How to integrate ONE with Eclipse?

Hai all,

After being familiar with the ONE simulator you may wish to start coding in it. So editing programs in notepad cannot be easy. You may want to integrate ONE with eclipse and then execute the programs. This article gives steps to integrate ONE with eclipse.

The steps are given below with some screenshots:

1.      Open eclipse and go to File -> New -> Java Project

2.      Give the project name whatever you like. I prefer it to be ONE as that is the name of the simulator.

3.      Now you will see a folder named ONE on the left side in package explorer.

4.      Open this folder and there will another folder named ‘src’. Right click on src and click on ‘Import’ option. U will be directed to a box as shown in the picture below.

5.      Click on the first option ‘File System’ and click next. You will be redirected to another box as shown below.

6.      In the text field ‘From directory’, browse the path where your ONE folder is stored.

7.      Click on the checkbox that appears in the left side. This will select all the folders and files in the one_1.4.1.

8.      Now click Finish button at the bottom.

9.      The src folder will contain all the one_1.4.1 contents. But there will be a red cross mark on the src folder. This is because eclipse does not get path to some libraries used in the ONE simulator. We have to manually add this.

10.  For this right click on the project folder. Go to Build Path -> Add External Archives.

11.  Go to one_1.4.1 -> lib and select both jar files in it.

12.  Now you will be able to see referenced libraries along with JRE system libraries.

You may still see cross mark over the src folder. To eliminate this, either delete the test folder in src or add junit.jar (to be downloaded from Internet) in the Referenced libraries.

In order to set the default path to the project folder (optional) do the following

1. Click Run -> Run Configurations 

2. Click the Arguments tab

3. Click 'Other' instead of 'Default' and set path to src by clicking on the workspace button. Now it must look like '${workspace_loc:Project_name/src}'

4. Click Apply 

Now run the DTNSim.java in the core folder. Your project will run with 'default_settings.txt' as the settings file.

Now to use cmd in eclipse:

1. In the Eclipse tool go to Run -> External Tools -> External Tools Configurations option.
2. Click New Launch Configuration option in Create, manage and run configuration screen
3. Provide configuration details of the Command Prompt in the Main tab

                   1. Name: <<Give any name to your configuration (Here it is Command_Prompt)
                   2. Location: <<Location of the CMD.exe in your Windows>>
                   3. Working Directory: <<Any directory where you want to point the Command prompt>>                                  (Make this location to the project folder, eg: C:\workspace_loc:Project_name/src)
                   4. Tick the check box Allocate console. This will ensure the eclipse console is being used as the command prompt for any input or output. (this is optional)
                   5. Click Run.

Hope the article helped you...