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  • How can I find out why a website looks different when I upload it to IIS ?

    - by UXdesigner
    Good day... I've been working on a website project, that requires to be on a Microsoft IIS Web Server. It is HTML, pure HTML, with really nice CSS, web-standards, etc. I open this website using in my computer, using Firefox, IE 8.0, Safari, Google Chrome and it looks fine everywhere. But as I upload it to the Microsoft IIS server, it changes a few things. for example: the main menu, which is a navigation bar that has dropdowns, seems to change it's line-height for some reason, and it is bigger. Some <h3> or <h2> Alignment seems wrong as well... And the lines that are supposed to surround the photographs in the website (like a frame - dotted line) won't appear. But all the rest of the CSS is loading perfectly fine. I don't think it's a path problem as everything is loading fine. But this is making me look bad and it is very important to have this done as soon as possible. Can someone give me good suggestions on what to look at ? The IIS permissions seem fine. I'm not a big Microsoft fan...but I have to develop the website there. Also, I uploaded the site to my apache server and it worked wonders. I wish I could change the policies in this corporation, but I can't. Thank you so much for your kind help.

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  • Rails preventing duplicates in polymorphic has_many :through associations

    - by seaneshbaugh
    Is there an easy or at least elegant way to prevent duplicate entries in polymorphic has_many through associations? I've got two models, stories and links that can be tagged. I'm making a conscious decision to not use a plugin here. I want to actually understand everything that's going on and not be dependent on someone else's code that I don't fully grasp. To see what my question is getting at, if I run the following in the console (assuming the story and tag objects exist in the database already) s = Story.find_by_id(1) t = Tag.find_by_id(1) s.tags << t s.tags << t My taggings join table will have two entries added to it, each with the same exact data (tag_id = 1, taggable_id = 1, taggable_type = "Story"). That just doesn't seem very proper to me. So in an attempt to prevent this from happening I added the following to my Tagging model: before_validation :validate_uniqueness def validate_uniqueness taggings = Tagging.find(:all, :conditions => { :tag_id => self.tag_id, :taggable_id => self.taggable_id, :taggable_type => self.taggable_type }) if !taggings.empty? return false end return true end And it works almost as intended, but if I attempt to add a duplicate tag to a story or link I get an ActiveRecord::RecordInvalid: Validation failed exception. It seems that when you add an association to a list it calls the save! (rather than save sans !) method which raises exceptions if something goes wrong rather than just returning false. That isn't quite what I want to happen. I suppose I can surround any attempts to add new tags with a try/catch but that goes against the idea that you shouldn't expect your exceptions and this is something I fully expect to happen. Is there a better way of doing this that won't raise exceptions when all I want to do is just silently not save the object to the database because a duplicate exists?

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  • Mobile safari - suppress Unsupported Protocol alert

    - by Juriy
    Hello guys, I'm creating a website for iPhone and i use the native app (cliqcliq Quickpick) to upload photos. I use the script like the following to check if the application is installed. The basic idea is to send user to a custom url, if application is there it is launched, if it is not there the url should be ignored and user is taken to App Store. Below is the script: window.launchQuickpic = function() { var start = new Date(); setTimeout(function() { if (new Date() - start > 2000) { return; } window.location = 'http://www.cliqcliq.com/quickpic/install/'; }, 1000); var getParams = [...]; window.location = 'vquickpic://?' + getParams.join('&'); }; If the native app is not installed I'm getting the alert box saying that Safari does not recognize the custom url. After user clicks "ok" it works as it is supposed to. But the alert is reeealy annoying. I've tried to surround the window.location= code with try/catch. Didn't help.

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  • pthread condition variables on Linux, odd behaviour.

    - by janesconference
    Hi. I'm synchronizing reader and writer processes on Linux. I have 0 or more process (the readers) that need to sleep until they are woken up, read a resource, go back to sleep and so on. Please note I don't know how many reader processes are up at any moment. I have one process (the writer) that writes on a resource, wakes up the readers and does its business until another resource is ready (in detail, I developed a no starve reader-writers solution, but that's not important). To implement the sleep / wake up mechanism I use a Posix condition value, pthread_cond_t. The clients call a pthread_cond_wait() on the variable to sleep, while the server does a pthread_cond_broadcast() to wake them all up. As the manual says, I surround these two calls with a lock/unlock of the associated pthread mutex. The condition variable and the mutex are initialized in the server and shared between processes through a shared memory area (because I'm not working with threads, but with separate processes) an I'm sure my kernel / syscall support it (because I checked _POSIX_THREAD_PROCESS_SHARED). What happens is that the first client process sleeps and wakes up perfectly. When I start the second process, it blocks on its pthread_cond_wait() and never wakes up, even if I'm sure (by the logs) that pthread_cond_broadcast() is called. If I kill the first process, and launch another one, it works perfectly. In other words, the condition variable pthread_cond_broadcast() seems to wake up only one process a time. If more than one process wait on the very same shared condition variable, only the first one manages to wake up correctly, while the others just seem to ignore the broadcast. Why this behaviour? If I send a pthread_cond_broadcast(), every waiting process should wake up, not just one (and, however, not always the same one).

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  • Regex for removing certain variable numeric values from some text

    - by stephemurdoch
    I want to substitute all 4 instances of the number 300 from the code below, with 470. <div> <object width="300" height="300"> <embed src="link-removed" width="300" height="300"></embed> </object> <p> <a href="another-link">link</a> </p> </div> The width and height of the code being pasted might not always be 300 by 300. So I figure I probably need a regular expression that subs any numeric value that follows the strings "width=" and "height=", whilst remembering to account for the quotations marks that surround the number. Can anyone tell me if that's the best way, and if so, what would be the best regex? In case it matters, the code being pasted is stored as "text" in the db rather than as a string, as it's quite lengthy (i've removed a few hundred chars from what you see pasted here)...

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  • Why does one of these statements compile in Scala but not the other?

    - by Jeff
    (Note: I'm using Scala 2.7.7 here, not 2.8). I'm doing something pretty simple -- creating a map based on the values in a simple, 2-column CSV file -- and I've completed it easily enough, but I'm perplexed at why my first attempt didn't compile. Here's the code: // Returns Iterator[String] private def getLines = Source.fromFile(csvFilePath).getLines // This doesn't compile: def mapping: Map[String,String] = { Map(getLines map { line: String => val pairArr = line.split(",") pairArr(0) -> pairArr(1).trim() }.toList:_*) } // This DOES compile def mapping: Map[String,String] = { def strPair(line: String): (String,String) = { val pairArr = line.split(",") pairArr(0) -> pairArr(1).trim() } Map(getLines.map( strPair(_) ).toList:_*) } The compiler error is CsvReader.scala:16: error: value toList is not a member of (St ring) = (java.lang.String, java.lang.String) [scalac] possible cause: maybe a semicolon is missing before `value toList'? [scalac] }.toList:_*) [scalac] ^ [scalac] one error found So what gives? They seem like they should be equivalent to me, apart from the explicit function definition (vs. anonymous in the nonworking example) and () vs. {}. If I replace the curly braces with parentheses in the nonworking example, the error is "';' expected, but 'val' found." But if I remove the local variable definition and split the string twice AND use parens instead of curly braces, it compiles. Can someone explain this difference to me, preferably with a link to Scala docs explaining the difference between parens and curly braces when used to surround method arguments?

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  • Does QThread::sleep() require the event loop to be running?

    - by suszterpatt
    I have a simple client-server program written in Qt, where processes communicate using MPI. The basic design I'm trying to implement is the following: The first process (the "server") launches a GUI (derived from QMainWindow), which listens for messages from the clients (using repeat fire QTimers and asynchronous MPI receive calls), updates the GUI depending on what messages it receives, and sends a reply to every message. Every other process (the "clients") runs in an infinite loop, and all they are intended to do is send a message to the server process, receive the reply, go to sleep for a while, then wake up and repeat. Every process instantiates a single object derived from QThread, and calls its start() method. The run() method of these classes all look like this: from foo.cpp: void Foo::run() { while (true) { // Send message to the first process // Wait for a reply // Do uninteresting stuff with the reply sleep(3); // also tried QThread::sleep(3) } } In the client's code, there is no call to exec() anywhere, so no event loop should start. The problem is that the clients never wake up from sleeping (if I surround the sleep() call with two writes to a log file, only the first one is executed, control never reaches the second). Is this because I didn't start the event loop? And if so, what is the simplest way to achieve the desired functionality?

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  • Newbie question: When to use extern "C" { //code } ?

    - by Russel
    Hello, Maybe I'm not understanding the differences between C and C++, but when and why do we need to use: extern "C" { ? Apparently its a "linkage convention"? I read about it briefly and noticed that all the .h header files included with MSVS surround their code with it. What type of code exactly is "C code" and NOT "C++ code"? I thought C++ included all C code? I'm guessing that this is not the case and that C++ is different and that standard features/functions exist in one or the other but not both (ie: printf is C and cout is C++), but that C++ is backwards compatible though the extern "C" declaration. Is this correct? My next question depends on the answer to the first, but I'll ask it here anyway: Since MSVS header files that are written in C are surrounded by extern "C" { ... }, when would you ever need to use this yourself in your own code? If your code is C code and you are trying to compile it in a C++ compiler, shouldn't it work without problem because all the standard h files you include will already have the extern "C" thing in them with the C++ compiler? Do you have to use this when compiling in C++ but linking to alteady built C libraries or something? Please help clarify this for me... Thanks! --Keith

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  • Is there a term for this concept, and does it exist in a static-typed language?

    - by Strilanc
    Recently I started noticing a repetition in some of my code. Of course, once you notice a repetition, it becomes grating. Which is why I'm asking this question. The idea is this: sometimes you write different versions of the same class: a raw version, a locked version, a read-only facade version, etc. These are common things to do to a class, but the translations are highly mechanical. Surround all the methods with lock acquires/releases, etc. In a dynamic language, you could write a function which did this to an instance of a class (eg. iterate over all the functions, replacing them with a version which acquires/releases a lock.). I think a good term for what I mean is 'reflected class'. You create a transformation which takes a class, and returns a modified-in-a-desired-way class. Synchronization is the easiest case, but there are others: make a class immutable [wrap methods so they clone, mutate the clone, and include it in the result], make a class readonly [assuming you can identify mutating methods], make a class appear to work with type A instead of type B, etc. The important part is that, in theory, these transformations make sense at compile-time. Even though an ActorModel<T> has methods which change depending on T, they depend on T in a specific way knowable at compile-time (ActorModel<T> methods would return a future of the original result type). I'm just wondering if this has been implemented in a language, and what it's called.

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  • What are salesforce.com and Apex like as an application development platform?

    - by mhollers
    I have recently discovered that salesforce.com is much more than an online CRM after coming across a Morrison's Case Study in which they develop a works management application. I've been trying it out with a view to recreating our own Works Management system on the platform. My background is in Microsoft and .Net, and the obvious 1st choice would be asp.net. However, there's only really myself with .net experience and my manager with a more legacy Synergy programming background, and I am self taught and am looking at evaluating other RAD options (eg Ironspeed). the nature of the business is in the main 2-5 concurrent construction type contracts that run for 3-5 yrs each, each requiring 15-50 system users. Traditionally we have used our character based Works Mangement system for everything and tweaked it for each contract. The Salesforce licensing model on the face of it suits this sort of flexibilty, but I'm worried about the development flexibilty/learning curve and all the issues that surround lock-in. There doesn't seem to be much neutral sober analysis of the platform on the web that isn't salesforce's own material/blogs Has anyone any experience of developing an application on salesforce as compared to the more 'traditional' .Net route?

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  • Help me make a jquery AJAXed divs' links work like an iframe.

    - by Dave
    I want to make a few divs on the same page work similar to iframes. Each will load a URL which contains links. When you click on those links I want an AJAX request to go out and replace the div's html with new html from the page of the clicked link. It will be very similar to surfing a page inside an iframe. Here is my code to initially load the divs (this code works): onload: $.ajax({ url: "http://www.foo.com/videos.php", cache: false, success: function(html){ $("#HowToVideos").replaceWith(html); } }); $.ajax({ url: "http://www.foo.com/projects.php", cache: false, success: function(html){ $("#HowToProjects").replaceWith(html); } }); This is a sample of code that I'm not quite sure how to implement but explains the concept. Could I get some help with some selectors(surround in ?'s) and or let me know what is the correct way of doing this? I also want to display a loading icon, which I need to know where the right place to place the function is. $(".ajaxarea a").click(function(){ var linksURL = this.href; // var ParentingAjaxArea = $(this).closest(".ajaxarea");; $.ajax({ url: linksURL, cache: false, success: function(html){ $(ParentingAjaxArea).replaceWith(html); } }); return false; }); $(".ajaxarea").ajaxStart(function(){ // show loading icon });

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  • Choosing approach for an IM client-server app

    - by John
    Update: totally re-wrote this to be more succint. I'm looking at a new application, one part of which will be very similar to standard IM clients, i.e text chat, ability to send attachments, maybe some real-time interaction like a multi-user whiteboard. It will be client-server, i.e all traffic goes through my central server. That means if I want to support cross-communication with other IM systems, I am still free to pick any protocol for my own client<--server communication - my server can use XMPP or whatever to talk to other systems. Clients are expected to include desktop apps, but probably also browser-based as well either through Flex/Silverlight or HTML/AJAX. I see 3 options for my own client-server communication layer: XMPP. The benefits are clients already exist as do open-source servers. However it requires the most up-front research/learning and also appears like it might raise legal issues due to GPL. Custom sockets. A server app makes connections with the clients, allowing any text/binary data to be sent very fast. However this approach requires building said server from scratch, and also makes a JS client tricky Servlets (or similar web server). Using tried and tested Java web-stack, clients send HTTP requests similar to AJAX-based websites. The benefit is the server is easy to write using well-established technologies, and easy to talk to. But what restrictions would this bring? Is it appropriate technology for real-time communication? Advice and suggests are welcome, especially what pros and cons surround using a web-server approach as compared to a socket-based approach.

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  • Accessing "pseudo-globals" by their name as a string

    - by rob
    I am now in the process of removing most globals from my code by enclosing everything in a function, turning the globals into "pseudo globals," that are all accessible from anywhere inside that function block. (function(){ var g = 1; var func f1 = function () { alert (g); } var func f2= function () { f1(); } })(); (technically this is only for my "release version", where I append all my files together into a single file and surround them with the above....my dev version still has typically one global per js file) This all works great except for one thing...there is one important place where I need to access some of these "globals" by string name. Previously, I could have done this: var name = "g"; alert (window[name]); and it did the same as alert(g); Now -- from inside the block -- I would like to do the same, on my pseudo-globals. But I can't, since they are no longer members of any parent object ("window"), even though are in scope. Any way to access them by string? Thanks...

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  • Pulseaudio is no longer working in Debian Squeeze: 'Failed to open module "module-combine-sink": file not found'

    - by mattalexx
    I'm having a problem with pulseaudio. My machine crashed, and when I rebooted and ran pavucontrol, I got a "Connection Failed: Connection refused" dialog. When I run pulseaudio --log-level=info --log-target=stderr from the command line, I get the following output: [...] I: alsa-util.c: Error opening PCM device front:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device hw:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument I: alsa-util.c: Failed to set hardware parameters on plug:iec958:1: Invalid argument I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:1 I: alsa-util.c: Error opening PCM device a52:1: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:1 I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:1 I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:1 I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:1 I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=1,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:1 I: alsa-util.c: Error opening PCM device hdmi:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device hw:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device front:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device hw:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC1D0c' failed (-2) I: alsa-util.c: Error opening PCM device iec958:1: No such file or directory I: card.c: Created 0 "alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio" I: alsa-sink.c: Successfully opened device front:1. I: alsa-sink.c: Selected mapping 'Analog Stereo' (analog-stereo). I: alsa-sink.c: Successfully enabled mmap() mode. I: alsa-sink.c: Successfully enabled timer-based scheduling mode. I: (alsa-lib)control.c: Invalid CTL front:1 I: alsa-mixer.c: Unable to attach to mixer front:1: No such file or directory I: alsa-mixer.c: Successfully attached to mixer 'hw:1' W: alsa-mixer.c: Your kernel driver is broken: it reports a volume range from 0.00 dB to 0.00 dB which makes no sense. I: module-device-restore.c: Restoring volume for sink alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo. I: sink.c: Created sink 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right I: sink.c: alsa.resolution_bits = "16" I: sink.c: device.api = "alsa" I: sink.c: device.class = "sound" I: sink.c: alsa.class = "generic" I: sink.c: alsa.subclass = "generic-mix" I: sink.c: alsa.name = "USB Audio" I: sink.c: alsa.id = "USB Audio" I: sink.c: alsa.subdevice = "0" I: sink.c: alsa.subdevice_name = "subdevice #0" I: sink.c: alsa.device = "0" I: sink.c: alsa.card = "1" I: sink.c: alsa.card_name = "DigiHug USB Audio" I: sink.c: alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:00:1a.0-1.2, full speed" I: sink.c: alsa.driver_name = "snd_usb_audio" I: sink.c: device.bus_path = "pci-0000:00:1a.0-usb-0:1.2:1.1" I: sink.c: sysfs.path = "/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1" I: sink.c: udev.id = "usb-FiiO_DigiHug_USB_Audio-01-Audio" I: sink.c: device.bus = "usb" I: sink.c: device.vendor.id = "1852" I: sink.c: device.vendor.name = "GYROCOM C&C Co., LTD" I: sink.c: device.product.id = "7022" I: sink.c: device.product.name = "DigiHug_USB_Audio" I: sink.c: device.serial = "FiiO_DigiHug_USB_Audio" I: sink.c: device.string = "front:1" I: sink.c: device.buffering.buffer_size = "352800" I: sink.c: device.buffering.fragment_size = "176400" I: sink.c: device.access_mode = "mmap+timer" I: sink.c: device.profile.name = "analog-stereo" I: sink.c: device.profile.description = "Analog Stereo" I: sink.c: device.description = "DigiHug_USB_Audio Analog Stereo" I: sink.c: alsa.mixer_name = "USB Mixer" I: sink.c: alsa.components = "USB1852:7022" I: sink.c: module-udev-detect.discovered = "1" I: sink.c: device.icon_name = "audio-card-usb" I: source.c: Created source 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo.monitor" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right I: source.c: device.description = "Monitor of DigiHug_USB_Audio Analog Stereo" I: source.c: device.class = "monitor" I: source.c: alsa.card = "1" I: source.c: alsa.card_name = "DigiHug USB Audio" I: source.c: alsa.long_card_name = "FiiO DigiHug USB Audio at usb-0000:00:1a.0-1.2, full speed" I: source.c: alsa.driver_name = "snd_usb_audio" I: source.c: device.bus_path = "pci-0000:00:1a.0-usb-0:1.2:1.1" I: source.c: sysfs.path = "/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1" I: source.c: udev.id = "usb-FiiO_DigiHug_USB_Audio-01-Audio" I: source.c: device.bus = "usb" I: source.c: device.vendor.id = "1852" I: source.c: device.vendor.name = "GYROCOM C&C Co., LTD" I: source.c: device.product.id = "7022" I: source.c: device.product.name = "DigiHug_USB_Audio" I: source.c: device.serial = "FiiO_DigiHug_USB_Audio" I: source.c: device.string = "1" I: source.c: module-udev-detect.discovered = "1" I: source.c: device.icon_name = "audio-card-usb" I: alsa-sink.c: Using 2.0 fragments of size 176400 bytes (1000.00ms), buffer size is 352800 bytes (2000.00ms) I: alsa-sink.c: Time scheduling watermark is 20.00ms I: alsa-sink.c: Hardware volume ranges from 0 to 110. I: alsa-sink.c: Using hardware volume control. Hardware dB scale not supported. I: alsa-sink.c: Using hardware mute control. I: core-util.c: Successfully enabled SCHED_RR scheduling for thread, with priority 5. I: alsa-sink.c: Starting playback. I: module.c: Loaded "module-alsa-card" (index: #4; argument: "device_id="1" name="usb-FiiO_DigiHug_USB_Audio-01-Audio" card_name="alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1""). I: module-udev-detect.c: Card /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/sound/card1 (alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio) module loaded. I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device front:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device front:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device front:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device front:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device front:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device hw:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround40:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround41:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround50:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround51:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device surround71:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm_hw.c: open '/dev/snd/pcmC2D0p' failed (-2) I: alsa-util.c: Error opening PCM device iec958:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM a52:2 I: alsa-util.c: Error opening PCM device a52:2: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:2 I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:2 I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:2 I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:2 I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory I: (alsa-lib)confmisc.c: Unable to find definition 'cards.USB-Audio.pcm.hdmi.0:CARD=2,AES0=4,AES1=130,AES2=0,AES3=2' I: (alsa-lib)conf.c: function snd_func_refer returned error: No such file or directory I: (alsa-lib)conf.c: Evaluate error: No such file or directory I: (alsa-lib)pcm.c: Unknown PCM hdmi:2 I: alsa-util.c: Error opening PCM device hdmi:2: No such file or directory I: alsa-util.c: Device hw:2 doesn't support 44100 Hz, changed to 8000 Hz. I: alsa-util.c: Failed to set hardware parameters on plug:front:2: Invalid argument I: alsa-util.c: Failed to set hardware parameters on plug:hw:2: Invalid argument I: alsa-util.c: Failed to set hardware parameters on plug:iec958:2: Invalid argument I: alsa-util.c: Failed to set hardware parameters on plug:iec958:2: Invalid argument I: module-card-restore.c: Restoring profile for card alsa_card.usb-046d_08d7-01-U0x46d0x8d7. I: card.c: Created 1 "alsa_card.usb-046d_08d7-01-U0x46d0x8d7" I: module.c: Loaded "module-alsa-card" (index: #5; argument: "device_id="2" name="usb-046d_08d7-01-U0x46d0x8d7" card_name="alsa_card.usb-046d_08d7-01-U0x46d0x8d7" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1""). I: module-udev-detect.c: Card /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.1/sound/card2 (alsa_card.usb-046d_08d7-01-U0x46d0x8d7) module loaded. I: module-udev-detect.c: Found 3 cards. I: module.c: Loaded "module-udev-detect" (index: #6; argument: ""). I: module.c: Loaded "module-esound-protocol-unix" (index: #7; argument: ""). I: module.c: Loaded "module-native-protocol-unix" (index: #8; argument: ""). I: module-default-device-restore.c: Saved default sink 'alsa_output.pci-0000_00_1b.0.analog-surround-41' not existant, not restoring default sink setting. I: module-default-device-restore.c: Saved default source 'alsa_output.pci-0000_00_1b.0.analog-surround-41.monitor' not existant, not restoring default source setting. I: module.c: Loaded "module-default-device-restore" (index: #9; argument: ""). I: module.c: Loaded "module-rescue-streams" (index: #10; argument: ""). I: module.c: Loaded "module-always-sink" (index: #11; argument: ""). I: module.c: Loaded "module-intended-roles" (index: #12; argument: ""). I: module.c: Loaded "module-suspend-on-idle" (index: #13; argument: ""). I: client.c: Created 0 "ConsoleKit Session /org/freedesktop/ConsoleKit/Session2" I: module.c: Loaded "module-console-kit" (index: #14; argument: ""). I: module.c: Loaded "module-position-event-sounds" (index: #15; argument: ""). I: module.c: Loaded "module-cork-music-on-phone" (index: #16; argument: ""). E: module.c: Failed to open module "module-combine-sink": file not found E: main.c: Module load failed. E: main.c: Failed to initialize daemon. I: module.c: Unloading "module-device-restore" (index: #0). I: module.c: Unloaded "module-device-restore" (index: #0). I: module.c: Unloading "module-stream-restore" (index: #1). I: module.c: Unloaded "module-stream-restore" (index: #1). I: module.c: Unloading "module-card-restore" (index: #2). I: module.c: Unloaded "module-card-restore" (index: #2). I: module.c: Unloading "module-augment-properties" (index: #3). I: module.c: Unloaded "module-augment-properties" (index: #3). I: module.c: Unloading "module-alsa-card" (index: #4). I: sink.c: Freeing sink 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo" I: source.c: Freeing source 0 "alsa_output.usb-FiiO_DigiHug_USB_Audio-01-Audio.analog-stereo.monitor" I: card.c: Freed 0 "alsa_card.usb-FiiO_DigiHug_USB_Audio-01-Audio" I: module.c: Unloaded "module-alsa-card" (index: #4). I: module.c: Unloading "module-alsa-card" (index: #5). I: card.c: Freed 1 "alsa_card.usb-046d_08d7-01-U0x46d0x8d7" I: module.c: Unloaded "module-alsa-card" (index: #5). I: module.c: Unloading "module-udev-detect" (index: #6). I: module.c: Unloaded "module-udev-detect" (index: #6). I: module.c: Unloading "module-esound-protocol-unix" (index: #7). I: module.c: Unloaded "module-esound-protocol-unix" (index: #7). I: module.c: Unloading "module-native-protocol-unix" (index: #8). I: module.c: Unloaded "module-native-protocol-unix" (index: #8). I: module.c: Unloading "module-default-device-restore" (index: #9). I: module.c: Unloaded "module-default-device-restore" (index: #9). I: module.c: Unloading "module-rescue-streams" (index: #10). I: module.c: Unloaded "module-rescue-streams" (index: #10). I: module.c: Unloading "module-always-sink" (index: #11). I: module.c: Unloaded "module-always-sink" (index: #11). I: module.c: Unloading "module-intended-roles" (index: #12). I: module.c: Unloaded "module-intended-roles" (index: #12). I: module.c: Unloading "module-suspend-on-idle" (index: #13). I: module.c: Unloaded "module-suspend-on-idle" (index: #13). I: module.c: Unloading "module-console-kit" (index: #14). I: client.c: Freed 0 "ConsoleKit Session /org/freedesktop/ConsoleKit/Session2" I: module.c: Unloaded "module-console-kit" (index: #14). I: module.c: Unloading "module-position-event-sounds" (index: #15). I: module.c: Unloaded "module-position-event-sounds" (index: #15). I: module.c: Unloading "module-cork-music-on-phone" (index: #16). I: module.c: Unloaded "module-cork-music-on-phone" (index: #16). I: main.c: Daemon terminated. I believe the relevant part is this: E: module.c: Failed to open module "module-combine-sink": file not found E: main.c: Module load failed. E: main.c: Failed to initialize daemon. I tried uninstalling and reinstalling pulseaudio, I tried to find a way to install module-combine-sink. Nothing worked. I'm on a Debian Squeeze 32-bit machine. What can I do to fix this?

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  • HOW TO Convert DVD to iPad(Also converts to iPods)?

    - by goodm
    DVD to iPad Converter (Also converts to iPods) DVD to iPad Converter is the easiest-to-use and fastest DVD to iPad converter for Apple iPad movie and iPad video. It can convert almost any kind of DVD to iPad movie or iPad video format. It is also a powerful DVD to iPad converter with a conversion speed that is much faster than real-time. With this converter, you can use your iPad as a portable DVD player and enjoy your favorite DVDs on your iPad. http://www.softseeking.com/prodail.aspx?proid=83" Features of this DVD to iPad Converter Three Running Modes --In Direct Mode, you can directly click the DVD menu to select the movie you want to rip. This mode is very easy for ripping DVD movies. --In Batch Mode, you can select the DVD titles or chapters you want to rip via a checkbox list. This mode is very easy for batch ripping music DVDs, MTV DVDs and episodic DVDs. --In 1-Click Mode, you just need one click to open a DVD, after which the rest of the task will be done automatically. This is a “designed-for-dummies” mode. Input Types You can convert almost any kind of DVD format to iPad. Output Splitting You can split your output video by DVD chapters and titles. Fully supports MTV DVDs and episodic DVDs. File Size and Quality Adjustment You can customize the output file size and corresponding video quality. Flexible Output Profiles You can easily customize the various video settings such as brightness, bit rate, etc. Language Selection for Subtitles and Audio Track In Direct mode and in Batch mode, you can select the subtitle and audio track language. (In 1-Click mode, the default language is chosen automatically). Video Crop You can crop your video to 16:9, 4:3, full screen, etc. Video Resize You can resize your video. For example, you can set it to "Keep aspect ratio" or "Stretch to fit screen." Other Converts DVD to MP3 audio. Supports Dolby, DTS Surround audio track. Converts to the latest iPhone, 4th generation iPad nano, nano chromatic, 2nd generation iPad touch, and Apple TV.

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  • AWS: setting up auto-scale for EC2 instances

    - by Elton Stoneman
    Originally posted on: http://geekswithblogs.net/EltonStoneman/archive/2013/10/16/aws-setting-up-auto-scale-for-ec2-instances.aspxWith Amazon Web Services, there’s no direct equivalent to Azure Worker Roles – no Elastic Beanstalk-style application for .NET background workers. But you can get the auto-scale part by configuring an auto-scaling group for your EC2 instance. This is a step-by-step guide, that shows you how to create the auto-scaling configuration, which for EC2 you need to do with the command line, and then link your scaling policies to CloudWatch alarms in the Web console. I’m using queue size as my metric for CloudWatch,  which is a good fit if your background workers are pulling messages from a queue and processing them.  If the queue is getting too big, the “high” alarm will fire and spin up a new instance to share the workload. If the queue is draining down, the “low” alarm will fire and shut down one of the instances. To start with, you need to manually set up your app in an EC2 VM, for a background worker that would mean hosting your code in a Windows Service (I always use Topshelf). If you’re dual-running Azure and AWS, then you can isolate your logic in one library, with a generic entry point that has Start() and Stop()  functions, so your Worker Role and Windows Service are essentially using the same code. When you have your instance set up with the Windows Service running automatically, and you’ve tested it starts up and works properly from a reboot, shut the machine down and take an image of the VM, using Create Image (EBS AMI) from the Web Console: When that completes, you’ll have your own AMI which you can use to spin up new instances, and you’re ready to create your auto-scaling group. You need to dip into the command-line tools for this, so follow this guide to set up the AWS autoscale command line tool. Now we’re ready to go. 1. Create a launch configuration This launch configuration tells AWS what to do when a new instance needs to be spun up. You create it with the as-create-launch-config command, which looks like this: as-create-launch-config sc-xyz-launcher # name of the launch config --image-id ami-7b9e9f12 # id of the AMI you extracted from your VM --region eu-west-1 # which region the new instance gets created in --instance-type t1.micro # size of the instance to create --group quicklaunch-1 #security group for the new instance 2. Create an auto-scaling group The auto-scaling group links to the launch config, and defines the overall configuration of the collection of instances: as-create-auto-scaling-group sc-xyz-asg # auto-scaling group name --region eu-west-1 # region to create in --launch-configuration sc-xyz-launcher # name of the launch config to invoke for new instances --min-size 1 # minimum number of nodes in the group --max-size 5 # maximum number of nodes in the group --default-cooldown 300 # period to wait (in seconds) after each scaling event, before checking if another scaling event is required --availability-zones eu-west-1a eu-west-1b eu-west-1c # which availability zones you want your instances to be allocated in – multiple entries means EC@ will use any of them 3. Create a scale-up policy The policy dictates what will happen in response to a scaling event being triggered from a “high” alarm being breached. It links to the auto-scaling group; this sample results in one additional node being spun up: as-put-scaling-policy scale-up-policy # policy name -g sc-psod-woker-asg # auto-scaling group the policy works with --adjustment 1 # size of the adjustment --region eu-west-1 # region --type ChangeInCapacity # type of adjustment, this specifies a fixed number of nodes, but you can use PercentChangeInCapacity to make an adjustment relative to the current number of nodes, e.g. increasing by 50% 4. Create a scale-down policy The policy dictates what will happen in response to a scaling event being triggered from a “low” alarm being breached. It links to the auto-scaling group; this sample results in one node from the group being taken offline: as-put-scaling-policy scale-down-policy -g sc-psod-woker-asg "--adjustment=-1" # in Windows, use double-quotes to surround a negative adjustment value –-type ChangeInCapacity --region eu-west-1 5. Create a “high” CloudWatch alarm We’re done with the command line now. In the Web Console, open up the CloudWatch view and create a new alarm. This alarm will monitor your metrics and invoke the scale-up policy from your auto-scaling group, when the group is working too hard. Configure your metric – this example will fire the alarm if there are more than 10 messages in my queue for over a minute: Then link the alarm to the scale-up policy in your group: 6. Create a “low” CloudWatch alarm The opposite of step 4, this alarm will trigger when the instances in your group don’t have enough work to do (e.g fewer than 2 messages in the queue for 1 minute), and will invoke the scale-down policy. And that’s it. You don’t need your original VM as the auto-scale group has a minimum number of nodes connected. You can test out the scaling by flexing your CloudWatch metric – in this example, filling up a queue from a  stub publisher – and watching AWS create new nodes as required, then stopping the publisher and watch AWS kill off the spare nodes.

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  • XNA Level Select Menu

    - by user29901
    I'll try to explain this the best I can. I'm trying to create a level select menu for a game I'm making. The menu is basically a group of blocks numbered 1-16, similar to something like the Angry Birds menu. What I've done is created a cursor, basically just an outline to surround a block, that the user can move to select what level they want to play. What I want it do is move from block to block instead of simply moving around on the X and Y axes as it does now. So my question is, how can I get the cursor (highLight in the below code) to move from block to block(destinationRectangle1 etc. in the code)? /// Field for the "cursor" Vector2 highLightPos = new Vector2(400, 200); ///This is the Update code KeyboardState keyBoardState = Keyboard.GetState(); if (keyBoardState.IsKeyDown(Keys.Up)) highLightPos.Y--; if (keyBoardState.IsKeyDown(Keys.Down)) highLightPos.Y++; if (keyBoardState.IsKeyDown(Keys.Right)) highLightPos.X++; if (keyBoardState.IsKeyDown(Keys.Left)) highLightPos.X--; /// This is the draw code SpriteBatch spriteBatch = ScreenManager.SpriteBatch; Rectangle screenRectangle = new Rectangle(0, 0, 1280, 720); Rectangle destinationRectangle1 = new Rectangle(400, 200, 64, 64); Rectangle frameRectangle1 = new Rectangle(0, 0, 64, 64); Rectangle destinationRectangle2 = new Rectangle(500, 200, 64, 64); Rectangle frameRectangle2 = new Rectangle(64, 0, 64, 64); Rectangle destinationRectangle3 = new Rectangle(600, 200, 64, 64); Rectangle frameRectangle3 = new Rectangle(128, 0, 64, 64); Rectangle destinationRectangle4 = new Rectangle(700, 200, 64, 64); Rectangle frameRectangle4 = new Rectangle(192, 0, 64, 64); Rectangle destinationRectangle5 = new Rectangle(800, 200, 64, 64); Rectangle frameRectangle5 = new Rectangle(256, 0, 64, 64); Rectangle destinationRectangle6 = new Rectangle(400, 300, 64, 64); Rectangle frameRectangle6 = new Rectangle(320, 0, 64, 64); Rectangle destinationRectangle7 = new Rectangle(500, 300, 64, 64); Rectangle frameRectangle7 = new Rectangle(384, 0, 64, 64); Rectangle destinationRectangle8 = new Rectangle(600, 300, 64, 64); Rectangle frameRectangle8 = new Rectangle(448, 0, 64, 64); Rectangle destinationRectangle9 = new Rectangle(700, 300, 64, 64); Rectangle frameRectangle9 = new Rectangle(0, 64, 64, 64); Rectangle destinationRectangle10 = new Rectangle(800, 300, 64, 64); Rectangle frameRectangle10 = new Rectangle(64, 64, 64, 64); Rectangle destinationRectangle11 = new Rectangle(400, 400, 64, 64); Rectangle frameRectangle11 = new Rectangle(128, 64, 64, 64); Rectangle destinationRectangle12 = new Rectangle(500, 400, 64, 64); Rectangle frameRectangle12 = new Rectangle(192, 64, 64, 64); Rectangle destinationRectangle13 = new Rectangle(600, 400, 64, 64); Rectangle frameRectangle13 = new Rectangle(256, 64, 64, 64); Rectangle destinationRectangle14 = new Rectangle(700, 400, 64, 64); Rectangle frameRectangle14 = new Rectangle(320, 64, 64, 64); Rectangle destinationRectangle15 = new Rectangle(800, 400, 64, 64); Rectangle frameRectangle15 = new Rectangle(384, 64, 64, 64); Rectangle destinationRectangle16 = new Rectangle(600, 500, 64, 64); Rectangle frameRectangle16 = new Rectangle(448, 64, 64, 64); spriteBatch.Begin(); spriteBatch.Draw(forestBG, screenRectangle, Color.White); spriteBatch.Draw(highLight, highLightPos, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle1, frameRectangle1, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle2, frameRectangle2, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle3, frameRectangle3, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle4, frameRectangle4, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle5, frameRectangle5, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle6, frameRectangle6, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle7, frameRectangle7, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle8, frameRectangle8, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle9, frameRectangle9, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle10, frameRectangle10, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle11, frameRectangle11, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle12, frameRectangle12, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle13, frameRectangle13, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle14, frameRectangle14, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle15, frameRectangle15, Color.White); spriteBatch.Draw(levelSelectTiles, destinationRectangle16, frameRectangle16, Color.White); spriteBatch.End(); PS, I'm aware that this code is probably inefficient, cumbersome or that there's a better way to draw parts of a tile sheet. Any suggestions would be appreciated.

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  • Windows Phone 7 Review &ndash; Part 1: LG Quantum

    - by Nikita Polyakov
    As many of my fellow geeks, I ran out and got a retail windows Phone 7 on the first day. Just had to have it :) I’ve had the developer prototypes in my hands for previous 3 months on and off, so I finally wanted to have one I call my own. I’ve rushed the Launch   I’ve checked out both AT&T and T-Mobile offerings on day 1 and decided on a Samsung Focus. Great screen, super light and thin. If you don’t believe me that this phone can compete with the best of the non-Phone 7 offerings - get it in your hand to compare for yourself. I have to say that even though the on-screen keyboard on Windows Phone 7 is one of the best, the amount of text I write on my phone and my expectation of how long that takes for a short reply are very high. Also the phone being so slick and sexy did not feel solid or confident in my hand or pocket. As the dust settled   Arrives the LG Quantum – now on AT&T and worldwide. First impression of the softer plastic, the back battery cover is solid metal - the entire phone feels solid and indestructible! Phone fits just right in my hand, it’s almost too good. It does not feel like it will crack in your jeans. I feel safe holding it and don’t feel like if I or someone were to bump into me walking it’d fly out of my hand. I’ve dropped and had thrown the Focus a few times on accident as it’s weight is negligible. I won’t even dream of lying the first day adjusting to a 3.5’ LCD screen from the Samsung’s blistering bright and poppy AMOLED 4’ was hard. But the colors and sharpness are still very good. I find it almost easier on the eyes actually for day to day use.  I had a chance to lay the phone down in the line with the prototypes and final versions of other phones that had LCD screens – LG makes HTC looks like a budget LCD compared to a high end LCD in the home theatre department. I am consistently complemented by friends that have the HD7 or Surround on how much better my screen looks. The screen just looks like the most color correct phone out of the line up. Even next to Samsung it makes it look oversaturated, but can’t match the true blacks compensating with true white.   Day to Day Usability   What I also noticed that is a huge difference is how much I am not accidently hitting the soft keys at the bottom. I real pain on Focus since holding it in am average size hand already would accidently touch the controls at the bottom. QWERTY keyboard on this phone is great. It’s like the mission for LG is “make it solid!”. Keyboard has a very durable feel.   LG’s has a secret wild card though is the DLNA support. If you seen an ad for it, you should. Imagine this – playing a song from your phone straight to your network connected A/V receiver. Done. Pictures to TV. Done. Video. Done. DLNA works with components that advertise to as well as Windows 7, XBOX 360 and other consoles.  I will write an extensive review of that experience in near future. LG Exclusive apps – from panorama photo taker to voice to text translator and even look-n-type app that works like a backup inverse camera, there is quite a bit there that won’t be found on the other phones. I’ll review those in more detail in another segment. Conclusion So for a quick comparison: If you want a phone that is super thin, light and is core reference of a Windows Phone 7 – Samsung Focus it is. If you want a great phone with solid secure feel, real keyboard, media features - the hands down winner is LG Quantum.   You can pick up the LG Quantum at AT&T in US and worldwide as LG Optimus 7Q.   Final thought: I have not had SmartPhone that I felt was a reliable trusty primary communication device since Samsung BlackJack II, this time the LG got the crown.   [ Disclosure: Phone was provided to me free of charge. That has been the case for all of my phones for years, nothing new - I get them all. ]

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  • What Counts for a DBA: Humility

    - by drsql
    In football (the American sort, naturally,) there are a select group of players who really hope to never have their names called during the game. They are members of the offensive line, and their job is to protect other players so they can deliver the ball to the goal to score points. When you do hear their name called, it is usually because they made a mistake and the player that they were supposed to protect ended up flat on his back admiring the clouds in the sky instead of advancing towards the goal to scoring point. Even on the rare occasion their name is called for a good reason, it is usually because they were making up for a teammate who had made a mistake and they covered up for them. The role of offensive lineman is a very good analogy for the role of the admin DBA. As a DBA, you are called on to be barely visible and rarely heard, protecting the company data assets tenaciously, even though the enemies to our craft surround us on all sides:. Developers: Cries of ‘foul!’ often ensue when the DBA says that they want data integrity to be stringently enforced and that documentation is needed so they can support systems, mostly because every error occurrence in the enterprise will be initially blamed on the database and fall to the DBA to troubleshoot. Insisting too loudly may bring those cries of ‘foul’ that somewhat remind you of when your 2 year old daughter didn't want to go to bed. The result of this petulance is that the next "enemy" gets involved. Managers: The concerns that motivate DBAs to argue will not excite the kind of manager who gets his technical knowledge from a glossy magazine filled with buzzwords, charts, and pretty pictures. However, the other programmers in the organization will tickle the buzzword void with a stream of new-sounding ideas and technologies constantly, along with warnings that if we did care about data integrity and document things, the budget would explode! In contrast, the arguments for integrity of data and supportability tend to be about as exciting as watching grass grow, and far too many manager types seem to prefer to smoke it than watch it. Packaged Applications: The DBA is rarely given a chance to review a new application that is being demonstrated for the enterprise, and rarer still is the DBA that gets a veto of an application because the database it uses has clearly been created by an architect that won't read a data modeling book because he is already married. More often than not this leads to hours of work for the DBA trying to performance-tune a database with a menagerie of rules that must be followed to stay within the  application support agreement, such as no changing indexes on a third party schema even though there are 10 billion rows instead of the 10 thousand when the system was last optimized. Hardware Failures: Physical disks, networking devices, memory, and backup devices all come with a measure known as ‘mean time before failure’ and it is never listed in centuries or eons. More like years, and the term ‘mean’ indicates that half of the devices are expected to fail before that, which by my calendar means any hour of any day that it wants to fail it will. But the DBA sucks it up and does the task at hand with a humility that makes them nearly invisible to all but the most observant person in the organization. The best DBAs I know are so proactive in their relentless pursuit of perfection that they detect many of the bugs (which they seldom caused) in the system well before they become a problem. In the end the DBA gets noticed for one of same two reasons as the offensive lineman. You make a mistake, like dropping a critical production database that had never been backed up; or when a system crashes for any reason whatsoever and they are on the spot with troubleshooting and system restoration plans that have been well thought out, tested, and tested again. Not because there is any glory in it, but because it is what they do.   Note: The characteristics of the professions referred to in this blog are meant to be overstated stereotypes for humorous effect, and even some DBAs aren't quite this perfect. If you are reading this far and haven’t hand written a 10 page flaming comment about how you are a _______ and you aren’t like this, that is awesome. Not every situation applies to everyone, but if you have never worked with a bad packaged app, a magazine trained manager, programmers that aren’t team players, or hardware that occasionally failed, relax and go have a unicorn sandwich before you wake up.

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  • Wrap or adorn wpf listview datatemplate

    - by Chris Cap
    I'm attempting to essentially wrap the contents of a DateTemplate in a listview gridview column with a border. What I want to know is if it's possible to supply an adorner that will surround that template so that I don't have to specify the border in every single datatemplate on every column (which is what I'm doing now). I've got something like this, but I know it's not right <Style TargetType="{x:Type ListBoxItem}"> <Setter Property="TemplateContent"> <Setter.Value> <ControlTemplate> <StackPanel> <Border BorderBrush="Green" BorderThickness="1"> <AdornedElementPlaceholder /> </Border> </StackPanel> </ControlTemplate> </Setter.Value> </Setter> </Style> This complains that Templatecontent is not a valid type. I've also tried with DataTemplate and that doesn't work either (understandably so). I know I could just create a DataTemplate, however the content for each column is different. At the very least, it binds to different fields. I'm wondering if there's a solution using a dynamic resource, but I don't know much about it. Thanks for your help EDIT: here's a sample of my listview <ListView ItemsSource="{Binding Path=OrderLines}" ItemContainerStyle="{StaticResource ResourceKey=ListViewItemContainerStyle}"> <ListView.View> <GridView> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <TextBox MaxWidth="30" Width="30" MaxLength="2" Text="{Binding Path=Quantity,ValidatesOnDataErrors=True}" /> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridView> <ListView.View> </ListView> Essentially I want to wrap that text box in the data template and any other items in additional columns.

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  • EXC_BAD_ACCESS when scrolling table after json data is imported

    - by Michael Robinson
    Hello, I'm having a bear of a time trying to figure out why I'm getting a EXC_BAD ACCESS error. The console is giving me this eror: " -[CFArray objectAtIndex:]: message sent to deallocated instance 0x3b14110", I Can't figure it out...Thanks in advance. // Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [rows count]; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; } // Configure the cell. NSDictionary *dict = [rows objectAtIndex: indexPath.row]; cell.textLabel.text = [dict objectForKey:@"name"]; cell.detailTextLabel.text = [dict objectForKey:@"age"]; return cell; } // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; self.navigationController.navigationBar.tintColor = [UIColor colorWithRed:0.0/255.0 green:207.0/255.0 blue:255.0/255.0 alpha:1.0]; self.title = NSLocalizedString(@"How Big Now", @"How Big Now"); NSURL *url = [NSURL URLWithString:@"http://10.0.1.8/~imac/iphone/jsontest.php"]; NSString *jsonreturn = [[NSString alloc] initWithContentsOfURL:url]; // NSLog(jsonreturn); // Look at the console and you can see what the restults are NSData *jsonData = [jsonreturn dataUsingEncoding:NSUTF32BigEndianStringEncoding]; NSError *error = nil; // In "real" code you should surround this with try and catch NSDictionary * dict = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData error:&error]; if (dict) { rows = [dict objectForKey:@"member"]; } NSLog(@"Array: %@",rows); [jsonreturn release]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)dealloc { [super dealloc]; } @end

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  • vim-powerline colors are out of whack in urxvt

    - by komidore64
    I have attached two images showing what my vim-powerline looks like. As you can see, something has happened to the colors and I cannot figure out how to fix it. I'm running Fedora 17 on a clean install with i3 (default config) and urxvt. Here is my bashrc: # .bashrc if [[ "$(uname)" != "Darwin" ]]; then # non mac os x # source global bashrc if [[ -f "/etc/bashrc" ]]; then . /etc/bashrc fi export TERM='xterm-256color' # probably shouldn't do this fi # bash prompt with colors # [ <user>@<hostname> <working directory> {current git branch (if you're in a repo)} ] # ==> PS1="\[\e[1;33m\][ \u\[\e[1;37m\]@\[\e[1;32m\]\h\[\e[1;33m\] \W\$(git branch 2> /dev/null | grep -e '\* ' | sed 's/^..\(.*\)/ {\[\e[1;36m\]\1\[\e[1;33m\]}/') ]\[\e[0m\]\n==> " # execute only in Mac OS X if [[ "$(uname)" == 'Darwin' ]]; then # if OS X has a $HOME/bin folder, then add it to PATH if [[ -d "$HOME/bin" ]]; then export PATH="$PATH:$HOME/bin" fi alias ls='ls -G' # ls with colors fi alias ll='ls -lah' # long listing of all files with human readable file sizes alias tree='tree -C' # turns on coloring for tree command alias mkdir='mkdir -p' # create parent directories as needed alias vim='vim -p' # if more than one file, open files in tabs export EDITOR='vim' # super-secret work stuff if [[ -f "$HOME/.workbashrc" ]]; then . $HOME/.workbashrc fi # Add RVM to PATH for scripting if [[ -d "$HOME/.rvm/bin" ]]; then # if installed PATH=$PATH:$HOME/.rvm/bin fi and my Xdefaults: ! URxvt config ! colors! URxvt.background: #101010 URxvt.foreground: #ededed URxvt.cursorColor: #666666 URxvt.color0: #2E3436 URxvt.color8: #555753 URxvt.color1: #993C3C URxvt.color9: #BF4141 URxvt.color2: #3C993C URxvt.color10: #41BF41 URxvt.color3: #99993C URxvt.color11: #BFBF41 URxvt.color4: #3C6199 URxvt.color12: #4174FB URxvt.color5: #993C99 URxvt.color13: #BF41BF URxvt.color6: #3C9999 URxvt.color14: #41BFBF URxvt.color7: #D3D7CF URxvt.color15: #E3E3E3 ! options URxvt*loginShell: true URxvt*font: xft:DejaVu Sans Mono for Powerline:antialias=true:size=12 URxvt*saveLines: 8192 URxvt*scrollstyle: plain URxvt*scrollBar_right: true URxvt*scrollTtyOutput: true URxvt*scrollTtyKeypress: true URxvt*urlLauncher: google-chrome and finally my vimrc set nocompatible set dir=~/.vim/ " set one place for vim swap files " vundler for vim plugins ---- filetype off set rtp+=~/.vim/bundle/vundle call vundle#rc() Bundle 'gmarik/vundle' Bundle 'tpope/vim-surround' Bundle 'greyblake/vim-preview' Bundle 'Lokaltog/vim-powerline' Bundle 'tpope/vim-endwise' Bundle 'kien/ctrlp.vim' " ---------------------------- syntax enable filetype plugin indent on " Powerline ------------------ set noshowmode set laststatus=2 let g:Powerline_symbols = 'fancy' " show fancy symbols (requires patched font) set encoding=utf-8 " ---------------------------- " ctrlp ---------------------- let g:ctrlp_open_multiple_files = 'tj' " open multiple files in additional tabs let g:ctrlp_show_hidden = 1 " include dotfiles and dotdirs in ctrlp indexing let g:ctrlp_prompt_mappings = { \ 'AcceptSelection("e")': ['<c-t>'], \ 'AcceptSelection("t")': ['<cr>', '<2-LeftMouse>'], \ } " remap <cr> to open file in a new tab " ---------------------------- set showcmd set tabpagemax=100 set hlsearch set incsearch set nowrapscan set ignorecase set smartcase set ruler set tabstop=4 set shiftwidth=4 set expandtab set wildmode=list:longest autocmd BufWritePre * :%s/\s\+$//e "remove trailing whitespace " :REV to "revert" file to state of the most recent save command REV earlier 1f " disable netrw -------------- let g:loaded_netrw = 1 let g:loaded_netrwPlugin = 1 " ---------------------------- Any guidance as to fixing the statusline would be fantastic. I've found a github issue outlining almost the exact same problem, but the solution was never posted. Thank you.

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  • Analytic functions – they’re not aggregates

    - by Rob Farley
    SQL 2012 brings us a bunch of new analytic functions, together with enhancements to the OVER clause. People who have known me over the years will remember that I’m a big fan of the OVER clause and the types of things that it brings us when applied to aggregate functions, as well as the ranking functions that it enables. The OVER clause was introduced in SQL Server 2005, and remained frustratingly unchanged until SQL Server 2012. This post is going to look at a particular aspect of the analytic functions though (not the enhancements to the OVER clause). When I give presentations about the analytic functions around Australia as part of the tour of SQL Saturdays (starting in Brisbane this Thursday), and in Chicago next month, I’ll make sure it’s sufficiently well described. But for this post – I’m going to skip that and assume you get it. The analytic functions introduced in SQL 2012 seem to come in pairs – FIRST_VALUE and LAST_VALUE, LAG and LEAD, CUME_DIST and PERCENT_RANK, PERCENTILE_CONT and PERCENTILE_DISC. Perhaps frustratingly, they take slightly different forms as well. The ones I want to look at now are FIRST_VALUE and LAST_VALUE, and PERCENTILE_CONT and PERCENTILE_DISC. The reason I’m pulling this ones out is that they always produce the same result within their partitions (if you’re applying them to the whole partition). Consider the following query: SELECT     YEAR(OrderDate),     FIRST_VALUE(TotalDue)         OVER (PARTITION BY YEAR(OrderDate)               ORDER BY OrderDate, SalesOrderID               RANGE BETWEEN UNBOUNDED PRECEDING                         AND UNBOUNDED FOLLOWING),     LAST_VALUE(TotalDue)         OVER (PARTITION BY YEAR(OrderDate)               ORDER BY OrderDate, SalesOrderID               RANGE BETWEEN UNBOUNDED PRECEDING                         AND UNBOUNDED FOLLOWING),     PERCENTILE_CONT(0.95)         WITHIN GROUP (ORDER BY TotalDue)         OVER (PARTITION BY YEAR(OrderDate)),     PERCENTILE_DISC(0.95)         WITHIN GROUP (ORDER BY TotalDue)         OVER (PARTITION BY YEAR(OrderDate)) FROM Sales.SalesOrderHeader ; This is designed to get the TotalDue for the first order of the year, the last order of the year, and also the 95% percentile, using both the continuous and discrete methods (‘discrete’ means it picks the closest one from the values available – ‘continuous’ means it will happily use something between, similar to what you would do for a traditional median of four values). I’m sure you can imagine the results – a different value for each field, but within each year, all the rows the same. Notice that I’m not grouping by the year. Nor am I filtering. This query gives us a result for every row in the SalesOrderHeader table – 31465 in this case (using the original AdventureWorks that dates back to the SQL 2005 days). The RANGE BETWEEN bit in FIRST_VALUE and LAST_VALUE is needed to make sure that we’re considering all the rows available. If we don’t specify that, it assumes we only mean “RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW”, which means that LAST_VALUE ends up being the row we’re looking at. At this point you might think about other environments such as Access or Reporting Services, and remember aggregate functions like FIRST. We really should be able to do something like: SELECT     YEAR(OrderDate),     FIRST_VALUE(TotalDue)         OVER (PARTITION BY YEAR(OrderDate)               ORDER BY OrderDate, SalesOrderID               RANGE BETWEEN UNBOUNDED PRECEDING                         AND UNBOUNDED FOLLOWING) FROM Sales.SalesOrderHeader GROUP BY YEAR(OrderDate) ; But you can’t. You get that age-old error: Msg 8120, Level 16, State 1, Line 5 Column 'Sales.SalesOrderHeader.OrderDate' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause. Msg 8120, Level 16, State 1, Line 5 Column 'Sales.SalesOrderHeader.SalesOrderID' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause. Hmm. You see, FIRST_VALUE isn’t an aggregate function. None of these analytic functions are. There are too many things involved for SQL to realise that the values produced might be identical within the group. Furthermore, you can’t even surround it in a MAX. Then you get a different error, telling you that you can’t use windowed functions in the context of an aggregate. And so we end up grouping by doing a DISTINCT. SELECT DISTINCT     YEAR(OrderDate),         FIRST_VALUE(TotalDue)              OVER (PARTITION BY YEAR(OrderDate)                   ORDER BY OrderDate, SalesOrderID                   RANGE BETWEEN UNBOUNDED PRECEDING                             AND UNBOUNDED FOLLOWING),         LAST_VALUE(TotalDue)             OVER (PARTITION BY YEAR(OrderDate)                   ORDER BY OrderDate, SalesOrderID                   RANGE BETWEEN UNBOUNDED PRECEDING                             AND UNBOUNDED FOLLOWING),     PERCENTILE_CONT(0.95)          WITHIN GROUP (ORDER BY TotalDue)         OVER (PARTITION BY YEAR(OrderDate)),     PERCENTILE_DISC(0.95)         WITHIN GROUP (ORDER BY TotalDue)         OVER (PARTITION BY YEAR(OrderDate)) FROM Sales.SalesOrderHeader ; I’m sorry. It’s just the way it goes. Hopefully it’ll change the future, but for now, it’s what you’ll have to do. If we look in the execution plan, we see that it’s incredibly ugly, and actually works out the results of these analytic functions for all 31465 rows, finally performing the distinct operation to convert it into the four rows we get in the results. You might be able to achieve a better plan using things like TOP, or the kind of calculation that I used in http://sqlblog.com/blogs/rob_farley/archive/2011/08/23/t-sql-thoughts-about-the-95th-percentile.aspx (which is how PERCENTILE_CONT works), but it’s definitely convenient to use these functions, and in time, I’m sure we’ll see good improvements in the way that they are implemented. Oh, and this post should be good for fellow SQL Server MVP Nigel Sammy’s T-SQL Tuesday this month.

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  • Adaptive ADF/WebCenter template for the iPad

    - by Maiko Rocha
    One of my WebCenter Portal customers was asking about adaptive design with ADF/WebCenter Portal and how they could go about creating an adaptive iPad template for their WebCenter Portal application. They were looking not only for the out-of-the-box support for mobile Safari which is certified against PS5+ (11.1.1.6) for ADF/WebCenter - but also to create a specific template to streamline their workflow on the iPad. Seems like they wanted something in the lines of Yahoo! Mail provides for the iPad - so the example I will use is shamelessly inspired by Y! Mail's iPad UI.  But first, let's quickly understand how can we bake in some adaptive goodness into ADF Faces. First thing we need to understand is, yes, there are a couple of constraints that we will need to work around, namely, the use or layout managers and skins. Please also keep in mind that I'm not and I don't pretend to be a web designer, much less an UX specialist, so feel free to leave your thoughts on the matter in the comments section. Now, back to the limitations. Layout Managers ADF Faces layout managers create an abstraction on top of the generated HTML code for a page so a developer doesn't need to be worried about how to size and dimension the UI layout (eg, af:panelStretchLayout). Although layout managers are very helpful, in this specific situation we will need to know a little bit more of how the final HTML is being rendered so we can apply the CSS class accordingly and create transition containers where the media queries will be applied - now, if you're using 11gR2 (11.1.2.2.3) there's the new component af:panelGridLayout (here and here) that will greatly improve creating responsive templates and pages because it is based on the grid/fluid systems and will generate straight out to DIVs on your final page. For now, I'm limited to PS5 and the af:panelStretchLayout component as a starting point because that's the release my customer is on. Skins You won't be able to use media queries, or use anything with "@" notation on the skin CSS file - the skin pre-processor will remove all extraneous "@" from the CSS file. The solution is to split your CSS in two separate files: a skin CSS file and plain CSS where you will add the media queries. The issue here is that you won't be able to use media queries for any faces components. We can, though, still apply the media queries for the components like af:panelGroupLayout and af:panelBorderLayout through their styleClass property to enable these components to be responsive to to the iPad orientation, by changing its dimensions, font sizes, hide/show areas, etc. Difference between responsive and adaptive design The best definition of adaptive vs responsive web design I could find is this: “Responsive web design,” as coined by Ethan Marcotte, means “fluid grids, fluid images/media & media queries.” “Adaptive web design,” as I use it, is about creating interfaces that adapt to the user’s capabilities (in terms of both form and function). To me, “adaptive web design” is just another term for “progressive enhancement” of which responsive web design can (an often should) be an integral part, but is a more holistic approach to web design in that it also takes into account varying levels of markup, CSS, JavaScript and assistive technology support. Responsive/adapative web design is much more than slapping an HTML template with CSS around your content or application. The content and application themselves are part of your web design - in other words, a responsive template is just an afterthought if it is not originating from a responsive design the involves the whole web application/s. Tips on responsive / adapative design with ADF/WebCenter Some of the tips listed below were already mentioned in multiple blog posts about ADF layout and skinning, but it is still worth remembering: a simple guideline for ADF/WebCenter apps would be to first create a high-level group of devices, for example: smartphones, tablets,  and desktop. For each of these large groups, create the basic structure to provide responsiveness: a page template, a skin, and an external CSS: pagetemplate_smartphone.jspx, smartphone_skin.css, smartphone-responsive.css pagetemplate_tablet.jspx, tablet_skin.css, tablet-responsive.css pagetemplate_desktop.jspx, desktop_skin.css, desktop-responsive.css These three assets can be changed on the fly through an user-agent check on the server side, delivering the right UI to the right device. Within each of the assets, you can make fine adjustments for each subgroup of devices with media queries - for example, smart phones with different screen dimensions and pixel density. Having these three groups and the corresponding assets per group seem to be a good compromise between trying to put everything on a single set of assets - specially considering the constraints above - and going to the other side of the spectrum to create assets per discrete device (iPhone4, iPhone5, Nexus, S3, etc.). Keep in mind that these are my rules and are not in any shape or form a best practice - this is how it fits best for the scenarios I've been working with. If you need to use HTML tags on your page, surround them with af:group to protect the DOM structure For stretchable/fluid layouts: Use non-stretching containers: panelGroupLayout, panelBorderLayout, … panelBorderLayout can be used to approximate HTML table component To avoid multiple scroll bars, do not nest scrolling PanelGroupLayout components. Consider layout="vertical" For stretchable/fluid layouts: Most stretchable ADF components also work in flowing context with dimensionsFrom="auto" To stretch a component horizontally, use styleClass="AFStretchWidth" instead of  "width:100%" Skinning Don't use CSS3 @media, @import, animations, etc. on skin css files. They will be removed. CSS3 properties within a class (box-shadow, transition, etc.) work just fine. Consider resetting some skin classes to better control their rendering: body {color: inherit;font: inherit;} af|document {-tr-inhibit: all;} af|commandLink {-tr-inhibit: all;} af|goLink {-tr-inhibit: all;} af|inputText::content {font: inherit;} Specific meta tags and CSS properties: Use  <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0"/> to avoid zooming (if you want) Use -webkit-overflow-scrolling: touch to enable native momentum scrolling within overflown areas (here) Use text-rendering: optmizeLegibility to improve readability. (here) User text-overflow: ellipsis to gracefully crop overflown text. (here) The meta-tags are included in each and every page in the metaContainer facet of af:document tag. You can also use a javascript to inject the meta-tags from the template. For the purpose of the example, I wanted to use as few workarounds as possible.   The iPad template and sample application This sample application has been built as a WebCenter Portal application, but you will also be able to reuse the template and techniques on your vanilla ADF application. Keep in mind that I'm neither a designer nor a CSS specialist, so please don't bash me too much on the messy CSS file you'll find on the application.  I've extended the provided PreferencesBean class that comes with WebCenter Portal and added code to dinamically change the template and skin on the fly.   This is the sample application in landscape orientation: This is the sample application in portrait orientation - the left side menu hides automatically based on a CSS media query: Another screenshot with a skinned popup opened: This is a sample application for you to play with - ideally you shouldn't use it as a starting point. On the left side bar you will find links rendered from a WebCenter Portal navigation model - the link triggers a full request through an af:goLink, while the light blue PPR button triggers a PPR navigation. The dark blue toolbar buttons at the top don't have any function,while the Approve and Reject buttons show a skinned popup. The search box of course doesn't have any behavior attahed to it either. There's a known issue right now with some PPR calls that are randomly generating a 403 error redirecting to the login page - I didn't have time to investigate if this is iOS6 specific or not - if you have any insights please let me know your findings. You can download the sample here.

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  • Letter to Ballmer: Making Better Consumer Devices

    - by andrewbrust
    Last year, I wrote Steve Ballmer an email, and he was kind enough to write me back.  The email contained a scan of a column I wrote praising Microsoft’s BI strategy.  His reply contained three simple words: “Super nice  thanks.” Well, now I’d like to write to Steve again, in an open letter format, and this time the love may be a bit tougher.  But I’m still super earnest. The past two days have been eventful ones for Microsoft: The company announced the departure of company veterans Robbie Bach and J Allard and the market announced Apple is now besting Microsoft in market capitalization. Plus, announcements were made that make it plain that Ballmer will, in effect, be running Microsoft’s Entertainment & Devices division himself. With that in mind, I’d like to offer my list of a dozen things I think Microsoft’s CEO should do to improve that division’s offerings and, hopefully, its bottom line. So here goes:   1. On Windows Phone 7, Stay the Course The press is teeming with headlines and reader comments proclaiming the death-before-arrival of Windows Phone 7.  That’s plain silly.  You’ve got the makings of a great and unique SmartPhone platform, and you’re the only company (even considering RIM) that can offer full fidelity Exchange integration, not to mention implementing Office on the device.  Let the existing team finish this puppy and ship it. And then have them pump out a few updates, over-the-air, quickly.  Show them that Google Android’s not the only product that can do good, rapid dot releases. And another thing: make sure your OEMs’ devices have flawless touch screens.  If they don’t, then you shouldn’t certify them for delivery to customers.  Period. Oh, and kill the Kin, quietly.  It was DOA, and you know it.   2. Move Media Center to the Xbox Platform Media Center is, at its core, a good product.  But delivering a media distribution and DVR platform on a sophisticated PC operating system like Windows 7 just creates too many moving parts.  Xbox already functions as the best Media Center extender device – it should actually be the hub as well. Media Center is mostly based on .NET code – and XNA is a .NET environment for Xbox – find a way to bridge that small gap and make Media Center a joy to work with instead of a frustration.  Beating Apple TV out of this sub-market is the lowest hanging fruit on the tree (goofy pun, but it’s true).   3. Integrate Media Center with Mediaroom, or Kill the Latter You have two media products with almost identical names.  One is for standalone DVRs and the other is for IPTV cable set tops with DVR capabilities.  Can we merge these please?  My previous request of putting Media Center on Xbox would seem to tie into this nicely, since you’ve announced plans to do that with Mediaroom already.   4. Fix the Red Ring of Death People love the Xbox, but they really don’t love sending their consoles back every 18-24 months, when they get a bunch of red lights flashing on power up.  You’ve handled this defect about as gracefully as possible, but it’s been around for a long time now and it doesn’t seem to be fixed yet.  You can do better.  In fact, you must do better, or you insult your customers.   5. Add Blu Ray to Xbox I know, streaming movies are the future; physical media is legacy technology.  So if that’s true, why did you back HD DVD so hard?  You know why: for now, the film studios won’t allow a large selection of new release, HD, surround sound content be distributed on any medium other than Blu Ray or cable pay per view/on-demand.  Don’t you want home theater buffs to see the Xbox as a fantastic device for their rigs?  Don’t you want to put PlayStation 3 out of its misery?  And if you follow my suggestions above (move Media Center to the Xbox and fix the Red Ring problem), you’d have it all sewn up.  Do I think Blu Ray functionality will move a lot of units?  No.  Do I think that it would move more units with desperately needed influential home theater consumers?  You bet.  And you might sell more ZunePass subscriptions in the process. But while you’re at it, make the fan quieter, please.   6. Make More of Windows Home Server Home Server is a fantastic product.  And for reasons unknown to me, it seems like you’re letting it languish.  Development of the add-in ecosystem seems underfunded.  WHS’ unparalleled ease of use and reliability for home PC backup (and emergency restores) goes unsung.  Product cycles are slow.  Support for your OEMs, who are doing great work, especially in the green space with Atom CPUs, seems lacking.  You’ve married a trophy girl and you keep her cloistered at home!  That’s cruel, unusual and, um, incredibly ill-advised.  Make use of this ace card, and while you’re at it, give it real integration with Media Center.  The integration thus far proof-of-concept quality.  You should go way past that – both products will benefit immeasurably.   7. Set Up a Partner Platform for Custom Installers There’s a whole sub-industry of companies that install, integrate and configure home theater, security and connected home products.  They have an industry group. They are influential in the high-end of the consumer electronics industry, and so are their customers.  They love Media Center and they love Windows Home Server.  But I have talked to several of them at the Consumer Electronics Show and they tell me you don’t love them.  They find it very difficult to do business with Microsoft, even though they want nothing more than to sell and evangelize your platform.  This is a travesty.  Please fix it.  Get Allison Watson and the Microsoft Partner Network on board and have her hire someone who knows how to run a channel program for consumer electronics companies.  Problem solved.  Markets expanded.   8. Make Your Own Hardware In other areas, I know you love your partners.  I help run one, so I appreciate that.  But when it came to Xbox and Zune you built them it yourself (albeit on a contract basis, which is fine).  Windows Phone 7 has a chance to work as an OEM play, but it would work better if you produced the devices.  At least consider building a reference device that sells alongside your OEMs’ offerings.  That’s what Google did with the Nexxus One.  And while that phone was not itself a big seller, it catalyzed two wonderful things : (1) a quality bar was set and (2) partners exceeded it.  Before the Nexxus One, the best Android handset out there was the Motorola Droid. The Nexxus One was better, and the HTC Droid Incredible and Evo 4G are now even better than Google’s phone, which is why Verizon and Sprint decided not to carry it.  Imagine if all Windows Phone 6.x devices were on par with the HTC HD2.  I tend to believe you’d have a lot bigger market share than you do now.   9. Continue with Your Retail Initiative From what I hear, it sounds like it’s going well.  And this goes right along with making your own hardware.  When you build it, they will come.  And then it makes the likes of Best Buy and Staples do better.   10. Make an Acquisition (or Two) TiVo and/or Moxi look ripe for the picking.  With their ability to build stuff people love and your ability to run a business, you might just have something.  But do a better job than you did when you bought Danger.  Buy the ideas, not just the customers, eh?   11. Make Beautiful Stuff You’ve heard this one before, I know.  But I have some head-shrinking advice on this one.  You know that Apple obsesses over its industrial design.  You know that appeals to consumers.  But it seems you think doing so is Apple’s game exclusively and so you shouldn’t even try.  Bull dinky.  Come to New York and visit the Museum of Modern Art’s Architecture and Design gallery.  You’ll see that lots of companies and product categories have had very high design value well before Apple existed.  You can do this, and the Zune HD was a great start.  Now run with that.  Find those negative voices in your head that are telling you that you can’t and shut them up.  For good.   12. Burst the Bubble Some of the products you’ve built seem like they were conceived in a bizarro world.  That would appear to be the result of groupthink.  You must do better.  And there’s lots of people willing to advise you.  This includes just about everyone in the Regional Director program, and probably a bunch of MVPs.  Heck, I bet the guys at Engadget could help out too.  Imagine if you let them see the Kin before it shipped.  Talk to high-end gear consumers.  Talk to Best Buy and CostCo customers too.   Signing Off I hope this was of value to you.  As I wrote this I kept telling myself how obvious, even trite, some of these pieces of advice were and then, because of that, doubting they’d really help.  But I decided that they must not be obvious to Microsoft.  Sometimes when you get wrapped up in stuff, it’s hard to clear your head.  I think my head’s pretty clear here though (I’m wrapped up in other stuff), so maybe my perspective can help.  If not, well, then, I guess they all can’t be super nice.

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