Tutorial by Examples: g

The StandardClaim is embedded in the custom type to allow for easy encoding, parsing and validation of standard claims. tokenString := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJleHAiOjE1MDAwLCJpc3MiOiJ0ZXN0In0.HE7fK0xOQwFEr4WDgRWj4teRPZ6i3GLwD5YCm6Pwu_c" type MyCustomCla...

// Create a new token object, specifying signing method and the claims // you would like it to contain. token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{ "foo": "bar", "nbf": time.Date(2015, 10, 10, 12, 0, 0, 0, time.UTC).Unix(), }) // Si...

The StandardClaims type is designed to be embedded into your custom types to provide standard validation features. You can use it alone, but there's no way to retrieve other fields after parsing. See the custom claims example for intended usage. mySigningKey := []byte("AllYourBase") //...

// Token from another example. This token is expired var tokenString = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJleHAiOjE1MDAwLCJpc3MiOiJ0ZXN0In0.HE7fK0xOQwFEr4WDgRWj4teRPZ6i3GLwD5YCm6Pwu_c" token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error...

type contextKey string const ( // JWTTokenContextKey holds the key used to store a JWT Token in the // context. JWTTokenContextKey contextKey = "JWTToken" // JWTClaimsContextKey holds the key used to store the JWT Claims in the // context. JWTClaimsContex...

Object pollAnswered = getCurrentSession().createSQLQuery( "select * from TJ_ANSWERED_ASW where pol_id = "+pollId+" and prf_log = '"+logid+"'").uniqueResult(); with this query, you get a unique result when you know the result of the query is always going to b...

In order to show an alert dialog containing a link which can be opened by clicking it, you can use the following code: AlertDialog.Builder builder1 = new AlertDialog.Builder(youractivity.this); builder1.setMessage(Html.fromHtml("your message,<a href=\"http://www.google.com\"&gt...

Atom is versatile and flexible text editor and has hundreds of community-made, open-source packages that can compile and run source files, for many languages. This guide will show how easy it is to code Python with the Atom editor. This guide assumes you do not have Python nor Atom installed in you...

The GPU offers six different memory regions. They differ in their latency, size and accessibility from different threads. Global Memory: The largest memory available and one of the few ones to exchange data with the host. This memory has the highest latency and is available for all threads. Cons...

OpenCL Kernels can be either executed on the GPU or the CPU. This allows for fallback solutions, where the customer may have a very outdated system. The programmer can also choose to limit their functionality to either the CPU or GPU. To get started using OpenCL, you'll need a 'Context' and a 'Devi...

Kernels can be compiled at runtime on the target device. To do so, you need the kernel source code the target device on which to compile a context built with the target device A quick terminology update: A program contains a collection of kernels. You can think of a program as a complete C/C...

To initiate any operation on your devices, you'll need a command queue for each device. The Queue keeps track of different calls you did to the target device and keeps them in order. Most commands can also be executed either in blocking or non-blocking mode. Creating a queue is pretty straightforwa...

So now we come down to the real stuff, executing your kernels on the parallel device. Please read about the hardware basics to fully understand the kernel dispatching. First you'll need to set the kernel arguments before actually calling the kernel. This is done via err = Cl.SetKernelArg(_kernel, ...

scons describes running phases itself. Running it over an empty SConstruct yields this: $ scons scons: Reading SConscript files ... scons: done reading SConscript files. scons: Building targets ... scons: `.' is up to date. scons: done building targets. To suppress phase messages, add -Q op...

Prepare helloworld.go (find below) package main import "fmt" func main(){ fmt.Println("hello world") } Run GOOS=linux GOARCH=arm go build helloworld.go Copy generated helloworld (arm executable) file to your target machine.

There isn't much to add to Nokogiri's "Parsing an HTML/XML Document" tutorial, which is an easy introduction to the subject, so start there, then return to this page to help fill in some gaps. Nokogiri's basic parsing attempts to clean up a malformed document, sometimes adding missing clo...

Nokogiri is somewhat like a browser, in that it will attempt to provide something useful even if the incoming HTML or XML is malformed. Unfortunately it usually does it silently, but we can ask for a list of the errors using errors: require 'nokogiri' doc = Nokogiri::XML('<node><foo/&gt...

To read an array from the device back to the host, one calls clEnqueueReadBuffer($queue, $memobj, $blocking, $offset, $size, $target, 0, null, null); The $queue is the CommandQueue which was used to allocate the memory on the device. The $memobj contains the address to the device memory, $offset...

Reading an image is almost like reading an array. The only difference beeing that the size and offset need to be three-dimensional. clEnqueueReadImage($queue, $memobj, $blocking, $offset, $size, $stride, $slice_pitch, $target, 0, null, null); The $stride defines how many bytes a row has. Normall...

To copy a texture to the device there are two steps necessary Allocate the memory on the device Copy the image to the device _mem = clCreateImage2D($context, $mem_flags, $image_format, $width, $height, $stride, $source, &err); The $mem_flags define how the memory is allocated. It can...