DL-Metadata_storage_explorer is tool for exploring the metadata produced by data analytics methods and stored in the Data Lake

Before you can build this project, you must install and configure the following dependencies on your machine:

1. [Node.js][]: We use Node to run a development web server and build the project. Depending on your system, you can install Node either from source or as a pre-packaged bundle.
2. [Yarn][]: We use Yarn to manage Node dependencies. Depending on your system, you can install Yarn either from source or as a pre-packaged bundle.

After installing Node, you should be able to run the following command to install development tools. You will only need to run this command when dependencies change in package.json.

yarn install

We use [Gulp][] as our build system. Install the Gulp command-line tool globally with:

yarn global add gulp-cli

Run the following commands in two separate terminals to create a blissful development experience where your browser auto-refreshes when files change on your hard drive.

./mvnw
gulp

[Bower][] is used to manage CSS and JavaScript dependencies used in this application. You can upgrade dependencies by specifying a newer version in bower.json. You can also run bower update and bower install to manage dependencies. Add the -h flag on any command to see how you can use it. For example, bower update -h.

To optimize the test application for production, run:

./mvnw -Pprod clean package

This will concatenate and minify the client CSS and JavaScript files. It will also modify index.html so it references these new files. To ensure everything worked, run:

java -jar target/*.war

Then navigate to http://localhost:8080 in your browser.

To launch your application's tests, run:

./mvnw clean test

Unit tests are run by [Karma][] and written with [Jasmine][]. They're located in src/test/javascript/ and can be run with:

gulp test

UI end-to-end tests are powered by [Protractor][], which is built on top of WebDriverJS. They're located in src/test/javascript/e2e and can be run by starting Spring Boot in one terminal (./mvnw spring-boot:run) and running the tests (gulp itest) in a second one.

Performance tests are run by [Gatling][] and written in Scala. They're located in src/test/gatling and can be run with:

./mvnw gatling:execute

For more information, refer to the [Running tests page][].

You can use Docker to improve your development experience. A number of docker-compose configuration are available in the src/main/docker folder to launch required third party services.

For example, to start a mysql database in a docker container, run:

docker-compose -f src/main/docker/mysql.yml up -d

To stop it and remove the container, run:

docker-compose -f src/main/docker/mysql.yml down

You can also fully dockerize your application and all the services that it depends on. To achieve this, first build a docker image of your app by running:

./mvnw verify -Pprod dockerfile:build

Then run:

docker-compose -f src/main/docker/app.yml up -d

For more information refer to [Using Docker and Docker-Compose][]