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• ODI 11g – Faster Files

  - by David Allan

  Deep in the trenches of ODI development I raised my head above the parapet to read a few odds and ends and then think why don’t they know this? Such as this article here – in the past customers (see forum) were told to use a staging route which has a big overhead for large files. This KM is an example of the great extensibility capabilities of ODI, its quite simple, just a new KM that; improves the out of the box experience – just build the mapping and the appropriate KM is used improves out of the box performance for file to file data movement. This improvement for out of the box handling for File to File data integration cases (from the 11.1.1.5.2 companion CD and on) dramatically speeds up the file integration handling. In the past I had seem some consultants write perl versions of the file to file integration case, now Oracle ships this KM to fill the gap. You can find the documentation for the IKM here. The KM uses pure java to perform the integration, using java.io classes to read and write the file in a pipe – it uses java threading in order to super-charge the file processing, and can process several source files at once when the datastore's resource name contains a wildcard. This is a big step for regular file processing on the way to super-charging big data files using Hadoop – the KM works with the lightweight agent and regular filesystems. So in my design below transforming a bunch of files, by default the IKM File to File (Java) knowledge module was assigned. I pointed the KM at my JDK (since the KM generates and compiles java), and I also increased the thread count to 2, to take advantage of my 2 processors. For my illustration I transformed (can also filter if desired) and moved about 1.3Gb with 2 threads in 140 seconds (with a single thread it took 220 seconds) - by no means was this on any super computer by the way. The great thing here is that it worked well out of the box from the design to the execution without any funky configuration, plus, and a big plus it was much faster than before, So if you are doing any file to file transformations, check it out!

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• SSIS Send Mail Task and ForceExecutionValue Error

  - by Kevin Shyr

  I tried to use the "ForcedExecutionValue" on several Send Mail Tasks and log the execution into a ExecValueVariable so that at the end of the package I can log into a table to say whether the data check is successful or not (by determine whether an email was sent out) I set up a Boolean variable that is accessible at the package level, then set up my Send Mail Task as the screenshot below with Boolean as my ForcedExecutionValueType.  When I run the package, I got the error described below. Just to make sure this is not another issue of SSIS having with Boolean type ( you also can't set variable value from xp_cmdshell of type Boolean), I used variables of types String, Int32, DateTime with the corresponding ForcedExecutionValueType.  The only way to get around this error, was to set my variable to type Object, but then when you try to get the value out later, the Object is null. I didn't spend enough time on this to see whether it's really a bug in SSIS or not, or is this just how Send Mail Task works.  Just want to log the error and will circle back on this later to narrow down the issue some more.  In the meantime, please share if you have run into the same problem.  The current workaround is to attach a script task at the end. Also, need to note 2 existing limitation: Data check needs to be done serially because every check needs to be inner join to a master table.  The master table has all the data in a single XML column and hence need to be retrieved with XQuery (a fundamental design flaw that needs to be changed) The next iteration will be to change this design into a FOR loop and pull out the checking query from a table somewhere with all the info needed for email task, but is being put to the back of the priority. Error Message: Error: 0xC001F009 at CountCheckBetweenODSAndCleanSchema: The type of the value being assigned to variable "User::WasErrorEmailEverSent" differs from the current variable type. Variables may not change type during execution. Variable types are strict, except for variables of type Object. Error: 0xC0019001 at Send Mail Task on count mismatch: The wrapper was unable to set the value of the variable specified in the ExecutionValueVariable property.   Screenshot of my Send Mail Task setup:

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• Rule of thumb for cost vs. savings for code re-use

  - by Styler

  Is it a good rule of thumb to always write code for the intent of re-using it somewhere down the road? Or, depending on the size of the component you are writing, is it better practice to design it for re-use when it makes sense with regards to time spent on it. What is a good rule of thumb for spending extra time on analysis and design on project components that have "some probability" of being needed later down the road for other things that may or may need this part. For example, if I have the need for project X to do things A, and B. A definitely needs to be written for re-use because it just makes sense to do so. B is very project specific at the moment, and I can hack it all together in a couple days to finish the project on time and give everyone kudos for being a great team, etc. Or if we say, lets spend a whole friggin' 2 weeks figuring out what project Y/Z might need this thing for and spend a load of extra time on on part B because someday we might need to use it on project Y/Z (where the savings will be realized). I'd imagine a perfect world situation would be a nicely crafted combination of project specific vs. re-use architected components given the project. However some code shops might feel it would be a great idea to write everything for the intention of using it at some point down the road.

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• CodePlex Daily Summary for Wednesday, June 12, 2013

  CodePlex Daily Summary for Wednesday, June 12, 2013Popular ReleasesWeb Pages CMS: 0.5.0.5: Added empty media directoryWindows 8 App Desing Reference Template: Education Big Picture: EducationBigPicture: Download includes the following -> Source (C# and JS) -> Package -> Snapshots -> DocumentationModern UI for WPF: Modern UI 1.0.4: The ModernUI assembly including a demo app demonstrating the various features of Modern UI for WPF. Related downloads NuGet ModernUI for WPF is also available as NuGet package in the NuGet gallery, id: ModernUI.WPF Download Modern UI for WPF Templates A Visual Studio 2012 extension containing a collection of project and item templates for Modern UI for WPF. The extension includes the ModernUI.WPF NuGet package. DownloadToolbox for Dynamics CRM 2011: XrmToolBox (v1.2013.6.11): XrmToolbox improvement Add exception handling when loading plugins Updated information panel for displaying two lines of text Tools improvementMetadata Document Generator (v1.2013.6.10)New tool Web Resources Manager (v1.2013.6.11)Retrieve list of unused web resources Retrieve web resources from a solution All tools listAccess Checker (v1.2013.2.5) Attribute Bulk Updater (v1.2013.1.17) FetchXml Tester (v1.2013.3.4) Iconator (v1.2013.1.17) Metadata Document Generator (v1.2013.6.10) Privilege...Document.Editor: 2013.23: What's new for Document.Editor 2013.23: New Insert Emoticon support Improved Format support Minor Bug Fix's, improvements and speed upsChristoc's DotNetNuke Module Development Template: DotNetNuke 7 Project Templates V2.4 for VS2012: V2.4 - Release Date 6/10/2013 Items addressed in this 2.4 release Updated MSBuild Community Tasks reference to 1.4.0.61 Setting up your DotNetNuke Module Development Environment Installing Christoc's DotNetNuke Module Development Templates Customizing the latest DotNetNuke Module Development Project TemplatesLayered Architecture Sample for .NET: Leave Sample - June 2013 (for .NET 4.5): Thank You for downloading Layered Architecture Sample. Please read the accompanying README.txt file for setup and installation instructions. This is the first set of a series of revised samples that will be released to illustrate the layered architecture design pattern. This version is only supported on Visual Studio 2012. This samples illustrates the use of ASP.NET Web Forms, ASP.NET Model Binding, Windows Communications Foundation (WCF), Windows Workflow Foundation (WF) and Microsoft Ente...Papercut: Papercut 2013-6-10: Feature: Shows From, To, Date and Subject of Email. Feature: Async UI and loading spinner. Enhancement: Improved speed when loading large attachments. Enhancement: Decoupled SMTP server into secondary assembly. Enhancement: Upgraded to .NET v4. Fix: Messages lost when received very fast. Fix: Email encoding issues on display/Automatically detect message Encoding Installation Note:Installation is copy and paste. Incoming messages are written to the start-up directory of Papercut. If you do n...SFDL.NET: SFDL.NET v1.1.0.4: Changelog: Ciritical Bug Fixed : Downloading of Files not possibleMapWinGIS ActiveX Map and GIS Component: MapWinGIS v4.8.8 Release Candidate - 32 Bit: This is the first release candidate of MapWinGIS. Please test it thoroughly.MapWindow 4: MapWindow GIS v4.8.8 - Release Candidate - 32Bit: Download the release notes here: http://svn.mapwindow.org/svnroot/MapWindow4Dev/Bin/MapWindowNotes.rtfLINQ to Twitter: LINQ to Twitter v2.1.06: Supports .NET 3.5, .NET 4.0, .NET 4.5, Silverlight 4.0, Windows Phone 7.1, Windows Phone 8, Client Profile, Windows 8, and Windows Azure. 100% Twitter API coverage. Also supports Twitter API v1.1! Also on NuGet.VR Player: VR Player 0.3 ALPHA: New plugin system with individual folders TrackIR support Maya and 3ds max formats support Dual screen support Mono layouts (left and right) Cylinder height parameter Barel effect factor parameter Razer hydra filter parameter VRPN bug fixes UI improvements Performances improvements Stabilization and logging with Log4Net New default values base on users feedback CTRL key to open menuSimCityPak: SimCityPak 0.1.0.8: SimCityPak 0.1.0.8 New features: Import BMP color palettes for vehicles Import RASTER file (uncompressed 8.8.8.8 DDS files) View different channels of RASTER files or preview of all layers combined Find text in javascripts TGA viewer Ground textures added to lot editor Many additional identified instances and propertiesWsus Package Publisher: Release v1.2.1306.09: Add more verifications on certificate validation. WPP will not let user to try publishing an update until the certificate is valid. Add certificate expiration date on the 'About' form. Filter Approbation to avoid a user to try to approve an update for uninstallation when the update do not support uninstallation. Add the server and console version on the 'About' form. WPP will not let user to publish an update until the server and console are not at the same level. WPP do not let user ...AJAX Control Toolkit: June 2013 Release: AJAX Control Toolkit Release Notes - June 2013 Release Version 7.0607June 2013 release of the AJAX Control Toolkit. AJAX Control Toolkit .NET 4.5 – AJAX Control Toolkit for .NET 4.5 and sample site (Recommended). AJAX Control Toolkit .NET 4 – AJAX Control Toolkit for .NET 4 and sample site (Recommended). AJAX Control Toolkit .NET 3.5 – AJAX Control Toolkit for .NET 3.5 and sample site (Recommended). Notes: - Instructions for using the AJAX Control Toolkit with ASP.NET 4.5 can be found at...Rawr: Rawr 5.2.1: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...VG-Ripper & PG-Ripper: PG-Ripper 1.4.13: changes NEW: Added Support for "ImageJumbo.com" links FIXED: Ripping of Threads with multiple pagesJson.NET: Json.NET 5.0 Release 6: New feature - Added serialized/deserialized JSON to verbose tracing New feature - Added support for using type name handling with ISerializable content Fix - Fixed not using default serializer settings with primitive values and JToken.ToObject Fix - Fixed error writing BigIntegers with JsonWriter.WriteToken Fix - Fixed serializing and deserializing flag enums with EnumMember attribute Fix - Fixed error deserializing interfaces with a valid type converter Fix - Fixed error deser...Biller: Biller 1.49: This release fixes company sales statisticsNew Projectsapiviewer: Documentation viewer for your service API.ArgusLib: Set of libraries I use in most of my projects.arwani: this is armani project.Blue Mercs Data Gateway: The Data Gateway is an open source project which simplifies coding fluently database SQL statements, stored procedure, connections and transactions.Convert Hashtable Rows into DataTable Columns in C#: Simplest way to convert a Hashtable into a DataTable with all the Hashtable rows converted into DataTable columns.everynet: EveryNet is an internet service provider servicing homes Fraktalysator: Software to visualize fractals such as the Mandelbrot Set. Still in early development state.Free BarCode API for .NET: Freee BarCode API for .NETGraphic filters in WPF: FiltersGrid Plugin: Grid Plugin , Turn your <table> into a fully functional price grid.mediamonitor: this is mediamonitor project.MyCodingStuffs: This solution includes C#, WCF, MVC4.0, ASP.net libraries.OpenErp .Net Connector: Access to OpenErp from .NetPhong and Flat shading: Phong shadingPixel Replacer: The Pixel Replacer is a simple library for replacing pixel colors with a new color, by setting a filter rule.plainetl in vb.net: a one db to another db transform, threaded, commandline tool, ... initially created to get a flat-File db (FoxPro) into a mssql.Programming in HTML5 with JavaScript and CSS3: Contains material developed while visiting a Microsoft course for the MCSD exam 70-480ProjectLinker2012: This tool helps to automatically create and maintain links from a source project to a target project to share code that is common to Silverlight and WPF.SALDERA Project: SALDERA TEST Project Summary Mire lesz ez jó? Majd Kiderül.TCPMessageServer: Simple TCP Client/Server used to pass an object between client and serverThats-Me Dot Net API: Thats-Me Dot Net API is a library which implements the Thats-Me.ch API for the Dot Net Framework.T-Sql Code Documentor: Document T-SQL Code and Extract Comments for all objects in a database.Windows 8 App Design Reference Template: Measurement: Measurement template will help if you want to build an app which addresses Mass/Weight, Distance/Length, Capacity/Volume etc. measurement placeholders.Windows 8 App Design Reference Template: Weather Clock: Weather Clock Template will help if you want to build an app which has the features to add Current/Previous day temperatures and add cities for coverage. Windows 8 App Desing Reference Template: Education Big Picture: Education Big Picture Template will help if you want to build an app which has an option for showcasing campus details, courses, student life etc dataWinodws 8 App Design Reference Template: Social Feed: Social Feed template will help if you want to build an app which has the Messaging, Facebook, twitter feeds sections. WP7FlacPlayer: Implemented JFlacLib in C# A simple player to play flac in windows phone system

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• How to provide value?

  - by Francisco Garcia

  Before I became a consultant all I cared about was becoming a highly skilled programmer. Now I believe that what my clients need is not a great hacker, coder, architect... or whatever. I am more and more convinced every day that there is something of greater value. Everywhere I go I discover practices where I used to roll my eyes in despair. I saw the software industry with pink glasses and laughed or cried at them depending on my mood. I was so convinced everything could be done better. Now I believe that what my clients desperately need is finding a balance between good engineering practices and desperate project execution. Although a great design can make a project cheap to maintain thought many years, usually it is more important to produce quick fast and cheap, just to see if the project can succeed. Before that, it does not really matters that much if the design is cheap to maintain, after that, it might be too late to improve things. They need people who get involved, who do some clandestine improvements into the project without their manager approval/consent/knowledge... because they are never given time for some tasks we all know are important. Not all good things can be done, some of them must come out of freewill, and some of them must be discussed in order to educate colleagues, managers, clients and ourselves. Now my big question is. What exactly are the skills and practices aside from great coding that can provide real value to the economical success of software projects? (and not the software architecture alone)

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• How do you explain to an "agile" team that they still need to plan the software they write?

  - by user23157

  This week at work I got agiled yet again. Having gone through the standard agile, TDD, shared ownership, ad hoc development methodology of never planning anything beyond a few user stories on a piece of card, verbally chewing the cud over the technicallities of a 3rd party integration ad nauseam without ever doing any real thinking or due dilligence and architecturally coupling all production code to the first test that comes into anyone's head for the past few months we reach the end of a release cycle and lo and behold the main externally visible feature that we have been developing is too slow to use, buggy, becoming labyrinthinly complex and completely inflexible. During this process "spikes" were done but never documented and not a single architectural design was ever produced (there was no FS, so what the hell eh, if you don't know what you are developing, how can you plan or research it?) - the project passed from pair to pair, each of whom only ever focused on a single user story at a time and well the result was inevitable. To resolve this I went off the radar, went (the dreaded) waterfall, planned, coded and basically didn't swap off the pair and tried as much as I could to work alone - focusing on solid architecture and specifications rather than unit tests which will come later once everything is pinned down. The code is now much better and is actually totally usable, flexible and fast. Certain people seem to have really resented me doing this and have gone out of their way to sabotage my efforts (possibly unconsciously) because it goes against the holy process of agile. So how do you, as a developer, explain to the team that it is not "un-agile" to plan their work, and how do you fit planning into the agile process? (I'm not talking about the IPM; I'm talking about sitting down with a problem and sketching out an end-to-end design that says how a problem should be solved in sufficient detail that anyone who works on the problem knows what architecture and patterns they should be using and where the new code should integrate into existing code)

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• Dev Lead Job opening on my team

  My product unit (Parallel Developer Tools) is hiring a developer lead here in Redmond. This position is specifically on the debugger feature team that I "Program Manage".So, if you have what it takes and don't mind working with me every single day, click on the link below to read more and apply. You can also send me your resume and I'll make sure it gets to the right place and that you get a prompt response.There is a very long job description on the Microsoft careers site under job id 707388.Here is an excerpt from the middle (emphasis mine):"...We are in search of a talented and innovative senior lead software design engineer to own development of the debugging tools for data parallelism (including GP-GPU) and HPC Clusters being built by our team.To be successful, you need to be able to guide careers, design and architect well, communicate and share the best development practices, collaborate with your peers, contribute to the vision, and code significant portions of the solution. We want to hear from you if you're passionate about making your mark in the parallel development space, improving people, and building world-class tools."Responsibilities include:Managing a team of senior and junior developersDesign and coding high-quality software..."For the full background story, requirements, qualifications and responsibilities please visit the official page. Comments about this post welcome at the original blog.

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• Chrome Mobile Monthly: Responsive vs Separate Sites

  Chrome Mobile Monthly: Responsive vs Separate Sites Join us on Wednesday October 31st at 9am PT for our Monthly Mobile Web Hangout! This month +Brad Frost will be joining us to talk about responsive design versus separate mobile sites. And in keeping with the season, it's a special Presidential Smackdown Edition. The US presidential race is in full swing, and the candidates are intensely debating the country's hot-button issues. The web design world is entrenched in our own debate about how to address the mobile web: should we create a separate mobile site or create a responsive experience instead? It just so happens that the two US presidential candidates have chosen different mobile web strategies for their official websites. In the red corner is Republican candidate Mitt Romney's dedicated mobile site, while in the blue corner is incumbent president Barack Obama's responsive website. Which will prevail? Sit back, crack open a cold one, and watch the battle unfold as Brad dissect the candidates' sites to uncover best practices and common mobile web pitfalls. From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Science & Technology

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• Teaching OO to VBA developers [closed]

  - by Eugene

  I work with several developers that come from less object oriented background like (VB6, VBA) and are mostly self-taught. As part of moving away from those technologies we recently we started having weekly workshops to go over the features of C#.NET and OO practices and design principles. After a couple of weeks of basic introduction I noticed that they had a lot of problems implementing even basic code. For instance it took probably 15 minutes to implement a Stack.push() and a full hour to implement a simple Stack fully. These developers were trying to do things like passing top index as a parameter to the method, not creating an private array, using variables out of scope. But most of all not going through the "design (dia/mono)log" (I need something to do X, so maybe I'll make an array, or put it here). I am a little confused because they are smart people and are able to produce functional code in their traditional environments. I'm curious if anybody else has encountered a similar thing and if there are any particular resources, exercises, books, ideas that would be helpful in this circumstance.

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• ArchBeat Link-o-Rama for 10-19-2012

  - by Bob Rhubart

  One Week to Go: OTN Architect Day Los Angeles - Oct 25 Oracle Technology Network Architect Day in Los Angeles happens in one week. Register now to make sure you don't miss out on a rich schedule of expert technical sessions and peer interaction covering the use of Oracle technologies in cloud computing, SOA, and more. Even better: it's all free. Register now! When: October 25, 2012, 8:30am - 5:00pm. Where: Sofitel Los Angeles, 8555 Beverly Boulevard, Los Angeles, CA 90048. Moving your APEX app to the Oracle Cloud | Dimitri Gielis Oracle ACE Director (and OSN Developer Challenge co-winner) Dimitri Gielis shares the steps in the process as he moves his "DGTournament" application, along with all of its data, onto the Oracle Cloud. A brief note for customers running SOA Suite on AIX platforms | A-Team - SOA "When running Oracle SOA Suite with IBM JVMs on the AIX platform, we have seen performance slowdowns and/or memory leaks," says Christian, an architect on the Oracle Fusion Middleware A-Team. "On occasion, we have even encountered some OutOfMemoryError conditions and the concomittant Java coredump. If you are experiencing this issue, the resolution may be to configure -Dsun.reflect.inflationThreshold=0 in your JVM startup parameters." Introducing the New Face of Fusion Applications | Misha Vaughan Oracle ACE Directors Debra Lilly and Floyd Teter have already blogged about the the new face of Oracle Fusion Applications. Now Applications User Experience Architect Misha Vaughan shares a brief overview of how the Oracle Applications User Experience (UX) team developed the new look. ADF Essentials Security Implementation for Glassfish Deployment | Andrejus Baranovskis According to Oracle ACE Director Andrejus Baranovskis, Oracle ADF Essentials includes all the key ADF technologies, save one: ADF Security. In this post he illustrates a solution for filling that gap. Thought for the Day "Why are video games so much better designed than office software? Because people who design video games love to play video games. People who design office software look forward to doing something else on the weekend." — Ted Nelson Source: softwarequotes.com

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• How Can I Effectively Interview an Oracle Candidate?

  - by Tim Medora

  First, I browsed through SO for matching questions and didn't find one, but please point me in the right direction if this exact question has already been asked. I work with and around programmers of various skill levels on various platforms. I would consider my skills to be strong in terms of relational database design, query development, and basic performance tuning and administration. I'm mid-level when it comes to database theory. My team is looking to me to ensure that we have the best talent on staff, in this case, an engineer experienced in Oracle administration. To me, a well-rounded database administrator, regardless of platform, should also be competent in developing against the database so that is also a requirement. However my database skills are centralized around SQL Server 200x with experience in a few other products like SAP MaxDB, Access, and FoxPro. How can I thoroughly assess the skills of an Oracle engineer? I can ask high-level database theory questions and talk about routine tasks that are common across platforms, but I want to dig deep enough that I can be confident in the people I hire. Normally, I would alternate very specific questions that have a right/wrong answer with architectural questions that might have several valid answers. Does anyone have an interview template, specific questions, or any other knowledge that they can share? Even knowing the meaningful Oracle-related certifications would be a help. Thank you. EDIT: All the answers have been very helpful so far and I have given upvotes to everyone. I'm surprised that there are already 3 close votes on this question as "off topic". To be clear, I am specifically asking how a MS SQL Server engineer (like myself) can effectively interview a person with different but symbiotic skills. The question has already received specific, technical answers which have improved my own database design and programming skills. If this is more appropriate as a community wiki, please convert it.

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• ODI 11g - Faster Files

  - by David Allan

  Deep in the trenches of ODI development I raised my head above the parapet to read a few odds and ends and then think why don’t they know this? Such as this article here – in the past customers (see forum) were told to use a staging route which has a big overhead for large files. This KM is an example of the great extensibility capabilities of ODI, its quite simple, just a new KM that; improves the out of the box experience – just build the mapping and the appropriate KM is used improves out of the box performance for file to file data movement. This improvement for out of the box handling for File to File data integration cases (from the 11.1.1.5.2 companion CD and on) dramatically speeds up the file integration handling. In the past I had seem some consultants write perl versions of the file to file integration case, now Oracle ships this KM to fill the gap. You can find the documentation for the IKM here. The KM uses pure java to perform the integration, using java.io classes to read and write the file in a pipe – it uses java threading in order to super-charge the file processing, and can process several source files at once when the datastore's resource name contains a wildcard. This is a big step for regular file processing on the way to super-charging big data files using Hadoop – the KM works with the lightweight agent and regular filesystems. So in my design below transforming a bunch of files, by default the IKM File to File (Java) knowledge module was assigned. I pointed the KM at my JDK (since the KM generates and compiles java), and I also increased the thread count to 2, to take advantage of my 2 processors. For my illustration I transformed (can also filter if desired) and moved about 1.3Gb with 2 threads in 140 seconds (with a single thread it took 220 seconds) - by no means was this on any super computer by the way. The great thing here is that it worked well out of the box from the design to the execution without any funky configuration, plus, and a big plus it was much faster than before, So if you are doing any file to file transformations, check it out!

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• Introduction to Oracle ADF

  - by Arda Eralp

  The Oracle Application Development Framework (Oracle ADF) is an end-to-end application framework that builds on Java Platform, Enterprise Edition (Java EE) standards and open-source technologies. You can use Oracle ADF to implement enterprise solutions that search, display, create, modify, and validate data using web, wireless, desktop, or web services interfaces. Because of its declarative nature, Oracle ADF simplifies and accelerates development by allowing users to focus on the logic of application creation rather than coding details. Used in tandem, Oracle JDeveloper 11g and Oracle ADF give you an environment that covers the full development lifecycle from design to deployment, with drag-and-drop data binding, visual UI design, and team development features built in. In line with community best practices, applications you build using the Fusion web technology stack achieve a clean separation of business logic, page navigation, and user interface by adhering to a model-view-controller architecture. MVC architecture: The model layer represents the data values related to the current page The view layer contains the UI pages used to view or modify that data The controller layer processes user input and determines page navigation The business service layer handles data access and encapsulates business logic Each ADF module fits in the Fusion web application architecture. The core module in the framework is ADF Model, a data binding facility. The ADF Model layer enables a unified approach to bind any user interface to any business service, without the need to write code. The other modules that make up a Fusion web application technology stack are: ADF Business Components, which simplifies building business services. ADF Faces rich client, which offers a rich library of AJAX-enabled UI components for web applications built with JavaServer Faces (JSF). ADF Controller, which integrates JSF with ADF Model. The ADF Controller extends the standard JSF controller by providing additional functionality, such as reusable task flows that pass control not only between JSF pages, but also between other activities, for instance method calls or other task flows.

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• New CAM Editor v2.3 with Open-XDX for Open Data APIs

  - by drrwebber

  Creating actual working XML exchanges, loading data from data stores, generating XML, testing, integrating with web services and then deployment delivery takes a lot of coding and effort. Then writing the documentation, models, schema and doing naming and design rule (NDR) checks and packaging all this together (such as for NIEM IEPD use). What if there was a tool that helped you do all that easily and simply? Welcome to the new Open-XDX and the CAM Editor! Open-XDX uses code-free techniques in combination with CAM templates and visual drag and drop to rapidly design your XML exchange. Then Open-XDX will automatically generate all the SQL for you, read the database data, generate and populate the valid output XML, and filter with parameters. To complete the processing solution Open-XDX works with web services and JDBC database connections as a callable module that can be deployed plug and play with your middleware stack, all with just a few lines of Java code (about 5 actually). You can build either Query/Response or Publish/Subscribe services from existing data stores to XML literally in minutes. To see a demonstration of using Open-XDX, a MySQL data store and integrating with Oracle Web Logic server please see this short few minutes video - http://youtube.com/user/TheCameditor There is also a Quick Guide available that provides more technical insights along with a sample pack download of templates and SQL that you can try for yourself. Head on over to our project resource site to learn more, download the latest CAM Editor and see links to all the resources and materials. We look forward to seeing how the developer community is able to jump start information sharing initiatives using this new innovative approach.

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• How do I create my own programming language and a compiler for it

  - by Dave

  I am thorough with programming and have come across languages including BASIC, FORTRAN, COBOL, LISP, LOGO, Java, C++, C, MATLAB, Mathematica, Python, Ruby, Perl, Javascript, Assembly and so on. I can't understand how people create programming languages and devise compilers for it. I also couldn't understand how people create OS like Windows, Mac, UNIX, DOS and so on. The other thing that is mysterious to me is how people create libraries like OpenGL, OpenCL, OpenCV, Cocoa, MFC and so on. The last thing I am unable to figure out is how scientists devise an assembly language and an assembler for a microprocessor. I would really like to learn all of these stuff and I am 15 years old. I always wanted to be a computer scientist some one like Babbage, Turing, Shannon, or Dennis Ritchie. I have already read Aho's Compiler Design and Tanenbaum's OS concepts book and they all only discuss concepts and code in a high level. They don't go into the details and nuances and how to devise a compiler or operating system. I want a concrete understanding so that I can create one myself and not just an understanding of what a thread, semaphore, process, or parsing is. I asked my brother about all this. He is a SB student in EECS at MIT and hasn't got a clue of how to actually create all these stuff in the real world. All he knows is just an understanding of Compiler Design and OS concepts like the ones that you guys have mentioned (ie like Thread, Synchronisation, Concurrency, memory management, Lexical Analysis, Intermediate code generation and so on)

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• Transitioning from a mechanical engineer to software developer. What path to take?

  - by Patrick

  Hi all, I am 24 years old and have a BS in mechanical engineering from Mizzou. I have been working as a mechanical engineer in a big corporation for about 2 years since graduation. In this time, I have decided that I'm just not that interested in mechanical engineering topics, and I'm much more excited about web technology, website design, etc. I do a very small amount of freelance web design just to get experience, but I have no formal training yet. Ultimately I could see myself being very excited about working for a small startup in web technology, or creating and selling my own programs in more of an entrepreneurial role. What path do you recommend for transitioning into this field? Go back to school and get a BS in CS? MS in CS? Tech school for classes? Self study? I'm feeling overwhelmed by the options available, but the one thing I know for sure is that I'm excited to make a change. Thanks!

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• Game Review: Monument Valley

  Once again, it was a tweet that caught my attention... and the official description on the Play Store sounds good, too. "In Monument Valley you will manipulate impossible architecture and guide a silent princess through a stunningly beautiful world. Monument Valley is a surreal exploration through fantastical architecture and impossible geometry. Guide the silent princess Ida through mysterious monuments, uncovering hidden paths, unfolding optical illusions and outsmarting the enigmatic Crow People." So, let's check it out. What an interesting puzzle game Once again, I left some review on the Play Store: "Beautiful but short distraction Woohoo, what a great story behind the game. Using optical illusions and impossible geometries in this fantastic adventure of the silent princess just puts all the pieces perfectly together. Walking the amazing paths in the various levels and solving the riddles gives some decent hours of distraction but in the end you might have the urge to do more..." I can't remember exactly when and who tweeted about the game but honestly it caught my attention based on the simplicity of the design and the aspect that it seems to be an isometric design. The game relies heavily on optical illusions in order to guide to the silent princess Ida through her illusory adventure of impossible architecture and forgiveness. The game is set like a clockwork and you are turning, flipping and switching elements on the paths between the doors. Unfortunately, there aren't many levels and the game play lasted only some hours. Maybe there are more astonishing looking realms and interesting gimmicks in future versions. Play Store: Monument Valley Also, check out the latest game updates on the official web site of ustwo BTW, the game is also available on the Apple App Store and on Amazon Store for the Kindle Fire.

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• Is these company terms good for a programmer or should I move?

  - by o_O

  Here are some of the terms and conditions set forward by my employer. Does these make sense for a job like programming? No freelancing in any way even in your free time outside company work hours (may be okay. May be they wanted their employees to be fully concentrating on their full time job. Also they don't want their employees to do similar work for a competing client. Completely rational in that sense). - So sort of agreed. Any thing you develop like ideas, design, code etc while I'm employed there, makes them the owner of that. Seriously? Don't you think that its bad (for me)? If I'm to develop something in my free time (by cutting down sleep and hard working), outside the company time and resource, is that claim rational? I heard that Steve Wozniak had such a contract while he was working at HP. But that sort of hardware design and also those companies pay well, when compared to the peanuts I get. No other kind of works allowed. Means no open source stuffs. Fully dedicated to being a puppet for the employer, though the working environment is sort of okay. According to my assessment this place would score a 10/12 in Joel's test. So are these terms okay especially considering the fact that I'm underpaid with peanuts?

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• Which Graphics/Geometry abstraction to choose?

  - by Robz

  I've been thinking about the design for a browser app on the HTML5 canvas that simulates a 2D robot zooming around, sensing the world around it. I decided to do this from scratch just for fun. I need shapes, like polygons, circles, and lines in order to model the robot and the world it lives in. These shapes need to be drawn with different appearance attributes, like border/fill style/width/color. I also need to have geometry functions to detect intersections and containment for the robot's sensors and so that the robot doesn't go inside stuff. One idea for functions is to have two totally separate libraries, one to implement graphics (like drawShape(context, shape)) and one for geometry operations (like shapeIntersectsShape(shape1, shape2)). Or, in a more object-oriented approach, the shape objects themselves could implement methods to do their own graphics (shape.draw(context)) and geometry operations (shape1.intersects(shape2)). Then there is the data itself: whether the data to draw a shape and the data to do geometric operations on that shape should be encapsulated within the same object, or be separate structures (where one would contain the other, or both be contained inside another structure). How do existing applications that do graphics/geometry stuff deal with this? Is there one model that is best, or is each good for certain applications? Should the fact that I'm using Javascript instead of a more classical language change how I approach the design?

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• How do you make people accept code review?

  - by user7197

  All programmers have their style of programming. But some of the styles are let’s say... let’s not say. So you have code review to try to impose certain rules for good design and good programming techniques. But most of the programmers don’t like code review. They don’t like other people criticizing their work. Who do they think they are to consider themselves better than me and tell me that this is bad design, this could be done in another way. It works right? What is the problem? This is something they might say (or think but not say which is just as bad if not worse). So how do you make people accept code review without starting a war? How can you convince them this is a good thing; that will only improve their programming skills and avoid a lot of work later to fix and patch a zillion times a thing that hey... "it works"? People will tell you how to make code review (peer-programming, formal inspections etc) what to look for in a code review, studies have been made to show the number of defects that can be discovered before the software hits production etc. But how do you convince programmers to accept a code review?

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• Building Enterprise Smartphone App &ndash; Part 4: Application Development Considerations

  - by Tim Murphy

  This is the final part in a series of posts based on a talk I gave recently at the Chicago Information Technology Architects Group.  Feel free to leave feedback. Application Development Considerations Now we get to the actual building of your solutions.  What are the skills and resources that will be needed in order to develop a smartphone application in the enterprise? Language Knowledge One of the first things you need to consider when you are deciding which platform language do you either have the most in house skill base or can you easily acquire.  If you already have developers who know Java or C# you may want to use either Android or Windows Phone.  You should also take into consideration the market availability of developers.  If your key developer leaves how easy is it to find a knowledgeable replacement? A second consideration when it comes to programming languages is the qualities exposed by the languages of a particular platform.  How well does that development language and its associated frameworks support things like security and access to the features of the smartphone hardware?  This will play into your overall cost of ownership if you have to create this infrastructure on your own. Manage Limited Resources Everything is limited on a smartphone: battery, memory, processing power, network bandwidth.  When developing your applications you will have to keep your footprint as small as possible in every way.  This means not running unnecessary processes in the background that will drain the battery or pulling more data over the airwaves than you have to.  You also want to keep your on device in as compact a format as possible. Mobile Design Patterns There are a number of design patterns that have either come to life because of smartphone development or have been adapted for this use.  The main pattern in the Windows Phone environment is the MVVM (Model-View-View-Model).  This is great for overall application structure and separation of concerns.  The fun part is trying to keep that separation as pure as possible.  Many of the other patterns may or may not have strict definitions, but some that you need to be concerned with are push notification, asynchronous communication and offline data storage. Real estate is limited on smartphones and even tablets. You are also limited in the type of controls that can be represented in the UI. This means rethinking how you modularize your application. Typing is also much harder to do so you want to reduce this as much as possible.  This leads to UI patterns.  While not what we would traditionally think of as design patterns the guidance each platform has for UI design is critical to the success of your application.  If user find the application difficult navigate they will not use it. Development Process Because of the differences in development tools required, test devices and certification and deployment processes your teams will need to learn new way of working together.  This will include the need to integrate service contracts of back-end systems with mobile applications.  You will also want to make sure that you present consistency across different access points to corporate data.  Your web site may have more functionality than your smartphone application, but it should have a consistent core set of functionality.  This all requires greater communication between sub-teams of your developers. Testing Process Testing of smartphone apps has a lot more to do with what happens when you lose connectivity or if the user navigates away from your application. There are a lot more opportunities for the user or the device to perform disruptive acts.  This should be your main testing concentration aside from the main business requirements.  You will need to do things like setting the phone to airplane mode and seeing what the application does in order to weed out any gaps in your handling communication interruptions. Need For Outside Experts Since this is a development area that is new to most companies the need for experts is a lot greater. Whether these are consultants, vendor representatives or just development community forums you will need to establish expert contacts. Nothing is more dangerous for your project timelines than a lack of knowledge.  Make sure you know who to call to avoid lengthy delays in your project because of knowledge gaps. Security Security has to be a major concern for enterprise applications. You aren't dealing with just someone's game standings. You are dealing with a companies intellectual property and competitive advantage. As such you need to start by limiting access to the application itself.  Once the user is in the app you need to ensure that the data is secure at all times.  This includes both local storage and across the wire.  This means if a platform doesn’t natively support encryption for these functions you will need to find alternatives to secure your data.  You also need to keep secret (encryption) keys obfuscated or locked away outside of the application. People can disassemble the code otherwise and break your encryption. Offline Capabilities As we discussed earlier one your biggest concerns is not having connectivity.  Because of this a good portion of your code may be dedicated to handling loss of connection and reconnection situations.  What do you do if you lose the network?  Back up all your transactions and store of any supporting data so that operations can continue off line. In order to support this you will need to determine the available flat file or local data base capabilities of the platform.  Any failed transactions will need to support a retry mechanism whether it is automatic or user initiated.  This also includes your services since they will need to be able to roll back partially completed transactions.  What ever you do, don’t ignore this area when you are designing your system. Deployment Each platform has different deployment capabilities. Some are more suited to enterprise situations than others. Apple's approach is probably the most mature at the moment. Prior to the current generation of smartphone platforms it would have been Windows CE. Windows Phone 7 has the limitation that the app has to be distributed through the same network as public facing applications. You mark them as private which means that they are only accessible by a direct URL. Unfortunately this does not make them undiscoverable (although it is very difficult). This will change with Windows Phone 8 where companies will be able to certify their own applications and distribute them.  Given this Windows Phone applications need to be more diligent with application access in order to keep them restricted to the company's employees. My understanding of the Android deployment schemes is that it is much less standardized then either iOS or Windows Phone. Someone would have to confirm or deny that for me though since I have not yet put the time into researching this platform further. Given my limited exposure to the iOS and Android platforms I have not been able to confirm this, but there are varying degrees of user involvement to install and keep applications updated. At one extreme the user just goes to a website to do the install and in other case they may need to download files and perform steps to install them. Future Bluetooth Today we use Bluetooth for keyboards, mice and headsets.  In the future it could be used to interrogate car computers or manufacturing systems or possibly retail machines by service techs.  This would open smartphones to greater use as a almost a Star Trek Tricorder.  You would get you all your data as well as being able to use it as a universal remote for just about any device or machine. Better corporation controlled deployment At least in the Windows Phone world the upcoming release of Windows Phone 8 will include a private certification and deployment option that is currently not available with Windows Phone 7 (Mango). We currently have to run the apps through the Marketplace certification process and use a targeted distribution method. Platform independent approaches HTML5 and JavaScript with Web Service has become a popular topic lately for not only creating flexible web site, but also creating cross platform mobile applications.  I’m not yet convinced that this lowest common denominator approach is viable in most cases, but it does have it’s place and seems to be growing.  Be sure to keep an eye on it. Summary From my perspective enterprise smartphone applications can offer a great competitive advantage to many companies.  They are not cheap to build and should be approached cautiously.  Understand the factors I have outlined in this series, do you due diligence and see if there is a portion of your business that can benefit from the mobile experience. del.icio.us Tags: Architecture,Smartphones,Windows Phone,iOS,Android

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• Designing generic render/graphics component in C++?

  - by s73v3r

  I'm trying to learn more about Component Entity systems. So I decided to write a Tetris clone. I'm using the "style" of component-entity system where the Entity is just a bag of Components, the Components are just data, a Node is a set of Components needed to accomplish something, and a System is a set of methods that operates on a Node. All of my components inherit from a basic IComponent interface. I'm trying to figure out how to design the Render/Graphics/Drawable Components. Originally, I was going to use SFML, and everything was going to be good. However, as this is an experimental system, I got the idea of being able to change out the render library at will. I thought that since the Rendering would be fairly componentized, this should be doable. However, I'm having problems figuring out how I would design a common Interface for the different types of Render Components. Should I be using C++ Template types? It seems that having the RenderComponent somehow return it's own mesh/sprite/whatever to the RenderSystem would be the simplest, but would be difficult to generalize. However, letting the RenderComponent just hold on to data about what it would render would make it hard to re-use this component for different renderable objects (background, falling piece, field of already fallen blocks, etc). I realize this is fairly over-engineered for a regular Tetris clone, but I'm trying to learn about component entity systems and making interchangeable components. It's just that rendering seems to be the hardest to split out for me.

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• A Fresh Start

  - by Laila

  As you may already be aware, I'm no longer responsible for the .NET Reflector newsletter. That publication is now in the very capable hands of the Reflector team. But fear not; starting in early April, I'll be launching a brand new .NET Newsletter, and I invite you to enjoy the very first edition by subscribing to our new mailing list, or by updating your Simple-Talk subscriptions, and joining the .NET Newsletter mailing list. With a fresh and snappy design (it might even be described as idiosyncratic. but I can say no more at this stage), we'll be making a brand new start. Each month, a member of my team (that's the Red Gate .NET team) will host the .NET Newsletter, bringing you the choicest cuts of breaking news, the very best .NET content from Simple-Talk, alongside details of hot upcoming events. To top it off, not only will you be among the first to get access to free resources (including free wall-charts, training videos and eBooks), but you'll also get exclusive access to betas, early access programs, and special offers. We can't wait to share the new design and exciting new content with you! If you have any questions about the changes to the newsletter, please feel free to send an email to [email protected] or post a comment on my blog. If I don't hear from you before next month, then I'll simply say that I hope you enjoy the new look. Cheers, Laila

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• Oracle OpenWorld Session: “Business Driven Development with BPM: Lessons from the Real World”

  - by Ajay Khanna

  One of key values that BPM promises is “Business Empowerment”. People closest to the processes, who participate in the process every day, are the ones who know most about the process. These are the people who run day-to-day operations, people who triage customer issues, people who envision improvements and innovations. It is, therefore, imperative that when a company decides to use BPM technology to automate their business processes, business people take the driver’s seat. BPM is not an IT only project. Oracle BPM suite has been designed keeping this core tenet of BPM, Business Empowerment, in mind. The result is business user centered design of Process Composer. Process Composer is designed to let business users document their processes, analyze them using simulation, create web forms, specify business rules and even run them in testing mode using process player, to see if the designed process meets their needs. This does not mean that IT has no role in this process. In fact, Oracle BPM Suite has made it very easy for Business and IT to collaborate. The same process can be shared among business, and IT stakeholders and each can collaborate to create model-driven, process based executable applications. A process may need to integrate with multiple systems via various mechanisms, and IT leads system and data integration effort. IT helps fine tune the performance of process applications and ensures that the deployment of process application meets scalability and failover standards. In this session, we saw Harish Gaur and Satya Narayanan from Oracle demonstrate roles Business and IT play in BPM projects and how Oracle BPM Suite enables business and IT collaboration to design and automate process based applications. They also discussed real life customer stories. Some key takeaways from this session: There are no IT projects, only business initiatives, requiring IT support Identify high impact processes – critical, better BPM ROI Identify key metrics to measure process performance Align business with IT layer

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• Multiple vulnerabilities in Firefox

  - by Ritwik Ghoshal

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-3982 Denial of service (DoS) vulnerability 10.0 Firefox Solaris 10 SPARC: 145080-13 X86: 145081-12 CVE-2012-3983 Denial of service (DoS) vulnerability 10.0 CVE-2012-3986 Permissions, Privileges, and Access Controls vulnerability 6.4 CVE-2012-3988 Resource Management Errors vulnerability 9.3 CVE-2012-3990 Resource Management Errors vulnerability 10.0 CVE-2012-3991 Permissions, Privileges, and Access Controls vulnerability 9.3 CVE-2012-3992 Permissions, Privileges, and Access Controls vulnerability 5.8 CVE-2012-3993 Design Error vulnerability 9.3 CVE-2012-3994 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-3995 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4179 Resource Management Errors vulnerability 10.0 CVE-2012-4180 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4181 Resource Management Errors vulnerability 10.0 CVE-2012-4182 Resource Management Errors vulnerability 10.0 CVE-2012-4183 Resource Management Errors vulnerability 10.0 CVE-2012-4184 Permissions, Privileges, and Access Controls vulnerability 9.3 CVE-2012-4185 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4186 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4187 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4188 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-4192 Permissions, Privileges, and Access Controls vulnerability 4.3 CVE-2012-4193 Design Error vulnerability 9.3 CVE-2012-4194 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-4195 Permissions, Privileges, and Access Controls vulnerability 5.1 CVE-2012-4196 Permissions, Privileges, and Access Controls vulnerability 5.0 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page. Note: Solaris 10 patches SPARC: 145080-13 X86: 145081-12 contain the fix for all CVEs between Firefox version 10.0.7 and 10.0.12.

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