added a README file within the multi-module maven proj

quartz-manager-parent/README.md

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+# QUARTZ-MANAGER REST API
+
+This is a multi-module maven project.
+
+## PROJECT STRUCTURE
+* `quartz-parent/quartz-manager-starter-api` is the core library must be imported to get the Quartz-Manager API and to interact with the [Quartz Scheduler](http://www.quartz-scheduler.org/) via REST.
+* `quartz-parent/quartz-manager-starter-security` is a library that can be imported to get an out-of-the-box security layer over the quartz-manager API.
+* `quartz-parent/quartz-manager-starter-persistence` is a library that can be imported to persist the Quartz Scheduler managed by Quartz Manager, in a Postgresql database.
+* `quartz-parent/quartz-manager-starter-ui`  is a maven module with all the logic to build and package the angular frontend in a webjar.
+* `quartz-parent/quartz-manager-web-showcase` is nothing but a simple backend which imports the above libraries, helpful to develop with a frontend started locally with the webpack dev server.
+* `quartz-frontend` is the angular single-page-app that interacts with the Quartz Manager API.
+
+## PROJECT DETAILS
+**[requirements]** Make sure you have installed
+* [JDK](https://java.com/download/) 9 or greater
+* [Maven](https://maven.apache.org/) 3.6 or greater
+* [npm](https://www.npmjs.com/get-npm) 16 or greater , [node](https://nodejs.org) 8 or greater
+* [angular-cli](https://cli.angular.io/)
+
+To build&run Quartz Manager locally in your machine:
+
+```
+#CLONE REPOSITORY
+git clone https://github.com/fabioformosa/quartz-manager.git
+
+# START QUARTZ-MANAGER-WEB
+cd quartz-manager/quartz-parent
+mvn install
+cd quartz-manager/quartz-parent/quartz-manager-web-showcase
+mvn spring-boot:run
+
+# START QUARTZ-MANAGER-FRONTEND
+cd quartz-manager/quartz-manager-frontend
+npm install
+npm start
+
+```
+
+1. Open browser at [http://localhost:4200](http://localhost:4200)
+1. If you've imported `quartz-manager-security-starter` log in with **default credentials**: `admin/admin`
+
+If you are not confident with maven CLI, you can start it by your IDE. For more details [spring boot ref.](http://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-running-your-application.html)
+
+
+## HOW TO RUN YOUR SCHEDULED JOB
+By default, `quartz-manager-web-showcase` executes the dummy job that logs "hello world!".
+Replace the dummy job (class: `it.fabioformosa.quartzmanager.jobs.SampleJob`) with yours. Follow these steps:
+
+1. Extend the super class `it.fabioformosa.quartzmanager.jobs.AbstractLoggingJob`
+1. set property `quartz-manager.jobClassPackages` with the list of the java packages (comma separated) containing the job class eligible for Quartz Manager
+
+## HOW TO CHANGE SETTINGS
+* Num of Threads: `/quartz-manager-parent/quartz-manager-web/src/main/resources/managed-quartz.properties`
+* Credentials: To change admin's password, set app property (or ENV var) `quartz-manager.security.accounts.in-memory.users[0].passord`
+* quartz-manager backend context path (default `/quartz-manager`) and port (default `8080`): `/quartz-manager/src/main/resources/application.properties`
+
+## Tech Overview
+
+**Backend Stack** Java 9, Spring Boot 2.5.6 (Spring MVC 5.3.12, Spring Security 5.5.3), Quartz Scheduler 2.3.2
+
+**Frontend** Angular 9.1.4, Web-Socket (stompjs 2.3.3)
+
+**Style** Angular Material 9, FontAwesome 5
+
+Starting from Quartz Manager v2.x.x, the new structure of project is:
+* Multi-module maven project: REST API backend
+* Angular 9: Single Page Application frontend
+
+(The first version of quartz manager was a monolithic backend that provided also frontend developed with angularjs 1.6.x. You can find it at the branch 1.x.x)
+
+## Contributes
+
+Every contribution is welcome. Open a github's issue, let's discuss about the new features and how to implement them.