Prezentace z jOpenSpace 2011. Jak pomocí jedné třídy vytvořit system tray notifikátor pro vzdálené použití (běží jako HTTP server). Více na: https://github.com/kwart/Notifier

1. Remote Notifications
Integrace desktopu a webu v Javě – jednoduše a bez závislostí!
Josef Cacek
Siemens IT Solutions and Services
Brno

2. System Tray Icon
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3. System Tray Icon
import java.awt.*;
if (SystemTray.isSupported()) {
Image img = Toolkit.getDefaultToolkit().getImage("coffee.png");
PopupMenu popup = // ... ;
TrayIcon trayIcon = new TrayIcon(img, "My own tooltip", popup);
trayIcon.setImageAutoSize(true);
//trayIcon.addMouseListener(...);
//The MOUSE_ENTERED and MOUSE_EXITED mouse events are not supported.
SystemTray.getSystemTray().add(trayIcon);
//...
trayIcon.displayMessage("Title", "I like it.", TrayIcon.MessageType.INFO);
}
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4. Windows Sounds
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5. Windows sounds
import java.awt.Toolkit;
Runnable sound =
(Runnable) Toolkit.getDefaultToolkit().getDesktopProperty("win.sound.asterisk");
if (sound != null) {
sound.run();
}
// "win.sound.*" properties:
// default asterisk exclamation hand question
// maximize minimize
// menuCommand menuPopup
// open close start exit
// restoreDown restoreUp
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6. HTTP server
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7. HTTP server
import com.sun.net.httpserver.*;
HttpServer httpServer = HttpServer.create(new InetSocketAddress(80), 0);
HttpHandler handler = new HttpHandler() {
public void handle(HttpExchange exchange) throws IOException {
InputStream is = exchange.getRequestBody();
//... some logic here
exchange.getResponseHeaders().add("Content-Type", "text/plain");
exchange.sendResponseHeaders(200, 0); // status - SC_OK, contentLength - chunked
OutputStreamWriter osw = new OutputStreamWriter(exchange.getResponseBody());
osw.append("Hello world wide web!nQuery: " + exchange.getRequestURI().getQuery());
is.close();
osw.close();
}
};
httpServer.createContext("/", handler);
httpServer.start();
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8. HTTP server
import com.sun.net.httpserver.*;
HttpServer httpServer = HttpServer.create(new InetSocketAddress(80), 0);
HttpHandler handler = new HttpHandler() {
public void handle(HttpExchange exchange) throws IOException {
InputStream is = exchange.getRequestBody();
//... some logic here
exchange.getResponseHeaders().add("Content-Type", "text/plain");
exchange.sendResponseHeaders(200, 0); // status - SC_OK, contentLength - chunked
OutputStreamWriter osw = new OutputStreamWriter(exchange.getResponseBody());
osw.append("Hello world wide web!nQuery: " + exchange.getRequestURI().getQuery());
is.close();
osw.close();
}
};
httpServer.createContext("/", handler);
httpServer.start();
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9. Notifier
https://github.com/kwart/Notifier
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10. Notifier – server
spustitelný JAR
– $java -jar Notifier.jar [port [defaultIcon [soundDesktopProperty]]
výchozí nastavení
– port: 8811
– ikona: sun
– zvuk: win.sound.asterisk
události
– jednoduchý klik – návrat k výchozí ikoně
– dvojklik – ukončení programu
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11. Notifier – klienti
jakýkoliv běžný HTTP klient
– firefox http://localhost:8811/teddy-bear
příkazová řádka
– wget -O - http://localhost:8811/warning
– curl -d "Build finished succesfully" http://localhost:8811/ok
– curl -d "%sname: %smessage" --connect-timeout 3 http://10.0.2.2:8811/bubble
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12. Zdrojové kódy ke stažení
– https://github.com/kwart/Notifier
API dokumentace
– System Tray
http://download.oracle.com/javase/6/docs/api/java/awt/SystemTray.html
– Windows Sounds
http://download.oracle.com/javase/1.4.2/docs/guide/swing/1.4/w2k_props.html
– HTTP server
http://download.oracle.com/javase/6/docs/jre/api/net/httpserver/spec/
šablona prezentace od Chih-Hao Tsai http://technology.chtsai.org/impress/
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