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Installing the Java D-Bus bindings

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This is to help those who want to compile a Java program using Apertium's D-Bus services.

First you will need to download the D-Bus bindings for Java; the latest version can be found on the D-Bus project site. The bindings use libmatthew by the same author; the latest version can be downloaded from his site.

  1. Compile and install libmatthew.
  2. Compile and install the Java D-Bus bindings (ignore errors about invalid JAR paths - if it compiles and installs, everything will work.)

The Java binding build process should install the following binaries on your machine:

  1. CreateInterface
  2. DBusCall
  3. DBusDaemon
  4. DBusViewer
  5. ListDBus

You can make sure that everything works by executing:

DBusCall org.apertium.info / org.apertium.Info modes

If you get a message such as

ParseException: Bus address is blank

it means that the environment variable $DBUS_SESSION_BUS_ADDRESS isn't set. You can get around it by using dbus-launch --exit-with-session to execute the program:

dbus-launch --exit-with-session DBusCall org.apertium.info / org.apertium.Info modes.

You should get output that looks something like this:

[[en-af, af-en]]

Now that the installation works, you might want to look at our guide to compiling Java D-Bus programs, using Apertium as an example.

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