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/**
 * Copyright 2016 The OpenZipkin Authors
 *
 * 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.
 */
package zipkin.reporter;

import java.util.List;

public enum Encoding {
  JSON {
    /** Encoding overhead is brackets and a comma for each span over 1 */
    @Override public int listSizeInBytes(List values) {
      int sizeInBytes = 2; // brackets
      for (int i = 0, length = values.size(); i < length; ) {
        sizeInBytes += values.get(i++).length;
        if (i < length) sizeInBytes++;
      }
      return sizeInBytes;
    }
  },
  THRIFT {
    /** Encoding overhead is thrift type plus 32-bit length prefix */
    @Override public int listSizeInBytes(List values) {
      int sizeInBytes = 5;
      for (byte[] value : values) sizeInBytes += value.length;
      return sizeInBytes;
    }
  };

  public abstract int listSizeInBytes(List values);
}