content: /*
   * 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.calcite.avatica.metrics.dropwizard;
  
  import org.apache.calcite.avatica.metrics.MetricsSystemConfiguration;
  import org.apache.calcite.avatica.metrics.MetricsSystemFactory;
  
  /**
   * A {@link MetricsSystemFactory} for {@link DropwizardMetricsSystem}.
   */
  public class DropwizardMetricsSystemFactory implements MetricsSystemFactory {
  
    @Override public DropwizardMetricsSystem create(MetricsSystemConfiguration<?> config) {
      // Verify we got configuration this factory can use
      if (config instanceof DropwizardMetricsSystemConfiguration) {
        DropwizardMetricsSystemConfiguration typedConfig =
            (DropwizardMetricsSystemConfiguration) config;
  
        return new DropwizardMetricsSystem(typedConfig.get());
      }
  
      throw new IllegalStateException("Expected instance of "
          + DropwizardMetricsSystemConfiguration.class.getName() + " but got "
          + (null == config ? "null" : config.getClass().getName()));
    }
  }
  
  // End DropwizardMetricsSystemFactory.java
  