CcUnitType.java

/*
 * Mobicents, Communications Middleware
 * 
 * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Middleware LLC.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 *
 * Boston, MA  02110-1301  USA
 */
package net.java.slee.resource.diameter.cca.events.avp;

import java.io.StreamCorruptedException;

import net.java.slee.resource.diameter.base.events.avp.Enumerated;

/**
 *<pre> <b>8.32. CC-Unit-Type AVP</b>
 *
 *
 *   The CC-Unit-Type AVP (AVP Code 454) is of type Enumerated and
 *   specifies the type of units considered to be pooled into a credit
 *   pool.
 *
 *   The following values are defined for the CC-Unit-Type AVP:
 *
 *      <b>TIME                         0</b>
 *      <b>MONEY                        1</b>
 *      <b>TOTAL-OCTETS                 2</b>
 *      <b>INPUT-OCTETS                 3</b>
 *      <b>OUTPUT-OCTETS                4</b>
 *      <b>SERVICE-SPECIFIC-UNITS       5</b>
 *      <pre>
 *      
 * @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski </a>
 * @author <a href="mailto:brainslog@gmail.com"> Alexandre Mendonca </a>
 */
public enum CcUnitType implements Enumerated {
  
  TIME(0), MONEY(1), TOTAL_OCTETS(2), INPUT_OCTETS(3), OUTPUT_OCTETS(4), SERVICE_SPECIFIC_UNITS(5);

  private int value = -1;

  private CcUnitType(int value) {
    this.value = value;
  }

  private Object readResolve() throws StreamCorruptedException {
    try {
      return fromInt(value);
    }
    catch (IllegalArgumentException iae) {
      throw new StreamCorruptedException("Invalid internal state found: " + value);
    }
  }

  public static CcUnitType fromInt(int presumableValue) throws IllegalArgumentException {

    switch (presumableValue) {
    case 0:
      return TIME;
    case 1:
      return MONEY;
    case 2:
      return TOTAL_OCTETS;
    case 3:
      return INPUT_OCTETS;
    case 4:
      return OUTPUT_OCTETS;
    case 5:
      return SERVICE_SPECIFIC_UNITS;
      
    default:
      throw new IllegalArgumentException();
    }
  }

  public String toString() {
    return super.toString().replace("_", "-");
  }

  public int getValue() {
    return this.value;
  }

}