The Magic is just a normale HTML A Tag, in whith some javascript is embedded:

javascript:function%20iprl5(){var%20d=document,z=d.createElement('scr'+'ipt'),b=d.body,l=d.location;try{if(!b)throw(0);d.title='(Saving...)%20'+d.title;z.setAttribute('src',l.protocol+'//www.instapaper.com/j/foobar?u='+encodeURIComponent(l.href)+'&t='+(new%20Date().getTime()));b.appendChild(z);}catch(e){alert('Please%20wait%20until%20the%20page%20has%20loaded.');}}iprl5();void(0)

If we unwrap that script we got

function iprl5(){
    var d=document,
    z=d.createElement('scr'+'ipt'),
    b=d.body,
    l=d.location;
    try{
        if(!b)
            throw(0);
        d.title='(Saving...) '+d.title;
        z.setAttribute('src',l.protocol+'//www.instapaper.com/j/foobar?u='+encodeURIComponent(l.href)+'&t='+(new Date().getTime()));
        b.appendChild(z);
    }catch(e){
        alert('Please wait until the page has loaded.');
    }
}
iprl5();
void(0)

The command basically just creates a script tag in the active DOM-Tree and preloads some Javascript-File. The File is then executed by the Browsers JS Runtime.
I started a litte Demo Project. You find it here on GitHub. It is based on Play! 1.2.4 (Installation Guide here).

ATM there are just two JS Templates. The first one (app/views/Application/bookmarklet.js) just contains the source for the Script-Tag itself. The second (app/views/Application/input.js) will be loaded then after the Javascript behinde that link is called.

Collecting Mails from an IMAP Server with Java is pretty easy:

package de.javastream.imapcollector;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Properties;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.internet.MimeBodyPart;
import javax.swing.JOptionPane;

public class App {

    public static void getMail(String host, String user, String passwd) throws Exception {
        Session session = Session.getDefaultInstance(new Properties());
        Store store = session.getStore("imap");
        store.connect(host, user, passwd);
        Folder folder = store.getFolder("INBOX");
        folder.open(Folder.READ_ONLY);
        // the funny part is... you can count all the messages before you download them.
        Message[] messages = folder.getMessages();
        System.out.println("there are "+messages.length+" in your INBOX.");
        for (int i = 0; i <; messages.length; i++) {
            Message m = messages[i];
            System.out.println("Nachricht: " + i);
            System.out.println("From: " + m.getFrom()[0]);
            System.out.println("Subject: " + m.getSubject());
            // some Messages are multipart messages (e.g. text with an attachement)
            if (m.getContentType().equals("multipart")) {
                Multipart mp = (Multipart) m.getContent();
                for (int j = 0; j <; mp.getCount(); j++) {
                    Part part = mp.getBodyPart(j);
                    String disposition = part.getDisposition();
                    if (disposition == null) {
                        MimeBodyPart mimePart = (MimeBodyPart) part;
                        if (mimePart.isMimeType("text/plain")) {
                            BufferedReader in = new BufferedReader(
                                    new InputStreamReader(mimePart.getInputStream()));
                            for (String line; (line = in.readLine()) != null;) {
                                System.out.println(line);
                            }
                        }
                    }
                }
            } else {
                System.out.println(m.getContent());
            }
        }
        System.out.println("done  ");
        folder.close(false);
        store.close();
    }

    public static void main(String[] args) throws Exception {
        // show some simple Dialogs to get server, username and password
        String server = JOptionPane.showInputDialog("enter your Mail Server e.g. mail.example.com");
        String user = JOptionPane.showInputDialog("enter your login e.g. user");
        String password = JOptionPane.showInputDialog("enter your mail password");
        getMail(server, user, password);
    }
}

Becource you will need the java mail lib as a dependency i just created a small maven project to add them.
Just unzip it and run

mvn exec:java

Download Maven Project for ImapCollector

Update:
A College of mine asks for the imports of that Code. I just added them to the sources. You have to include the javamail lib from Sun Oracle as a dependency to run the code.

/**
 * Raid5Stream
 * 31.03.2012
 * @author Philipp Haussleiter
 *
 */
package de.javastream.jraid;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class Raid5Stream extends OutputStream {

    public final static int PARITY_MARKER = 1;
    public final static int DATA_MARKER = 0;
    private File disks[];
    private FileOutputStream streams[];
    private int mode = 0;
    private final static int MAX_MODE = 2;
    private int[] buffer = new int[2];

    public Raid5Stream(File disks[]) throws IOException {
        super();
        if (disks.length != 3) {
            throw new RuntimeException("we need a disk count of x times 3");
        }
        int i = 0;
        this.disks = new File[disks.length];
        this.streams = new FileOutputStream[disks.length];
        for (File f : disks) {
            if (!f.exists() && !f.createNewFile()) {
                throw new RuntimeException(f.getAbsolutePath() + " does not exists and cannot be created!");
            } else {
                System.out.println("using " + f.getAbsolutePath() + "\n");
                this.disks[i] = f;
                this.streams[i] = new FileOutputStream(f);
            }
            i++;
        }
        writerMarker();
    }

    private void writerMarker() throws IOException {
        for (int i = 0; i < this.streams.length; i++) {
            if (i % 3 == 0) {
                this.streams[i].write(PARITY_MARKER);
            } else {
                this.streams[i].write(DATA_MARKER);
            }
        }
    }

    @Override
    public void write(int i) throws IOException {
        switch (mode) {
            case MAX_MODE:
                this.streams[mode].write(buffer[0] ^ buffer[1]);
                mode = 0;
            default:
                this.buffer[mode] = i;
                this.streams[mode].write(i);
                mode++;
        }
    }
}

Using it is easy as:

...
public class App {

    public static void main(String[] args) throws IOException {
        File raid5_disk1 = new File("raid5.disk1");
        File raid5_disk2 = new File("raid5.disk2");
        File raid5_disk3 = new File("raid5.disk3");
        long count = 0;
        Raid5Stream raid5Stream = new Raid5Stream(new File[]{raid5_disk1, raid5_disk2, raid5_disk3});
        FileInputStream in = new FileInputStream("/dev/random");
        BufferedInputStream bis = new BufferedInputStream(in);
        BufferedOutputStream raid5bos = new BufferedOutputStream(raid5Stream);
        while(count < 1024*1024*2){
            raid5bos.write(bis.read());
            count++;
        }
        raid5bos.close();
        bis.close();
    }
}

Good sources for more reading are the Wikipedia Articles about RAID and XOR.

1. There are (a really small) number of CLI-Tools, that giving no constant output over the STD-OUT (the standard output the Process-Class uses for output)
2. There is no “elegant” way to implement a process call into your project.

To solve this Problem I created a basic HelperClass, that calls the System over SSH (with the Convenience to work remote and the side-effect to always get STD-compatible output).
I am primarely using it for a fun project SAM i started some months ago to try to create a Management-Tool for Unices and Windows with a very low client-side footprint.

The first Class is used to capsulate the basic SSH Calls:

// some imports...
 public class SystemHelper {
    private Runtime r;
    private String sshPrefix = "";

    // call with $user and 127.0.0.1 to run local command.
    public SystemHelper(String user, String ip) {
        r = Runtime.getRuntime();
        sshPrefix = " ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no " + user + "@" + ip;
    }

    public void runCommand(String command, ProcessParser pp) {
        try {
            Logger.info("running: " + this.sshPrefix + " " + command);
            Process p = r.exec(this.sshPrefix + " " + command);
            InputStream in = p.getInputStream();
            BufferedInputStream buf = new BufferedInputStream(in);
            InputStreamReader inread = new InputStreamReader(buf);
            BufferedReader bufferedreader = new BufferedReader(inread);
            pp.parse(bufferedreader);
            try {
                if (p.waitFor() != 0) {
                    Logger.info("exit value = " + p.exitValue());
                }
            } catch (InterruptedException e) {
                System.err.println(e);
            } finally {
                // Close the InputStream
                bufferedreader.close();
                inread.close();
                buf.close();
                in.close();
            }
        } catch (IOException ex) {
            Logger.error(ex.getLocalizedMessage());
        }
    }
}

ProcessParser is an interface that defines the methode parse, accepting a BufferedReader for parsing the output of the Process. Unfortunately there is no timeout ATM to kill a hanging SSH-Call.

 public interface ProcessParser {
     public void parse(BufferedReader bufferedreader);
 }

The most basic (Output-)Parser looks like this:

    public String getPublicSSHKey() {
        SimpeOutputPP so = new SimpeOutputPP();
        String command = "cat ~/.ssh/id_rsa.pub";
        runCommand(command, so);
        if (!so.getOutput().isEmpty()) {
            return so.getOutput().get(0);
        }
        return "";
    }

This returns just the public SSH-Key of the current user. I implemented some more parsers for the output of apt (dpkg), rpm and pacman. You can find them in the github project here.

So from the old version (that was just some plain tables, flowing around)

I created a new Model with more Tables, connected to each other. Basically i devided the Model into a basic Fact (Count) and some Dimensions (for every Value):

With my current values (around 22k Facts), i have already to limit the facts that are queryed from the Datebase. I wrote a short script to migrate all old Datasets to the new Data-Model.

I will just summarize the basic steps to setup a basic VM for Mysql (you should also read the original post here).
After you installed your VM (setup Networking/ZFS Pool – you should use >3 virtual harddisks), you login into your new system and perfom the following steps:

Check for VM-Templates to install:

# dsadm avail
UUID                                 OS      PUBLISHED  URN
9dd7a770-59c7-11e1-a8f6-bfd6347ab0a7 smartos 2012-02-18 sdc:sdc:percona:1.3.8
467ca742-4873-11e1-80ea-37290b38d2eb smartos 2012-02-14 sdc:sdc:smartos64:1.5.3
7ecb80f6-4872-11e1-badb-3f567348a4b1 smartos 2012-02-14 sdc:sdc:smartos:1.5.3
1796eb3a-48d3-11e1-94db-3ba91709fad9 smartos 2012-01-27 sdc:sdc:riak:1.5.5
86112bde-43c4-11e1-84df-8f7fd850d78d linux   2012-01-25 sdc:sdc:centos6:0.1.1
...
5fef6eda-05f2-11e1-90fc-13dac5e4a347 smartos 2011-11-03 sdc:sdc:percona:1.2.2
d91f80a6-03fe-11e1-8f84-df589c77d57b smartos 2011-11-01 sdc:sdc:percona:1.2.1
...
9199134c-dd79-11e0-8b74-1b3601ba6206 smartos 2011-09-12 sdc:sdc:riak:1.4.1
3fcf35d2-dd79-11e0-bdcd-b3c7ac8aeea6 smartos 2011-09-12 sdc:sdc:mysql:1.4.1
...
7456f2b0-67ac-11e0-b5ec-832e6cf079d5 smartos 2011-04-15 sdc:sdc:nodejs:1.1.3
febaa412-6417-11e0-bc56-535d219f2590 smartos 2011-04-11 sdc:sdc:smartos:1.3.12

I choose a percona VM (that is a VM with MySQL and some Backup Stuff pre-install – more here).

# dsadm import  a9380908-ea0e-11e0-aeee-4ba794c83c33
a9380908-ea0e-11e0-aeee-4ba794c83c33 doesnt exist. continuing with install
a9380908-ea0e-11e0-aeee-4ba794c83c33 successfully installed

Then you need to create a basic VM-Config file /tmp/percona-vm:

{
        "alias": "percona-vm",
        "brand": "joyent",
        "dataset_uuid": "a9380908-ea0e-11e0-aeee-4ba794c83c33",
        "dns_domain": "haussleiter.de",
        "quota": "10",
        "nics": [
                {
                        "nic_tag": "admin",
                        "ip": "192.168.178.42",
                        "netmask": "255.255.255.0",
                        "gateway": "192.168.178.1"
                }
        ]
}

You are now able to create your VM:

# vmadm create -f /tmp/percona-vm
Successfully created df4108a7-c3af-4372-b959-6066c70661e9

You can check if your new VM is running:

# vmadm list
UUID                                  TYPE  RAM      STATE             ALIAS
df4108a7-c3af-4372-b959-6066c70661e9  OS    256      running           percona-vm

# ping 192.168.178.42
192.168.178.42 is alive

You can login in your VM (that is a Zone to be precisely with the zlogin command):

# zlogin df4108a7-c3af-4372-b959-6066c70661e9
[Connected to zone 'df4108a7-c3af-4372-b959-6066c70661e9' pts/2]

Becourse i could not found any information about the predifined MySQL Password, i just change it using standard-Mylsq CMDs:
First you need to stop the Mysql Service:

# svcadm disable mysql:percona

Then you need to start Mysql again with skipping the tables for user-credentials.

# mysqld_safe --skip-grant-tables &

Enter Mysql CMD-Tools and change the root Password:

# mysql -uroot
mysql> use mysql;
mysql> update user set password=PASSWORD("NEW-ROOT-PASSWORD") where User='root';
mysql> flush privileges;
mysql> quit;

You need to shutdown your MySQL instance:

# prstat
   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP
...
 10921 root     4060K 3016K cpu2     1    0   0:00:00 0.0% prstat/1
 10914 root     3200K 2236K sleep    1    0   0:00:00 0.0% bash/1
 10913 root     3172K 2244K sleep    1    0   0:00:00 0.0% login/1
 10894 mysql 207M 37M sleep 1 0 0:00:00 0.0% mysqld/27
...

kill 10894

You now can start the MySQL Daemon again.

# svcadm enable mysql:percona

I hope i will have time to look into more features of SmartOS. It seems to be a great System to Virtualize a lot of differend Service. It also supports virtualizing Windows VMs with KVM.

There is always the possibility to set the apps basic URL within your app-Context. Together with setting the prefix in a System Enviroment it was possible to achieve the wanted app behaviour.
How to configure a Rails3 App with Passenger in a Sub-URI Configuration please have a look in the Phusion Passenger users guide here or in another blog post here.

The Basic Apache Configuration looks somehow like this:

<VirtualHost *:80>
    ServerName      example.com
    ServerAdmin     admin@example.com
    DocumentRoot    /var/www
    # we added two file hardlinks from our apps public folder to /var/www/dev,  /var/www/prod
        <Directory /var/www/prod>
        ...
        SetEnv RAILS_RELATIVE_URL_ROOT /prod
        ...
    </Directory>
        <Directory /var/www/dev>
        ...
        SetEnv RAILS_RELATIVE_URL_ROOT /dev
        ...
    </Directory>
</VirtualHost>

The last part is to add a Before-Hook to the ApplicationController for updating the apps default_url if RAILS_RELATIVE_URL_ROOT is set:

class ApplicationController < ActionController::Base
  protect_from_forgery

  before_filter :action_set_url_options

  def action_set_url_options
    if ENV['RAILS_RELATIVE_URL_ROOT']
      @host = request.host+":"+request.port.to_s+"/"+ENV['RAILS_RELATIVE_URL_ROOT']
    else
      @host = request.host+":"+request.port.to_s
    end
    Rails.application.routes.default_url_options = { :host => @host}
  end
end