/**
 * 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.lens.server.healthcheck;

import org.apache.lens.server.LensServices;
import org.apache.lens.server.api.LensService;
import org.apache.lens.server.api.health.HealthStatus;

import com.codahale.metrics.health.HealthCheck;

public class LensServiceHealthCheck extends HealthCheck {

  private final LensService service;

  public LensServiceHealthCheck(String serviceName) {
    this.service = LensServices.get().getService(serviceName);
  }

  @Override
  protected Result check() throws Exception {
    HealthStatus status = service.getHealthStatus();

    if (status.isHealthy()) {
      return Result.healthy();
    } else {
      return Result.unhealthy(status.getDetails());
    }
  }
}