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  • fetch HTML Element object using javascript, mootools

    - by Avinash
    Hi, Please check my HTML below: <table cellpadding="0" cellpadding="0" border="0"> <tr> <td> <div class="toogler">Demo1</div> </td> </tr> <tr> <td> <div class="element">Demo1 Content</div> </td> </tr> <tr> <td> <div class="toogler">Demo1</div> </td> </tr> <tr> <td> <div class="element">Demo1 Content</div> </td> </tr> <tr> <td> <div class="toogler">Demo2</div> </td> </tr> <tr> <td> <div class="element">Demo2 Content</div> </td> </tr> <tr> <td> <div class="toogler">Demo3</div> </td> </tr> <tr> <td> <div class="element">Demo3 Content</div> </td> </tr> <tr> <td> <div class="toogler">Demo4</div> </td> </tr> <tr> <td> <div class="element">Demo4 Content</div> </td> </tr> </table> Here is my JS Code: <script type="text/javascript" language="javascript"> $$('.toogler').each(function(e){ alert(e); // this will alert all the toogler div object }); </script> my problem is that how can i fetch the object of the next div with class element if i have object of the first toogler then how can i get the object of the next first div which class 'element' I don't want to give the ids to the elements

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  • Need .Net method to compute a Google Pagerank request checksum.

    - by Steve K
    The company I work for is currently developing a SEO tool which needs to include a domain or url Pagerank. It is possible to retrieve such data directly from Google by sending a request to the url called by the Google ToolBar. On of the parameters send to that url is a checksum of the domain whose pagerank is being requested. I have found multiple .Net methods for calculating that check sum; however, every one randomly returns corrupt values every so often. I can only handle errors to a certain point before my final data set becomes useless. I know that there are countless tools out there, from browser plugins to desktop applications, that can process page rank, so it can't be impossible. My question, then, is two fold: 1) Any anyone heard of the problem I am having? (specifically in .Net) If so, how can it (or has it) be resolved? 2) Is there a better source for retrieving Pagerank data? Below is the Url and checksum code I have been using. "http://toolbarqueries.google.com/search?client=navclient-auto&ie=UTF-8&oe=UTF-8&features=Rank:&q=info:" & strUrl & "ch=" & strCheckSum where: strUrl = the url being queried strCheckSum = CheckHash(GetHash(url)) (see code below) Any help would be greatly appreciated. ''' <summary> ''' Returns a hash-string from the site's URL ''' </summary> ''' <param name="_SiteURL">full URL as indexed by Google</param> ''' <returns>HASH for site as a string</returns> Private Shared Function GetHash(ByVal _SiteURL As String) As String Try Dim _Check1 As Long = StrToNum(_SiteURL, 5381, 33) Dim _Check2 As Long = StrToNum(_SiteURL, 0, 65599) _Check1 >>= 2 _Check1 = ((_Check1 >> 4) And 67108800) Or (_Check1 And 63) _Check1 = ((_Check1 >> 4) And 4193280) Or (_Check1 And 1023) _Check1 = ((_Check1 >> 4) And 245760) Or (_Check1 And 16383) Dim T1 As Long = ((((_Check1 And 960) << 4) Or (_Check1 And 60)) << 2) Or (_Check2 And 3855) Dim T2 As Long = ((((_Check1 And 4294950912) << 4) Or (_Check1 And 15360)) << 10) Or (_Check2 And 252641280) Return Convert.ToString(T1 Or T2) Catch Return "0" End Try End Function ''' <summary> ''' Checks the HASH-string returned and adds check numbers as necessary ''' </summary> ''' <param name="_HashNum">generated HASH-string</param> ''' <returns>modified HASH-string</returns> Private Shared Function CheckHash(ByVal _HashNum As String) As String Try Dim _CheckByte As Long = 0 Dim _Flag As Long = 0 Dim _tempI As Long = Convert.ToInt64(_HashNum) If _tempI < 0 Then _tempI = _tempI * (-1) End If Dim _Hash As String = _tempI.ToString() Dim _Length As Integer = _Hash.Length For x As Integer = _Length - 1 To 0 Step -1 Dim _quick As Char = _Hash(x) Dim _Re As Long = Convert.ToInt64(_quick.ToString()) If 1 = (_Flag Mod 2) Then _Re += _Re _Re = CLng(((_Re \ 10) + (_Re Mod 10))) End If _CheckByte += _Re _Flag += 1 Next _CheckByte = _CheckByte Mod 10 If 0 <> _CheckByte Then _CheckByte = 10 - _CheckByte If 1 = (_Flag Mod 2) Then If 1 = (_CheckByte Mod 2) Then _CheckByte >>= 1 End If End If End If If _Hash.Length = 9 Then _CheckByte += 5 End If Return "7" + _CheckByte.ToString() + _Hash Catch Return "0" End Try End Function ''' <summary> ''' Converts the string (site URL) into numbers for the HASH ''' </summary> ''' <param name="_str">Site URL as passed by GetHash()</param> ''' <param name="_Chk">Necessary passed value</param> ''' <param name="_Magic">Necessary passed value</param> ''' <returns>Long Integer manipulation of string passed</returns> Private Shared Function StrToNum(ByVal _str As String, ByVal _Chk As Long, ByVal _Magic As Long) As Long Try Dim _Int64Unit As Long = Convert.ToInt64(Math.Pow(2, 32)) Dim _StrLen As Integer = _str.Length For x As Integer = 0 To _StrLen - 1 _Chk *= _Magic If _Chk >= _Int64Unit Then _Chk = (_Chk - (_Int64Unit * Convert.ToInt64(_Chk \ _Int64Unit))) _Chk = IIf((_Chk < -2147483648), (_Chk + _Int64Unit), _Chk) End If _Chk += CLng(Asc(_str(x))) Next Catch End Try Return _Chk End Function

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  • Why does this valid Tkinter code crash when mixed with a bit of PyWin32?

    - by Erlog
    So I'm making a very small program for personal use in tkinter, and I've run into a really strange wall. I'm mixing tkinter with the pywin32 bindings because I really hate everything to do with the syntax and naming conventions of pywin32, and it feels like tkinter gets more done with far less code. The strangeness is happening in the transition between the pywin32 clipboard watching and my program's reaction to it in tkinter. My window and all its controls are being handled in tkinter. The pywin32 bindings are doing clipboard watching and clipboard access when the clipboard changes. From what I've gathered about the way the clipboard watching pieces of pywin32 work, you can make it work with anything you want as long as you provide pywin32 with the hwnd value of your window. I'm doing that part, and it works when the program first starts. It just doesn't seem to work when the clipboard changes. When the program launches, it grabs the clipboard and puts it into the search box and edit box just fine. When the clipboard is modified, the event I want to fire off is firing off...except that event that totally worked before when the program launched is now causing a weird hang instead of doing what it's supposed to do. I can print the clipboard contents to stdout all I want if the clipboard changes, but not put that same data into a tkinter widget. It only hangs like that if it starts to interact with any of my tkinter widgets after being fired off by a clipboard change notification. It feels like there's some pywin32 etiquette I've missed in adapting the clipboard-watching sample code I was using over to my tkinter-using program. Tkinter apparently doesn't like to produce stack traces or error messages, and I can't really even begin to know what to look for trying to debug it with pdb. Here's the code: #coding: utf-8 #Clipboard watching cribbed from ## {{{ http://code.activestate.com/recipes/355593/ (r1) import pdb from Tkinter import * import win32clipboard import win32api import win32gui import win32con import win32clipboard def force_unicode(object, encoding="utf-8"): if isinstance(object, basestring) and not isinstance(object, unicode): object = unicode(object, encoding) return object class Application(Frame): def __init__(self, master=None): self.master = master Frame.__init__(self, master) self.pack() self.createWidgets() self.hwnd = self.winfo_id() self.nextWnd = None self.first = True self.oldWndProc = win32gui.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, self.MyWndProc) try: self.nextWnd = win32clipboard.SetClipboardViewer(self.hwnd) except win32api.error: if win32api.GetLastError () == 0: # information that there is no other window in chain pass else: raise self.update_search_box() self.word_search() def word_search(self): #pdb.set_trace() term = self.searchbox.get() self.resultsbox.insert(END, term) def update_search_box(self): clipboardtext = "" if win32clipboard.IsClipboardFormatAvailable(win32clipboard.CF_TEXT): win32clipboard.OpenClipboard() clipboardtext = win32clipboard.GetClipboardData() win32clipboard.CloseClipboard() if clipboardtext != "": self.searchbox.delete(0,END) clipboardtext = force_unicode(clipboardtext) self.searchbox.insert(0, clipboardtext) def createWidgets(self): self.button = Button(self) self.button["text"] = "Search" self.button["command"] = self.word_search self.searchbox = Entry(self) self.resultsbox = Text(self) #Pack everything down here for "easy" layout changes later self.searchbox.pack() self.button.pack() self.resultsbox.pack() def MyWndProc (self, hWnd, msg, wParam, lParam): if msg == win32con.WM_CHANGECBCHAIN: self.OnChangeCBChain(msg, wParam, lParam) elif msg == win32con.WM_DRAWCLIPBOARD: self.OnDrawClipboard(msg, wParam, lParam) # Restore the old WndProc. Notice the use of win32api # instead of win32gui here. This is to avoid an error due to # not passing a callable object. if msg == win32con.WM_DESTROY: if self.nextWnd: win32clipboard.ChangeClipboardChain (self.hwnd, self.nextWnd) else: win32clipboard.ChangeClipboardChain (self.hwnd, 0) win32api.SetWindowLong(self.hwnd, win32con.GWL_WNDPROC, self.oldWndProc) # Pass all messages (in this case, yours may be different) on # to the original WndProc return win32gui.CallWindowProc(self.oldWndProc, hWnd, msg, wParam, lParam) def OnChangeCBChain (self, msg, wParam, lParam): if self.nextWnd == wParam: # repair the chain self.nextWnd = lParam if self.nextWnd: # pass the message to the next window in chain win32api.SendMessage (self.nextWnd, msg, wParam, lParam) def OnDrawClipboard (self, msg, wParam, lParam): if self.first: self.first = False else: #print "changed" self.word_search() #self.word_search() if self.nextWnd: # pass the message to the next window in chain win32api.SendMessage(self.nextWnd, msg, wParam, lParam) if __name__ == "__main__": root = Tk() app = Application(master=root) app.mainloop() root.destroy()

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  • Scrolling a canvas as a shape you're moving approaches its edges

    - by Steven Sproat
    Hi, I develop a Python-based drawing program, Whyteboard. I have tools that the user can create new shapes on the canvas, such as text/images/rectangles/circles/polygons. I also have a Select tool that allows the users to modify these shapes - for example, moving a shape's position, resizing, or editing polygon's points' positions. I'm adding in a new feature where moving or resizing a point near the canvas edge will automatically scroll the canvas. I think it's a good idea in terms of program usability, and annoys me when other program's don't have this feature. I've made some good progress on coding this; below is some Python code to demonstrate what I'm doing. These functions demonstrate how some shapes calculate their "edges": def find_edges(self): """A line.""" self.edges = {EDGE_TOP: min(self.y, self.y2), EDGE_RIGHT: max(self.x, self.x2), EDGE_BOTTOM: max(self.y, self.y2), EDGE_LEFT: min(self. x, self.x2)} def find_edges(self): """An image""" self.edges = {EDGE_TOP: self.y, EDGE_RIGHT: self.x + self.image.GetWidth(), EDGE_BOTTOM: self.y + self.image.GetWidth(), EDGE_LEFT: self.x} def find_edges(self): """Get the bounding rectangle for the polygon""" xmin = min(x for x, y in self.points) ymin = min(y for x, y in self.points) xmax = max(x for x, y in self.points) ymax = max(y for x, y in self.points) self.edges = {EDGE_TOP: ymin, EDGE_RIGHT: xmax, EDGE_BOTTOM: ymax, EDGE_LEFT: xmin} And here's the code I have so far to implement the scrolling when a shape nears the edge: def check_canvas_scroll(self, x, y, moving=False): """ We check that the x/y coords are within 50px from the edge of the canvas and scroll the canvas accordingly. If the shape is being moved, we need to check specific edges of the shape (e.g. left/right side of rectangle) """ size = self.board.GetClientSizeTuple() # visible area of the canvas if not self.board.area > size: # canvas is too small to need to scroll return start = self.board.GetViewStart() # user's starting "viewport" scroll = (-1, -1) # -1 means no change if moving: if self.shape.edges[EDGE_RIGHT] > start[0] + size[0] - 50: scroll = (start[0] + 5, -1) if self.shape.edges[EDGE_BOTTOM] > start[1] + size[1] - 50: scroll = (-1, start[1] + 5) # snip others else: if x > start[0] + size[0] - 50: scroll = (start[0] + 5, -1) if y > start[1] + size[1] - 50: scroll = (-1, start[1] + 5) # snip others self.board.Scroll(*scroll) This code actually works pretty well. If we're moving a shape, then we need to know its edges to calculate when they're coming close to the canvas edge. If we're resizing just a single point, then we just use the x/y coords of that point to see if it's close to the edge. The problem I'm having is a little tricky to describe - basically, if you move a shape to the left, and stop moving it, if you positioned the shape within the 50px from the canvas, then the next time you go to move the shape, the code that says "ok, is this shape close to the end?" gets triggered, and the canvas scrolls to the left, even if you're moving the shape to the right. Can anyone think on how to stop this? I created a youtube video to demonstrate the issue. At about 0:54, I move a polygon to the left of the canvas and position it there. The next time I move it, the canvas scrolls to the left even though I'm moving it right Another thing I'd like to add, but I'm stuck on is the scroll gaining momentum the longer a shape is scrolling? So, with a large canvas, you're not moving a shape for ages, moving 5px at a time, when you need to cover a 2000px distance. Any suggestions there? Thanks all - sorry for the super long question!

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  • Coldfusion "Routines cannot be declared more than once"

    - by Nicholas
    We have the following code in our Application.cfc: <cffunction name="onError" returnType="void" output="false"> <cfargument name="exception" required="true"> <cfargument name="eventname" type="string" required="true"> <cfset cfcatch = exception> <cfinclude template="standalone/errors/error.cfm"> </cffunction> Within the error.cfm page we have this code (I didn't write it): <cfscript> function GetCurrentURL() { var theURL = "http"; if (cgi.https EQ "on" ) theURL = "#TheURL#s"; theURL = theURL & "://#cgi.server_name#"; if(cgi.server_port neq 80) theURL = theURL & ":#cgi.server_port#"; theURL = theURL & "#cgi.path_info#"; if(len(cgi.query_string)) theURL = theURL & "?#cgi.query_string#"; return theURL; } </cfscript> This is all part of a script that puts together bunches of details about the error and records it to the database. When an error occurs, we receive the message "The routine GetCurrentURL has been declared twice in different templates." However, I have searched the entire codebase in several different ways and found "GetCurrentURL" used only twice, both times in error.cfm. The first time is the declaration, and the second is actual use. So I'm not sure why CF is saying "in different templates". My next thought was that the problem is a recursive call, and that error.cfm is erroring and calling itself, so I attempted these two changes, either of which should have resolved the issue and unmasked the real error: <cfif StructKeyExists(variables,"GetCurrentURL") IS "NO"> <cfscript> function GetCurrentURL() { var theURL = "http"; if (cgi.https EQ "on" ) theURL = "#TheURL#s"; theURL = theURL & "://#cgi.server_name#"; if(cgi.server_port neq 80) theURL = theURL & ":#cgi.server_port#"; theURL = theURL & "#cgi.path_info#"; if(len(cgi.query_string)) theURL = theURL & "?#cgi.query_string#"; return theURL; } </cfscript> </cfif> And: <cfscript> if (!StructKeyExists(variables,"GetCurrentURL")) { function GetCurrentURL() { var theURL = "http"; if (cgi.https EQ "on" ) theURL = "#TheURL#s"; theURL = theURL & "://#cgi.server_name#"; if(cgi.server_port neq 80) theURL = theURL & ":#cgi.server_port#"; theURL = theURL & "#cgi.path_info#"; if(len(cgi.query_string)) theURL = theURL & "?#cgi.query_string#"; return theURL; } } </cfscript> Neither worked. I also tried adding this to the page just before the function call: <cfoutput>"#StructKeyExists(variables,"GetCurrentURL")#"</cfoutput> It caused the word "YES" to be printed on screen. This indicates that the above should work, as clearly the contents of the if statement will evaluate to "YES", and thus the if statement will evaluate to false, and thus the function will not be declared, and thus I will retain my sanity. But for some reason this problem persists. Any thoughts on what might be occuring or how to troubleshoot next? I'm stuck at this point.

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  • Random Complete System Unresponsiveness Running Mathematical Functions

    - by Computer Guru
    I have a program that loads a file (anywhere from 10MB to 5GB) a chunk at a time (ReadFile), and for each chunk performs a set of mathematical operations (basically calculates the hash). After calculating the hash, it stores info about the chunk in an STL map (basically <chunkID, hash>) and then writes the chunk itself to another file (WriteFile). That's all it does. This program will cause certain PCs to choke and die. The mouse begins to stutter, the task manager takes 2 min to show, ctrl+alt+del is unresponsive, running programs are slow.... the works. I've done literally everything I can think of to optimize the program, and have triple-checked all objects. What I've done: Tried different (less intensive) hashing algorithms. Switched all allocations to nedmalloc instead of the default new operator Switched from stl::map to unordered_set, found the performance to still be abysmal, so I switched again to Google's dense_hash_map. Converted all objects to store pointers to objects instead of the objects themselves. Caching all Read and Write operations. Instead of reading a 16k chunk of the file and performing the math on it, I read 4MB into a buffer and read 16k chunks from there instead. Same for all write operations - they are coalesced into 4MB blocks before being written to disk. Run extensive profiling with Visual Studio 2010, AMD Code Analyst, and perfmon. Set the thread priority to THREAD_MODE_BACKGROUND_BEGIN Set the thread priority to THREAD_PRIORITY_IDLE Added a Sleep(100) call after every loop. Even after all this, the application still results in a system-wide hang on certain machines under certain circumstances. Perfmon and Process Explorer show minimal CPU usage (with the sleep), no constant reads/writes from disk, few hard pagefaults (and only ~30k pagefaults in the lifetime of the application on a 5GB input file), little virtual memory (never more than 150MB), no leaked handles, no memory leaks. The machines I've tested it on run Windows XP - Windows 7, x86 and x64 versions included. None have less than 2GB RAM, though the problem is always exacerbated under lower memory conditions. I'm at a loss as to what to do next. I don't know what's causing it - I'm torn between CPU or Memory as the culprit. CPU because without the sleep and under different thread priorities the system performances changes noticeably. Memory because there's a huge difference in how often the issue occurs when using unordered_set vs Google's dense_hash_map. What's really weird? Obviously, the NT kernel design is supposed to prevent this sort of behavior from ever occurring (a user-mode application driving the system to this sort of extreme poor performance!?)..... but when I compile the code and run it on OS X or Linux (it's fairly standard C++ throughout) it performs excellently even on poor machines with little RAM and weaker CPUs. What am I supposed to do next? How do I know what the hell it is that Windows is doing behind the scenes that's killing system performance, when all the indicators are that the application itself isn't doing anything extreme? Any advice would be most welcome.

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  • Add objects to Arraylist inside loop and get a list of them outside loops

    - by AgusDG
    Im already done with a method to do a shot on a board (bidimensional array). THe shot goes from the bottom to the top, and depending of the direction, it do bounces on the walls to get to the top. The thing is that I did the method to represent the trayectory with an 'x'. Now, I want to add the coordinates x and y of each position of the shot (b [x][y]) to and Arraylist of Objects Position. public Position(int row,int col) { this.row = row; this.col = col; } The thing is that the method uses a for loop and inside if loops, and I'll need to create the objects inside, and get them outside. I did that : public static ArrayList<Position> showTrayectory (char [][] b , int shotDirection, char bubble){ int row = 0, col = 0; ArrayList<Position> aListPos = new ArrayList<Position>(); Position positionsOfShot = new Position(row,col); START = ((RIGHT_WALL)/2) + shotDirection; boolean shotRight = false; if(shotDirection < 0) shotRight = false; else if(shotDirection > 0) shotRight = true; for(int y = BOTTOM,x = START ;y >= 0;y--) { if(!isOut(y,x) && !emptyCell(y,x)) break; if(x <= LEFT_WALL) shotRight = true; if(x >= RIGHT_WALL) shotRight = false; if(!isOut(y,x) && shotRight == true) { positionsOfShot = new Position(y,x); aListPos.add(positionsOfShot); b[y][x] = SHOT; ++x; } if(!isOut(y,x) && shotRight == false){ positionsOfShot = new Position(y,x); aListPos.add(positionsOfShot); b[y][x] = SHOT; --x; } } // The nested for loops below are for showing the positions // But I dont need it that way // I must get the trayectory from an ArrayList and print it from there for(int y=0;y < b.length;y++){ System.out.println(); for(int x=0;x < b[y].length;x++){ System.out.print(" "+b [y][x]+" "); } } System.out.println("\nTrayectory of the shot ["+shotDirection+"]"); System.out.println("Next bubble ["+bubble+"]"); for( Position ii : aListPos){ System.out.println("(" + positionsOfShot.getFila() + "," + positionsOfShot.getColumna()+")"); } return aListPos; } The sentence " b[y][x] = SHOT; " is still there, to see the proper trayectory of the shot (its not needed that way), but what I need, is getting the trayectory in an ArrayList, and print the trayectory from there. All that I get is a wrong position, and repeated during the number of positions the shot goes through. I need some help. I suppose the problem is that Im creating and adding Position Objects inside an ArrayList inside loops, but in a wrong way. I will need you to explain me how to do it properly ; ) Thanks in advance. I'll add the output for you see better what is that above haha *************************** y b y b g r b g o y g a a r y o y y r b y g r r o b o y y g b a r y r o a y y o o r r g r - - - x - - - - - - - - - x - - - - - - - - - x - - - - - - - - - x - - - - - - - - - x - - - - - - - - - x - - - - - - - x - - - - - - - x - - - - - - - x - - - Trayectory of the shot [1] Next bubble [y] (5,3) (5,3) (5,3) (5,3) (5,3) (5,3) (5,3) (5,3) (5,3) Action?

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  • Perl: Deleting multiple re-occuring lines where a certain criteria is met

    - by george-lule
    Dear all, I have data that looks like below, the actual file is thousands of lines long. Event_time Cease_time Object_of_reference -------------------------- -------------------------- ---------------------------------------------------------------------------------- Apr 5 2010 5:54PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=LUGALAMBO_900 Apr 5 2010 5:55PM Apr 5 2010 6:43PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=LUGALAMBO_900 Apr 5 2010 5:58PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 5:58PM Apr 5 2010 6:01PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:01PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:03PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=KAPKWAI_900 Apr 5 2010 6:03PM Apr 5 2010 6:04PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=KAPKWAI_900 Apr 5 2010 6:04PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=KAPKWAI_900 Apr 5 2010 6:03PM Apr 5 2010 6:03PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:03PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:03PM Apr 5 2010 7:01PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA As you can see, each file has a header which describes what the various fields stand for(event start time, event cease time, affected element). The header is followed by a number of dashes. My issue is that, in the data, you see a number of entries where the cease time is NULL i.e event is still active. All such entries must go i.e for each element where the alarm cease time is NULL, the start time, the cease time(in this case NULL) and the actual element must be deleted from the file. In the remaining data, all the text starting from word SubNetwork upto BtsSiteMgr= must also go. Along with the headers and the dashes. Final output should look like below: Apr 5 2010 5:55PM Apr 5 2010 6:43PM LUGALAMBO_900 Apr 5 2010 5:58PM Apr 5 2010 6:01PM BULAGA Apr 5 2010 6:03PM Apr 5 2010 6:04PM KAPKWAI_900 Apr 5 2010 6:03PM Apr 5 2010 6:03PM BULAGA Apr 5 2010 6:03PM Apr 5 2010 7:01PM BULAGA Below is a Perl script that I have written. It has taken care of the headers, the dashes, the NULL entries but I have failed to delete the lines following the NULL entries so as to produce the above output. #!/usr/bin/perl use strict; use warnings; $^I=".bak" #Backup the file before messing it up. open (DATAIN,"<george_perl.txt")|| die("can't open datafile: $!"); # Read in the data open (DATAOUT,">gen_results.txt")|| die("can't open datafile: $!"); #Prepare for the writing while (<DATAIN>) { s/Event_time//g; s/Cease_time//g; s/Object_of_reference//g; s/\-//g; #Preceding 4 statements are for cleaning out the headers my $theline=$_; if ($theline =~ /NULL/){ next; next if $theline =~ /SubN/; } else{ print DATAOUT $theline; } } close DATAIN; close DATAOUT; Kindly help point out any modifications I need to make on the script to make it produce the necessary output. Will be very glad for your help Kind regards George.

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  • parallel computation for an Iterator of elements in Java

    - by Brian Harris
    I've had the same need a few times now and wanted to get other thoughts on the right way to structure a solution. The need is to perform some operation on many elements on many threads without needing to have all elements in memory at once, just the ones under computation. As in, Iterables.partition is insufficient because it brings all elements into memory up front. Expressing it in code, I want to write a BulkCalc2 that does the same thing as BulkCalc1, just in parallel. Below is sample code that illustrates my best attempt. I'm not satisfied because it's big and ugly, but it does seem to accomplish my goals of keeping threads highly utilized until the work is done, propagating any exceptions during computation, and not having more than numThreads instances of BigThing necessarily in memory at once. I'll accept the answer which meets the stated goals in the most concise way, whether it's a way to improve my BulkCalc2 or a completely different solution. interface BigThing { int getId(); String getString(); } class Calc { // somewhat expensive computation double calc(BigThing bigThing) { Random r = new Random(bigThing.getString().hashCode()); double d = 0; for (int i = 0; i < 100000; i++) { d += r.nextDouble(); } return d; } } class BulkCalc1 { final Calc calc; public BulkCalc1(Calc calc) { this.calc = calc; } public TreeMap<Integer, Double> calc(Iterator<BigThing> in) { TreeMap<Integer, Double> results = Maps.newTreeMap(); while (in.hasNext()) { BigThing o = in.next(); results.put(o.getId(), calc.calc(o)); } return results; } } class SafeIterator<T> { final Iterator<T> in; SafeIterator(Iterator<T> in) { this.in = in; } synchronized T nextOrNull() { if (in.hasNext()) { return in.next(); } return null; } } class BulkCalc2 { final Calc calc; final int numThreads; public BulkCalc2(Calc calc, int numThreads) { this.calc = calc; this.numThreads = numThreads; } public TreeMap<Integer, Double> calc(Iterator<BigThing> in) { ExecutorService e = Executors.newFixedThreadPool(numThreads); List<Future<?>> futures = Lists.newLinkedList(); final Map<Integer, Double> results = new MapMaker().concurrencyLevel(numThreads).makeMap(); final SafeIterator<BigThing> it = new SafeIterator<BigThing>(in); for (int i = 0; i < numThreads; i++) { futures.add(e.submit(new Runnable() { @Override public void run() { while (true) { BigThing o = it.nextOrNull(); if (o == null) { return; } results.put(o.getId(), calc.calc(o)); } } })); } e.shutdown(); for (Future<?> future : futures) { try { future.get(); } catch (InterruptedException ex) { // swallowing is OK } catch (ExecutionException ex) { throw Throwables.propagate(ex.getCause()); } } return new TreeMap<Integer, Double>(results); } }

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  • Strange issues with view switcher after object animator animations

    - by Barry Irvine
    I have two LinearLayout views that contain a number of edit texts and checkboxes for entering user information (name, email address etc). When a validation fails on one of these fields a gone textview is displayed showing the validation error. I have enclosed the two layouts within a ViewSwitcher and I animate between the two views using the ObjectAnimator class. (Since the code needs to support older versions of Android I am actually using the nineoldandroids backwards compatibility library for this). The bulk of the work is performed in my switchToChild method. If I flip the views more than twice then I start to run into strange errors. Firstly although the correct child view of the view animator is displayed it seems that the other view has focus and I can click on the views beneath the current one. I resolved this issue by adding a viewSwitcher.bringChildToFront at the end of the first animation. When I do this however and perform a validation on the 2nd view the "gone" view that I have now set to visible is not displayed (as if the linearlayout is never being re-measured). Here is a subset of the XML file: <ScrollView android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@+id/TitleBar" android:scrollbarAlwaysDrawVerticalTrack="true" android:scrollbarStyle="outsideOverlay" android:scrollbars="vertical" > <ViewSwitcher android:id="@+id/switcher" android:layout_width="fill_parent" android:layout_height="wrap_content" > <LinearLayout android:id="@+id/page_1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <!-- Lots of subviews here --> <LinearLayout android:id="@+id/page_2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > And this is the main method for flipping between the views: private void switchToChild(final int child) { final ViewSwitcher viewSwitcher = (ViewSwitcher) findViewById(R.id.switcher); if (viewSwitcher.getDisplayedChild() != child) { final Interpolator accelerator = new AccelerateInterpolator(); final Interpolator decelerator = new DecelerateInterpolator(); final View visibleView; final View invisibleView; switch (child) { case 0: visibleView = findViewById(R.id.page_2); invisibleView = findViewById(R.id.page_1); findViewById(R.id.next).setVisibility(View.VISIBLE); findViewById(R.id.back).setVisibility(View.GONE); break; case 1: default: visibleView = findViewById(R.id.page_1); invisibleView = findViewById(R.id.page_2); findViewById(R.id.back).setVisibility(View.VISIBLE); findViewById(R.id.next).setVisibility(View.GONE); break; } final ObjectAnimator visToInvis = ObjectAnimator.ofFloat(visibleView, "rotationY", 0f, 90f).setDuration(250); visToInvis.setInterpolator(accelerator); final ObjectAnimator invisToVis = ObjectAnimator.ofFloat(invisibleView, "rotationY", -90f, 0f).setDuration(250); invisToVis.setInterpolator(decelerator); visToInvis.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator anim) { viewSwitcher.showNext(); invisToVis.start(); viewSwitcher.bringChildToFront(invisibleView); // If I don't do this the old view can have focus } }); visToInvis.start(); } } Does anyone have any ideas? This is really confusing me!

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  • Slider Position

    - by RobinHood
    I had used this code for to create a slider. It's working fine. I want to place the slider next to my label control. Like this (Slidder : Slidder Bar) How to do that? <div> <tr> <td class="aln-rht"> <asp:Label ID="Literal4" runat="server" Text="Slidder :" Font-Bold="true" /> </td> <td> <%=Html.DropDownList("Scale", null, "--Select Scale--", new { id = "speed1" , Style = "display:none"})%> </td> </tr> </div> <script type="text/javascript"> $(function () { var abc = $('select#speed1').selectToUISlider().next(); fixToolTipColor(); }); function fixToolTipColor() { $('.ui-tooltip-pointer-down-inner').each(function () { var bWidth = $('.ui-tooltip-pointer-down-inner').css('borderTopWidth'); var bColor = $(this).parents('.ui-slider-tooltip').css('backgroundColor') $(this).css('border-top', bWidth + ' Solid ' + bColor); }); } </script> The ui.slider.extras.css, selectToUISlider.JQuery.js and ui.slider.js files I had used This is JQuery-ui-1.7.1.custom.css, which i am using... .ui-slider { position: relative; text-align: left; } .ui-slider .ui-slider-handle { position: absolute; z-index: 2; width: 1.2em; height: 1.2em; cursor: default; border-color: Maroon; background-color: Olive} .ui-slider .ui-slider-range { position: absolute; z-index: 1; font-size: .7em; display: block; border: 0; } .ui-slider-horizontal { height: .8em; border-color: Olive;} .ui-slider-horizontal .ui-slider-handle { top: -.3em; margin-left: -.6em; } .ui-slider-horizontal .ui-slider-range { top: 0; height: 100%; } .ui-slider-horizontal .ui-slider-range-min { left: 0; } .ui-slider-horizontal .ui-slider-range-max { right: 0; } .ui-slider-vertical { width: .8em; height: 100px; border-color: Olive; } .ui-slider-vertical .ui-slider-handle { left: -.3em; margin-left: 0; margin-bottom: -.6em; } .ui-slider-vertical .ui-slider-range { left: 0; width: 100%; } .ui-slider-vertical .ui-slider-range-min { bottom: 0; } .ui-slider-vertical .ui-slider-range-max { top: 0; }/* Tabs

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  • OutOfMemoryError during the pdf merge

    - by Vijay
    the below code merges the pdf files and returns the combined pdf data. while this code runs, i try to combine the 100 files with each file approximately around 500kb, i get outofmemory error in the line document.close();. this code runs in the web environment, is the memory available to webspehere server is the problem? i read in an article to use freeReader method, but i cannot get how to use it my scenario. protected ByteArrayOutputStream joinPDFs(List<InputStream> pdfStreams, boolean paginate) { Document document = new Document(); ByteArrayOutputStream mergedPdfStream = new ByteArrayOutputStream(); try { //List<InputStream> pdfs = pdfStreams; List<PdfReader> readers = new ArrayList<PdfReader>(); int totalPages = 0; //Iterator<InputStream> iteratorPDFs = pdfs.iterator(); Iterator<InputStream> iteratorPDFs = pdfStreams.iterator(); // Create Readers for the pdfs. while (iteratorPDFs.hasNext()) { InputStream pdf = iteratorPDFs.next(); if (pdf == null) continue; PdfReader pdfReader = new PdfReader(pdf); readers.add(pdfReader); totalPages += pdfReader.getNumberOfPages(); } //clear this pdfStreams = null; //WeakReference ref = new WeakReference(pdfs); //ref.clear(); // Create a writer for the outputstream PdfWriter writer = PdfWriter.getInstance(document, mergedPdfStream); writer.setFullCompression(); document.open(); BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED); PdfContentByte cb = writer.getDirectContent(); // Holds the PDF // data PdfImportedPage page; int currentPageNumber = 0; int pageOfCurrentReaderPDF = 0; Iterator<PdfReader> iteratorPDFReader = readers.iterator(); // Loop through the PDF files and add to the output. while (iteratorPDFReader.hasNext()) { PdfReader pdfReader = iteratorPDFReader.next(); // Create a new page in the target for each source page. while (pageOfCurrentReaderPDF < pdfReader.getNumberOfPages()) { pageOfCurrentReaderPDF++; document.setPageSize(pdfReader .getPageSizeWithRotation(pageOfCurrentReaderPDF)); document.newPage(); // pageOfCurrentReaderPDF++; currentPageNumber++; page = writer.getImportedPage(pdfReader, pageOfCurrentReaderPDF); cb.addTemplate(page, 0, 0); // Code for pagination. if (paginate) { cb.beginText(); cb.setFontAndSize(bf, 9); cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "" + currentPageNumber + " of " + totalPages, 520, 5, 0); cb.endText(); } } pageOfCurrentReaderPDF = 0; System.out.println("now the size is: "+pdfReader.getFileLength()); } mergedPdfStream.flush(); document.close(); mergedPdfStream.close(); return mergedPdfStream; } catch (Exception e) { e.printStackTrace(); } finally { if (document.isOpen()) document.close(); try { if (mergedPdfStream != null) mergedPdfStream.close(); } catch (IOException ioe) { ioe.printStackTrace(); } } return mergedPdfStream; } Thanks V

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  • MySQL access classes in PHP

    - by Mike
    I have a connection class for MySQL that looks like this: class MySQLConnect { private $connection; private static $instances = 0; function __construct() { if(MySQLConnect::$instances == 0) { //Connect to MySQL server $this->connection = mysql_connect(MySQLConfig::HOST, MySQLConfig::USER, MySQLConfig::PASS) or die("Error: Unable to connect to the MySQL Server."); MySQLConnect::$instances = 1; } else { $msg = "Close the existing instance of the MySQLConnector class."; die($msg); } } public function singleQuery($query, $databasename) { mysql_select_db(MySQLConfig::DB, $this->connection) or die("Error: Could not select database " . MySQLConfig::DB . " from the server."); $result = mysql_query($query) or die('Query failed.'); return $result; } public function createResultSet($query, $databasename) { $rs = new MySQLResultSet($query, MySQLConfig::DB, $this->connection ) ; return $rs; } public function close() { MySQLConnect::$instances = 0; if(isset($this->connection) ) { mysql_close($this->connection) ; unset($this->connection) ; } } public function __destruct() { $this->close(); } } The MySQLResultSet class looks like this: class MySQLResultSet implements Iterator { private $query; private $databasename; private $connection; private $result; private $currentRow; private $key = 0; private $valid; public function __construct($query, $databasename, $connection) { $this->query = $query; //Select the database $selectedDatabase = mysql_select_db($databasename, $connection) or die("Error: Could not select database " . $this->dbname . " from the server."); $this->result = mysql_query($this->query) or die('Query failed.'); $this->rewind(); } public function getResult() { return $this->result; } // public function getRow() // { // return mysql_fetch_row($this->result); // } public function getNumberRows() { return mysql_num_rows($this->result); } //current() returns the current row public function current() { return $this->currentRow; } //key() returns the current index public function key() { return $this->key; } //next() moves forward one index public function next() { if($this->currentRow = mysql_fetch_array($this->result) ) { $this->valid = true; $this->key++; }else{ $this->valid = false; } } //rewind() moves to the starting index public function rewind() { $this->key = 0; if(mysql_num_rows($this->result) > 0) { if(mysql_data_seek($this->result, 0) ) { $this->valid = true; $this->key = 0; $this->currentRow = mysql_fetch_array($this->result); } } else { $this->valid = false; } } //valid returns 1 if the current position is a valid array index //and 0 if it is not valid public function valid() { return $this->valid; } } The following class is an example of how I am accessing the database: class ImageCount { public function getCount() { $mysqlConnector = new MySQLConnect(); $query = "SELECT * FROM images;"; $resultSet = $mysqlConnector->createResultSet($query, MySQLConfig::DB); $mysqlConnector->close(); return $resultSet->getNumberRows(); } } I use the ImageCount class like this: if(!ImageCount::getCount()) { //Do something } Question: Is this an okay way to access the database? Could anybody recommend an alternative method if it is bad? Thank-you.

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  • How to replace slide effect to fade out/fade in effect on this slideshow?

    - by LDam
    Hi guys! I need replace slide effect to fade-out/fade-in effect on the prev and next slide functions: function animate(dir,clicked){ u = true; switch(dir){ case 'next': t = t+1; m = (-(t*w-w)); current(t); if(o.autoHeight){autoHeight(t);} if(s<3){ if (t===3){$(o.slides,obj).children(':eq(0)').css({left:(s*w)});} if (t===2){$(o.slides,obj).children(':eq('+(s-1)+')').css({position:'absolute',left:(w)});} } $(o.slides,obj).animate({left: m}, o.slidespeed,function(){ if (t===s+1) { t = 1; $(o.slides,obj).css({left:0},function(){$(o.slides,obj).animate({left:m})}); $(o.slides,obj).children(':eq(0)').css({left: 0}); $(o.slides,obj).children(':eq('+(s-1)+')').css({ position:'absolute',left:-w}); } if (t===s) $(o.slides,obj).children(':eq(0)').css({left:(s*w)}); if (t===s-1) $(o.slides,obj).children(':eq('+(s-1)+')').css({left:s*w-w}); u = false; }); break; case 'prev': t = t-1; m = (-(t*w-w)); current(t); if(o.autoHeight){autoHeight(t);} if (s<3){ if(t===0){$(o.slides,obj).children(':eq('+(s-1)+')').css({position:'absolute',left:(-w)});} if(t===1){$(o.slides,obj).children(':eq(0)').css({position:'absolute',left:0});} } $(o.slides,obj).animate({left: m}, o.slidespeed,function(){ if (t===0) { t = s; $(o.slides,obj).children(':eq('+(s-1)+')').css({position:'absolute',left:(s*w-w)}); $(o.slides,obj).css({left: -(s*w-w)}); $(o.slides,obj).children(':eq(0)').css({left:(s*w)}); } if (t===2 ) $(o.slides,obj).children(':eq(0)').css({position:'absolute',left:0}); if (t===1) $(o.slides,obj).children(':eq('+ (s-1) +')').css({position:'absolute',left:-w}); u = false; }); break; case 'fade': t = [t]*1; m = (-(t*w-w)); current(t); if(o.autoHeight){autoHeight(t);} $(o.slides,obj).children().fadeOut(o.fadespeed, function(){ $(o.slides,obj).css({left: m}); $(o.slides,obj).children(':eq('+(s-1)+')').css({left:s*w-w}); $(o.slides,obj).children(':eq(0)').css({left:0}); if(t===s){$(o.slides,obj).children(':eq(0)').css({left:(s*w)});} if(t===1){$(o.slides,obj).children(':eq('+(s-1)+')').css({ position:'absolute',left:-w});} $(o.slides,obj).children().fadeIn(o.fadespeed); u = false; }); break; default: break; } }; I had tried, but the auto restart didn't work! You can view the documentation and download the complete code with the examples in this link: http://github.com/nathansearles/loopedSlider/tree/master Please help me! (Sorry for my bad english!)

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  • Array not showing in Jlist but filled in console

    - by OVERTONE
    Hey there. been a busy debugger today. ill give ths short version. ive made an array list that takes names from a database. then i put the contents of the arraylist into an array of strings. now i want too display the arrays contents in a JList. the weird thing is it was working earlier. and ive two methods. ones just a little practice too make sure i was adding to the Jlist correctly. so heres the key codes. this is the layout of my code. variables constructor methods in my variables i have these 3 defined String[] contactListNames = new String[5]; ArrayList<String> rowNames = new ArrayList<String>(); JList contactList = new JList(contactListNames); simple enough. in my constructor i have them again. contactListNames = new String[5]; contactList = new JList(contactListNames); //i dont have the array list defined though. printSqlDetails(); // the prinSqldetails was too make sure that the connectionw as alright. and its working fine. fillContactList(); // this is the one thats causing me grief. its where all the work happens. // fillContactListTest(); // this was the tester that makes sure its adding to the list alright. heres the code for fillContactListTest() public void fillContactListTest() { for(int i = 0;i<3;i++) { try { String contact; System.out.println(" please fill the list at index "+ i); Scanner in = new Scanner(System.in); contact = in.next(); contactListNames[i] = contact; in.nextLine(); } catch(Exception e) { e.printStackTrace(); } } } heres the main one thats supposed too work. public void fillContactList() { int i =0; createConnection(); ArrayList<String> rowNames = new ArrayList<String>(); try { Statement stmt = conn.createStatement(); ResultSet namesList = stmt.executeQuery("SELECT name FROM Users"); try { while (namesList.next()) { rowNames.add(namesList.getString(1)); contactListNames =(String[])rowNames.toArray(new String[rowNames.size()]); // this used to print out contents of array list // System.out.println("" + rowNames); while(i<contactListNames.length) { System.out.println(" " + contactListNames[i]); i++; } } } catch(SQLException q) { q.printStackTrace(); } conn.commit(); stmt.close(); conn.close(); } catch(SQLException e) { e.printStackTrace(); } } i really need help here. im at my wits end. i just cant see why the first method would add to the JList no problem. but the second one wont. both the contactListNames array and array list can print fine and have the names in them. but i must be transfering them too the jlist wrong. please help p.s im aware this is long. but trust me its the short version.

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  • Java: How to check the random letters from a-z, out of 10 letters minimum 2 letter should be a vowel

    - by kalandar
    I am writing a program to validate the following scenarios: Scenario 1: I am using the Random class from java.util. The random class will generate 10 letters from a-z and within 10 letter, minimum 2 letters must be a vowels. Scenario 2: When the player 1 and player 2 form a word from A-Z, he will score some points. There will be a score for each letter. I have already assigned the values for A-Z. At the end of the game, the system should display a scores for player 1 and player 2. How do i do it? Please help. I will post my code here. Thanks a lot. =========================================== import java.util.Random; import java.util.Scanner; public class FindYourWords { public static void main(String[] args) { Random rand = new Random(); Scanner userInput = new Scanner(System.in); //==================Player object=============================================== Player playerOne = new Player(); playerOne.wordScore = 0; playerOne.choice = "blah"; playerOne.turn = true; Player playerTwo = new Player(); playerTwo.wordScore = 0; playerTwo.choice = "blah"; playerTwo.turn = false; //================== Alphabet ================================================== String[] newChars = { "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z" }; //values of the 26 alphabets to be used int [] letterScore = {1,3,3,2,1,4,2,4,1,8,5,1,3,1,1,3,10,1,1,1,1,4,4,8,4,10}; // to assign score to the player1 and player 2 String[] vowel = { "a", "e", "i", "o", "u" }; // values for vowels int vow=0; System.out.println("FINDYOURWORDS\n"); int[] arrayRandom = new int[10]; //int array for word limiter String[] randomLetter = new String[10]; //storing the letters in newChars into this array //=============================================================================== boolean cont = true; while (cont) { if (playerOne.turn) { System.out.print("Letters of Player 1: "); } else if (!playerOne.turn) { System.out.print("Letters of Player 2: "); } for (int i = 0; i < arrayRandom.length; i++) { //running through the array limiter int r = rand.nextInt(newChars.length); //assigning random nums to the array of letters randomLetter[i] = newChars[r]; System.out.print(randomLetter[i]+ " "); } //input section for player System.out.println(""); System.out.println("Enter your word (or '@' to pass or '!' to quit): "); if (playerOne.turn) { playerOne.choice = userInput.next(); System.out.println(playerOne.turn); playerOne.turn = false; } else if (!playerOne.turn){ playerTwo.choice = userInput.next(); System.out.println(playerOne.turn); playerOne.turn = true; } //System.out.println(choice); String[] wordList = FileUtil.readDictFromFile("words.txt"); //Still dunno what this is for if (playerOne.choice.equals("@")) { playerOne.turn = false; } else if (playerTwo.choice.equals("@")) { playerOne.turn = true; } else if (playerOne.choice.equals("!")) { cont = false; } for (int i = 0; i < wordList.length; i++) { //System.out.println(wordList[i]); if (playerOne.choice.equalsIgnoreCase(wordList[i]) || playerTwo.choice.equalsIgnoreCase(wordList[i])){ } } } }}

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  • How to handle recurring dates (dates only) in .NET?

    - by Wayne M
    I am trying to figure out a good way to handle recurring events in .NET, specifically for an ASP.NET MVC application. The idea is that a user can create an event and specify that the event can occur repeatedly after a specific interval (e.g. "every two weeks", "once a month" and so on). What would be the best way to tackle this? My brainstorming right now is to have two tables: Job and RecurringJob. Job is the "master" record and has the description of the job as well a key to what customer it's for, while RecurringJob links back to Job and has additional info on what the occurrence frequency is (e.g. 1 for "once a month") as well as the timespan (e.g. "Weekly", "Monthly"). The issue is how to determine and set the next occurrence of the job since this will have to be something that's done regularly. I've seen two trains of thought with this: This logic should either be stored in a database column and periodically updated, or calculated on the fly in the code. Any thoughts or suggestions on tackling this? Edit: this is for a subscription based web app I'm creating to let service businesses schedule their common recurring jobs easily and track their customers. So a typical use might be to create a "Cut lawn" job for Mr Smith that occurs every month The exact date isn't important - it's the ability for the customer to see that Mr Smith gets his lawn cut every month and followup with him about it. Let me rephrase the above to better convey my idea. A sample use case for the application might be as follows: User pulls up the customer record for John Smith and clicks the Add Job link. The user fills out the form to create a job with a name of "Cut lawn", a start date of 11/15/2009, and selects a checkbox indicating that this job continually occurs. The user is presented with a secondary screen asking for the job frequency. The user indicates (haven't decided how at this point - let's assume select lists) that the job occurs once a month. User clicks save. Now, when the user views the record for John Smith, they can see that he has a job, "Cut lawn", that occurs every month starting from 11/15/2009. On the main dashboard when it's one week prior to the assumed start date, the user sees the job displayed with an indicator such as "12/15/2009 - Cut lawn (John Smith)". A week before the due date someone from the company calls him up to schedule and he says he's going to be out of town until 1/1/2010, so he wants his appointment rescheduled for that date. Our user can change the date for the job to be 1/1/2010, and now the recurrence will start one month from that date (e.g. next time will be 2/1/2010). The idea behind this is that the app is targeting businesses like lawn care, plumbers, carpet cleaners and the like where the exact date isn't as important (because it can and will change as people are busy), the key thing is to give the business an indicator that Mr. Smith's monthly service is coming up, and someone should give him a call to determine when exactly it can be scheduled for. In effect give these businesses a way to track repeat business and know when it's time to followup with a customer.

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  • How perform USort() on an Array of Objects class definition as a method?

    - by user558724
    class Contact{ public $name; public $bgcolor; public $lgcolor; public $email; public $element; public function __construct($name, $bgcolor, $lgcolor, $email, $element) { $this->name = $name; $this->bgcolor = $bgcolor; $this->lgcolor = $lgcolor; $this->email = $email; $this->element = $element; } public static function sortByName(Contact $p1, Contact $p2) { return strcmp($p1->name, $p2->name); } } class ContactList implements Iterator, ArrayAccess { protected $_label; protected $_contacts = array(); public function __construct($label) { $this->_label = $label; } public function getLabel() { return $this->_label; } public function addContact(Contact $contact) { $this->_contacts[] = $contact; } public function current() { return current($this->_contacts); } public function key() { return key($this->_contacts); } public function next() { return next($this->_contacts); } public function rewind() { return reset($this->_contacts); } public function valid() { return current($this->_contacts); } public function offsetGet($offset) { return $this->_contacts[$offset]; } public function offsetSet($offset, $data) { if (!$data instanceof Contact) throw new InvalidArgumentException('Only Contact objects allowed in a ContactList'); if ($offset == '') { $this->_contacts[] = $data; } else { $this->_contacts[$offset] = $data; } } public function offsetUnset($offset) { unset($this->_contacts[$offset]); } public function offsetExists($offset) { return isset($this->_contacts[$offset]); } public function sort($attribute = 'name') { $sortFct = 'sortBy' . ucfirst(strtolower($attribute)); if (!in_array($sortFct, get_class_methods('Contact'))) { throw new Exception('contact->sort(): Can\'t sort by ' . $attribute); } usort($this->contact, 'ContactList::' . $sortFct); } } public function Sort($property, $asc=true) { // this is where sorting logic takes place $_pd = $this->_contact->getProperty($property); if ($_pd == null) { user_error('Property '.$property.' does not exist in class '.$this->_contact->getName(), E_WARNING); return; } // set sortDescriptor ContactList::$sortProperty = $_pd; // and apply sorting usort($this->_array, array('ContactList', ($asc?'USortAsc':'USortDesc'))); } function getItems(){ return $this->_array; } class SortableItem extends ContactList { static public $sortProperty; static function USortAsc($a, $b) { /*@var $_pd ReflectionProperty*/ /* $_pd = self::$sortProperty; if ($_pd !== null) { if ($_pd->getValue($a) === $_pd->getValue($b)) return 0; else return (($_pd->getValue($a) < $_pd->getValue($b))?-1:1); } return 0; } static function USortDesc($a, $b) { return -(self::USortAsc($a,$b)); } } This approach keeps giving me PHP Warnings: usort() [function.usort]: of all kinds which I can provide later as needed to comment out those methods and definitions in order to test and fix some minor bugs of our program. **$billy parameters are already defined. $all -> addContact($billy); // --> ended up adding each contact manually above $all->Sort('name',true); $items = $all->getItems(); foreach($items as $contact) { echo $contact->__toString(); } $all->sort(); The reason for using usort is to re-arrange the order alphabetically by name but somehow is either stating that the function comparison needs to be an array or another errors which obviously I have seemed to pass. Any help would be greatly appreciated, thanks in advance.

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  • Insert a transformed integer_sequence into a variadic template argument?

    - by coderforlife
    How do you insert a transformed integer_sequence (or similar since I am targeting C++11) into a variadic template argument? For example I have a class that represents a set of bit-wise flags (shown below). It is made using a nested-class because you cannot have two variadic template arguments for the same class. It would be used like typedef Flags<unsigned char, FLAG_A, FLAG_B, FLAG_C>::WithValues<0x01, 0x02, 0x04> MyFlags. Typically, they will be used with the values that are powers of two (although not always, in some cases certain combinations would be made, for example one could imagine a set of flags like Read=0x1, Write=0x2, and ReadWrite=0x3=0x1|0x2). I would like to provide a way to do typedef Flags<unsigned char, FLAG_A, FLAG_B, FLAG_C>::WithDefaultValues MyFlags. template<class _B, template <class,class,_B> class... _Fs> class Flags { public: template<_B... _Vs> class WithValues : public _Fs<_B, Flags<_B,_Fs...>::WithValues<_Vs...>, _Vs>... { // ... }; }; I have tried the following without success (placed inside the Flags class, outside the WithValues class): private: struct _F { // dummy class which can be given to a flag-name template template <_B _V> inline constexpr explicit _F(std::integral_constant<_B, _V>) { } }; // we count the flags, but only in a dummy way static constexpr unsigned _count = sizeof...(_Fs<_B, _F, 1>); static inline constexpr _B pow2(unsigned exp, _B base = 2, _B result = 1) { return exp < 1 ? result : pow2(exp/2, base*base, (exp % 2) ? result*base : result); } template <_B... _Is> struct indices { using next = indices<_Is..., sizeof...(_Is)>; using WithPow2Values = WithValues<pow2(_Is)...>; }; template <unsigned N> struct build_indices { using type = typename build_indices<N-1>::type::next; }; template <> struct build_indices<0> { using type = indices<>; }; //// Another attempt //template < _B... _Is> struct indices { // using WithPow2Values = WithValues<pow2(_Is)...>; //}; //template <unsigned N, _B... _Is> struct build_indices // : build_indices<N-1, N-1, _Is...> { }; //template < _B... _Is> struct build_indices<0, _Is...> // : indices<_Is...> { }; public: using WithDefaultValues = typename build_indices<_count>::type::WithPow2Values; Of course, I would be willing to have any other alternatives to the whole situation (supporting both flag names and values in the same template set, etc). I have included a "working" example at ideone: http://ideone.com/NYtUrg - by "working" I mean compiles fine without using default values but fails with default values (there is a #define to switch between them). Thanks!

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  • jQuery $.ajax response empty, but only in Chrome

    - by roguepixel
    I've exhausted every avenue of research to solve this one so hopefully someone else will think of something I just didn't. Relatively straight forward setup, I have a html page with some javascript that makes an ajax request to a URL (in the same domain) the java web app in the background does its stuff and returns a partial html page (no html, head or body tags, just the content) which should be inserted at a particular point in the page. All sounds pretty easy and the code I have works in IE, Firefox and Safari, but not in Chrome. In Chrome the target element just ends up empty and if I look at the resource request in Chromes developer tools the response content is also empty. All very confusing, I've tried a myriad of things to solve it and I'm just out of ideas. Any help would be greatly appreciated. var container = $('#container'); $.ajax({ type: 'GET', url: '/path/to/local/url', data: data('parameters=value&another=value2'), dataType: 'html', cache: false, beforeSend: requestBefore, complete: requestComplete, success: requestSuccess, error: requestError }); function data(parameters) { var dictionary = {}; var pairs = parameters.split('&'); for (var i = 0; i < pairs.length; i++) { var keyValuePair = pairs[i].split('='); dictionary[keyValuePair[0]] = keyValuePair[1]; } return dictionary; } function requestBefore() { container.find('.message.error').hide(); container.prepend('<div class="modal"><div class="indicator">Loading...</div></div>'); } function requestComplete() { container.find('.modal').remove(); } function requestSuccess(response) { container.empty(); container.html(response); } function requestError(response) { if (response.status == 200 && response.responseText == 'OK') { requestSuccess(response); } else { container.find('.message.error').fadeIn('slow'); } } All of this is executed in a $(document).ready(function() {}); Cheers, Jim @Oleg - Additional information requested, an example of the response that the ajax call might receive. <p class="message error hidden">An unknown error occured while trying to retrieve data, please try again shortly.</p> <div class="timeline"> <a class="icon shuttle-previous" rel="max_id=16470650733&page=1&q=something">Newer Data</a> <a class="icon shuttle-next" rel="max_id=16470650733&page=3&q=something">Older Data</a> </div> <ol class="social"> <li class="even"> <div class="avatar"> <img src="sphere_normal.gif"/> </div> <p> Some Content<br/> <span class="published">Jun 18, 2010 11:29:05 AM</span> - <a target="_blank" href="">Direct Link</a> </p> </li> <li class="odd"> <div class="avatar"> <img src="sphere_normal.gif"/> </div> <p> Some Content<br/> <span class="published">Jun 18, 2010 11:29:05 AM</span> - <a target="_blank" href="">Direct Link</a> </p> </li> </ol> <div class="timeline"> <a class="icon shuttle-previous" rel="max_id=16470650733&page=1&q=something">Newer Data</a> <a class="icon shuttle-next" rel="max_id=16470650733&page=3&q=something">Older Data</a> </div>

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  • using JQuery and Ajax to post a form

    - by hopes
    Hi there, I want to use ajax to post my form I want radiobuttons to do this(there is no submit buton) so clicking a radiobutton will cause a form to be submitted or be post my php page needs to know the name of the radio button clicked is my code correct? cuz it doesn't work and I don't know why? <div id="Q1"> <form id="Question1" method='post'> <br /> <P> The sky color is.. </P><img border="0" src="images/wonder.png" width="94" height="134"/><br /><br /><br /> <input type="radio" id="option1" name="answer[1]" value="correct!"/> blue <br /> <input type="radio" id="option1" name="answer[1]" value="false!"/> red <br /> <input type="radio" id="option1" name="answer[1]" value="false!"/> green <br /> <input type="radio" id="option1" name="answer[1]" value="false!"/> white <br /> <br /> </Form> <!-- <p id="greatp" style="display: none;"> GREAT !!<br /><br /><br /><br /><br /><br /><br /></p> --> <img border="0" src="images/welldone3.png" width="230" height="182" id="greatp" style="display: none;"/> <!-- <p id="sorryp" style="display: none;"> Sorry !!<br /><br /><br /><br /><br /><br /><br /></p> --> <img border="0" src="images/failed3.png" width="230" height="182" id="sorryp" style="display: none;"/> <img src="images/false2.png"id="myImage1"style="display: none;"/> <img src="images/correct2.png"id="myImage2"style="display: none;"/> <!-- <input type= "submit" onclick="Next1()" value="Next"/> --> <input type="image" src="images/next.png" name="image" width="80" height="30" onclick="Next1()"> </div> jquery cod: <script> $(document).ready(function(){ $("#option1").click(function() { var answer= $("#option1").value; var fff= $("#option1").name; $.ajax({ type: "POST", url: "page2.php", data: fff, success: function(){ if(answer=='correct!') { $('#greatp').show(); $('#myImage2').show(); $('#Question1').hide(); } else { $('#sorryp').show(); $('#myImage1').show(); $('#Question1').hide(); } } }); return false; }); }); </script>

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  • won't repaint a different Month after pressing button in my calendar

    - by DarkStar123
    I'm trying to build a Calendar in Java as a little project I thought of, But I can't seem to change the name of the Month every time I click the Next button. here's my code! package drawing; import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Drawing_something extends JPanel{ int[] calender_squares = {1, 2, 3, 4, 5, 6, 7}; String[] Month = {"January", "February", "March", "April","May","June","July", "August","September","October","November","December"}; int i = 0; Graphics c; @Override public void paintComponent(Graphics c){ super.paintComponent(c); this.setBackground(Color.WHITE); int WIDTH = 55, HEIGHT = 65; for (int in: calender_squares) { for (int counter = 0; counter < 7; counter++){ c.drawRect(50, 50, 100, 100); c.drawRect(50, 50, 700, 500); c.copyArea(50, 50, 600, 500, 100, 0); c.copyArea(50, 50, 600, 400, 0, 100); } } for (int date = 1; date <= 30; date++) { String s = String.valueOf(date); c.drawString(s, WIDTH, HEIGHT); if (date <= 6){ WIDTH += 100; } else if (date == 7){ WIDTH = 55; HEIGHT = 165; }else if (date <= 13){ WIDTH += 100; }else if (date == 14){ WIDTH = 55; HEIGHT = 265; }else if (date <= 20){ WIDTH += 100; }else if (date == 21){ WIDTH = 55; HEIGHT = 365; }else if (date <= 27){ WIDTH += 100; }else if (date == 28){ WIDTH = 55; HEIGHT = 465; }else if (date <= 30){ WIDTH += 100; } } c.setFont(new Font("default", Font.BOLD, 40)); c.drawString(Month[i], 320, 45); } public Drawing_something(){ setLayout(new BorderLayout()); JButton N = new JButton("NEXT"); JButton B = new JButton("BACK"); JPanel P = new JPanel(); P.add(B); P.add(N); add(P, BorderLayout.SOUTH); B.addActionListener(new HandlerClass()); N.addActionListener(new NextClass()); } public class HandlerClass implements ActionListener{ public void actionPerformed(ActionEvent e){ } } public class NextClass implements ActionListener{ public void actionPerformed(ActionEvent e){ if (i == 11){ i = 0; } i = i + 1; c.drawString(Month[i], 320, 45); } } public static void main(String[] args){ JFrame mainFrame = new JFrame("Calender"); mainFrame.add(new Drawing_something()); mainFrame.setSize(850, 650); mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainFrame.setVisible(true); } } if anyone could help that would be much appreciated!! Thanks in advance!!

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  • jQuery - animating 'left' position of absolutely positioned div when sliding panel is revealed

    - by trickymatt
    Hello, I have a hidden panel off the left side of the screen which slides into view on the click of a 'tab' positioned on the left side of the screen. I need the panel to slide over the top of the existing page content, and I need the tab to move with it. and so both are absolutely positioned in css. Everything works fine, apart from I need the tab (and thus the tab-container) to move left with the panel when it is revealed, so it appears to be stuck to the right-hand-side of the panel. Its relatively simple when using floats, but of course this affects the layout of the existing content, hence absolute positioning. I have tried animating the left position of the panel-container (see the documented jquery function), but I cant get it to work. My HTML <div><!--sample page content--> <p> Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et </p> </div> <div id="panel" class="height"> <!--the hidden panel --> <div class="content"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore</p> </div> </div> <!--if javascript is disabled use this link--> <div id="tab-container" class="height"> <a href="#" onclick="return()"> <div id="tab"><!-- this will activate the panel. --></div> </a> </div> My jQuery $(document).ready(function(){ $("#panel, .content").hide(); //hides the panel and content from the user $('#tab').toggle(function(){ //adding a toggle function to the #tab $('#panel').stop().animate({width:"400px", opacity:0.8}, 100, //sliding the #panel to 400px // THIS NEXT FUNCTION DOES NOT WORK --> function() { $('#tab-container').animate({left:"400px"} //400px to match the panel width }); function() { $('.content').fadeIn('slow'); //slides the content into view. }); }, function(){ //when the #tab is next cliked $('.content').fadeOut('slow', function() { //fade out the content $('#panel').stop().animate({width:"0", opacity:0.1}, 500); //slide the #panel back to a width of 0 }); }); }); and this is the css #panel { position:absolute; left:0px; top:50px; background-color:#999999; height:500px; display:none;/*hide the panel if Javascript is not running*/ } #panel .content { width:290px; margin-left:30px; } #tab-container{ position:absolute; top:20px; width:50px; height:620px; background:#161616; } #tab { width:50px; height:150px; margin-top:100px; display:block; cursor:pointer; background:#DDD; } Many thanks

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  • hosting simple python scripts in a container to handle concurrency, configuration, caching, etc.

    - by Justin Grant
    My first real-world Python project is to write a simple framework (or re-use/adapt an existing one) which can wrap small python scripts (which are used to gather custom data for a monitoring tool) with a "container" to handle boilerplate tasks like: fetching a script's configuration from a file (and keeping that info up to date if the file changes and handle decryption of sensitive config data) running multiple instances of the same script in different threads instead of spinning up a new process for each one expose an API for caching expensive data and storing persistent state from one script invocation to the next Today, script authors must handle the issues above, which usually means that most script authors don't handle them correctly, causing bugs and performance problems. In addition to avoiding bugs, we want a solution which lowers the bar to create and maintain scripts, especially given that many script authors may not be trained programmers. Below are examples of the API I've been thinking of, and which I'm looking to get your feedback about. A scripter would need to build a single method which takes (as input) the configuration that the script needs to do its job, and either returns a python object or calls a method to stream back data in chunks. Optionally, a scripter could supply methods to handle startup and/or shutdown tasks. HTTP-fetching script example (in pseudocode, omitting the actual data-fetching details to focus on the container's API): def run (config, context, cache) : results = http_library_call (config.url, config.http_method, config.username, config.password, ...) return { html : results.html, status_code : results.status, headers : results.response_headers } def init(config, context, cache) : config.max_threads = 20 # up to 20 URLs at one time (per process) config.max_processes = 3 # launch up to 3 concurrent processes config.keepalive = 1200 # keep process alive for 10 mins without another call config.process_recycle.requests = 1000 # restart the process every 1000 requests (to avoid leaks) config.kill_timeout = 600 # kill the process if any call lasts longer than 10 minutes Database-data fetching script example might look like this (in pseudocode): def run (config, context, cache) : expensive = context.cache["something_expensive"] for record in db_library_call (expensive, context.checkpoint, config.connection_string) : context.log (record, "logDate") # log all properties, optionally specify name of timestamp property last_date = record["logDate"] context.checkpoint = last_date # persistent checkpoint, used next time through def init(config, context, cache) : cache["something_expensive"] = get_expensive_thing() def shutdown(config, context, cache) : expensive = cache["something_expensive"] expensive.release_me() Is this API appropriately "pythonic", or are there things I should do to make this more natural to the Python scripter? (I'm more familiar with building C++/C#/Java APIs so I suspect I'm missing useful Python idioms.) Specific questions: is it natural to pass a "config" object into a method and ask the callee to set various configuration options? Or is there another preferred way to do this? when a callee needs to stream data back to its caller, is a method like context.log() (see above) appropriate, or should I be using yield instead? (yeild seems natural, but I worry it'd be over the head of most scripters) My approach requires scripts to define functions with predefined names (e.g. "run", "init", "shutdown"). Is this a good way to do it? If not, what other mechanism would be more natural? I'm passing the same config, context, cache parameters into every method. Would it be better to use a single "context" parameter instead? Would it be better to use global variables instead? Finally, are there existing libraries you'd recommend to make this kind of simple "script-running container" easier to write?

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  • Can't figure out this file behavior in IOS 4.2

    - by Don Jones
    Odd behavior with file behavior. Here's the thing: I'm using the phone camera to snap a picture, and internally generating a thumbnail. I'm saving those as temp files in the Documents directory. Here's the complete code: - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { UIImage *photo = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; photo = [self scaleAndRotateImage:photo]; // save photo NSString *docsDir = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]; NSLog(@"Writing to %@",docsDir); // save photo file NSLog(@"Saving photo as %@",[NSString stringWithFormat:@"%@/temp_photo.png",docsDir]); [UIImagePNGRepresentation(photo) writeToFile:[NSString stringWithFormat:@"%@/temp_photo.png",docsDir] atomically:YES]; // make and save thumbnail NSLog(@"Saving thumbnail as %@",[NSString stringWithFormat:@"%@/temp_thumb.png",docsDir]); UIImage *thumb = [self makeThumbnail:photo]; [UIImagePNGRepresentation(thumb) writeToFile:[NSString stringWithFormat:@"%@/temp_thumb.png",docsDir] atomically:YES]; NSFileManager *manager = [NSFileManager defaultManager]; NSError *error; NSArray *files = [manager contentsOfDirectoryAtPath:docsDir error:&error]; NSLog(@"\n\nThere are %d files in the documents directory %@",(files.count),docsDir); for (int i = 0; i < files.count; i++) { NSString *filename = [files objectAtIndex:i]; NSLog(@"Seeing filename %@",filename); } // done //[photo release]; //[thumb release]; [self dismissModalViewControllerAnimated:NO]; [delegate textInputFinished]; } As you can see, I've put quite a bit of logging in here in an attempt to figure out my problem (which is coming up). The log output to this point is: Writing to /var/mobile/Applications/77D792DC-A224-4A47-8A4C-BB7C557626F3/Documents Saving photo as /var/mobile/Applications/77D792DC-A224-4A47-8A4C-BB7C557626F3/Documents/temp_photo.png Saving thumbnail as /var/mobile/Applications/77D792DC-A224-4A47-8A4C-BB7C557626F3/Documents/temp_thumb.png There are 3 files in the documents directory /var/mobile/Applications/77D792DC-A224-4A47-8A4C-BB7C557626F3/Documents Seeing filename temp_photo.png Seeing filename temp_text.txt Seeing filename temp_thumb.png This is absolutely as-expected. I clearly have three files on the device. Here's the very next code that operates - the code that received the textInputFinished message: - (void)textInputFinished { NSFileManager *fileManager = [NSFileManager defaultManager]; NSString *docsDir = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]; NSError *error; // get next filename NSString *filename; int i = 0; do { i++; filename = [NSString stringWithFormat:@"%@/reminder_%d",docsDir,i]; NSLog(@"Trying filename %@",filename); } while ([fileManager fileExistsAtPath:[filename stringByAppendingString:@".txt"]]); NSLog(@"New base filename is %@",filename); NSArray *files = [fileManager contentsOfDirectoryAtPath:docsDir error:&error]; NSLog(@"There are %d files in the directory %@",(files.count),docsDir); This is testing to get a new, non-temp, not-in-use filename. It does that - but then it says there aren't any files in the documents folder! Here's the logged output: Trying filename /var/mobile/Applications/77D792DC-A224-4A47-8A4C-BB7C557626F3/Documents/reminder_1 New base filename is /var/mobile/Applications/77D792DC-A224-4A47-8A4C-BB7C557626F3/Documents/reminder_1 There are 0 files in the directory /var/mobile/Applications/77D792DC-A224-4A47-8A4C-BB7C557626F3/Documents What the heck? Where did the three files go?

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