作为API运行Neo4j遍历JAR

Question

I've coded a traversal in Java (using Eclipse IDE). The main() program accepts input arguments (classic args[]), it calls the traversal using one of them as the start node, the other args are used to perform some data filtering on traversal results. Thus, I can run this JAR on a command line with corresponding arguments.

Question: how can quickly test this JAR as a RESTful API? eg sending HTTP GET with its parameters as input arguments ? what is best practice ?

Thank you

Answer 1

The best way is to create an unmanaged extension which will accept query parameters that will call your traversal

Example from the doc :

@Path( "/helloworld" )
public class HelloWorldResource
{
    private final GraphDatabaseService database;

    public HelloWorldResource( @Context GraphDatabaseService database )
    {
        this.database = database;
    }

    @GET
    @Produces( MediaType.TEXT_PLAIN )
    @Path( "/{nodeId}" )
    public Response hello( @PathParam( "nodeId" ) long nodeId )
    {
        // Do stuff with the database
        return Response.status( Status.OK ).entity(
                ("Hello World, nodeId=" + nodeId).getBytes( Charset.forName("UTF-8") ) ).build();
    }
}

You can find a test example here : https://github.com/neo4j/neo4j/blob/2.2.1/community/server-examples/src/test/java/org/neo4j/examples/server/unmanaged/UnmanagedExtensionsDocIT.java