Package org.cishell.testing.convertertester.core.tester.graphcomparison

Source Code of org.cishell.testing.convertertester.core.tester.graphcomparison.TableUtil

package org.cishell.testing.convertertester.core.tester.graphcomparison;

import java.util.Iterator;

import prefuse.data.Table;
import prefuse.data.Tuple;
import prefuse.data.expression.parser.ExpressionParser;
import prefuse.data.util.Sort;

public class TableUtil {
 
  public static String[] getColumnNames(Table t) {
    String[] columnNames = new String[t.getColumnCount()];
    for (int ii = 0; ii < t.getColumnCount(); ii++) {
      columnNames[ii] = t.getColumnName(ii);
    }
    return columnNames;
  }
   
  public static Table copyTable(Table t) {
    Table tCopy = new Table();
    tCopy.addColumns(t.getSchema());
   
    for (Iterator ii = t.tuples(); ii.hasNext();) {
      Tuple tuple = (Tuple) ii.next();
      tCopy.addTuple(tuple);
    }
    return tCopy;
  }
 
  public static void printTable(Table t) {
    Iterator ii = t.tuples();
    while (ii.hasNext()) {
      System.out.println((Tuple) ii.next());
    }
  }
 
  public static Table getSorted(Table t) {
    return getSortedByColumns(t, getColumnNames(t));
  }
 
  public static Table getSortedByColumns(Table t, String[] columnNames) {
    for (int ii = 0; ii < columnNames.length; ii++) {
      String columnName = columnNames[ii];
      if (t.getColumn(columnName) == null) {
        System.out.println("WTF, cannot find column " + columnName);
      }
    }
    Sort tSort = new Sort(columnNames);
    Table sortedTable = t.select(ExpressionParser.predicate("TRUE"),
        tSort);
    return sortedTable;
  }
 
 
}
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