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  • Sending mail with a Php with a pdf attachment

    - by Jake
    Hi, I'm trying to send an email from the php mail command. I've been able to what I've tried so far, but can't seem to get it to work with an attachment. I've looked around the web and the best code I've found led me to this: $fileatt_name = 'JuneFlyer.pdf'; $fileatt_type = 'application/pdf'; $fileatt = 'JuneFlyer.pdf'; $file = fopen($fileatt,'rb'); $data = fread($file,filesize($fileatt)); $data = chunk_split(base64_encode($data)); $MAEmail = "[email protected]"; mail("$email_address", "$subject", "$message", "From: ".$MAEmail."\n". "MIME-Version: 1.0\n". "Content-type: text/html; charset=iso-8859-1". "--{$mime_boundary}\n" . "Content-Type: {$fileatt_type};\n" . " name=\"{$fileatt_name}\"\n" . "Content-Disposition: attachment;\n" . " filename=\"{$fileatt_name}\"\n" . "Content-Transfer-Encoding: base64\n\n" .$data. "\n\n" ); There are two problems when I do this. First, the contents of the email dissappear. Second, there is an error on the attachment. "Adobe Reader could not open June_flyer.pdf because it is either not a supported file type or because the file has been damaged (for example it was sent as an email attachment and wasn't correctly decoded)" Any ideas of how to deal with this? Thanks, JB

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  • Is it approproate it use django signals withing the same app

    - by Alex Lebedev
    Trying to add email notification to my app in the cleanest way possible. When certain fields of a model change, app should send a notification to a user. Here's my old solution: from django.contrib.auth import User class MyModel(models.Model): user = models.ForeignKey(User) field_a = models.CharField() field_b = models.CharField() def save(self, *args, **kwargs): old = self.__class__.objects.get(pk=self.pk) if self.pk else None super(MyModel, self).save(*args, **kwargs) if old and old.field_b != self.field_b: self.notify("b-changed") # Sevelar more events here # ... def notify(self, event) subj, text = self._prepare_notification(event) send_mail(subj, body, settings.DEFAULT_FROM_EMAIL, [self.user.email], fail_silently=True) This worked fine while I had one or two notification types, but after that just felt wrong to have so much code in my save() method. So, I changed code to signal-based: from django.db.models import signals def remember_old(sender, instance, **kwargs): """pre_save hanlder to save clean copy of original record into `old` attribute """ instance.old = None if instance.pk: try: instance.old = sender.objects.get(pk=instance.pk) except ObjectDoesNotExist: pass def on_mymodel_save(sender, instance, created, **kwargs): old = instance.old if old and old.field_b != instance.field_b: self.notify("b-changed") # Sevelar more events here # ... signals.pre_save.connect(remember_old, sender=MyModel, dispatch_uid="mymodel-remember-old") signals.post_save.connect(on_mymodel_save, sender=MyModel, dispatch_uid="mymodel-on-save") The benefit is that I can separate event handlers into different module, reducing size of models.py and I can enable/disable them individually. The downside is that this solution is more code and signal handlers are separated from model itself and unknowing reader can miss them altogether. So, colleagues, do you think it's worth it?

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  • javafx doesnt repaint label till method has finished, why?

    - by jeff porter
    Hi all, I have a JavaFX app with a some code like this... public class MainListener extends EventListener{ override public function event (arg0 : String) : Void { statusText.content = arg0; } } statusText is defined like this... var statusText = Text { x: 30 y: stageHeight - 40 font: Font { name: "Bitstream Vera Sans Bold" size: 10 } wrappingWidth: 420 fill: Color.WHITE textAlignment: TextAlignment.CENTER content: "Status: awaiting DBF file." }; I also have some other Javacode that is load data, much like this.. public ArrayList<CustomerRecord> read(EventListener listener) { ArrayList<CustomerRecord> listOfCustomerRecords = new ArrayList<CustomerRecord>(); listener.event("Status: Starting read"); // ** takes a while... List<Map<String, CustomerField>> customerRecords = new Reader(file).readData(listener); // ** long running method over. listener.event("Status: Loaded all customers, count:" + listOfCustomerRecords.size()); return listOfCustomerRecords; } Now while the last method is in its long running call, I would expect to see my statusText updated to have 'Status: Starting read', but its doesn't. Its only when the read() method returns that the text is updated. If its was 'straight' java I would presume that the long running job is hogging the CPU, or the statusText needed to have repaint() called on it. Can anyone give me any ideas? Thanks Jeff Porter

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  • How does one decrypt a PDF with an owner password, but no user password?

    - by Tony Meyer
    Although the PDF specification is available from Adobe, it's not exactly the simplest document to read through. PDF allows documents to be encrypted so that either a user password and/or an owner password is required to do various things with the document (display, print, etc). A common use is to lock a PDF so that end users can read it without entering any password, but a password is required to do anything else. I'm trying to parse PDFs that are locked in this way (to get the same privileges as you would get opening them in any reader). Using an empty string as the user password doesn't work, but it seems (section 3.5.2 of the spec) that there has to be a user password to create the hash for the admin password. What I would like is either an explanation of how to do this, or any code that I can read (ideally Python, C, or C++, but anything readable will do) that does this so that I can understand what I'm meant to be doing. Standalone code, rather than reading through (e.g.) the gsview source, would be best.

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  • How to make a mapped field inherited from a superclass transient in JPA?

    - by Russ Hayward
    I have a legacy schema that cannot be changed. I am using a base class for the common features and it contains an embedded object. There is a field that is normally mapped in the embedded object that needs to be in the persistence id for only one (of many) subclasses. I have made a new id class that includes it but then I get the error that the field is mapped twice. Here is some example code that is much simplified to maintain the sanity of the reader: @MappedSuperclass class BaseClass { @Embedded private Data data; } @Entity class SubClass extends BaseClass { @EmbeddedId private SubClassId id; } @Embeddable class Data { private int location; private String name; } @Embeddable class SubClassId { private int thingy; private int location; } I have tried @AttributeOverride but I can only get it to rename the field. I have tried to set it to updatable = false, insertable = false but this did not seem to work when used in the @AttributeOverride annotation. See answer below for the solution to this issue. I realise I could change the base class but I really do not want to split up the embedded object to separate the shared field as it would make the surrounding code more complex and require some ugly wrapping code. I could also redesign the whole system for this corner case but I would really rather not. I am using Hibernate as my JPA provider.

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  • Java process is not terminating after starting an external process

    - by tangens
    On Windows I've started a program "async.cmd" with a ProcessBuilder like this: ProcessBuilder processBuilder = new ProcessBuilder( "async.cmd" ); processBuilder.redirectErrorStream( true ); processBuilder.start(); Then I read the output of the process in a separate thread like this: byte[] buffer = new byte[ 8192 ]; while( !interrupted() ) { int available = m_inputStream.available(); if( available == 0 ) { Thread.sleep( 100 ); continue; } int len = Math.min( buffer.length, available ); len = m_inputStream.read( buffer, 0, len ); if( len == -1 ) { throw new CX_InternalError(); } String outString = new String( buffer, 0, len ); m_output.append( outString ); } Now it happened that the content of the file "async.cmd" was this: REM start a command window start cmd /k The process that started this extenal program terminated (process.waitFor() returned the exit value). Then I sent an readerThread.interrupt() to the reader thread and the thread terminated, too. But there was still a thread running that wasn't terminating. This thread kept my java application running even if it exited its main method. With the debugger (eclipse) I wasn't able to suspend this thread. After I quit the opened command window, my java program exited, too. Question How can I quit my java program while the command window stays open?

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  • iPhone: Cell imageViews repeating when loaded from url

    - by araid
    I'm developing a demo RSS reader for iPhone. I obviously have a tableview to display the feeds, and then a detailed view. Some of this feeds have a thumbnail that I want to display on cell.imageview of the table, and some don't. The problem is that when scrolling the table, loaded thumbnails start repeating on other cells, and I end up with a thumbnail on every cell. Here's a piece of my code. I may upload screenshots later - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: @"rssItemCell"]; if(nil == cell){ cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"rssItemCell"]autorelease]; } BlogRss *item = [[[self rssParser]rssItems]objectAtIndex:indexPath.row]; cell.textLabel.text = [item title]; cell.detailTextLabel.text = [item description]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; // Thumbnail if exists if(noticia.imagePath != nil){ NSData* imageData; @try { imageData = [[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:item.imagePath]]; } @catch (NSException * e) { //Some error while downloading data } @finally { item.image = [[UIImage alloc] initWithData:imageData]; [imageData release]; } } if(item.image != nil){ [[cell imageView] setImage:item.image]; } return cell; } Any help will be very appreciated.

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  • How do I get LongVarchar out param from SPROC in ADO.NET 2.0 with SQLAnywhere 10?

    - by todthomson
    Hi All, I have sproc 'up_selfassessform_view' which has the following parameters: in ai_eqidentkey SYSKEY in ai_acidentkey SYSKEY out as_eqcomments TEXT_STRING out as_acexplanation TEXT_STRING  -  which are domain objects - SYSKEY is 'integer' and TEXT_STRING is 'long varchar'. I can call the sproc fine from iSQL using the following code: create variable @eqcomments TEXT_STRING; create variable @acexamples TEXT_STRING; call up_selfassessform_view (75000146, 3, @eqcomments, @acexamples); select @eqcomments, @acexamples;  - which returns the correct values from the DB (so I know the SPROC is good). I have configured the out param in ADO.NET like so (which has worked up until now for 'integer', 'timestamp', 'varchar(255)', etc): SAParameter as_acexplanation = cmd.CreateParameter(); as_acexplanation.Direction = ParameterDirection.Output; as_acexplanation.ParameterName = "as_acexplanation"; as_acexplanation.SADbType = SADbType.LongVarchar; cmd.Parameters.Add(as_acexplanation); When I run the following code: SADataReader reader = cmd.ExecuteReader(); I receive the following error: Parameter[2]: the Size property has an invalid size of 0. Which (I suppose) makes sense... But the thing is, I don't know the size of the field (it's just "long varchar" it doesn't have a predetermined length - unlike varchar(XXX)). Anyhow, just for fun, I add the following: as_acexplanation.Size = 1000; and the above error goes away, but now when I call: as_acexplanation.Value i get back a string of length = 1000 which is just '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0...' (\0 repeated 1000 times). So I'm really really stuck... Any help one this one would be much appreciated. Cheers! ;) Tod T.

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  • Reading and writing XML over an SslStream

    - by Mark
    I want to read and write XML data over an SslStream. The data (written and read) consists of objects serialized by an XmlSerializer. I have tried the following; (left some details out for clarity!) TcpClient tcpClient = new TcpClient(server, port); SslStream sslStream = new SslStream(tcpClient.GetStream(), true, new RemoteCertificateValidationCallback(ValidateServerCertificate), null); sslStream.AuthenticateAsClient(server); XmlReader xmlReader = XmlReader.Create(sslStream,readerSettings); XmlWriter xmlWriter = XmlWriter.Create(sslStream,writerSettings); myClass c = new myClass (); XmlSerializer serializer = new XmlSerializer(typeof(myClass)); serializer.Serialize(xmlWriter, c); myClass c2 = (myClass )serializer.Deserialize(xmlReader); First of all, it appears that writing to the stream succeeds. But the XmlSerializer throws an error because of invalid XML. It appears that the first character read from the stream is '00' or a null-character. (I have googled this problem, and see a million people with the same 'problem', but no viable solution.) I can work around this 'issue' by using a StreamReader, read everything into a string and then use that string as input for another stream that the serializer can use. (Very dirty, but it works.) Second problem is, that when I try to use the same SslStream to write a second request, I do not get a response from the Reader. (The server DOES send a valid XML response though!) So the serializer.Serialize(xmlWriter, c3) works, but reading from the stream yields no results. I have tried several different classes that implement Stream. (StreamReader, XmlTextReader, etc.) Anyone has an idea how reading and writing XML data to and from an SslStream is supposed to work? Thanks in advance!

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  • Self-describing file format for gigapixel images?

    - by Adam Goode
    In medical imaging, there appears to be two ways of storing huge gigapixel images: Use lots of JPEG images (either packed into files or individually) and cook up some bizarre index format to describe what goes where. Tack on some metadata in some other format. Use TIFF's tile and multi-image support to cleanly store the images as a single file, and provide downsampled versions for zooming speed. Then abuse various TIFF tags to store metadata in non-standard ways. Also, store tiles with overlapping boundaries that must be individually translated later. In both cases, the reader must understand the format well enough to understand how to draw things and read the metadata. Is there a better way to store these images? Is TIFF (or BigTIFF) still the right format for this? Does XMP solve the problem of metadata? The main issues are: Storing images in a way that allows for rapid random access (tiling) Storing downsampled images for rapid zooming (pyramid) Handling cases where tiles are overlapping or sparse (scanners often work by moving a camera over a slide in 2D and capturing only where there is something to image) Storing important metadata, including associated images like a slide's label and thumbnail Support for lossy storage What kind of (hopefully non-proprietary) formats do people use to store large aerial photographs or maps? These images have similar properties.

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  • How do I locate a particular word in a text file using .NET

    - by cmrhema
    I am sending mails (in asp.net ,c#), having a template in text file (.txt) like below User Name :<User Name> Address : <Address>. I used to replace the words within the angle brackets in the text file using the below code StreamReader sr; sr = File.OpenText(HttpContext.Current.Server.MapPath(txt)); copy = sr.ReadToEnd(); sr.Close(); //close the reader copy = copy.Replace(word.ToUpper(),"#" + word.ToUpper()); //remove the word specified UC //save new copy into existing text file FileInfo newText = new FileInfo(HttpContext.Current.Server.MapPath(txt)); StreamWriter newCopy = newText.CreateText(); newCopy.WriteLine(copy); newCopy.Write(newCopy.NewLine); newCopy.Close(); Now I have a new problem, the user will be adding new words within an angle, say for eg, they will be adding <Salary>. In that case i have to read out and find the word <Salary>. In other words, I have to find all the words, that are located with the angle brackets (<). How do I do that?

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  • An unusual type signature

    - by Travis Brown
    In Monads for natural language semantics, Chung-Chieh Shan shows how monads can be used to give a nicely uniform restatement of the standard accounts of some different kinds of natural language phenomena (interrogatives, focus, intensionality, and quantification). He defines two composition operations, A_M and A'_M, that are useful for this purpose. The first is simply ap. In the powerset monad ap is non-deterministic function application, which is useful for handling the semantics of interrogatives; in the reader monad it corresponds to the usual analysis of extensional composition; etc. This makes sense. The secondary composition operation, however, has a type signature that just looks bizarre to me: (<?>) :: (Monad m) => m (m a -> b) -> m a -> m b (Shan calls it A'_M, but I'll call it <?> here.) The definition is what you'd expect from the types; it corresponds pretty closely to ap: g <?> x = g >>= \h -> return $ h x I think I can understand how this does what it's supposed to in the context of the paper (handle question-taking verbs for interrogatives, serve as intensional composition, etc.). What it does isn't terribly complicated, but it's a bit odd to see it play such a central role here, since it's not an idiom I've seen in Haskell before. Nothing useful comes up on Hoogle for either m (m a -> b) -> m a -> m b or m (a -> b) -> a -> m b. Does this look familiar to anyone from other contexts? Have you ever written this function?

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  • Rubygems on Debian: Gems won't load (LoadError)

    - by daswerth
    I've installed the development version of Crunchbang, a linux distro based off Debian. I got Ruby and Rubygems installed, but I can't get the gems I've installed to load. Here is a command-line session: $ ruby -v ruby 1.9.1p378 (2010-01-10 revision 26273) [i486-linux] $ gem env RubyGems Environment: - RUBYGEMS VERSION: 1.3.6 - RUBY VERSION: 1.9.1 (2010-01-10 patchlevel 378) [i486-linux] - INSTALLATION DIRECTORY: /usr/lib/ruby1.9.1/gems/1.9.1 - RUBY EXECUTABLE: /usr/bin/ruby1.9.1 - EXECUTABLE DIRECTORY: /usr/bin - RUBYGEMS PLATFORMS: - ruby - x86-linux - GEM PATHS: - /usr/lib/ruby1.9.1/gems/1.9.1 - /home/corey/.gem/ruby/1.9.1 - GEM CONFIGURATION: - :update_sources => true - :verbose => true - :benchmark => false - :backtrace => false - :bulk_threshold => 1000 - REMOTE SOURCES: - http://rubygems.org/ $ echo $PATH /home/corey/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/corey/.gem/ruby/1.9.1:/usr/lib/ruby1.9.1/gems/1.9.1 $ gem list -d nokogiri `*** LOCAL GEMS ***` nokogiri (1.4.1) Authors: Aaron Patterson, Mike Dalessio Rubyforge: http://rubyforge.org/projects/nokogiri Homepage: http://nokogiri.org Installed at: /usr/lib/ruby1.9.1/gems/1.9.1 Nokogiri (?) is an HTML, XML, SAX, and Reader parser $ ruby -r rubygems -e "require 'nokogiri'" -e:1:in `require': no such file to load -- nokogiri (LoadError) from -e:1:in `' I've encountered similar problems on Ubuntu before, but they were easy to fix. I can't figure out what's wrong in this particular case, and Google didn't seem to know either. Any help would be greatly appreciated! By the way... this is my first submission to stackoverflow. I hope this question is relevant. :)

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  • Is there a good way to QuickCheck Happstack.State methods?

    - by Paul Kuliniewicz
    I have a set of Happstack.State MACID methods that I want to test using QuickCheck, but I'm having trouble figuring out the most elegant way to accomplish that. The problems I'm running into are: The only way to evaluate an Ev monad computation is in the IO monad via query or update. There's no way to create a purely in-memory MACID store; this is by design. Therefore, running things in the IO monad means there are temporary files to clean up after each test. There's no way to initialize a new MACID store except with the initialValue for the state; it can't be generated via Arbitrary unless I expose an access method that replaces the state wholesale. Working around all of the above means writing methods that only use features of MonadReader or MonadState (and running the test inside Reader or State instead of Ev. This means forgoing the use of getRandom or getEventClockTime and the like inside the method definitions. The only options I can see are: Run the methods in a throw-away on-disk MACID store, cleaning up after each test and settling for starting from initialValue each time. Write the methods to have most of the code run in a MonadReader or MonadState (which is more easily testable), and rely on a small amount of non-QuickCheck-able glue around it that calls getRandom or getEventClockTime as necessary. Is there a better solution that I'm overlooking?

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  • latin1/unicode conversion problem with ajax request and special characters

    - by mfn
    Server is PHP5 and HTML charset is latin1 (iso-8859-1). With regular form POST requests, there's no problem with "special" characters like the em dash (–) for example. Although I don't know for sure, it works. Probably because there exists a representable character for the browser at char code 150 (which is what I see in PHP on the server for a literal em dash with ord). Now our application also provides some kind of preview mechanism via ajax: the text is sent to the server and a complete HTML for a preview is sent back. However, the ordinary char code 150 em dash character when sent via ajax (tested with GET and POST) mutates into something more: %E2%80%93. I see this already in the apache log. According to various sources I found, e.g. http://www.tachyonsoft.com/uc0020.htm , this is the UTF8 byte representation of em dash and my current knowledge is that JavaScript handles everything in Unicode. However within my app, I need everything in latin1. Simply said: just like a regular POST request would have given me that em dash as char code 150, I would need that for the translated UTF8 representation too. That's were I'm failing, because with PHP on the server when I try to decode it with either utf8_decode(...) or iconv('UTF-8', 'iso-8859-1', ...) but in both cases I get a regular ? representing this character (and iconv also throws me a notice: Detected an illegal character in input string ). My goal is to find an automated solution, but maybe I'm trying to be überclever in this case? I've found other people simply doing manual replacing with a predefined input/output set; but that would always give me the feeling I could loose characters. The observant reader will note that I'm behind on understanding the full impact/complexity with things about Unicode and conversion of chars and I definitely prefer to understand the thing as a whole then a simply manual mapping. thanks

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  • Can I print an HTMLLoader (pdf) in Adobe Air?

    - by Stephano
    I'm using AlivePDF to create a PDF file, then save it to the desktop. I can then use an HTMLLoader to display my lovely PDF file. Now, the print button in Adobe Reader works fine. However, there will be young children using the app, so I'd like to have a big "Print" button right above it. I figured I could just start up a print job and feed it my HTMLLoader. Am I doing something wrong here, cause I can't seem to get any output? note: variable "stuff" below is my HTMLLoader. I also have access to the PDF file if that comes in handy. private function print():void { var myPrintJob:PrintJob=new PrintJob(); var result:Boolean=myPrintJob.start(); if (result && stuff != null) { var rect:Rectangle=new Rectangle(0, 0, 2550, 3300); var opt:PrintJobOptions=new PrintJobOptions(true); myPrintJob.addPage(stuff, rect, opt); myPrintJob.send(); } else { //User does not have printer or user canceled print action } }

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  • Can I print an HTMLLoader (pdf) in Adobe Air?

    - by Stephano
    I'm using AlivePDF to create a PDF file, then save it to the desktop. I can then use an HTMLLoader to display my lovely PDF file. Now, the print button in Adobe Reader works fine. However, there will be young children using the app, so I'd like to have a big "Print" button right above it. I figured I could just start up a print job and feed it my HTMLLoader. Am I doing something wrong here, cause I can't seem to get any output? note: variable "stuff" below is my HTMLLoader. I also have access to the PDF file if that comes in handy. private function print():void { var myPrintJob:PrintJob=new PrintJob(); var result:Boolean=myPrintJob.start(); if (result && stuff != null) { var rect:Rectangle=new Rectangle(0, 0, 2550, 3300); var opt:PrintJobOptions=new PrintJobOptions(true); myPrintJob.addPage(stuff, rect, opt); myPrintJob.send(); } else { //User does not have printer or user canceled print action } }

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  • .Net Entity objectcontext thread error

    - by Chris Klepeis
    I have an n-layered asp.net application which returns an object from my DAL to the BAL like so: public IEnumerable<SourceKey> Get(SourceKey sk) { var query = from SourceKey in _dataContext.SourceKeys select SourceKey; if (sk.sourceKey1 != null) { query = from SourceKey in query where SourceKey.sourceKey1 == sk.sourceKey1 select SourceKey; } return query.AsEnumerable(); } This result passes through my business layer and hits the UI layer to display to the end users. I do not lazy load to prevent query execution in other layers of my application. I created another function in my DAL to delete objects: public void Delete(SourceKey sk) { try { _dataContext.DeleteObject(sk); _dataContext.SaveChanges(); } catch (Exception ex) { Debug.WriteLine(ex.Message + " " + ex.StackTrace + " " + ex.InnerException); } } When I try to call "Delete" after calling the "Get" function, I receive this error: New transaction is not allowed because there are other threads running in the session This is an ASP.Net app. My DAL contains an entity data model. The class in which I have the above functions share the same _dataContext, which is instantiated in my constructor. My guess is that the reader is still open from the "Get" function and was not closed. How can I close it?

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  • Problem with DSL and Business Rules creation in Drools

    - by jillika iyer
    Hi, I am using Eclipse with the Drools plugin to create rules. I want to create business rules and main aim is to try and provide the user a set of options which he can use to create rules. For eg:If an Apple can have only 3 colors: I want to provide an option like a drop down so that the user can know before hand which are the options he can use in his rules. Is it possible? I am creating a dsl but unable to still provide the above functionality for a business rule. I am having an error implementing a basic dsl also. The code to add the dsl is as follows in my RuleRunner class() InputStream ruleSource = RuleRunner.class.getClassLoader().getResourceAsStream("/Rule1.dslr"); InputStream dslSource = RuleRunner.class.getClassLoader().getResourceAsStream("/sample-dsl.dsl"); //Load the rules , using DSL addRulesToThisPackage.addPackageFromDrl( new InputStreamReader(ruleSource),new InputStreamReader(dslSource)); I have both the sample-dsl .dsl and Rule1.dslr in my working directory. Error encountered at adding the dsl to the package (last line) Error stack: Exception in thread "main" java.lang.NullPointerException at java.io.Reader.<init>(Unknown Source) at java.io.InputStreamReader.<init>(Unknown Source) at com.org.RuleRunner.loadRuleFile(RuleRunner.java:96) at com.org.RuleRunner.loadRules(RuleRunner.java:48) at com.org.RuleRunner.runStatelessRules(RuleRunner.java:109) at com.org.RulesTest.main(RulesTest.java:41) my dsl file has basic mapping as per the online documentations. The dsl rule I created is: expander sample-dsl.dsl rule "A status changes B status" when There is an A - has an address There is a B - has name then - print updated A and Aaddress End I have created DSL in eclipse. Is the code I added for it to be loaded to my package correct?? Or am I missing something???? It seems like my program is unable to find the dsl? Please help. Can you point me towards the right direction to create a user friendly business rule ?? Thanks. J

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  • Preferred way of application initialization

    - by lisak
    Do you guys have your own little framework for project startups ? I mean, every time one needs to do the same things at the beginning: Context initialization - ideally after arguments are processed. Sometimes without interactive user input, sometimes with input reader. Sometimes we need to load properties, sometimes not. Then we need to get a class out of context and run its method. Programming....programming until writing shell script to place everything on classpath. It's true that it differs according to the actual needs. But it seems to me, that I'm doing always almost the same, again and again from the scratch. Sometimes I realize that I'm postponing my work just because I don't want to do these annoying startups. It would be great if there was some kind of universal Main class doing reflection to specified bean, context initialization, argument parsing, interactive user input reading and have the programmer do the important things...All setup might be done via spring configuration. I think I'll have to do it by myself. I'd appreciate your ideas

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  • Uncompress a TIFF file without going through BufferedImage

    - by Gert
    I am receiving large size CCITT Group 4 compressed TIFF files that need to be written elsewhere as uncompressed TIFF files. I am using the jai_imageio TIFF reader and writer to do that and it works well as long as the product _width * height_ of the image fits in an integer. Here is the code I am using: TIFFImageReaderSpi readerSpi= new TIFFImageReaderSpi(); ImageReader imageReader = readerSpi.createReaderInstance(); byte[] data = blobManager.getObjectForIdAndVersion(id, version); ImageInputStream imageInputStream = ImageIO.createImageInputStream(data); imageReader.setInput(imageInputStream); TIFFImageWriterSpi writerSpi = new TIFFImageWriterSpi(); ImageWriter imageWriter = writerSpi.createWriterInstance(); ImageWriteParam imageWriteParam = imageWriter.getDefaultWriteParam(); imageWriteParam.setCompressionMode(ImageWriteParam.MODE_DISABLED); //bufferFile is created in the constructor ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(bufferFile); imageWriter.setOutput(imageOutputStream); //Now read the bitmap BufferedImage bufferedImage = imageReader.read(0); IIOImage iIOImage = new IIOImage(bufferedImage, null, null); //and write it imageWriter.write(null, iIOImage, imageWriteParam); Unfortunately, the files that I receive are often very large and the BufferedImage cannot be created. I have been trying to find a way to stream from the ImageReader directly to the ImageWriter but I cannot find out how to do that. Anybody with a suggestion?

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  • Is there something wrong with this code? AMFReader vs AMFWriter

    - by Triynko
    Something doesn't seem right about the source code for Flash Remoting's Date(AS3) <- DateTime(.NET) stream reader/writer methods, when it comes to handling UTC <- Local times. It seems to write the DateTime data fine, including a 64-bit representation as milliseconds elapsed since Jan 1, 1970, as well as a UTC offset. public void WriteDateTime(DateTime d) { this.BaseStream.WriteByte(11); DateTime time = new DateTime(0x7b2, 1, 1); long totalMilliseconds = (long)d.Subtract(time).TotalMilliseconds; long l = BitConverter.DoubleToInt64Bits((double)totalMilliseconds); this.WriteLong(l); int hours = TimeZone.CurrentTimeZone.GetUtcOffset(DateTime.Today).Hours; this.WriteShort(hours); } But when the data is read... it seems to be ignoring the short UTC offset value that was written, and appears to just discard it! private DateTime ReadDateValue() { long num2 = (long)this.ReadDouble(); DateTime time2 = new DateTime(0x7b2, 1, 1).AddMilliseconds((double)num2); int num3 = this.ReadInt16() / 60; //num3 is not used for anything! return time2; } Can anyone make sense of this? I also found some similar source code for AMFReader here, which has a ReadDateTime method, that seems to do something very similar... but goes on to use the UTC offset for something.

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  • Running an existing LINQ query against a dynamic object (DataTable like)

    - by TomTom
    Hello, I am working on a generic OData provider to go against a custom data provider that we have here. Thsi is fully dynamic in that I query the data provider for the table it knows. I have a basic storage structure in place so far based on the OData sample code. My problem is: OData supports queries and expects me to hand in an IQueryable implementation. On the lowe rside, I dont have any query support. Not a joke - the provider returns tables and the WHERE clause is not supported. Performance is not an issue here - the tables are small. It is ok to sort them in the OData provider. My main problem is this. I submit a SQL statement to get out the data of a table. The result is some sort of ADO.NET data reader here. I need to expose an IQueryable implementation for this data to potentially allow later filtering. Any ide ahow to best touch that? .NET 3.5 only (no 4.0 planned for some time). I was seriously thinking of creating dynamic DTO classes for every table (emitting bytecode) so I can use standard LINQ. Right now I am using a dictionary per entry (not too efficient) but I see no real way to filter / sort based on them.

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  • Managing Instances in Python

    - by BeensTheGreat
    Hello, I am new to Python and this is my first time asking a stackOverflow question, but a long time reader. I am working on a simple card based game but am having trouble managing instances of my Hand class. If you look below you can see that the hand class is a simple container for cards(which are just int values) and each Player class contains a hand class. However, whenever I create multiple instances of my Player class they all seem to manipulate a single instance of the Hand class. From my experience in C and Java it seems that I am somehow making my Hand class static. If anyone could help with this problem I would appreciate it greatly. Thank you, Thad To clarify: An example of this situation would be p = player.Player() p1 = player.Player() p.recieveCard(15) p1.recieveCard(21) p.viewHand() which would result in: [15,21] even though only one card was added to p Hand class: class Hand: index = 0 cards = [] #Collections of cards #Constructor def __init__(self): self.index self.cards def addCard(self, card): """Adds a card to current hand""" self.cards.append(card) return card def discardCard(self, card): """Discards a card from current hand""" self.cards.remove(card) return card def viewCards(self): """Returns a collection of cards""" return self.cards def fold(self): """Folds the current hand""" temp = self.cards self.cards = [] return temp Player Class import hand class Player: name = "" position = 0 chips = 0 dealer = 0 pHand = [] def __init__ (self, nm, pos, buyIn, deal): self.name = nm self.position = pos self.chips = buyIn self.dealer = deal self.pHand = hand.Hand() return def recieveCard(self, card): """Recieve card from the dealer""" self.pHand.addCard(card) return card def discardCard(self, card): """Throw away a card""" self.pHand.discardCard(card) return card def viewHand(self): """View the players hand""" return self.pHand.viewCards() def getChips(self): """Get the number of chips the player currently holds""" return self.chips def setChips(self, chip): """Sets the number of chips the player holds""" self.chips = chip return def makeDealer(self): """Makes this player the dealer""" self.dealer = 1 return def notDealer(self): """Makes this player not the dealer""" self.dealer = 0 return def isDealer(self): """Returns flag wether this player is the dealer""" return self.dealer def getPosition(self): """Returns position of the player""" return self.position def getName(self): """Returns name of the player""" return self.name

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  • Java: how to tell if a line in a text file was supposed to be blank?

    - by defn
    I'm working on a project in which I have to read in a Grammar file (breaking it up into my data structure), with the goal of being able to generate a random "DearJohnLetter". My problem is that when reading in the .txt file, I don't know how find out whether the file was supposed to be a completely blank line or not, which is detrimental to the program. Here is an example of part of the file, How do i tell if the next line was supposed to be a blank line? (btw I'm just using a buffered reader) Thanks! <start> I have to break up with you because <reason> . But let's still <disclaimer> . <reason> <dubious-excuse> <dubious-excuse> , and also because <reason> <dubious-excuse> my <person> doesn't like you I'm in love with <another> I haven't told you this before but <harsh> I didn't have the heart to tell you this when we were going out, but <harsh> you never <romantic-with-me> with me any more you don't <romantic> any more my <someone> said you were bad news

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