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  • How do I get an HP 1018 laser printer to work on 12.04?

    - by MInner
    edit : already printed on windows-machine Ubuntu 12.04, LJ 1018. I've tried making foo2zjs from sourse. I've downloaded firmware and placed it where necessarily manually from here I've also tried this - same as manual dowload but with some patches like stoping cups, etc.. I've fixed usbfs: process 11200 (usb) did not claim interface 0 before use problems using sudo rmmod usblp as described here. And now I have Aug 10 11:51:59 pav /usr/sbin/hplj1018: foo2zjs: usb://HP/LaserJet%201018?serial=KP07RLV... download failed. Aug 10 11:51:59 pav /usr/sbin/hplj1018: foo2zjs: loading HP LaserJet 1018 firmware /lib/firmware/hp/sihp1018.dl to CUPS USB device ... error. Before that prinet was stucking on "Sending data to printer". Now it's code is "Not connected". Unless ben@pav:~$ lsusb ... Bus 001 Device 015: ID 03f0:4117 Hewlett-Packard LaserJet 1018 Thank you.

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  • fix a broken ubuntu installation from pendrive

    - by interstar
    Something went wrong in the upgrade of my Ubuntu 13.04 to 13.10 The upgrade basically crashed halfway through. On booting I was thrown into a maintainence screen. I found some online instructions for fixing with the package manager ... Which seemed to do a lot of setting up. But then crashed saying package is in a bad inconsistent state. Now I'm in a position where Ubuntu starts again, but goes into a low-res screen and there's no WiFi. I have no Ethernet cable connection but I did download the 13.10 iso on another machine and put it on a pen drive. So I'd like to know there's a way of asking the machine from inside Ubuntu to redo its upgrade from the data on the pendrive rather than WiFi. Is this possible? Cheers Phil

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  • Partner Training on Endeca 2-Days Hands-on Fundamentals

    - by Mike.Hallett(at)Oracle-BI&EPM
    Normal 0 false false false EN-GB X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Normal 0 false false false EN-GB X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Utrecht, NL - Monday, January 28 until Tuesday, January 29 : To Register Click here   cost €475 per person Utrecht, NL - Thursday, January 31 until Friday, February 1 :  To Register Click here   cost €475 per person Oracle Belgium - Wednesday, February 6 to Thursday February 7: To Register Click here   cost €535 per person Oracle Belgium - Thursday, February 28 until Friday, March 1 :  To Register Click here   cost €535 per person The Oracle Endeca Information Discovery (OEID) fundamentals training is designed to give partners an understanding of OEID’s features, and how it complements the existing Oracle Business Intelligence suite. Participants will learn how to develop & implement solutions using a Data Discovery method.  Training is in Dutch. This is a two-day class which start with the introduction of Endeca in the proposition of Oracle Business Analytics. The underlying architecture and technology will also be covered. The majority of this fundamentals training is based on a hands-on wokrshop. In this workshop all participants will build several Endeca dashboards based on worked out examples. During this workshop we will also spend time on how to extract social media and other unstructured data combined with text enrichment. This training is developed and will be given by Aotrta Business Intelligence who is Oracle Approved Education Center for OBIEE and OEID in EMEA. Prerequisites You must bring a 64-bit laptop with you for the Hands-on labs: Attendees should have experience and familiarity with the basic concepts of business intelligence and be OPN Partners with Gold or above membership.

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  • Encrypted Home directory not auto mounting

    - by Valorin
    I somehow managed to break auto-mounting for my encrypted home directory. Every time I login via SSH, I see this: valorin@joshua:~$ ls -la total 44 dr-x------ 3 valorin valorin 4096 2012-03-17 17:10 . drwxr-xr-x 7 root root 4096 2012-03-17 11:45 .. lrwxrwxrwx 1 valorin valorin 56 2012-03-08 20:37 Access-Your-Private-Data.desktop -> /usr/share/ecryptfs-utils/ecryptfs-mount-private.desktop -rw------- 1 valorin valorin 917 2012-03-17 19:24 .bash_history drwx------ 3 valorin valorin 4096 2012-03-16 17:58 .cache lrwxrwxrwx 1 valorin valorin 33 2012-03-08 20:37 .ecryptfs -> /home/.ecryptfs/valorin/.ecryptfs -rw-r--r-- 1 root root 21954 2012-03-08 20:35 .face lrwxrwxrwx 1 valorin valorin 32 2012-03-08 20:37 .Private -> /home/.ecryptfs/valorin/.Private lrwxrwxrwx 1 valorin valorin 52 2012-03-08 20:37 README.txt -> /usr/share/ecryptfs-utils/ecryptfs-mount-private.txt -rw------- 1 root root 703 2012-03-17 17:10 .viminfo Any ideas what I've done, and how I can fix it?

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  • What if we run out of stack space in C# or Python?

    - by dotneteer
    Supposing we are running a recursive algorithm on a very large data set that requires, say, 1 million recursive calls. Normally, one would solve such a large problem by converting recursion to a loop and a stack, but what if we do not want to or cannot rewrite the algorithm? Python has the sys.setrecursionlimit(int) method to set the number of recursions. However, this is only part of the story; the program can still run our of stack space. C# does not have a equivalent method. Fortunately, both C# and Python have option to set the stack space when creating a thread. In C#, there is an overloaded constructor for the Thread class that accepts a parameter for the stack size: Thread t = new Thread(work, stackSize); In Python, we can set the stack size by calling: threading.stack_size(67108864) We can then run our work under a new thread with increased stack size.

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  • Drupal + LDAP + Automatic

    - by WernerCD
    I've got Drupal 6 setup within a XAMPP test area. I have LDAP authentication, groups and data working against Active Directory. What I want... is since I'm on an intranet where users are logged in via user-names... is for automatic authentication, without the need to login via the website. If it's more difficult than its worth, it's no major hassle, but I'd like to know if it's possible that when my users visit our intranet they auto-magically authenticate with their already logged in Windows session. Ultimately, I may switch to IIS, but I do like having a portable, easy to backup/copy/test setup so for now I'm going to see if I can get this working in XAMPP.

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  • Can static and dynamically typed languages be seen as different tools for different types of jobs?

    - by Erik Reppen
    Yes, similar questions have been asked but always with the aim of finding out 'which one is better.' I'm asking because I came up as a dev primarily in JavaScript and don't really have any extensive experience writing in statically typed languages. In spite of this I definitely see value in learning C for handling demanding operations at lower levels of code (which I assume has a lot to do with static vs dynamic at the compiler level), but what I'm trying to wrap my head around is whether there are specific project contexts (maybe certain types of dynamic data-intensive operations?) involving things other than performance where it makes a lot more sense to go with Java or C# vs. something like Python.

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  • Can not print after upgrading from 12.x to 14.04

    - by user318889
    After upgrading from V12.04 to V14.04 I am not able to print. I am using an HP LaserJet 400 M451dn. The printer troubleshooter told me that there is no solution to the problem. This is the output of the advanced diagnositc output. (Due to limited space I cut the output!) Can anybody tell me what is going wrong. I am using the printer via USB ? Page 1 (Scheduler not running?): {'cups_connection_failure': False} Page 2 (Is local server publishing?): {'local_server_exporting_printers': False} Page 3 (Choose printer): {'cups_dest': , 'cups_instance': None, 'cups_queue': u'HP-LaserJet-400-color-M451dn', 'cups_queue_listed': True} Page 4 (Check printer sanity): {'cups_device_uri_scheme': u'hp', 'cups_printer_dict': {'device-uri': u'hp:/usb/HP_LaserJet_400_color_M451dn?serial=CNFF308670', 'printer-info': u'Hewlett-Packard HP LaserJet 400 color M451dn', 'printer-is-shared': True, 'printer-location': u'Pinatubo', 'printer-make-and-model': u'HP LJ 300-400 color M351-M451 Postscript (recommended)', 'printer-state': 4, 'printer-state-message': u'', 'printer-state-reasons': [u'none'], 'printer-type': 8556636, 'printer-uri-supported': u'ipp://localhost:631/printers/HP-LaserJet-400-color-M451dn'}, 'cups_printer_remote': False, 'hplip_output': (['', '\x1b[01mHP Linux Imaging and Printing System (ver. 3.14.6)\x1b[0m', '\x1b[01mDevice Information Utility ver. 5.2\x1b[0m', '', 'Copyright (c) 2001-13 Hewlett-Packard Development Company, LP', 'This software comes with ABSOLUTELY NO WARRANTY.', 'This is free software, and you are welcome to distribute it', 'under certain conditions. See COPYING file for more details.', '', '', '\x1b[01mhp:/usb/HP_LaserJet_400_color_M451dn?serial=CNFF308670\x1b[0m', '', '\x1b[01mDevice Parameters (dynamic data):\x1b[0m', '\x1b[01m Parameter Value(s) \x1b[0m', ' ---------------------------- ----------------------------------------------------------', ' back-end hp ', " cups-printers ['HP-LaserJet-400-color-M451dn'] ", ' cups-uri hp:/usb/HP_LaserJet_400_color_M451dn?serial=CNFF308670 ', ' dev-file ', ' device-state -1 ', ' device-uri hp:/usb/HP_LaserJet_400_color_M451dn?serial=CNFF308670 ', ' deviceid ', ' error-state 101 ', ' host ', ' is-hp True ', ' panel 0 ', ' panel-line1 ', ' panel-line2 ', ' port 1 ', ' serial CNFF308670 ', ' status-code 5002 ', ' status-desc ', '\x1b[01m', 'Model Parameters (static data):\x1b[0m', '\x1b[01m Parameter Value(s) \x1b[0m', ' ---------------------------- ----------------------------------------------------------', ' align-type 0 ', ' clean-type 0 ', ' color-cal-type 0 ', ' copy-type 0 ', ' embedded-server-type 0 ', ' fax-type 0 ', ' fw-download False ', ' icon hp_color_laserjet_cp2025.png ', ' io-mfp-mode 1 ', ' io-mode 1 ', ' io-support 6 ', ' job-storage 0 ', ' linefeed-cal-type 0 ', ' model HP_LaserJet_400_color_M451dn ', ' model-ui HP LaserJet 400 Color m451dn ', ' model1 HP LaserJet 400 Color M451dn ', ' monitor-type 0 ', ' panel-check-type 0 ', ' pcard-type 0 ', ' plugin 0 ', ' plugin-reason 0 ', ' power-settings 0 ', ' ppd-name lj_300_400_color_m351_m451 ', ' pq-diag-type 0 ', ' r-type 0 ', ' r0-agent1-kind 4 ', ' r0-agent1-sku CE410A/CE410X ', ' r0-agent1-type 1 ', ' r0-agent2-kind 4 ', ' r0-agent2-sku CE411A ', ' r0-agent2-type 4 ', ' r0-agent3-kind 4 ', ' r0-agent3-sku CE413A ', ' r0-agent3-type 5 ', ' r0-agent4-kind 4 ', ' r0-agent4-sku CE412A ', ' r0-agent4-type 6 ', ' scan-src 0 ', ' scan-type 0 ', ' status-battery-check 0 ', ' status-dynamic-counters 0 ', ' status-type 3 ', ' support-released True ', ' support-subtype 2202411 ', ' support-type 2 ', ' support-ver 3.12.2 ', " tech-class ['Postscript'] ", " tech-subclass ['Normal'] ", ' tech-type 4 ', ' usb-pid 3882 ', ' usb-vid 1008 ', ' wifi-config 0 ', '\x1b[01m', 'Status History (most recent first):\x1b[0m', '\x1b[01m Date/Time Code Status Description User Job ID \x1b[0m', ' -------------------- ----- ---------------------------------------- -------- --------', ' 08/21/14 00:07:25 5012 Device communication error richard 0 ', ' 08/20/14 13:42:44 500 Started a print job richard 4214 ', '', '', 'Done.', ''], ['\x1b[35;01mwarning: No display found.\x1b[0m', '\x1b[31;01merror: hp-info -u/--gui requires Qt4 GUI support. Entering interactive mode.\x1b[0m', '\x1b[31;01merror: Unable to communicate with device (code=12): hp:/usb/HP_LaserJet_400_color_M451dn?serial=CNFF308670\x1b[0m', '\x1b[31;01merror: Error opening device (Device not found).\x1b[0m', ''], 0), 'is_cups_class': False, 'local_cups_queue_attributes': {'charset-configured': u'utf-8', 'charset-supported': [u'us-ascii', u'utf-8'], 'color-supported': True, 'compression-supported': [u'none', u'gzip'], 'copies-default': 1, 'copies-supported': (1, 9999), 'cups-version': u'1.7.2', 'device-uri': u'hp:/usb/HP_LaserJet_400_color_M451dn?serial=CNFF308670', 'document-format-default': u'application/octet-stream', 'document-format-supported': [u'application/octet-stream', u'application/pdf', u'application/postscript', u'application/vnd.adobe-reader-postscript', u'application/vnd.cups-command', u'application/vnd.cups-pdf', u'application/vnd.cups-pdf-banner', u'application/vnd.cups-postscript', u'application/vnd.cups-raw', u'application/vnd.samsung-ps', u'application/x-cshell', u'application/x-csource', u'application/x-perl', u'application/x-shell', u'image/gif', u'image/jpeg', u'image/png', u'image/tiff', u'image/urf', u'image/x-bitmap', u'image/x-photocd', u'image/x-portable-anymap', u'image/x-portable-bitmap', u'image/x-portable-graymap', u'image/x-portable-pixmap', u'image/x-sgi-rgb', u'image/x-sun-raster', u'image/x-xbitmap', u'image/x-xpixmap', u'image/x-xwindowdump', u'text/css', u'text/html', u'text/plain'], 'finishings-default': 3, 'finishings-supported': [3], 'generated-natural-language-supported': [u'en-us'], 'ipp-versions-supported': [u'1.0', u'1.1', u'2.0', u'2.1'], 'ippget-event-life': 15, 'job-creation-attributes-supported': [u'copies', u'finishings', u'ipp-attribute-fidelity', u'job-hold-until', u'job-name', u'job-priority', u'job-sheets', u'media', u'media-col', u'multiple-document-handling', u'number-up', u'output-bin', u'orientation-requested', u'page-ranges', u'print-color-mode', u'print-quality', u'printer-resolution', u'sides'], 'job-hold-until-default': u'no-hold', 'job-hold-until-supported': [u'no-hold', u'indefinite', u'day-time', u'evening', u'night', u'second-shift', u'third-shift', u'weekend'], 'job-ids-supported': True, 'job-k-limit': 0, 'job-k-octets-supported': (0, 470914416), 'job-page-limit': 0, 'job-priority-default': 50, 'job-priority-supported': [100], 'job-quota-period': 0, 'job-settable-attributes-supported': [u'copies', u'finishings', u'job-hold-until', u'job-name', u'job-priority', u'media', u'media-col', u'multiple-document-handling', u'number-up', u'output-bin', u'orientation-requested', u'page-ranges', u'print-color-mode', u'print-quality', u'printer-resolution', u'sides'], 'job-sheets-default': (u'none', u'none'), 'job-sheets-supported': [u'none', u'classified', u'confidential', u'form', u'secret', u'standard', u'topsecret', u'unclassified'], 'jpeg-k-octets-supported': (0, 470914416), 'jpeg-x-dimension-supported': (0, 65535), 'jpeg-y-dimension-supported': (1, 65535), 'marker-change-time': 0, 'media-bottom-margin-supported': [423], 'media-col-default': u'(unknown IPP value tag 0x34)', 'media-col-supported': [u'media-bottom-margin', u'media-left-margin', u'media-right-margin', u'media-size', u'media-source', u'media-top-margin', u'media-type'], 'media-default': u'iso_a4_210x297mm', 'media-left-margin-supported': [423], 'media-right-margin-supported': [423],

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  • Ubuntu 10.10 freezes

    - by albert green
    Hi, I have the following configuration: CPU: amd athlon 64bit Motherboard: Phoenix with awardBIOS v6.0 APIC mode = disabled Video card: GeForce 5500 Sound card: soundblaster live 24bit RAM: 1.5GB Partitions: ext3 32GB where I installed Ubuntu. Swap 500MB. 180GB Fat32 unmounted. contains data only. I installed Ubuntu 10.10 and used the "Additional driver" program to get the nVidia proprietary drivers. The system works for sometime and randomly freezes. The mouse and keyboard are not responding and I am not able to do a SSH. The only solution is pressing the power button. I tried Kubuntu 10.10 and 32/64-bits versions as well. There is nothing in the logs to suggest what the reason might be. Any help will be appreciated. Thanks in advance.

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  • ASP.NET Pager Supports Keyboard Navigation - v2010 vol 1

    Here’s a feature for all your users who are keyboard ninjas. The ASPxPager control now provides better keyboard support - increasing both web site usability and accessibility. If you are using a DevExpress ASP.NET Pager control - either standalone or integrated into our data-aware controls like the ASPxGridView – then you can now navigate to the previous/next page by pressing the CTRL+ARROW key combinations. To see a standalone version of our ASP.NET Pager, check out this slick movie-theme...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • How are Java ByteBuffer's limit and position variable's updated?

    - by Dummy Derp
    There are two scenarios: writing and reading Writing: Whenever I write something to the ByteBuffer by calling its put(byte[]) method the position variable is incremented as: current position + size of byte[] and limit stays at the max. If, however, I put the data in a view buffer then I will have to, manually, calculate and update the position Before I call the write(ByteBuffer) method of the channel to write something, I will have to flip() the Bytebuffer so that position points to zero and limit points to the last byte that was written to the ByteBuffer. Reading: Whenever I call the read(ByteBuffer) method of a channel to read something, the position variable stays at 0 and the limit variable of the ByteBuffer points to the last byte that was read. So, if the ByteBuffer is smaller than the file being read, the limit variable is pushed to max This means that the ByteBuffer is already flipped and I can proceed to extracting the values from the ByteBuffer. Please, correct me where I am wrong :)

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  • How to resolve "Google can't find your site's robots.txt" error?

    - by Manivasagam
    I've recently found that "Google can't find your site's robots.txt" in crawl errors. When I tried Fetching as Google, I got result "SUCCESS", then I tried looking at crawl errors and it still shows "Google can't find your site's robots.txt". What can I do to resolve this issue? Before this issue arose, my site was indexed within a few mintues, but now I find that it took time to be indexed in Google's search. When I access http://mydomain.com/robots.txt, it shows the data below: User-agent: *Disallow: /wp-admin/ Disallow: /wp-includes/ I found Blocked URLs = 0, also no any other errors. Is there any other thing I need to change? Or what could be the solution for this? Any help would be appreciated.

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  • How long can a user remember what they were working on? [migrated]

    - by GlenPeterson
    A web application lets the user browse its screens for future or past months. The time period the user is currently viewing follows the user through every screen of the system. But users can be logged in for a month or more. After a certain period of inactivity, we will prompt the user: You were viewing November 2008 when you last clicked. Want to view the current (default) time period instead? How long between user clicks should we wait to show this message? I'm guessing somewhere between 30 minutes and 3 hours most people will forget what they were doing, but I'd love to have some data, or someone's experience to base it on. Other suggestions related to this issue?

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  • Eliminating Downtime During Database Upgrades: A Customer Case Study

    - by irem.radzik(at)oracle.com
    Planned outages, such as database, OS, hardware upgrades and migrations, are a fact of life. Even though they are "planned" and many of them are performed during "off business hours", they can still interrupt operations-- especially for global operations and online businesses. For this reason many IT organizations postpone these critical infrastructure improvement projects, which in turn result in delays in advancing business operations. This week, on Thursday January 13th, we will host a free webcast on this topic, and will feature Oracle GoldenGate's customer Atmos Energy. Atmos Energy implemented Oracle GoldenGate for eliminating downtime during their database upgrade from Oracle Database 8.1.7 to Oracle Database 11.1.0.7. Jos Francis, Lead DBA for Atmos, and Ronald Nedd, Sr. DBA for Atmos, will be presenting their database upgrade project and their solution architecture. Join us at this live webcast and hear from our customer and product management how to eliminate planned outages with Oracle GoldenGate's real-time, heterogeneous data replication capabilities.

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  • Pro Google App Engine developer interview questions (with answers)

    - by WooYek
    What are good questions to determine if applicant is pro Google App Engine developer? Questions that can distinguish that someone is not an ad-hoc GAE programmer, but is really doing professional GAE development, with all areas concerned (eg. performance, transactions, async/batch data processing). Please provide answers, so an intermediate developer (such as myself :) can interview someone more experienced. Please avoid open questions. If possible please provide a link to a documentation part that's covering a topic in question. Please keep one interview question/answer per response for better reading experience and easier interview preparation.

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  • Talend lance la première plate-forme unifiée de gestion de données : ce qui va changer avec Talend 4

    TALEND LANCE LA PREMIÈRE PLATE-FORME UNIFIÉE DE GESTION DE DONNÉES DU MARCHÉ Talend, leader de l'intégration de données open source avec plus de 1.000 clients payants (dont eBay, Virgin Mobile, Sony Online Entertainment, Allianz, etc.), lance la première plate-forme unifiée de gestion de données. Avec plus de 7 millions de téléchargements, les solutions de gestion de données de Talend sont les plus utilisées et les plus déployées au monde. La société est présente en Amérique du Nord, en Europe et en Asie, et s'appuie sur un réseau mondial de partenaires. Cette nouvelle devrait donc avoir un fort impact mondial. Talend 4.0 unifie l'intégration de données, la qualité des données et le Master Data Management pour améli...

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  • EISK&ndash;Employee Info Starter Kit 5.0

    - by Tiago Salgado
    Employee Info Starter Kit is an open source project that is highly influenced by the concept ‘Pareto Principle’ or 80-20 rule, where it is targeted to enable a web developer to gain 80% productivity with 20% of effort with respect to learning curve and production. It is intended to address different types of real world challenges faced by web application developers when performing common CRUD operations. Using a single database table ‘Employee’, the current release illustrates how to utilize Microsoft ASP.NET 4.0 Web Form Data Controls, Entity Framework 4.0 and Visual Studio 2010 effectively in that context.   More information on codeplex project site.

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  • EclipseLink Moxy Provider for JAX-RS and JAX-WS

    - by arungupta
    EclipseLink MOXy is a JAXB provider bundled in GlassFish 3.1.2. In addition to JAXB RI, it provides XPath Based Mapping, better support for JPA entities, native JSON binding and many other features. Learn more about MOXy and JAXB examples on their wiki. Blaise blogged about how MOXy can be leveraged to create a JAX-WS service.You just need to provide data-binding attribute in sun-jaxws.xml and then all the XPath-based mapping can be specified on JAXB beans. MOXy can also be used as JAX-RS JSON provider on server-side and client-side. How are you using MOXy in your applications ?

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  • Ask The Readers: How Do You Organize Your Apps?

    - by Jason Fitzpatrick
    Application organization and launching has improved significantly over the years but there’s always room for improvement and customization. This week we’re interested in hearing about your tips, tricks, and tools for efficiently organizing and launching your apps. Do you stick with the OS defaults? Do you use third-party app launchers to streamline your workflow? Whether you’ve done some minor tweaking to the Start Menu or installed a brand new application dock, we want to hear all about it. Sound off in the comments with your tips and tricks for avoiding time wasted searching for application shortcuts–check back in on Friday for the What You Said roundup to see how your fellow readers are wrangling their applications. The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos

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  • Does semi-normalization exist as a concept? Is it "normalized"?

    - by Gracchus
    If you don't mind, a tldr on my experience: My experience tldr I have an application that's heavily dependent upon uncertainty, a bane to database design. I tried to normalize it as best as I could according to the capabilities of my database of choice, but a "simple" query took 50ms to read. Nosql appeals to me, but I can't trust myself with it, and besides, normalization has cut down my debugging time immensely over and over. Instead of 100% normalization, I made semi-redundant 1:1 tables with very wide primary keys and equivalent foreign keys. Read times dropped to a few ms, and write times barely degraded. The semi-normalized point Given this reality, that anyone who's tried to rely upon views of fully normalized data is aware of, is this concept codified? Is it as simple as having wide unique and foreign keys, or are there any hidden secrets to this technique? Or is uncertainty merely a special case that has extremely limited application and can be left on the ash heap?

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  • Why does calling CreateDXGIFactory prevent my program from exiting?

    - by smoth190
    I'm using CreateDXGIFactory to get the graphics adapters and display modes. When I call it, it works fine and I get all the data. However, when I exit my program, the main Win32 thread exits, but something stays open because it keeps debugging. Does CreateDXGIFactory create an extra thread and I'm not closing it? I don't understand. The only thing I would suspect is that in the documentation it says it doesn't work if it's called from DllMain. It is in a DLL, but it's not called from DllMain. And it doesn't fail, either. I'm using DirectX 11. Here is the function that initializes DirectX. I haven't gotten past retrieving the refresh rate because of this problem. I commented everything out to pinpoint the problem. bool CGraphicsManager::InitDirectX(HWND hWnd, int width, int height) { HRESULT result; IDXGIFactory* factory; IDXGIOutput* output; IDXGIAdapter* adapter; DXGI_MODE_DESC* displayModes; DXGI_ADAPTER_DESC adapterDesc; unsigned int modeCount = 0; unsigned int refreshNum = 0; unsigned int refreshDen = 0; //First, we need to get the monitors refresh rater result = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&factory); //if(FAILED(result)) //{ //MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to create DXGI factory\nError:\n%s"), DXGetErrorDescription(result)); //return false; //} /*//Create a graphics card adapter result = factory->EnumAdapters(0, &adapter); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get graphics adapters\nError:\n%s"), DXGetErrorDescription(result)); return false; } //Get the output result = adapter->EnumOutputs(0, &output); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get adapter output\nError:\n%s"), DXGetErrorDescription(result)); return false; } //Get the modes result = output->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &modeCount, 0); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get mode count\nError:\n%s"), DXGetErrorDescription(result)); return false; } displayModes = new DXGI_MODE_DESC[modeCount]; result = output->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &modeCount, displayModes); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get display modes\nError:\n%s"), DXGetErrorDescription(result)); return false; } //Now we need to find one for our screen size for(unsigned int i = 0; i < modeCount; i++) { if(displayModes[i].Width == (unsigned int)width) { if(displayModes[i].Height == (unsigned int)height) { refreshNum = displayModes[i].RefreshRate.Numerator; refreshDen = displayModes[i].RefreshRate.Denominator; break; } } } //Store the video card data result = adapter->GetDesc(&adapterDesc); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get adapter description\nError:\n%s"), DXGetErrorDescription(result)); return false; } m_videoCard = new CVideoCard(); MemoryUtil::CreateGameObject(m_videoCard); m_videoCard->VideoCardMemory = (unsigned int)(adapterDesc.DedicatedVideoMemory); wcstombs_s(0, m_videoCard->VideoCardDescription, 128, adapterDesc.Description, 128);*/ //ReleaseCOM(output); //ReleaseCOM(adapter); ReleaseCOM(factory); //DeletePointerArray(displayModes); return true; } Also, I don't know if this means anything, but this is some of the output log when the function is commented out: //... 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\msvcr100d.dll', Symbols loaded. 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\imm32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\msctf.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\uxtheme.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Program Files (x86)\Common Files\microsoft shared\ink\tiptsf.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\ole32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\oleaut32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\clbcatq.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\oleacc.dll', Cannot find or open the PDB file The program '[6560] LostRock.exe: Native' has exited with code 0 (0x0). And when it isn't commented out... //... 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\cfgmgr32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\devobj.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\wintrust.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\crypt32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\msasn1.dll', Cannot find or open the PDB file 'LostRock.exe': Unloaded 'C:\Windows\SysWOW64\setupapi.dll' 'LostRock.exe': Unloaded 'C:\Windows\SysWOW64\devobj.dll' 'LostRock.exe': Unloaded 'C:\Windows\SysWOW64\cfgmgr32.dll' 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\clbcatq.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\oleacc.dll', Cannot find or open the PDB file The thread 'Win32 Thread' (0xb94) has exited with code 0 (0x0). The program '[8096] LostRock.exe: Native' has exited with code 0 (0x0). //This is called when I click "Stop Debugging" P.S. I know it is CreateDXGIFactory because if I comment it out, the program exits correctly.

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  • New MySQL 5.6 Developer Certification and Training

    - by Breanne Cooley
    For those of you who work with MySQL, we've got some great news for you! A wide range of Oracle MySQL teams, including training, engineering, sales consulting and members of MySQL Support, collected content for the new MySQL 5.6 Developer Certification exam. These team members assist developers and DBAs with MySQL questions on a daily basis. They understand what developers need to know to successfully develop applications against MySQL Server 5.6. The MySQL 5.6 Developer Certification Exam details are listed here.  Naturally, this certification process covers the same ground as Oracle's MySQL Training for Developers course, making it ideal for reviewing topics to help you pass the exam. More importantly, you will learn how to develop successful applications that use MySQL Server 5.6 as a data store.  -Diana Gray, Principal Curriculum Project Manager, Oracle University

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  • Which of these algorithms is best for my goal?

    - by JonathonG
    I have created a program that restricts the mouse to a certain region based on a black/white bitmap. The program is 100% functional as-is, but uses an inaccurate, albeit fast, algorithm for repositioning the mouse when it strays outside the area. Currently, when the mouse moves outside the area, basically what happens is this: A line is drawn between a pre-defined static point inside the region and the mouse's new position. The point where that line intersects the edge of the allowed area is found. The mouse is moved to that point. This works, but only works perfectly for a perfect circle with the pre-defined point set in the exact center. Unfortunately, this will never be the case. The application will be used with a variety of rectangles and irregular, amorphous shapes. On such shapes, the point where the line drawn intersects the edge will usually not be the closest point on the shape to the mouse. I need to create a new algorithm that finds the closest point to the mouse's new position on the edge of the allowed area. I have several ideas about this, but I am not sure of their validity, in that they may have far too much overhead. While I am not asking for code, it might help to know that I am using Objective C / Cocoa, developing for OS X, as I feel the language being used might affect the efficiency of potential methods. My ideas are: Using a bit of trigonometry to project lines would work, but that would require some kind of intense algorithm to test every point on every line until it found the edge of the region... That seems too resource intensive since there could be something like 200 lines that would have each have to have as many as 200 pixels checked for black/white.... Using something like an A* pathing algorithm to find the shortest path to a black pixel; however, A* seems resource intensive, even though I could probably restrict it to only checking roughly in one direction. It also seems like it will take more time and effort than I have available to spend on this small portion of the much larger project I am working on, correct me if I am wrong and it would not be a significant amount of code (100 lines or around there). Mapping the border of the region before the application begins running the event tap loop. I think I could accomplish this by using my current line-based algorithm to find an edge point and then initiating an algorithm that checks all 8 pixels around that pixel, finds the next border pixel in one direction, and continues to do this until it comes back to the starting pixel. I could then store that data in an array to be used for the entire duration of the program, and have the mouse re-positioning method check the array for the closest pixel on the border to the mouse target position. That last method would presumably execute it's initial border mapping fairly quickly. (It would only have to map between 2,000 and 8,000 pixels, which means 8,000 to 64,000 checked, and I could even permanently store the data to make launching faster.) However, I am uncertain as to how much overhead it would take to scan through that array for the shortest distance for every single mouse move event... I suppose there could be a shortcut to restrict the number of elements in the array that will be checked to a variable number starting with the intersecting point on the line (from my original algorithm), and raise/lower that number to experiment with the overhead/accuracy tradeoff. Please let me know if I am over thinking this and there is an easier way that will work just fine, or which of these methods would be able to execute something like 30 times per second to keep mouse movement smooth, or if you have a better/faster method. I've posted relevant parts of my code below for reference, and included an example of what the area might look like. (I check for color value against a loaded bitmap that is black/white.) // // This part of my code runs every single time the mouse moves. // CGPoint point = CGEventGetLocation(event); float tX = point.x; float tY = point.y; if( is_in_area(tX,tY, mouse_mask)){ // target is inside O.K. area, do nothing }else{ CGPoint target; //point inside restricted region: float iX = 600; // inside x float iY = 500; // inside y // delta to midpoint between iX,iY and tX,tY float dX; float dY; float accuracy = .5; //accuracy to loop until reached do { dX = (tX-iX)/2; dY = (tY-iY)/2; if(is_in_area((tX-dX),(tY-dY),mouse_mask)){ iX += dX; iY += dY; } else { tX -= dX; tY -= dY; } } while (abs(dX)>accuracy || abs(dY)>accuracy); target = CGPointMake(roundf(tX), roundf(tY)); CGDisplayMoveCursorToPoint(CGMainDisplayID(),target); } Here is "is_in_area(int x, int y)" : bool is_in_area(NSInteger x, NSInteger y, NSBitmapImageRep *mouse_mask){ NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; NSUInteger pixel[4]; [mouse_mask getPixel:pixel atX:x y:y]; if(pixel[0]!= 0){ [pool release]; return false; } [pool release]; return true; }

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  • CS Concentrations and Career Paths

    - by xbonez
    I'm approaching the end of Sophomore year in college (Studying Computer Science), and very soon I'm going to have to decide on my concentration, but I honestly don't know what each concentration means. I basically have two questions: 1. How much influence does your concentration have on your career path? For example, would a video game development company only look at people with a concentration in Game Development? 2.It would be great if you guys could, in a line or two, tell me what sort of jobs am I looking at for each of the concentrations? I need to pick at least two of the 9 below. - Algorithms and Data Structures - Artificial Intelligence - Computer and Network Society - Computer graphics and vision - Human-Computer Interaction - Game Development and Design - Numeric and Symbolic Computation - Programming languages - Systems

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  • VSDB to SSDT Series : Introduction

    - by Etienne Giust
    At the office, we extensively use VS2010 SQL Server 2008 Database Projects and SQL Server 2008 Server Projects  in our Visual Studio 2010 solutions. With Visual Studio 2012, those types of projects are replaced by the  SQL Server Database Project  using the SSDT (SQL Server Data Tools) technology. I started investigating the shift from Visual Studio 2010 to Visual Studio 2012 and specifically what needs to be done concerning those database projects in terms of painless migration, continuous integration and standalone deployment. I will write my findings in a series of 4 short articles: Part 1 will be about the database projects migration process and the cleaning up that ensues Part 2 will be about creating SQL Server 2008 Server Projects equivalents with the new SSDT project type Part 3 will introduce a replacement to the vsdbcmd.exe command used for deployment in our continuous integration process Part 4 will explain how to create standalone packages of SSDT projects for deployment on non accessible servers (such as a production server)

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