Added the capability to get the profile schema in profile collection

src/main/java/org/gcube/gcat/rest/Profile.java

@@ -1,5 +1,6 @@
 package org.gcube.gcat.rest;
 
+import javax.ws.rs.BadRequestException;
 import javax.ws.rs.Consumes;
 import javax.ws.rs.DELETE;
 import javax.ws.rs.DefaultValue;
@@ -18,6 +19,7 @@ import javax.ws.rs.core.Response.ResponseBuilder;
 import javax.ws.rs.core.Response.Status;
 import javax.ws.rs.core.UriInfo;
 
+import org.gcube.datacatalogue.metadatadiscovery.DataCalogueMetadataFormatReader;
 import org.gcube.gcat.ResourceInitializer;
 import org.gcube.gcat.profile.ISProfile;
 
@@ -31,6 +33,7 @@ public class Profile extends BaseREST implements org.gcube.gcat.api.interfaces.P
 	
 	public static final String PROFILE_NAME_PARAMETER = "PROFILE_NAME";
 	
+	
 	@Context
 	private UriInfo uriInfo;
 	
@@ -58,6 +61,11 @@ public class Profile extends BaseREST implements org.gcube.gcat.api.interfaces.P
 			@DefaultValue(MediaType.APPLICATION_XML) @HeaderParam("Accept") String accept) {
 		setCalledMethod("GET /" + PROFILES + "/{" + PROFILE_NAME_PARAMETER + "}");
 		try {
+			// If the name is SCHEMA 
+			if(name.compareToIgnoreCase(SCHEMA)==0) {
+				return DataCalogueMetadataFormatReader.getProfileSchemaString();
+			}
+			
 			ISProfile isProfile = new ISProfile();
 			boolean xml = false;
 			if(accept.startsWith(MediaType.APPLICATION_XML)) {
@@ -78,6 +86,9 @@ public class Profile extends BaseREST implements org.gcube.gcat.api.interfaces.P
 	public Response createOrUpdate(@PathParam(PROFILE_NAME_PARAMETER) String name, String xml) {
 		setCalledMethod("PUT /" + PROFILES + "/{" + PROFILE_NAME_PARAMETER + "}");
 		try {
+			if(name.compareToIgnoreCase(SCHEMA)==0) {
+				throw new BadRequestException("You cannot manage the profile schema");
+			}
 			ISProfile isProfile = new ISProfile();
 			boolean created = isProfile.createOrUpdate(name, xml);
 			ResponseBuilder responseBuilder = null;
@@ -101,6 +112,9 @@ public class Profile extends BaseREST implements org.gcube.gcat.api.interfaces.P
 	public Response delete(@PathParam(PROFILE_NAME_PARAMETER) String name) {
 		setCalledMethod("DELETE /" + PROFILES + "/{" + PROFILE_NAME_PARAMETER + "}");
 		try {
+			if(name.compareToIgnoreCase(SCHEMA)==0) {
+				throw new BadRequestException("You cannot manage the profile schema");
+			}
 			ISProfile isProfile = new ISProfile();
 			isProfile.delete(name);
 			return Response.status(Status.NO_CONTENT).build();