### **Setup**

- [Get permissions](#get-permissions)
- [Local setup](#local-setup)
  - [Get the codes](#get-the-codes)
  - [Prepare software & license](#prepare-software-license)
- [Euler setup](#euler-setup)

#### Get permissions

Before setting up, you need permissions to access the codes and the input database. Email the following people to ask for the corresponding permissions.

```Note:: |:warning:| Currently, the codes are only accessible with an ETH account.
```

- Xuejiao Han (xuhan@eeh.ee.ethz.ch): 
  - permission for the **DistIv** repository 
  - access to the **PSL server** for the database (server name: itet-psl-s02)

- Jared Garrison (garrison@fen.ethz.ch): 
  - permissions for the **eMark** repository
  - permissions for the **Shared** repository,
  - username and password for the **database** 
- Blazhe Gjorgiev (gblazhe@ethz.ch): 
  - permission for the **Cascades** repository
  - permission for the **Run_Nexuse** repository
- Elena Raycheva (elena.raycheva@esc.ethz.ch):
  - permission for the **CentIv** repository
- Florian Landis  (landisf@ethz.ch):
  - permission for the **GemEl** repository
- Xuqian Yan (xuqian.yan@esc.ethz.ch):
  - permission for the overarching **Nexus-e** repository (<https://gitlab.ethz.ch/xyan/nexus-e.git>)

#### Local setup

Most the instructions below have been tested both on **Windows** and on **Mac**.

#####  1. Get the codes

The instructions here use **command lines**. If you have a GUI tool for git, you could use the corresponding operations in the GUI tool instead. An example using a GUI tool "GitAhead" can be found in section [Nexus-e repository instructions](nexuse_repo_instruction.html).

- Create a folder where you want to put the codes

- cd to that folder

- Clone the overarching repository with this command:

  ```git clone --recursive https://gitlab.ethz.ch/xyan/nexus-e.git```

  You will be asked for your username and password for the repository and its submodules. Input your ETH username and password.

In the end, the folder will look like this:

![](images/nexus-e-folder.png)


##### 2. Connect with the input database


##### 3. Prepare software & license

- Matlab (2018a or higher)

  - Set up database connector

    - Download the **MySQL connector** from [here](https://dev.mysql.com/downloads/connector/j/).  
    Or, if you have access to the Nexus-e polybox, use the `mysql-connector-java-8.0.18.zip` provided in the folder `02_Model/02_02_Model_Setup_Instruction`(**Unzip** the file before the next step).

    - Copy the MySQL connector folder (e.g. mysql-connector-java-8.0.18) into a folder at your preference.  
    We recommend to put it into the **Matlab preferences folder**, which you can find by typing in Matlab Command Window ```prefdir```.

    - Create a **javaclasspath.txt** file in the **Matlab preferences folder**.

    - In the **javaclasspath.txt** file, put the path to the connector .jar file.  
    E.g., On Blazhe's Windows computer the path is `C:\Users\gblazhe\AppData\Roaming\MathWorks\MATLAB\R2018a\mysql-connector-java-8.0.18\mysql-connector-java-8.0.18.jar`.

    - Reload Matlab
    
    - Test whether a database connector is set up successfully. Write the following commands in Matlab (substitue `YOUR_USERNAME` and `YOUR_PASSWORD` with your credentials for the database). If the second command returns `1`, it means success.  
    ```
    conn = database("sys", YOUR_USERNAME, YOUR_PASSWORD, 'Vendor', 'MySQL', 'Server', "itet-psl-s02");
    isopen(conn)
    ```
      
    

- 


##### 4. Run Nexus-e

#### Euler setup
1. Join the usergroup
1. Get the codes
1. Prepare software & license
1. Connect with the input database
1. Run Nexus-e