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We are designing a small framework to create and send messages to external parties as a result of internal events. I am reasonably happy with the design, but I am wandering if it can be further improved.
The external messages are large and complex and involve getting data from different areas i...
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I hate having unnecessary catch blocks to make my code look beautiful. In most of the cases in my project, which is a web application(not a web site), I can't declare many exceptions as checked exceptions as there is little that my client(browser or alike) can do to recover from the exception. Ho...
I wanna to create an one way sync mechanism from django models to cloud datastore. My first version reference django's manager design.
An manager take care of sync
from gcloudorm import model as ndb
class DatastoreManager(object):
def __init__(self, model):
assert isinstnace(model...
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I'm moving a system over to PDO and since the queries are parameterized, I need to specify both the type and value of each parameter when preparing them.
Right now I have a prepare method to create the PDOStatement object:
/**
* Prepares a statement
* @param string $sql The query
* @param ar...
I want to understand iterators more, so I used an extremely simple insertion sort to experiment with it. Please review this code.
template<typename C>
void insertion_sort(C& c) {
for (auto i = c.begin(); i != c.end(); ++i) {
for (auto j = i; j > c.begin() && *j < *(j-1); --j) {
...
Merge Function
void merge(int outputArray[], int firstArray[], int sizeFirst, int secondArray[], int sizeSecond){
int p = 0;
int p1 = 0;
int p2 = 0;
while(p1 < sizeFirst && p2 < sizeSecond){
if(first[p1] < second[p2])
outputArray[p++] = firstArray[p1++];
...
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I want to do simple encryption using PHP 5.5. By “simple” I mean I want to use native PHP functions. I have created this code that works, can it be improved? It's to encrypt/decrypt strings and binary files that are to be stored in a database and accessed via a website. Assume that it is done ove...
I have written a simple wrapper for WinSCP in C#. I have written it to simplify SFTP connections I will needing to perform.
public class WinSCPConn : IDisposable
{
//private fields
private SessionOptions sessionOptions;
private TransferOptions transferOptions;
pr...0
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I am working on a web app that uses a WebSocket to log in users. I would like to minimize bandwidth usage by using binary messages. I came up with the following, and would like to know whether there is something better I could be doing:
-define(LOGIN, 1).
websocket_handle({binary, <<?LOGIN:8,Le...0
I'm trying to read doubles from a relatively small binary file. This currently reads a 100 KB file in about 6 milliseconds in my system. I would like to reduce that if possible.
void readNParseData(const char* filePath, vector<double> *&data){
ifstream ifs(filePath, ios::in | ios::binary);
...
I have a Windows Store and Windows Phone app, and in this app I have many pages like this:
<Grid Background="Transparent">
<ScrollViewer Style="{StaticResource DataPage}">
<StackPanel>
<TextBlock>
Some text here:
<LineBreak/>
<...
Input:
{ 1: [2,3], 2:[4], 3: [5,6], 4:[6] }
Expected output:
[[1, 2, 4, 6], [1, 3, 5], [1, 3, 6]]
My Code:
def parse(node, tree):
result = []
if node not in tree:
return [[node]]
else:
res = []
for next_node in tree[node]:
res.extend(parse(ne...
I am doing the Python Koans to practise python a bit more and I got to the greed dice project. It is a very simple dice game that scores a set of up to five rolls.
These are the rules:
# A greed roll is scored as follows:
#
# * A set of three ones is 1000 points
#
# * A set of three numbers (ot...
When this ViewModel loads we kick off the IsAuthenticatedCommand:
If the result of IsAuthenticatedCommand is false we set the value of NeedsToLogin to true.
If the result of IsAuthenticatedCommand is true we set the value of IsAuthenticated to true.
There are subscriptions (btw: is that the co...141
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import java.util.*;
public class prob14 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
long n,c,j,M=0,W=1;
for(n=500000l/3l;3*n<1000005;n++){
for(c=0,j=3*n;j!=1;c++){
if(j%2==0){
j=j/2;
...
A split-string function seems to be missing in R7RS.
I came up with the following implementation today:
(define (split-string delim str)
(let ((add (lambda (current output)
(cons (list->string (reverse current)) output))))
(let loop ((input (string->list str))
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