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Chen Chao Shih (Frank) jcfrank

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@jcfrank
jcfrank / visitor.md
Last active August 29, 2015 14:03
Visitor pattern -- my understanding

Roles

  • Visitor interface

    Defines visit methods for all types that could be visited.

  • Visitor implementations

    Defines visit behavior for different types.

@jcfrank
jcfrank / decorator.md
Last active August 29, 2015 14:03
Python decorator pattern

Desc

Unlike java, python uses nested functions to implement decorators.

This could be tricky when we first try to understand.

A few features of python are applied:

  1. python functions are objects.
@jcfrank
jcfrank / hk2-sample.md
Last active August 29, 2015 14:13
HK2 is a dependency injection framework used in Jersey 2. This pice of code demonstrate how to add custom bindings.

HK2

Jersey 2 uses HK2 as dependency injection framework.
Although there are modules for integrating with Guice or Spring.
We can still just use HK2 to avoid using two frameworks for the same purposes.
Following snippets are two very basic sample for using HK2.

Sample




  


  




    


          
    

      

        
        

          

              @jcfrank
          

          

            
                jcfrank
                / angularjs-sample.md
            
            

              Last active
              August 29, 2015 14:13
            

              
                a basic angular rest client app.
              
          

        

      

        

  

      

    
Simple Angularjs app


This is a basic rest client app, very useful for creating demo page.


Backend


First, set up node.js as interface backend.

Dependencies:


  "dependencies": {



  


  




    


          
    

      

        
        

          

              @jcfrank
          

          

            
                jcfrank
                / emberjs-sample.md
            
            

              Last active
              August 29, 2015 14:13
            

              
                A basic ember rest client sample. Useful for demo page.
              
          

        

      

        

  

      

    
Simple Emberjs app


Backend


Dependencies:


  "dependencies": {
    "jade": "*",
    "coffee-script": "*",



  


  




    


          
    

      

        
        

          

              @jcfrank
          

          

            
                jcfrank
                / flask-sample.md
            
            

              Last active
              August 29, 2015 14:13
            

              
                A flask restful api server sample.
              
          

        

      

        

  

      

    
Simple Flask app


This snippet is from an API server of another open source project.

It was written to work with webpy, but I change it to use Flask.


requirements:


flask
flask-restful




  


  




    


          
    

      

        
        

          

              @jcfrank
          

          

            
                jcfrank
                / django-sample.md
            
            

              Last active
              August 29, 2015 14:13
            

              
                A django app sample. Only to remind myself how to set up django urls and views.
              
          

        

      

        

  

      

    
Simple Django app


New a root app


$ django-admin.py startproject mysite

$ cd mysite

$ python manage.py startapp myrestapp


mysite/settings.py





  


  




    


          
    

      

        
        

          

              @jcfrank
          

          

            
                jcfrank
                / emacs-cheatsheet.md
            
            

              Last active
              March 18, 2018 15:17
            

              
                Emacs cheat sheet.
              
          

        

      

        

  

      

    
Emacs 24.3 cheat sheet






Keys
Desc






C-x C-c
quit




M-x kill-emacs
quit without saving




C-x s
Save, Promt




C-x C-s
Save




C-@
Mark mode







  


  




    


          
    

      

        
        

          

              @jcfrank
          

          

            
                jcfrank
                / erlang-websocket-sample.md
            
            

              Last active
              November 3, 2022 07:15
            

              
                A simple erlang cowboy websocket app
              
          

        

      

        

  

      

    
Simple Cowboy websocket app


Cowboy is such a simple web framework.

This is a sample websocket app.


new project


Use erlang.mk. Not that you have to, but it'd make things a bit easier.

First, create a folder for project, ex. myproject.

$ cd myproject/



  


  




    


          
    

      

        
        

          

              @jcfrank
          

          

            
                jcfrank
                / jersey2-mvc-sample.md
            
            

              Last active
              February 26, 2021 13:14
            

              
                A basic Jersey 2 mvc sample with Mustache.
              
          

        

      

        

  

      

    
Jersey 2 MVC


Jersey 2 also supports server-side template rendering.

This is a simple mustache sample.


Gradle


build.gradle

Add jerset mvc dependencies.