Migrate to JAX-RS from raw servlet

[ebyhr]

No description provided.

[ebyhr]

@wyukawa Could you enable Travis CI integration in this repository when you have time?

[wyukawa]

I'm not familiar with JSON library but is genson necessary?

[ebyhr]

This library is needed when we set json key name explicitly.
eg @JsonProperty("formattedQuery")

[wyukawa]

enabled Travis CI integration in this repository like https://github.com/yanagishima/yanagishima/pull/106/checks?check_run_id=253262182

[wyukawa]

LGTM

[wyukawa]

@ebyhr
I merged and deployed but it didn't work.
http://localhost:8080 is 404

It works after I commented out the followng line

servletContextHandler.addServlet(new ServletHolder(new ServletContainer(new YanagishimaResourceConfig(config))), "/*");

So I reverted in 5e2f0c2

Could you please check?

[ebyhr]

Found the root cause. The default servlet path was overwritten with the above code. Once we swap the order as below, the endpoint will return the expected result.

        servletContextHandler.addServlet(new ServletHolder(new ServletContainer(new YanagishimaResourceConfig(config))), "/*");
        servletContextHandler.addServlet(DefaultServlet.class, "/");