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  • Use HttpGet with illegal characters in the URL

    - by kaciula
    I am trying to use DefaultHttpClient and HttpGet to make a request to a web service. Unfortunately the web service URL contains illegal characters such as { (ex: domain.com/service/{username}). It's obvious that the web service naming isn't well written but I can't change it. When I do HttpGet(url), I get that I have an illegal character in the url (that is { and }). If I encode the URL before that, there is no error but the request goes to a different URL where there is nothing. The url, although has illegal characters, works from the browser but the HttpGet implementation doesn't let me use it. What should I do or use instead to avoid this problem?

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  • The same class file in multiple .jar files. How bad is this?

    - by Kannan Goundan
    I have a library that writes data in either a text or binary format. It has the following three components: common data structures text writer (depends on 1) binary writer (depends on 1) The obvious way to distribute this is as 3 .jar files, so that users can include only what they need. However, the "common data structures" component is really just two small classes so I'm considering creating only two .jar files and including the common .class files in both. My question: What are the potential problems with doing this?

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  • Data Structure Behind Amazon S3s Keys (Filtering Data Structure)

    - by dimo414
    I'd like to implement a data structure similar to the lookup functionality of Amazon S3. For those of you who don't know what I'm taking about, Amazon S3 stores all files at the root, but allows you to look up groups of files by common prefixes in their names, therefore replicating the power of a directory tree without the complexity of it. The catch is, both lookup and filter operations are O(1) (or close enough that even on very large buckets - S3's disk equivalents - both operations might as well be O(1))). So in short, I'm looking for a data structure that functions like a hash map, with the added benefit of efficient (at the very least not O(n)) filtering. The best I can come up with is extending HashMap so that it also contains a (sorted) list of contents, and doing a binary search for the range that matches the prefix, and returning that set. This seems slow to me, but I can't think of any other way to do it. Does anyone know either how Amazon does it, or a better way to implement this data structure?

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  • PreparedStatement

    - by Steel Plume
    Hello, in the case of using PreparedStatement with a single common connection without any pool, can I recreate an instance for every dml/sql operation mantaining the power of prepared statements? I mean: for (int i=0; i<1000; i++) { PreparedStatement preparedStatement = connection.prepareStatement(sql); preparedStatement.setObject(1, someValue); preparedStatement.executeQuery(); preparedStatement.close(); } instead of: PreparedStatement preparedStatement = connection.prepareStatement(sql); for (int i=0; i<1000; i++) { preparedStatement.clearParameters(); preparedStatement.setObject(1, someValue); preparedStatement.executeQuery(); } preparedStatement.close(); my question arises by the fact that I want to put this code into a multithreaded environment, can you give me some advice? thanks

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  • How do you unit test JEE code?

    - by marabol
    I want to ask for your prefered way to test JEE code? I found only three project, that are trying to help to code unit tests in JEE environment: http://jakarta.apache.org/cactus/ : Last Published: 2009-01-18 http://www.junitee.org/ : Last Release: 2004-12-11 http://ejb3unit.sourceforge.net/ : Last Release: 2008-05-17 So I wonder, is there any framework helping to write (j) unit test for JEE code? do you use embedded JEE servers like jboss or glassfish v3? do you mockup and inject by yourself? Thanks a lot...

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  • Fonts, goes back to default size

    - by Bladimir Ruiz
    Every time I change the font, it goes back to the default size, which is 12, even if I change it before with the "Tamano" menu, it only goes back to 12 every time, my guess would be the way I change the size with deriveFont(), but don't I now any other way to change it. public static class cambiar extends JFrame { public cambiar() { final Font aryal = new Font("Comic Sans MS", Font.PLAIN, 12); JFrame ventana = new JFrame("Cambios en el Texto!"); JPanel adentro = new JPanel(); final JLabel texto = new JLabel("Texto a Cambiar!"); texto.setFont(aryal); JMenuBar menu = new JMenuBar(); JMenu fuentes = new JMenu("Fuentes"); /* Elementos de Fuentes */ JMenuItem arial = new JMenuItem("Arial"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Font arrrial = new Font("Arial", Font.PLAIN, 12); float tam = (float) texto.getFont().getSize(); String hola = String.valueOf(tam); texto.setFont(arrrial); texto.setFont(texto.getFont().deriveFont(tam)); } }); fuentes.add(arial); /* FIN Fuentes */ JMenu tamano = new JMenu("Tamano"); /* Elementos de Tamano */ JMenuItem font13 = new JMenuItem("13"); font13.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(texto.getFont().deriveFont(23.0f)); } }); JMenuItem font14 = new JMenuItem("14"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(aryal); } }); JMenuItem font15 = new JMenuItem("15"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(aryal); } }); JMenuItem font16 = new JMenuItem("16"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(aryal); } }); JMenuItem font17 = new JMenuItem("17"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(aryal); } }); JMenuItem font18 = new JMenuItem("18"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(aryal); } }); JMenuItem font19 = new JMenuItem("19"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(aryal); } }); JMenuItem font20 = new JMenuItem("20"); arial.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { texto.setFont(aryal); } }); tamano.add(font13); /* FIN tanano */ JMenu tipo = new JMenu("Tipo"); /* Elementos de tipo */ /* FIN tipo */ /* Elementos del JMENU */ menu.add(fuentes); menu.add(tamano); menu.add(tipo); /* FIN JMENU */ /* Elementos del JPanel */ adentro.add(menu); adentro.add(texto); /* FIN JPanel */ /* Elementos del JFRAME */ ventana.add(adentro); ventana.setVisible(true); ventana.setSize(250, 250); /* FIN JFRAME */ } } Thanks in Advance!

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  • How to implement SAML SSO

    - by A_M
    How is SAML SSO typically implemented? I've read this about using SAML with Google Apps, and the wikipedia entry on SAML. The wikipedia entry talks about responding with forms containing details of the SAMLRequest and SAMLResponse. Does this mean that the user has to physically submit the form in order to proceed with the single sign on? The google entry talks about using redirects, which seems more seemless to me. However, it also talks about using a form for the response which the user must submit (although it does talk about using JavaScript to automatically submit the form). Is this the standard way of doing this? Using redirects and JavaScript for form submission? Does anyone know of any other good resources about how to go about implementing SSO between a Windows Domain and a J2EE web application. The web application is on a separate network/domain. My client wants to use CA Siteminder (with SAML).

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  • Using sql column names in hibernate createSQlquery result

    - by Ricardo
    Hi all, i have a couple of sql views with composite primary keys that i want to query, and since Hibernate makes it a pain to work with composite keyes, im using createSQLQuery. The problem is that this method can only return a List, and i need to refer to the colums by their index. Any chance i could do like jdbc and refer to the columns by their sql name insted of their index? thanks

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  • Choosing random numbers efficiently

    - by Frederik Wordenskjold
    I have a method, which uses random samples to approximate a calculation. This method is called millions of times, so its very important that the process of choosing the random numbers is efficient. I'm not sure how fast javas Random().nextInt really are, but my program does not seem to benefit as much as I would like it too. When choosing the random numbers, I do the following (in semi pseudo-code): // Repeat this 300000 times Set set = new Set(); while(set.length != 5) set.add(randomNumber(MIN,MAX)); Now, this obviously has a bad worst-case running time, as the random-function in theory can add duplicated numbers for an eternity, thus staying in the while-loop forever. However, the numbers are chosen from {0..45}, so a duplicated value is for the most part unlikely. When I use the above method, its only 40% faster than my other method, which does not approximate, but yields the correct result. This is ran ~ 1 million times, so I was expecting this new method to be at least 50% faster. Do you have any suggestions for a faster method? Or maybe you know of a more efficient way of generation a set of random numbers.

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  • Global variables in Eclipse RCP

    - by Raven
    Hi, how do i solve this: I have usercredential informtion in my main RCP plugin. All other plugins should have that information as well. Preference Store is not possible, because also the presference store needs a nodename which needs to be globally available. Are there any possibilities to realize global variables? Thanks!

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  • how to deploy to remote server with tomcat7-maven-plugin

    - by Msaleh
    i want to use tomcat7-maven-plugin to deploy war file from my local machine to remote server, here's the configuration i have so far: <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.0-beta-1</version> <configuration> <server>pb</server> <url>http://mydomain.com:8080/manager/html</url> </configuration> </plugin> do i need more configuration ? and what command do i use to deploy ?

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  • Format date in hql query

    - by user115520
    hi all, i want to format date to string in hql select, for example i have purchasing data with transaction date in it: class Purchase { private Date datePurchase } and i want to select date in a certain format, for example yyyyMMdd, can i do that in hql? actually i can iterate through all purchase data returned by query, and start to format the date using SimpleDateFormat, but i don't want do that, i want to do it in hql, is it posible? fyi, i just want to return the id and date string only, not all Purchase field. thak you all for any help.

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  • What’s the strategy to recover data during DAO unit test?

    - by Michael Lu
    When I test DAO module in JUnit, an obvious problem is: how to recover testing data in database? For instance, a record should be deleted in both test methods testA() and testB(), that means precondition of both test methods need an existing record to be deleted. Then my strategy is inserting the record in setUp() method to recover data. What’s your better solution? Or your practical idea in such case? Thanks

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  • HQL to get elements that possess all items in a set

    - by Tauren
    Currently, I have an HQL query that returns all Members who possess ANY Award from a set of specified Awards: from Member m left join m.awards as a where a.name in ("Trophy","Ribbon"); What I now need is HQL that will return all Members who possess ALL Awards specified in the set of Awards. So, assuming this data: Joe has Trophy, Medal Sue has Trophy, Ribbon Tom has Trophy, Ribbon, Medal The query above would return Joe, Sue, and Tom because all three possess at least one of Trophy or Ribbon. But I need to return only Sue and Tom, because they are the only ones who possess all of the specified awards (Trophy and Ribbon). Here's the class structure (simplified): class Member { private String name; private Set<Award> awards; } class Award { private String name; }

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  • Help me out in writing REGEX

    - by giri
    Hi I like to know how to write REGEX for the following code. <a href="/search?q=user:111111+[apple]" class="post-tag" title="show all posts by this user in 'apple'">Apple</a><span class="item-multiplier">&times;&nbsp;171</span><br> I just need to fetch Apple from the above source code. Can anybody help me out in writing REGEX. Thanks

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  • finding a string of random characters (with possible errors) within a large string of random charact

    - by mike
    I am trying to search a large string w/o spaces for a smaller string of characters. using regex I can easily find perfect matches but I can't figure out how to find partial matches. by partial matches i mean one or two extra characters in the string or one or two characters that have been changed, or one of each. the first and last characters will always match though. this would be similar to a spell checker but there are no spaces and the strings dont contain actual words, just random hex digits. i figured a way to find the string if there are no extra characters using indexOf(string.charAt(0)) and indexOf(charAt(string.length()-1) and looping through the characters between the two indexes. but this can be problematic when dealing with randomized characters because of the possibility of finding the first and last characters at the correct spacing but none of the middle characters matching. i've been scratching my head for hours on this issue. any ideas?

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  • How to test IO code in JUnit?

    - by add
    I'm want to test two services: service which builds file name service which writes some data into file provided by 1st service In first i'm building some complex file structure (just for example {user}/{date}/{time}/{generatedId}.bin) In second i'm writing data to the file passed by first service (1st service calls 2nd service) How can I test both services using mocks without making any real IO interractions? Just for example: 1st service: public class DefaultLogService implements LogService { public void log(SomeComplexData data) { serializer.write(new FileOutputStream(buildComplexFileStructure()), data); or serializer.write(buildComplexFileStructure(), data); or serializer.write(new GenericInputEntity(buildComplexFileStructure()), data); } private ComplextDataSerializer serializer; // mocked in tests } 2nd service: public class DefaultComplexDataSerializer implements ComplexDataSerializer { void write(InputStream stream, SomeComplexData data) {...} or void write(File file, SomeCompexData data) {...} or void write(GenericInputEntity entity, SomeComplexData data) {...} } In first case i need to pass FileOutputStream which will create a file (i.e. i can't test 1st service) In second case i need to pass File. What can i do in 2nd service test if I need to test data which will be written to specified file? (i can't test 2nd service) In third case i think i need some generic IO object which will wrap File. Maybe there is some ready-to-use solution for this purpose?

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  • Computational geometry: find where the triangle is after rotation, translation or reflection on a mi

    - by newba
    I have a small contest problem in which is given a set of points, in 2D, that form a triangle. This triangle may be subject to an arbitrary rotation, may be subject to an arbitrary translation (both in the 2D plane) and may be subject to a reflection on a mirror, but its dimensions were kept unchanged. Then, they give me a set of points in the plane, and I have to find 3 points that form my triangle after one or more of those geometric operations. Example: 5 15 8 5 20 10 6 5 17 5 20 20 5 10 5 15 20 15 10 I bet that have to apply some known algorithm, but I don't know which. The most common are: convex hull, sweep plane, triangulation, etc. Can someone give a tip? I don't need the code, only a push, please!

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  • accessing HttpServletRequest object in Spring WebFlow

    - by user198530
    I am using WebFlow and would like to add the current Locale into the flow. I already have a resolveLocale method that does this with this signature: public Locale resolveLocale (HttpServletRequest request); I would like to add something like this in my WebFlow XML: <on-start> <evaluate expression="localeService.resolveLocale(???)" result="flowScope.locale"/> </on-start> Now, I don't know what to put in the ??? parameter part. Any ideas? Thanks for reading.

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  • print a linear linked list into a table

    - by user1796970
    I am attempting to print some values i have stored into a LLL into a readable table. The data i have stored is the following : DEBBIE STARR F 3 W 1000.00 JOAN JACOBUS F 9 W 925.00 DAVID RENN M 3 H 4.75 ALBERT CAHANA M 3 H 18.75 DOUGLAS SHEER M 5 W 250.00 SHARI BUCHMAN F 9 W 325.00 SARA JONES F 1 H 7.50 RICKY MOFSEN M 6 H 12.50 JEAN BRENNAN F 6 H 5.40 JAMIE MICHAELS F 8 W 150.00 i have stored each firstname, lastname, gender, tenure, payrate, and salary into their own List. And would like to be able to print them out in the same format that they are viewed on the text file i read them in from. i have messed around with a few methods that allow me to traverse and print the Lists, but i end up with ugly output. . . here is my code for the storage of the text file and the format i would like to print out: public class Payroll { private LineWriter lw; private ObjectList output; ListNode input; private ObjectList firstname, lastname, gender, tenure, rate, salary; public Payroll(LineWriter lw) { this.lw = lw; this.firstname = new ObjectList(); this.lastname = new ObjectList(); this.gender = new ObjectList(); this.tenure = new ObjectList(); this.rate = new ObjectList(); this.salary = new ObjectList(); this.output = new ObjectList(); this.input = new ListNode(); } public void readfile() { File file = new File("payfile.txt"); try{ Scanner scanner = new Scanner(file); while(scanner.hasNextLine()) { String line = scanner.nextLine(); Scanner lineScanner = new Scanner(line); lineScanner.useDelimiter("\\s+"); while(lineScanner.hasNext()) { firstname.insert1(lineScanner.next()); lastname.insert1(lineScanner.next()); gender.insert1(lineScanner.next()); tenure.insert1(lineScanner.next()); rate.insert1(lineScanner.next()); salary.insert1(lineScanner.next()); } } }catch(FileNotFoundException e) {e.printStackTrace();} } public void printer(LineWriter lw) { String msg = " FirstName " + " LastName " + " Gender " + " Tenure " + " Pay Rate " + " Salary "; output.insert1(msg); System.out.println(output.getFirst()); System.out.println(" " + firstname.getFirst() + " " + lastname.getFirst() + "\t" + gender.getFirst() + "\t" + tenure.getFirst() + "\t" + rate.getFirst() + "\t" + salary.getFirst()); } }

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  • open/save file in smartGWT

    - by Karthikeyan
    Hi All, I have implemented RPCService, RPCServiceAsync & RPCServieImpl. On clicking a button a service in server side will be called and it will fetch data from DB and file is created. Once the file is created, then i need to open that file in client side and need to prompt a dialog box with open/save options. how can i implement this opening a file part. pls suggest a way to implement t.. Reply pls.. thanks in advance....

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