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What is the purpose of flush() in Java streams?
...
From the docs of the flush method:
Flushes the output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written ...
JMS and AMQP - RabbitMQ
...buted application to be loosely coupled, reliable, and asynchronous.
Now (from Wikipedia):
The Advanced Message Queuing Protocol (AMQP) is an open standard application layer protocol for message-oriented middleware. The
defining features of AMQP are message orientation, queuing, routing
(in...
Why do access tokens expire?
...n will return a fresh bearer token. Likewise, if I steal somebody's token from their cookies, and spoof my own cookie with that token, I send it to the server, it will refresh and send me a new one. What's to stop that? Don't say IP Address or even MAC, because that's unreasonable.
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What are metaclasses in Python?
... Python. And Python has a very peculiar idea of what classes are, borrowed from the Smalltalk language.
In most languages, classes are just pieces of code that describe how to produce an object. That's kinda true in Python too:
>>> class ObjectCreator(object):
... pass
...
>>&g...
How do I return clean JSON from a WCF Service?
I am trying to return some JSON from a WCF service. This service simply returns some content from my database. I can get the data. However, I am concerned about the format of my JSON. Currently, the JSON that gets returned is formatted like this:
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Where do the Python unit tests go?
...ule.py
test_module_function.py
# test_module.py
import unittest
from lib import module
class TestModule(unittest.TestCase):
def test_module(self):
pass
if __name__ == '__main__':
unittest.main()
Run the test in CLI
# In top-level /module/ folder
python -m tests.test_m...
Node.js / Express.js - How does app.router work?
...nformation about Express 4.
static simply serves files (static resources) from disk. You give it a path (sometimes called the mount point), and it serves the files in that folder.
For example, express.static('/var/www') would serve the files in that folder. So a request to your Node server for ht...
Why generate long serialVersionUID instead of a simple 1L?
...ialization, causing deserialization to fail. The above comment was taken from Java Object Serialization Specification version 6.0
– user624558
Sep 24 '14 at 1:38
...
Algorithm to compare two images
...object. There are probably several ways you could extract properties/data from this region of interest and use them to search your data set.
If you have more than 2 regions of interest, you can measure the distances between them. Take this simplified example:
(source: per2000.eu)
We have 3 c...
Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...s of data. I encountered a very weird effect: Changing the loop variable from unsigned to uint64_t made the performance drop by 50% on my PC.
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