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• Reading in gzipped data from S3 in Ruby

  - by Evan Zamir

  My company has data messages (json) stored in gzipped files on Amazon S3. I want to use Ruby to iterate through the files and do some analytics. I started to use the 'aws/s3' gem, and get get each file as an object: #<AWS::S3::S3Object:0x4xxx4760 '/my.company.archive/data/msg/20131030093336.json.gz'> But once I have this object, I do not know how to unzip it or even access the data inside of it.

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• What's the justification behind disallowing partial PUT?

  - by Mike

  Why does an HTTP PUT request have to contain a representation of a 'whole' state and can't just be a partial? I understand that this is the existing definition of PUT - this question is about the reason(s) why it would be defined that way. i.e: What is gained by preventing partial PUTs? Why was preventing idempotent partial updates considered an acceptable loss?

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• How to Implement Web Based Find File Database Via Text Search

  - by neversaint

  I have series of files like this: foo1.txt.gz foo2.txt.gz bar1.txt.gz ..etc.. and a tabular format file that describe those files: foo1 - Explain foo1 foo2 - Explain foo2 bar1 - Explain bar1 ..etc.. What I want to do is to have a website with a simple search bar and allow people to type foo1 or just foo and finally return the gzipped file(s) and the related explanation of the file(s). What's the best way to implement this and what kind of tools should I use. Sorry I am totally new in this area.

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• Securing a REST API

  - by Christopher McCann

  I am in the middle of developing a REST API - the first one I ever have. The data being passed through the API is not of such a critical nature that there will be loss of life, economics etc if it was intercepted but at the same time I would like it to be secure. The data being transferred is simply like the data that would be transferred on Twitter or Facebook - not overly confidential but still should be kept private. What is the best way to secure this data? Am I best to use HTTP Basic Auth over SSL or should I be looking into something like OAuth. I have never really used REST much before so bit of a first for me. Thanks

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• web service and its configuration file

  - by qkrsppopcmpt

  I implemented one service and it has several configuration item, such as data type, next node, blablabla. What I want to do is to deploy the service and configuration file into tomcat within one .aar. However, if I jar the service and configuration file into the aar. The service can't read the file though the file is there in the same directory. Even I put the file into tomcat_home\bin, the service fails to read the file. I know it should work. Can anybody give me a hint? Thanks.

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• Is Amazon SQS the right choice here? Rails performance issue.

  - by ole_berlin

  I'm close to releasing a rails app with the common networking features (messaging, wall, etc.). I want to use some kind of background processing (most likely Bj) for off-loading tasks from the request/response cycle. This would happen when users invite friends via email to join and for email notifications. I'm not sure if I should just drop these invites and notifications in my Database, using a model and then just process it with a worker process every x minutes or if I should go for Amazon SQS, storing the messages and invites there and let my worker retrieve it from Amazon SQS for processing (sending the invites / notifications). The Amazon approach would get load off my Database but I guess it is slower to retrieve messages from there. What do you think?

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• Finding web source of Drag&Drop with Qt

  - by UncaughtException

  I'm trying to implement a simple notebook in Qt. Microsoft OneNote allows text or an image from a website to be inserted by Drag&Drop with an attached link to the source that looks like this for the stackoverflow logo on the 'ask' page: Inserted from <http://stackoverflow.com/questions/ask. With the QT dropsite example, I examined all the information thats transported by the QMimeData object, but didn't find something really helpful. Do you know a way to do this in pure Qt or at least with not so much platform-dependant code?

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• How to do authentication using SOAP ?

  - by WarDoGG

  How do i authenicate users with SOAP ? Will i have the user require to send his username/pass with every SOAP request and i authenticate him against the database ? Doesn't that seem to cause unnecessary queries ?

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• Downloading files in ASP.Net MVC web applications

  - by kingrichard2005

  Hello, I'm working on a project that requires the ability to let a user download a pdf from a static location on the server. I'm reading the instructions from this website, it's an old post and I notice they specify in an update that Microsoft's MVC framework has long since included and Action Result that allows the same functionality they discuss thus rendering it obsolete, I've looked a bit online but haven't been able to find any resources that discuss this built-in functionality. If anyone has any links or other information that discuss this it would be very helpful. Thanks.

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• ASP.Net navigation tabs like windows tab control

  - by devphil

  I would like to have a webpage something like windows tab control. Each webpage does not lose the contents and data while moving between pages, postbacks, etc. Here is the website design and my idea: [Master Page] "Fruits" "Cars" "Animals" "Operators" clicking on "Fruits" will forwards to "Fruits" page, and the same for other links (tabs) The user works on "Fruits" page searching fruits, fill up some fields, etc. The user then moves to "Cars" page and then builds up his own car by filling some fields, etc and then the user goes back to "Fruits" page again - the user sees the same page where she/he left on "Fruits" page. Please suggest some good ways other than using javascript:history.go(-1). Is this possible to implement?

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• PHP Fatal error: Call to undefined method after uploading on the web

  - by user287966

  I have some pages, which work fine locally(using WAMP and error_reporting E_ALL in php.ini), but once I upload them, I get the following error: Fatal error: Call to undefined method DB::exists() The method is there, and I don't know why it can't be seen. Do you have an idea what went wrong?

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• [Not releated to programming] Website Address of part specific design showcase

  - by Herr Kaleun

  Hello Friends, i once had the chance to look at a website, where design was showcased but sorted in a special manner. You were able to look at footers, headers, login menus, and all kinds of parts from different sites. If anyone can remember the address i would be very happy about it. Thanks for reading.

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• PHP Object Oriented Web Application

  - by Sev

  I have a class called "Layout" for the layout of the page, another class called "User" for the user. Every page I create, I instantiate a new Layout. When a user logs in, there is a new User instantiated. How do I get an instance of the layout class to know about the instantiated user? I could also save the entire instance of the User in a session variable. I assume that's a bad idea though. What are the best practices for this?

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• How to access a website's url programmatically from within the page

  - by Jeff

  For work, I am working on a site that has a feature that lets users make custom instances of the site depending on who they want to show it to. So if they want to show their potential employer a little bit about themselves, they can send them a custom url, that has a uid on the end of it that tells the database what to show and what not to when the site is loaded up. Now, I need to be able to take the value that is on the end of the url, this unique uid that corresponds with their preferences in the db, accessable on run time. Meaning that when someone types in this custom url, I need to be able to show the name of the person whose portfolio is being viewed BEFORE password authentication takes place... If I could get the URL, I suppose I could parse through it to find the necessary UID...but how do I get the url? Maybe I am just missing something here, but if anyone has any thoughts or ideas, it would be appreciated!! Thanks

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• Should I start to use CSS 3 & HTML 5?

  - by LeonixSolutions

  I fear this may sound subjective, sorry. I am wondering how "safe" it is to use CSS3 & HTML5 in a commercial app. I really want the power that they give, but am obviously wary that they are not completely standardized. If it helps any I can probably enforce the use of Chrome as the browser; I can likely offer FireFox as an alternative. I personally do not want to let the user choose their own browser and can probably enforce my choice in a corporate environment which is already heavily biased towards Google. I suppose that if I can enforce a Chrome only policy & carefully test before release then my only worry is that some "behaviour" may change in future. Would you risk it, or would play safe (or go with an alternative, such as a Java app, forgetting the browser)?

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• C# Get HTML Element Data with Post Back

  - by user303938

  One site would take data from the site var.C # PostBack method.But when the page's source code as submitted does not renewed.Object Can not Be Coming Referanced error.So I do post but the page refresh itself.This post has been displayed next to new data coming from the user how can I get? Thanks...

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• Java Web App: Passing form parameters across multiple pages

  - by digiarnie

  Hi, what is the best practice or best way of passing form parameters from page to page in a flow? If I have a flow where a user enters data in a form and hits next and repeats this process until they get to an approval page, what ways could I approach this problem to make the retention of data as simple as possible over the flow? I guess you could put all the information as you go in the session but could you get into memory issues if a lot of people are using your app and going through the flow at the same time?

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• Structure for Django methods that span different models

  - by Duncan

  I have two models (say A and B) which are independent and have independent methods. I want to add some methods that operate on both models though. for example, addX() will create an object from both models A and B. What's the best way to structure code in this situation, since it doesnt make sense to have the method belong to either of the models methods. Is the standard to write a service for the kind of 'abstract' model?

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• Using XmlSerializers.dll

  - by Erup

  I know the .XmlSerializers.dll generated, is usefull to improve the startup performance of a XmlSerializer when it serializes or deserializes objects. But how clients can use this assembly?

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• UTF8 from web conten .xml file to NSString

  - by mongeta

  Hello, I can't find a way to convert some UTF8 encoding into NSString. I get some data from a URL, it's a .xml file and here is their content: <?xml version="1.0" encoding="UTF-8"?> <person> <name>Jim Fern&#225;ndez</name> <phone>555-1234</phone> </person> How I can convert the á into a á ? some code that doesn't work: NSString* newStr = [[NSString alloc] initWithData:[NSData dataWithContentsOfURL:URL] encoding:NSUTF8StringEncoding];

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• axis-java2wsdl task classpath setting problem

  - by qkrsppopcmpt

  Hey Guys, here is my build.xml <?xml version="1.0" standalone="yes"?> <path id='axis2.classpath'> <fileset dir='D:\Tools\axis2-1.5.1-bin\axis2-1.5.1\lib'> <include name='**/*.jar' /> </fileset> </path> <path id='compiled.class.path'> <fileset dir='./bin/pkg'> <include name='*.class' /> </fileset> </path> <taskdef resource="axis-tasks.properties" classpathref="axis2.classpath" /> <target name="run" > <axis-java2wsdl output="out/TestService.wsdl" location="http://localhost:8080/axis2/service/TestService" namespace="service" classname="TestService"> <classpath refid="compiled.class.path"/> <mapping namespace="TestService" package="pkg"/> </axis-java2wsdl> </target> here is my file structure: prj-bin-pkg-TestService.class/////////// prj-src-pkg-TestService.java/////////// prj-build.xml I get java.lang.ClassNotFoundException: TestService. Can anybody tell me how to fix it? Thanks so much. !!!!!!!!!!!!!

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• What's a good design for an inbox application?

  - by glanden

  I need to design an inbox for a messaging application. I want it to look slick. Any recommendations?

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• When to use @Singleton in a Jersey resource

  - by dexter

  I have a Jersey resource that access the database. Basically it opens a database connection in the initialization of the resource. Performs queries on the resource's methods. I have observed that when I do not use @Singleton, the database is being open at each request. And we know opening a connection is really expensive right? So my question is, should I specify that the resource be singleton or is it really better to keep it at per request especially when the resource is connecting to the database? My resource code looks like this: //Use @Singleton here or not? @Path(/myservice/) public class MyResource { private ResponseGenerator responser; private Log logger = LogFactory.getLog(MyResource.class); public MyResource() { responser = new ResponseGenerator(); } @GET @Path("/clients") public String getClients() { logger.info("GETTING LIST OF CLIENTS"); return responser.returnClients(); } ... // some more methods ... } And I connect to the database using a code similar to this: public class ResponseGenerator { private Connection conn; private PreparedStatement prepStmt; private ResultSet rs; public ResponseGenerator(){ Class.forName("org.h2.Driver"); conn = DriverManager.getConnection("jdbc:h2:testdb"); } public String returnClients(){ String result; try{ prepStmt = conn.prepareStatement("SELECT * FROM hosts"); rs = prepStmt.executeQuery(); ... //do some processing here ... } catch (SQLException se){ logger.warn("Some message"); } finally { rs.close(); prepStmt.close(); // should I also close the connection here (in every method) if I stick to per request // and add getting of connection at the start of every method // conn.close(); } return result } ... // some more methods ... } Some comments on best practices for the code will also be helpful.

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• Resolve HTTP 304 - not modified in AJAX call made via GWT

  - by Salvin Francis

  We are using an application made in GWT with the server as tomcat. The project runs fine normally, however there are situations where the server is restarted. At such point of time, the ajax call made by the code below returns blank text with the status code as 304 RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.POST, URL.encode(serverUrl)); //-- serverUrl is the url to which this call is posted to. requestBuilder.setHeader("Content-Type", "application/x-www-form-urlencoded"); requestBuilder.setHeader("Expires","0"); requestBuilder.sendRequest( postData, new RequestCallback() { public void onError(Request request, Throwable exception) { //Do nothing } public void onResponseReceived(Request request, Response response) { //sometimes when the server is restarted, I get response.getStatusCode() = 304 and the response.getText() as blank } } ); normally we get back some data from the server inside this response text. How do we now get the data when the response itself is blank ?

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• iphone photo maximum size

  - by aditya

  Hi all i want to know there a limitation in size for an iphone to display an image? as the resolution of iphone is 320*480 px. i am developing an app which fetches photos from an URL and that URL contains some photos os size 600KB.So when i launch the app in simulator it behaves properly but in device the application crashes as soon as photos with higher resolution are displayed , and when lower resolution photos are displayed the app does not crash in the device.

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