<?xml version="1.0" encoding="iso-8859-1" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<!--http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd-->
<html xmlns="http://www.w3.org/1999/xhtml"
>
<head><title>Examples</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name="generator" content="TeX4ht (http://www.cse.ohio-state.edu/~gurari/TeX4ht/)" />
<meta name="originator" content="TeX4ht (http://www.cse.ohio-state.edu/~gurari/TeX4ht/)" />
<!-- xhtml,2,html -->
<meta name="src" content="dbus-java.tex" />
<meta name="date" content="2016-03-02 10:34:00" />
<link rel="stylesheet" type="text/css" href="dbus-java.css" />
</head><body
>
<!--l. 1064--><div class="crosslinks"><p class="noindent">[<a
href="dbus-javase13.html" >prev</a>] [<a
href="dbus-javase13.html#taildbus-javase13.html" >prev-tail</a>] [<a
href="#taildbus-javase14.html">tail</a>] [<a
href="dbus-java.html# " >up</a>] </p></div>
<h3 class="sectionHead"><span class="titlemark">14 </span> <a
id="x41-4400014"></a>Examples</h3>
<!--l. 1066--><p class="noindent" >As an example here are a complete set of interfaces for the
bluemon<span class="footnote-mark"><a
href="dbus-java42.html#fn24x0"><sup class="textsuperscript">24</sup></a></span><a
id="x41-44001f24"></a>
daemon, which communicates over D-Bus. These interfaces were all created by querying
introspection data over the bus.
</p><!--l. 1071--><p class="indent" >
</p>
<hr class="figure" /><div class="figure"
>
<a
id="x41-4400221"></a>
<div class="center"
>
<!--l. 1074--><p class="noindent" >
</p>
<div class="verbatim" id="verbatim-32">
package cx.ath.matthew.bluemon;
 <br />import org.freedesktop.dbus.DBusInterface;
 <br />import org.freedesktop.dbus.UInt32;
 <br />public interface Bluemon extends DBusInterface
 <br />{
 <br />  public Triplet<String, Boolean, UInt32>
 <br />  Status(String address);
 <br />}
</div>
<!--l. 1084--><p class="nopar" ></p></div>
<br /> <div class="caption"
><span class="id">Figure 21: </span><span
class="content">cx/ath/matthew/bluemon/Bluemon.java</span></div><!--tex4ht:label?: x41-4400221 -->
</div><hr class="endfigure" />
<!--l. 1089--><p class="indent" >
</p>
<hr class="figure" /><div class="figure"
>
<a
id="x41-4400322"></a>
<div class="center"
>
<!--l. 1092--><p class="noindent" >
</p>
<div class="verbatim" id="verbatim-33">
package cx.ath.matthew.bluemon;
 <br />import org.freedesktop.dbus.DBusInterface;
 <br />import org.freedesktop.dbus.DBusSignal;
 <br />import org.freedesktop.dbus.exceptions.DBusException;
 <br />public interface ProximitySignal extends DBusInterface
 <br />{
 <br />   public static class Connect extends DBusSignal
 <br />   {
 <br />      public final String address;
 <br />      public Connect(String path, String address)
 <br />                                 throws DBusException
 <br />      {
 <br />         super(path, address);
 <br />         this.address = address;
 <br />      }
 <br />   }
 <br />   public static class Disconnect extends DBusSignal
 <br />   {
 <br />      public final String address;
 <br />      public Disconnect(String path, String address)
 <br />                                 throws DBusException
 <br />      {
 <br />         super(path, address);
 <br />         this.address = address;
 <br />      }
 <br />   }
 <br />}
</div>
<!--l. 1121--><p class="nopar" ></p></div>
<br /> <div class="caption"
><span class="id">Figure 22: </span><span
class="content">cx/ath/matthew/bluemon/ProximitySignal.java</span></div><!--tex4ht:label?: x41-4400322 -->
</div><hr class="endfigure" />
<!--l. 1126--><p class="indent" >
</p>
<hr class="figure" /><div class="figure"
>
<a
id="x41-4400423"></a>
<div class="center"
>
<!--l. 1129--><p class="noindent" >
</p>
<div class="verbatim" id="verbatim-34">
package cx.ath.matthew.bluemon;
 <br />import org.freedesktop.dbus.Tuple;
 <br />/** Just a typed container class */
 <br />public final class Triplet <A,B,C> extends Tuple
 <br />{
 <br />   public final A a;
 <br />   public final B b;
 <br />   public final C c;
 <br />   public Triplet(A a, B b, C c)
 <br />   {
 <br />      super(a, b, c);
 <br />      this.a = a;
 <br />      this.b = b;
 <br />      this.c = c;
 <br />   }
 <br />}
</div>
<!--l. 1147--><p class="nopar" ></p></div>
<br /> <div class="caption"
><span class="id">Figure 23: </span><span
class="content">cx/ath/matthew/bluemon/Triplet.java</span></div><!--tex4ht:label?: x41-4400423 -->
</div><hr class="endfigure" />
<!--l. 1152--><p class="indent" >
</p>
<hr class="figure" /><div class="figure"
>
<a
id="x41-4400524"></a>
<div class="center"
>
<!--l. 1155--><p class="noindent" >
</p>
<div class="verbatim" id="verbatim-35">
package cx.ath.matthew.bluemon;
 <br />import org.freedesktop.dbus.DBusConnection;
 <br />import org.freedesktop.dbus.DBusSigHandler;
 <br />import org.freedesktop.dbus.DBusSignal;
 <br />import org.freedesktop.dbus.UInt32;
 <br />import org.freedesktop.dbus.exceptions.DBusException;
 <br />
 <br />public class Query {
 <br />   public static void main(String[] args) {
 <br />      String btid;
 <br />      Triplet<String, Boolean, UInt32> rv = null;
 <br />
 <br />      if (0 == args.length) btid = "";
 <br />      else btid = args[0];
 <br />
 <br />      DBusConnection conn = null;
 <br />      try {
 <br />         conn = DBusConnection.getConnection(DBusConnection.SYSTEM);
 <br />      } catch (DBusException De) {
 <br />         System.exit(1);
 <br />      }
 <br />      Bluemon b = (Bluemon) conn.getRemoteObject(
 <br />            "cx.ath.matthew.bluemon.server",
 <br />            "/cx/ath/matthew/bluemon/Bluemon", Bluemon.class);
 <br />      try {
 <br />         rv = b.Status(btid);
 <br />      } catch (RuntimeException Re) {
 <br />         System.exit(1);
 <br />      }
 <br />      String address = rv.a;
 <br />      boolean status = rv.b;
 <br />      int level = rv.c.intValue();
 <br />
 <br />      if (status)
 <br />         System.out.println("Device "+address+
 <br />                            " connected with level "+level);
 <br />      else
 <br />         System.out.println("Device "+address+" not connected");
 <br />      conn.disconnect();
 <br />   }
 <br />}
</div>
<!--l. 1198--><p class="nopar" ></p></div>
<br /> <div class="caption"
><span class="id">Figure 24: </span><span
class="content">cx/ath/matthew/bluemon/Query.java</span></div><!--tex4ht:label?: x41-4400524 -->
</div><hr class="endfigure" />
<!--l. 1203--><p class="indent" >
</p>
<hr class="figure" /><div class="figure"
>
<a
id="x41-4400625"></a>
<div class="center"
>
<!--l. 1206--><p class="noindent" >
</p>
<div class="verbatim" id="verbatim-36">
/* cx/ath/matthew/bluemon/Client.java */
 <br />package cx.ath.matthew.bluemon;
 <br />
 <br />import org.freedesktop.dbus.DBusConnection;
 <br />import org.freedesktop.dbus.DBusSigHandler;
 <br />import org.freedesktop.dbus.DBusSignal;
 <br />import org.freedesktop.dbus.exceptions.DBusException;
 <br />
 <br />public class Client implements DBusSigHandler
 <br />{
 <br />   public void handle(DBusSignal s)
 <br />   {
 <br />      if (s instanceof ProximitySignal.Connect)
 <br />         System.out.println("Got a connect for "
 <br />               +((ProximitySignal.Connect) s).address);
 <br />      else if (s instanceof ProximitySignal.Disconnect)
 <br />         System.out.println("Got a disconnect for "
 <br />               +((ProximitySignal.Disconnect) s).address);
 <br />   }
 <br />   public static void main(String[] args)
 <br />   {
 <br />      System.out.println("Creating Connection");
 <br />      DBusConnection conn = null;
 <br />      try {
 <br />         conn = DBusConnection
 <br />                  .getConnection(DBusConnection.SYSTEM);
 <br />      } catch (DBusException DBe) {
 <br />         System.out.println("Could not connect to bus");
 <br />         System.exit(1);
 <br />      }
 <br />
 <br />      try {
 <br />         conn.addSigHandler(ProximitySignal.Connect.class,
 <br />         new Client());
 <br />         conn.addSigHandler(ProximitySignal.Disconnect.class,
 <br />         new Client());
 <br />      } catch (DBusException DBe) {
 <br />         conn.disconnect();
 <br />         System.exit(1);
 <br />      }
 <br />   }
 <br />}
</div>
<!--l. 1250--><p class="nopar" ></p></div>
<br /> <div class="caption"
><span class="id">Figure 25: </span><span
class="content">cx/ath/matthew/bluemon/Client.java</span></div><!--tex4ht:label?: x41-4400625 -->
</div><hr class="endfigure" />
<!--l. 1255--><p class="indent" >
</p>
<!--l. 1257--><div class="crosslinks"><p class="noindent">[<a
href="dbus-javase13.html" >prev</a>] [<a
href="dbus-javase13.html#taildbus-javase13.html" >prev-tail</a>] [<a
href="dbus-javase14.html" >front</a>] [<a
href="dbus-java.html# " >up</a>] </p></div>
<!--l. 1257--><p class="indent" > <a
id="taildbus-javase14.html"></a> </p>
</body></html>
