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package io.wcm.qa.glnm.differences.generic;

import java.util.ArrayList;
import java.util.Collection;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import io.wcm.qa.glnm.differences.base.Difference;
import io.wcm.qa.glnm.differences.util.DifferenceUtil;

/**
 * Differences are sorted and a cut off value determines which part goes into the folder name and which part into the
 * filename.
 *
 * @since 1.0.0
 */
public class DifferentiatedDifferences extends SortedDifferences {

  private static final Logger LOG = LoggerFactory.getLogger(DifferentiatedDifferences.class);

  private int cutoff = 2;

  /** {@inheritDoc} */
  @Override
  public String asFilePath() {
    Collection differences = getDifferences();
    int differencesTotalCount = differences.size();
    int pivotIndex = differencesTotalCount - getCutoff();
    if (pivotIndex < 0 || pivotIndex > differencesTotalCount) {
      LOG.debug("could not differentiate because of illegal cutoff: " + this);
      return super.asFilePath();
    }

    ArrayList differencesAsList = new ArrayList();
    differencesAsList.addAll(differences);

    String folderPart = DifferenceUtil.joinTagsWith(differencesAsList.subList(0, pivotIndex), "/");
    String filePart = DifferenceUtil.joinTagsWith(differencesAsList.subList(pivotIndex, differencesTotalCount), "/");

    return folderPart + "/" + filePart;
  }

  /**
   * 

Getter for the field cutoff.

* * @return a int. * @since 2.0.0 */ public int getCutoff() { return cutoff; } /** *

Setter for the field cutoff.

* * @param cutoff a int. * @since 2.0.0 */ public void setCutoff(int cutoff) { this.cutoff = cutoff; } /** {@inheritDoc} */ @Override public String toString() { return super.toString() + " cutoff: " + getCutoff(); } }




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