code: /*
   * Copyright (c) 2019 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.opcua.stack.core.types.builtin.unsigned;
  
  import org.jetbrains.annotations.NotNull;
  
  /**
   * The <code>unsigned short</code> type
   *
   * @author Lukas Eder
   * @author Jens Nerche
   */
  public final class UShort extends UNumber implements Comparable<UShort> {
  
      /**
       * Generated UID
       */
      private static final long serialVersionUID = -6821055240959745390L;
  
      /**
       * A constant holding the minimum value an <code>unsigned short</code> can
       * have, 0.
       */
      public static final int MIN_VALUE = 0x0000;
  
      /**
       * A constant holding the maximum value an <code>unsigned short</code> can
       * have, 2<sup>16</sup>-1.
       */
      public static final int MAX_VALUE = 0xffff;
  
      /**
       * A constant holding the minimum value an <code>unsigned short</code> can
       * have as UShort, 0.
       */
      public static final UShort MIN = valueOf(MIN_VALUE);
  
      /**
       * A constant holding the maximum value an <code>unsigned short</code> can
       * have as UShort, 2<sup>16</sup>-1.
       */
      public static final UShort MAX = valueOf(MAX_VALUE);
  
      /**
       * The value modelling the content of this <code>unsigned short</code>
       */
      private final int value;
  
      /**
       * Create an <code>unsigned short</code>
       *
       * @throws NumberFormatException If <code>value</code> does not contain a
       *                               parsable <code>unsigned short</code>.
       */
      public static UShort valueOf(String value) throws NumberFormatException {
          return new UShort(value);
      }
  
      /**
       * Create an <code>unsigned short</code> by masking it with
       * <code>0xFFFF</code> i.e. <code>(short) -1</code> becomes
       * <code>(ushort) 65535</code>
       */
      public static UShort valueOf(short value) {
          return new UShort(value);
      }
  
      /**
       * Create an <code>unsigned short</code>
       *
       * @throws NumberFormatException If <code>value</code> is not in the range
       *                               of an <code>unsigned short</code>
       */
      public static UShort valueOf(int value) throws NumberFormatException {
          return new UShort(value);
      }
  
      /**
       * Create an <code>unsigned short</code>
       *
       * @throws NumberFormatException If <code>value</code> is not in the range
       *                               of an <code>unsigned short</code>
       */
      private UShort(int value) throws NumberFormatException {
          this.value = value;
          rangeCheck();
      }
  
      /**
       * Create an <code>unsigned short</code> by masking it with
       * <code>0xFFFF</code> i.e. <code>(short) -1</code> becomes
       * <code>(ushort) 65535</code>
       */
      private UShort(short value) {
          this.value = value & MAX_VALUE;
      }
  
      /**
       * Create an <code>unsigned short</code>
       *
       * @throws NumberFormatException If <code>value</code> does not contain a
       *                               parsable <code>unsigned short</code>.
       */
      private UShort(String value) throws NumberFormatException {
          this.value = Integer.parseInt(value);
          rangeCheck();
      }
  
      private void rangeCheck() throws NumberFormatException {
          if (value < MIN_VALUE || value > MAX_VALUE) {
              throw new NumberFormatException("Value is out of range : " + value);
          }
      }
  
      @Override
      public int intValue() {
          return value;
      }
  
      @Override
      public long longValue() {
          return value;
      }
  
      @Override
      public float floatValue() {
          return value;
      }
  
      @Override
      public double doubleValue() {
          return value;
      }
  
      @Override
      public int hashCode() {
          return Integer.valueOf(value).hashCode();
      }
  
      @Override
      public boolean equals(Object obj) {
          if (obj instanceof UShort) {
              return value == ((UShort) obj).value;
          }
  
          return false;
      }
  
      @Override
      public String toString() {
          return Integer.toString(value);
      }
  
      @Override
      public int compareTo(@NotNull UShort o) {
          return (value < o.value ? -1 : (value == o.value ? 0 : 1));
      }
  
      public UShort add(UShort val) throws NumberFormatException {
          return valueOf(value + val.value);
      }
  
      public UShort add(int val) throws NumberFormatException {
          return valueOf(value + val);
      }
  
      public UShort subtract(final UShort val) {
          return valueOf(value - val.value);
      }
  
      public UShort subtract(final int val) {
          return valueOf(value - val);
      }
  
  }
  