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  • Easy XML Serializer for Java

    - by sdoca
    I'm looking for a way to serialize Java objects into XML for use by a RESTful web service. I don't have an XSD. I have looked at the following: JAXB - fairly heavy weight with annotations required on classes and also an ObjectFactory class and/or a jaxb.index file Simple - requires annotations but no other config classes/files. Unfortunately it can't serialize Sets. XStream - no annotations etc. required, but doesn't support generics Does anyone else have any suggestions?

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  • Reverse Proxy (mod_rewrite) and Rails (absolute paths)

    - by SooDesuNe
    I have front end rails app, that reverse proxies to any of a number of backend rails apps depending on URL, for example http://www.my_host.com/app_one reverse proxies to http://www.remote_host_running_app_one.com such that a URL like http://www.my_host.com/app_one/users will display the contents of http://www.remote_host_running_app_one.com/users I have a large, and ever expanding number of backends, so they can not be explicitly listed anywhere other than a database. This is no problem for mod_rewrite using a prg:/ rewrite map reverse proxy. The question is, the urls returned by rails helpers have the form /controller/action making them absolute to the root. This is a problem for the page served by mod_rewrite because links on the proxied page appear as absolute to the domain. i.e.: http://www.my_host.com/app_one/controller/action has links that end up looking like /controller/action/ when they need to look like /app_one/controller/action mod_proxy_html seems like the right idea, but it doesn't seem to be as dynamic as I would need, since the rules need to be hard coded into the config files. Is there a way to fix this server-side, so that the links will be routed correctly?

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  • What are the 'big' advantages to have Poco with ORM?

    - by bonefisher
    One advantage that comes to my mind is, if you use Poco classes for Orm mapping, you can easily switch from one ORM to another, if both support Poco. Having an ORM with no Poco support, e.g. mappings are done with attributes like the DataObjects.Net Orm, is not an issue for me, as also with Poco-supported Orms and theirs generated proxy entities, you have to be aware that entities are actually DAO objects bound to some context/session, e.g. serializing is a problem, etc..

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  • Java replacement for C macros

    - by thkala
    Recently I refactored the code of a 3rd party hash function from C++ to C. The process was relatively painless, with only a few changes of note. Now I want to write the same function in Java and I came upon a slight issue. In the C/C++ code there is a C preprocessor macro that takes a few integer variables names as arguments and performs a bunch of bitwise operations with their contents and a few constants. That macro is used in several different places, therefore its presence avoids a fair bit of code duplication. In Java, however, there is no equivalent for the C preprocessor. There is also no way to affect any basic type passed as an argument to a method - even autoboxing produces immutable objects. Coupled with the fact that Java methods return a single value, I can't seem to find a simple way to rewrite the macro. Avenues that I considered: Expand the macro by hand everywhere: It would work, but the code duplication could make things interesting in the long run. Write a method that returns an array: This would also work, but it would repeatedly result into code like this: long tmp[] = bitops(k, l, m, x, y, z); k = tmp[0]; l = tmp[1]; m = tmp[2]; x = tmp[3]; y = tmp[4]; z = tmp[5]; Write a method that takes an array as an argument: This would mean that all variable names would be reduced to array element references - it would be rather hard to keep track of which index corresponds to which variable. Create a separate class e.g. State with public fields of the appropriate type and use that as an argument to a method: This is my current solution. It allows the method to alter the variables, while still keeping their names. It has the disadvantage, however, that the State class will get more and more complex, as more macros and variables are added, in order to avoid copying values back and forth among different State objects. How would you rewrite such a C macro in Java? Is there a more appropriate way to deal with this, using the facilities provided by the standard Java 6 Development Kit (i.e. without 3rd party libraries or a separate preprocessor)?

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  • C++ - Breaking code implementation into different parts

    - by Kotti
    Hi! The question plot (a bit abstract, but answering this question will help me in my real app): So, I have some abstract superclass for objects that can be rendered on the screen. Let's call it IRenderable. struct IRenderable { // (...) virtual void Render(RenderingInterface& ri) = 0; virtual ~IRenderable() { } }; And suppose I also have some other objects that derive from IRenderable, e.g. Cat and Dog. So far so good. I add some Cat and Dog specific methods, like SeekForWhiskas(...) and Bark(...). After that I add specific Render(...) method for them, so my code looks this way: class Cat : public IRenderable { public: void SeekForWhiskas(...) { // Implementation could be here or moved // to a source file (depends on me wanting // to inline it or not) } virtual void Render(...) { // Here comes the rendering routine, that // is specific for cats SomehowDrawAppropriateCat(...); } }; class Dog : public IRenderable { public: void Bark(...) { // Same as for 'SeekForWhiskas(...)' } virtual void Render(...) { // Here comes the rendering routine, that // is specific for dogs DrawMadDog(...); } }; And then somewhere else I can do drawing the way that an appropriate rendering routine is called: IRenderable* dog = new Dog(); dog->Render(...); My question is about logical wrapping of such kind of code. I want to break apart the code, that corresponds to rendering of the current object and it's own methods (Render and Bark in this example), so that my class implementation doesn't turn into a mess (imagine that I have 10 methods like Bark and of course my Render method doesn't fit in their company and would be hard to find). Two ways of making what I want to (as far as I know) are: Making appropriate routines that look like RenderCat(Cat& cat, RenderInterface* ri), joining them to render namespace and then the functions inside a class would look like virtual void Render(...) { RenderCat(*this, ...); }, but this is plain stupid, because I'll lose access to Cat's private members and friending these functions looks like a total design disaster. Using visitor pattern, but this would also mean I have to rebuild my app's design and looks like an inadequate way to make my code complicated from the very beginning. Any brilliant ideas? :)

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  • Is it possible to drag an HTML element out of another element and trigger a change with jQuery?

    - by blackrobot
    I have a container element that you can drag objects around in. I want it it so that if you drag an element out of the container (when the mouse crosses the border of the containing div) the element you're dragging to change. How do I arrange this? $("#container img").draggable({ helper: 'clone', zIndex: 100 }); Once the image crosses the bounds of "#container" I should be able to change the image source.

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  • Which namespace does operator<< (stream) go to?

    - by aaa
    If I have have some overloaded ostream operators, defined for library local objects, is its okay for them to go to std namespace? If I do not declare them in std namespace, then I must use using ns:: operator <<. As a possible follow-up question, are there any operators which should go to standard or global namespace?

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  • How can I add a function reference to an object literal

    - by rob
    I need to add binders to DOM elements after rendering is done. Therefore I want to pass a list with (ID, callback) tuples to the rendering function so it can bind it after the rendering is done. So i would like to create a list of such objects and pass it to the rendering function: {id:'#someDOMelement', callback: someObject.someFunction} and bind it after the rendering like this: $(binders[i].id).bind('click', binders[i].callback);

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  • Android: passing paramters between classes

    - by Yang
    I have a class2 which is involved by class1 when clicks are made. I have to pass some parameters/objects from class1 to class2. I only know the standard way which does not have an option of passing parameters. // launch the full article Intent i = new Intent(this, Class2.class); startActivity(i);

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  • How can I dynamically load and execute all of the Javascript files in a directory?

    - by Andrew
    I'm making a very simple content-management system in Javascript. It uses plugins which are individual .js files which live in a "modules" folder. Currently I'm loading them with JQuery's getScript() function, but I have to manually define the list of available modules. Is there any way to dynamically load the list of Javascript files so that the user can install additional modules by simply dropping them into the "modules" folder?

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  • Getting the download count of a specific S3 object

    - by phidah
    I've got a number of S3 objects that are available to my customers. Since I'd like to bill my customers by usage, I wondered if there is any smart kind of way to get the number of times a given file has been downloaded? Alternatively, I suppose I could parse the log files provided by S3, but with 10m+ fetches per customer this might be bit of a task. Any ideas?

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  • How can I increase the size of the hard disk used by my Virtual Machine Manager (VMM) vm?

    - by Scott Langham
    In Virtual Machine Manager admin console, I used the 'New virtual machine' wizard and created a machine from an existing template. When I got to the Configure Hardware step, I selected the primary hard disk (which is a dynamic) disk and tried to increase it's maximum size, but this control is disabled so I can't increase it. It's not big enough for my purposes. how do I increase the maximum size of the hard-disk? Thanks. Edit: I am able to add a second hard disk of a size I specify. That's not useful though as I'm trying to install some software, some of which insists on being on drive C.

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  • Using StructureMap, when a default concrete type is defined in one registry, can it be redefined in

    - by Mark Rogers
    In the project I'm working on I have a StructureMap registry for the main web project and another registry for my integration tests. During some of the tests I wire up the web project's registry, so that I can get objects out of the container for testing. In one case I want to be able to replace a default concrete type from the web registry with one in the test registry. Is this possible? How do you do it?

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  • Reverse Proxy (mod_rewrite) and Rails (absolute paths)

    - by SooDesuNe
    I have front end rails app, that reverse proxies to any of a number of backend rails apps depending on URL, for example http://www.my_host.com/app_one reverse proxies to http://www.remote_host_running_app_one.com such that a URL like http://www.my_host.com/app_one/users will display the contents of http://www.remote_host_running_app_one.com/users I have a large, and ever expanding number of backends, so they can not be explicitly listed anywhere other than a database. This is no problem for mod_rewrite using a prg:/ rewrite map reverse proxy. The question is, the urls returned by rails helpers have the form /controller/action making them absolute to the root. This is a problem for the page served by mod_rewrite because links on the proxied page appear as absolute to the domain. i.e.: http://www.my_host.com/app_one/controller/action has links that end up looking like /controller/action/ when they need to look like /app_one/controller/action mod_proxy_html seems like the right idea, but it doesn't seem to be as dynamic as I would need, since the rules need to be hard coded into the config files. Is there a way to fix this server-side, so that the links will be routed correctly?

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  • How to page multiple data sets in ASP.NET MVC

    - by REA_ANDREW
    On a single view I will have three sets of paged data. Which means for each model I will have The Objects The Page Index The Page Size My initial thought was for example: public class PagedModel<T> where T:class { public IList<T> Objects { get; set; } public int ModelPageIndex { get; set; } public int ModelPageSize { get; set; } } Then having a model which is to be supplied to the action as for example: public class TypesViewModel { public PagedModel<ObjectA> Types1 { get; set; } public PagedModel<ObjectB> Typed2 { get; set; } public PagedModel<ObjectC> Types3 { get; set; } } So if I then for example have the Index view inherit from the type: System.Web.Mvc.ViewPage<uk.co.andrewrea.forum.Web.Models.TypesViewModel> Now my initial aciton method for the index is simply: public ActionResult Index() { var forDisplayPurposes = new TypesViewModel(); return View(forDisplayPurposes); } If I then want to page, it is here where I am struggling to decide which action to take. Lets say that I select the next page of the Types2 PageModel. What should the action look like for this in order to return the new view showing the second page of the Types2 PageModel I was thinking possibly to duplicate the action but use it with POST [AcceptVerbs(HttpVerbs.Post)] public ActionResult Index(TypesViewModel model) { return View(model); } Is this a good way to approach it. I understand there is always Session, but I was just wondering how such a thing is achieved currently out there. If any best methods have been mutually accepted and things. So simply, one page with multiple paged models. How to persist the data for each using a wrapper model. Which way should you pass in the model and which way should you page the data, i.e. Form Post Lastly, I have seen the routes take this into account i.e. {controller}/{action}/{id}/{pageindex}/{pagesize} but this only accounts for one model and I do not really wwant to repeat the pagesize and pageindex values for the number of models I have inside the wrapper model. Thanks for your time!! Andrew

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  • MVC EditorFor bind to type in array

    - by BradBrening
    I have a ViewModel that, among other properties, contains an array of 'EmailAddress' objects. EmailAddress itself has properties such as "Address", and "IsPrimary". My view model breakdown is: public class UserDetailsViewModel { public BUser User { get; set; } public string[] Roles { get; set; } public EmailAddress[] EmailAddresses { get; set; } } I am showing a "User Details" page that is pretty standard. For example, I'm displaying data using @Html.DisplayFor(model => model.User.UserName) and @Html.DisplayFor(model => model.User.Comment) I also have a section on the page that lists all of the EmailAddress objects associated with the user: @if(Model.EmailAddresses.Length > 0) { foreach (var address in Model.EmailAddresses) { <div> @Html.DisplayFor(model => address.Address) </div> } } else { <div class="center">User does not have any email addresses.</div> } My problem is that I would like to show an "Add Email Address" form above the list of email addresses. I thought I would take the "normal" approach thusly: @using(Html.BeginForm(new { id=Model.User.UserName, action="AddUserEmailAddress" })) { <text>Address:</text> @Html.EditorFor(model => ** HERE I AM STUCK **) <input type="submit" value="Add Email" class="button" /> } As you may be able to tell, I am stuck here. I've tried model => Model.EmailAddresses[0] and model => Model.EmailAddresses.FirstOrDefault(). Both of these have failed horribly. I am sure that I am going about this all wrong. I've even thought of adding a "dummy" property to my ViewModel of type EmailAddress just so that I can bind to that in my EditorFor - but that seems to be a really bad hack. There has to be something simple that I'm overlooking! I would appreciate any help anyone can offer with this matter. Thank you in advance!

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  • Do I need to recompile PHP to make use of CURL API?

    - by amn
    I have both Apache and PHP set up manually, albeit the latter without CURL. There is this jungle of instructions and explanations on extensions for PHP. I have a very straightforward question - what do I need to do to enable CURL in a more dynamic way. I resent the idea of static linking, in fact I hate and avoid static linking like the plague. Is it possible to have my Apache and PHP understand that there is CURL in town? I can compile CURL if necessary. Package management may be out of the question, because I built PHP myself - I am on Ubuntu, and it does not provide PHP without Suhosin and a a whole lot of time, so I removed it and built PHP myself. The whole slew of related questions simply propse installing "php5-curl" package, which is exactly one thing I CANNOT do since it installs it in a completely unrelated directory, which my PHP does not even seem to bother linking to.

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  • Server IP must be a LAN IP (Port Forwarding Netgear)

    - by rphello101
    I'm trying to set up a server (Apache) on my computer (fairly new to it). As I understand it, for it to be accessible to other computers, I need to forward port 80. When I try to forward the port though, I get the error: Server IP must be a LAN IP. I noticed in ipconfig that my default gateway is different than my wireless router. My computer is not hardwired, not on WiFi. Furthermore, I do not, at this point, have a static IP. I read that it should still work with a dynamic IP until it changes. Any ideas on what I can do?

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