beagled/Lucene.Net/Util/Constants.cs

   1 /*
   2  * Copyright 2004 The Apache Software Foundation
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 using System;
  17 namespace Lucene.Net.Util
  18 {
  19         /// <summary> Some useful constants.
  20         ///
  21         /// </summary>
  22         /// <author>   Doug Cutting
  23         /// </author>
  24         /// <version>  $Id: Constants.cs,v 1.1 2005/01/17 19:54:32 joeshaw Exp $
  25         ///
  26         /// </version>
  27
  28         public sealed class Constants
  29         {
  30                 private Constants()
  31                 {
  32                 } // can't construct
  33
  34                 /// <summary>The value of <tt>System.getProperty("java.version")<tt>. *</summary>
  35                 public static readonly System.String JAVA_VERSION = System.Configuration.ConfigurationSettings.AppSettings.Get("java.version");
  36                 /// <summary>True iff this is Java version 1.1. </summary>
  37                 public static readonly bool JAVA_1_1 = JAVA_VERSION.StartsWith("1.1.");
  38                 /// <summary>True iff this is Java version 1.2. </summary>
  39                 public static readonly bool JAVA_1_2 = JAVA_VERSION.StartsWith("1.2.");
  40                 /// <summary>True iff this is Java version 1.3. </summary>
  41                 public static readonly bool JAVA_1_3 = JAVA_VERSION.StartsWith("1.3.");
  42
  43                 /// <summary>The value of <tt>System.getProperty("os.name")<tt>. *</summary>
  44                 public static readonly System.String OS_NAME = System.Environment.GetEnvironmentVariable("OS");
  45                 /// <summary>True iff running on Linux. </summary>
  46                 public static readonly bool LINUX = OS_NAME.StartsWith("Linux");
  47                 /// <summary>True iff running on Windows. </summary>
  48                 public static readonly bool WINDOWS = OS_NAME.StartsWith("Windows");
  49                 /// <summary>True iff running on SunOS. </summary>
  50                 public static readonly bool SUN_OS = OS_NAME.StartsWith("SunOS");
  51         }
  52 }