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  • Do you develop with security in mind?

    - by MattyD
    I was listening to a podcast on Security Now and they mentioned about how a lot of the of the security problems found in Flash were because when flash was first developed it wasdn't built with security in mind because it didn't need to thus flash has major security flaws in its design etc. I know best practices state that you should build secure first etc. Some people or companies don't always follow 'best practice'... My question is do you develop to be secure or do you build with all the desired functionality etc then alter the code to be secure (Whatever the project maybe) (I realise that this question could be a possible duplicate of Do you actively think about security when coding? but it is different in the fact of actually process of building the software/application and design of said software/application)

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  • Sparse O(1) array with indices being consecutive products

    - by Kos
    Hello, I'd like to pre-calculate an array of values of some unary function f. I know that I'll only need the values for f(x) where x is of the form of a*b, where both a and b are integers in range 0..N. The obvious time-optimized choice is just to make an array of size N*N and just pre-calculate just the elements which I'm going to read later. For f(a*b), I'd just check and set tab[a*b]. This is the fastest method possible - however, this is going to take a lot of space as there are lots of indices in this array (starting with N+1) which will never by touched. Another solution is to make a simple tree map... but this slows down the lookup itself very heavily by introducing lots of branches. No. I wonder - is there any solution to make such an array less sparse and smaller, but still quick branchless O(1) in lookup?

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  • How do I point a new domain to start on a page that's not index.html on separate hosting? [closed]

    - by Owen Campbell-Moore
    Possible Duplicate: How do I point a new domain to start on a page that's not index.html on separate hosting? I'm using a service called SquareSpace to host my site, and today I'm registering the domain for it. Basically, how do I make it so when somebody types www.tedxoxford.com it points at http://www.tedxoxford.com/landing (currently http://tedxoxford.squarespace.com/landing) instead of the default index? Is this possible? Squarespace is quite a restricted CMS and means that your logos etc all point to the index so I don't want people ending up on my landing/splash page every time they want the home page, only on the first time they type in the URL. A dirty hack would be to check the refferer and redirect anyone hitting the index to the landing page, but that's a lot of loading overhead I'd rather avoid...

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  • My MS Access control displays no text for appended items following an append query

    - by Zaid
    The control in question is part of a datasheet-style subform that feeds off a multi-field combo-box. The control is bound to the first field of the combo box, an ID field which is hidden from view (column width set to zero). Consequently, the second field (Code) is displayed in the control when an item is selected from the combo box. I'm using a form button action to append values to this datasheet. It seems that because I need to INSERT ID values in, the control is unable to display the corresponding Code value. Nothing is visible, unless I go manually into the combo box and select an item from it. How can I get the control to display the Code value?

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  • Don't Use Static? [closed]

    - by Joshiatto
    Possible Duplicate: Is static universally “evil” for unit testing and if so why does resharper recommend it? Heavy use of static methods in a Java EE web application? I submitted an application I wrote to some other architects for code review. One of them almost immediately wrote me back and said "Don't use "static". You can't write automated tests with static classes and methods. "Static" is to be avoided." I checked and fully 1/4 of my classes are marked "static". I use static when I am not going to create an instance of a class because the class is a single global class used throughout the code. He went on to mention something involving mocking, IOC/DI techniques that can't be used with static code. He says it is unfortunate when 3rd party libraries are static because of their un-testability. Is this other architect correct?

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  • copyright of some arcade classics [closed]

    - by kamziro
    Possible Duplicate: How closely can a game resemble another game without legal problems So suppose I'm currently developing a variant of a snakes game for the iPhone, and you decided to call it "snakes". First, in general, how would you find out if a name's been copyrighted or not? It's probably safe with "snakes" because it's such a common word, and that there's been so many games around (please correct me if I'm wrong), but with some people copyrighting the name "edge", it would be best to be a bit careful. Second, suppose I decided to go with some name that is guaranteed to be different (e.g EL SERPENTES DE LOS REYES), would gameplay be a point of contention on copyright issues? For example, the tetris game is sort of "copyrighted" at the apple app store, and there was a crackdown on anyone using the word "tris" or anything related to it. However, if there was a game with the gameplay of tetris (or loosely very similar), with the name "BLOXODEREX", can it be liable to copyright/DMCA issues?

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  • Add comma-separated value of grouped rows to existing query

    - by Peter Lang
    I've got a view for reports, that looks something like this: SELECT a.id, a.value1, a.value2, b.value1, /* (+50 more such columns)*/ FROM a JOIN b ON (b.id = a.b_id) JOIN c ON (c.id = b.c_id) LEFT JOIN d ON (d.id = b.d_id) LEFT JOIN e ON (e.id = d.e_id) /* (+10 more inner/left joins) */ It joins quite a few tables and returns lots of columns, but indexes are in place and performance is fine. Now I want to add another column to the result, showing comma-separated values ordered by value from table y outer joined via intersection table x if a.value3 IS NULL, else take a.value3 To comma-separate the grouped values I use Tom Kyte's stragg, could use COLLECT later. Pseudo-code for the SELECT would look like that: SELECT xx.id, COALESCE( a.value3, stragg( xx.val ) ) value3 FROM ( SELECT x.id, y.val FROM x WHERE x.a_id = a.id JOIN y ON ( y.id = x.y_id ) ORDER BY y.val ASC ) xx GROUP BY xx.id What is the best way to do it? Any tips?

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  • PLPGSQL : Return a record from function executed by INSERT/UPDATE rule

    - by seas
    Do the following scheme for my database: create sequence data_sequence; create table data_table { id integer primary key; field varchar(100); }; create view data_view as select id, field from data_table; create function data_insert(_new data_view) returns data_view as $$declare _id integer; _result data_view%rowtype; begin _id := nextval('data_sequence'); insert into data_table(id, field) values(_id, _new.field); select * into _result from data_view where id = _id; return _result; end; $$ language plpgsql; create rule insert as on insert to data_view do instead select data_insert(new); Then type in psql: insert into data_view(field) values('abc'); Would like to see something like: id | field ----+--------- 1 | abc Instead see: data_insert ------------- (1, "abc") Is it possible to fix this somehow? Thanks for any ideas.

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  • Drawing the call stack in a recursive method

    - by Shaza
    Hey, I want to draw the call stack for any recursive method, so I've created a schema like this, recursiveMethod(){ //Break recursion condition if(){ // Add value here to the return values' list- No drawing return } else{ //Draw stack with the value which will be pushed to the stack here variable <- recursiveMethod() //Clear the drawing which represents the poped value from the stack here return variable }} Notes: This schema can draw recursive methods with n recursive call by making the recursive calls in a separate return statements. returnValues list, is a list which save all the return values, just for viewing issues. What do you think of this? any suggestions are extremely welcomed.

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  • How to filter rows in JTable based on boolean valued columns?

    - by vinny
    Im trying to filter rows based on a column say c1 that contains boolean values. I want to show only rows that have 'true' in c1. I looked up the examples in http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#sorting. The example uses a regex filter. Is there any way I can use boolean values to filter rows? Following is the code Im using (borrowed from the example) private void filter(boolean show) { RowFilter<TableModel, Object> filter = null; TableModel model = jTb.getModel(); boolean value = (Boolean) model.getValueAt(0,1); //If current expression doesn't parse, don't update. try { // I need to used 'value' to filter instead of filterText. filter =RowFilter.regexFilter(filterText, 0); } catch (java.util.regex.PatternSyntaxException e) { return; } sorter.setRowFilter(filter); } thank you.

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  • MATLAB: Convert two array to a sparse matrix

    - by CziX
    I'm looking for an a command or trick to convert two arrays to a sparse matrix. The two arrays contain x-values and y-values, which gives a coordinate in the cartesian coordinate system. I want to group the coordinates, which if the value is between some value on the x-axes and the y-axes. % MATLAB x_i = find(x > 0.1 & x < 0.9); y_i = find(y > 0.4 & y < 0.8); %Then I want to find indicies which are located in both x_i and y_i Is there an easy way to this little trick?

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  • How to set up an insert to a grails created file with next sequence number?

    - by Jack BeNimble
    I'm using a JMS queue to read from and insert data into a postgres table created by grails. The problem is obtaining the next sequence value. I thought I had found the solution with the following statement (by putting "DEFAULT" where the ID should go), but it's no longer working. I must have changed something, because I needed to recreate the table. What's the best way to get around this problem? ps = c.prepareStatement("INSERT INTO xml_test (id, version, xml_text) VALUES (DEFAULT, 0, ?)"); UPDATE: In response to the suggested solution, I did the following: Added this to the the domain: class XmlTest { String xmlText static constraints = { id generator:'sequence', params:[name:'xmltest_sequence'] } } And changed the insert statement to the following: ps = c.prepareStatement("INSERT INTO xml_test (id, version, xml_text) VALUES (nextval('xmltest_sequence'), 0, ?)"); However, when I run the statement, I get the following error: [java] 1 org.postgresql.util.PSQLException: ERROR: relation "xmltest_sequence" does not exist Any thoughts?

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  • Obsolete Computer Parts as Art [DIY]

    - by Jason Fitzpatrick
    If you’re like most geeks, you’ve got a box of aging computer equipment you just haven’t got around to hauling to your city’s haz-mat drop off site. This simple tutorial turns cast off circuit boards into wall art. While the author of the tutorial opted to use motherboards, you could easily use smaller frames/mats and use old expansion boards too. The process involves inexpensive IKEA frames with mats, popping the I/O ports off the boards to make them thinner, and drilling small mount holes in the backer board to mount the boards in place. Hit up the link below for more details. Motherboard Art [via IKEAHackers] How to Use an Xbox 360 Controller On Your Windows PC Download the Official How-To Geek Trivia App for Windows 8 How to Banish Duplicate Photos with VisiPic

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  • How to filter a dataview

    - by dboarman-FissureStudios
    I have a dataview that contains a list of tables. I am reading in a list of values that I then want to apply as a filter to this dataview. The list of values is actually in the form of "table1, table2, table3". So I thought I would be able to use this as a filter on my dataview. SqlOp.CommandText = "select name from dbo.sysobjects where xtype='u'"; SqlOp.ExecuteDataReader(); DataView dv = SqlOp.GetDataAsDataView(); SqlOp.CloseConnection(); Returns a list of all the tables in a dataview. Any help on how to filter this dataview? Edit: Not sure if I was completely clear in what I seek to accomplish. To clarify, I am trying to figure out how/if .RowFilter will help me in filtering this dataview. Something like: dv.RowFilter = "name IN (table1, table2, table3)" // I know this doesn't work

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  • How to deal with RGB to YUV conversion

    - by maximus
    The formula says: Y = 0.299 * R + 0.587 * G + 0.114 * B; U = -0.14713 * R - 0.28886 * G + 0.436 * B; V = 0.615 * R - 0.51499 * G - 0.10001 * B; What if, for example, the U variable becomes negative? U = -0.14713 * R - 0.28886 * G + 0.436 * B; Assume maximum values for R and G (ones) and B = 0 So, I am interested in implementing this convetion function in OpenCV, So, how to deal with negative values? Using float image? anyway please explain me, may be I don't understand something..

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  • SelectedValue which is invalid because it does not exist in the list of items

    - by Bob Jones
    I encounter this problem repeatedly, and haven't a clue what is causing it. I get an exception in the DataBind: "SelectedValue which is invalid because it does not exist in the list of items". Here are some important pieces of information: 1) I reload listOrgs periodically when the underlying data has changed. 2) The Organization.DTListAll call returns about 500 Int, String pairs. 3) There are no duplicate or null values in the returned data 4) After the first two lines below, listOrgs.Items.Count is 0, and the Selected Value is 0 5) The selected value when the DataBind operation executes is a value that is not in the set of ID values returned 6) All of the stuff I have found on line so far hasn't helped. 7) I am stumped! listOrgs.Items.Clear(); listOrgs.SelectedValue = "0"; listOrgs.DataSource = new Organization().DTListAll(SiteID); listOrgs.DataTextField = "OrganizationName"; listOrgs.DataValueField = "OrganizationID"; listOrgs.DataBind(); Bob Jones

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  • Need Simple way to access XML in VB.Net - Pain with Linq-to-Xml

    - by aiart
    Dim myXDoc As XDocument = _ I want to access this in a simple way in VB.Net - Like: Dim Integer SizeXStr = CInt(MyZDoc.Cameras(1).Camera_Desc.@SizeX) ' where (1) is an index Why isn't this implemented in VB.Net? Better yet, type the values with a Schema and eliminate the conversion. Is this so hard? How do I access, in a simple way, data in XML - this would be VERY VERY useful! I have been using Query to try to get the values - when I use MsgBox() to display results, they display, but my main Windows Form is Trashed - changed colors, etc. The system has Bugs. Instead, I have to create an elaborate structure of arrays of objects and read the XML line-by-line and do the same for saving - this is the dark ages. Art

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  • JFormattedTextField : input time duration value

    - by bguiz
    I want to use a JFormattedTextField to allow the user to input time duration values into a form. Sample valid values are: 2h 30m 72h 15m 6h 0h However I am having limited success with this. Can some one please suggest how this can be accomplished? I am OK if this result can be achieved using a JTextField as well. Thanks! If it is worth anything, here's my current attempt: mFormattedText.setFormatterFactory( new DefaultFormatterFactory( new DateFormatter( new SimpleDateFormat("H mm")))); This sorta works except that: I cannot get h and m to appear as plain text (I tried escaping) * The number of hours has a max *: See @nanda's answer

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  • Getting pixel data from an image using java.

    - by Matt
    I'm trying to get the pixel rgb values from a 64 x 48 bit image. I get some values but nowhere near the 3072 (= 64 x 48) values that I'm expecting. I also get: Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Coordinate out of bounds! at sun.awt.image.ByteInterleavedRaster.getDataElements(ByteInterleavedRaster.java:301) at java.awt.image.BufferedImage.getRGB(BufferedImage.java:871) at imagetesting.Main.getPixelData(Main.java:45) at imagetesting.Main.main(Main.java:27) I can't find the out of bounds error... Here's the code: package imagetesting; import java.io.IOException; import javax.imageio.ImageIO; import java.io.File; import java.awt.image.BufferedImage; public class Main { public static final String IMG = "matty.jpg"; public static void main(String[] args) { BufferedImage img; try { img = ImageIO.read(new File(IMG)); int[][] pixelData = new int[img.getHeight() * img.getWidth()][3]; int[] rgb; int counter = 0; for(int i = 0; i < img.getHeight(); i++){ for(int j = 0; j < img.getWidth(); j++){ rgb = getPixelData(img, i, j); for(int k = 0; k < rgb.length; k++){ pixelData[counter][k] = rgb[k]; } counter++; } } } catch (IOException e) { e.printStackTrace(); } } private static int[] getPixelData(BufferedImage img, int x, int y) { int argb = img.getRGB(x, y); int rgb[] = new int[] { (argb >> 16) & 0xff, //red (argb >> 8) & 0xff, //green (argb ) & 0xff //blue }; System.out.println("rgb: " + rgb[0] + " " + rgb[1] + " " + rgb[2]); return rgb; } }

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  • SQL SERVER – Weekly Series – Memory Lane – #006

    - by pinaldave
    Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. 2006 This was my very first year of blogging so I was every day learning something new. As I have said many times, that blogging was never an intention. I had really not understood what exactly I am working on or beginning when I was beginning blogging in 2006. I had never knew that my life was going to change forever, once I started blogging. When I look back all of this year, I am happy that we are here together. 2007 IT Outsourcing to India – Top 10 Reasons Companies Outsource Outsourcing is about trust, collaboration and success. Helping other countries in need has been always the course of mankind, outsourcing is nothing different then that. With information technology and process improvements increasing the complexity, costs and skills required to accomplish routine tasks as well as challenging complex tasks, companies are outsourcing such tasks to providers who have the expertise to perform them at lower costs , with greater value and quality outcome. UDF – Remove Duplicate Chars From String This was a very interesting function I wrote in my early career. I am still using this function when I have to remove duplicate chars from strings. I have yet to come across a scenario where it does not work so I keep on using it till today. Please leave a comment if there is any better solution to this problem. FIX : Error : 3702 Cannot drop database because it is currently in use This is a very generic error when DROP Database is command is executed and the database is not dropped. The common mistake user is kept the connection open with this database and trying to drop the database. The database cannot be dropped if there is any other connection open along with it. It is always a good idea to take database in single user mode before dropping it. Here is the quick tutorial regarding how to bring the database in single user mode: Using T-SQL | Using SSMS. 2008 Install SQL Server 2008 – How to Upgrade to SQL Server 2008 – Installation Tutorial This was indeed one of the most popular articles in SQL Server 2008. Lots of people wanted to learn how to install SQL SErver 2008 but they were facing various issues while installation. I build this tutorial which becomes reference points for many. Default Collation of SQL Server 2008 What is the collation of SQL Server 2008 default installations? I often see this question confusing many experienced developers as well. Well the answer is in following image. Ahmedabad SQL Server User Group Meeting – November 2008 User group meetings are fun, now a days I am going to User Group meetings every week but there was a case when I have been just a beginner on this subject. The bug of the community was caught on me years ago when I started to present in Ahmedabad and Gandhinagar SQ LServer User Groups. 2009 Validate an XML document in TSQL using XSD My friend Jacob Sebastian wrote an excellent article on the subject XML and XSD. Because of the ‘eXtensible’ nature of XML (eXtensible Markup Language), often there is a requirement to restrict and validate the content of an XML document to a pre-defined structure and values. XSD (XML Schema Definition Language) is the W3C recommended language for describing and validating XML documents. SQL Server implements XSD as XML Schema Collections. Star Join Query Optimization At present, when queries are sent to very large databases, millions of rows are returned. Also the users have to go through extended query response times when joining multiple tables are involved with such queries. ‘Star Join Query Optimization’ is a new feature of SQL Server 2008 Enterprise Edition. This mechanism uses bitmap filtering for improving the performance of some types of queries by the effective retrieval of rows from fact tables. 2010 These puzzles are very interesting and intriguing – there was lots of interest on this subject. If you have free time this weekend. You may want to try them out. SQL SERVER – Challenge – Puzzle – Usage of FAST Hint (Solution)  SQL SERVER – Puzzle – Challenge – Error While Converting Money to Decimal (Solution)  SQL SERVER – Challenge – Puzzle – Why does RIGHT JOIN Exists (Open)  Additionally, I had great fun presenting SQL Server Performance Tuning seminar at fantastic locations in Hyderabad. Installing AdventeWorks Database This has been the most popular request I have received on my blog. Here is the quick video about how one can install AdventureWorks. 2011 Effect of SET NOCOUNT on @@ROWCOUNT There was an interesting incident once while I was presenting a session. I wrote a code and suddenly 10 hands went up in the air.  This was a bit surprise to me as I do not know why they all got alerted. I assumed that there should be something wrong with either project, screen or my display. However the real reason was very interesting – I suggest you read the complete blog post to understand this interesting scenario. Error: Deleting Offline Database and Creating the Same Name This is very interesting because once a user deletes the offline database the MDF and LDF file still exists and if the user attempts to create a new database with the same name it will give error. I found this very interesting and the blog explains the concept very quickly. Have you ever faced a similar situation? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Memory Lane, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • SEO one longer page vs. several targeted subpages?

    - by Travis
    We're working on a site and have come to a choice between one long (not too excessive) main page and several subpages. The subpages would have custom metas/titles/h2 tags and the content that corresponds to them. The main page would have all the content and many more inbound links (pagerank) and with longer content encompassing the content we'd put on the shorter pages. Which would be better for seo and traffic in general? Both schemes are very usable to the user although we are a little concerned with duplicate content (the page's header/footer and other elements remain the same)

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  • MySQL Triggers - How to capture external web variables? (eg. web username, ip)

    - by Ken
    Hi, I'm looking to create an audit trail for my PHP web app's database (eg. capture inserts, updates, deletes). MySQL triggers seem to be just the thing -- but how do I capture the IP address and the web username (as opposed to the mysql username, localhost) of the user who invoked the trigger? Thanks so much. -Ken P.S. I'm working with this example code I found: DROP TRIGGER IF EXISTS history_trigger $$ CREATE TRIGGER history_trigger BEFORE UPDATE ON clients FOR EACH ROW BEGIN IF OLD.first_name != NEW.first_name THEN INSERT INTO history_clients ( client_id , col , value , user_id , edit_time ) VALUES ( NEW.client_id, 'first_name', NEW.first_name, NEW.editor_id, NEW.last_mod ); END IF; IF OLD.last_name != NEW.last_name THEN INSERT INTO history_clients ( client_id , col , value , user_id , edit_time ) VALUES ( NEW.client_id, 'last_name', NEW.last_name, NEW.editor_id, NEW.last_mod ); END IF; END; $$

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  • How do I set a ComboBox default *not in the drop down* when a list item begins with the same text as a drop down item?

    - by John Conrad
    Using C#, say you have a ComboBox that has a DropDownStyle set to DropDown (there are items in the drop down but the user can manually enter a value as well). How do you set a default value for the ComboBox that is not in the list of values in the drop down, but begins with text from a possible selection? Normally setting ComboBox.Text works fine, but if there is an item in the drop down that begins with the text you want as the default, it automatically selects the first item in the list that starts with the text. For example: Values in the drop down: c:\program files\ c:\windows\ d:\media\ Default Value Assignment myComboBox.Text = "C:\"; Result Initial value of ComboBox when the form opens is "c:\program files\". So what am I doing wrong? How do I correctly set a default value of an item not in the drop down list that begins with a possible selection?

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  • Reverse-engineer a Javascript object?

    - by TruMan1
    I have a Javascript object that I want to pass in more parameters, but the documentation is non-existant. My only option seems to be to reverse engineer the Javascript object to see what parameters and values I can pass in. For example, I want to see if there is a "zoom" parameter for the object and what values I can pass into the "mapType" parameter: <script type="text/javascript" src="http://maps.google.com/maps?oe=utf-8&amp;file=api&amp;v=2&amp;key=your-gmap-key"></script> <script type="text/javascript" src="https://share.findmespot.com/spot-widget/js/SpotMain.js"></script> <script type="text/javascript"> var widget = new Spot.Ui.LiveWidget({ renderTo: "spot-live-widget", feeds: [ "0Wl3diTJcqqvncI6NNsoqJV5ygrFtQfBB" ], height: 400, width: 500, mapType: "physical" }); </script> <div id="spot-live-widget"/> Any ideas on how to do that?

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  • PHP : How to understand bitmask value of access from ini_get_all function

    - by justjoe
    i'm start to use ini_get_all function to retrieve all configuration option on a shared host server. in the end i got this chunk of array : [allow_call_time_pass_reference] => Array ( [global_value] => 1 [local_value] => 1 [access] => 6 ) [allow_url_fopen] => Array ( [global_value] => 1 [local_value] => 1 [access] => 4 ) The PHP manual just give descripstion : It's possible for a directive to have multiple access levels, which is why access shows the appropriate bitmask values. so, can anybody explain about 'access' ? ans how to understand its bitmask values ?

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