * 1024 * 2.5, // 2.5MB stopOnFirstInvalidFile: false }, failedUploadTextDisplay: { mode: 'custom' }, multiple: true, text: { uploadButton: 'Select your upload file(s)' } }).on('submitted', function (event, id, filename) { $("#modal-overlay").fadeIn(); $("#modal-box").fadeIn(); [email protected]++; $(':input[type=button], :input[type=submit], :input[type=reset]').attr('disabled', 'disabled'); }).on('complete', function (event, id, filename, responseJSON) { [email protected]++; if ([email protected] == [email protected]) { $(':input[type=button], :input[type=submit], :input[type=reset]').removeAttr('disabled'); //$("#overlay").fadeOut(); $("#modal-box").fadeOut(); $("#modal-overlay").fadeOut(); } }).on('error', function (event, id, name, errorReason, xhr) { //$("#overlay").fadeOut(); alert('error: ' + errorReason); $("#modal-box").fadeOut(); $("#modal-overlay").fadeOut(); }); }); Using the same principle as above, I've added this logic to the template too. Here's part of my template: <script type="text/template" id="[email protected]"> <div class="qq-uploader-selector qq-uploader"> <div class="qq-upload-drop-area-selector qq-upload-drop-area qq-hide-dropzone"> <span>Drop files here to upload</span> What I see when I use the above code is only the drag and drop section visible, and no button. There are no js errors either. I do have an example that only has one instance of this control on it and the results are the same visible drag and drop section and no button). Any thought as to what's going on? I'll gladly update the question if you find I'm missing something helpful. Please don't just -1 me if it's something I can easily improve or fix.

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  • How to create a class by reading from another class (.cs) file with Powershell?

    - by Razcer
    I have this POGO ( simple putter getter) class that I am trying to read in PowerShell using System; using System.Runtime.Serialization; namespace MyApp.VM { [Serializable] public class MyClassVM { public Int64 CtrId { get; set; } public string CtrName { get; set; } public string CtrPhone { get; set; } public string CtrZip { get; set; } public DateTime AddDate { get; set; } } } Here is the ps1 code that is trying to read the class from a file. function Build-Pogo { $FileDir = "D:\YourDirectoryOfPogo" $ClassName = "MyClassVM" $FileName = $FileDir + "\" + $ClassName + ".cs" # Build the class from the file $AllLines = [string]::join([environment]::newline, (Get-Content $FileName)) Add-Type -TypeDefinition $AllLines # spin thru each property for class $ClassHandle = New-Object -typeName $ClassName $ClassHandle | ForEach-Object {Write-Host $_.name -foregroundcolor cyan} } *Note the last line is placeholder for more complex logic to come later. This breaks at the Add-Type with this error message for each get/set in the file. 'MyApp.VM.MyClassVM.CtrId.get' must declare a body because it is not marked abstract or extern Any info on what I'm doing wrong will be greatly appreciated.

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  • Entire folders deleted from My Documents periodically with remote logins

    - by darron
    I've got a customer who thinks our application is constantly deleting all it's data. It's really becoming a major problem for them. The problem is, there's no way it's us. They are losing not only our entire data folder (which we locate in the user's "My Documents" folder to make it easy to find), but some local settings files which are in entirely different places within the general user profile. It REALLY looks like the entire user is either getting reset, or is somehow synchronizing with a more... blank profile somewhere else. They're running this on some kind of virtualized Citrix guest OS. I see references to a "group policy folder redirection" that could do this... maybe roaming profiles? Any ideas? Help!

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  • PHP session token can be used multipletimes?

    - by kornesh
    I got page A which is a normal HTML page and page which is an AJAX response page. And I want to prevent CSRF attacks by tokens. Lets say I use this method for an autocomplete form, is it possible to use same token multiple times (of course the session is only set one time) because i tired this method but the validation keep failing after the first suggestion (obviously the token has changed, somehow) page A <?php session_start(); $token = md5(uniqid(rand(), TRUE)); $_SESSION['token'] = $token; ?> <input id="token" value="<?php echo $token; ?>" type="hidden"></input> <input id="autocomplete" placeholder="Type something"></input> .... The form is autosubmitted every time theres a change using Jquery. page B <?php session_start(); if($_REQUEST['token'] == $_SESSION['token']){ echo 'Im working fine'; } ?>

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  • How would you rewrite/refactor this ?

    - by frostings
    Old application that is used by 50-60.000 paying customers. Company is several hundred people big. Application has a lot of business critical code (30% of all code) written in classic asp. Application has a lot more .net code. Application has a COM+ bridge for enabling asp to "talk" to .net Organization lacks some/a lot knowledge on what is causing the 10-20% server-reset per day (might be due to COM+ ?) There is no red line through the application; no architecture, no real patterns etc. The application has been like this for at least 5 years. The asp code base is increasing, slowly but certainly. I have read refactoring stories and I have knowledge on why you some of the times should not re-write a system. I would love for the old asp code to vanish as well as the COM+ component. But the pain is that no one really knows what is going on inside the asp classic code and the attitude inside all the teams are "this is just how it is". Down the line, this causes a lot of other issues like recruiting, dev effeciency, business needs that cannot be met, scale etc. With these little facts, does that justify a re-write of the asp code and the removal of the COM+ component ? How would you go about it ?

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  • How To Restore Firefox Options To Default Without Uninstalling

    - by Gopinath
    Firefox plugins are awesome and they are the pillars for the huge success of Firefox browser. Plugins vary from simple ones like changing color scheme of the browser to powerful ones likes changing the behavior of the browser itself. Recently I installed one of the powerful Firefox plugins and played around to tweak the behavior of the browser. At the end of my half an hour play, Firefox has completely become useless and stopped rending web pages properly. To continue using Firefox I had to restore it to default settings. But I don’t like to uninstall and then install it again as it’s a time consuming process and also I’ll loose all the plugins I’m using. How did I restore the default settings in a single click? Default Settings Restore Through Safe Mode Options It’s very easy to restore default settings of Firefox with the safe mode options. All we need to do is 1.  Close all the Firefox browser windows that are open 2. Launch Firefox in safe mode 3. Choose the option Reset all user preferences to Firefox defaults 4. Click on Make Changes and Restart button. Note: When Firefox restore the default settings, it erases all the stored passwords, browser history and other settings you have done. That’s all. This excellent feature of Firefox saved me from great pain and hope it’s going to help you too. Join us on Facebook to read all our stories right inside your Facebook news feed.

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  • How To Restore Firefox Options To Default Without Uninstalling

    - by Gopinath
    Firefox plugins are awesome and they are the pillars for the huge success of Firefox browser. Plugins vary from simple ones like changing color scheme of the browser to powerful ones likes changing the behavior of the browser itself. Recently I installed one of the powerful Firefox plugins and played around to tweak the behavior of the browser. At the end of my half an hour play, Firefox has completely become useless and stopped rending web pages properly. To continue using Firefox I had to restore it to default settings. But I don’t like to uninstall and then install it again as it’s a time consuming process and also I’ll loose all the plugins I’m using. How did I restore the default settings in a single click? Default Settings Restore Through Safe Mode Options It’s very easy to restore default settings of Firefox with the safe mode options. All we need to do is 1.  Close all the Firefox browser windows that are open 2. Launch Firefox in safe mode 3. Choose the option Reset all user preferences to Firefox defaults 4. Click on Make Changes and Restart button. Note: When Firefox restore the default settings, it erases all the stored passwords, browser history and other settings you have done. That’s all. This excellent feature of Firefox saved me from great pain and hope it’s going to help you too. Join us on Facebook to read all our stories right inside your Facebook news feed.

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  • add_shown & add_hiding ModalPopupExtender Events

    - by Yousef_Jadallah
        In this topic, I’ll discuss the Client events we usually need while using ModalPopupExtender. The add_shown fires when the ModalPopupExtender had shown and add_hiding fires when the user cancels it by CancelControlID,note that it fires before hiding the modal. They are useful in many cases, for example may you need to set focus to specific Textbox when the user display the modal, or if you need to reset the controls values inside the Modal after it has been hidden. To declare Client event either in pageLoad javascript function or you can attach the function by Sys.Application.add_load like this: Sys.Application.add_load(modalInit); function modalInit() { var modalPopup = $find('mpeID'); modalPopup.add_hiding(onHiding); } function onHiding(sender, args) { } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   I’ll use the first way in the current example. So lets start with the illustration:   1- In this example am using simple panel which contain UserName and Password Textboxes besides submit and cancel buttons, this Panel will be used as PopupControlID in the ModalPopupExtender : <asp:Panel ID="panModal" runat="server" Height="180px" Width="300px" style="display:none" CssClass="ModalWindow"> <table width="100%" > <tr> <td> User Name </td> <td> <asp:TextBox ID="txtName" runat="server"></asp:TextBox> </td> </tr> <tr> <td> Password </td> <td> <asp:TextBox ID="txtPassword" runat="server" TextMode="Password"></asp:TextBox> </td> </tr> </table> <br /> <asp:Button ID="btnSubmit" runat="server" Text="Submit" /> <asp:Button ID="btnCancel" runat="server" Text="Cancel" /> </asp:Panel>   You can use this simple style for the Panel : <style type="text/css"> .ModalWindow { border: solid; border-width:3px; background:#f0f0f0; } </style> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   2- Create the view button (TargetControlID) as you know this contain the ID of the element that activates the modal popup: <asp:Button ID="btnView" runat="server" Text="View" /> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   3-Add the ModalPopupExtender ,moreover don’t forget to add the ScriptManager: <asp:ScriptManager ID="ScriptManager1" runat="server"/> <cc1:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="btnView" PopupControlID="panModal" CancelControlID="btnCancel"/> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }     4-In the pageLoad javascript function inside add_shown event set the focus on the txtName , and inside add_hiding reset the two Textboxes. <script language="javascript" type="text/javascript"> function pageLoad() { $find('ModalPopupExtender1').add_shown(function() { alert('add_shown event fires'); $get('<%=txtName.ClientID%>').focus();   });   $find('ModalPopupExtender1').add_hiding(function() { alert('add_hiding event fires'); $get('<%=txtName.ClientID%>').value = ""; $get('<%=txtPassword.ClientID%>').value = "";   }); }   </script> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   I’ve added the two alerts just to let you show when the event fires.   Hope this simple example show you the benefit and how to use these events.

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  • Novo Suporte para Combinação e Minificação de Arquivos JavaScript e CSS (Série de posts sobre a ASP.NET 4.5)

    - by Leniel Macaferi
    Este é o sexto post de uma série de posts que estou escrevendo sobre a ASP.NET 4.5. Os próximos lançamentos do .NET e Visual Studio incluem vários novos e ótimos recursos e capacidades. Com a ASP.NET 4.5 você vai ver um monte de melhorias realmente emocionantes em formulários da Web ( Web Forms ) e MVC - assim como no núcleo da base de código da ASP.NET, no qual estas tecnologias são baseadas. O post de hoje cobre um pouco do trabalho que estamos realizando para adicionar suporte nativo para combinação e minificação de arquivos JavaScript e CSS dentro da ASP.NET - o que torna mais fácil melhorar o desempenho das aplicações. Este recurso pode ser utilizado por todas as aplicações ASP.NET, incluindo tanto a ASP.NET MVC quanto a ASP.NET Web Forms. Noções básicas sobre Combinação e Minificação Como mais e mais pessoas usando dispositivos móveis para navegar na web, está se tornando cada vez mais importante que os websites e aplicações que construímos tenham um bom desempenho neles. Todos nós já tentamos carregar sites em nossos smartphones - apenas para, eventualmente, desistirmos em meio à frustração porque os mesmos são carregados lentamente através da lenta rede celular. Se o seu site/aplicação carrega lentamente assim, você está provavelmente perdendo clientes em potencial por causa do mau desempenho/performance. Mesmo com máquinas desktop poderosas, o tempo de carregamento do seu site e o desempenho percebido podem contribuir enormemente para a percepção do cliente. A maioria dos websites hoje em dia são construídos com múltiplos arquivos de JavaScript e CSS para separar o código e para manter a base de código coesa. Embora esta seja uma boa prática do ponto de vista de codificação, muitas vezes isso leva a algumas consequências negativas no tocante ao desempenho geral do site. Vários arquivos de JavaScript e CSS requerem múltiplas solicitações HTTP provenientes do navegador - o que pode retardar o tempo de carregamento do site.  Exemplo Simples A seguir eu abri um site local no IE9 e gravei o tráfego da rede usando as ferramentas do desenvolvedor nativas do IE (IE Developer Tools) que podem ser acessadas com a tecla F12. Como mostrado abaixo, o site é composto por 5 arquivos CSS e 4 arquivos JavaScript, os quais o navegador tem que fazer o download. Cada arquivo é solicitado separadamente pelo navegador e retornado pelo servidor, e o processo pode levar uma quantidade significativa de tempo proporcional ao número de arquivos em questão. Combinação A ASP.NET está adicionando um recurso que facilita a "união" ou "combinação" de múltiplos arquivos CSS e JavaScript em menos solicitações HTTP. Isso faz com que o navegador solicite muito menos arquivos, o que por sua vez reduz o tempo que o mesmo leva para buscá-los. A seguir está uma versão atualizada do exemplo mostrado acima, que tira vantagem desta nova funcionalidade de combinação de arquivos (fazendo apenas um pedido para JavaScript e um pedido para CSS): O navegador agora tem que enviar menos solicitações ao servidor. O conteúdo dos arquivos individuais foram combinados/unidos na mesma resposta, mas o conteúdo dos arquivos permanece o mesmo - por isso o tamanho do arquivo geral é exatamente o mesmo de antes da combinação (somando o tamanho dos arquivos separados). Mas note como mesmo em uma máquina de desenvolvimento local (onde a latência da rede entre o navegador e o servidor é mínima), o ato de combinar os arquivos CSS e JavaScript ainda consegue reduzir o tempo de carregamento total da página em quase 20%. Em uma rede lenta a melhora de desempenho seria ainda maior. Minificação A próxima versão da ASP.NET também está adicionando uma nova funcionalidade que facilita reduzir ou "minificar" o tamanho do download do conteúdo. Este é um processo que remove espaços em branco, comentários e outros caracteres desnecessários dos arquivos CSS e JavaScript. O resultado é arquivos menores, que serão enviados e carregados no navegador muito mais rapidamente. O gráfico a seguir mostra o ganho de desempenho que estamos tendo quando os processos de combinação e minificação dos arquivos são usados ??em conjunto: Mesmo no meu computador de desenvolvimento local (onde a latência da rede é mínima), agora temos uma melhoria de desempenho de 40% a partir de onde originalmente começamos. Em redes lentas (e especialmente com clientes internacionais), os ganhos seriam ainda mais significativos. Usando Combinação e Minificação de Arquivos dentro da ASP.NET A próxima versão da ASP.NET torna realmente fácil tirar proveito da combinação e minificação de arquivos dentro de projetos, possibilitando ganhos de desempenho como os que foram mostrados nos cenários acima. A forma como ela faz isso, te permite evitar a execução de ferramentas personalizadas/customizadas, como parte do seu processo de construção da aplicação/website - ao invés disso, a ASP.NET adicionou suporte no tempo de execução/runtime para que você possa executar a combinação/minificação dos arquivos dinamicamente (cacheando os resultados para ter certeza de que a performance seja realmente satisfatória). Isto permite uma experiência de desenvolvimento realmente limpa e torna super fácil começar a tirar proveito destas novas funcionalidades. Vamos supor que temos um projeto simples com 4 arquivos JavaScript e 6 arquivos CSS: Combinando e Minificando os Arquivos CSS Digamos que você queira referenciar em uma página todas as folhas de estilo que estão dentro da pasta "Styles" mostrada acima. Hoje você tem que adicionar múltiplas referências para os arquivos CSS para obter todos eles - o que se traduziria em seis requisições HTTP separadas: O novo recurso de combinação/minificação agora permite que você combine e minifique todos os arquivos CSS da pasta Styles - simplesmente enviando uma solicitação de URL para a pasta (neste caso, "styles"), com um caminho adicional "/css" na URL. Por exemplo:    Isso fará com que a ASP.NET verifique o diretório, combine e minifique os arquivos CSS que estiverem dentro da pasta, e envie uma única resposta HTTP para o navegador com todo o conteúdo CSS. Você não precisa executar nenhuma ferramenta ou pré-processamento para obter esse comportamento. Isso te permite separar de maneira limpa seus estilos em arquivos CSS separados e condizentes com cada funcionalidade da aplicação mantendo uma experiência de desenvolvimento extremamente limpa - e mesmo assim você não terá um impacto negativo de desempenho no tempo de execução da aplicação. O designer do Visual Studio também vai honrar a lógica de combinação/minificação - assim você ainda terá uma experiência WYSWIYG no designer dentro VS. Combinando e Minificando os Arquivos JavaScript Como a abordagem CSS mostrada acima, se quiséssemos combinar e minificar todos os nossos arquivos de JavaScript em uma única resposta, poderíamos enviar um pedido de URL para a pasta (neste caso, "scripts"), com um caminho adicional "/js":   Isso fará com que a ASP.NET verifique o diretório, combine e minifique os arquivos com extensão .js dentro dele, e envie uma única resposta HTTP para o navegador com todo o conteúdo JavaScript. Mais uma vez - nenhuma ferramenta customizada ou etapas de construção foi necessária para obtermos esse comportamento. Este processo funciona em todos os navegadores. Ordenação dos Arquivos dentro de um Pacote Por padrão, quando os arquivos são combinados pela ASP.NET, eles são ordenados em ordem alfabética primeiramente, exatamente como eles são mostrados no Solution Explorer. Em seguida, eles são automaticamente reorganizados de modo que as bibliotecas conhecidas e suas extensões personalizadas, tais como jQuery, MooTools e Dojo sejam carregadas antes de qualquer outra coisa. Assim, a ordem padrão para a combinação dos arquivos da pasta Scripts, como a mostrada acima será: jquery-1.6.2.js jquery-ui.js jquery.tools.js a.js Por padrão, os arquivos CSS também são classificados em ordem alfabética e depois são reorganizados de forma que o arquivo reset.css e normalize.css (se eles estiverem presentes na pasta) venham sempre antes de qualquer outro arquivo. Assim, o padrão de classificação da combinação dos arquivos da pasta "Styles", como a mostrada acima será: reset.css content.css forms.css globals.css menu.css styles.css A ordenação/classificação é totalmente personalizável, e pode ser facilmente alterada para acomodar a maioria dos casos e qualquer padrão de nomenclatura que você prefira. O objetivo com a experiência pronta para uso, porém, é ter padrões inteligentes que você pode simplesmente usar e ter sucesso com os mesmos. Qualquer número de Diretórios/Subdiretórios é Suportado No exemplo acima, nós tivemos apenas uma única pasta "Scripts" e "Styles" em nossa aplicação. Isso funciona para alguns tipos de aplicação (por exemplo, aplicações com páginas simples). Muitas vezes, porém, você vai querer ter múltiplos pacotes/combinações de arquivos CSS/JS dentro de sua aplicação - por exemplo: um pacote "comum", que tem o núcleo dos arquivos JS e CSS que todas as páginas usam, e então arquivos específicos para páginas ou seções que não são utilizados globalmente. Você pode usar o suporte à combinação/minificação em qualquer número de diretórios ou subdiretórios em seu projeto - isto torna mais fácil estruturar seu código de forma a maximizar os benefícios da combinação/minificação dos arquivos. Cada diretório por padrão pode ser acessado como um pacote separado e endereçável através de uma URL.  Extensibilidade para Combinação/Minificação de Arquivos O suporte da ASP.NET para combinar e minificar é construído com extensibilidade em mente e cada parte do processo pode ser estendido ou substituído. Regras Personalizadas Além de permitir a abordagem de empacotamento - baseada em diretórios - que vem pronta para ser usada, a ASP.NET também suporta a capacidade de registrar pacotes/combinações personalizadas usando uma nova API de programação que estamos expondo.  O código a seguir demonstra como você pode registrar um "customscript" (script personalizável) usando código dentro da classe Global.asax de uma aplicação. A API permite que você adicione/remova/filtre os arquivos que farão parte do pacote de maneira muito granular:     O pacote personalizado acima pode ser referenciado em qualquer lugar dentro da aplicação usando a referência de <script> mostrada a seguir:     Processamento Personalizado Você também pode substituir os pacotes padrão CSS e JavaScript para suportar seu próprio processamento personalizado dos arquivos do pacote (por exemplo: regras personalizadas para minificação, suporte para Saas, LESS ou sintaxe CoffeeScript, etc). No exemplo mostrado a seguir, estamos indicando que queremos substituir as transformações nativas de minificação com classes MyJsTransform e MyCssTransform personalizadas. Elas são subclasses dos respectivos minificadores padrão para CSS e JavaScript, e podem adicionar funcionalidades extras:     O resultado final desta extensibilidade é que você pode se plugar dentro da lógica de combinação/minificação em um nível profundo e fazer algumas coisas muito legais com este recurso. Vídeo de 2 Minutos sobre Combinação e Minificacão de Arquivos em Ação Mads Kristensen tem um ótimo vídeo de 90 segundo (em Inglês) que demonstra a utilização do recurso de Combinação e Minificação de Arquivos. Você pode assistir o vídeo de 90 segundos aqui. Sumário O novo suporte para combinação e minificação de arquivos CSS e JavaScript dentro da próxima versão da ASP.NET tornará mais fácil a construção de aplicações web performáticas. Este recurso é realmente fácil de usar e não requer grandes mudanças no seu fluxo de trabalho de desenvolvimento existente. Ele também suporta uma rica API de extensibilidade que permite a você personalizar a lógica da maneira que você achar melhor. Você pode facilmente tirar vantagem deste novo suporte dentro de aplicações baseadas em ASP.NET MVC e ASP.NET Web Forms. Espero que ajude, Scott P.S. Além do blog, eu uso o Twitter para disponibilizar posts rápidos e para compartilhar links.Lidar com o meu Twitter é: @scottgu Texto traduzido do post original por Leniel Macaferi. google_ad_client = "pub-8849057428395760"; /* 728x90, created 2/15/09 */ google_ad_slot = "4706719075"; google_ad_width = 728; google_ad_height = 90;

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  • Latest Chrome Canary Channel Build Adds Automatic ‘Malware Download’ Blocking Feature

    - by Akemi Iwaya
    As Chrome’s popularity continues to grow, malware authors are looking for new ways to target and trick users of Google’s browser into downloading malicious software to their computers. With this problem in mind, Google has introduced a new feature into the Canary Channel to automatically detect and block malware downloads whenever possible in order to help keep your system intact and safe. Screenshot courtesy of The Google Chrome Blog. In addition to the recent Reset Feature added to the stable build of Chrome this past August, the new feature in the Canary Channel build works to help protect you as follows: From the Google Chrome Blog post: In the current Canary build of Chrome, we’ll automatically block downloads of malware that we detect. If you see this message in the download tray at the bottom of your screen, you can click “Dismiss” knowing Chrome is working to keep you safe. (See screenshot above.) You can learn more about the new feature and download the latest Canary Channel build via the links below. Don’t mess with my browser! [Google Chrome Blog] Download the Latest Chrome Canary Build [Google] [via The Next Web]     

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  • Turning a board game idea into a browser based, slow paced gameplay

    - by guillaume31
    Suppose I want to create a strategy game with global mutable state shared between all players (think game board). But unlike a board game, I don't want it to be real time action and/or turn-based. Instead, players should be able to log in at any time of the day and spend a fixed number of action points per day as they wish. As opposed to a few hours, game sessions would run over a few weeks. This is meant to reward good strategy rather than time spent playing (as an alternative, hardcore players could always play multiple games in parallel instead) as well as all kind of issues related to live playing like disconnections and synchronization. The game should remain addictive still have a low time investment footprint for casual players. So far so good, but this still leaves open the question of when to solve actions and when they should be visible. I want to avoid "ninja play" like doing all your moves just a few minutes before daily point reset to take other players by surprise, or people spamming F5 to place a well-timed action which would defeat the whole point of a non real-time game. I thought of a couple of approaches to that : Resolve all events in a single scheduled process running once a day. This basically means a "blind" gameplay where players can take actions but don't see their results immediately. The thing is, I played a similar browser game a few years ago and didn't like the fact that you feel disconnected and powerless until there's that deus ex machina telling you what really happened during all that time. You see the world evolve in large increments of one day, which often doesn't seem like seeing it evolve at all. For actions that have an big impact on the game or on other players (attacks, big achievements), make them visible to everyone immediately but delay their effect by something like 24 hours. Opposing players could be notified when such an event happens, so that they can react to it. Do you have any other ideas how I could go about solving this ? Are there any known approaches in similar existing games ?

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  • External Monitors shut off when Laptop Lid closes

    - by John Lanz
    I have researched the solution... gconftool-2 --type string --set /apps/gnome-power-manager/buttons/lid_ac "nothing" does not fix it. I have two external monitors and when I close my lid the settings are reset and the laptop's monitor is set to the default. Thanks! gsettings list-recursively org.gnome.settings-daemon.plugins.power org.gnome.settings-daemon.plugins.power active true org.gnome.settings-daemon.plugins.power button-hibernate 'nothing' org.gnome.settings-daemon.plugins.power button-power 'nothing' org.gnome.settings-daemon.plugins.power button-sleep 'nothing' org.gnome.settings-daemon.plugins.power button-suspend 'nothing' org.gnome.settings-daemon.plugins.power critical-battery-action 'suspend' org.gnome.settings-daemon.plugins.power idle-brightness 30 org.gnome.settings-daemon.plugins.power idle-dim-ac false org.gnome.settings-daemon.plugins.power idle-dim-battery true org.gnome.settings-daemon.plugins.power idle-dim-time 10 org.gnome.settings-daemon.plugins.power lid-close-ac-action 'nothing' org.gnome.settings-daemon.plugins.power lid-close-battery-action 'nothing' org.gnome.settings-daemon.plugins.power notify-perhaps-recall true org.gnome.settings-daemon.plugins.power percentage-action 2 org.gnome.settings-daemon.plugins.power percentage-critical 3 org.gnome.settings-daemon.plugins.power percentage-low 10 org.gnome.settings-daemon.plugins.power priority 1 org.gnome.settings-daemon.plugins.power sleep-display-ac 600 org.gnome.settings-daemon.plugins.power sleep-display-battery 600 org.gnome.settings-daemon.plugins.power sleep-inactive-ac false org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0 org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'suspend' org.gnome.settings-daemon.plugins.power sleep-inactive-battery true org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout 0 org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'suspend' org.gnome.settings-daemon.plugins.power time-action 120 org.gnome.settings-daemon.plugins.power time-critical 300 org.gnome.settings-daemon.plugins.power time-low 1200 org.gnome.settings-daemon.plugins.power use-time-for-policy true

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  • Resolving the Access is Denied Error in VSeWSS Deployments

    - by Damon
    Visual Studio Extensions for Windows SharePoint Services 1.3 (VSeWSS 1.3) tends to make my life easier unless I'm typing out the words that make up the VSeWSS acronym - really, what a mouthful.  But one of the problems that I routinely encounter are error messages when trying to deploy solutions.  These normally look something like the following: Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) I tried a variety of steps to resolve this issue: Recycling the application pool Restarting IIS Closing Visual Studio Not detaching from the debugger until a request was fully completed Logging off and logging back into Windows etc. Nothing actually worked.  Some of these resolution attempts seemed to help keep the problem from happening quite as frequently, but I still have no idea what EXACTLY causes the problem and it would rear its ugly head from time to time.  Unfortunately, the only resolution I found that seemed to work was to reboot the machine . which is a crappy resolution. Finally sick enough of the problem to spend some time on it, I went on a search and tried to figure out if anyone else was having this issue.  People seem to suggest that turning off the Indexing Service on your machine helps resolve this problem.  I tried turning it off but I kept having issues.  Which was depressing.  Fortunately, I stumbled upon the resolution when I was looking through the services list.  If you encounter the issue, all you have to do is reset the World Wide Web Publishing Service.  I've had a 100% success rate so far with this approach.  I'm not sure if having the Indexing Service is part of the solution, but I've kept it disabled for the time being because I'm really sick of having to reboot my machine to deal with that error message. If you do VSeWSS development, you may also want to check out this blog post: VSeWSS 1.3 - Getting around the "Unable to load one or more of the requested types" Error

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  • /usr/lib/cups/backend/hp has failed with an HP LaserJet p3005

    - by edtechdev
    Ever since 10.04, I can't print to an HP laserjet p3005. I'm even using an entirely different computer now with a fresh install of 10.10. I've tried with and without the latest hplip. Recently, sometimes I can get it to print a few things, but eventually it always fails (usually when printing a pdf from the document viewer (also doesn't work with adobe pdf reader)). Sometimes it fails so bad the printer gives an error saying it needs to be turned off and on again. I can't seem to find a fix anywhere, I've googled all over the past year and tried every fix I could find. It does say that the /usr/lib/cups/backend/hp has failed. It also doesn't make a difference if I create the printer using hp-setup or ubuntu's own printing control panel. I delete and re-create the printer, no difference eventually. I use the default printer settings or custom settings, no difference. I can print perfectly find to a networked printer at home - an HP officejet 6310. It seems to be networked HP printers at work that I can't print to anymore (except occasionally right after re-installing the printer driver). What's the recommended way to install HP printer drivers and reset or clean out everything from before. Or where are the right logs to read or debug commands to do to find out what may be the real cause of the printing problems?

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  • Queued Loadtest to remove Concurrency issues using Shared Data Service in OpenScript

    - by stefan.thieme(at)oracle.com
    Queued Processing to remove Concurrency issues in Loadtest ScriptsSome scripts act on information returned by the server, e.g. act on first item in the returned list of pending tasks/actions. This may lead to concurrency issues if the virtual users simulated in a load test scenario are not synchronized in some way.As the load test cases should be carried out in a comparable and straight forward manner simply cancel a transaction in case a collision occurs is clearly not an option. In case you increase the number of virtual users this approach would lead to a high number of requests for the early steps in your transaction (e.g. login, retrieve list of action points, assign an action point to the virtual user) but later steps would be rarely visited successfully or at all, depending on the application logic.A way to tackle this problem is to enqueue the virtual users in a Shared Data Service queue. Only the first virtual user in this queue will be allowed to carry out the critical steps (retrieve list of action points, assign an action point to the virtual user) in your transaction at any one time.Once a virtual user has passed the critical path it will dequeue himself from the head of the queue and continue with his actions. This does theoretically allow virtual users to run in parallel all steps of the transaction which are not part of the critical path.In practice it has been seen this is rarely the case, though it does not allow adding more than N users to perform a transaction without causing delays due to virtual users waiting in the queue. N being the time of the total transaction divided by the sum of the time of all critical steps in this transaction.While this problem can be circumvented by allowing multiple queues to act on individual segments of the list of actions, e.g. per country filter, ends with 0..9 filter, etc.This would require additional handling of these additional queues of slots for the virtual users at the head of the queue in order to maintain the mutually exclusive access to the first element in the list returned by the server at any one time of the load test. Such an improved handling of multiple queues and/or multiple slots is above the subject of this paper.Shared Data Services Pre-RequisitesStart WebLogic Server to host Shared Data ServicesYou will have to make sure that your WebLogic server is installed and started. Shared Data Services may not work if you installed only the minimal installation package for OpenScript. If however you installed the default package including OLT and OTM, you may follow the instructions below to start and verify WebLogic installation.To start the WebLogic Server deployed underneath of Oracle Load Testing and/or Oracle Test Manager you can go to your Start menu, Oracle Application Testing Suite and select the Restart Oracle Application Testing Suite Application Service entry from the Tools submenu.To verify the service has been started you can run the Microsoft Management Console for Services by Selecting Run from the Start Menu and entering services.msc. Look for the entry that reads Oracle Application Testing Suite Application Service, once it has changed it status from Starting to Started you can proceed to verify the login. Please note that this may take several minutes, I would say up to 10 minutes depending on the strength of your CPU horse-power.Verify WebLogic Server user credentialsYou will have to make sure that your WebLogic Server is installed and started. Next open the Oracle WebLogic Server Adminstration Console on http://localhost:8088/console.It may take a while until the application is deployed and started. It may display the following until the Administration Console has been deployed on the fly.Afterwards you can login using the username oats and the password that you selected during install time for your Application Testing Suite administrative purposes.This will bring up the Home page of you WebLogic Server. You have actually verified that you are able to login with these credentials already. However if you want to check the details, navigate to Security Realms, myrealm, Users and Groups tab.Here you could add users to your WebLogic Server which could be used in the later steps. Details on the Groups required for such a custom user to work are exceeding this quick overview and have to be selected with the WebLogic Server Adminstration Guide in mind.Shared Data Services pre-requisites for Load testingOpenScript Preferences have to be set to enable Encryption and provide a default Shared Data Service Connection for Playback.These are pre-requisites you want to use for load testing with Shared Data Services.Please note that the usage of the Connection Parameters (individual directive in the script) for Shared Data Services did not playback reliably in the current version 9.20.0370 of Oracle Load Testing (OLT) and encryption of credentials still seemed to be mandatory as well.General Encryption settingsSelect OpenScript Preferences from the View menu and navigate to the General, Encryption entry in the tree on the left. Select the Encrypt script data option from the list and enter the same password that you used for securing your WebLogic Server Administration Console.Enable global shared data access credentialsSelect OpenScript Preferences from the View menu and navigate to the Playback, Shared Data entry in the tree on the left. Enable the global shared data access credentials and enter the Address, User name and Password determined for your WebLogic Server to host Shared Data Services.Please note, that you may want to replace the localhost in Address with the hosts realname in case you plan to run load tests with Loadtest Agents running on remote systems.Queued Processing of TransactionsEnable Shared Data Services Module in Script PropertiesThe Shared Data Services Module has to be enabled for each Script that wants to employ the Shared Data Service Queue functionality in OpenScript. It can be enabled under the Script menu selecting Script Properties. On the Script Properties Dialog select the Modules section and check Shared Data to enable Shared Data Service Module for your script. Checking the Shared Data Services option will effectively add a line to your script code that adds the sharedData ScriptService to your script class of IteratingVUserScript.@ScriptService oracle.oats.scripting.modules.sharedData.api.SharedDataService sharedData;Record your scriptRecord your script as usual and then add the following things for Queue handling in the Initialize code block, before the first step and after the last step of your critical path and in the Finalize code block.The java code to be added at individual locations is explained in the following sections in full detail.Create a Shared Data Queue in InitializeTo create a Shared Data Queue go to the Java view of your script and enter the following statements to the initialize() code block.info("Create queueA with life time of 120 minutes");sharedData.createQueue("queueA", 120);This will create an instantiation of the Shared Data Queue object named queueA which is maintained for upto 120 minutes.If you want to use the code for multiple scripts, make sure to use a different queue name for each one here and in the subsequent steps. You may even consider to use a dynamic queueName based on filters of your result list being concurrently accessed.Prepare a unique id for each IterationIn order to keep track of individual virtual users in our queue we need to create a unique identifier from the virtual user id and the used username right after retrieving the next record from our databank file.getDatabank("Usernames").getNextDatabankRecord();getVariables().set("usernameValue1","VU_{{@vuid}}_{{@iterationnum}}_{{db.Usernames.Username}}_{{@timestamp}}_{{@random(10000)}}");String usernameValue = getVariables().get("usernameValue1");info("Now running virtual user " + usernameValue);As you can see from the above code block, we have set the OpenScript variable usernameValue1 to VU_{{@vuid}}_{{@iterationnum}}_{{db.Usernames.Username}}_{{@timestamp}}_{{@random(10000)}} which is a concatenation of the virtual user id and the iterationnumber for general uniqueness; as well as the username from our databank, the timestamp and a random number for making it further unique and ease spotting of errors.Not all of these fields are actually required to make it really unique, but adding the queue name may also be considered to help troubleshoot multiple queues.The value is then retrieved with the getVariables.get() method call and assigned to the usernameValue String used throughout the script.Please note that moving the getDatabank("Usernames").getNextDatabankRecord(); call to the initialize block was later considered to remove concurrency of multiple virtual users running with the same userid and therefor accessing the same "My Inbox" in step 6. This will effectively give each virtual user a userid from the databank file. Make sure you have enough userids to remove this second hurdle.Enqueue and attend Queue before Critical PathTo maintain the right order of virtual users being allowed into the critical path of the transaction the following pseudo step has to be added in front of the first critical step. In the case of this example this is right in front of the step where we retrieve the list of actions from which we select the first to be assigned to us.beginStep("[0] Waiting in the Queue", 0);{info("Enqueued virtual user " + usernameValue + " at the end of queueA");sharedData.offerLast("queueA", usernameValue);info("Wait until the user is the first in queueA");String queueValue1 = null;do {// we wait for at least 0.7 seconds before we check the head of the// queue. This is the time it takes one user to move through the// critical path, i.e. pass steps [5] Enter country and [6] Assign// to meThread.sleep(700);queueValue1 = (String) sharedData.peekFirst("queueA");info("The first user in queueA is currently: '" + queueValue1 + "' " + queueValue1.getClass() + " length " + queueValue1.length() );info("The current user is '"+ usernameValue + "' " + usernameValue.getClass() + " length " + usernameValue.length() + ": indexOf " + usernameValue.indexOf(queueValue1) + " equals " + usernameValue.equals(queueValue1) );} while ( queueValue1.indexOf(usernameValue) < 0 );info("Now the user is the first in queueA");}endStep();This will enqueue the username to the tail of our Queue. It will will wait for at least 700 milliseconds, the time it takes for one user to exit the critical path and then compare the head of our queue with it's username. This last step will be repeated while the two are not equal (indexOf less than zero). If they are equal the indexOf will yield a value of zero or larger and we will perform the critical steps.Dequeue after Critical PathAfter the virtual user has left the critical path and complete its last step the following code block needs to dequeue the virtual user. In the case of our example this is right after the action has been actually assigned to the virtual user. This will allow the next virtual user to retrieve the list of actions still available and in turn let him make his selection/assignment.info("Get and remove the current user from the head of queueA");String pollValue1 = (String) sharedData.pollFirst("queueA");The current user is removed from the head of the queue. The next one will now be able to match his username against the head of the queue.Clear and Destroy Queue for FinishWhen the script has completed, it should clear and destroy the queue. This code block can be put in the finish block of your script and/or in a separate script in order to clear and remove the queue in case you have spotted an error or want to reset the queue for some reason.info("Clear queueA");sharedData.clearQueue("queueA");info("Destroy queueA");sharedData.destroyQueue("queueA");The users waiting in queueA are cleared and the queue is destroyed. If you have scripts still executing they will be caught in a loop.I found it better to maintain a separate Reset Queue script which contained only the following code in the initialize() block. I use to call this script to make sure the queue is cleared in between multiple Loadtest runs. This script could also even be added as the first in a larger scenario, which would execute it only once at very start of the Loadtest and make sure the queues do not contain any stale entries.info("Create queueA with life time of 120 minutes");sharedData.createQueue("queueA", 120);info("Clear queueA");sharedData.clearQueue("queueA");This will create a Shared Data Queue instance of queueA and clear all entries from this queue.Monitoring QueueWhile creating the scripts it was useful to monitor the contents, i.e. the current first user in the Queue. The following code block will make sure the Shared Data Queue is accessible in the initialize() block.info("Create queueA with life time of 120 minutes");sharedData.createQueue("queueA", 120);In the run() block the following code will continuously monitor the first element of the Queue and write an informational message with the current username Value to the Result window.info("Monitor the first users in queueA");String queueValue1 = null;do {queueValue1 = (String) sharedData.peekFirst("queueA");if (queueValue1 != null)info("The first user in queueA is currently: '" + queueValue1 + "' " + queueValue1.getClass() + " length " + queueValue1.length() );} while ( true );This script can be run from OpenScript parallel to a loadtest performed by the Oracle Load Test.However it is not recommend to run this in a production loadtest as the performance impact is unknown. Accessing the Queue's head with the peekFirst() method has been reported with about 2 seconds response time by both OpenScript and OTL. It is advised to log a Service Request to see if this could be lowered in future releases of Application Testing Suite, as the pollFirst() and even offerLast() writing to the tail of the Queue usually returned after an average 0.1 seconds.Debugging QueueWhile debugging the scripts the following was useful to remove single entries from its head, i.e. the current first user in the Queue. The following code block will make sure the Shared Data Queue is accessible in the initialize() block.info("Create queueA with life time of 120 minutes");sharedData.createQueue("queueA", 120);In the run() block the following code will remove the first element of the Queue and write an informational message with the current username Value to the Result window.info("Get and remove the current user from the head of queueA");String pollValue1 = (String) sharedData.pollFirst("queueA");info("The first user in queueA was currently: '" + pollValue1 + "' " + pollValue1.getClass() + " length " + pollValue1.length() );ReferencesOracle Functional Testing OpenScript User's Guide Version 9.20 [E15488-05]Chapter 17 Using the Shared Data Modulehttp://download.oracle.com/otn/nt/apptesting/oats-docs-9.21.0030.zipOracle Fusion Middleware Oracle WebLogic Server Administration Console Online Help 11g Release 1 (10.3.4) [E13952-04]Administration Console Online Help - Manage users and groupshttp://download.oracle.com/docs/cd/E17904_01/apirefs.1111/e13952/taskhelp/security/ManageUsersAndGroups.htm

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  • SQL SERVER – Auto Recovery File Settings in SSMS – SQL in Sixty Seconds #034 – Video

    - by pinaldave
    Every developer once in a while facing an unfortunate situation where they have not yet saved the work and their SQL Server Management Studio crashes. Well, you can minimize the loss by optimizing auto recovery settings. In this video we can see how to set the auto recovery settings. Go to SSMS >> Tools >> Options >> Environment >> AutoRecover There are two different settings: 1) Save AutoRecover Information Every Minutes This option will save the SQL Query file at certain interval. Set this option to minimum value possible to avoid loss. If you have set this value to 5, in the worst possible case, you can loose last 5 minutes of the work. 2) Keep AutoRecover Information for Days This option will preserve the AutoRecovery information for specified days. Though, I suggest in case of accident open SQL Server Management Studio right away and recover your file. Do not procrastinate this important task for future dates. Related Tips in SQL in Sixty Seconds: Manage Help Settings – CTRL + ALT + F1 SSMS 2012 Reset Keyboard Shortcuts to Default A Cool Trick – Restoring the Default SQL Server Management Studio – SSMS Color Coding SQL Server Management Studio Status Bar – SQL in Sixty Seconds #023 – Video Clear Drop Down List of Recent Connection From SQL Server Management Studio SELECT TOP Shortcut in SQL Server Management Studio (SSMS) What would you like to see in the next SQL in Sixty Seconds video? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Database, Pinal Dave, PostADay, SQL, SQL Authority, SQL in Sixty Seconds, SQL Query, SQL Scripts, SQL Server, SQL Server Management Studio, SQL Tips and Tricks, T SQL, Technology, Video Tagged: Excel

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