alvinsj’s gists

alvinsj / memory.rb

Created August 18, 2014 12:54

Analyze object size. Usage: Memory.analyze(object)

	module Memory
	# sizes are guessed, I was too lazy to look
	# them up and then they are also platform
	# dependent
	REF_SIZE = 4 # ?
	OBJ_OVERHEAD = 4 # ?
	FIXNUM_SIZE = 4 # ?

	# informational output from analysis
	MemoryInfo = Struct.new :roots, :objects, :bytes, :loops

alvinsj / english.html

Last active August 29, 2015 13:57

0324

alvinsj / doi.js

Created March 22, 2014 03:59

doi concept

	(function(w){

	// doi.viewController(config)
	// config.viewDelegate
	var homeController = doi.ViewController(function(){

	// doi.view.TableView(config)
	// config.tableViewDelegate
	// config.tableViewDatasource
	var tableView = doi.view.TableView({

alvinsj / my_task.rb

Created March 20, 2014 08:11

monitor rake task with god. ref: http://makandracards.com/makandra/2371-monitor-a-rake-task-with-god

	task :my_task => :environment do
	File.open(ENV['PIDFILE'], 'w') { \|f\| f << Process.pid } if ENV['PIDFILE']
	Model.perform_task!
	end

alvinsj / cachable.java

Created December 6, 2013 14:57

	public class Product implements Cachable{

	public Product(String type, String key){
	mType = type;
	mKey = key;
	}

	public String cacheId() {
	return mKey;
	}

alvinsj / cachestore.java

Created December 6, 2013 14:50

	// Initialization
	cacheStore = new CacheStore(getContext()) {
	@Override
	public String storeName() {
	return "ProductsStore";
	}
	};

	// store value
	cacheStore.put(TYPE, KEY, VALUE);

alvinsj / download.java

Last active December 30, 2015 11:49

	new APIRequest( new APIClient(HomeActivity.this), APP_SERVER+"/download_pdf", APIRequest.GET)
	.withDefaultParams(defaultParamsHashMap())
	.addParam("format", "json")
	.addParam("id", pdfId)
	.addHeaderParam("Referer", APP_REFERER);
	.startDownload(CACHE_ID, DOWNLOAD_FOLDER, new APIDataRequestHandler(){

	@Override
	public void before(){
	showProgressBar();

alvinsj / cached-apirequest.java

Last active December 30, 2015 11:39

	new APIRequest( new APIClient(HomeActivity.this), APP_SERVER+"/latest_news", APIRequest.GET)
	.withDefaultParams(defaultParamsHashMap())
	.addParam("format", "json")
	.addParam("limit", 10)
	.addHeaderParam("Referer", APP_REFERER);
	.startWithCache(CacheStategy.RESPONSE_VERSION, CACHE_GROUP_KEY, CACHE_KEY,new JSONRequestHandler(){
	@Override
	public String getVersion(HttpEntity response){
	return versionFromResponse(response);
	}

alvinsj / apirequest.java

Last active December 30, 2015 11:39

	new APIRequest( new APIClient(HomeActivity.this), APP_SERVER+"/search", APIRequest.GET)
	.withDefaultParams(defaultParamsHashMap())
	.addParam("format", "json")
	.addParam("q", searchTerm)
	.addHeaderParam("Referer", APP_REFERER);
	.start(new JSONRequestHandler(){

	@Override
	public void before(){
	showProgressBar();

alvinsj / db-migrate-0001_create_table_s3_uploads

Created August 28, 2013 07:55

upload and serve file to amazon s3 with sinatra [improved] reference: http://www.millwoodonline.co.uk/blog/upload-to-amazon-s3-with-sinatra

	class CreateTableS3Uploads < ActiveRecord::Migration
	def up
	create_table :s3_uploads do \|t\|
	t. :url
	t.timestamps
	end
	end
	def down
	drop_table :s3_uploads
	end

Alvin alvinsj