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# RMIModelServer

The RMIModelServer is used to remotely allocate a series of [_HardwareEmulators_](https://git.rwth-aachen.de/monticore/EmbeddedMontiArc/simulators/hardware_emulator), which can load different autopilots generated with [_EMAM2CPP_](https://git.rwth-aachen.de/monticore/EmbeddedMontiArc/generators/EMAM2Cpp).

## Requirements

In order the project to be built locally, the following software is required:

    Apache Maven
    Java Development Kit, Version 8+
    (optional) Git

To clone this github repository, one can use the following commands

    cd MontiSim
    git clone https://github.com/MontiSim/RMIModelServer.git
      
__NOTE:__ _MontiSim_ is the directory, in which MontiSim-belonging projects should be clonned. It has to be manually created.

## Compiling 

To just compile the `jar`, use

    mvn clean install -s settings.xml
    
To compile and copy the server to the local `install` folder, use the `scripts/compile_install` scripts.

__NOTE:__ New versions of the _HardwareEmulator_ must be copied into the `install` folder. This folder is used in a maven test to verify RMIModelServer/HardwareEmulator integration.

## Running the RMI server

The `install` folder contains a sample setup for running the RMIModelServer. 
The RMIModelServer jar must be in the same directory as the [HardwareEmulator](https://git.rwth-aachen.de/monticore/EmbeddedMontiArc/simulators/hardware_emulator) library it will use (_HardwareEmulator.lib_ or _HardwareEmulator.so_ for Windows or Linux).
The `run` script starts an instance of the RMIModelServer. It uses the `config` script to provide a way of changing the port or the autopilot folder used. The port defaults to 10101, and can be changed to start multiple RMIModelServers.

The autopilot folder is a folder path (absolute or relative to the RMIModelServer) in which the RMI server will look for autopilot programs.
These programs are the EmbeddedMontiArc models compiled with EMAM2CPP (or a project using EMAM2CPP such as [EMAM-showcase](https://git.rwth-aachen.de/monticore/EmbeddedMontiArc/simulators/EMAM-showcase) or [EMAStudio](https://git.rwth-aachen.de/monticore/EmbeddedMontiArc/utilities/EMAStudioBuilder)).
The `autopilots` folder in the `install` folder contains the sample autopilot from `EMAM-Showcase`.

## Docker

Here is another possibility to run the RMI server without compiling the AutopilotAdapter.dll yourself.

First we build the docker image with 
```
$ ./docker/build.sh
```
This script only does 2 things:

1. Copy the latest rmi-model-server build into ./docker/ in order to prepare the build.
2. Then use ./docker/Dockerfile to build the rmi-model-server docker image.

After the docker image is built. Run following command to start the RMI server with port 10101:

```
$ docker run --name=rmi-server -p 10101:10101 --rm rmi-server
```

Or, for example with port 5000:
```
$ docker run --name=rmi-server -p 5000:10101 --rm rmi-server
```