src/main/java/org/apache/hadoop/hdfs/server/namenode/AbstractQueryEngine.java
@Override // QueryEngine
  public Map<String, Long> parentDirHistogram(
      Stream<INode> inodes, Integer parentDirDepth, String sum, String find) {
    return new HistogramInvoker(this, "parentDir", sum, find, inodes).invoke().getHistogram();
  }
/**
   * Creates a histogram representation of INodes where the X-axis represents parent directories.
   *
   * @param inodes the filtered inodes to operate with
   * @param parentDirDepth the depth of the parents to group on
   * @param sum the Y-axis type
   * @param find optional; a find operation to perform; overrides sum
   * @return a map representing bins as Strings and the sum/finds as Longs
   */
Creates a histogram representation of INodes where the X-axis represents parent directories.
Creates a histogram representation of INodes where the X - axis represents parent directories .
@Override 
  public Map<String, Long> parentDirHistogram(
      Stream<INode> inodes, Integer parentDirDepth, String sum, String find) {
    return new HistogramInvoker(this, "parentDir", sum, find, inodes).invoke().getHistogram();
  }
@ Override public Map < String , Long > parentDirHistogram ( Stream < INode > inodes , Integer parentDirDepth , String sum , String find ) { return new HistogramInvoker ( this , "parentDir" , sum , find , inodes ) . invoke ( ) . getHistogram ( ) ; }
Creates a histogram representation of INodes where the X-axis represents parent directories.
Creates a histogram representation of INodes where the X - axis represents parent directories .
// QueryEngine