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  • is there a proper way to handle multiple errors/exceptions?

    - by toPeerOrNotToPeer
    in OO programming, is there some conceptual pattern, ideas, about handling multiple errors? for example, i have a method that performs some checks and should return an error message for each error found ['name is too short', 'name contains invalid unicode sequences', 'name is too long'] now, should i use an array of exceptions (not thrown exceptions)? or something like this is better: class MyExceptionList extends Exception{ public Void addException(Exception e){} public Array getExceptions(){} } any theory behind this argument will be appreciated! (this isn't a request about a specific programming language, but a pure theoretical one) thank you in advance

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  • New to CakePHP -> How To Add Columns To a MySQL Table?

    - by walden
    I had a website made for me a long time ago, and the programmer did it in CakePHP. I'm now editing his scripts. I added a couple columns to a table, and found that doing saveField() on the new column does not do anything. How do I make CakePHP recognize the new columns? I'd appreciate your help. I'm not too familiar with CakePHP, so please go easy on me =)

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  • To display an album art from media store in android

    - by user1834724
    I'm not able to display album art from media store while listing albums,I'm getting following error Bad request for field slot 0,-1. numRows = 32, numColumns = 7 01-02 02:48:16.789: D/AndroidRuntime(4963): Shutting down VM 01-02 02:48:16.789: W/dalvikvm(4963): threadid=1: thread exiting with uncaught exception (group=0x4001e578) 01-02 02:48:16.804: E/AndroidRuntime(4963): FATAL EXCEPTION: main 01-02 02:48:16.804: E/AndroidRuntime(4963): java.lang.IllegalStateException: get field slot from row 0 col -1 failed Can anyone kindly help with this issue,Thanks in advance public class AlbumbsListActivity extends Activity { private ListAdapter albumListAdapter; private HashMap<Integer, Integer> albumInfo; private HashMap<Integer, Integer> albumListInfo; private HashMap<Integer, String> albumListTitleInfo; private String audioMediaId; private static final String TAG = "AlbumsListActivity"; Boolean showAlbumList = false; Boolean AlbumListTitle = false; ImageView album_art ; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.albums_list_layout); Cursor cursor; ContentResolver cr = getApplicationContext().getContentResolver(); if (getIntent().hasExtra(Util.ALBUM_ID)) { int albumId = getIntent().getIntExtra(Util.ALBUM_ID, Util.MINUS_ONE); String[] projection = new String[] { Albums._ID, Albums.ALBUM, Albums.ARTIST, Albums.ALBUM_ART, Albums.NUMBER_OF_SONGS }; String selection = null; String[] selectionArgs = null; String sortOrder = Media.ALBUM + " ASC"; cursor = cr.query(Albums.EXTERNAL_CONTENT_URI, projection, selection, selectionArgs, sortOrder); /* final String[] ccols = new String[] { //MediaStore.Audio.Albums., MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ALBUM, MediaStore.Audio.Albums.ARTIST, MediaStore.Audio.Albums.ALBUM_ART, MediaStore.Audio.Albums.NUMBER_OF_SONGS }; cursor = cr.query(MediaStore.Audio.Albums.getContentUri( "external"), ccols, null, null, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);*/ showAlbumList = true; } else { String order = MediaStore.Audio.Albums.ALBUM + " ASC"; String where = MediaStore.Audio.Albums.ALBUM; cursor = managedQuery(Media.EXTERNAL_CONTENT_URI, DbUtil.projection, null, null, order); showAlbumList = false; } albumInfo = new HashMap<Integer, Integer>(); albumListInfo = new HashMap<Integer, Integer>(); ListView listView = (ListView) findViewById(R.id.mylist_album); listView.setFastScrollEnabled(true); listView.setOnItemLongClickListener(new ItemLongClickListener()); listView.setAdapter(new AlbumCursorAdapter(this, cursor, DbUtil.displayFields, DbUtil.displayViews,showAlbumList)); final Uri uri = MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI; final Cursor albumListCursor = cr.query(uri, DbUtil.Albumprojection, null, null, null); } private class AlbumCursorAdapter extends SimpleCursorAdapter implements SectionIndexer{ private final Context context; private final Cursor cursorValues; private Time musicTime; private Boolean isAlbumList; private MusicAlphabetIndexer mIndexer; private int mTitleIdx; public AlbumCursorAdapter(Context context, Cursor cursor, String[] from, int[] to,Boolean isAlbumList) { super(context, 0, cursor, from, to); this.context = context; this.cursorValues = cursor; //musicTime = new Time(); this.isAlbumList = isAlbumList; } String albumName=""; String artistName = ""; String numberofsongs = ""; long albumid; @Override public View getView(int position, View convertView, ViewGroup parent) { View rowView = convertView; if (rowView == null) { LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); rowView = inflater .inflate(R.layout.row_album_layout, parent, false); } this.cursorValues.moveToPosition(position); String title = ""; String artistName = ""; String albumName = ""; int count; long albumid = 0; String songDuration = ""; if (isAlbumList) { albumInfo.put( position, Integer.parseInt(this.cursorValues.getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Albums._ID)))); artistName = this.cursorValues .getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Albums.ARTIST)); albumName = this.cursorValues .getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Albums.ALBUM)); albumid=Integer.parseInt(this.cursorValues.getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Albums.ALBUM_ID))); } else { albumInfo.put(position, Integer.parseInt(this.cursorValues .getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Media._ID)))); artistName = this.cursorValues.getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Media.ARTIST)); albumName = this.cursorValues.getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Media.ALBUM)); albumid=Integer.parseInt(this.cursorValues.getString(this.cursorValues .getColumnIndex(MediaStore.Audio.Media.ALBUM_ID))); } //code for Alphabetical Indexer mTitleIdx = cursorValues.getColumnIndex(MediaStore.Audio.Media.ALBUM); mIndexer = new MusicAlphabetIndexer(cursorValues, mTitleIdx, getResources().getString(R.string.fast_scroll_alphabet)); //end TextView metaone = (TextView) rowView.findViewById(R.id.album_name); TextView metatwo = (TextView) rowView.findViewById(R.id.artist_name); ImageView metafour = (ImageView) rowView.findViewById(R.id.album_art); TextView metathree = (TextView) rowView .findViewById(R.id.songs_count); metaone.setText(albumName); metatwo.setText(artistName); (metafour)getAlbumArt(albumid); System.out.println("albumid----------"+albumid); metaThree.setText(DbUtil.makeTimeString(context, secs)); getAlbumArt(albumid); } TextView metaone = (TextView) rowView.findViewById(R.id.album_name); TextView metatwo = (TextView) rowView.findViewById(R.id.artist_name); album_art = (ImageView) rowView.findViewById(R.id.album_art); //TextView metathree = (TextView) rowView.findViewById(R.id.songs_count); metaone.setText(albumName); metatwo.setText(artistName); return rowView; } } String albumArtUri = ""; private void getAlbumArt(long albumid) { Uri uri=ContentUris.withAppendedId(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, albumid); System.out.println("hhhhhhhhhhh" + uri); Cursor cursor = getContentResolver().query( ContentUris.withAppendedId( MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, albumid), new String[] { MediaStore.Audio.AlbumColumns.ALBUM_ART }, null, null, null); if (cursor.moveToFirst()) { albumArtUri = cursor.getString(0); } System.out.println("kkkkkkkkkkkkkkkkkkk :" + albumArtUri); cursor.close(); if(albumArtUri != null){ Options opts = new Options(); opts.inJustDecodeBounds = true; Bitmap albumCoverBitmap = BitmapFactory.decodeFile(albumArtUri, opts); opts.inJustDecodeBounds = false; albumCoverBitmap = BitmapFactory.decodeFile(albumArtUri, opts); if(albumCoverBitmap != null) album_art.setImageBitmap(albumCoverBitmap); }else { // TODO: Options opts = new Options(); Bitmap albumCoverBitmap = BitmapFactory.decodeResource(getApplicationContext().getResources(), R.drawable.albumart_mp_unknown_list, opts); if(albumCoverBitmap != null) album_art.setImageBitmap(albumCoverBitmap); } } } }

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  • set include_path for embed files like .js and .css?

    - by John Isaacks
    OK so I now know there is a way to put all my php files in a single place and have them be able to be included without a filepath by setting an include_path like so: php_value include_path .:/pathToPHPFiles OK so now as long as my PHP files are in this directory I can include them from any subdirectory as if they were in the same directory. I am wondering if there is a trick like this for other file types like .css and .js so I can put them all in single location and embed them in a page without worring about the filepath?

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  • SVG Scaling Text to fit container

    - by Tom
    This is likely a very simple question, but how do I get text in SVG to stretch to fit its container? I don't care if it looks ugly from being stretched too long or high, but it needs to fits its container and be as big as possible. Thanks

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  • String literals C++?

    - by Bad Man
    I need to do the following C# code in C++ (if possible). I have to const a long string with lots of freaking quotes and other stuff in it. const String _literal = @"I can use "quotes" inside here";

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  • Full-time programmer or software development consultant?

    - by DV
    In your opinion and experience, what's best - working full-time and long-term for one company, or part-time short-term on many smaller projects or parts of projects? What do you think are the pros and cons of both? I heard that being a consultant is more profitable and one would pick up more experience. Does that beat an 8 hours by 5 days (thanks to Jon Limjap for correction :)) job of coding in a cubicle?

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  • Overriding a method...

    - by Godcode
    public class Testing extends JDialog { public MyClass myClass; public Testing() { } } given the above code, is it possible to override a method in myClass in Testing class? say myClass has a method named computeCode(), will it be possible for me to override it's implementations in Testing? sorry it's been a long time since I've coded.

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  • Do you recommend Enabling Code Analysis for C/C++ on Build?

    - by brickner
    I'm using Visual Studio 2010, and in my C++/CLI project there are two Code Analysis settings: Enable Code Analysis on Build Enable Code Analysis for C/C++ on Build My question is about the second setting. I've enabled it and it takes a long time to run and it doesn't find much. Do you recommend enabling this feature? Why?

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  • Automation of EAR packing

    - by glebreutov
    I need to automate packing of Java EE projects into EAR archive in Eclipse. The most easy way, I think, is using Ant script. But writing of Ant from start is routine and long task. Is there a way to generate Ant script based on my actions in eclipse (like macros in MS Office)? Or, maybe, exists easier way to do this? Thanks!

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  • Some Good Web Analytics Tools

    - by paulj3000
    Hi, I'm looking for a good analytics system which tracks what links a user has clicked on, how long he's stayed on the page, etc. Does anyone have any recommendations on programs to use? Not sure if Google Analytics does this Thanks

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  • Can a CSS class inherit one or more other classes?

    - by Joel Martinez
    I feel dumb for having been a web programmer for so long and not knowing the answer to this question, I actually hope it's possible and I just didn't know about rather than what I think is the answer (which is that it's not possible). My question is whether it is possible to make a CSS class that "inherits" from another CSS class (or more than one). For example, say we had: .something { display:inline } .else { background:red } What I'd like to do is something like this: .composite { .something; .else } where the ".composite" class would both display inline and have a red background

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  • how to use alert in php and js combined

    - by user295189
    have a need to alert through php, I have the code below. Problem is that it works as long as I dont use header redirect. But as soon as I use it..I loose alert. echo "I will do some functions here in php"; if($value == 1){ alert('ok working'); } header(location: 'someOtherpagethanthis.php');

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  • C# 'could not found' existing method

    - by shybovycha
    Greetings! I've been fooling around (a bit) with C# and its assemblies. And so i've found such an interesting feature as dynamic loading assemblies and invoking its class members. A bit of google and here i am, writing some kind of 'assembly explorer'. (i've used some portions of code from here, here and here and none of 'em gave any of expected results). But i've found a small bug: when i tried to invoke class method from assembly i've loaded, application raised MissingMethod exception. I'm sure DLL i'm loading contains class and method i'm tryin' to invoke (my app ensures me as well as RedGate's .NET Reflector): The main application code seems to be okay and i start thinking if i was wrong with my DLL... Ah, and i've put both of projects into one solution, but i don't think it may cause any troubles. And yes, DLL project has 'class library' target while the main application one has 'console applcation' target. So, the question is: what's wrong with 'em? Here are some source code: DLL source: using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ClassLibrary1 { public class Class1 { public void Main() { System.Console.WriteLine("Hello, World!"); } } } Main application source: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Reflection; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { Assembly asm = Assembly.LoadFrom(@"a\long\long\path\ClassLibrary1.dll"); try { foreach (Type t in asm.GetTypes()) { if (t.IsClass == true && t.FullName.EndsWith(".Class1")) { object obj = Activator.CreateInstance(t); object res = t.InvokeMember("Main", BindingFlags.Default | BindingFlags.InvokeMethod, null, obj, null); // Exception is risen from here } } } catch (Exception e) { System.Console.WriteLine("Error: {0}", e.Message); } System.Console.ReadKey(); } } } UPD: worked for one case - when DLL method takes no arguments: DLL class (also works if method is not static): public class Class1 { public static void Main() { System.Console.WriteLine("Hello, World!"); } } Method invoke code: object res = t.InvokeMember("Main", BindingFlags.Default | BindingFlags.InvokeMethod, null, null, null);

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  • Downloading a web page and all of its resource files in Python

    - by Mark
    I want to be able to download a page and all of its associated resources (images, style sheets, script files, etc) using Python. I am (somewhat) familiar with urllib2 and know how to download individual urls, but before I go and start hacking at BeautifulSoup + urllib2 I wanted to be sure that there wasn't already a Python equivalent to "wget --page-requisites http://www.google.com". Specifically I am interested in gathering statistical information about how long it takes to download an entire web page, including all resources. Thanks Mark

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  • How can I create an automatic svn tagging script?

    - by Eran Betzalel
    I want to create a simple script that tags the latest revision to the tags folder, for example: for Trunk directory head revision 114, it will create a tag of this directory to the Tags directory which goes by the name "r114". I don't really care of what scripting language it'll use (as long as it runs on windows). I tried creating such script using SVN CLI tool, but it failed connecting to a SSL repository. How can I achieve that?

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  • Why is there the need for browser resets?

    - by viatropos
    Okay that's probably not the best title, I know why we need browser resets: because browsers have different defaults set. My question that was too long to put into a title is: If everyone needs to use a reset stylesheet 90% of the time, why do browsers need to set default styles? We're just going to remove them anyways, right?

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  • .NET - alpha-numeric representation of numbers

    - by mack369
    I'm implementing serial key functionality in my application. User needs to enter at least 64bit number in order to register the application. Because typing number like 9,223,372,036,854,775,807 will take a while I want to compress it a bit. The first guess was to code this number hexadecimally but it still is quite long (0x7FFF FFFF FFFF FFFF). Is there any standard method in .NET to code this number alphanumerically using for example: digits, upper-case and lower-case characters?

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  • instantiate object with reflection using constructor arguments

    - by justin
    I'm trying to figure out how to instantiate a case class object with reflection. Is there any support for this? The closest I've come is looking at scala.reflect.Invocation, but this seems more for executing methods that are a part of an object. case class MyClass(id:Long, name:String) def instantiate[T](className:String)(args:Any*) : T = { //your code here } Is close to the API I'm looking for. Any help would be appreciated.

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