io.wcm.qa.galenium.differences.generic.DifferenceNameComparator Maven / Gradle / Ivy

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 * Copyright (C) 2017 wcm.io
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 *      http://www.apache.org/licenses/LICENSE-2.0
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package io.wcm.qa.galenium.differences.generic;

import java.util.Comparator;

import io.wcm.qa.galenium.differences.base.Difference;

/**
 * Sort differences by their name.
 */
public class DifferenceNameComparator implements Comparator {

  @Override
  public int compare(Difference arg0, Difference arg1) {

    if (arg0 == null && arg1 == null || arg0 == arg1) {
      return 0;
    }
    if (arg0 == null) {
      return -1;
    }
    if (arg1 == null) {
      return 1;
    }

    String name0 = arg0.getName();
    String name1 = arg1.getName();

    return name0.compareTo(name1);
  }

}