Added web deployment description, context configuration, service, and song endpoint implementations.

src/main/groovy/com/jdbernard/nlsongs/rest/PingResource.groovy

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+package com.jdbernard.nlsongs.rest
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+
+@Path("v1/ping")
+public class PingResource {
+
+    @GET
+    @Produces("text/plain")
+    public String ping() { return "pong" } }

src/main/groovy/com/jdbernard/nlsongs/rest/ServicesResource.java

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+package com.jdbernard.nlsongs.rest;
+
+import java.util.Date;
+import java.util.List;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+
+import com.jdbernard.nlsongs.servlet.NLSongsContext;
+import com.jdbernard.nlsongs.model.Service;
+
+@Path("v1/services")
+@Produces({MediaType.APPLICATION_JSON})
+@Consumes({MediaType.APPLICATION_JSON})
+public class ServicesResource {
+
+    @GET
+    public List<Service> getServices() {
+        return NLSongsContext.songsDB.findAllServices(); }
+
+    @POST
+    public Service postService(Service service) {
+        return NLSongsContext.songsDB.create(service); }
+
+    @GET @Path("/{serviceId}")
+    public Service getService(@PathParam("serviceId") int serviceId) {
+        return NLSongsContext.songsDB.findService(serviceId); }
+
+    @PUT @Path("/{serviceId}")
+    public Service putService(@PathParam("serviceId") int serviceId,
+    Service service) {
+        service.setId(serviceId);
+        NLSongsContext.songsDB.update(service);
+        return service; }
+
+    @GET @Path("/withSong/{songId}")
+    public List<Service> getServicesForSong(@PathParam("songId") int songId) {
+        return NLSongsContext.songsDB.findServicesForSongId(songId); }
+
+    @GET @Path("/byDate/after/{date}")
+    public List<Service> getServicesAfter(@PathParam("date") Date date) {
+        return NLSongsContext.songsDB.findServicesAfter(date); }
+
+    @GET @Path("/byDate/before/{date}")
+    public List<Service> getServicesBefore(@PathParam("date") Date date) {
+        return NLSongsContext.songsDB.findServicesBefore(date); }
+
+    @GET @Path("/byDate/between/{b}/{e}")
+    public List<Service> getServicesBetween
+    (@PathParam("b") Date b, @PathParam("e") Date e) {
+        return NLSongsContext.songsDB.findServicesBetween(b, e); }
+}

src/main/groovy/com/jdbernard/nlsongs/rest/SongsResource.java

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+package com.jdbernard.nlsongs.rest;
+
+import java.util.List;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+
+import com.jdbernard.nlsongs.servlet.NLSongsContext;
+import com.jdbernard.nlsongs.model.Song;
+
+@Path("v1/songs")
+@Produces({MediaType.APPLICATION_JSON})
+@Consumes({MediaType.APPLICATION_JSON})
+public class SongsResource {
+
+    @GET
+    public List<Song> getSongs() {
+        return NLSongsContext.songsDB.findAllSongs(); }
+
+    @POST
+    public Song postSong(Song song) {
+        return NLSongsContext.songsDB.create(song); }
+
+    @GET @Path("/{songId}")
+    public Song getSong(@PathParam("songId") int songId) {
+        return NLSongsContext.songsDB.findSong(songId); }
+
+    @PUT @Path("/{songId}")
+    public Song putSong(@PathParam("songId") int songId, Song song) {
+        song.setId(songId);
+        NLSongsContext.songsDB.update(song);
+        return song; }
+
+    @GET @Path("/forService/{serviceId}")
+    public List<Song> getSongsForService(@PathParam("serviceId") int serviceId) {
+        return NLSongsContext.songsDB.findSongsForServiceId(serviceId); }
+
+    @GET @Path("/byArtist/{artist}")
+    public List<Song> getSongsForArtist(@PathParam("artist") String artist) {
+        return NLSongsContext.songsDB.findSongsByArtist(artist); }
+}

src/main/groovy/com/jdbernard/nlsongs/servlet/NLSongsContext.groovy

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+package com.jdbernard.nlsongs.servlet
+
+import com.jdbernard.nlsongs.db.NLSongsDB
+
+public class NLSongsContext {
+
+    public static NLSongsDB songsDB }