{"id":489,"date":"2013-07-06T16:17:01","date_gmt":"2013-07-06T14:17:01","guid":{"rendered":"http:\/\/www.jensd.de\/wordpress\/?p=489"},"modified":"2013-12-19T12:46:41","modified_gmt":"2013-12-19T11:46:41","slug":"raspi-does-the-home-automation-part-ii-crossing-the-bridge-to-javafx","status":"publish","type":"post","link":"https:\/\/www.jensd.de\/wordpress\/?p=489","title":{"rendered":"RasPi does the Home Automation (Part II): Crossing the bridge to JavaFX"},"content":{"rendered":"

Hi,<\/p>\n

before JavaFX can take over, I need some bottom-up stuff to control my Intertechno<\/a>-Devices.<\/p>\n

Basically this is the schema:<\/strong>
\n\"RaspiSendSetup\"<\/a><\/p>\n

Right now I have 2 radio intermediate adapters<\/a> to switch the lights of my terrace\/garden and the fountain. And one of these to control the lights in front of my house (cool: can be combined with existing light switch) :
\n\"ITL-230_assembly\"<\/a><\/p>\n

Some Details:<\/strong><\/p>\n

Pragmatic approach: “Runtime.getRuntime().exec(...)<\/code>“<\/strong>
\nClearly to pipe the data to the C implementation via a JNI call would be nice, but to get ahead in time by now for me it’s ok to use Runtime.getRuntime().exec(...)<\/code> to run my “send” CLI command:<\/p>\n

[java]
\n public class Send {<\/p>\n

public enum Command {
\n TURN_OFF, TURN_ON;
\n }<\/p>\n

public static final String SEND_COMMAND = “\/home\/pi\/rcswitch-pi\/send”;
\n private static final Logger logger = Logger.getLogger(Send.class.getName());<\/p>\n

public void send(String deviveCode, Command command) {
\n try {
\n String commandLine = String.
\n format(“%s %s %s”, SEND_COMMAND, deviveCode, command.ordinal());
\n logger.log(Level.INFO, “send: {0}”, commandLine);<\/p>\n

Runtime rt = Runtime.getRuntime();
\n Process pr = rt.exec(commandLine);
\n BufferedReader rd = new BufferedReader(new InputStreamReader(pr.
\n getInputStream()));
\n String line;
\n while ((line = rd.readLine()) != null) {
\n logger.log(Level.INFO, line);
\n }<\/p>\n

} catch (IOException ex) {
\n Logger.getLogger(Send.class.getName()).
\n log(Level.SEVERE, null, ex);
\n }
\n }<\/p>\n

public boolean isSendCommandExecutable(){
\n return Files.isExecutable(Paths.get(SEND_COMMAND));
\n }
\n}
\n[\/java]<\/p>\n

The Java-Send<\/code> is used by DeviceControl<\/code>: <\/p>\n

[java]
\npublic class DeviceControl {<\/p>\n

private Send send = new Send();
\n private static final Logger logger = Logger.getLogger(DeviceLoader.class.getName());
\n private static DeviceControl me;<\/p>\n

private DeviceControl() {
\n }<\/p>\n

public static DeviceControl get() {
\n if (me == null) {
\n me = new DeviceControl();
\n }
\n return me;
\n }<\/p>\n

public void turnOn(Device device) {
\n logger.log(Level.INFO, “About to {0} {1} ({2})”, new Object[]{Send.Command.TURN_ON, device.getName(), device.getId()});
\n if (send.isSendCommandExecutable()) {
\n send.send(device.getId(), Send.Command.TURN_ON);
\n } else {
\n logger.log(Level.SEVERE, “{0} could not be executed!”, Send.SEND_COMMAND);
\n }
\n }<\/p>\n

public void turnOff(Device device) {
\n logger.log(Level.INFO, “About to {0} {1} ({2})”, new Object[]{Send.Command.TURN_OFF, device.getName(), device.getId()});
\n if (send.isSendCommandExecutable()) {
\n send.send(device.getId(), Send.Command.TURN_OFF);
\n } else {
\n logger.log(Level.SEVERE, “{0} could not be executed!”, Send.SEND_COMMAND);
\n }
\n }
\n}
\n[\/java]<\/p>\n

A Intertechno<\/a>-appliance is represented by Device<\/code>:<\/p>\n

[java]
\npublic class Device {<\/p>\n

private String name;
\n private String houseCode;
\n private String group;
\n private String device;<\/p>\n

public Device() {
\n }<\/p>\n

public Device(String name, String houseCode, String group, String device) {
\n this.name = name;
\n this.houseCode = houseCode;
\n this.group = group;
\n this.device = device;
\n }<\/p>\n

public String getId() {
\n return String.format(“%s %s %s”, houseCode, group, device);
\n }<\/p>\n

[…. getter & setter ….]<\/p>\n

}
\n[\/java] <\/p>\n

The available Devices<\/code> are defined via a configuration-file: <\/p>\n

[xml]
\n
\n
\n
\n
\n
\n
\n <\/devices>
\n<\/home-configuration>
\n[\/xml]<\/p>\n

Finally utility class DeviceLoader.load();<\/code> loads the configuration and provides a List<\/code> of Devices<\/code>.
\nThe HomeControlBoardController<\/code> dynamically creates DevicePanes<\/code> according to the configured devices.<\/p>\n

That’s it for now.<\/p>\n

Next:
\nRasPi does the Home Automation (Part III): \u2018Let\u2019s Put It All Together\u2019<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Hi, before JavaFX can take over, I need some bottom-up stuff to control my Intertechno-Devices. Basically this is the schema: Right now I have 2 radio intermediate adapters to switch the lights of my terrace\/garden and the fountain. And one of these to control the lights in front of my house (cool: can be combined… <\/span>Continue Reading RasPi does the Home Automation (Part II): Crossing the bridge to JavaFX<\/span><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false,"jetpack_publicize_message":"#RaspberryPi does the #HomeAutomation (Part II): Crossing the bridge to #JavaFX http:\/\/wp.me\/p38FCL-7T","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[21,22,30,4,18],"tags":[87,88,91,76,86],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p38FCL-7T","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/489"}],"collection":[{"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=489"}],"version-history":[{"count":31,"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/489\/revisions"}],"predecessor-version":[{"id":773,"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/489\/revisions\/773"}],"wp:attachment":[{"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jensd.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}