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  • Volunteer for a potential employer?

    - by EoRaptor013
    I've been looking for work since March, and haven't had much luck. Recently, however, I interviewed with a small company near my home for a C#, .NET, SQL development position. I hit it off very well with the hiring manager during the phone screen, and even more so during the face to face. Unfortunately, I failed the practical test: wiring up a web form, creating a couple of SQL stored procedures, saving new data with validation, and creating a minimal search screen. I knew what I was doing, but I was too slow to meet their standards as all the work needed to be done within an hour. Nevertheless, I really liked the place, the environment, the people who I would have been working with, and the boss. (I gave the company an 11 on Joel's 12 point scale.) So, the obvious next step was to scrape the rust off. I've been trying to create little projects for myself, but I don't know that I've been effective in getting any faster. What with all that goes into creating a project, I'm not heads-down coding as much as I think I need. Now, with all that introduction, here's the question. I have been thinking about calling the hiring manager at that place, and asking him to let me volunteer for three or four weeks, with no strings attached. I think it would benefit me, and wouldn't cost him anything (as long as I didn't slow the existing people down!). At the end of that period, he might, or might not, be inclined to hire me, but even if not, I would have had as much as 160 hours of in the trenches development. Maybe not all shiny, but no more rust, I would think. Does this plan make any sense at all? I certainly don't want to sound desperate (although, I'm not far from being there), and I very much need the tuneup, lube, and change the oil. What's the downside, if any, to me doing this? Do any of you see red flags going up—either from the prerspective of the hiring manager, or from the perspective of a developer?

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  • crash in calloc

    - by mmd
    I'm trying to debug a program I wrote. I ran it inside gdb and I managed to catch a SIGABRT from inside calloc(). I'm completely confused about how this can arise. Can it be a bug in gcc or even libc?? More details: My program uses OpenMP. I ran it through valgrind in single-threaded mode with no errors. I also use mmap() to load a 40GB file, but I doubt that is relevant. Inside gdb, I'm running with 30 threads. Several identical runs (same input&CL) finished correctly, until the problematic one that I caught. On the surface this suggests there might be a race condition of some type. However, the SIGABRT comes from calloc() which is out of my control. Here is some relevant gdb output: (gdb) info threads [...] * 11 Thread 0x7ffff0056700 (LWP 73449) 0x00007ffff6a948a5 in raise () from /lib64/libc.so.6 [...] (gdb) thread 11 [Switching to thread 11 (Thread 0x7ffff0056700 (LWP 73449))]#0 0x00007ffff6a948a5 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x00007ffff6a948a5 in raise () from /lib64/libc.so.6 #1 0x00007ffff6a96085 in abort () from /lib64/libc.so.6 #2 0x00007ffff6ad1fe7 in __libc_message () from /lib64/libc.so.6 #3 0x00007ffff6ad7916 in malloc_printerr () from /lib64/libc.so.6 #4 0x00007ffff6adb79f in _int_malloc () from /lib64/libc.so.6 #5 0x00007ffff6adbdd6 in calloc () from /lib64/libc.so.6 #6 0x000000000040e87f in my_calloc (re=0x7fff2867ef10, st=0, options=0x632020) at gmapper/../gmapper/../common/my-alloc.h:286 #7 read_get_hit_list_per_strand (re=0x7fff2867ef10, st=0, options=0x632020) at gmapper/mapping.c:1046 #8 0x000000000041308a in read_get_hit_list (re=<value optimized out>, options=0x632010, n_options=1) at gmapper/mapping.c:1239 #9 handle_read (re=<value optimized out>, options=0x632010, n_options=1) at gmapper/mapping.c:1806 #10 0x0000000000404f35 in launch_scan_threads (.omp_data_i=<value optimized out>) at gmapper/gmapper.c:557 #11 0x00007ffff7230502 in ?? () from /usr/lib64/libgomp.so.1 #12 0x00007ffff6dfc851 in start_thread () from /lib64/libpthread.so.0 #13 0x00007ffff6b4a11d in clone () from /lib64/libc.so.6 (gdb) f 6 #6 0x000000000040e87f in my_calloc (re=0x7fff2867ef10, st=0, options=0x632020) at gmapper/../gmapper/../common/my-alloc.h:286 286 res = calloc(size, 1); (gdb) p size $2 = 814080 (gdb) The function my_calloc() is just a wrapper, but the problem is not in there, as the real calloc() call looks legit. These are the limits set in the shell: $ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 2067285 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited The program is not out of memory, it's using 41GB on a machine with 256GB available: $ top -b -n 1 | grep gmapper 73437 user 20 0 41.5g 16g 15g T 0.0 6.6 55:17.24 gmapper-ls $ free -m total used free shared buffers cached Mem: 258437 195567 62869 0 82 189677 -/+ buffers/cache: 5807 252629 Swap: 0 0 0 I compiled using gcc (GCC) 4.4.6 20120305 (Red Hat 4.4.6-4), with flags -g -O2 -DNDEBUG -mmmx -msse -msse2 -fopenmp -Wall -Wno-deprecated -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS.

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  • when I click submit it should change the text and update the row something is wrong there

    - by Yousef Altaf
    good morning programers, I have this small code which content a news control panel and I made a submit button there to active or inactive the news row so if I click on this button it should change if it's active it will be inactive it worked but there's something wrong there when I click on item one it updates the last on the table not the first on as it should do. here is the code that I use <?php $getNewsData="select * from news"; $QgetNewsData=$db->query($getNewsData)or die($db->error); $count=mysqli_num_rows($QgetNewsData); while($newsRow = mysqli_fetch_array($QgetNewsData)) { $getActivityStatus=$newsRow['news_activity']; switch($getActivityStatus){ case 1: echo"<input style='color:red; font-weight:bold; background:none; border:0;' name='inactive' type='submit' value='?????' /><input name='inActive' type='hidden' value='".$newsRow['news_id']."'/>"; break; case 0: echo"<input style='color:green; font-weight:bold; background:none; border:0;' name='active' type='submit' value='?????' /><input name='Active' type='hidden' value='".$newsRow['news_id']."'/>"; break;} } if(isset($_POST['inactive'])){ $inActive=$_POST['inActive']; echo $inActive; $updateStatus="UPDATE news SET news_activity=0 WHERE news_id='".$inActive."' "; $QupdateStatus=$db->query($updateStatus)or die($db->error); if($QupdateStatus){ } } if(isset($_POST['active'])){ $Active=$_POST['Active']; echo $Active; $updateStatus="UPDATE news SET news_activity=1 WHERE news_id='".$Active."' "; $QupdateStatus=$db->query($updateStatus)or die($db->error); if($QupdateStatus){ header("Location:CpanelHome.php?id=7"); } } ?> please any idea to solve this problem. Thanks, regards

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  • Deleting items from a ListView using a custom BaseAdapter

    - by HXCaine
    I am using a customised BaseAdapter to display items on a ListView. The items are just strings held in an ArrayList. The list items have a delete button on them (big red X), and I'd like to remove the item from the ArrayList, and notify the ListView to update itself. However, every implementation I've tried gets mysterious position numbers given to it, so for example clicking item 2's delete button will delete item 5's. It seems to be almost entirely random. One thing to note is that elements may be repeated, but must be kept in the same order. For example, I can have "Irish" twice, as elements 3 and 7. My code is below: private static class ViewHolder { TextView lang; int position; } public View getView(final int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = mInflater.inflate(R.layout.language_link_row, null); holder = new ViewHolder(); holder.lang = (TextView)convertView.findViewById(R.id.language_link_text); holder.position = position; final ImageView deleteButton = (ImageView) convertView.findViewById(R.id.language_link_cross_delete); deleteButton.setOnClickListener(this); convertView.setTag(holder); deleteButton.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.lang.setText(mLanguages.get(position)); return convertView; } I later attempt to retrieve the deleted element's position by grabbing the tag, but it's always the wrong position in the list. There is no noticeable pattern to the position given here, it always seems random. // The delete button's listener public void onClick(View v) { ViewHolder deleteHolder = (ViewHolder) v.getTag(); int pos = deleteHolder.position; ... ... ... } I would be quite happy to just delete the item from the ArrayList and have the ListView update itself, but the position I'm getting is incorrect so I can't do that. Please note that I did, at first, have the deleteButton clickListener inside the getView method, and used 'position' to delete the value, but I had the same problem. Any suggestions appreciated, this is really irritating me.

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  • Efficiency of data structures in C99 (possibly affected by endianness)

    - by Ninefingers
    Hi All, I have a couple of questions that are all inter-related. Basically, in the algorithm I am implementing a word w is defined as four bytes, so it can be contained whole in a uint32_t. However, during the operation of the algorithm I often need to access the various parts of the word. Now, I can do this in two ways: uint32_t w = 0x11223344; uint8_t a = (w & 0xff000000) >> 24; uint8_t b = (w & 0x00ff0000) >> 16; uint8_t b = (w & 0x0000ff00) >> 8; uint8_t d = (w & 0x000000ff); However, part of me thinks that isn't particularly efficient. I thought a better way would be to use union representation like so: typedef union { struct { uint8_t d; uint8_t c; uint8_t b; uint8_t a; }; uint32_t n; } word32; Using this method I can assign word32 w = 0x11223344; then I can access the various parts as I require (w.a=11 in little endian). However, at this stage I come up against endianness issues, namely, in big endian systems my struct is defined incorrectly so I need to re-order the word prior to it being passed in. This I can do without too much difficulty. My question is, then, is the first part (various bitwise ands and shifts) efficient compared to the implementation using a union? Is there any difference between the two generally? Which way should I go on a modern, x86_64 processor? Is endianness just a red herring here? I could inspect the assembly output of course, but my knowledge of compilers is not brilliant. I would have thought a union would be more efficient as it would essentially convert to memory offsets, like so: mov eax, [r9+8] Would a compiler realise that is what happening in the bit-shift case above? If it matters, I'm using C99, specifically my compiler is clang (llvm). Thanks in advance.

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  • .NET Impersonate and file upload issues

    - by Jagd
    I have a webpage that allows a user to upload a file to a network share. When I run the webpage locally (within VS 2008) and try to upload the file, it works! However, when I deploy the website to the webserver and try to upload the file through the webpage, it doesn't work! The error being returned to me on the webserver says "Access to the path '\05prd1\emp\test.txt' is denied. So, obviously, this is a permissions issue. The network share is configured to allow full access both to me (NT authentication) and to the NETWORK SERVICE (which is .NET's default account and what we have set in our IIS application pool as the default user for this website). I have tried this with and without impersonation upon the webserver and neither way works, yet both ways work on my local machine (in other words, with and without impersonation works on my local machine). The code that does the file upload is below. Please note that the code below includes impersonation, but like I said above, I've tried it with and without impersonation and it's made no difference. if (fuCourses.PostedFile != null && fuCourses.PostedFile.ContentLength > 0) { System.Security.Principal.WindowsImpersonationContext impCtx; impCtx = ((System.Security.Principal.WindowsIdentity)User.Identity).Impersonate(); try { lblMsg.Visible = true; // The courses file to be uploaded HttpPostedFile file = fuCourses.PostedFile; string fName = file.FileName; string uploadPath = "\\\\05prd1\\emp\\"; // Get the file name if (fName.Contains("\\")) { fName = fName.Substring( fName.LastIndexOf("\\") + 1); } // Delete the courses file if it is already on \\05prd1\emp FileInfo fi = new FileInfo(uploadPath + fName); if (fi != null && fi.Exists) { fi.Delete(); } // Open new file stream on \\05prd1\emp and read bytes into it from file upload FileStream fs = File.Create(uploadPath + fName, file.ContentLength); using (Stream stream = file.InputStream) { byte[] b = new byte[4096]; int read; while ((read = stream.Read(b, 0, b.Length)) > 0) { fs.Write(b, 0, read); } } fs.Close(); lblMsg.Text = "File Successfully Uploaded"; lblMsg.ForeColor = System.Drawing.Color.Green; } catch (Exception ex) { lblMsg.Text = ex.Message; lblMsg.ForeColor = System.Drawing.Color.Red; } finally { impCtx.Undo(); } } Any help on this would be very appreciated!

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  • How to display subversion URL for the Project with jenkins email-ext plugin?

    - by kamal
    Here is the jelly script i am using: <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define"> <STYLE>BODY, TABLE, TD, TH, P { font-family:Verdana,Helvetica,sans serif; font-size:11px; color:black; } h1 { color:black; } h2 { color:black; } h3 { color:black; } TD.bg1 { color:white; background-color:#0000C0; font-size:120% } TD.bg2 { color:white; background-color:#4040FF; font-size:110% } TD.bg3 { color:white; background-color:#8080FF; } TD.test_passed { color:blue; } TD.test_failed { color:red ; } TD.console { font-family:Courier New; }</STYLE> <BODY> <j:set var="spc" value="&amp;nbsp;&amp;nbsp;" /> <!-- GENERAL INFO --> <TABLE> <TR> <TD align="right"> <j:choose> <j:when test="${build.result=='SUCCESS'}"> <IMG SRC="${rooturl}static/e59dfe28/images/32x32/blue.gif" /> </j:when> <j:when test="${build.result=='FAILURE'}"> <IMG SRC="${rooturl}static/e59dfe28/images/32x32/red.gif" /> </j:when> <j:otherwise> <IMG SRC="${rooturl}static/e59dfe28/images/32x32/yellow.gif" /> </j:otherwise> </j:choose> </TD> <TD valign="center"> <B style="font-size: 200%;">BUILD ${build.result}</B> </TD> </TR> <TR> <TD>Build URL</TD> <TD> <A href="${rooturl}${build.url}">${rooturl}${build.url}</A> </TD> </TR> <TR> <TD>Project:</TD> <TD>${project.name}</TD> </TR> <TR> <TD>Date of build:</TD> <TD>${it.timestampString}</TD> </TR> <TR> <TD>Build duration:</TD> <TD>${build.durationString}</TD> </TR> <TR> <!-- BRANCH --> <TD>Subversion Repo:</TD> <TD>${build.scm}</TD> </TR> <tr> <td>Build Cause:</td> <td> <j:forEach var="cause" items="${build.causes}">${cause.shortDescription} </j:forEach> </td> </tr> </TABLE> <BR /> <!-- CHANGE SET --> <j:set var="changeSet" value="${build.changeSet}" /> <j:if test="${changeSet!=null}"> <j:set var="hadChanges" value="false" /> <TABLE width="100%"> <TR> <TD class="bg1" colspan="2"> <B>CHANGES</B> </TD> </TR> <j:forEach var="cs" items="${changeSet}" varStatus="loop"> <j:set var="hadChanges" value="true" /> <j:set var="aUser" value="${cs.hudsonUser}" /> <TR> <TD colspan="2" class="bg2">${spc}Revision <B>${cs.commitId?:cs.revision?:cs.changeNumber}</B>by <B>${aUser!=null?aUser.displayName:cs.author.displayName}:</B> <B>(${cs.msgAnnotated})</B></TD> </TR> <j:forEach var="p" items="${cs.affectedFiles}"> <TR> <TD width="10%">${spc}${p.editType.name}</TD> <TD>${p.path}</TD> </TR> </j:forEach> </j:forEach> <j:if test="${!hadChanges}"> <TR> <TD colspan="2">No Changes</TD> </TR> </j:if> </TABLE> <BR /> </j:if> <!-- ARTIFACTS --> <j:set var="artifacts" value="${build.artifacts}" /> <j:if test="${artifacts!=null and artifacts.size()&gt;0}"> <TABLE width="100%"> <TR> <TD class="bg1"> <B>BUILD ATRIFACTS</B> </TD> </TR> <TR> <TD> <j:forEach var="f" items="${artifacts}"> <li> <a href="${rooturl}${build.url}artifact/${f}">${f}</a> </li> </j:forEach> </TD> </TR> </TABLE> <BR /> </j:if> <!-- MAVEN ARTIFACTS --> <j:set var="mbuilds" value="${build.moduleBuilds}" /> <j:if test="${mbuilds!=null}"> <TABLE width="100%"> <TR> <TD class="bg1"> <B>BUILD ATRIFACTS</B> </TD> </TR> <j:forEach var="m" items="${mbuilds}"> <TR> <TD class="bg2"> <B>${m.key.displayName}</B> </TD> </TR> <j:forEach var="mvnbld" items="${m.value}"> <j:set var="artifacts" value="${mvnbld.artifacts}" /> <j:if test="${artifacts!=null and artifacts.size()&gt;0}"> <TR> <TD> <j:forEach var="f" items="${artifacts}"> <li> <a href="${rooturl}${mvnbld.url}artifact/${f}">${f}</a> </li> </j:forEach> </TD> </TR> </j:if> </j:forEach> </j:forEach> </TABLE> <BR /> </j:if> <!-- JUnit TEMPLATE --> <j:set var="junitResultList" value="${it.JUnitTestResult}" /> <j:if test="${junitResultList.isEmpty()!=true}"> <TABLE width="100%"> <TR> <TD class="bg1" colspan="2"> <B>${project.name} Functional Tests</B> </TD> </TR> <j:forEach var="junitResult" items="${it.JUnitTestResult}"> <j:forEach var="packageResult" items="${junitResult.getChildren()}"> <TR> <TD class="bg2" colspan="2">Name: ${packageResult.getName()} Failed: ${packageResult.getFailCount()} test(s), Passed: ${packageResult.getP assCount()} test(s), Skipped: ${packageResult.getSkipCount()} test(s), Total: ${packageResult.getPassCount()+packageResult.getFailCount()+packageResult.getSkipCount()} test(s)</TD> </TR> <j:forEach var="failed_test" items="${packageResult.getFailedTests()}"> <TR bgcolor="white"> <TD class="test_failed" colspan="2"> <B> <li>Failed: ${failed_test.getFullName()} <br /> <pre> ${failed_test.errorDetails} </pre></li> </B> </TD> </TR> <TR bgcolor="white"> <TD class="test_failed" colspan="2"> <B> <li>StackTrace: ${failed_test.getFullName()} <br /> <pre> ${failed_test.errorStackTrace} </pre></li> </B> </TD> </TR> </j:forEach> </j:forEach> </j:forEach> </TABLE> <BR /> </j:if> <!-- COBERTURA TEMPLATE --> <j:set var="coberturaAction" value="${it.coberturaAction}" /> <j:if test="${coberturaAction!=null}"> <j:set var="coberturaResult" value="${coberturaAction.result}" /> <j:if test="${coberturaResult!=null}"> <table width="100%"> <TD class="bg1" colspan="2"> <B>Cobertura Report</B> </TD> </table> <table width="100%"> <TD class="bg2" colspan="2"> <B>Project Coverage Summary</B> </TD> </table> <table border="1px" class="pane"> <tr> <td>Name</td> <j:forEach var="metric" items="${coberturaResult.metrics}"> <td>${metric.name}</td> </j:forEach> </tr> <tr> <td>${coberturaResult.name}</td> <j:forEach var="metric" items="${coberturaResult.metrics}"> <td data="${coberturaResult.getCoverage(metric).percentageFloat}">${coberturaResult.getCoverage(metric).percentage}% (${coberturaResult.ge tCoverage(metric)})</td> </j:forEach> </tr> </table> <j:if test="${coberturaResult.sourceCodeLevel}"> <h2>Source</h2> <j:choose> <j:when test="${coberturaResult.sourceFileAvailable}"> <div style="overflow-x:scroll;"> <table class="source"> <thead> <tr> <th colspan="3">${coberturaResult.relativeSourcePath}</th> </tr> </thead>${coberturaResult.sourceFileContent}</table> </div> </j:when> <j:otherwise> <p> <i>Source code is unavailable</i> </p> </j:otherwise> </j:choose> </j:if> <j:forEach var="element" items="${coberturaResult.childElements}"> <j:set var="childMetrics" value="${coberturaResult.getChildMetrics(element)}" /> <table width="100%"> <TD class="bg2" colspan="2">Coverage Breakdown by ${element.displayName}</TD> </table> <table border="1px" class="pane sortable"> <tr> <td>Name</td> <j:forEach var="metric" items="${childMetrics}"> <td>${metric.name}</td> </j:forEach> </tr> <j:forEach var="c" items="${coberturaResult.children}"> <j:set var="child" value="${coberturaResult.getChild(c)}" /> <tr> <td>${child.xmlTransform(child.name)}</td> <j:forEach var="metric" items="${childMetrics}"> <j:set var="childResult" value="${child.getCoverage(metric)}" /> <j:choose> <j:when test="${childResult!=null}"> <td data="${childResult.percentageFloat}">${childResult.percentage}% (${childResult})</td> </j:when> <j:otherwise> <td data="101">N/A</td> </j:otherwise> </j:choose> </j:forEach> </tr> </j:forEach> </table> </j:forEach> </j:if> <BR /> </j:if> <!-- HEALTH TEMPLATE --> <div class="content"> <j:set var="healthIconSize" value="16x16" /> <j:set var="healthReports" value="${project.buildHealthReports}" /> <j:if test="${healthReports!=null}"> <h1>Health Report</h1> <table> <tr> <th>W</th> <th>Description</th> <th>Score</th> </tr> <j:forEach var="healthReport" items="${healthReports}"> <tr> <td> <img src="${rooturl}${healthReport.getIconUrl(healthIconSize)}" /> </td> <td>${healthReport.description}</td> <td>${healthReport.score}</td> </tr> </j:forEach> </table> <br /> </j:if> </div> <!-- CONSOLE OUTPUT --> <j:getStatic var="resultFailure" field="FAILURE" className="hudson.model.Result" /> <j:if test="${build.result==resultFailure}"> <TABLE width="100%" cellpadding="0" cellspacing="0"> <TR> <TD class="bg1"> <B>CONSOLE OUTPUT</B> </TD> </TR> <j:forEach var="line" items="${build.getLog(100)}"> <TR> <TD class="console">${line}</TD> </TR> </j:forEach> </TABLE> <BR /> </j:if> </BODY> </j:jelly> <!-- BRANCH --> <TD>Subversion Repo:</TD> <TD>${build.scm}</TD> </TR> does not work, and i am not sure which argument to use with build object to get subversion url. outside jelly script, i can get the Subversion URL, using: Subversion URL: ${ENV, var="SVN_URL"}

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  • Custom Windows Forms Control not exporting functions, not showing in tools list, showing as Text

    - by flavour404
    Hi, I have written a very simple control. C# Visual Studio 2008. Its output should be, and is a dll. I have added a reference to the dll within the project that I intend to use it with. The msdn article about how to write a control states that it should appear in the 'Add reference / projects' list, which it doesn't but I simply navigated to it under the 'browse' tab, went to the /bin folder and added the reference that way. I dragged it over to my toolbox, but it shows up as a 'Text:xhair_tool' and when i try and add it to a form, it won't, so what have I done wrong? It was created as a 'Windows forms control' project. It should export the one method which is 'Target' which return an array, as shown below. using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Text; using System.Windows.Forms; namespace xhair_tool { public partial class xhair : UserControl { public xhair() { InitializeComponent(); } private void xhair_Load(object sender, EventArgs e) { } protected override void OnPaint(PaintEventArgs e) { Graphics g = e.Graphics; Pen pen = new Pen(Color.Black, 1); SolidBrush redBrush = new SolidBrush(Color.Red); g.DrawLine(pen, 8, 0, 8, 7); g.DrawLine(pen, 8, 9, 8, 16); g.DrawLine(pen, 0, 8, 7, 8); g.DrawLine(pen, 9, 8, 16, 8); //ControlPaint.DrawReversibleLine(start, end, backColor) } /// <summary> /// Returns the point at the center of the crosshair /// </summary> /// <returns>int[x,y]</returns> public int[] Target { get { int[] _xy = new int[2]; _xy[0] = this.Left + 8; _xy[1] = this.Top + 8; return _xy; } } } } Thanks, R.

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  • reCaptcha issue with Spring MVC

    - by skip
    Hi I've been trying to integrate reCaptcha with my application built on Spring framework, but I am getting this error: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'recaptcha_challenge_field' is not present Could someone help me understand that why am I getting this error. I've got both recaptcha_challenge_field and recaptcha_response_field parameters bound to the User domain object. Could anybody help me understand what am I missing? Thanks Here is the code of the controller I am using, all I am trying to do is register a user with reCaptcha functionality but what I am getting is a http status 400 with the error org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'recaptcha_challenge_field' is not present: UserManagementController.java @Controller public class UserManagementController { private static final String RECAPTCHA_HTML = "reCaptchaHtml"; @Autowired private UserService userService; @Autowired private ReCaptcha reCaptcha; @RequestMapping(method=RequestMethod.GET, value="/addNewUser.do") public ModelAndView addNewUser() { User user = new User(); String html = reCaptcha.createRecaptchaHtml(null, null); ModelMap modelMap = new ModelMap(); modelMap.put("user", user); modelMap.put(RECAPTCHA_HTML, html); return new ModelAndView("/addNewUser", modelMap); } @RequestMapping(method=RequestMethod.POST, value="/addNewUser.do") public String addNewUser(@Valid User user, BindingResult result, @RequestParam("recaptcha_challenge_field") String challenge, @RequestParam("recaptcha_response_field") String response, HttpServletRequest request, Model model) { verifyBinding(result); String remoteAddr = request.getRemoteAddr(); ReCaptchaResponse reCaptchaResponse = reCaptcha.checkAnswer(remoteAddr, challenge, response); if (!reCaptchaResponse.isValid()) { result.rejectValue("captcha", "errors.badCaptcha"); } model.addAttribute("user", user); if (result.hasErrors()) { result.reject("form.problems"); return "addNewUser"; } return "redirect:showContent.do"; } @InitBinder public void initBinder(WebDataBinder binder) { binder.setAllowedFields(new String[] { "firstName", "lastName", "email", "username", "password", "recaptcha_challenge_field", "recaptcha_response_field" }); } private void verifyBinding(BindingResult result) { String[] suppressedFields = result.getSuppressedFields(); if (suppressedFields.length > 0) { throw new RuntimeException("You've attempted to bind fields that haven't been allowed in initBinder(): " + StringUtils.join(suppressedFields, ", ")); } } } Here is the addNewUser.jsp element on the form page for the above controller: <tr> <td>Please prove you're a person</td> <td>${reCaptchaHtml}</td> <td><form:errors path="captcha" cssStyle="color:red"></form:errors></td> </tr> Could you help me understand what am I missing here? Thanks for reply.

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  • .NET Impersonate not working!

    - by Jagd
    I have a webpage that allows a user to upload a file to a network share. When I run the webpage locally (within VS 2008) and try to upload the file, it works! However, when I deploy the website to the webserver and try to upload the file through the webpage, it doesn't work! The error being returned to me on the webserver says "Access to the path '\05prd1\emp\test.txt' is denied. So, obviously, this is a permissions issue. The network share is configured to allow full access both to me (NT authentication) and to the NETWORK SERVICE (which is .NET's default account and what we have set in our IIS application pool as the default user for this website). I have tried this with and without authentication, and neither one works on the webserver, yet both ways works on my local machine. The code that does the file upload is below. Please note that the code below includes impersonation, but like I said above, I've tried it with and without impersonation and it's made no difference. if (fuCourses.PostedFile != null && fuCourses.PostedFile.ContentLength > 0) { System.Security.Principal.WindowsImpersonationContext impCtx; impCtx = ((System.Security.Principal.WindowsIdentity)User.Identity).Impersonate(); try { lblMsg.Visible = true; // The courses file to be uploaded HttpPostedFile file = fuCourses.PostedFile; string fName = file.FileName; string uploadPath = "\\\\05prd1\\emp\\"; // Get the file name if (fName.Contains("\\")) { fName = fName.Substring( fName.LastIndexOf("\\") + 1); } // Delete the courses file if it is already on \\05prd1\emp FileInfo fi = new FileInfo(uploadPath + fName); if (fi != null && fi.Exists) { fi.Delete(); } // Open new file stream on \\05prd1\emp and read bytes into it from file upload FileStream fs = File.Create(uploadPath + fName, file.ContentLength); using (Stream stream = file.InputStream) { byte[] b = new byte[4096]; int read; while ((read = stream.Read(b, 0, b.Length)) > 0) { fs.Write(b, 0, read); } } fs.Close(); lblMsg.Text = "File Successfully Uploaded"; lblMsg.ForeColor = System.Drawing.Color.Green; } catch (Exception ex) { lblMsg.Text = ex.Message; lblMsg.ForeColor = System.Drawing.Color.Red; } finally { impCtx.Undo(); } } Any help on this would be very appreciated!

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  • WinRT ControlTemplate ItemsPanel

    - by user1427149
    I'm new to WinRT and am trying to create a standard gridview which has a group heading with a number of tiles beneath it. That bit is easy. I'm trying to modify it so that beneath the grid of tiles I can also add a footer using the containers style: <GridView x:Name="itemGridView" AutomationProperties.AutomationId="ItemGridView" AutomationProperties.Name="Grouped Items" Margin="116,0,40,46" ItemsSource="{Binding Source={StaticResource groupedItemsViewSource}}" ItemTemplate="{StaticResource Project200x200ItemTemplate}" SelectionMode="None" IsItemClickEnabled="True" ItemClick="ItemView_ItemClick"> <GridView.ItemsPanel> <ItemsPanelTemplate> <VirtualizingStackPanel Orientation="Horizontal"/> </ItemsPanelTemplate> </GridView.ItemsPanel> <GridView.GroupStyle> <GroupStyle> <GroupStyle.HeaderTemplate> <DataTemplate> <Grid Margin="1,0,0,6"> <Button AutomationProperties.Name="Group Title" Content="{Binding Name}" Click="Header_Click" Style="{StaticResource TextButtonStyle}" FontWeight="{Binding IsSelected, ConverterParameter=FontWeight, Converter={StaticResource BooleanToFontWeightConverter}}" /> </Grid> </DataTemplate> </GroupStyle.HeaderTemplate> <GroupStyle.Panel> <ItemsPanelTemplate> <VariableSizedWrapGrid Background="Red" Orientation="Vertical" Margin="0,0,40,0" /> </ItemsPanelTemplate> </GroupStyle.Panel> <GroupStyle.ContainerStyle> <Style TargetType="GroupItem"> <Setter Property="Template"> <Setter.Value> <ControlTemplate> <StackPanel> <ContentPresenter/> <ItemsPresenter/> <TextBlock Text="*** End of group ***"/> </StackPanel> </ControlTemplate> </Setter.Value> </Setter> </Style> </GroupStyle.ContainerStyle> </GroupStyle> </GridView.GroupStyle> </GridView> This almost works but after adding the container style, the grid of tiles no longer shows... the group header and 'End of group' textblock is showing, but I've lost the tile grid. Can anyone spot what I'm doing wrong...?

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  • How would you organize this Javascript?

    - by Anurag
    How do you usually organize complex web applications that are extremely rich on the client side. I have created a contrived example to indicate the kind of mess it's easy to get into if things are not managed well for big apps. Feel free to modify/extend this example as you wish - http://jsfiddle.net/NHyLC/1/ The example basically mirrors part of the comment posting on SO, and follows the following rules: Must have 15 characters minimum, after multiple spaces are trimmed out to one. If Add Comment is clicked, but the size is less than 15 after removing multiple spaces, then show a popup with the error. Indicate amount of characters remaining and summarize with color coding. Gray indicates a small comment, brown indicates a medium comment, orange a large comment, and red a comment overflow. One comment can only be submitted every 15 seconds. If comment is submitted too soon, show a popup with appropriate error message. A couple of issues I noticed with this example. This should ideally be a widget or some sort of packaged functionality. Things like a comment per 15 seconds, and minimum 15 character comment belong to some application wide policies rather than being embedded inside each widget. Too many hard-coded values. No code organization. Model, Views, Controllers are all bundled together. Not that MVC is the only approach for organizing rich client side web applications, but there is none in this example. How would you go about cleaning this up? Applying a little MVC/MVP along the way? Here's some of the relevant functions, but it will make more sense if you saw the entire code on jsfiddle: /** * Handle comment change. * Update character count. * Indicate progress */ function handleCommentUpdate(comment) { var status = $('.comment-status'); status.text(getStatusText(comment)); status.removeClass('mild spicy hot sizzling'); status.addClass(getStatusClass(comment)); } /** * Is the comment valid for submission */ function commentSubmittable(comment) { var notTooSoon = !isTooSoon(); var notEmpty = !isEmpty(comment); var hasEnoughCharacters = !isTooShort(comment); return notTooSoon && notEmpty && hasEnoughCharacters; } // submit comment $('.add-comment').click(function() { var comment = $('.comment-box').val(); // submit comment, fake ajax call if(commentSubmittable(comment)) { .. } // show a popup if comment is mostly spaces if(isTooShort(comment)) { if(comment.length < 15) { // blink status message } else { popup("Comment must be at least 15 characters in length."); } } // show a popup is comment submitted too soon else if(isTooSoon()) { popup("Only 1 comment allowed per 15 seconds."); } });

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  • Multiple Graphics2D Objects

    - by Trizicus
    I have a Graphics object of JPanel and that is working fine: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Rectangle2D; import javax.swing.JPanel; public class GraphicsTest extends JPanel { private Graphics2D g2d; private String state; private int x, y; @Override public void paintComponent(Graphics g) { super.paintComponent(g); g2d = (Graphics2D) g; g2d.setClip(0, 0, getWidth(), getHeight()); g2d.setColor(Color.BLACK); g2d.drawString("STATE: " + state, 5, 15); g2d.drawString("Mouse Position: " + x + ", " + y, 5, 30); g2d.setColor(Color.red); Rectangle2D r2d = new Rectangle2D.Double(x,y,10,10); g2d.draw(r2d); Test t = new Test(); super.add(t); repaint(); } public void setState(String state) { this.state = state; } public String getState() { return state; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } } I was experimenting with a new Graphics component and when I instantiate a new Test and add it in GraphicsTest nothing happens. What is it that I am doing wrong? import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Rectangle2D; import javax.swing.JComponent; public class Test extends JComponent { private Graphics2D g2d; private String state; private int x, y; @Override public void paintComponent(Graphics g) { super.paintComponent(g); g2d = (Graphics2D) g.create(); g2d.setColor(Color.GREEN); g2d.fill(new Rectangle2D.Double(60, 60, 10, 10)); repaint(); } public void setState(String state) { this.state = state; } public String getState() { return state; } public void setX(int x) { this.x = x; } public void setY(int y) { this.y = y; } } Thanks!

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  • ASP.NET site sometimes freezing up and/or showing odd text at top of the page while loading, on load

    - by MGOwen
    I have various servers (dev, 2 x test, 2 x prod) running the same asp.net site. The test and prod servers are in load-balanced pairs (prod1 with prod2, and test1 with test2). The test server pair is exhibiting some kind of (super) slowdown or freezing during about one in ten page loads. Sometimes a line of text appears at the very top of the page which looks something like: 00 OK Date: Thu, 01 Apr 2010 01:50:09 GMT Server: Microsoft-IIS/6.0 X-Powered_By: ASP.NET X-AspNet-Version:2.0.50727 Cache-Control:private Content-Type:text/html; charset=ut (the beginning and end are "cut off".) Has anyone seen anything like this before? Any idea what it means or what's causing it? Edit: I often see this too when clicking something - it comes up as red text on a yellow page: XML Parsing Error: not well-formed Location: http://203.111.46.211/3DSS/CompanyCompliance.aspx?cid=14 Line Number 1, Column 24:2mMTehON9OUNKySVaJ3ROpN" / -----------------------^ If I go back and click again, it works (I see the page I clicked on, not the above error message). Update: ...And, instead of the page loading, I sometimes just get a white screen with text like this in black (looks a lot like the above text): HTTP/1.1 302 Found Date: Wed, 21 Apr 2010 04:53:39 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET X-AspNet-Version: 2.0.50727 Location: /3DSS/EditSections.aspx?id=3&siteId=56&sectionId=46 Set-Cookie: .3DSS=A6CAC223D0F2517D77C7C68EEF069ABA85E9392E93417FFA4209E2621B8DCE38174AD699C9F0221D30D49E108CAB8A828408CF214549A949501DAFAF59F080375A50162361E4AA94E08874BF0945B2EF; path=/; HttpOnly Cache-Control: private Content-Type: text/html; charset=utf-8 Content-Length: 184 object moved here Where "here" is a link that points to a URL just like the one I'm requesting, except with an extra folder in it, meaning something like: http://123.1.2.3/MySite//MySite/Page.aspx?option=1 instead of: http://123.1.2.3/MySite/Page.aspx?option=1 Update: A colleague of mine found some info saying it might be because the test servers are running iis in 64 bit (64bit win 2003) (prod servers are 32 bit win 2003). So we tried telling IIS to use 32 bit: **cscript %SYSTEMDRIVE%\inetpub\adminscripts\adsutil.vbs SET W3SVC/AppPools/Enable32bitAppOnWin64 1 %SYSTEMROOT%\Microsoft.NET\Framework\v2.0.50727\aspnet_regiis.exe -i ** (from this MS support page) But iis stopped working altogether (got "server unavailable" on a white page instead of web sites). Reversing the above (see the link) didn't work at first either. The ASP.NET tab disappeared from our IIS web site properties and we had to mess around for an hour uninstalling (aspnet_regiis.exe -u) and reinstalling 32 bit ASP.NET and adding Default.aspx manually back into default documents. We'll probably try again in a few days, if anyone has anything to add in the meantime, please do.

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  • Is there a way to handle the dynamic change of a dropdown for a single row in a grid-based datawindo

    - by TomatoSandwich
    Is there a way to handle the dynamic change of a dropdown for a single row in a grid-based datawindow? Example: NAME LIKABILITY PURCHASED IN COLOUR (Text) (DropDown*) (Text) (Text) Bananas [Good] Hands Yellow [Bad] [Bananas are good] Apples [Good] Bags Red [Bad] Given the above is a grid-based datawindow, where the fields 'NAME','PURCHASED IN' and 'COLOUR' are text fields, where as the 'LIKABILITY' field is a dropdown*. I say dropdown* because the same visual representation can be created by using a DropDownList (hardcoded within the datawindow element at design time), or a DropDownDW (or DDDW, a select statement that can be based on other elements in the datawindow). However, there is no way I can get 'Bananas' having it's 3 dropdowns, while Apples has only 2. If I enter multiple rows of 'Bananas', then all rows have 3 dropdowns, but as soon as I add an Apples row, all dropdowns revert to 2 selections. To attempt to achieve this functionality, I have tried the following options: -- 1) dw_1.Object.likability.values("Good~tG/Bad~tB/Bananas are good~tDRWHO") on ue_itemchange when editing NAME. FAILS: edits all instances of LIKABILITY instead of the current row. -- 2) Duplicate Dropdowns, having one filtered, one unfiltered selection list per row, visible based on NAME selection. FAILS: can't set visibility/overlapping columns on grid-based datawindow. (Source) -- 3) Hard-code display value as Database value, or Vice Versa. Have 'GOOD','BAD','BANANASAREGOOD' as the display and database values, and change handling of options from G, B, DRWHO to these new values. FAILS: 3rd option appears for all rows, still selectable on Apple rows, which is wrong. -- 4) DDDW retrieve list of options for dropdown. Create a DDDW that uses the value of NAME to determine what selections it should have for the dropdown. FAILS: edits all instances of the dropdown, not just the current row. -- 5) DDDW retrieve counter of options available (if B then 3 else 2), then have duplicate dropdown columns that protect/unprotect based on DDDW counter. FAILS: Can't autoselect dddw value to populate column to cause protect on other two columns, ugly solution in any case. -- There is now a bounty on this question for anyone who can give me a solution that will enable me to edit a dropdown column for a single row on a grid-based datawindow in PB 10.5

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  • Possible to do rounded corners in custom Progressbar progressDrawable?

    - by b-ryce
    I have a progress bar that is supposed to look like the attached image: And I've made it a long way. I'm very close the only part that isn't working is the rounded corners for the progressDrawable. Here is what mine looks like. (Notice, circled in red, that the fill inside the white outline does not have rounded corners): So, I've found a couple of ways to make this work when the progress bar is colored in with a shape, gradient, or color. BUT, I can't get it with an image as the progressDrawable. Here is my class that extends ProgressBar public class RoundedProgressBar extends ProgressBar{ private Paint paint; public RoundedProgressBar(Context context) { super(context); setup(); } public RoundedProgressBar(Context context, AttributeSet attrs) { super(context, attrs); setup(); } public RoundedProgressBar(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); setup(); ; } protected void setup() { paint = new Paint(); } @Override protected synchronized void onDraw(Canvas canvas) { // First draw the regular progress bar, then custom draw our text super.onDraw(canvas); paint.setColor(Color.WHITE); paint.setStyle(Paint.Style.STROKE); RectF r = new RectF(0,0,getWidth()-1,getHeight()-1); canvas.drawRoundRect(r,getHeight()/2,getHeight()/2, paint); } } Here is my selector: <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@android:id/background" android:drawable="@drawable/slider_track" /> <item android:id="@android:id/secondaryProgress" android:drawable="@drawable/slider_track" /> <item android:id="@android:id/progress" android:drawable="@drawable/slider_track_progress" /> </layer-list> Here are the images used in the selector: slider_track- slider_track_progress- Here is where I embed my progressbar in the layout for my activity <com.android.component.RoundedProgressBar android:id="@+id/player_hp_bar" android:layout_width="fill_parent" android:layout_height="36dip" android:layout_marginLeft="30dip" android:layout_marginRight="30dip" android:max="100" style="?android:attr/progressBarStyleHorizontal" android:progressDrawable="@drawable/slider_layer_list" android:progress="20" android:maxHeight="12dip" android:minHeight="12dip" /> Anyone know how to make this work?

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  • jQuery: How to find and change multiply th classes between n & n

    - by Ravex
    Hi everyone. I have some table structure: <tr class="row-2"><tr> <tr class="row-3">..<tr> <tr class="row-4">..<tr> <tr class="row-5">..<tr> <tr class="row-6">..<tr> <tr class="row-7"><tr> <tr class="row-8">..<tr> <tr class="row-9">..<tr> <tr class="row-10">..<tr> <tr class="row-11">..<tr> ...etc for this example TR with classes "row-2" and "row-7" is parrent product link wich expand child rows. <script> $(function() { $('tr.parent') .css("cursor","pointer") .css("color","red") .attr("title","Click to expand/collapse") .click(function(){ $(this).siblings('.child-'+this.id).toggle(); }); $('tr[@class^=child-]').hide().children('td'); }); </script> Rows -3...-6 is child of row-2 and Rows -8...-11 is child of row-7 How i can find row-2, row-7, etc then add second class "parrent" and ID similar class (id="row-2", id="row-7", etc)? Also i need add in each TR between row-2 and row-7 class equal previous parrent row. In bottom line i need something like this: <tr class="row-2 parrent" id="row-2"><tr> <tr class="row-3 child-row2">..<tr> <tr class="row-4 child-row2">..<tr> <tr class="row-5 child-row2">..<tr> <tr class="row-6 child-row2">..<tr> <tr class="row-7 parrent" id="row-7"><tr> <tr class="row-8 child-row7">..<tr> <tr class="row-9 child-row7">..<tr> <tr class="row-10 child-row7">..<tr> <tr class="row-11 child-row7">..<tr> ..etc Thanks for any Help.

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  • Getting problem in Java OpenCV code.

    - by Chetan
    I had successfully compile my java code in Eclipse with name FaceDetection.java... I am getting an Exception in thread "main" java.lang.NoSuchMethodError: main.... Please help me to remove this Exception.. Here is the code import java.awt.; import java.awt.event.; import java.awt.image.MemoryImageSource; import hypermedia.video.OpenCV; @SuppressWarnings("serial") public class FaceDetection extends Frame implements Runnable { /** * Main method. * @param String[] a list of user's arguments passed from the console to this program */ public static void main( String[] args ) { System.out.println( "\nOpenCV face detection sample\n" ); new FaceDetection(); } // program execution frame rate (millisecond) final int FRAME_RATE = 1000/30; OpenCV cv = null; // OpenCV Object Thread t = null; // the sample thread // the input video stream image Image frame = null; // list of all face detected area Rectangle[] squares = new Rectangle[0]; /** * Setup Frame and Object(s). */ FaceDetection() { super( "Face Detection Sample" ); // OpenCV setup cv = new OpenCV(); cv.capture( 320, 240 ); cv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT ); // frame setup this.setBounds( 100, 100, cv.width, cv.height ); this.setBackground( Color.BLACK ); this.setVisible( true ); this.addKeyListener( new KeyAdapter() { public void keyReleased( KeyEvent e ) { if ( e.getKeyCode()==KeyEvent.VK_ESCAPE ) { // ESC : release OpenCV resources cv.dispose(); System.exit(0); } } } ); // start running program t = new Thread( this ); t.start(); } /** * Draw video frame and each detected faces area. */ public void paint( Graphics g ) { // draw image g.drawImage( frame, 0, 0, null ); // draw squares g.setColor( Color.RED ); for( Rectangle rect : squares ) g.drawRect( rect.x, rect.y, rect.width, rect.height ); } /** * Execute this sample. */ @SuppressWarnings("static-access") public void run() { while( t!=null && cv!=null ) { try { t.sleep( FRAME_RATE ); // grab image from video stream cv.read(); // create a new image from cv pixels data MemoryImageSource mis = new MemoryImageSource( cv.width, cv.height, cv.pixels(), 0, cv.width ); frame = createImage( mis ); // detect faces squares = cv.detect( 1.2f, 2, OpenCV.HAAR_DO_CANNY_PRUNING, 20, 20 ); // of course, repaint repaint(); } catch( InterruptedException e ) {;} } } }

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  • jQuery - draggable images on iPad / iPhone - how to integrate event.preventDefault();?

    - by Tim
    Hello! I use jQuery, jQuery UI and jQuery mobile to build a web application for iPhone / iPad. Now I create images and they should be draggable, so I did this: <!DOCTYPE html> <html> <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8"> <title>Drag - Test</title> <link rel="stylesheet" href="http://code.jquery.com/mobile/1.0a2/jquery.mobile-1.0a2.min.css" /> <script src="http://code.jquery.com/jquery-1.4.4.min.js"></script> <script src="http://code.jquery.com/mobile/1.0a2/jquery.mobile-1.0a2.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.7/jquery-ui.min.js"></script> </head> <body> <div> <div style="width:500px;height:500px;border:1px solid red;"> <img src="http://upload.wikimedia.org/wikipedia/en/thumb/9/9e/JQuery_logo.svg/200px-JQuery_logo.svg.png" class="draggable" alt="jQuery logo" /> <img src="http://upload.wikimedia.org/wikipedia/en/a/ab/Apple-logo.png" class="draggable" alt="Apple Inc. logo" /> </div> </div> </body> <script type="text/javascript"> $(document).ready(function() { $(".draggable").draggable(); }); </script> </html> Here you can see the live example: http://jsbin.com/igena4/ The problem is, that the whole page want to scroll. I searched in Apple's HTML5 examples and found this to prevent the scrolling of the page, so that the image is draggable: ... onDragStart: function(event) { // stop page from panning on iPhone/iPad - we're moving a note, not the page event.preventDefault(); ... } But the problem is for me, how can I include this into my jQuery? Where do I get event? Best Regards.

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  • php , SimpleXML, while loop

    - by Michael
    I'm trying to get some information from ebay api and store it in database . I used simple xml to extract the information but I have a small issue as the information is not displayed for some items . if I make a print to the simple_xml I can see very well that the information is provided by ebay api . I have $items = "220617293997,250645537939,230485306218,110537213815,180519294810"; $number_of_items = count(explode(",", $items)); $xml = $baseClass->getContent("http://open.api.ebay.com/shopping?callname=GetMultipleItems&responseencoding=XML&appid=Morcovar-c74b-47c0-954f-463afb69a4b3&siteid=0&version=525&IncludeSelector=ItemSpecifics&ItemID=$items"); writeDoc($xml, "api.xml"); //echo $xml; $getvalues = simplexml_load_file('api.xml'); // print_r($getvalue); $number = "0"; while($number < 6) { $item_number = $getvalues->Item[$number]->ItemID; $location = $getvalues->Item[$number]->Location; $title = $getvalues->Item[$number]->Title; $price = $getvalues->Item[$number]->ConvertedCurrentPrice; $manufacturer = $getvalues->Item[$number]->ItemSpecifics->NameValueList[3]->Value; $model = $getvalues->Item[$number]->ItemSpecifics->NameValueList[4]->Value; $mileage = $getvalues->Item[$number]->ItemSpecifics->NameValueList[5]->Value; echo "item number = $item_number <br>localtion = $location<br>". "title = $title<br>price = $price<br>manufacturer = $manufacturer". "<br>model = $model<br>mileage = $mileage<br>"; $number++; } the above code returns item number = localtion = title = price = manufacturer = model = mileage = item number = 230485306218 localtion = Coventry, Warwickshire title = 2001 LAND ROVER RANGE ROVER VOGUE AUTO GREEN price = 3635.07 manufacturer = Land Rover model = Range Rover mileage = 76000 item number = 220617293997 localtion = Crawley, West Sussex title = 2004 CITROEN C5 HDI LX RED price = 3115.77 manufacturer = Citroen model = C5 mileage = 76000 item number = 180519294810 localtion = London, London title = 2000 VOLKSWAGEN POLO 1.4 SILVER 16V NEED GEAR BOX price = 905.06 manufacturer = Right-hand drive model = mileage = Standard Car item number = localtion = title = price = manufacturer = model = mileage = As you can see the information is not retrieved for a few items ... If I replace the $number manually like " $item_number = $getvalues-Item[4]-ItemID;" works well for any number .

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  • Finding what makes strings unique in a list, can you improve on brute force?

    - by Ed Guiness
    Suppose I have a list of strings where each string is exactly 4 characters long and unique within the list. For each of these strings I want to identify the position of the characters within the string that make the string unique. So for a list of three strings abcd abcc bbcb For the first string I want to identify the character in 4th position d since d does not appear in the 4th position in any other string. For the second string I want to identify the character in 4th position c. For the third string it I want to identify the character in 1st position b AND the character in 4th position, also b. This could be concisely represented as abcd -> ...d abcc -> ...c bbcb -> b..b If you consider the same problem but with a list of binary numbers 0101 0011 1111 Then the result I want would be 0101 -> ..0. 0011 -> .0.. 1111 -> 1... Staying with the binary theme I can use XOR to identify which bits are unique within two binary numbers since 0101 ^ 0011 = 0110 which I can interpret as meaning that in this case the 2nd and 3rd bits (reading left to right) are unique between these two binary numbers. This technique might be a red herring unless somehow it can be extended to the larger list. A brute-force approach would be to look at each string in turn, and for each string to iterate through vertical slices of the remainder of the strings in the list. So for the list abcd abcc bbcb I would start with abcd and iterate through vertical slices of abcc bbcb where these vertical slices would be a | b | c | c b | b | c | b or in list form, "ab", "bb", "cc", "cb". This would result in four comparisons a : ab -> . (a is not unique) b : bb -> . (b is not unique) c : cc -> . (c is not unique) d : cb -> d (d is unique) or concisely abcd -> ...d Maybe it's wishful thinking, but I have a feeling that there should be an elegant and general solution that would apply to an arbitrarily large list of strings (or binary numbers). But if there is I haven't yet been able to see it. I hope to use this algorithm to to derive minimal signatures from a collection of unique images (bitmaps) in order to efficiently identify those images at a future time. If future efficiency wasn't a concern I would use a simple hash of each image. Can you improve on brute force?

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  • Animating gradient displays line artifacts in ActionScript

    - by TheDarkIn1978
    i've programatically created a simple gradient (blue to red) sprite rect using my own basic class called GradientRect, but moving or animation the sprite exhibits line artifacts. when the sprite is rotating, it kind of resembles bad reception of an old television set. i'm almost certain the cause is because each line slice of the gradient is vector so there are gaps between the lines - this is visible when the sprite is zoomed in. var colorPickerRect:GradientRect = new GradientRect(200, 200, 0x0000FF, 0xFF0000); addChild(colorPickerRect); colorPickerRect.cacheAsBitmap = true; colorPickerRect.x = colorPickerRect.y = 100; colorPickerRect.addEventListener(Event.ENTER_FRAME, rotate); function rotate(evt:Event):void { evt.target.rotation += 1; } ________________________ //CLASS PACKAGE package { import flash.display.CapsStyle; import flash.display.GradientType; import flash.display.LineScaleMode; import flash.display.Sprite; import flash.geom.Matrix; public class GradientRect extends Sprite { public function GradientRect(gradientRectWidth:Number, gradientRectHeight:Number, ...leftToRightColors) { init(gradientRectWidth, gradientRectHeight, leftToRightColors); } private function init(gradientRectWidth:Number, gradientRectHeight:Number, leftToRightColors:Array):void { var leftToRightAlphas:Array = new Array(); var leftToRightRatios:Array = new Array(); var leftToRightPartition:Number = 255 / (leftToRightColors.length - 1); var pixelColor:Number; var i:int; //Push arrays for (i = 0; i < leftToRightColors.length; i++) { leftToRightAlphas.push(1); leftToRightRatios.push(i * leftToRightPartition); } //Graphics matrix and lineStyle var leftToRightColorsMatrix:Matrix = new Matrix(); leftToRightColorsMatrix.createGradientBox(gradientRectWidth, 1); graphics.lineStyle(1, 0, 1, false, LineScaleMode.NONE, CapsStyle.NONE); for (i = 0; i < gradientRectWidth; i++) { graphics.lineGradientStyle(GradientType.LINEAR, leftToRightColors, leftToRightAlphas, leftToRightRatios, leftToRightColorsMatrix); graphics.moveTo(i, 0); graphics.lineTo(i, gradientRectHeight); } } } } how can i solve this problem?

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  • server|configuration problem, a php script just die with no error log & no reason

    - by Roberto
    Hi (first of all, thanks for your attention & sorry for my bad english hahaha also this is not a programming error, or thats what I think, I think this is an error in some configuration of the server or something else but I dont know what) I have a php script (is running like a process of linux, its not running on the web browser) that send SMS via SMPP on the port 2055 (using sockets in php) & then inserts like 10,000 rows into a dababase on MySQL, the script gets the data from a XML file; firts it was running in a shared server (Hostgator is our hosting provider) & at the begining it worked fine, with no trouble, but 5 months later an error appear, the process just die with no reason, the script only sent & inserted 700 rows in the table of the database & the process didnt show any warning or error, nothing appears in the error logs, & I didnt make any change in the script Hostgator never helped us hahaha so we decided to move the script from the shared server to a dedicated server; I thought it was a memory problem or something like that, but when we move the script to the dedicated server the problem just get worse, the script die when has just sent & inserted 40 to 50 rows to the database the information about this error: the shared server is on Red Hat 4.1.2-46 & the dedicated server is on CentOS 5.4 I have commented the line that sends the SMS, & the problem remains in the shared server, at the begining the script was fine, but then the script started to die when has just inserted 700 aprox. in the database, & now the script is dying when has inserted 2500 rows, its better but we didnt change anything in the dedicated server, the script dies when has just inserted like 40 row in the table the script, before it dies, change to a zombie process & we dont know why the usage of memory appears to be 0.3%, and of the cpu appears to be 0.7% to 1% I have changed the max memory limit of php to 128Mb, and even to -1 (so php wont have any limit) but the problem remains we have the limit of 50 connections of mysql at the same time, so I think this is not the problem Im using mysqli to connect from php to mysql Hostgator report that they haven't made any change or update in the servers what could be the problem?? what should I do??? what should I search??? is something in the logic Im missing?? what steps do I have to follow when managing & searching problems of process on Linux??? thank you very much, I think this is not a programming problem, but you have more experience than me, you can tell me thanks!!! bye!!! :)

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  • Getting my string value from my form into my class( not another form)

    - by jovany
    Hello all, I have a question regarding the some data which is being transfered from one form to my class. It's not going quite the way i'd like to , so I figured maybe there is someone who could help me. This is my code in my class Public Class DrawableTextBox Inherits Drawable Dim i_testString As Integer Private s_InsertLabel As String Private drawFont As Font Public Sub New(ByVal fore_color As Color, ByVal fill_color As Color, Optional ByVal line_width As Integer = 0, Optional ByVal new_x1 As Integer = 0, Optional ByVal new_y1 As Integer = 0, Optional ByVal new_x2 As Integer = 1, Optional ByVal new_y2 As Integer = 1) MyBase.New(fore_color, fill_color, line_width) X1 = new_x1 Y1 = new_y1 X2 = new_x2 Y2 = new_y2 Trace.WriteLine(s_InsertLabel) End Sub Friend WriteOnly Property _textBox() As String Set(ByVal Value As String) s_InsertLabel = Value Trace.WriteLine(s_InsertLabel) End Set End Property ' Draw the object on this Graphics surface. Public Overrides Sub Draw(ByVal gr As System.Drawing.Graphics) ' Make a Rectangle representing this rectangle. Dim rect As Rectangle = GetBounds() ' Fill the rectangle as usual. Dim fill_brush As New SolidBrush(FillColor) gr.FillRectangle(fill_brush, rect) fill_brush.Dispose() ' See if we're selected. If IsSelected Then ' Draw the rectangle highlighted. Dim highlight_pen As New Pen(Color.Yellow, LineWidth) gr.DrawRectangle(highlight_pen, rect) highlight_pen.Dispose() ' Draw grab handles. Trace.WriteLine("drawing the lines for my textbox") DrawGrabHandle(gr, X1, Y1) DrawGrabHandle(gr, X1, Y2) DrawGrabHandle(gr, X2, Y2) DrawGrabHandle(gr, X2, Y1) Else 'TextBox() Dim fg_pen As New Pen(Color.Red, LineWidth) 'Dim fontSize As Single = 0.1 + ((Y2 - Y1) / 2) Dim fontSize As Single = 20 Try Dim drawFont As New Font("Arial", fontSize, FontStyle.Bold) Trace.WriteLine(s_InsertLabel) gr.DrawString(s_InsertLabel, drawFont, Brushes.Brown, X1, Y1) Catch ex As ArgumentException End Try gr.DrawRectangle(Pens.Azure, rect) ' gr.DrawRectangle(fg_pen, rect) fg_pen.Dispose() End If End Sub Public Function GetValueString(ByVal ValueType As String) Return ValueType End Function ' Return the object's bounding rectangle. Public Overrides Function GetBounds() As System.Drawing.Rectangle Return New Rectangle( _ Min(X1, X2), _ Min(Y1, Y2), _ Abs(100), _ Abs(30)) Trace.WriteLine("don't forget to make variables in GetBounds DrawableTextbox") End Function ' Return True if this point is on the object. Public Overrides Function IsAt(ByVal x As Integer, ByVal y As Integer) As Boolean Return (x >= Min(X1, X2)) AndAlso _ (x <= Max(X1, X2)) AndAlso _ (y >= Min(Y1, Y2)) AndAlso _ (y <= Max(Y1, Y2)) End Function ' Move the second point. Public Overrides Sub NewPoint(ByVal x As Integer, ByVal y As Integer) X2 = x Y2 = y End Sub ' Return True if the object is empty (e.g. a zero-length line). Public Overrides Function IsEmpty() As Boolean Return (X1 = X2) AndAlso (Y1 = Y2) End Function End Class I've got a form with a textbox( form1) in which the text is being inserted and passed through a buttonclick (al via properties). As you can see I've placed several traces and in the property of the class my trace works fine , however if I look in my Draw function it is already gone. And I get a blank trace. Does anyone know what's happening here. thanks in advance. (forgive me I'm new )

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  • How do you implement position-sensitive zooming inside a JScrollPane?

    - by tucuxi
    I am trying to implement position-sensitive zooming inside a JScrollPane. The JScrollPane contains a component with a customized 'paint' that will draw itself inside whatever space it is allocated - so zooming is as easy as using a MouseWheelListener that resizes the inner component as required. But I also want zooming into (or out of) a point to keep that point as central as possible within the resulting zoomed-in (or -out) view (this is what I refer to as 'position-sensitive' zooming), similar to how zooming works in google maps. I am sure this has been done many times before - does anybody know the "right" way to do it under Java Swing?. Would it be better to play with Graphic2D's transformations instead of using JScrollPanes? Sample code follows: package test; import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import javax.swing.*; public class FPanel extends javax.swing.JPanel { private Dimension preferredSize = new Dimension(400, 400); private Rectangle2D[] rects = new Rectangle2D[50]; public static void main(String[] args) { JFrame jf = new JFrame("test"); jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jf.setSize(400, 400); jf.add(new JScrollPane(new FPanel())); jf.setVisible(true); } public FPanel() { // generate rectangles with pseudo-random coords for (int i=0; i<rects.length; i++) { rects[i] = new Rectangle2D.Double( Math.random()*.8, Math.random()*.8, Math.random()*.2, Math.random()*.2); } // mouse listener to detect scrollwheel events addMouseWheelListener(new MouseWheelListener() { public void mouseWheelMoved(MouseWheelEvent e) { updatePreferredSize(e.getWheelRotation(), e.getPoint()); } }); } private void updatePreferredSize(int n, Point p) { double d = (double) n * 1.08; d = (n > 0) ? 1 / d : -d; int w = (int) (getWidth() * d); int h = (int) (getHeight() * d); preferredSize.setSize(w, h); getParent().doLayout(); // Question: how do I keep 'p' centered in the resulting view? } public Dimension getPreferredSize() { return preferredSize; } private Rectangle2D r = new Rectangle2D.Float(); public void paint(Graphics g) { super.paint(g); g.setColor(Color.red); int w = getWidth(); int h = getHeight(); for (Rectangle2D rect : rects) { r.setRect(rect.getX() * w, rect.getY() * h, rect.getWidth() * w, rect.getHeight() * h); ((Graphics2D)g).draw(r); } } }

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