/*
    * #%L
    * wcm.io
    * %%
    * Copyright (C) 2014 wcm.io
    * %%
    * Licensed 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.
   * #L%
   */
  package io.wcm.caravan.commons.metrics.impl;
  
  import java.util.Hashtable;
  
  import org.osgi.framework.BundleContext;
  import org.osgi.framework.ServiceRegistration;
  
  import com.codahale.metrics.MetricRegistry;
  import com.codahale.metrics.health.HealthCheckRegistry;
  
  /**
   * Registers metric and health check registry.
   */
  public class BundleActivator implements org.osgi.framework.BundleActivator {
  
    private ServiceRegistration<MetricRegistry> metricRegistry;
    private ServiceRegistration<HealthCheckRegistry> healthRegistry;
  
    @Override
    public void start(final BundleContext context) throws Exception {
      metricRegistry = context.registerService(MetricRegistry.class, new MetricRegistry(), new Hashtable<String, Object>());
      healthRegistry = context.registerService(HealthCheckRegistry.class, new HealthCheckRegistry(), new Hashtable<String, Object>());
    }
  
    @Override
    public void stop(final BundleContext context) throws Exception {
      context.ungetService(metricRegistry.getReference());
      context.ungetService(healthRegistry.getReference());
    }
  
  }