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  • Displaying Array in Select - FORM API Drupal

    - by Krishma
    Hi: I want to add key(type_id) and value(type_description) to select in drupal form API $result_x-product_types-RPMProductType is array result from Database :- array(4) { [0]= object(stdClass)#18 (2) { ["type_description"]= string(10) "Calendered" ["type_id"]= int(1) } [1]= object(stdClass)#19 (2) { ["type_description"]= string(8) "Extruded" ["type_id"]= int(2) } [2]= object(stdClass)#20 (2) { ["type_description"]= string(6) "Molded" ["type_id"]= int(3) } [3]= object(stdClass)#21 (2) { ["type_description"]= string(5) "Other" ["type_id"]= int(4) } } foreach ($result_x-product_types-RPMProductType as $data) { $form['manufacturer_add_new_sales']['product_type'] = array( '#type' = 'select', '#title' = t('Product Type'), '#options'=array($data-type_id=$data-type_description), ); } When do so I am getting only last value i.e Other. How to correctly loop to bind Select to display all the array Key - Values. Thank you in advance.

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  • Broadcast receiver, check status, turning off connection with F8

    - by yoann
    I am using eclipse with android sdk 3.2 I have some problems to make my broadcast receiver working when the connection is lost. first I have checked the type of network to make sure I understand well : ConnectivityManager manager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE); boolean is3g = manager.getNetworkInfo( ConnectivityManager.TYPE_MOBILE) .isConnectedOrConnecting(); boolean isWifi = manager.getNetworkInfo( ConnectivityManager.TYPE_WIFI) .isConnectedOrConnecting(); NetworkInfo info = manager.getActiveNetworkInfo(); if (info != null) Toast.makeText(getApplicationContext(), info.getTypeName(), Toast.LENGTH_LONG).show(); else Toast.makeText(getApplicationContext(), "Pas de connexion", Toast.LENGTH_LONG).show(); if (!is3g) Log.i("Network Listener", "DISCONNECTED"); else Log.i("Network Listener", "CONNECTED"); == this is a mobile network, I'm connected Then I press F8 or I make : telnet localhost 5554 gsm data off to stop the connection Here is my dynamic broadcast receiver in an activity : public class ActivityA extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.query); this.registerReceiver(this.networkStateReceiver, new IntentFilter( ConnectivityManager.CONNECTIVITY_ACTION)); } BroadcastReceiver networkStateReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { ConnectivityManager connMgr = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connMgr.getActiveNetworkInfo(); //i have tried several things : State networkState = networkInfo.getState(); // if (networkState.compareTo(State.DISCONNECTED) == 0) ... if (networkInfo != null && networkInfo.isConnected()) { Toast.makeText(getApplicationContext(), "CONNECTED", Toast.LENGTH_LONG).show(); Log.i("Network Listener", "Connected"); } else { Toast.makeText(getApplicationContext(), "DISCONNECTED", Toast.LENGTH_LONG).show(); Log.i("Network Listener", "Network Type Changed"); Intent offline = new Intent(AccountInfoActivity.this, OfflineWorkService.class); startService(offline); } }; My manifest : <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> The problem is : when the activityA is launched, my broadcast receive something and it displays "Connected"(Log) and my toast. When I turn off the connection manually, nothing happend. My service is not started, log message are not displayed, only toast messages work ... And even better, when I turn on the connection again (by pressing F8), I test again the type of connection, Toast messages are shown but this time Log messages don't work. Problems happend when I press F8. Anyway, I think I miss something with broadcast receivers, it's not totally clear. Please help me.

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  • Is this code well-defined?

    - by Nawaz
    This code is taken from a discussion going on here. someInstance.Fun(++k).Gun(10).Sun(k).Tun(); Is this code well-defined? Is ++k Fun() evaluated before k in Sun()? What if k is user-defined type, not built-in type? And in what ways the above function calls order is different from this: eat(++k);drink(10);sleep(k); As far as I can say, in both situations, there exists a sequence point after each function call. If so, then why can't the first case is also well-defined like the second one? Section 1.9.17 of the C++ ISO standard says this about sequence points and function evaluation: When calling a function (whether or not the function is inline), there is a sequence point after the evaluation of all function arguments (if any) which takes place before execution of any expressions or statements in the function body. There is also a sequence point after the copying of a returned value and before the execution of any expressions outside the function.

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  • Activator.CreateInstance(string) and Activator.CreateInstance<T>() difference

    - by Juan Manuel Formoso
    No, this is not a question about generics. I have a Factory pattern with several classes with internal constructors (I don't want them being instantiated if not through the factory). My problem is that CreateInstance fails with a "No parameterless constructor defined for this object" error unless I pass "true" on the non-public parameter. Example // Fails Activator.CreateInstance(type); // Works Activator.CreateInstance(type, true); I wanted to make the factory generic to make it a little simpler, like this: public class GenericFactory<T> where T : MyAbstractType { public static T GetInstance() { return Activator.CreateInstance<T>(); } } However, I was unable to find how to pass that "true" parameter for it to accept non-public constructors (internal). Did I miss something or it isn't possible?

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  • Print a JavaScript array to HTML, square brackets and quotation marks intact

    - by Mark Gia Bao Nguyen
    I'd like to set the attribute of an input form with an array of values (to use for autocomplete search). I have a JS array that looks a little something like this: var suggestions = ["value1", "value2", "value3"]; Using jQuery, I did this: $("#search-input").attr("data-source", suggestions); Desired output: <input type='search' data-source='["value1", "value2", "value3"]' /> Actual output: <input type='search' data-source='value1, value2, value3' /> This breaks the autocomplete as it requires an array (or at least something that looks like a JavaScript array).

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  • Visual Studio 2010 Formatting

    - by Rosarch
    I have plenty of experience with Eclipse, and now I'm trying out Visual Studio 2010. I find its formatting somewhat counter-intuitive. Here are some things I'm trying to figure out: Is there a way to select all text and format/indent it properly, like SHIFT+A SHIFT+I in Eclipse? Why is it that when I type a line like if (n == 0) {, as soon as I type the opening brace, the text cursor is moved to the beginning of the line? Is this some productivity speedup I'm failing to see? When I hit ENTER after the aforementioned line, I'd like the closing brace to be put in place automatically for me. How can I do this? I've looked for hotkey documentation, and it's helped a bit, but this still feels clunky to me.

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  • Php miniserver downloader bandwidth

    - by snikolov
    $httpsock = @socket_create_listen("9090"); if (!$httpsock) { print "Socket creation failed!\n"; exit; } while (1) { $client = socket_accept($httpsock); $input = trim(socket_read ($client, 4096)); $input = explode(" ", $input); $input = $input[1]; $fileinfo = pathinfo($input); switch ($fileinfo['extension']) { default: $mime = "text/html"; } if ($input == "/") { $input = "index.html"; } $input = ".$input"; if (file_exists($input) && is_readable($input)) { echo "Serving $input\n"; $contents = file_get_contents($input); $output = "HTTP/1.0 200 OK\r\nServer: APatchyServer\r\nConnection: close\r\nContent-Type: $mime\r\n\r\n$contents"; } else { //$contents = "The file you requested doesn't exist. Sorry!"; //$output = "HTTP/1.0 404 OBJECT NOT FOUND\r\nServer: BabyHTTP\r\nConnection: close\r\nContent-Type: text/html\r\n\r\n$contents"; $filename = "dada"; $file = fopen($filename, 'r'); $filesize = filesize($filename); $buffer = fread($file, $filesize); $send = array("Output"=$buffer,"filesize"=$filesize,"filename"=$filename); $file = $send['filename']; $filesize = $send['filesize']; $output = 'HTTP/1.0 200 OK\r\n'; $output .= "Content-type: application/octet-stream\r\n"; $output .= 'Content-Disposition: attachment; filename="'.$file.'"\r\n'; $output .= "Content-Length:$filesize\r\n"; $output .= "Accept-Ranges: bytes\r\n"; $output .= "Cache-Control: private\n\n"; $output .= $send['Output']; $output .= "Content-Transfer-Encoding: binary"; $output .= "Connection: Keep-Alive\r\n"; } socket_write($client, $output); socket_close ($client); } socket_close ($httpsock); Hello i have create a code here to work as a webserver downloader the client can request files and download, i got it working at last however, i would like to know if the webserver can show much bandwidth the user request via sockets, perl has the same option as php but its more hardcore than php, i dont understand much about perl, i even saw that a miniwebserver can show much the client user pulls from the server would it be possible that you can assist me with this coding, i much aprreciate it thank you guys.

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  • Haskell Syntax: Parse Error On Input

    - by NuNu
    As part of a mini-haskell compiler that I'm writing, I have a function named app. What I want this function to do is take in these arguments epp (App e1 e2). The first step would be to evaluate e1 recursively (epp e1) and check if the output would be an error. If not then evaluate e2 and then call another function eppVals to evaluate the outputs of the calls on e1 and e2 which I defined as v1 and v2 respectively. epp (App e1 e2) | epp e1 /= Error = eppVals v1 v2 | otherwise = Error where v1 = epp e1 v2 = epp e2 <- parse error on input `=' Logically I believe what I have written so far works but I'm getting a parse error on input = where I stated above. Any idea why? My second try epp :: Exp -> Error Val epp (App e1 e2) = (eppVals v1 v2) where v1 = (epp e1) v2 = (epp e2) But now throws Couldn't match expected type Val with actual type Error Val

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  • Why wont this entire word doc file generate from my php script?

    - by CheeseConQueso
    Here's the php script I'm using on a linux environment: <?php include("../_inc/odbcw.php"); //connect string $cat = $_GET["cat"]; if($_GET["st"]){$crs_query = "select crs_no, title, credits, abstr, prereq, coreq, lab_fee from xxx where active = 'Y' and cat = '".$cat."' and spec_top = 'Y' and prog='UNDG' order by crs_no";} else {$crs_query = "select crs_no, title, credits, abstr, prereq, coreq, lab_fee from xxx where active = 'Y' and cat = '".$cat."' and prog='UNDG' order by crs_no";} $crs_result = @mysql_query($crs_query); header("Content-type: application/vnd.ms-word"); header("Content-Disposition: attachment;Filename=cat.doc"); echo "<html>"; echo "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=Windows-1252\">"; echo "<body>"; echo '<table border=0 width = 700>'; if($_GET["st"]){echo '<tr><td><font face=arial size=2><center>CATALOGUE<br>COURSE DESCRIPTIONS - '.$cat.'<br>SPECIAL TOPICS</center></font></td></tr>';} else {echo '<tr><td><font face=arial size=2><center>CATALOGUE<br>COURSE DESCRIPTIONS - '.$cat.'</center></font></td></tr>';} echo '</table>'; echo '<hr width=700>'; while($row = mysql_fetch_array($crs_result)) { $crs_no = $row['crs_no']; $title = $row['title']; $credits = $row['credits']; $abstr = $row['abstr']; $prereq = $row['prereq']; $coreq = $row['coreq']; $lab_fee = $row['lab_fee']; $rowspan = 2; if($prereq) {$rowspan++;} if($coreq) {$rowspan++;} if($lab_fee=="Y") {$rowspan++;} echo "<table border=0 width = 700>"; echo "<tr>"; echo "<td rowspan=".$rowspan." valign=top width=100><font face=arial size=2>".$crs_no."</font></td>"; echo "<td valign=top><font face=arial size=2><u>".$title."</u></font></td> <td valign=top align=right><font face=arial size=2>".$credits."</font></td>"; echo "</tr>"; echo "<tr>"; echo "<td colspan=2 valign=top align=justify><font face=arial size=2>".$abstr."</font></td>"; echo "</tr>"; if($prereq) { echo "<tr>"; echo "<td colspan=2 valign=top><font face=arial size=2>Prerequisite: ".$prereq."</font></td>"; echo "</tr>"; } if($coreq) { echo "<tr>"; echo "<td colspan=2 valign=top><font face=arial size=2>Coerequisite: ".$coreq."</font></td>"; echo "</tr>"; } if($lab_fee=="Y") { echo "<tr>"; echo "<td colspan=2 valign=top><font face=arial size=2>Lab Fee Required</font></td>"; echo "</tr>"; } echo "</table>"; echo "<br>"; } echo "</body>"; echo "</html>"; ?> Everything works fine before the inclusion of: header("Content-type: application/vnd.ms-word"); header("Content-Disposition: attachment;Filename=cat.doc"); echo "<html>"; echo "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=Windows-1252\">"; echo "<body>"; These lines successfully bring up the dialogue box to open or save cat.doc, but after I open it, the only lines printed are: CATALOGUE COURSE DESCRIPTIONS - and the <HR> beneath this echoed text. It seems to go on lunch break for the while loop echoing section. Any ideas?

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  • CentOS 6.3 Virtual under OpenVZ cannot ping, host lookups, outbound connections while postfix running

    - by Paul Cravey
    My best theory is that some kernel limit is being hit preventing outbound connections. We have tried basically everything from tcpdumps to provisioning an entirely new virtual server (we do not have this problem on any other virtuals), however the problem somehow carried over, even with new postfix build (working). Emails work, and outbound connections work, so long as postfix does not have too much going on. /proc/user_beancounters shows no limits being hit (show below). Nevertheless, pings fail even to IP addresses. TCP stack appears healthy. Load is low. No iowait. Flushed iptables already. Has anyone experienced anything like this? uid resource held maxheld barrier limit failcnt 3: kmemsize 166216365 170262528 9223372036854775807 9223372036854775807 0 lockedpages 0 0 9223372036854775807 9223372036854775807 0 privvmpages 285727 351885 9223372036854775807 9223372036854775807 0 shmpages 16933 17605 9223372036854775807 9223372036854775807 0 dummy 0 0 0 0 0 numproc 150 303 9223372036854775807 9223372036854775807 0 physpages 314156 326191 0 1280000 0 vmguarpages 0 0 9223372036854775807 9223372036854775807 0 oomguarpages 165355 165355 9223372036854775807 9223372036854775807 0 numtcpsock 89 172 9223372036854775807 9223372036854775807 0 numflock 22 76 9223372036854775807 9223372036854775807 0 numpty 1 2 9223372036854775807 9223372036854775807 0 numsiginfo 0 75 9223372036854775807 9223372036854775807 0 tcpsndbuf 2733472 4371752 9223372036854775807 9223372036854775807 0 tcprcvbuf 1798336 5427296 9223372036854775807 9223372036854775807 0 othersockbuf 491120 1000760 9223372036854775807 9223372036854775807 0 dgramrcvbuf 0 238728 9223372036854775807 9223372036854775807 0 numothersock 361 505 9223372036854775807 9223372036854775807 0 dcachesize 135941831 136114679 9223372036854775807 9223372036854775807 0 numfile 2905 4990 9223372036854775807 9223372036854775807 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 dummy 0 0 0 0 0 numiptent 8 9 9223372036854775807 9223372036854775807 0 [root@bni /]# ping 4.2.2.1 PING 4.2.2.1 (4.2.2.1) 56(84) bytes of data. --- 4.2.2.1 ping statistics --- 9 packets transmitted, 0 received, 100% packet loss, time 8493ms [root@bni /]# service postfix stop [root@bni /]# ping 4.2.2.1 PING 4.2.2.1 (4.2.2.1) 56(84) bytes of data. 64 bytes from 4.2.2.1: icmp_seq=1 ttl=53 time=8.63 ms 64 bytes from 4.2.2.1: icmp_seq=2 ttl=53 time=8.62 ms 64 bytes from 4.2.2.1: icmp_seq=3 ttl=53 time=8.63 ms 64 bytes from 4.2.2.1: icmp_seq=4 ttl=53 time=8.66 ms Outbound connections of all sorts fail when postfix is running.

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  • SQLite doesn't have booleans or date-times...but C# does

    - by DanM
    I've been thinking about using SQLite for my next project, but I'm concerned that it seems to lack proper datetime and bit data types. If I use DbLinq (or some other ORM) to generate C# classes, will the data types of the properties be "dumbed down"? Will date-time data be placed in properties of type string or double? Will boolean data be placed in properties of type int? If yes, what are the implications? I'm envisioning a scenario where I need to write a whole second layer of classes with more specific data types and do a bunch of transformations and casts, but maybe it's not so bad. If you have any experience with this or a similar scenario, what are your "lessons learned"?

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  • DataSource or ConnectionPoolDataSource for Application Server JDBC resources

    - by Vinnie
    When creating JNDI JDBC connection pools in an application server, I always specified the type as javax.sql.ConnectionPoolDataSource. I never really gave it too much thought as it always seemed natural to prefer pooled connections over non-pooled. However, in looking at some examples (specifically for Tomcat) I noticed that they specify javax.sql.DataSource. Further, it seems there are settings for maxIdle and maxWait giving the impression that these connections are pooled as well. Glassfish also allows these parameters regardless of the type of data source selected. Are javax.sql.DataSource pooled in an application server (or servlet container)? What (if any) advantages are there for choosing javax.sql.ConnectionPoolDataSource over javax.sql.DataSource (or vice versa)?

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  • ASP.NET MVC - Disable Html Helper control using boolean value from Model

    - by The Matt
    I am outputting a textbox to the page using the Html helpers. I want to add the disabled attribute dynamically based on whether or not a boolean value in my model is true or false. My model has a method that returns a boolean value: <% =Model.IsMyTextboxEnabled() %> I currently render the textbox like follows, but I want to now enabled or disable it: <% =Html.TextBox("MyTextbox", Model.MyValuenew { id = "MyTextbox", @class = "MyClass" })%> If the return value of Model.IsMyTextboxEnabled() == true I want the following to be output: <input class="MyClass" id="MyTextbox" name="MyTextbox" type="text" value="" /> If it == false, I want it to output as: <input class="MyClass" id="MyTextbox" name="MyTextbox" type="text" value="" disabled /> What is the cleanest way to do this?

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  • Double pointer const-correctness warnings in C

    - by Michael Koval
    You can obviously cast a pointer to non-const data to a a pointer of the same type to const data: int *x = NULL; int const *y = x; Adding additional const qualifiers to match the additional indirection should logically work the same way: int * *x = NULL; int *const *y = x; /* okay */ int const *const *z = y; /* warning */ Compiling this with GCC or Clang with the -Wall flag, however, results in the following warning: test.c:4:23: warning: initializing 'int const *const *' with an expression of type 'int *const *' discards qualifiers in nested pointer types int const *const *z = y; /* warning */ ^ ~ Why does adding an additional const qualifier "discard qualifiers in nested pointer types"?

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  • How to add/remove rows using SlickGrid

    - by lkahtz
    How to write such functions and bind them to two buttons like "add row" and "remove row": The now working example code only support adding new row by editing on the blank bottom line. <!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>SlickGrid example 3: Editing</title> <link rel="stylesheet" href="../slick.grid.css" type="text/css"/> <link rel="stylesheet" href="../css/smoothness/jquery-ui-1.8.16.custom.css" type="text/css"/> <link rel="stylesheet" href="examples.css" type="text/css"/> <style> .cell-title { font-weight: bold; } .cell-effort-driven { text-align: center; } </style> </head> <body> <div style="position:relative"> <div style="width:600px;"> <div id="myGrid" style="width:100%;height:500px;"></div> </div> <div class="options-panel"> <h2>Demonstrates:</h2> <ul> <li>adding basic keyboard navigation and editing</li> <li>custom editors and validators</li> <li>auto-edit settings</li> </ul> <h2>Options:</h2> <button onclick="grid.setOptions({autoEdit:true})">Auto-edit ON</button> &nbsp; <button onclick="grid.setOptions({autoEdit:false})">Auto-edit OFF</button> </div> </div> <script src="../lib/firebugx.js"></script> <script src="../lib/jquery-1.7.min.js"></script> <script src="../lib/jquery-ui-1.8.16.custom.min.js"></script> <script src="../lib/jquery.event.drag-2.0.min.js"></script> <script src="../slick.core.js"></script> <script src="../plugins/slick.cellrangedecorator.js"></script> <script src="../plugins/slick.cellrangeselector.js"></script> <script src="../plugins/slick.cellselectionmodel.js"></script> <script src="../slick.formatters.js"></script> <script src="../slick.editors.js"></script> <script src="../slick.grid.js"></script> <script> function requiredFieldValidator(value) { if (value == null || value == undefined || !value.length) { return {valid: false, msg: "This is a required field"}; } else { return {valid: true, msg: null}; } } var grid; var data = []; var columns = [ {id: "title", name: "Title", field: "title", width: 120, cssClass: "cell-title", editor: Slick.Editors.Text, validator: requiredFieldValidator}, {id: "desc", name: "Description", field: "description", width: 100, editor: Slick.Editors.LongText}, {id: "duration", name: "Duration", field: "duration", editor: Slick.Editors.Text}, {id: "%", name: "% Complete", field: "percentComplete", width: 80, resizable: false, formatter: Slick.Formatters.PercentCompleteBar, editor: Slick.Editors.PercentComplete}, {id: "start", name: "Start", field: "start", minWidth: 60, editor: Slick.Editors.Date}, {id: "finish", name: "Finish", field: "finish", minWidth: 60, editor: Slick.Editors.Date}, {id: "effort-driven", name: "Effort Driven", width: 80, minWidth: 20, maxWidth: 80, cssClass: "cell-effort-driven", field: "effortDriven", formatter: Slick.Formatters.Checkmark, editor: Slick.Editors.Checkbox} ]; var options = { editable: true, enableAddRow: true, enableCellNavigation: true, asyncEditorLoading: false, autoEdit: false }; $(function () { for (var i = 0; i < 500; i++) { var d = (data[i] = {}); d["title"] = "Task " + i; d["description"] = "This is a sample task description.\n It can be multiline"; d["duration"] = "5 days"; d["percentComplete"] = Math.round(Math.random() * 100); d["start"] = "01/01/2009"; d["finish"] = "01/05/2009"; d["effortDriven"] = (i % 5 == 0); } grid = new Slick.Grid("#myGrid", data, columns, options); grid.setSelectionModel(new Slick.CellSelectionModel()); grid.onAddNewRow.subscribe(function (e, args) { var item = args.item; grid.invalidateRow(data.length); data.push(item); grid.updateRowCount(); grid.render(); }); }) </script> </body> </html>

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  • Would dynamically created JavaScript files be cached?

    - by venksster
    So my application uses a LOT of js files. thats a lot of http requests. I decided to combine them dynamically at the server in packs of 3-4 files clubbed by functionality. My client side request is: ...script type="text/javascript" src="http://mydomain.com/core-js.php" ... My server side does: --core-js.php-- header("Content-type: application/x-javascript"); include_once('file1.js'); include_once('file2.js'); include_once('file3.js'); include_once('file4.js'); I am setting a far future expire header on core-js.php. My question is, would core-js.php be cached at the client side? If it would be, could someone please explain how? Thanks!

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  • Why is this simple file upload not working? JSF

    - by Nitesh Panchal
    Hello, Why is this code not working? I always get size() = 0, whenever i upload file. xhtml file :- <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html"> <h:head> <title>Abc</title> </h:head> <h:body> <center> <form method="post" enctype="multipart/form-data" id="form" action="/upload/uploadFile"> <input type="file"/> <br/> <input type="Submit" value="upload"/> </form> </center> </h:body> </html> This is my servlet :- package servlets; import java.io.IOException; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; @WebServlet(name="uploadFile", urlPatterns={"/uploadFile"}) public class uploadFile extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, FileUploadException { System.out.println("executed!"); List<FileItem> items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request); System.out.println(items.size()); for (FileItem item : items) { if (!item.isFormField()) { System.out.println("Name: " + item.getName()); System.out.println("Size: " + item.getSize()); System.out.println("Type: " + item.getContentType()); } } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { processRequest(request, response); } catch (FileUploadException ex) { ex.printStackTrace(); } } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { processRequest(request, response); } catch (FileUploadException ex) { ex.printStackTrace(); } } @Override public String getServletInfo() { return "Short description"; } }

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  • Make xargs execute the command once for each line of input

    - by Readonly
    How can I make xargs execute the command exactly once for each line of input given? It's default behavior is to chunk the lines and execute the command once, passing multiple lines to each instance. From http://en.wikipedia.org/wiki/Xargs: find /path -type f -print0 | xargs -0 rm In this example, find feeds the input of xargs with a long list of file names. xargs then splits this list into sublists and calls rm once for every sublist. This is more efficient than this functionally equivalent version: find /path -type f -exec rm '{}' \; I know that find has the "exec" flag. I am just quoting an illustrative example from another resource.

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  • InvalidOperationException When XML Serializing Inherited Class

    - by Nick
    I am having an issue serializing a c# class to an XML file that has a base class... here is a simple example: namespace Domain { [Serializable] public class ClassA { public virtual int MyProperty { get; set; } } } namespace Derived { public class ClassA : Domain.ClassA { public override int MyProperty { get { return 1; } set { /* Do Nothing */ } } } } When I attempt to serialize an instance of Derived.ClassA, I receive the following exception: InvalidOperationException(Types 'Domain.ClassA' and 'Derived.ClassA' both use the XML type name 'ClassA', from the namespace ". Use XML attributes to specify a unique XML name and/or namespace for the type.) The problem is that I want to create a single base class that simply defines the structure of the XML file, and then allow anyone else to derive from that class to insert business rules, but that the formatting will come through from the base. Is this possible, and if so, how do I attribute the base class to allow this?

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  • Constructor invocation returned null: what to do?

    - by strager
    I have code which looks like: private static DirectiveNode CreateInstance(Type nodeType, DirectiveInfo info) { var ctor = nodeType.GetConstructor(new[] { typeof(DirectiveInfo) }); if(ctor == null) { throw new MissingMethodException(nodeType.FullName, "ctor"); } var node = ctor.Invoke(new[] { info }) as DirectiveNode; if(node == null) { // ???; } return node; } I am looking for what to do (e.g. what type of exception to throw) when the Invoke method returns something which isn't a DirectiveNode or when it returns null (indicated by // ??? above). (By the method's contract, nodeType will always describe a subclass of DirectiveNode.) I am not sure when calling a constructor would return null, so I am not sure if I should handle anything at all, but I still want to be on the safe side and throw an exception if something goes wrong.

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  • Android USB Host Communication

    - by Kip Russell
    I'm working on a project that utilizes the USB Host capabilities in Android 3.2. I'm suffering from a deplorable lack of knowledge and talent regarding USB/Serial communication in general. I'm also unable to find any good example code for what I need to do. I need to read from a USB Communication Device. Ex: When I connect via Putty (on my PC) I enter: >GO And the device starts spewing out data for me. Pitch/Roll/Temp/Checksum. Ex: $R1.217P-0.986T26.3*60 $R1.217P-0.986T26.3*60 $R1.217P-0.987T26.3*61 $R1.217P-0.986T26.3*60 $R1.217P-0.985T26.3*63 I can send the initial 'GO' command from the Android device at which time I receive an echo of 'GO'. Then nothing else on any subsequent reads. How can I: 1) Send the 'go' command. 2) Read in the stream of data that results. The USB device I'm working with has the following interfaces (endpoints). Device Class: Communication Device (0x2) Interfaces: Interface #0 Class: Communication Device (0x2) Endpoint #0 Direction: Inbound (0x80) Type: Intrrupt (0x3) Poll Interval: 255 Max Packet Size: 32 Attributes: 000000011 Interface #1 Class: Communication Device Class (CDC) (0xa) Endpoint #0 Address: 129 Number: 1 Direction: Inbound (0x80) Type: Bulk (0x2) Poll Interval (0) Max Packet Size: 32 Attributes: 000000010 Endpoint #1 Address: 2 Number: 2 Direction: Outbound (0x0) Type: Bulk (0x2) Poll Interval (0) Max Packet Size: 32 Attributes: 000000010 I'm able to deal with permission, connect to the device, find the correct interface and assign the endpoints. I'm just having trouble figuring out which technique to use to send the initial command read the ensuing data. I'm tried different combinations of bulkTransfer and controlTransfer with no luck. Thanks. I'm using interface#1 as seen below: public AcmDevice(UsbDeviceConnection usbDeviceConnection, UsbInterface usbInterface) { Preconditions.checkState(usbDeviceConnection.claimInterface(usbInterface, true)); this.usbDeviceConnection = usbDeviceConnection; UsbEndpoint epOut = null; UsbEndpoint epIn = null; // look for our bulk endpoints for (int i = 0; i < usbInterface.getEndpointCount(); i++) { UsbEndpoint ep = usbInterface.getEndpoint(i); Log.d(TAG, "EP " + i + ": " + ep.getType()); if (ep.getType() == UsbConstants.USB_ENDPOINT_XFER_BULK) { if (ep.getDirection() == UsbConstants.USB_DIR_OUT) { epOut = ep; } else if (ep.getDirection() == UsbConstants.USB_DIR_IN) { epIn = ep; } } } if (epOut == null || epIn == null) { throw new IllegalArgumentException("Not all endpoints found."); } AcmReader acmReader = new AcmReader(usbDeviceConnection, epIn); AcmWriter acmWriter = new AcmWriter(usbDeviceConnection, epOut); reader = new BufferedReader(acmReader); writer = new BufferedWriter(acmWriter); }

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  • WCF extensions without including the assembly version

    - by Marc Gravell
    As discussed here, I'm trying to add a WCF endpoint-extension; I've got it working, but I need to include the full assembly details: <extensions> <behaviorExtensions> <add name="protobuf" type="ProtoBuf.ServiceModel.ProtoBehaviorExtension, protobuf-net, Version=1.0.0.275, Culture=neutral, PublicKeyToken=257b51d87d2e4d67"/> </behaviorExtensions> </extensions> What I would like to do (to avoid issues when updating etc, especially for samples) is to include just the names: <add name="protobuf" type="ProtoBuf.ServiceModel.ProtoBehaviorExtension, protobuf-net"/> (which is what you might expect from standard assembly-naming conventions) However, if I do this, I get a big error: Parser Error Message: An error occurred creating the configuration section handler for system.serviceModel/behaviors: Extension element 'protobuf' cannot be added to this element. Verify that the extension is registered in the extension collection at system.serviceModel/extensions/behaviorExtensions. Is it possible (and if so: how) to add an extension without having to specify the assembly-version?

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  • Retrieve Button value with jQuery

    - by Simon Hutton
    A simple one, I'm trying to retrieve the value attribute of a button when its been pressed using jQuery, here's what I have: <script type="text/javascript"> $(document).ready(function() { $('.my_button').click(function() { alert($(this).val()); }); }); </script> <button class="my_button" name="buttonName" value="buttonValue"> Button Label</button> In Firefox my alert displays 'buttonValue' which is great but in IE7 it displays 'Button Label'. What jQuery should I use to always get the button's value? Or should I be using a different approach? Many thanks. ANSWER: I'm now using <input class="my_button" type="image" src="whatever.png" value="buttonValue" />

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