phstudy’s gists

phstudy / Iterables.java

Last active June 4, 2016 16:59 — forked from popcornylu/Iterables.java

Iterable transformation

	import org.apache.commons.collections4.IterableUtils;

	import java.util.function.Function;

	public class Iterables {
	public static <F, T> Iterable<T> map(
	Iterable<F> iterable,
	Function<F, T> mapper) {
	return IterableUtils.transformedIterable(iterable, (x) -> mapper.apply(x));
	}

phstudy / crash.log

Created February 5, 2016 09:30

2016-02-05 azure sg vm crash


	Feb 5 09:01:01 localhost systemd: Started Session 81 of user root.
	Feb 5 09:01:01 localhost systemd: Starting Session 81 of user root.
	Feb 5 09:01:01 localhost systemd: Removed slice user-0.slice.
	Feb 5 09:01:01 localhost systemd: Stopping user-0.slice.
	Feb 5 10:01:01 localhost systemd: Created slice user-0.slice.
	Feb 5 10:01:01 localhost systemd: Starting user-0.slice.
	Feb 5 10:01:01 localhost systemd: Started Session 82 of user root.
	Feb 5 10:01:01 localhost systemd: Starting Session 82 of user root.
	Feb 5 10:01:01 localhost systemd: Removed slice user-0.slice.

phstudy / create_docker_vm.ps1

Created April 25, 2015 04:13

create docker vm

azure vm docker create -e 22 -l 'West US' VM_NAME "b39f27a8b8c64d52b05eac6a62ebad85__Ubuntu-14_04-LTS-amd64-server-20140618.1-en-us-30GB" ACCOUNT PASSWORD

phstudy / install_windows_azure-cli.ps1

Created April 25, 2015 02:12

install azure-cli and download certificate

	npm install azure-cli -g

	azure account download

phstudy / install_windows_docker_client.ps1

Last active August 29, 2015 14:19

install windows docker client

	iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))

	choco install docker -y

	choco install nodejs.install -y

	choco install rsync -y

	choco install openssl.light -y

phstudy / 5postgres.sh

Created April 25, 2015 00:29

run 5 postgres container

	for i in 1 2 3 4 5; do
	sudo docker run --name="postgres-$i" -d postgres
	done

phstudy / Vagrantfile

Created April 25, 2015 00:27

run 5 vms

	Vagrant.configure("2") do \|config\|
	config.vm.define "vm1" do \|vm1\|
	vm1.vm.box = "puppetlab-centos-64-nocm"
	end

	config.vm.define "vm2" do \|vm2\|
	vm2.vm.box = "puppetlab-centos-64-nocm"
	end

	config.vm.define "vm3" do \|vm3\|

phstudy / AwsSignatureV4Utils.java

Created April 21, 2015 17:32

AWS Signature Version 4 Utils for Java

	import java.io.UnsupportedEncodingException;
	import java.security.InvalidKeyException;
	import java.security.NoSuchAlgorithmException;

	import javax.crypto.Mac;
	import javax.crypto.spec.SecretKeySpec;

	import org.apache.shiro.codec.Hex;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

phstudy / MapApplication.java

Created March 13, 2015 08:58

side effect mapUsingReduce

	public class MapApplication {

	// case 1
	public static <I, O> List<O> mapUsingCollect(Stream<I> stream, Function<I, O> mapper) {
	return stream.collect(ArrayList::new, (acc, element) -> acc.add(mapper.apply(element)), ArrayList::addAll);
	}

	// case 2
	public static <I, O> List<O> mapUsingReduce(Stream<I> stream, Function<I, O> mapper) {
	return stream.reduce(new ArrayList<>(), (acc, element) -> {

phstudy / gist:32686673db55c4213364

Created January 23, 2015 10:40

logstash-logback-encoder.json

	{
	"@timestamp": "2015-01-23T10:38:18.065+00:00",
	"@version": 1,
	"@message": "0:0:0:0:0:0:0:1 - - [2015-01-23T10:38:18.065+00:00] \"GET /t HTTP/1.1\" 200 43",
	"@fields.method": "GET",
	"@fields.protocol": "HTTP/1.1",
	"@fields.status_code": 200,
	"@fields.requested_url": "GET /t HTTP/1.1",
	"@fields.requested_uri": "/t",
	"@fields.remote_host": "0:0:0:0:0:0:0:1",

Yuan-Kuei Hsueh phstudy