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https://github.com/jexp/sdn-boot-example

SDN+Spring Boot Movies Example for SDN.next()
https://github.com/jexp/sdn-boot-example

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SDN+Spring Boot Movies Example for SDN.next()

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README

          

== Spring Data Neo4j with Spring Boot and Spring Data Rest - Movies Example Application

Spring Data Neo4j was the first Spring Data project, started by the CEOs Rod Johnson and Emil Eifrem.
It enables convenient integration of Neo4j in your Spring-based application.
It provides object-graph mapping functionality and other features common to the Spring Data projects.

To use Neo4j with Spring Data Neo4j, you just add the dependency for http://projects.spring.io/spring-boot/[Spring-Boot] and http://projects.spring.io/spring-data-neo4j[Spring-Data-Neo4j] to your build setup.

[source,xml]
----
include::pom.xml[tags=dependencies]
----

After setting up a Java-based Spring-Boot configuration,

[source,java]
----
include::src/main/java/movies/spring/data/neo4j/MyNeo4jConfiguration.java[tags=config]
----

and annotating your `@Node-` and `@RelationshipEntity`, you can use the `Neo4jTemplate` to access Neo4j APIs and object graph mapping functionality.

[source,java]
----
include::src/main/java/movies/spring/data/neo4j/domain/Movie.java[tags=movie]
----

Additionally you can leverage the convenient Spring-Data repositories to get interface-based DAO implementations injected into your Spring Components.

[source,java]
----
include::src/main/java/movies/spring/data/neo4j/repositories/MovieRepository.java[tags=repository]
----

In our case we use the repository from a `MovieService` to compute the graph representation for the visualization.
The service is then injected into our main Boot application, which also doubles as `@RestMvcController` which exposes the `/graph` endpoint.

The other two endpoints for finding multiple movies by title and loading a single movie are provided out of the box by the http://projects.spring.io/spring-data-rest/[Spring-Data-Rest project] which exposes our `MovieRepository` as REST endpoints.
The rendering of the movie objects (and related entities) happens automatically out of the box via Jackson mapping.

See the {github}/examples/java/spring-data-neo4j[GitHub repository] for the source code.

[NOTE]
The current version of Spring Data Neo4j works best with an embedded Neo4j database.
To achieve highest-performance Neo4j-Server integration move your SDN persistence layer into a Server Extension.
// Work on improving the Spring Data Neo4j performance with Neo4j server is underway.

=== The Stack

These are the components of our Web Application:

* Application Type: Spring-Boot Java Web Application (Jetty)
* Web framework: Spring-Boot enabled Spring-WebMVC, Spring-Data-Rest
* Persistence Access: Spring-Data-Neo4j
* Database: Neo4j-Server
* Frontend: jquery, bootstrap, http://d3js.org/[d3.js]

=== Endpoints:

Get Movie

----
// JSON object for single movie with cast
curl http://localhost:8080/movies/search/findByTitle?0=The%20Matrix

// list of JSON objects for movie search results
curl http://localhost:8080/movies/search/findByTitleContaining?0=matrix

// JSON object for whole graph viz (nodes, links - arrays)
curl http://localhost:8080/graph
----