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 com.alibaba.metrics.reporter;
  
  import com.alibaba.metrics.MetricName;
  
  import java.io.File;
  
  /**
   * This implementation of the {@link CsvFileProvider} will always return the same name
   * for the same metric. This means the CSV file will grow indefinitely.
   */
  public class FixedNameCsvFileProvider implements CsvFileProvider {
      @Override
      public File getFile(File directory, MetricName metricName) {
          return new File(directory, sanitize(metricName) + ".csv");
      }
  
      private String sanitize(MetricName metricName) {
          //Forward slash character is definitely illegal in both Windows and Linux
          //https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
          final String sanitizedName = metricName.getKey().replaceFirst("^/","").replaceAll("/",".");
          return sanitizedName;
      }
  }
  