| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.cassandra.diff.api.resources; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.Response; |
| |
| /** |
| * Health Check: not terribly useful yet. |
| * TODO: add DB connection check |
| */ |
| @Path("/__health") |
| public class HealthResource { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(HealthResource.class); |
| |
| private static Boolean overrideHealthStatus = null; |
| |
| public HealthResource() { |
| LOGGER.debug("New HealthResource created."); |
| } |
| |
| public static Boolean overrideHealthStatusTo(Boolean newStatus) { |
| Boolean oldStatus = overrideHealthStatus; |
| overrideHealthStatus = newStatus; |
| LOGGER.debug("Changed overrideHealthStatus from {} to {}", oldStatus, overrideHealthStatus); |
| return oldStatus; |
| } |
| |
| @GET |
| @Produces(MediaType.APPLICATION_JSON) |
| public Response health() { |
| if (isHealthy()) { |
| return Response |
| .ok("All is good.") |
| .build(); |
| } else { |
| return Response |
| .serverError() |
| .entity("Not Healthy.") |
| .build(); |
| } |
| } |
| |
| private boolean isHealthy() { |
| if (overrideHealthStatus == null) { |
| return true; |
| } |
| return overrideHealthStatus; |
| } |
| |
| } |