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  • Zend database query result converts column values to null

    - by David Zapata
    Hi again. I am using the next instructions to get some registers from my Database. Create the needed models (from the params module): $obj_paramtype_model = new Params_Model_DbTable_Paramtype(); $obj_param_model = new Params_Model_DbTable_Param(); Getting the available locales from the database // This returns a Zend_Db_Table_Row_Abstract class object $obj_paramtype = $obj_paramtype_model->getParamtypeByValue('available_locales'); // This is a query used to add conditions to the next sentence. This is executed from the Params_Model_DbTable_Param instance class, that depends from Params_Model_DbTable_Paramtype class (reference map and dependentTables arrays are fine in both classes) $obj_select = $this->select()->where('deleted_at IS NULL')->order('name'); // Execute the next query, applying the select restrictions. This returns a Zend_Db_Table_Rowset_Abstract class object. This means "Find Params by Paramtype" $obj_params_rowset = $obj_paramtype->findDependentRowset('Params_Model_DbTable_Param', 'Paramtype', $obj_paramtype); // Here the firebug log displays the queries.... Zend_Registry::get('log')->debug($obj_params_rowset); I have a profiler for all my DB executions from Zend. At this point the log and profiler objects (that includes Firebug writers), shows the executed SQL Queries, and the last line displays the resulting Zend_Db_Table_Rowset_Abstract class object. If I execute the SQL Queries in some MySQL Client, the results are as expected. But the Zend Firebug log writer displays as NULL the column values with latin characters (ñ). In other words, the external SQL client shows es_CO | Español de Colombia and en_US | English of United States but the Query results from Zend displays (and returns) es_CO | null and en_US | English of United States. I've deleted the ñ character from Español de Colombia and the query results are just fine in my Zend Log Firebug screen, and in the final Zend Form element. The MySQL database, tables and columns are in UTF-8 - utf8_unicode_ci collation. All my zend framework pages are in UTF-8 charset. I'm using XAMPP 1.7.1 (PHP 5.2.9, Apache at port 90 and MySQL 5.1.33-community) running on Windows 7 Ultimate; Zend Framework 1.10.1. I'm sorry if there is so much information, but I don't really know why could that happen, so I tryed to provide as much related information as I could to help to find some answer.

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  • How to create Query syntax for multiple DataTable for implementing IN operator of Sql Server

    - by Shantanu Gupta
    I have fetched 3-4 tables by executing my stored procedure. Now they resides on my dataset. I have to maintain this dataset for multiple forms and I am not doing any DML operation on this dataset. Now this dataset contains 4 tables out of which i have to fetch some records to display data. Data stored in tables are in form of one to many relationship. i.e. In case of transactions. N records per record. Then these N records are further mapped to M records of 3rd table. Table 1 MAP_ID GUEST_ID DEPARTMENT_ID PARENT_ID PREFERENCE_ID -------------------- -------------------- -------------------- -------------------- -------------------- 19 61 1 1 5 14 61 1 5 15 15 61 2 4 10 18 61 2 13 23 17 61 2 20 26 16 61 40 40 41 20 62 1 5 14 21 62 1 5 15 22 62 1 6 16 24 62 2 3 4 23 62 2 4 9 27 62 2 13 23 25 62 2 20 24 26 62 2 20 25 28 63 1 1 5 29 63 1 1 8 34 63 1 5 15 30 63 2 4 10 33 63 2 4 11 31 63 2 13 23 32 63 40 40 41 35 65 1 NULL 1 36 65 1 NULL 1 38 68 2 13 22 37 68 2 20 25 39 68 2 23 27 40 92 1 NULL 1 Table 2 Department_ID Department_Name Parent_Id Parent_Name -------------------- ----------------------- --------------- ---------------------------------------------------------------------------------- 1 Food 1, 5, 6 Food, North Indian, South Indian 2 Lodging 3, 4, 13, 20, 23 Room, Floor, Non Air Conditioned, With Balcony, Without Balcony 40 New 40 SubNew TABLE 3 Parent_Id Parent_Name Preference_ID Preference_Name -------------------- ----------------------------------------------- ----------------------- ------------------- NULL NULL NULL NULL 1 Food 5, 8 North Indian, Italian 3 Room 4 Floor 4 Floor 9, 10, 11 First, Second, Third 5 North Indian 14, 15 X, Y 6 South Indian 16 Dosa 13 Non Air Conditioned 22, 23 With Balcony, Without Balcony 20 With Balcony 24, 25, 26 Mountain View, Ocean View, Garden View 23 Without Balcony 27 Mountain View 40 New 41 SubNew I have these 3 tables that are related in some fashion like this. Table 1 will be the master for these 2 tables i.e. table 2 and table 3. I need to query on them as SELECT Department_Id, Department_Name, Parent_Name FROM Table2 WHERE Department_Id in ( SELECT Department_Id FROM Table1 WHERE guest_id=65 ) SELECT Parent_Id, Parent_Name, Preference_Name FROM Table3 WHERE PARENT_ID in ( SELECT parent_id FROM Table1 WHERE guest_id=65 ) Now I need to use these queries on DataTables. So I am using Query Syntax for this and reached up to this point. var dept_list= from dept in DtMapGuestDepartment.AsEnumerable() where dept.Field<long>("PK_GUEST_ID")==long.Parse(63) select dept; This should give me the list of all departments that has guest id =63 Now I want to select all departments_name and parent_name from Table 2 where guest_id=63 i.e. departments that i fetched above. This same case will be followed for Table3. Please suggest how to do this. Thanks for keeping up patience for reading my question.

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  • How to split HTML code with javascript or JQuery

    - by Dean
    Hi I'm making a website using JSP and servlets and I have to now break up a list of radio buttons to insert a textarea and a button. I have got the button and textarea to hide and show when you click on the radio button it shows the text area and button. But this only appears at the top and when there are hundreds on the page this will become awkward so i need a way for it to appear underneath. Here is what my HTML looks like when complied: <form action="addSpotlight" method="POST"> <table> <tr><td><input type="radio" value="29" name="publicationIDs" ></td><td>A System For Dynamic Server Allocation in Application Server Clusters, IEEE International Symposium on Parallel and Distributed Processsing with Applications, 2008</td> </tr> <tr><td><input type="radio" value="30" name="publicationIDs" ></td><td>Analysing BitTorrent's Seeding Strategies, 7th IEEE/IFIP International Conference on Embedded and Ubiquitous Computing (EUC-09), 2009</td> </tr> <tr><td><input type="radio" value="31" name="publicationIDs" ></td><td>The Effect of Server Reallocation Time in Dynamic Resource Allocation, UK Performance Engineering Workshop 2009, 2009</td> </tr> <tr><td><input type="radio" value="32" name="publicationIDs" ></td><td>idk, hello, 1992</td> </tr> <tr><td><input type="radio" value="33" name="publicationIDs" ></td><td>sad, safg, 1992</td> </tr> <div class="abstractWriteup"><textarea name="abstract"></textarea> <input type="submit" value="Add Spotlight"></div> </table> </form> Now here is what my JSP looks like: <form action="addSpotlight" method="POST"> <table> <%int i = 0; while(i<ids.size()){%> <tr><td><input type="radio" value="<%=ids.get(i)%>" name="publicationIDs" ></td><td><%=info.get(i)%></td> </tr> <%i++; }%> <div class="abstractWriteup"><textarea name="abstract"></textarea> <input type="submit" value="Add Spotlight"></div> </table> </form> Thanks in Advance Dean

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  • Android: simple webview code. ERR: Unable to start Activity

    - by vnshetty
    I have following code: public class reader extends Activity { WebView mWebView; String mFilename; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mWebView = (WebView) findViewById(R.id.webView1); setContentView(R.layout.webview); mWebView.loadUrl("http://www.google.com"); } } When I run this, the emulator shows "Sorry:.. mireader Stopped unexpectedly" error.. Why ? DDMS log dump: 03-02 12:25:26.430: INFO/AndroidRuntime(2837): NOTE: attach of thread 'Binder Thread #3' failed 03-02 12:25:26.729: INFO/ActivityManager(72): Start proc com.mireader for activity com.mireader/.reader: pid=2846 uid=10032 gids={3003, 1015} 03-02 12:25:29.621: DEBUG/AndroidRuntime(2846): Shutting down VM 03-02 12:25:29.621: WARN/dalvikvm(2846): threadid=1: thread exiting with uncaught exception (group=0x4001d800) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): FATAL EXCEPTION: main 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mireader/com.mireader.reader}: java.lang.NullPointerException 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.os.Handler.dispatchMessage(Handler.java:99) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.os.Looper.loop(Looper.java:123) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.app.ActivityThread.main(ActivityThread.java:4627) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at java.lang.reflect.Method.invokeNative(Native Method) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at java.lang.reflect.Method.invoke(Method.java:521) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at dalvik.system.NativeStart.main(Native Method) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): Caused by: java.lang.NullPointerException 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at com.mireader.reader.onCreate(reader.java:36) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 03-02 12:25:29.660: ERROR/AndroidRuntime(2846): ... 11 more 03-02 12:25:29.699: WARN/ActivityManager(72): Force finishing activity com.mireader/.reader 03-02 12:25:30.550: WARN/ActivityManager(72): Activity pause timeout for HistoryRecord{44f98868 com.mireader/.reader} 03-02 12:25:33.230: DEBUG/dalvikvm(200): GC_EXPLICIT freed 164 objects / 11312 bytes in 7516ms 03-02 12:25:35.020: INFO/Process(2846): Sending signal. PID: 2846 SIG: 9 03-02 12:25:35.080: WARN/InputManagerService(72): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@44fc35e0 03-02 12:25:35.809: INFO/ActivityManager(72): Process com.mireader (pid 2846) has died. 03-02 12:25:37.960: DEBUG/dalvikvm(320): GC_EXPLICIT freed 83 objects / 4000 bytes in 78ms 03-02 12:25:42.674: WARN/ActivityManager(72): Activity destroy timeout for HistoryRecord{44f98868 com.mireader/.reader}

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  • How i find the greatest number from six or more digit number?

    - by Rajendra Bhole
    Hi,thanks in advance, I have the code in which i want to find out the greatest number from six numbers, the code as follows, if( (pixels->r == 244 || pixels->g == 242 || pixels->b == 245) || (pixels->r == 236 || pixels->g == 235 || pixels->b == 233) || (pixels->r == 250 || pixels->g == 249 || pixels->b == 247) || (pixels->r == 253 || pixels->g == 251 || pixels->b == 230) || (pixels->r == 253 || pixels->g == 246 || pixels->b == 230) || (pixels->r == 254 || pixels->g == 247 || pixels->b == 229)) { numberOfPixels1++; NSLog( @"Pixel data1 %d", numberOfPixels1); } if( (pixels->r == 250 || pixels->g == 240 || pixels->b == 239) ||(pixels->r == 243 || pixels->g == 234 || pixels->b == 229) || (pixels->r == 244 || pixels->g == 241 || pixels->b == 234) || (pixels->r == 251 || pixels->g == 252 || pixels->b == 244) || (pixels->r == 252 || pixels->g == 248 || pixels->b == 237) || (pixels->r == 254 || pixels->g == 246 || pixels->b == 225)) { numberOfPixels2++; NSLog( @"Pixel data2 %d", numberOfPixels2); } if( (pixels->r == 255 || pixels->g == 249 || pixels->b == 225) ||(pixels->r == 255 || pixels->g == 249 || pixels->b == 225) || (pixels->r == 241 || pixels->g == 231 || pixels->b == 195) || (pixels->r == 239 || pixels->g == 226 || pixels->b == 173) || (pixels->r == 224 || pixels->g == 210 || pixels->b == 147) || (pixels->r == 242 || pixels->g == 226 || pixels->b == 151)) { numberOfPixels3++; NSLog( @"Pixel data3 %d", numberOfPixels3); } if( (pixels->r == 235 || pixels->g == 214 || pixels->b == 159) ||(pixels->r == 235 || pixels->g == 217 || pixels->b == 133) || (pixels->r == 227 || pixels->g == 196 || pixels->b == 103) || (pixels->r == 225 || pixels->g == 193 || pixels->b == 106) || (pixels->r == 223 || pixels->g == 193 || pixels->b == 123) || (pixels->r == 222 || pixels->g == 184 || pixels->b == 119)) { numberOfPixels4++; NSLog( @"Pixel data4 %d", numberOfPixels4); } if( (pixels->r == 199 || pixels->g == 164 || pixels->b == 100) ||(pixels->r == 188 || pixels->g == 151 || pixels->b == 98) || (pixels->r == 156 || pixels->g == 107 || pixels->b == 67) || (pixels->r == 142 || pixels->g == 88 || pixels->b == 62) || (pixels->r == 121 || pixels->g == 77 || pixels->b == 48) || (pixels->r == 100 || pixels->g == 49 || pixels->b == 22)) { numberOfPixels5++; NSLog( @"Pixel data5 %d", numberOfPixels5); } if( (pixels->r == 101 || pixels->g == 48 || pixels->b == 32) ||(pixels->r == 96 || pixels->g == 49 || pixels->b == 33) || (pixels->r == 87 || pixels->g == 50 || pixels->b == 41) || (pixels->r == 64 || pixels->g == 32 || pixels->b == 21) || (pixels->r == 49 || pixels->g == 37 || pixels->b == 41) || (pixels->r == 27 || pixels->g == 28 || pixels->b == 46)) { numberOfPixels6++; NSLog( @"Pixel data6 %d", numberOfPixels6); } I have to find out greatest from numberOfPixels1....numberOfPixels6 from above code. There are any optimum way to find out the greatest number?

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  • [How-to] Make a working xml file in php (encoding properly) to export data from online database to i

    - by gotye
    Hey guys, I am trying to make an xml file to export my data from my database to my iphone. Each time I create a new post, I need to execute a php file to create a xml file containing the latest post ;) Okay so far ? :D Here is current php code ... but my nsxmlparser gives me an error code (33 - String is not started). I have no idea what kind of php functions I have to use ... <?php // Èdition du dÈbut du fichier XML $xml .= '<?xml version=\"1.0\" encoding=\"UTF-8\"?>'; $sml .= '<channel>'; $xml .= '<title>Infonul</title>'; $xml .= '<link>aaa</link>'; $xml .= '<description>aaa</description>'; // connexion a la base (mettre ‡ jour le mdp) $connect = mysql_connect('...-12','...','...'); /* selection de la base de donnÈe mysql */ mysql_select_db('...'); // selection des 20 derniËres news $res=mysql_query("SELECT u.display_name as author,p.post_date as date,p.comment_count as commentCount, p.post_content as content,p.post_title as title FROM wp_posts p, wp_users u WHERE p.post_status = 'publish' and p.post_type = 'post' and p.post_author = u.id ORDER BY p.id DESC LIMIT 0,20"); // extraction des informations et ajout au contenu while($tab=mysql_fetch_array($res)){ $title=$tab[title]; $author=$tab[author]; $content=$tab[content]; //html stuff $commentCount=$tab[commentCount]; $date=$tab[date]; $xml .= '<item>'; $xml .= '<title>'.$title.'</title>'; $xml .= '<content><![CDATA['.$content.']]></content>'; $xml .= '<date>'.$date.'</date>'; $xml .= '<author>'.$author.'</author>'; $xml .= '<commentCount>'.$commentCount.'</commentCount>'; $xml .= '</item>'; } // Èdition de la fin du fichier XML $xml .= '</channel>'; $xml = utf8_encode($xml); echo $xml; // Ècriture dans le fichier if ($fp = fopen("20news.xml",'w')) { fputs($fp,$xml); fclose($fp); } //mysql_close(); ?> I noticed a few things when i open 20news.xml in my browser : I got squares instead of single quotes ... I can't see <[CDATA[ but ]] is clearly visible ... why ?!? Thanks for any input ;) Gotye.

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  • live search with Jquery

    - by user272899
    Hello! I am trying to implement a live search on my site. I am using a script somebody has already created. http://www.reynoldsftw.com/2009/03/live-mysql-database-search-with-jquery/ I have got the Jquery, css, html working correctly but am having troubles with the php. I need to change it to contain my database information but everytime I do I recieve an error: Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in C:\wamp\www\search.php on line 33 These are the details of my database: database name: development table name: links Columns: id, sitename, siteurl, description, category This is the php script <?php $dbhost = "localhost"; $dbuser = "root"; $dbpass = "password"; $dbname = "links"; $conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ('Error connecting to mysql'); mysql_select_db($dbname); if(isset($_GET['query'])) { $query = $_GET['query']; } else { $query = ""; } if(isset($_GET['type'])) { $type = $_GET['type']; } else { $query = "count"; } if($type == "count") { $sql = mysql_query("SELECT count(url_id) FROM urls WHERE MATCH(url_url, url_title, url_desc) AGAINST('$query' IN BOOLEAN MODE)"); $total = mysql_fetch_array($sql); $num = $total[0]; echo $num; } if($type == "results") { $sql = mysql_query("SELECT url_url, url_title, url_desc FROM urls WHERE MATCH(url_url, url_title, url_desc) AGAINST('$query' IN BOOLEAN MODE)"); while($array = mysql_fetch_array($sql)) { $url_url = $array['url_url']; $url_title = $array['url_title']; $url_desc = $array['url_desc']; echo "<div class=\"url-holder\"><a href=\"" . $url_url . "\" class=\"url-title\" target=\"_blank\">" . $url_title . "</a> <div class=\"url-desc\">" . $url_desc . "</div></div>"; } } mysql_close($conn); ?> Can anybody help me input this database info correctly? I have tried many times but keep getting an error. Thanks in advance.

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  • SET game odds simulation (MATLAB)

    - by yuk
    Here is an interesting problem for your weekend. :) I recently find the great card came - SET. Briefly, there are 81 cards with the four features: symbol (oval, squiggle or diamond), color (red, purple or green), number (one, two or three) or shading (solid, striped or open). The task is to find (from selected 12 cards) a SET of 3 cards, in which each of the four features is either all the same on each card or all different on each card (no 2+1 combination). In my free time I've decided to code it in MATLAB to find a solution and to estimate odds of having a set in randomly selected cards. Here is the code: %% initialization K = 12; % cards to draw NF = 4; % number of features (usually 3 or 4) setallcards = unique(nchoosek(repmat(1:3,1,NF),NF),'rows'); % all cards: rows - cards, columns - features setallcomb = nchoosek(1:K,3); % index of all combinations of K cards by 3 %% test tic NIter=1e2; % number of test iterations setexists = 0; % test results holder % C = progress('init'); % if you have progress function from FileExchange for d = 1:NIter % C = progress(C,d/NIter); % cards for current test setdrawncardidx = randi(size(setallcards,1),K,1); setdrawncards = setallcards(setdrawncardidx,:); % find all sets in current test iteration for setcombidx = 1:size(setallcomb,1) setcomb = setdrawncards(setallcomb(setcombidx,:),:); if all(arrayfun(@(x) numel(unique(setcomb(:,x))), 1:NF)~=2) % test one combination setexists = setexists + 1; break % to find only the first set end end end fprintf('Set:NoSet = %g:%g = %g:1\n', setexists, NIter-setexists, setexists/(NIter-setexists)) toc 100-1000 iterations are fast, but be careful with more. One million iterations takes about 15 hours on my home computer. Anyway, with 12 cards and 4 features I've got around 13:1 of having a set. This is actually a problem. The instruction book said this number should be 33:1. And it was recently confirmed by Peter Norvig. He provides the Python code, but I didn't test it. So can you find an error?

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  • Mailer issue, PHP values do not change

    - by Roland
    I have a script that runs once every month and send out stats to clients, now the stats are displayed in normal text and in the shape of a Pie Graph, now if I run the script mannually from the command line all info on the graphs are correct, but when the cron job executes the script the values for the first client are displaying on the graphs of all clients. but the text is correct. I'm using domDocument to build the HTML and PHPMailer to send out the email with the Graphs embedded into the mail also use pChart to generate the Graph My code that generates the PIE graph is below include_once "pChart.1.26e/pChart/pData.class"; include_once "pChart.1.26e/pChart/pChart.class"; // Dataset definition unset($DataSet); $DataSet = new pData; $DataSet->AddPoint(array($data['total_clicks'],$remaining),"Serie1"); if($remaining < 0){ $DataSet->AddPoint(array("Clicks delivered todate","Clicks remaining = 0"),"Serie2"); }else{ $DataSet->AddPoint(array("Clicks delivered todate","Clicks remaining"),"Serie2"); } $DataSet->AddAllSeries(); $DataSet->SetAbsciseLabelSerie("Serie2"); // Initialise the graph $pie = new pChart(492,292); $pie->drawBackground(255,255,254); $pie->LineWidth = 1.1; $pie->Values = 2; // $pie->drawRoundedRectangle(5,5,375,195,5,230,230,230); //$pie->drawRectangle(0,0,480,288,169,169,169); $pie->drawRectangle(5,5,487,287,169,169,169); $pie->loadColorPalette('pChart.1.26e/color/tones-3.txt',','); // Draw the pie chart $pie->setFontProperties("pChart.1.26e/Fonts/calibrib.ttf",18); $pie->drawTitle(140,33,"Campaign Overview",0,0,0); $pie->setFontProperties("pChart.1.26e/Fonts/calibrib.ttf",11); $pie->drawTitle(343,125,"Total clicks : ".$total_clicks,0,0,0); $pie->setFontProperties("pChart.1.26e/Fonts/calibri.ttf",10); if($remaining < 0){ $pie->setFontProperties("pChart.1.26e/Fonts/calibrib.ttf",10); $pie->drawTitle(260,250,"Campaign over-delivered by ".substr($remaining,1)." clicks",205,53,53); $pie->setFontProperties("pChart.1.26e/Fonts/calibri.ttf",10); } $pie->drawPieLegend(328,140,$DataSet->GetData(),$DataSet->GetDataDescription(),255,255,255); $pie->drawPieGraph($DataSet->GetData(),$DataSet->GetDataDescription(),170,150,130,PIE_VALUE,FALSE,50,30,0); $pie->Render("generated/3dpie.png"); unset($pie); unset($DataSet); $mail->AddEmbeddedImage("/var/www/html/stats/generated/3dpie.png","5"); I just can't understand why this only happens when the cronjob runs?

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  • ArithmeticException thrown during BigDecimal.divide

    - by polygenelubricants
    I thought java.math.BigDecimal is supposed to be The Answer™ to the need of performing infinite precision arithmetic with decimal numbers. Consider the following snippet: import java.math.BigDecimal; //... final BigDecimal one = BigDecimal.ONE; final BigDecimal three = BigDecimal.valueOf(3); final BigDecimal third = one.divide(three); assert third.multiply(three).equals(one); // this should pass, right? I expect the assert to pass, but in fact the execution doesn't even get there: one.divide(three) causes ArithmeticException to be thrown! Exception in thread "main" java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result. at java.math.BigDecimal.divide It turns out that this behavior is explicitly documented in the API: In the case of divide, the exact quotient could have an infinitely long decimal expansion; for example, 1 divided by 3. If the quotient has a non-terminating decimal expansion and the operation is specified to return an exact result, an ArithmeticException is thrown. Otherwise, the exact result of the division is returned, as done for other operations. Browsing around the API further, one finds that in fact there are various overloads of divide that performs inexact division, i.e.: final BigDecimal third = one.divide(three, 33, RoundingMode.DOWN); System.out.println(three.multiply(third)); // prints "0.999999999999999999999999999999999" Of course, the obvious question now is "What's the point???". I thought BigDecimal is the solution when we need exact arithmetic, e.g. for financial calculations. If we can't even divide exactly, then how useful can this be? Does it actually serve a general purpose, or is it only useful in a very niche application where you fortunately just don't need to divide at all? If this is not the right answer, what CAN we use for exact division in financial calculation? (I mean, I don't have a finance major, but they still use division, right???).

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  • Django - I got TemplateSyntaxError when I try open the admin page. (http://DOMAIN_NAME/admin)

    - by user140827
    I use grappelly plugin. When I try open the admin page (/admin) I got TemplateSyntaxError. It says 'get_generic_relation_list' is invalid block tag. TemplateSyntaxError at /admin/ Invalid block tag: 'get_generic_relation_list', expected 'endblock' Request Method: GET Request URL: http://DOMAIN_NAME/admin/ Django Version: 1.4 Exception Type: TemplateSyntaxError Exception Value: Invalid block tag: 'get_generic_relation_list', expected 'endblock' Exception Location: /opt/python27/django/1.4/lib/python2.7/site-packages/django/template/base.py in invalid_block_tag, line 320 Python Executable: /opt/python27/django/1.4/bin/python Python Version: 2.7.0 Python Path: ['/home/vhosts/DOMAIN_NAME/httpdocs/media', '/home/vhosts/DOMAIN_NAME/private/new_malinnikov/lib', '/home/vhosts/DOMAIN_NAME/httpdocs/', '/home/vhosts/DOMAIN_NAME/private/new_malinnikov', '/home/vhosts/DOMAIN_NAME/private/new_malinnikov', '/home/vhosts/DOMAIN_NAME/private', '/opt/python27/django/1.4', '/home/vhosts/DOMAIN_NAME/httpdocs', '/opt/python27/django/1.4/lib/python2.7/site-packages/setuptools-0.6c12dev_r88846-py2.7.egg', '/opt/python27/django/1.4/lib/python2.7/site-packages/pip-0.8.1-py2.7.egg', '/opt/python27/django/1.4/lib/python27.zip', '/opt/python27/django/1.4/lib/python2.7', '/opt/python27/django/1.4/lib/python2.7/plat-linux2', '/opt/python27/django/1.4/lib/python2.7/lib-tk', '/opt/python27/django/1.4/lib/python2.7/lib-old', '/opt/python27/django/1.4/lib/python2.7/lib-dynload', '/opt/python27/lib/python2.7', '/opt/python27/lib/python2.7/plat-linux2', '/opt/python27/lib/python2.7/lib-tk', '/opt/python27/django/1.4/lib/python2.7/site-packages', '/opt/python27/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg', '/opt/python27/lib/python2.7/site-packages/flup-1.0.3.dev_20100525-py2.7.egg', '/opt/python27/lib/python2.7/site-packages/virtualenv-1.5.1-py2.7.egg', '/opt/python27/lib/python2.7/site-packages/SQLAlchemy-0.6.4-py2.7.egg', '/opt/python27/lib/python2.7/site-packages/SQLObject-0.14.1-py2.7.egg', '/opt/python27/lib/python2.7/site-packages/FormEncode-1.2.3dev-py2.7.egg', '/opt/python27/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-x86_64.egg', '/opt/python27/lib/python2.7/site-packages/psycopg2-2.2.2-py2.7-linux-x86_64.egg', '/opt/python27/lib/python2.7/site-packages/pysqlite-2.6.0-py2.7-linux-x86_64.egg', '/opt/python27/lib/python2.7/site-packages', '/opt/python27/lib/python2.7/site-packages/PIL'] Server time: ???, 7 ??? 2012 04:19:42 +0700 Error during template rendering In template /home/vhosts/DOMAIN_NAME/httpdocs/templates/grappelli/admin/base.html, error at line 28 Invalid block tag: 'get_generic_relation_list', expected 'endblock' 18 <!--[if lt IE 8]> 19 <script src="http://ie7-js.googlecode.com/svn/version/2.0(beta3)/IE8.js" type="text/javascript"></script> 20 <![endif]--> 21 {% block javascripts %} 22 <script type="text/javascript" src="{% admin_media_prefix %}jquery/jquery-1.3.2.min.js"></script> 23 <script type="text/javascript" src="{% admin_media_prefix %}js/admin/Bookmarks.js"></script> 24 <script type="text/javascript"> 25 // Admin URL 26 var ADMIN_URL = "{% get_admin_url %}"; 27 // Generic Relations 28 {% get_generic_relation_list %} 29 // Get Bookmarks 30 $(document).ready(function(){ 31 $.ajax({ 32 type: "GET", 33 url: '{% url grp_bookmark_get %}', 34 data: "path=" + escape(window.location.pathname + window.location.search), 35 dataType: "html", 36 success: function(data){ 37 $('ul#bookmarks').replaceWith(data); 38 }

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  • content show problem

    - by nonab
    I still fight with some jquery scripts:) With my first problem Jens Fahnenbruck helped me here: http://stackoverflow.com/questions/3021476/problem-with-hide-show-in-jquery thanks:) Now i added another fancy thing - jquery tabs Made a few modifications and it works like this: When you click on tab and it loads different main image for every tab. The problem is that i used $(document).ready(function() to handle those image changes. When i click any of 2x2 box images (on any tab) it will permanently change the image on the right and when i click on tabs it won't work like it did at the beginning. online example: http://rarelips.ayz.pl/testy/2/ code: <style type="text/css"> body { font: Arial, Helvetica, sans-serif normal 10px; margin: 0; padding: 0; } * {margin: 0; padding: 0;} img {border: none;} .container { height: 500px; width: 1000px; margin: -180px 0 0 -450px; top: 50%; left: 50%; position: absolute; } ul.thumb { float: left; list-style: none; margin: 0; padding: 10px; width: 360px; } ul.thumb li { margin: 0; padding: 5px; float: left; position: relative; width: 165px; height: 165px; } ul.thumb li img { width: 150px; height: 150px; border: 1px solid #ddd; padding: 10px; background: #f0f0f0; position: absolute; left: 0; top: 0; -ms-interpolation-mode: bicubic; } ul.thumb li img.hover { background:url(thumb_bg.png) no-repeat center center; border: none; } #main_view { float: left; padding: 9px 0; margin-left: -10px; } #main_view2 { float: left; padding: 9px 0; margin-left: -10px; } #main_view3 { float: left; padding: 9px 0; margin-left: -10px; } #main_view4 { float: left; padding: 9px 0; margin-left: -10px; } #wiecej { float: right; padding: 9px 0; margin-right: 20px; } .demo-show { width: 350px; margin: 1em .5em; } .demo-show h3 { margin: 0; padding: .25em; background: #bfcd93; border-top: 1px solid #386785; border-bottom: 1px solid #386785; } .demo-show div { padding: .5em .25em; } /* styl do tabek */ ul.tabs { margin: 0; padding: 0; float: left; list-style: none; height: 32px; /*--Set height of tabs--*/ border-bottom: 1px solid #999; border-left: 1px solid #999; width: 100%; } ul.tabs li { float: left; margin: 0; padding: 0; height: 31px; /*--Subtract 1px from the height of the unordered list--*/ line-height: 31px; /*--Vertically aligns the text within the tab--*/ border: 1px solid #999; border-left: none; margin-bottom: -1px; /*--Pull the list item down 1px--*/ overflow: hidden; position: relative; background: #e0e0e0; } ul.tabs li a { text-decoration: none; color: #000; display: block; font-size: 1.2em; padding: 0 20px; border: 1px solid #fff; /*--Gives the bevel look with a 1px white border inside the list item--*/ outline: none; } ul.tabs li a:hover { background: #ccc; } html ul.tabs li.active, html ul.tabs li.active a:hover { /*--Makes sure that the active tab does not listen to the hover properties--*/ background: #fff; border-bottom: 1px solid #fff; /*--Makes the active tab look like it's connected with its content--*/ } .tab_container { border: 1px solid #999; border-top: none; overflow: hidden; clear: both; float: left; width: 100%; background: #fff; } .tab_content { padding: 20px; font-size: 1.2em; } </style> <script type="text/javascript" src="index_pliki/jquery-latest.js"></script> <script type="text/javascript"> $(document).ready(function(){ //Larger thumbnail preview $("ul.thumb li").hover(function() { $(this).css({'z-index' : '10'}); $(this).find('img').addClass("hover").stop() .animate({ marginTop: '-110px', marginLeft: '-110px', top: '50%', left: '50%', width: '200px', height: '200px', padding: '5px' }, 200); } , function() { $(this).css({'z-index' : '0'}); $(this).find('img').removeClass("hover").stop() .animate({ marginTop: '0', marginLeft: '0', top: '0', left: '0', width: '150px', height: '150px', padding: '10px' }, 400); }); //Swap Image on Click $("ul.thumb li a").click(function() { var mainImage = $(this).attr("href"); //Find Image Name $("#main_view img").attr({ src: mainImage }); $("#main_view2 img").attr({ src: mainImage }); $("#main_view3 img").attr({ src: mainImage }); $("#main_view4 img").attr({ src: mainImage }); return false; }); }); </script> <script type="text/javascript"> $(document).ready(function() { $("#main_view img").attr({ src: './index_pliki/max1.jpg' }); $("#slickbox div[data-id=" + '01' + "].slickbox").show('slow'); $('a.slick-toggle').click(function() { var dataID = $(this).attr("data-id"); $('#slickbox div.slickbox').hide(); $("#slickbox div[data-id=" + dataID + "].slickbox").show('slow'); return false; }); }); </script> <script type="text/javascript"> $(document).ready(function() { $("#main_view2 img").attr({ src: './index_pliki/max2.jpg' }); $("#slickbox2 div[data-id=" + '11' + "].slickbox2").show('slow'); $('a.slick-toggle').click(function() { var dataID = $(this).attr("data-id"); $('#slickbox2 div.slickbox2').hide(); $("#slickbox2 div[data-id=" + dataID + "].slickbox2").show('slow'); return false; }); }); </script> <script type="text/javascript"> $(document).ready(function() { $("#main_view3 img").attr({ src: './index_pliki/max3.jpg' }); $("#slickbox3 div[data-id=" + '21' + "].slickbox3").show('slow'); $('a.slick-toggle').click(function() { var dataID = $(this).attr("data-id"); $('#slickbox3 div.slickbox3').hide(); $("#slickbox3 div[data-id=" + dataID + "].slickbox3").show('slow'); return false; }); }); </script> <script type="text/javascript"> $(document).ready(function() { $("#main_view4 img").attr({ src: './index_pliki/max4.jpg' }); $("#slickbox4 div[data-id=" + '31' + "].slickbox4").show('slow'); $('a.slick-toggle').click(function() { var dataID = $(this).attr("data-id"); $('#slickbox4 div.slickbox4').hide(); $("#slickbox4 div[data-id=" + dataID + "].slickbox4").show('slow'); return false; }); }); </script> <script type ="text/javascript"> $(document).ready(function() { //When page loads... $(".tab_content").hide(); //Hide all content $("ul.tabs li:first").addClass("active").show(); //Activate first tab $(".tab_content:first").show(); //Show first tab content //On Click Event $("ul.tabs li").click(function() { $("ul.tabs li").removeClass("active"); //Remove any "active" class $(this).addClass("active"); //Add "active" class to selected tab $(".tab_content").hide(); //Hide all tab content var activeTab = $(this).find("a").attr("href"); //Find the href attribute value to identify the active tab + content $(activeTab).fadeIn(); //Fade in the active ID content return false; }); }); </script> </head> <body> <div class="container"> <ul class="tabs"> <li><a href="#tab1">1</a></li> <li><a href="#tab2">2</a></li> <li><a href="#tab3">3</a></li> <li><a href="#tab4">4</a></li> </ul> <div class="tab_container"> <div id="tab1" class="tab_content"> <!--Content--> <ul class="thumb"> <li><a class="slick-toggle" href="./index_pliki/max1.jpg" data-id="01"><img src="./index_pliki/min1.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max2.jpg" data-id="02"><img src="./index_pliki/min2.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max3.jpg" data-id="03"><img src="./index_pliki/min3.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max4.jpg" data-id="04"><img src="./index_pliki/min4.jpg" alt="" /></a></li> </ul> <div id="main_view"> <a href="index.htm"><img src="index_pliki/max1.jpg" alt=""/></a> <small style="float: right; color: rgb(153, 153, 153);"> </small> </div> <div id="wiecej"> <div id="slickbox"> <div id="someOtherID" class="slickbox" data-id="01" style="display: none;"> 1.1 </div> <div id="someOtherID" class="slickbox" data-id="02" style="display: none;"> 1.2 </div> <div id="someOtherID" class="slickbox" data-id="03" style="display: none;"> 1.3 </div> <div id="someOtherID" class="slickbox" data-id="04" style="display: none;"> 1.4 </div> <!-- <a href="#" id="slick-show"><img src="http://www.amptech.pl/images/more.jpg" alt="Zobacz wiecej" /></a> <a href="#" id="slick-hide"><img src="http://www.amptech.pl/images/online.jpg" alt="Zobacz wiecej" /></a>&nbsp;&nbsp; --> </div> </div> </div> <!-- tutaj wklejalem reszte --> <div id="tab2" class="tab_content"> <!--Content--> <ul class="thumb"> <li><a class="slick-toggle" href="./index_pliki/max4.jpg" data-id="11"><img src="./index_pliki/min4.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max3.jpg" data-id="12"><img src="./index_pliki/min3.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max2.jpg" data-id="13"><img src="./index_pliki/min2.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max1.jpg" data-id="14"><img src="./index_pliki/min1.jpg" alt="" /></a></li> </ul> <div id="main_view2"> <a href="index.htm"><img src="index_pliki/max1.jpg" alt=""/></a> <small style="float: right; color: rgb(153, 153, 153);"> </small> </div> <div id="wiecej"> <div id="slickbox2"> <div id="someOtherID" class="slickbox2" data-id="11" style="display: none;"> 2.1 </div> <div id="someOtherID" class="slickbox2" data-id="12" style="display: none;"> 2.2 </div> <div id="someOtherID" class="slickbox2" data-id="13" style="display: none;"> 2.3 </div> <div id="someOtherID" class="slickbox2" data-id="14" style="display: none;"> 2.4 </div> </div> </div> </div> <div id="tab3" class="tab_content"> <ul class="thumb"> <li><a class="slick-toggle" href="./index_pliki/max4.jpg" data-id="21"><img src="./index_pliki/min4.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max3.jpg" data-id="22"><img src="./index_pliki/min3.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max2.jpg" data-id="23"><img src="./index_pliki/min2.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max1.jpg" data-id="24"><img src="./index_pliki/min1.jpg" alt="" /></a></li> </ul> <div id="main_view3"> <a href="index.htm"><img src="index_pliki/max1.jpg" alt=""/></a> <small style="float: right; color: rgb(153, 153, 153);"> </small> </div> <div id="wiecej"> <div id="slickbox3"> <div id="someOtherID" class="slickbox3" data-id="21" style="display: none;"> 3.1 </div> <div id="someOtherID" class="slickbox3" data-id="22" style="display: none;"> 3.2 </div> <div id="someOtherID" class="slickbox3" data-id="23" style="display: none;"> 3.3 </div> <div id="someOtherID" class="slickbox3" data-id="24" style="display: none;"> 3.4 </div> </div> </div> </div> <div id="tab4" class="tab_content"> <ul class="thumb"> <li><a class="slick-toggle" href="./index_pliki/max4.jpg" data-id="31"><img src="./index_pliki/min4.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max3.jpg" data-id="32"><img src="./index_pliki/min3.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max2.jpg" data-id="33"><img src="./index_pliki/min2.jpg" alt="" /></a></li> <li><a class="slick-toggle" href="./index_pliki/max1.jpg" data-id="34"><img src="./index_pliki/min1.jpg" alt="" /></a></li> </ul> <div id="main_view4"> <a href="index.htm"><img src="index_pliki/max1.jpg" alt=""/></a> <small style="float: right; color: rgb(153, 153, 153);"> </small> </div> <div id="wiecej"> <div id="slickbox4"> <div id="someOtherID" class="slickbox4" data-id="31" style="display: none;"> 4.1 </div> <div id="someOtherID" class="slickbox4" data-id="32" style="display: none;"> 4.2 </div> <div id="someOtherID" class="slickbox4" data-id="33" style="display: none;"> 4.3 </div> <div id="someOtherID" class="slickbox4" data-id="34" style="display: none;"> 4.4 </div> </div> </div> </div> </div> </div>

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  • QValidator for hex input

    - by Evan Teran
    I have a Qt widget which should only accept a hex string as input. It is very simple to restrict the input characters to [0-9A-Fa-f], but I would like to have it display with a delimiter between "bytes" so for example if the delimiter is a space, and the user types 0011223344 I would like the line edit to display 00 11 22 33 44 Now if the user presses the backspace key 3 times, then I want it to display 00 11 22 3. I almost have what i want, so far there is only one subtle bug involving using the delete key to remove a delimiter. Does anyone have a better way to implement this validator? Here's my code so far: class HexStringValidator : public QValidator { public: HexStringValidator(QObject * parent) : QValidator(parent) {} public: virtual void fixup(QString &input) const { QString temp; int index = 0; // every 2 digits insert a space if they didn't explicitly type one Q_FOREACH(QChar ch, input) { if(std::isxdigit(ch.toAscii())) { if(index != 0 && (index & 1) == 0) { temp += ' '; } temp += ch.toUpper(); ++index; } } input = temp; } virtual State validate(QString &input, int &pos) const { if(!input.isEmpty()) { // TODO: can we detect if the char which was JUST deleted // (if any was deleted) was a space? and special case this? // as to not have the bug in this case? const int char_pos = pos - input.left(pos).count(' '); int chars = 0; fixup(input); pos = 0; while(chars != char_pos) { if(input[pos] != ' ') { ++chars; } ++pos; } // favor the right side of a space if(input[pos] == ' ') { ++pos; } } return QValidator::Acceptable; } }; For now this code is functional enough, but I'd love to have it work 100% as expected. Obviously the ideal would be the just separate the display of the hex string from the actual characters stored in the QLineEdit's internal buffer but I have no idea where to start with that and I imagine is a non-trivial undertaking. In essence, I would like to have a Validator which conforms to this regex: "[0-9A-Fa-f]( [0-9A-Fa-f])*" but I don't want the user to ever have to type a space as delimiter. Likewise, when editing what they types, the spaces should be managed implicitly.

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  • How do you set the ZIndex on a TabItem?

    - by CC Inc
    I am wanting my TabItems to be positioned in between a border to achieve a "binder" affect, like this: However, I cannot seem to achieve this affect using ZIndex with my borders and each TabItem item. Currently, I get this result: Using this code: <Border CornerRadius="40,40,0,0" Background="Orange" Margin="8,31,2,21" Grid.RowSpan="4" Panel.ZIndex="-3" ></Border> <Border CornerRadius="40,40,0,0" Background="Red" Margin="6,29,4,23" Grid.RowSpan="4" Panel.ZIndex="-1"></Border> <Border CornerRadius="40,40,0,0" Background="Yellow" Margin="3,26,7,26" Grid.RowSpan="4" Panel.ZIndex="1"></Border> <Border CornerRadius="40,40,0,0" Background="DarkRed" Margin="1,23,9,29" Grid.RowSpan="4" Panel.ZIndex="3"></Border> <Border CornerRadius="40,40,0,0" Background="OrangeRed" Margin="-2,19,12,33" Grid.RowSpan="4" Name="border1" Panel.ZIndex="5"></Border> <TabControl Name="tabControl1" TabStripPlacement="Bottom" Background="Transparent" Margin="-2,32,15,6" Grid.RowSpan="4" BorderThickness="0"> <TabItem Name="tabItem1" Margin="0,0,0,1" Panel.ZIndex="4"> <TabItem.Header> <TextBlock> Main</TextBlock> </TabItem.Header> </TabItem> <TabItem Name="tabItem2" Panel.ZIndex="5"> <TabItem.Header> <TextBlock Height="13" Width="91"> Internet Explorer</TextBlock> </TabItem.Header> </TabItem> <TabItem Name="tabItem3" Panel.ZIndex="0"> <TabItem.Header> <TextBlock> Firefox</TextBlock> </TabItem.Header> </TabItem> <TabItem Name="tabItem4" Panel.ZIndex="-2"> <TabItem.Header> <TextBlock> Chrome</TextBlock> </TabItem.Header> </TabItem> <TabItem Name="tabItem5" Panel.ZIndex="-4"> <TabItem.Header> <TextBlock> Opera</TextBlock> </TabItem.Header> </TabItem> </TabControl> However, this does not achieve the desired affect. How can I do this in WPF? Is TabControl the best choice?

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  • Isn't the C++ standard library backward-compatible?

    - by Chris Metzler
    Hi. I'm working on a 64-bit Linux system, trying to build some code that depends on third-party libraries for which I have binaries. During linking, I get a stream of undefined reference errors for one of the libraries, indicating that the linker couldn't resolve references to standard C++ functions/classes, e.g.: librxio.a(EphReader.o): In function `gpstk::EphReader::read_fic_data(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': EphReader.cpp:(.text+0x27c): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, long)' EphReader.cpp:(.text+0x4e8): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, long)' I'm not really a C++ programmer, but this looks to me like it can't find the standard library. Doing some more research, I got the following when I looked at librxio's dependency for the standard library: $ ldd librxio.so.16.0 ./librxio.so.16.0: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by ./librxio.so.16.0) libm.so.6 => /lib64/libm.so.6 (0x00002aaaaad45000) libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00002aaaaafc8000) libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002aaaab2c8000) libc.so.6 => /lib64/libc.so.6 (0x00002aaaab4d7000) /lib64/ld-linux-x86-64.so.2 (0x0000555555554000) So I read that as saying that librxio (one of the third-party libraries) requires at least v3.4.9 of the standard library. But the version I have installed is 4.1.2: $ rpm -qa | grep libstdc compat-libstdc++-33-3.2.3-61.x86_64 libstdc++-devel-4.1.2-14.el5.i386 libstdc++-devel-4.1.2-14.el5.x86_64 libstdc++-4.1.2-14.el5.x86_64 libstdc++-4.1.2-14.el5.i386 Shouldn't this work? The shared object major number is 6, same as for v3.4.9. At this level, shouldn't this be backward compatible? It seems like the third-party library is looking for an earlier version of the standard library than what I have installed; but isn't there backward compatibility between versions with the same major number for the shared library? Again, I'm not really a C++ programmer; but I don't see what the problem is. Any advice greatly appreciated. Thanks.

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  • XML - how to use namespace prefixes

    - by Asbie
    I have this XML at http://localhost/file.xml: <?xml version="1.0" encoding="utf-8"?> <val:Root xmlns:val="http://www.hw-group.com/XMLSchema/ste/values.xsd"> <Agent> <Version>2.0.3</Version> <XmlVer>1.01</XmlVer> <DeviceName>HWg-STE</DeviceName> <Model>33</Model> <vendor_id>0</vendor_id> <MAC>00:0A:DA:01:DA:DA</MAC> <IP>192.168.1.1</IP> <MASK>255.255.255.0</MASK> <sys_name>HWg-STE</sys_name> <sys_location/> <sys_contact> HWg-STE:For more information try http://www.hw-group.com </sys_contact> </Agent> <SenSet> <Entry> <ID>215</ID> <Name>Home</Name> <Units>C</Units> <Value>27.7</Value> <Min>10.0</Min> <Max>40.0</Max> <Hyst>0.0</Hyst> <EmailSMS>1</EmailSMS> <State>1</State> </Entry> </SenSet> </val:Root> I am trying to read this from my c# code: static void Main(string[] args) { var xmlDoc = new XmlDocument(); xmlDoc.Load("http://localhost/file.xml"); XmlElement root = xmlDoc.DocumentElement; // Create an XmlNamespaceManager to resolve the default namespace. XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDoc.NameTable); nsmgr.AddNamespace("val", "http://www.hw-group.com/XMLSchema/ste/values.xsd"); XmlNodeList nodes = root.SelectNodes("/val:SenSet/val:Entry"); foreach (XmlNode node in nodes) { string name = node["Name"].InnerText; string value = node["Value"].InnerText; Console.Write("name\t{0}\value\t{1}", name, value); } Console.ReadKey(); } } Problem is that the node is empty. I understand this is a common newbie problem when reading XML, still not able to solve what I am doing wrong, probably something with the Namespace "val" ?

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  • Loading jar file using JCL(JarClassLoader ) : classpath in manifest is ignored ..

    - by Xinus
    I am trying to load jar file using JCL using following code FileInputStream fis = new FileInputStream(new File( "C:\\Users\\sunils\\glassfish-tests\\working\\test.jar") ); JarClassLoader jc = new JarClassLoader( ); jc.add(fis); Class main = jc.loadClass( "highmark.test.Main" ); String[] str={}; main.getMethod("test").invoke(null);//.getDeclaredMethod("main",String[].class).invoke(null,str); fis.close(); But when I try to run this program I get Exception as Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at Main.main(Main.java:21) Caused by: java.lang.RuntimeException: Embedded startup not found, classpath is probably incomplete at org.glassfish.api.embedded.Server.<init>(Server.java:292) at org.glassfish.api.embedded.Server.<init>(Server.java:75) at org.glassfish.api.embedded.Server$Builder.build(Server.java:185) at org.glassfish.api.embedded.Server$Builder.build(Server.java:167) at highmark.test.Main.test(Main.java:33) ... 5 more According to this it is not able to locate class, But when I run the jar file explicitly it runs fine. It seems like JCL is ignoring other classes present in the jar file, MANIFEST.MF file in jar file shows: Manifest-Version: 1.0 Class-Path: . Main-Class: highmark.test.Main It seems to be ignoring Class-Path: . , This jar file runs fine when I run it using Java explicitly, This is just a test, in reality this jar file is coming as a InputStream and it cannot be stored in filesystem, How can I overcome this problem , Is there any workaround ? Thanks for any help . UNDATE: Here is a jar Main class : package highmark.test; import org.glassfish.api.embedded.*; import java.io.*; import org.glassfish.api.deployment.*; import com.sun.enterprise.universal.io.FileUtils; public class Main { public static void main(String[] args) throws IOException, LifecycleException, ClassNotFoundException { test(); } public static void test() throws IOException, LifecycleException, ClassNotFoundException{ Server.Builder builder = new Server.Builder("test"); Server server = builder.build(); server.createPort(8080); ContainerBuilder containerBuilder = server.createConfig(ContainerBuilder.Type.web); server.addContainer(containerBuilder); server.start(); File war=new File("C:\\Users\\sunils\\maventests\\simple-webapp\\target\\simple-webapp.war");//(File) inputStream.readObject(); EmbeddedDeployer deployer = server.getDeployer(); DeployCommandParameters params = new DeployCommandParameters(); params.contextroot = "simple"; deployer.deploy(war, params); } }

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  • Python and C++ Sockets converting packet data

    - by yeus
    First of all, to clarify my goal: There exist two programs written in C in our laboratory. I am working on a Proxy Server (bidirectional) for them (which will also mainpulate the data). And I want to write that proxy server in Python. It is important to know that I know close to nothing about these two programs, I only know the definition file of the packets. Now: assuming a packet definition in one of the C++ programs reads like this: unsigned char Packet[0x32]; // Packet[Length] int z=0; Packet[0]=0x00; // Spare Packet[1]=0x32; // Length Packet[2]=0x01; // Source Packet[3]=0x02; // Destination Packet[4]=0x01; // ID Packet[5]=0x00; // Spare for(z=0;z<=24;z+=8) { Packet[9-z/8]=((int)(720000+armcontrolpacket->dof0_rot*1000)/(int)pow((double)2,(double)z)); Packet[13-z/8]=((int)(720000+armcontrolpacket->dof0_speed*1000)/(int)pow((double)2,(double)z)); Packet[17-z/8]=((int)(720000+armcontrolpacket->dof1_rot*1000)/(int)pow((double)2,(double)z)); Packet[21-z/8]=((int)(720000+armcontrolpacket->dof1_speed*1000)/(int)pow((double)2,(double)z)); Packet[25-z/8]=((int)(720000+armcontrolpacket->dof2_rot*1000)/(int)pow((double)2,(double)z)); Packet[29-z/8]=((int)(720000+armcontrolpacket->dof2_speed*1000)/(int)pow((double)2,(double)z)); Packet[33-z/8]=((int)(720000+armcontrolpacket->dof3_rot*1000)/(int)pow((double)2,(double)z)); Packet[37-z/8]=((int)(720000+armcontrolpacket->dof3_speed*1000)/(int)pow((double)2,(double)z)); Packet[41-z/8]=((int)(720000+armcontrolpacket->dof4_rot*1000)/(int)pow((double)2,(double)z)); Packet[45-z/8]=((int)(720000+armcontrolpacket->dof4_speed*1000)/(int)pow((double)2,(double)z)); Packet[49-z/8]=((int)armcontrolpacket->timestamp/(int)pow(2.0,(double)z)); } if(SendPacket(sock,(char*)&Packet,sizeof(Packet))) return 1; return 0; What would be the easiest way to receive that data, convert it into a readable python format, manipulate them and send them forward to the receiver?

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  • .NET AES returns wrong Test Vectors

    - by ralu
    I need to implement some crypto protocol on C# and want to say that this is my first project in C#. After spending some time to get used on C# I found out that I am unable to get compliant AES vectors. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.IO; namespace ConsoleApplication1 { class Program { public static void Main() { try { //test vectors from "ecb_vk.txt" byte[] key = { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; byte[] data = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; byte[] encTest = { 0x0e, 0xdd, 0x33, 0xd3, 0xc6, 0x21, 0xe5, 0x46, 0x45, 0x5b, 0xd8, 0xba, 0x14, 0x18, 0xbe, 0xc8 }; AesManaged aesAlg = new AesManaged(); aesAlg.BlockSize = 128; aesAlg.Key = key; aesAlg.Mode = CipherMode.ECB; ICryptoTransform encryptor = aesAlg.CreateEncryptor(); MemoryStream msEncrypt = new MemoryStream(); CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write); StreamWriter swEncrypt = new StreamWriter(csEncrypt); swEncrypt.Write(data); swEncrypt.Close(); csEncrypt.Close(); msEncrypt.Close(); aesAlg.Clear(); byte[] encr; encr = msEncrypt.ToArray(); string datastr = BitConverter.ToString(data); string encrstr = BitConverter.ToString(encr); string encTestStr = BitConverter.ToString(encTest); Console.WriteLine("data: {0}", datastr); Console.WriteLine("encr: {0}", encrstr); Console.WriteLine("should: {0}", encTestStr); Console.ReadKey(); } catch (Exception e) { Console.WriteLine("Error: {0}", e.Message); } } } } Output is wrong: data: 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 encr: A0-3C-C2-22-A4-32-F7-C9-BA-36-AE-73-66-BD-BB-A3 should: 0E-DD-33-D3-C6-21-E5-46-45-5B-D8-BA-14-18-BE-C8 I am sure that there is a correct AES implementation in .NET, so I need some advice from a .NET wizard to help with this.

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  • MBR status confusion

    - by Ahmed Ghoneim
    EB 58 90 6D 6B 64 6F 73 66 73 00 00 02 08 20 00 02 00 00 00 00 F8 00 00 3E 00 83 00 00 00 00 00 94 88 7E 00 98 1F 00 00 00 00 00 00 02 00 00 00 01 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 29 A9 38 B1 34 57 61 76 65 20 20 20 20 20 20 20 46 41 54 33 32 20 20 20 0E 1F BE 77 7C AC 22 C0 74 0B 56 B4 0E BB 07 00 CD 10 5E EB F0 32 E4 CD 16 CD 19 EB FE 54 68 69 73 20 69 73 20 6E 6F 74 20 61 20 62 6F 6F 74 61 62 6C 65 20 64 69 73 6B 2E 20 20 50 6C 65 61 73 65 20 69 6E 73 65 72 74 20 61 20 62 6F 6F 74 61 62 6C 65 20 66 6C 6F 70 70 79 20 61 6E 64 0D 0A 70 72 65 73 73 20 61 6E 79 20 6B 65 79 20 74 6F 20 74 72 79 20 61 67 61 69 6E 20 2E 2E 2E 20 0D 0A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 AA Learning disk records, this is my USB MBR record viewed by bless on ubuntu formatted with disk utility as MBR table and FAT partition, referring to this Wiki of first record status (0x80 = bootable (active), 0x00 = non-bootable, other = invalid ) but my MBR shows first offset as EB. What's this record stands for ? also, can you provide me with good tables/images tutorials for MBR and other disks' records :)

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  • Why doesen't the number 2 work in this for-loop?

    - by Emil
    Hello. I have a function that runs trough each element in an array. It's hard to explain, so I'll just paste in the code here: NSLog(@"%@", arraySub); for (NSString *string in arrayFav){ int favoriteLoop = [string intValue] + favCount; NSLog(@"%d", favoriteLoop); id arrayFavObject = [array objectAtIndex:favoriteLoop]; [arrayFavObject retain]; [array removeObjectAtIndex:favoriteLoop]; [array insertObject:arrayFavObject atIndex:0]; [arrayFavObject release]; id arraySubFavObject = [arraySub objectAtIndex:favoriteLoop]; [arraySubFavObject retain]; [arraySub removeObjectAtIndex:favoriteLoop]; [arraySub insertObject:arraySubFavObject atIndex:0]; [arraySubFavObject release]; id arrayLengthFavObject = [arrayLength objectAtIndex:favoriteLoop]; [arrayLengthFavObject retain]; [arrayLength removeObjectAtIndex:favoriteLoop]; [arrayLength insertObject:arrayLengthFavObject atIndex:0]; [arrayLengthFavObject release]; } NSLog(@"%@", arraySub); The array arrayFav contains these strings: "3", "8", "2", "10", "40". Array array contains 92 strings with a name. Array arraySub contains numbers 0 to 91, representing a filename with a title from the array array. Array arrayLength contains 92 strings representing the size of each file from array arraySub. Now, the first NSLog shows, as expected, the numbers 0 to 91. The NSLog-s in the loop shows the numbers 3, 8, 2, 10, 40, also as expected. But here's the odd part: the last NSLog shows these numbers: 40, 10, 0, 8, 3, 1, 2, 4, 5, 6, 7, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91 that is 40, 10, 0, 8, 3, and so on. It was not supposed to be a zero in there, it was supposed to be a 2.. Do you have any idea at why this is happening or a way to fix it? Thank you.

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  • Maven Ant BuildException with maven-antrun-plugin ... unable to find javac compiler

    - by robsbobs
    Im trying to make Maven call an ANT build for some legacy code. the ant build builds correctly through ant however when i call it using the maven ant plugin it fails with the following error: [ ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (default) on project CoreServices: An Ant BuildException has occured: The following error occurred while executing this line: [ERROR] C:\dev\projects\build\build.xml:158: The following error occurred while executing this line: [ERROR] C:\dev\projects\build\build.xml:62: The following error occurred while executing this line: [ERROR] C:\dev\projects\build\build.xml:33: The following error occurred while executing this line: [ERROR] C:\dev\projects\ods\build.xml:41: Unable to find a javac compiler; [ERROR] com.sun.tools.javac.Main is not on the classpath. [ERROR] Perhaps JAVA_HOME does not point to the JDK. [ERROR] It is currently set to "C:\bea\jdk150_11\jre" My javac exists at C:\bea\jdk150_11\bin and this works for all other things. Im not sure where Maven is getting this version of JAVA_HOME. JAVA_HOME in windows envionrmental variables is set to C:\bea\jdk150_11\ as it should be. The Maven code that im using to call the build.xml is <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-antrun-plugin</artifactId> <version>1.6</version> <executions> <execution> <phase>install</phase> <configuration> <target> <ant antfile="../build/build.xml" target="deliver" > </ant> </target> </configuration> <goals> <goal>run</goal> </goals> </execution> </executions> </plugin> </plugins> </build>

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  • How to exit an air application from an actionscript library?

    - by Vincen Collins
    I am trying the following but every once in awhile the nativeApp is not defined. var nativeApp:Object = getDefinitionByName("flash.desktop.NativeApplication"); nativeApp.nativeApplication.exit(); I am confused why sometimes getDefinitionByName("flash.desktop.NativeApplication") resolves and other times it does not. I am trying to resolve this problem to address the following issue in flexcover - http://code.google.com/p/flexcover/issues/detail?id=33

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  • C# AES returns wrong Test Vectors

    - by ralu
    I need to implement some crypto protocol on C# and want to say that this is my first project in C#. After spending some time to get used on C# I found out that I am unable to get compliant AES vectors. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography; using System.IO; namespace ConsoleApplication1 { class Program { public static void Main() { try { //test vectors from "ecb_vk.txt" byte[] key = { 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; byte[] data = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; byte[] encTest = { 0x0e, 0xdd, 0x33, 0xd3, 0xc6, 0x21, 0xe5, 0x46, 0x45, 0x5b, 0xd8, 0xba, 0x14, 0x18, 0xbe, 0xc8 }; AesManaged aesAlg = new AesManaged(); aesAlg.BlockSize = 128; aesAlg.Key = key; aesAlg.Mode = CipherMode.ECB; ICryptoTransform encryptor = aesAlg.CreateEncryptor(); MemoryStream msEncrypt = new MemoryStream(); CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write); StreamWriter swEncrypt = new StreamWriter(csEncrypt); swEncrypt.Write(data); swEncrypt.Close(); csEncrypt.Close(); msEncrypt.Close(); aesAlg.Clear(); byte[] encr; encr = msEncrypt.ToArray(); string datastr = BitConverter.ToString(data); string encrstr = BitConverter.ToString(encr); string encTestStr = BitConverter.ToString(encTest); Console.WriteLine("data: {0}", datastr); Console.WriteLine("encr: {0}", encrstr); Console.WriteLine("should: {0}", encTestStr); Console.ReadKey(); } catch (Exception e) { Console.WriteLine("Error: {0}", e.Message); } } } } Output is wrong: data: 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 encr: A0-3C-C2-22-A4-32-F7-C9-BA-36-AE-73-66-BD-BB-A3 should: 0E-DD-33-D3-C6-21-E5-46-45-5B-D8-BA-14-18-BE-C8 I am sure that there is correct AES implementation in C#, so I need some advice from C# wizard to help whit this. Thanks

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  • PHP Sockets Errors (connection refused and No such file or directory)

    - by Purefan
    Hello all, I am writing a server app (broadcaster) and a client (relayer). Several relayers can connect to the broadcaster at the same time, send information and the broadcaster will redirect the message to a matching relayer (for example relayer1 sends to broadcaster who sends to relayer43, relayer2 - broadcaster - relayer73...) The server part is working as I have tested it with a telnet client and although its at this point only an echo server it works. Both relayer and broadcaster sit on the same server so I am using AF_UNIX sockets, both files are in different folders though. I have tried two approaches for the relayer and both have failed, the first one is using socket_create: public function __construct() { // where is the socket server? $this->_sHost = 'tcp://127.0.0.1'; $this->_iPort = 11225; // open a client connection $this->_hSocket = socket_create(AF_UNIX, SOCK_STREAM, 0); echo 'Attempting to connect to '.$this->_sHost.' on port '.$this->_iPort .'...'; $result = socket_connect($this->_hSocket, $this->_sHost, $this->_iPort); if ($result === false) { echo "socket_connect() failed.\nReason: ($result) " . socket_strerror(socket_last_error($this->_hSocket)) . "\n"; } else { echo "OK.\n"; } This returns "Warning: socket_connect(): unable to connect [2]: No such file or directory in relayer.class.php on line 27" and (its running from command line) it often also returns a segmentation fault. The second approach is using pfsockopen: public function __construct() { // where is the socket server? $this->_sHost = 'tcp://127.0.0.1'; $this->_iPort = 11225; // open a client connection $fp = pfsockopen ($this->_sHost, $this->_iPort, $errno, $errstr); if (!$fp) { $result = "Error: could not open socket connection"; } else { // get the welcome message fgets ($fp, 1024); // write the user string to the socket fputs ($fp, 'Message ' . __LINE__); // get the result $result .= fgets ($fp, 1024); // close the connection fputs ($fp, "END"); fclose ($fp); // trim the result and remove the starting ? $result = trim($result); $result = substr($result, 2); // now print it to the browser } which only returns the error "Warning: pfsockopen(): unable to connect to tcp://127.0.0.1:11225 (Connection refused) in relayer.class.php on line 33 " In all tests I have tried with different host names, 127.0.0.1, localhost, tcp://127.0.0.1, 192.168.0.199, tcp://192.168.0.199, none of it has worked. Any ideas on this?

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