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Statistics.java

package gov.nasa.arc.ase.util;

import java.io.PrintStream;
import java.util.*;

public class Statistics {
  private Hashtable ht = new Hashtable();

  public Object get(Category c) {
    if(ht.containsKey(c))
      return ht.get(c);
    return null;
  }  
  public Object get(String s) {
    return get(new Category(s));
  }  
  public void print() {
    List l = new ArrayList(ht.entrySet());
    Collections.sort(l, new Comparator() {
      public int compare(Object obj1, Object obj2) {
        Map.Entry m1 = (Map.Entry)obj1;
        Map.Entry m2 = (Map.Entry)obj2;

        return ((Comparable)m1.getKey()).compareTo(m2.getKey());
      }
    });

    Category last = null;

    for(Iterator i = l.iterator(); i.hasNext(); ) {
      Map.Entry e = (Map.Entry)i.next();
      Object value = e.getValue();
      Category category = (Category)e.getKey();

      category.print(last);
      if(value != null)
    Debug.print(Debug.WARNING, ": " + value);
      Debug.println(Debug.WARNING);

      last = category;
    }
  }  
  public void save(PrintStream out) {
    Set entries = ht.entrySet();

    for(Iterator i = entries.iterator(); i.hasNext(); ) {
      Map.Entry e = (Map.Entry)i.next();
      Object value = e.getValue();
      Category category = (Category)e.getKey();

      out.print(category);
      if(value != null)
    out.print(": " + value);
      out.println();
    }
  }  
  public void set(Category c, Object o) {
    if(ht.containsKey(c))
      ht.remove(c);
    ht.put(c, o);
  }  
  public void set(String s, Object o) {
    set(new Category(s), o);
  }  
}

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