in web.xml i set my welcome file to a jsp within web.xml <welcome-file>WEB-INF/index.jsp</welcome-file> inside index.jsp i then forward on to a servlet <% response.sendRedirect(response.encodeRedirectURL("myServlet/")); %> however the application tries to find the servlet at the following path applicationName/WEB-INF/myServlet ...
To illustrate the question check the following code: class MyDescriptor(object): def __get__(self, obj, type=None): print "get", self, obj, type return self._v def __set__(self, obj, value): self._v = value print "set", self, obj, value return None class SomeClass1(object): m = MyDescriptor() class SomeClass2...
On most UNIX systems passing an open file between processes can be easily done for child/parent processes by fork(); however I need to share a fd "after" the child was already forked. I've found some webpages telling me that sendmsg() may work for arbitary processes; but that seems very OS dependent and complex. The portlisten seems lik...
I would like to implement a socket-like object in user space. There's an important requirement that it should be pollable (i.e. it's state should be queryable via select or poll call). Is there a platform neutral way of implementing such an object? I'm aware that on Linux there's eventfd which kind of suits the needs except that there'...
When I try to add to the application descriptor in a Netbeans mobile project by clicking on 'Add' in the 'Application Descriptor' panel in the projecct config window nothing happens, netbeans gives a red button on the bottom right indicating an error, clicking on that reveals this: java.lang.NullPointerException at org.netbeans.modu...
In class B below I wanted the __set__ function in class A to be called whenever you assign a value to B().a . Instead, setting a value to B().a overwrites B().a with the value. Class C assigning to C().a works correctly, but I wanted to have a separate instance of A for each user class, i.e. I don't want changing 'a' in one instance of C...
I'm trying to learn descriptors, and I'm confused by objects behaviour - in the two examples below, as I understood __init__ they should work the same. Can someone unconfuse me, or point me to a resource that explains this? import math class poweroftwo(object): """any time this is set with an int, turns it's value to a tuple of the ...
I've started to use the python descriptor protocol more extensively in the code I've been writing. Typically, the default python lookup magic is what I want to happen, but sometimes I'm finding I want to get the descriptor object itself instead the results of its __get__ method. Wanting to know the type of the descriptor, or access stat...
Hi all...my question is how would I change the program below so that it takes a file descriptor number on the command line rather than a file name? Any help would be greatly appreciated. Thank You. include "csapp.h" int main (int argc, char **argv) { struct stat stat; char *type, *readok; /* $end statcheck */ if (a...
Hi, Python 2.5.4. Fairly new to Python, brand new to decorators as of last night. If I have a class with multiple boolean attributes: class Foo(object): _bool1 = True _bool2 = True _bool3 = True #et cetera def __init__(): self._bool1 = True self._bool2 = False self._bool3 = True #et ...
I have a project which has several custom descriptors written for the assembly plugin. Is there a way to run only one of those descriptors at a time instead of the whole bunch? I tried using the descriptors switch as documented here, passing in the full path to the one descriptor that I wanted to run, but instead it's running all of the ...
People can download content (music, images) for their mobile from my server. Im trying to use the installNotifyURI-tag of the download descriptors specified by OMA, to be able to find out if the download has been successful. When the user has downloaded the item I do get a POST to the url I specified in the installNotifyURI-tag. <i...
I'm looking to implement a property class for appengine, very similar to the existing db.ReferenceProperty. I am implementing my own version because I want some other default return values. My question is, how do I make the property remember its returned value, so that the datastore query is only performed the first time the property is ...
I have defined a personalized jar-with-dependencies assembly descriptor. However, when I execute it with mvn assembly:assembly, I get : ... [INFO] META-INF/ already added, skipping [INFO] META-INF/MANIFEST.MF already added, skipping [INFO] javax/ already added, skipping [INFO] META-INF/ already added, skipping [INFO] META-INF/MANIFEST.M...
I have a decorated function (simplified version): class Memoize: def __init__(self, function): self.function = function self.memoized = {} def __call__(self, *args, **kwds): hash = args try: return self.memoized[hash] except KeyError: self.memoized[hash] = self.func...
I want to create a decorator that works like a property, only it calls the decorated function only once, and on subsequent calls always return the result of the first call. An example: def SomeClass(object): @LazilyInitializedProperty def foo(self): print "Now initializing" return 5 >>> x = SomeClass() >>> x.foo...
I am currently thinking of implementing a syscall in some BSD flavours in order to close a given file descriptor. The file descriptor would be defined as a pair of PID and file descriptor number. It will be useful in order to test/debug a program or others strange purposes. I think that I will do it anyway, you know, for learning purpo...
I'm playing around with a webserver, using a unix socket and sendmsg / recvmsg to pass the socket file descriptor to a new server process without losing any requests. While testing it with ab I found that client connections would linger, and apachebench (ab) would show the error: "apr_poll: The timeout specified has expired (70007)". I ...
Hello there, I was reading the tutorial on this page: http://edocs.bea.com/docs/cd/E13222_01/wls/docs81/medrec_tutorials/ejbgen.html#858279 And I have the following file BankAccountEJB.java import javax.ejb.CreateException; import javax.ejb.EntityBean; import javax.ejb.EntityContext; public abstract class BankAccountEJB implements En...
Hi, I have a program which suffer from file descriptor increasing. I see when I execute the command ls -l /proc/5969/fd where 5969 is the pid of the java program the number of file descriptor continuously increasing. but I am unable to open one of those files decriptors to see what file remains open : here is an example of the listing :...