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  • asp.net mvc - bootstrapping object via model binder

    - by csetzkorn
    Hi, I have a domain object Thing which can contain several Categories. So I have implemented my HTML helper to create a checkbox group of all possible Categories. I have no problem receiving: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Thing Thing, List<string> Categories) However I am wondering whether I could use a custom Model binder to use just this: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Thing Thing) So basically I am looking for a way to use the model binder to bootstrap the object tree/graph. Any pointers appreciated. Thanks. Christian

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  • Plot Zoom In/Out

    - by Naveen
    Hello All, I am doing dynamic plotting using core plot library and i have placed that plot on UIScrollView so that i can scroll the plot. Now i want to do Pinch Zooming on that, means when i m doing pinch zooming that that part where i have pinched will be zoomed,other part will also be zoomed but we can see certain par of the graph at one time so wherever i have pinched that part will be shown in zoomed state in focused view and when i am doing scrolling i can see other part also in a zoom state. Hope you understood my query!!! Waiting for your response. Thanks

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  • Create bootable partition from image

    - by Carson Darling
    I have a Macbook Pro with a dead CD drive. I don't have easy access to a replacement drive. I'm trying to install Ubuntu, and I can't get the MBP to recognize a USB stick as a bootable media (I believe MBP's have issues with booting from USB in some cases). Is it possible to take a disk image and write it to a partition on the HDD so that I can then boot from that partition and then install the OS onto a third partition? Partition layout: 150GB OS X 50GB Ubuntu destination 5GB Ubuntu install image

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  • CPU and profiling not supported for remote jvisualvm session

    - by yawn
    When monitoring a remote app (using jstatd) I can neither profile nor monitor cpu consumption. Heap monitoring (provided I do not use G1) works. jvisualvm provides the message "Not supported for this JVM." in the CPU graph window. Is there anything missing in my setup? The google showed up next to no results. The local environment (Mac OS X 10.6): java version "1.6.0_15" Java(TM) SE Runtime Environment (build 1.6.0_15-b03-219) Java HotSpot(TM) 64-Bit Server VM (build 14.1-b02-90, mixed mode) The remote environment (Linux version 2.6.16.27-0.9-smp (gcc version 4.1.0 (SUSE Linux))): java version "1.6.0_16" Java(TM) SE Runtime Environment (build 1.6.0_16-b01) Java HotSpot(TM) 64-Bit Server VM (build 14.2-b01, mixed mode) Local monitoring works as advertised.

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  • Why is my drive so full on my Windows 2008 Server

    - by Zee Tee
    My server is Windows 2008 R2 Standard Server. I have a secondary SAS drive where all my website files are with the following properties: NTFS File System Allow files on this drive to have contents indexed in addition to file properties IS CHECKED Simple Layout Basic Type Healthy (Page File, Primary Partition) Status I have 3 folders on this drive: Folder 1: 4GB Folder 2: 2GB Folder 3: 20GB (These are the sizes of them when I click properties) But the drive says it only has 10GB left out of 65GB. Why? I'm trying to make more room on this drive.

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  • Ubuntu 12 Server messing up my hard disk

    - by Jeroen Jacobs
    I'm installing Ubuntu server on a disk with 12GB available. During the setup, I choose the default LVM-based partition layout. However for some reason, Ubuntu decides that it only wants to use 4GB of this disk. How do I reclaim the remaining space of the hard disk? "lvextent" doesn't work btw... output of df -h: Filesystem Size Used Avail Use% Mounted on /dev/mapper/ubuntu-root 4.3G 3.4G 754M 82% / udev 3.9G 4.0K 3.9G 1% /dev tmpfs 1.6G 756K 1.6G 1% /run none 5.0M 0 5.0M 0% /run/lock none 3.9G 0 3.9G 0% /run/shm /dev/sda1 228M 25M 192M 12% /boot output of pvdisplay: --- Physical volume --- PV Name /dev/sda5 VG Name ubuntu PV Size 12.32 GiB / not usable 2.00 MiB Allocatable yes PE Size 4.00 MiB Total PE 3154 Free PE 8 Allocated PE 3146 PV UUID dD06RZ-kGcL-1tTX-Ruds-XIDG-ssMd-FIUkzZ my partitions: Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 501758 26343423 12920833 5 Extended /dev/sda5 501760 26343423 12920832 8e Linux LVM when I try lvextent, it says there is not enough diskspace.

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  • Is it me or is developing web based data entry GUIs a big pain?

    - by GregH
    Maybe it's me or maybe it isn't. I don't have a huge amount of experience of developing web based data entry software but do have some. I used to do it quite a bit years ago. Used to use Oracle Forms, Visual Studio, various 4th generation languages, and performing the user interface layout used to be a snap. Now doing the user interface for developing web applications seems to be a huge pain in the rear. Just trying to get text entry fields and widgets to go where they are supposed to go on the screen is a total pain. You have to know Javascript, CSS, JQuery, HTML, etc. There must be an easier way to develop data entry forms that produce the needed underlying code for a web page. Maybe I'm just not looking in the right place. There must be some WYSIWYG GUI development tools for the web for developing data entry forms out there. Anybody know of any?

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  • Graphing new users by date with Seer

    - by Danger Angell
    I'd like to implement a rolling graph showing new users by day over the last 7 days using Seer. I've got Seer installed: http://www.idolhands.com/ruby-on-rails/gems-plugins-and-engines/graphing-for-ruby-on-rails-with-seer I'm struggling to get my brain around how to implement. I've got an array of the Users I want to plot: @users = User.all( :conditions = {:created_at = 7.days.ago..Time.zone.now}) Can't see the right way to implement the :data_method to roll them up by created_at date. Anyone done this or similar with Seer? Anyone smarter than me able to explain this after looking at the Seer sample page (linked above)?

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  • Convert swf file to mp4 file using FFMPEG

    - by user1624004
    I now want to show an html5 video on a html page. Now I have an sample.swf file, I want to convert it to .mp4 or .ogg or .webm file. I have tried: ffmpeg -i sample.swf sample.mp4 But I got this error: [swf @ 0000000001feef40] Could not find codec parameters for stream 0 (Audio: pcm_s16le, 5512 Hz, 1 channels, 88 kb/s): unspecified sample format Consider increasing the value for the 'analyzeduration' and 'probesize' options [swf @ 0000000001feef40] Estimating duration from bitrate, this may be inaccurate Guessed Channel Layout for Input Stream #0.0 : mono Input #0, swf, from 'sample.swf': Duration: N/A, bitrate: N/A Stream #0:0: Audio: pcm_s16le, 5512 Hz, mono, 88 kb/s Stream #0:1: Video: mjpeg, yuvj444p, 1024x768 [SAR 100:100 DAR 4:3], 16 fps, 16 tbr, 16 tbn File 'sample.mp4' already exists. Overwrite ? [y/N] y Invalid sample format '(null)' Error opening filters!

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  • PHP page load seems to be requesting itself and misinterpreting the result

    - by Regis Frey
    I'm working on a messy PHP page by another developer and I was analyzing the resource view in the Webkit developer tools and noticed that the page (index.php) makes an HTTP requests for itself and then interprets the results as an image despite it being sent with the text/html header. Because of this it throws the warning: Resource interpreted as image but transferred with MIME type text/html. Looking at the time graph the call comes after the <head> because it has already requested images for the body. Sometimes there are even two 'bad' requests. Can anyone explain what might be happening and/or suggest how to fix this? Could these be related to PHP includes?

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  • Launch Apple's Stocks app, with a particular stock selected

    - by Vincent Gable
    I would like to launch Apple's Stocks app to show information for a particular stock, on a non-jailbroken phone. I'm not interesting in how to get a quote or graph a stock myself, just opening Stocks.app. I was hoping that the Stocks app would have a custom URL format, so opening a URL like stocks://AAPL would do the trick. But I haven't found anything documenting such a scheme, and suspect it doesn't exist. Any other ideas, or is it impossible to integrate with the native Stocks app?

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  • Google Visualization legend format Jquery ui tabs

    - by Liam
    I've got an issue when using the Google Visualization api line chart with Jquery ui tabs. I've got two graphs on two tabs. The first graph, which is visible by default displays fine: the second chart on the hidden tab seems to be messing up the key: I've tried changing the options but nothing I do seems to make any difference. Here are my options: options = { 'title': title, titleTextStyle: { color: color, fontSize: 20 }, 'width': 950, 'height': 400, hAxis: { minorGridlines: { count: x } }, chartArea: { width: 880 }, legend: { position: 'bottom', textStyle: { fontSize: 10 } } }; // Instantiate and draw our chart, passing in some options. var chart = new google.visualization.LineChart(document.getElementById(divId)); chart.draw(data, options); $('#tabs').tabs(); any thoughts on what is causing this and how to prevent it?? Edit If I remove the tabs() call it displays correctly. As per answer below from @Vipul tried setting the div to a fixed width, no difference.

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  • enable profiler / Traceon after SQL server restart automatically

    - by Nikhil
    hi, My client is facing some deadlocks while using our application. I want to track all the deadlocks for my research and to solve the deadlocks. i am currently run the SQL profiler for the event deadlock graph to capture the deadlock scenario. the actual problem is that the SQL server gets restarted every day at 2 am, and the profiler stops capturing the events after the restart. by the time i come to office at start the profiler at say 10 am, there could be deadlocks which i could have missed between 2 am and 10 am. so i am looking for a way so i can capture the deadlocks without me starting manually. i thought i could use TRACEON(1204,-1) so that the deadlock events get captured in the SQL Server error logs. But i found that the TRACE capturing too gets disabled after the restart. Is there a way i can capture the deadlocks either by SQL profiler or by using TRACEON without me manually starting the capturing? Nikhil

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  • My google map android app keeps crashing

    - by Manny264
    I have followed about two tutorials from vogella and some other tutorial that looked similar...very similar but to no avail. I load the app on my nexus 7 and it just crashes "Unfortunately MyMapView has stopped working" on launch.This is the manifest: ` <uses-sdk android:minSdkVersion="17" android:targetSdkVersion="17" /> <uses-feature android:glEsVersion="0x00020000" android:required="true"/> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <uses-library android:name="com.google.android.maps" /> <activity android:name="com.macmozart.mymapview.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AIzaSyBZ1Bt7rjB863Jy-B05zls6k8XZsBGQ6-4" /> </application> ` Followed by my main layout: <fragment android:id="@+id/map" android:layout_width="match_parent" android:layout_height="match_parent" class="com.google.android.gms.maps.MapFragment" /> and finally my java class: package com.macmozart.mymapview; import android.app.Activity; import android.os.Bundle; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.MapFragment; import com.google.android.gms.maps.model.BitmapDescriptorFactory; import com.google.android.gms.maps.model.LatLng; import com.google.android.gms.maps.model.Marker; import com.google.android.gms.maps.model.MarkerOptions; import com.google.android.maps.*; public class MainActivity extends Activity { static final LatLng HAMBURG = new LatLng(53.558, 9.927); static final LatLng KIEL = new LatLng(53.551, 9.993); private GoogleMap map; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)) .getMap(); if (map != null) { Marker hamburg = map.addMarker(new MarkerOptions() .position(HAMBURG).title("Hamburg")); Marker kiel = map.addMarker(new MarkerOptions() .position(KIEL) .title("Kiel") .snippet("Kiel is cool") .icon(BitmapDescriptorFactory .fromResource(R.drawable.ic_launcher))); map.moveCamera(CameraUpdateFactory.newLatLngZoom(HAMBURG, 15)); // Zoom in, animating the camera. map.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null); } } } Any idea what im doing wrong I really need this to work

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  • Multiple outliers for two variable linear regression

    - by Dave Jarvis
    Problem Building on my previous question, the "extreme" outliers in the following graph are somewhat obvious: Question Given: T - Set of all temperatures Y - Set of all years ST - Sum of temperatures. SY - Sum of years. N - Number of elements T(n) - Temperature of the nth element in the temperature set How would you implement an efficient MySQL stored procedure or user-defined function (UDF) to determine if T(n) is an outlier? (If such an implementation already exists, that would be good to know as well.) Related Sites I am slowly working through these sites to get a better understanding of the problem: Multiple Outliers Detection Procedures in Linear Regression M-estimator Measure of Surprise for Outlier Detection Ordinary Least Squares Linear Regression Many thanks!

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  • Pyramind of DIVs

    - by sebastian
    Hi there, I'm trying to build a pyramid that's made of 4 DIVs. The layout looks like this: ------ | #1 | ------ ---------------- | #2 | #3 | #4 | ---------------- Moreover I need 3 additional DIVs starting at the center DIV (#3) and containing either #1, #2 or #3 additionally. These DIVs are used the build a sliding effect with jQueryUI later on. It's supposed to look like #1, #2 and #4 slide out of #3. The margin between the DIVs is supposed to be 2 pixels. I also want the whole block to be centered. Even with display: inline; and position: absolute; enabled on the visible and invisible DIVs I can't get the layout right. I used some negative margins and when it looked ok for the first time I saw that my top DIV was positioned outside of the html body. I suppose there is a more simple and elegant way to achieve what I want. Thanks in advance Sebastian Here's what I've got so far: HTML: <div id="centerbox"> <div id="main">main</div> <div id="rail_top"> <div id="top">top</div> </div> <div id="rail_left"> <div id="left">left</div> </div> <div id="rail_right"> <div id="right">right</div> </div> </div> CSS: #centerbox { height: 602px; width: 904px; margin-top: 640px; margin-left: auto; margin-right: auto; } /* blue */ #main { background-color: #33F; height: 300px; width: 300px; margin: 2px; z-index: 9999; position: absolute; display: inline; margin-left: 302px; } /* green */ #top { background-color: #3F0; height: 300px; width: 300px; z-index: 1; position: absolute; display: inline; } /* pink */ #left { background-color: #F06; height: 300px; width: 300px; z-index: 1; } /* orange */ #right { background-color: #FC0; height: 300px; width: 300px; z-index: 1; margin-left: 302px; } #rail_top { height: 602px; width: 300px; display: inline; position: absolute; margin-top: -300px; margin-left: 302px; } #rail_left { height: 300px; width: 602px; float: left; position: absolute; display: inline; margin-top: 2px; } #rail_right { height: 300px; width: 602px; float: right; position: absolute; display: inline; margin-left: 302px; margin-top: 2px; }

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  • Automate gdb: show backtrace every 10 ms.

    - by osgx
    Hello I want to write a script for gdb, which will save backtrace (stack) of process every 10 ms. How can I do this? It can be smth like call graph profiling for 'penniless' (for people, who can't use any sort of advanced profiler). Yes, there are a lot of advanced profilers. For popular CPUs and for popular OSes. Shark is very impressive and easy to use, but I want to get a basic functionality with such script, working with gdb.

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  • Help understanding how to make a bar chart using ggplot2

    - by celenius
    I'm trying to use the bar_geom function of ggplot2, but I can't understand how to use it. I've made a small sample of my code to show what I am trying to do: library(ggplot2) # sample data sampleData = data.frame( v1=c('a','b','c','d','e', 'f','g', 'h', 'i','j'), v2=c(1:10) ) sampleData$Names = data.frame( Names = paste(sampleData$v1, sampleData$v2, sep="") ) sampleData$Values = c(1:10) # make plot x = sampleData$Values y = sampleData$Names qplot( x, y, data = sampleData, geom="bar" ) I want sampleData$Names to be on the x-axis of my graph, labeling each bar and and sampleData$Values to scale the bar height. I want the y-axis to be specified as a range. I realize that I don't understand how ggplot2 functions as this small example does not work, yet my other example is generating a plot but I cannot specify a y-range as it considers the variables to be categorical.

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  • Howto format a date as localized Short MonthDay string

    - by Wouter
    I would like to format a DateTime to a string containing the month name abbreviated and the date for use in axislabels in a graph. The default DateTime format strings do not contain abbreviated month. I guess there is no standard but I could take a substring of the first 3 characters of the month name and replace this into the MonthDay format. The reason I would use MonthDay is that the ordering of month and date is locale dependent. Does anyone have a better idea? http://msdn.microsoft.com/en-us/library/az4se3k1.aspx#MonthDay

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  • Show MapView on PopupWindow

    - by Ali Nadi
    I want to show MapView on PopupWindow and get error when press-on Map. Please help! Liste.java MapView mapView; View view; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.liste); LayoutInflater mInflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); view = mInflater.inflate(R.layout.pop_up, (ViewGroup) findViewById(R.id.popup_element), false); mapView = (MapView) view.findViewById(R.id.mapview_popup); listView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View v, int position, long id) { initiatePopupWindow(earthQuakeList.get(position)); } }); } private void initiatePopupWindow(EqData data) { try { mapView.setBuiltInZoomControls(true); List<Overlay> mapOverlays = mapView.getOverlays(); Drawable marker = this.getResources().getDrawable(R.drawable.marker1); HaritaOverlay itemizedoverlay = new HaritaOverlay(marker, this); Coordination coord = data.getCoordination(); GeoPoint point = new GeoPoint( (int)coord.latitude, (int)coord.longitude); OverlayItem overlayitem = new OverlayItem(point, data.lokasyon, data.name); itemizedoverlay.addOverlay(overlayitem); mapOverlays.add(itemizedoverlay); Display display = getWindowManager().getDefaultDisplay(); pw = new PopupWindow(view, display.getWidth(), display.getHeight()/2, true); // display the popup in the center pw.showAtLocation(view, Gravity.CENTER, 0, display.getHeight()/2); } catch (Exception e) { e.printStackTrace(); } } pop_up.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:baselineAligned="false" android:orientation="vertical" android:weightSum="540" android:id="@+id/popup_element" > ... <LinearLayout android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="440" > <com.google.android.maps.MapView android:id="@+id/mapview_popup" android:layout_width="fill_parent" android:layout_height="fill_parent" android:apiKey="@string/ApiMapKey" android:clickable="true" /> </LinearLayout> Error 07-23 17:36:28.820: E/MapActivity(12413): Couldn't get connection factory client 07-23 17:36:37.760: E/AndroidRuntime(12413): FATAL EXCEPTION: main 07-23 17:36:37.760: E/AndroidRuntime(12413): android.view.WindowManager$BadTokenException: Unable to add window -- token android.view.ViewRoot$W@40590b70 is not valid; is your activity running? 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.ViewRoot.setView(ViewRoot.java:528) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.Window$LocalWindowManager.addView(Window.java:465) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.widget.ZoomButtonsController.setVisible(ZoomButtonsController.java:370) 07-23 17:36:37.760: E/AndroidRuntime(12413): at com.google.android.maps.MapView.displayZoomControls(MapView.java:1053) 07-23 17:36:37.760: E/AndroidRuntime(12413): at com.google.android.maps.MapView$1.onDown(MapView.java:341) 07-23 17:36:37.760: E/AndroidRuntime(12413): at com.google.android.maps.GestureDetector.onTouchEvent(GestureDetector.java:488) 07-23 17:36:37.760: E/AndroidRuntime(12413): at com.google.android.maps.MapView.onTouchEvent(MapView.java:683) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.View.dispatchTouchEvent(View.java:3901) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:903) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:869) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:869) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.ViewRoot.deliverPointerEvent(ViewRoot.java:2200) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.view.ViewRoot.handleMessage(ViewRoot.java:1884) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.os.Handler.dispatchMessage(Handler.java:99) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.os.Looper.loop(Looper.java:130) 07-23 17:36:37.760: E/AndroidRuntime(12413): at android.app.ActivityThread.main(ActivityThread.java:3835) 07-23 17:36:37.760: E/AndroidRuntime(12413): at java.lang.reflect.Method.invokeNative(Native Method) 07-23 17:36:37.760: E/AndroidRuntime(12413): at java.lang.reflect.Method.invoke(Method.java:507) 07-23 17:36:37.760: E/AndroidRuntime(12413): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847) 07-23 17:36:37.760: E/AndroidRuntime(12413): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605) 07-23 17:36:37.760: E/AndroidRuntime(12413): at dalvik.system.NativeStart.main(Native Method)

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  • How to detect code duplication during development ?

    - by David Dibben
    We have a fairly large code base, 400K LOC of C++, and code duplication is something of a problem. Are there any tools which can effectively detect duplicated blocks of code? Ideally this would be something that developers could use during development rather than just run occasionally to see where the problems are. It would also be nice if we could integrate such a tool with CruiseControl to give a report after each check in. I had a look at Duploc some time ago, it showed a nice graph but requires a smalltalk environment to use it, which makes running it automatically rather difficult. Free tools would be nice, but if there are some good commercial tools I would also be interested.

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  • Getting empty result within PHP when in browser I get the JSON exception

    - by Pentium10
    I have this code: $url="https://graph.facebook.com/me/friends?access_token=".$access_token."&fields=id,first_name,last_name&limit=10"; $content=file_get_contents($url); Whenever I use this on a non authenticated user I should get feedback of OAuthException, which doesn't show up in the PHP the $content is empty. While if I copy the URL to the browser I get the result and I see the exception. I want to detect if the user is logged in and the session data is valid. What might be wrong?

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  • Apple has bigger market capitalization than Microsoft

    - by Paja
    Should I worry that my Microsoft programming skills (C#, .NET, WinAPI) will be obsolete in a few years, because everybody will be using Mac OS X, iPhone OS or some other Apple-originated OS? According to reuters, Apple has now bigger market capitalization than Microsoft. I know there is probably huge speculative bubble around Apple's shares, but just look at this graph (taken from business insider): I also know Windows have currently 90% of the OS market share, so we (Win devs) should be OK for a few years, but who knows, maybe in 10 years, it will be just 40%, and 0% on mobile phone OS market. Personally, I'm not much worried, because I think Microsoft will fight hard for their desktop OS market share, but I'm interested in your opinions.

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  • Odd Tools and Techniques for System Administrators

    - by Joseph Kern
    There's been a lot of questions centering on Software Tools for System Administrators. But I would like to know about any odd physical tools or techniques that you've used; Something that you never expected to be useful, but ended up saving the day. I'll go first: A Camera Phone. An application server had a major power issue that borked the RAID. Many of the disks were offline. Before I took the plunge and forced disks back online, I took a picture of the RAID BIOS screen with my camera phone. Having the exact layout of the RAID stored safely in my pocket, I was able to reset the RAID, and reboot the server. What odd tools/techniques have you used?

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  • Worth it to move /var to physical disk vs logical?

    - by Tammer Ibrahim
    Brief question about partition layout. I use an SSD for /, /boot, /usr, & /home partitions. I'd like to move /var to a mechanical disk to minimize writes to the SSD. I'm mainly concerned about maximizing drive life rather than maximizing performance (although I obviously wouldn't want to cripple my server). My mechanical disks consist of two drives sharing LVM, and a third used for nightly rsync backups. I also have a bunch of old 2.5in hard disks lying around. My question is, should I simply create a new LVM volume '/var' on my primary data store, or would it be worth the increased energy consumption (in terms of maximizing the lifetime of the LVMed drives) to install a low volume 2.5in disk to use just for /var? On a more general level my question is about the trade offs of placing OS mounts on the same physical volumes as my data. Thanks for any help!

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