The DAPNET CORE offers the main functionality of the Decentralized Amateur Paging Network. It builds up a cluster together with other DAPNET Core instances over the HAMNET and controls connected paging transmitter. All functions can be accessed via the REST API.

Using the packed release version no installation is required. All external libraries are included. Just make sure a JAVA 8+ runtime environment is available.

If you would like to join an existing cluster contact an admin. He will register your DAPNET Core instance and inform you about the configuration. If you want to create a new cluster feel free to set your own configuration. In each case set the following parameters in the local/config/ClusterConfig.xml and local/config/Settings.json :

• Node name (name of your DAPNET Core instance) and cluster name (name of the DAPNET Cluster) at Settings.json

  ...
  "clusterSettings": {
      ...
      "nodeName": "THIS_IS_YOUR_CALLSIGN_AS_ITS_IN_SETUP_IN_THE_CLUSTER",
      "channelName": "DAPNET"
  },
  ...
  
  

• Node authentication key (needed for authentication if you want to rejoin your cluster later) of form XXXX-XXXX-XXXX-XXXX-XXXX (X is alphanumeric) at ClusterConfig.xml
  <AUTH auth_value="key"/>
• Initial hosts (if you want to join an existing cluster at least one node have to be known... ) at ClusterConfig.xml
  <TCPPING initial_hosts="HostA[7800],HostB[7800]\>

The DAPNET Core uses Log4j2 for logging, which can be configured in the config/LogSettings.xml. The default setting will inform you about nearly all events in the console and additionally will store all logs in a file.

In the Setting.json file various parameters can be set. The default settings should fit for most use cases. However, important could be the "port": 8080" line to configure the port of the REST API.

1. Make sure you performed the basic configuration as described above.
2. Start the application with java -Dlog4j.configurationFile=../local/config/LogSettings_REST.xml -jar dapnet-core-x.x.x.jar
3. In case you connect to an existing cluster all current data will be automatically downloaded. If you create a new cluster and no date/state.json is found the parameters of your node will be set to default values. Additionally, a default user admin with password admin will be automatically created, which you can used to connect with the REST interface.
4. After a successful startup you can start to play with the REST API (API Description)
5. In case you created a new cluster please set all parameters of your node (e.g. longitude and latitude), set the admin user's mail address and especially set a new password.

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DAPNET CORE PROJECT | Copyright (C) 2017

Institut für Hochfrequenztechnik | RWTH AACHEN UNIVERSITY

Melatener Str. 25 | 52074 Aachen

Daniel Sialkowski | daniel.sialkowski@rwth-aachen.de

Ralf Wilke | wilke@ihf.rwth-aachen.de

Philipp Thiel

This software may be distributed free of charge. It may be only used for non-commercial application. It's use is limited to applications releated directly the amateur radio. The software may be changed and redistributed, but in any case, this licences remarks have to be maintained in the disribution. The original copyright holders have to be named.

For licensing of the used third party software, please refer to the Licences.txt file.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.