Java :: Open 1 File Into 5 Versions Of The Same Flex-based App Engine App Simultaneously?
Aug 11, 2011
I have an application on Google App Engine that is made of Adobe Flex [and Java] components. The app has buttons to do tasks related to the app, including an "Open" button, which allows the user to open a .XML file, which then gets converted into data/content that's displayed in the app GUI. Then I press the "Run" button and it calculates stuff related to the inputted data/content. Also, my datastore is setup using JDO. I'm using only GAE. I'm NOT using GWT.
Based on the nature of the calculations (algorithms) I'm running, I would benefit from being able to open an XML file and then click the Run button on my app simultaneously on lets say 5 different versions of my app that I have uploaded to app engine. The 5 versions would be identical.Is there a way to create, say, an HTML page where the user would provide a link to the XML file (or open/load it from their disk) to be processed, then press "Go," where then the XML file is passed to all 5 versions of my app, then "automatically presses the Run button" on each?I can do this manually at the moment by going to each version-specific URL for my app, but it takes too long. Do you have any suggestions for how I would go about setting up such a script?
EDIT: Motivation for the problem: It's not XML processing time that I'm worried about. I currently have 2 algorithms that compute the number of particular types of "special points" that exist in an inputted XML file which contains large amounts of data. The difference between the two algorithms is that the 1st searches until it finds every special point. Then it stops. The 2nd searches and stops when it finds the first special point it comes across. Using multiple instances of this 2nd algorithm, one has the potential of finding all the points faster than the 1st algorithm.
I tried with flex and java in the backend. In this, I am able to upload files till 100 MB using remote object (blazeDs) where we will read the file as byte array and send it to the java method. If the file size exceeds after that, then I get the run time error in IE.
I could play MIDI file where "filename" is a String type with "asd.mid" value. However, I tried to sent AIR's nativeprocess command to Java, it shown "could not read" error.
I am newer with flex technology.I am creating a chart using ant file & .mxml in eclipse my 'ant' file executes properly but it gives following error when i opens a .swf file which is created auomatically:
Flex Error #1002: Flash Player 9.0.115 and above is required to support signed RSLs. Problem occurred when trying to load the RSL
My only experience with Flex is some limited reading over the web. What i am wondering is if i want to use Flex or some variant of it for generating reports, specifically Charts, coming off a Java/Oracle backend can i accomplish that in an environment where the streaming media (we cannot play videos on our systems at work) is turned off? Also, are there any other restrictions revolving around using Flex for reporting in the form of charts? Currently, we use Jfree Chart API to develop charts but just exploring an alternative.
I have an application that is coded using Flex 3 on UI side and java @ the service layer, along with BlazeDS. Now we need to authorize the users accessing the system based on the roles that are defined for them in the database, e.g. : say a user with role guest should not be able to access Admin tab on ui and also should not be able to do any operations other than viewing the data displayed on dashboard. Also the point to note here is that roles can be created dynamically by Super users from UI. I came across this link which describes how to perform Role Based Authentication & Authorization. With this approach I need to define the roles in service-config.xml but since my roles are not pre-defined I cannot go with this.
I would like to know how to build a flex based flash file and handle it through java but the open-source way. I would like to learn using flex to develop webpages. Is there any way to implement it using eclipse IDE.
Is it possible to use a Facebook session in a Flash to authenticate on Google App Engine? I'm trying to create a Flash game and I want to use GAE as the back-end.
And behind the scene what it is asking that you instantiate a class as such: new Source("blooper", new Exp(4), new Erlang(4,6); The problem lies in the fact that you don't know what class you will need to processing, and you will be sent a list of these class definitions with instructions on how they can be linked to each other. I've heard that using a BeanFactoryPostProcessor might be helpful, or a property editor/convertor. However I am at a loss as to how best to use them to solve my problem.
For some reason, I'm having a hard time finding a recent, side-by-side comparison of the various pros and cons of the different open-source flash 3D engines, such as Papervision3D, Away3D, and Sandy3D. Specifically, I'm looking for comparisons in the areas of
ease of use (and documentation) performance (framerate with lots of polygons) stability (bugs, glitches, graphical artifacts) currency (for lack of a better word - is the project gaining or losing team and community members?)
language(s) used (is it in as2, as3, flash-player-10 as3?) features (lighting and shadows, import models and animations of various formats, click detection, collision detection)
This is reasonable, right? I don't want to essentially pick one at random, only to find myself in trouble later on. Working with papervision3D, I'm already frustrated by the documentation, or the in-name-only nature thereof - most functions only have headers listed and no descriptions of what they do. Personally, I like to be able to pour through the documentation and figure out how to do whatever I want, and I feel like I'm fumbling around in the dark, having to read the source and try to understand all the implementation details. Who's used multiple open-source flash 3D platforms?
I have APE, but I'm not sure I can effectively utilize it for this project. Box2D seems popular, as do WOW and some others but I'm not sure which would be best for simulating celestial mechanics. The physics I need are essentially those used in the classic two-body problem.
One application JEE / Flex 4 running on a tomcat, inside my Flex layer I have a iFrame passing a url to an ip of my internal network (http:url....) which is another application running within an industrial PLC.When access this app from within my internal network works fine, but when I try to access this iFrame to an external network in my home for example have a timeout error onhttp:[url].........
I believe this error occurs because the flex client is trying to run this url as I was in a internal network.Is there any way to run this url from an external network?
I'm familiar with C/C++/Scheme/Java/OpenGL/TCP/IP.I need to learn how to build a tile based / platform flash engine.What tools should I be using? What books should I buy?I strongly prefer tools that let me do things programatically rather than through a graphical UI.
I'm trying to evaluate whether Flex can access binary sockets. Seems that there's a class calles Socket (flex.net package). The requirement is that Flex will connect to a server serving binary data. It will then subscribe to data and receive the feed which it will interpret and display as a chart. I've never worked with Flex, my experience lies with Java, so everything is new to me. So I'm trying to quickly set something simple up. The Java server expects the following:
DataInputStream in = ..... byte cmd = in.readByte(); int size = in.readByte(); byte[] buf = new byte[size]; in.readFully(buf); [Code] .....
After that - EOFException happens on the server and that's it. So the question is, am I approaching whole streaming data issue wrong when it comes to Flex? Am I sending the policy file wrong? Unfortunately, I can't seem to find a good solid example of how to do it. It seems to me that Flex can do binary Client-Server application, but I personally lack some basic knowledge when doing it. I'm using Flex 3.5 in IntelliJ IDEA IDE.
I have a great idea and I want to build a flex application around a .jar file. Is there a way I can go by embedding a jar file into the flex application?
I'm programming Rich web applications with Flex and Java on Flex Builder 3 using blazeDS and SharedObjects.Now I need that my program will use configuration file.so, I need that my Java class will read it at the first time but the default path of java to read and write files is c:program filesFlex Builder 3 and not my application directory inside the tomcat webapps directory How can I read the config file from the java class without write the path hardcoded in the java?
Is it possible to load a .properties file from a client computer using adobe flex? I have a flex app that needs to access a server and multiple URLs but the URLs may change frequently. So I think modifying and loading the URLs from a .properties file would be the easiest way update the URLs
I was able to use florians suggestion and I've added the code below if anyone else is interested. I used the example here URLLoader.
public function URLLoaderDataFormatExample(event:Event):void { var request:URLRequest = new URLRequest("file:///c:/temp/prop.properties"); var variables:URLLoader = new URLLoader();
I have two applications: a client in flex and a server in Java. When I deploying the application inside flex builder with the tomcat server inside as well, everything works fine. But now I'm trying to deploy in apache tomcat outside the flex/eclipse builder and I have a problem.I think the problem is with relative/absolute paths but I do not know how to resolve it.In my Java application I have to access a database and a get a file from it. I use a properties to set a path where I want to download that files like this:pacs.ruta=C:\resources\And then I need to access to that file so in use this code:fin = new FileInputStream(pacsRuta+""+f.getName());where f.getName() gives me the name of the file so I get the path of the file with the path I set in pacs.ruta and the files name.
I do not know why it does not work. I tried to put pacs.ruta=/resources/to associate with a folder in my application but It does not work.Could someone give me an advice? Do you think it is the problem? Because the whole application works fine deploying in a tomcat server outside the flex/eclipse builder but when this code is called the application does not work.
Flex front-end using AMF to Java back. Trying to read, in real-time, a file that is being written to. For example, a log. I'm using Java's RandomAccessFile class to read the "new" lines of the file and send them back to the UI as a byte array along with the byte offset to start reading from next time. Using an mx:List to display all lines of the text file. The problem I'm running into, is Flex, or Flash Player, running out of memory on mildly large files, >25MB. Is there any preferred method of displaying large amounts of text data in Flex that I'm missing? Or does Flex/Flash just handle this poorly and I'm basically screwed?
I have a flash animation I'm working on for a Web site and the java-based menu that's above it uses drop-down menus. Well, when the drop-down menus and the flash animation overlap, all you can see is the flash. The menu is behind it. This only happens on a PC-based browser. It is fine on a Mac. Any thoughts here? Any settings I'm missing here? The file is built in Flash CS4 using ActionScript 3.0. Here's the URL for the site (problem on home page when "Resources" menu drops down):
For example, Flash records voice and sends it to the server where Java or C# apps can proccess it and return back some data (or write it to db). How this communication possible, which protocols sould be used and etc.
I want to upload file and get some information from server at the same time. I have the code: file.addEventListener(Event.COMPLETE, function():void { trace("complete 1"); }); file.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA, function():void { trace("complete 2"); });
When the returning data is not empty, I see: complete 1 complete 2 But when the returning data is empty, I see: complete 1 How can I understand that file uploading is compete absolutely even if received data is empty?
