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  • Is there a media player that allows me to group together radio streams which are just mirrors of the

    - by rakete
    I find it really annoying that for some radio stations, which have two or more servers to cope with the network load, there is not one single entry in amaroks playlist but two or more entries. This makes it hard to pick the radio station from the list I like to listen to because all the entries are always shown with the last played track as name, and even if I only have a few radio stations in my list there will eventually be many different entries. And, if I use the keyboard shortcuts to navigate the playlist I always have to remember that radio station X has for example four entries in the playlist, so I have to press the shortcut for switching tracks four times to actually switch the to the next station. Now, ideally I would like some solution for amarok, but if someone knows of another media player that does this or something I would appreciate that information as well.

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  • Pure functional programming and game state

    - by Fu86
    Is there a common technique to handle state (in general) in a functional programming language? There are solutions in every (functional) programming language to handle global state, but I want to avoid this as far as I could. All state in a pure functional manner are function parameters. So I need to put the whole game state (a gigantic hashmap with the world, players, positions, score, assets, enemies, ...)) as a parameter to all functions which wants to manipulate the world on a given input or trigger. The function itself picks the relevant information from the gamestate blob, do something with it, manipulate the gamestate and return the gamestate. But this looks like a poor mans solution for the problem. If I put the whole gamestate into all functions, there is no benefit for me in contrast to global variables or the imperative approach. I could put just the relevant information into the functions and return the actions which will be taken for the given input. And one single function apply all the actions to the gamestate. But most functions need a lot of "relevant" information. move() need the object position, the velocity, the map for collision, position of all enemys, current health, ... So this approach does not seem to work either. So my question is how do I handle the massive amount of state in a functional programming language -- especially for game development?

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  • dhcp code for pxe server

    - by avoq
    I'm trying to understand every single line of the following script but to no avail. I'd be glad if someone could help me. For sure I know its purpose is to start the DHCP server as well as the TFTP...But I'm stuck: killall dnsmasq 2>/dev/null dnsmasq --enable-tftp --tftp-root=$PXEDATA/boot --dhcp-boot=pxelinux.0,"$IP",$IP --dhcp-range=$(echo $IP | cut -d. -f1-3).50,$(echo $IP | cut -d. -f1-3).250, infinite --dhcp-option=option:router,192.168.0.254 --log-dhcp Why killall, why dnsmasq 2 What does "2" stand for? "--" what does it mean? Thanks a lot.

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  • How can I make Excel documents open in different windows?

    - by Eugene
    Office 2007, Windows Server 2008 x64. How can I make Excel so that when I double-click a document, it opens in a new Excel instance, so that I can easily view them side-by-side as separate windows and not using the View-Arrange All functionality? Now I have to go to the task bar, click on one document to see it and then click on the other document in the task bar to switch to that one. As the alternative, I close one document, open a new Excel window, then drag the document in there. Thank you.

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  • Catch headset pause/play keypresses in Windows

    - by akshay2000
    I have a new Ultrabook which has single audio jack for input and output instead for separate 3.5 mm jacks we used to have on older machines. The jack is probably similar to American Audio Jack specification or like the one found on Macbook Pro. I have tried to use it with the Apple, HTC, Nokia earphones which ship with most of the smartphones. Microphone on the headset works the way it should. Thing is that the headsets also come with remote controls to control volume and playback. I am sure that those key presses are sent to the Windows. I was hoping to catch those events and bind those to actual media keys so that I can control music playback. I guess this happens on Macs. I want to do the similar thing on the Windows. I'm just not sure where I can catch the events. Driver level? Application level?

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  • In an online questionnaire, what is a best way to design a database for keeping track of users all attempts?

    - by user1990525
    We have a web app where users can take online exams. Exam admin will create a questionnaire. A questionnaire can have many Questions. Each question is a multiple choice question (MCQ). Lets say an admin creates a questionnaire with 10 questions. Users attempt those questions. Now, unlike real exams users can attempt single questionnaire multiple times. And we have to keep track of his all attempts. e.g. User_id Questionnaire_id question_id answer attempt_date attempt_no 1 1 1 a 1 June 2013 1 1 1 2 b 1 June 2013 1 1 1 1 c 2 June 2013 2 1 1 2 d 2 June 2013 2 Now it can also happen that after user has attempted same questionnare twice, admin can delete a question from same questionnaire, but users attempt history should still have reference to that so that user can see his that question in his attempt history in spite of admin deleting that question. If user now attempts this changed questionnaire he should see only 1 question. User_id Questionnaire_id question_id answer attempt_date attempt_no 1 1 1 a 3 June 2013 3 Also, after this user modified some part of question, users attempt history should show question before modification while any new attempt should show modified question. How do we manage this at the database level? My first gut feeling was that, For deletes, do not do physical delete, just make a question inactive so that history can still keep track of users attempt. For modifications, create versions for questions and each new attempt refres to latest version of each question and history keeping reference to version of question at attempt time.

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  • OSB, Service Callouts and OQL

    - by Sabha
    Oracle Fusion Middleware customers use Oracle Service Bus (OSB) for virtualizing Service endpoints and implementing stateless service orchestrations. Behind the performance and speed of OSB, there are a couple of key design implementations that can affect application performance and behavior under heavy load. One of the heavily used feature in OSB is the Service Callout pipeline action for message enrichment and invoking multiple services as part of one single orchestration. Overuse of this feature, without understanding its internal implementation, can lead to serious problems. This series will delve into OSB internals, the problem associated with usage of Service Callout under high loads, diagnosing it via thread dump and heap dump analysis using tools like ThreadLogic and OQL (Object Query Language) and resolving it. The first section in the series will mainly cover the threading model used internally by OSB for implementing Route Vs. Service Callouts. The second section of the "OSB, Service Callouts and OQL" blog posting will delve into thread dump analysis of OSB server and detecting threading issues relating to Service Callout and using Heap Dump and OQL to identify the related Proxies and Business services involved. The final section of the series will focus on the corrective action to avoid Service Callout related OSB serer hangs. Before we dive into the solution, we need to briefly discus about Work Managers in WLS. Please refer to the blog posting for more details.

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  • Migrating Gmail to Office 365

    - by user218699
    Good Morning, I have been setting up Office 365 for my organization. We are currently using Gmail. I have synced our local Active Directory server w/ Office 365, as well as our domains. The problem I am having has to do with migrating mailboxes from Gmail to Office 365. I have been using this article to walk me through the process: http://technet.microsoft.com/en-us/library/dn568114.aspx The issue arises when I begin to sync the mailboxes. Currently I have been trying to sync my own mailbox as a test. The synchronization process has been going on for about 15 hours (for just one mailbox) with no errors or any information given by Office 365, other than the "Syncing" status on the migration page in the Exchange Admin Center. Is syncing a single mailbox supposed to take this long, or have I missed a step? Thanks!

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  • Business Forces: SOA Adoption

    The only constant in today’s business environment is change. Businesses that continuously foresee change and adapt quickly will gain market share and increased growth. In our ever growing global business environment change is driven by data in regards to collecting, maintaining, verifying and distributing data.  Companies today are made and broken over data. Would anyone still use Google if they did not have one of the most accurate search indexes on the internet? No, because their value is in their data and the quality of their data. Due to the increasing focus on data, companies have been adopting new methodologies for gaining more control over their data while attempting to reduce the costs of maintaining it. In addition, companies are also trying to reduce the time it takes to analyze data in regards to various market forces to foresee changes prior to them actually occurring.   Benefits of Adopting SOA Services can be maintained separately from other services and applications so that a change in one service will only affect itself and client services or applications. The advent of services allows for system functionality to be distributed across a network or multiple networks. The costs associated with maintain business functionality is much higher in standard application development over SOA due to the fact that one Services can be maintained and shared to other applications instead of multiple instances of business functionality being duplicated via hard coding in to several applications. When multiple applications use a single service for a specific business function then the all of the data being processed will be consistent in terms of quality and accuracy through the applications. Disadvantages of Adopting SOA Increased initial costs and timelines are associated with SOA due to the fact that services need to be created as well as applications need to be modified to call the services In order for an SOA project to be successful the project must obtain company and management support in order to gain the proper exposure, funding, and attention. If SOA is new to a company they must also support the proper training in order for the project to be designed, and implemented correctly. References: Tews, R. (2007). Beyond IT: Exploring the Business Value of SOA. SOA Magazine Issue XI.

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  • JVM Language Summit in July

    - by Tori Wieldt
    A reminder that the 2012 JVM Language Summit is happening July 30–August 1, 2012 in Santa Clara, CA. The JVM Language Summit is an open technical collaboration among language designers, compiler writers, tool builders, runtime engineers, and VM architects, sharing their experiences as creators of programming languages for the JVM, and of the JVM itself. Non-JVM developers are welcome to attend or speak on their runtime, VM, or language of choice. About 70 language and VM implementers attended last year—and over one third presented. What’s at the JVM Language Summit? Three days of technical presentations and conversations about programming languages and the JVM. Prepared talks by numerous visiting language experts, OpenJDK engineers, and other Java luminaries. Many opportunities to visit and network with your peers. Da Vinci Machine Project memorabilia. Dinner at a local restaurant, such as last year’s Faultline Brewing Company. A chance to help shape the future of programming languages on the JVM. Space is limited: This summit is organized around a single classroom-style room, to support direct communication between participants. To cover costs, there is a nominal conference fee of $100. Learn more.

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  • Design help with parallel process

    - by brazc0re
    I am re-factoring some code and an having an issue with retrieving data from two parallel processes. I have an application that sends packets back and forth via different mediums (ex: RS232, TCP/IP, etc). The jist if of this question is that there are two parallel processes going on. I hope the picture below displays what is going on better than I can word it: SetupRS232() class creates a new instance of the SerialPort by: SerialPort serialPort = new SerialPort(); My question is, what is the best way that the Communicator() class, which sends out the packet via the respective medium, get access to the SerialPort object from the SetupRS232 class? I can do it with a Singleton but have heard that they are generally not the best design to go by. I am trying to follow SRP but I do feel like I am doing something wrong here. Communicator() will need to go out of it's way to get access to SetupRS232() to get access to the SerialPort class. I actually haven't found a way to even get access to it. Would designing each medium class, for example, SetupRS232(), SetupTCPIP, as a singleton be the best way to approach this problem?

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  • Today's Well Connected Companies

    - by Michael Snow
    Statoil Fuel & Retail and their partner, L&T Infotech, our recent winner of the Oracle Excellence Award for Fusion Middleware Innovation in the WebCenter category is featured this month in Profit Magazine's November Issues of both print and online versions. The online version has significantly more detail about their "Connect" project Statoil Fuel & Retail is a leading Scandinavian road transport fuel retailer that operates in 8 different countries and delivers aviation fuel at 85 airports. The company produces and sells 750 different lubricant products for B2B and B2C customers. Statoil won the 2013 Oracle Excellence Award for Oracle Fusion Middleware Innovation: Oracle WebCenter based on a stellar Oracle implementation, created with implementation partner L&T Infotech, which used Oracle’s JD Edwards and Oracle Fusion Middleware to replace and consolidate 10 SAP portals into a single, integrated, personalized enterprise portal for partners, station managers, and support staff. Utilizing Oracle WebCenter Portal, Oracle WebCenter Content, Oracle Identity Management, Oracle SOA Suite, JD Edwards applications, and Oracle CRM On Demand, Statoil is now able to offer a completely redesigned portal for an easy and user-friendly web experience, delivering a fast, secure, robust, and scalable solution that will help the company remain competitive in its industry. The solution has increased Statoil Fuel & Retail’s web footprint and expanded its online business. Read the complete article for the full story of Statoil Fuel & Retail's implementation of Oracle Fusion Middleware technology.

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  • How do I change the canvas size of a PNG with ImageMagick (GraphicsMagick)? (How to pad with transparency?)

    - by Pistos
    Alternatively: How do I take a non-square PNG and "fill out" the "rest" of the image with transparency so that the resulting square image has the original image centered in the square? ULTIMATELY, what I want is to take any image of any GM-supported format of any size, and create a scaled-down PNG (say, 40 pixels maximum for either dimension), with aspect ratio maintained, transparency-padded for non-square original images, AND with an already-prepared 40x40 PNG transparency mask applied. I already know how to scale down and keep aspect ratio; I already have the command for applying my composite. My only missing piece is square-alizing non-square images (padding with transparency). Single command preferred; multi-command chain acceptable. (edit) Extra info: Here's the composite command I'm using: gm composite -compose copyopacity mask.png source-and-target.png source-and-target.png where mask.png has white pixels for what I want to keep of source-and-target.png and transparent pixels for what I want to remove (and become transparent) of source-and-target.png.

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  • Layers - Logical seperation vs physical

    - by P.Brian.Mackey
    Some programmers recommend logical seperation of layers over physical. For example, given a DL, this means we create a DL namespace not a DL assembly. Benefits include: faster compilation time simpler deployment Faster startup time for your program Less assemblies to reference Im on a small team of 5 devs. We have over 50 assemblies to maintain. IMO this ratio is far from ideal. I prefer an extreme programming approach. Where if 100 assemblies are easier to maintain than 10,000...then 1 assembly must be easier than 100. Given technical limits, we should strive for < 5 assemblies. New assemblies are created out of technical need not layer requirements. Developers are worried for a few reasons. A. People like to work in their own environment so they dont step on eachothers toes. B. Microsoft tends to create new assemblies. E.G. Asp.net has its own DLL, so does winforms. Etc. C. Devs view this drive for a common assembly as a threat. Some team members Have a tendency to change the common layer without regard for how it will impact dependencies. My personal view: I view A. as silos, aka cowboy programming and suggest we implement branching to create isolation. C. First, that is a human problem and we shouldnt create technical work arounds for human behavior. Second, my goal is not to put everything in common. Rather, I want partitions to be made in namespaces not assemblies. Having a shared assembly doesnt make everything common. I want the community to chime in and tell me if Ive gone off my rocker. Is a drive for a single assembly or my viewpoint illogical or otherwise a bad idea?

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  • Filling cells with sequential numbers in an Excel (2003) macro

    - by Fred Hamilton
    I need to fill an excel column with a sequential series, in this case from -500 to 1000. I've got a macro to do it, but it takes a lot of lines for something that seems like it should be a single function [something like FillRange(A2:A1502, -500, 1000, 1)]. But if that function exists, I can't find it. Is the following as simple and elegant as it gets? 'Draw X axis scale Cells(1, 1).Value = "mV" Cells(2, 1).Value = -500 Cells(3, 1).Value = -499 Cells(4, 1).Value = -498 Dim selection1 As Range, selection2 As Range Set selection1 = Sheet1.Range("A2:A4") Set selection2 = Sheet1.Range("A2:A1502") selection1.AutoFill Destination:=selection2

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  • How do I add a counter for process data in perfmon.exe for a process that isn't currently running?

    - by Jason Jones
    I would like to perform an ad hoc capture of data using perfmon.exe for a process that runs during the night. I know the name of the executable--lets call it Foo.exe. If the process were currently running, I would go to the Add Counters dialog in perfmon, switch to the Process object, and select the Foo instance from the list. However, it's not currently running. Is it possible to set up perfmon so that it will capture process data for this process when it starts, and if so, how would I configure it to do so?

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  • Both screens always stay on after adding second monitor

    - by J.Merrill
    I had a single 1920x1080 monitor on a Windows 7 desktop PC and, per "power management" (not screen saver), the screen would go blank after 10 minutes. I added another monitor (2560x1600 if that matters) and since then, neither screen has ever blanked. I've tried turning on the "blank" screen saver, but that didn't help either -- I can go away for hours and when I come back, both screens are on. I've seen others with similar issues apparently caused by e.g. wireless mice that seem to move infinitesimally, but I've got the same wired mouse I had before. I can't understand why neither the screen saver nor power management is doing what it should to blank the screens, when "power management" used to do it when there was only one monitor. Maybe it doesn't matter so much with current LCD display technology (no "burn in") but doesn't a monitor use more power when "power management" hasn't turned off the display? Thanks for any suggestions.

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  • Client-server application design issue

    - by user2547823
    I have a collection of clients on server's side. And there are some objects that need to work with that collection - adding and removing clients, sending message to them, updating connection settings and so on. They should perform these actions simultaneously, so mutex or another synchronization primitive is required. I want to share one instance of collection between these objects, but all of them require access to private fields of collection. I hope that code sample makes it more clear[C++]: class Collection { std::vector< Client* > clients; Mutex mLock; ... } class ClientNotifier { void sendMessage() { mLock.lock(); // loop over clients and send message to each of them } } class ConnectionSettingsUpdater { void changeSettings( const std::string& name ) { mLock.lock(); // if client with this name is inside collection, change its settings } } As you can see, all these classes require direct access to Collection's private fields. Can you give me an advice about how to implement such behaviour correctly, i.e. keeping Collection's interface simple without it knowing about its users?

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  • Query for server DefaultData & DefaultLog folders

    - by jamiet
    Do you ever need to query for the DefaultData & DefaultLog folders for your SQL Server instance? Well, I just did and the following script enabled me to do that: DECLARE @HkeyLocal NVARCHAR(18),@MSSqlServerRegPath NVARCHAR(31),@InstanceRegPath SYSNAME; SELECT @HkeyLocal=N'HKEY_LOCAL_MACHINE' SELECT @MSSqlServerRegPath=N'SOFTWARE\Microsoft\MSSQLServer' SELECT @InstanceRegPath=@MSSqlServerRegPath + N'\MSSQLServer' DECLARE @SmoDefaultFile NVARCHAR(512) EXEC MASTER.dbo.xp_instance_regread @HkeyLocal, @InstanceRegPath, N'DefaultData', @SmoDefaultFile OUTPUT DECLARE @SmoDefaultLog NVARCHAR(512) EXEC MASTER.dbo.xp_instance_regread @HkeyLocal, @InstanceRegPath, N'DefaultLog', @SmoDefaultLog OUTPUT SELECT ISNULL(@SmoDefaultFile,N'') AS [DefaultFile],ISNULL(@SmoDefaultLog,N'') AS [DefaultLog]' I haven’t done any rigorous testing or anything like that, all I can say is…it worked for me (on SQL Server 2012). Use as you see fit. Doubtless this information exists in a multitude of other places but nevertheless I’m putting it here so I know where to find it in the future. Just for fun I thought I’d try this out against SQL Azure Windows Azure SQL Database. Unsurprisingly it didn’t work there: Msg 40515, Level 15, State 1, Line 16 Reference to database and/or server name in 'MASTER.dbo.xp_instance_regread' is not supported in this version of SQL Server. @Jamiet

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  • Graphic Setup tune-up checklist

    - by Click Ok
    I was trying to play the game Warzone 2100 and the games runs fine, with nice speed, but the screen stays with a horizontal lines "flickering"... My PC have a integrated GeForce Go 6100 vga. Ok, not a powerfull vga, but it's not the end of the world to run a "simple" game like this (compared with another games that ask you send your eyes to purchase a expensive vga). So, I think that the problem can be of the configuration of my machine. I use it in first instance for programming jobs, so I underpay attention to video setup. I would like about a checklist to know if my PC is "ready" to games. By example, I know that I need: Lastest vga drivers Updated DirectX and OpenGL What you suggest? There is too some good programs to test performance and suggests improvements in the system? Thank you! PS: I'm using Windows 7

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  • Why are my downloads up to ~1500KByte/sec only, when the ADSL connection locks at 13611Kbit/s?

    - by leladax
    No uploading is going on other than the overhead of downloading which appears to be not high for the abilities of the connection: Only about 30-40KByte/s when the router locks at 1012Kb/s and other direct uploads or uploading overheads can reach more than 100KByte/sec so I don't think it's a congestion at uploading that is doing it. Is there something I miss? Because I assume 13611Kbit/s should be ~1701Kbyte/sec. Is it an overheard at the ADSL level I don't understand? Could it be the ISP doing it? If it's active throttling it can't be on single connections since 2 high speed connections still go up to ~1500KByte/sec. It's not an example on torrents or other complex situations. The tests were on Ethernet, but I doubt the results would be different on wireless. I wonder if the settings of those connections at my end could be doing it, e.g. MTU settings, though I haven't touched the defaults of a common Realtek NIC.

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  • Robust way to keep records of software releases?

    - by japreiss
    We release a number of small plug-ins that go along with our software. Each plug-in allows our software to talk to a single manufactuer's hardware. I would like to devise a system for keeping track of plug-in releases. Example info that should be stored: Hardware manufacturer name 32-bit? 64-bit? both? What modes of operation does the hardware support? What versions of the manufacturer's driver have been tested with the plugin? Desirable properties of the system: Able to synchronize with version control software Stores data in human-readable text file (also good for differ tool) Free visual, spreadsheet-like editor available Able to do simple analysis like "What is the oldest plug-in?" I've got to imagine that someone else has tackled this problem already. Right now my best guess is XML/JSON with a visual editor, but I have been disappointed in the editors I've tried so far. I'd like to get input from some more experienced developers. Thanks!

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  • WordPress mod_rewrite redirect specific folders

    - by Ps Cjef
    As a new user, I'm not allowed to post more than two hyperlinks here. So I have added a space after every http (ignore them and read as full URLs). System: Debian Etch, Apache 2.2 I have a WordPress instance with multiple blogs. I would like to redirect some of the folders based on the year and month, while leaving other folders go to the actual locations. Example: I have archives for a few years, like 2010, 2011 and 2012: http ://mydomain.com/wordpress/myblog/2010/02 http ://mydomain.com/wordpress/myblog/2011/01 http ://mydomain.com/wordpress/myblog/2012/01 I would like to redirect all 2010 and 2011 posts to another blog with the same folder structure: http ://mydomain.com/wordpress/myotherblog/2010/02 http ://mydomain.com/wordpress/myotherblog/2011/01 and so on. I would like to have 2012 and beyond to go to the actual site (http ://mydomain.com/wordpress/myblog/2012/01). I tried mod_rewrite with the following, one rule at a time to test redirection for just one year (and to expand later for other years), and none of them worked! * RewriteEngine is already on since there are some default WordPress rewrites. * RewriteBase is set to http://mydomain.com/wordpress/ . * I put my rule before all the other default WordPress rules are processed. Didn't work solution #1 RedirectMatch 301 /myblog/2010/(.*) /myotherblog/2010/$1 Didn't work solution #2 RewriteRule /myblog/2010/(.*) http ://mydomain.com/myotherblog/2010/$1 [R=301] Didn't work solution #3 RedirectPermanent /myblog/2010/(.*) http ://mydomain.com/myotherblog/2010/$1 I've also tried the above rules with and without a fully qualified URL for the new location. The rewrite log, with log level set to 9, did not provide any useful information. It shows that it looks at the pattern specified against the URL (as mentioned in the rule), but finally what happens is a passthrough to http ://mydomain.com/myblog/ for all URLs or a 500 Internal Server Error. Any ideas on where I could be going wrong or any alternative solutions?

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  • SBS 2008 reinstall on new machine

    - by Jon
    We purchased a single license on Windows Small Business Server 2008 for a medical office, and soon after a power fault caused the server to overload, destroying the power supply and motherboard. I reinstalled on a new server, and have the domain up and running again, but under system properties it tells me I still need to activate windows, and that the product key currently entered is invalid for activation. I've been trying to figure out how to get in touch with Microsoft to explain the situation and get a new activation key issued without having to pay for another license which we can't afford, but the online documentation hasn't been particularly clear on the subject. Does anyone know how to do that, or if I do need the activation key to continue using SBS 2008? (It currently tells me I have 56 days left to activate) Any tips would be appreciated. I'm not strictly a computer guy and I'm feeling a little lost.

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  • How do I know if my Xeon Processor supports hardware virtualisation?

    - by gshankar
    I've been scouring the net (mainly the wikipaedia lists and intel's site. I even pulled out the datasheet for my processor) but I can't seem to answer this question. Does my Xeon support hardware virtualisation? The processor in question is a: "Nocona" (standard-voltage, 90 nm) 2800MHz. Other details can be found here: http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#.22Nocona.22_.28standard-voltage.2C_90_nm.29 I'm pretty sure the answer is no as it's a pretty old server but I can't find a single place which has a definitive yes/no answer so I'm still looking...

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