/Server-1.2R2/Lucene.Net/Util/Constants.cs

/* 

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You under the Apache License, Version 2.0

 * (the "License"); you may not use this file except in compliance with

 * the License.  You may obtain a copy of the License at

 * 

 * http://www.apache.org/licenses/LICENSE-2.0

 * 

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



using System;



using LucenePackage = Lucene.Net.LucenePackage;



namespace Lucene.Net.Util

{

	

	/// <summary> Some useful constants.

	/// 

	/// 

	/// </summary>

	/// <version>  $Id: Constants.java 828327 2009-10-22 06:47:40Z uschindler $

	/// 

	/// </version>

	

	public sealed class Constants

	{

		private Constants()

		{

		} // can't construct

		

		/// <summary>The value of <tt>System.getProperty("java.version")</tt>. *</summary>

		public static readonly System.String JAVA_VERSION = SupportClass.AppSettings.Get("java.version", "");

		/// <summary>True iff this is Java version 1.1. </summary>

		public static readonly bool JAVA_1_1 = JAVA_VERSION.StartsWith("1.1.");

		/// <summary>True iff this is Java version 1.2. </summary>

		public static readonly bool JAVA_1_2 = JAVA_VERSION.StartsWith("1.2.");

		/// <summary>True iff this is Java version 1.3. </summary>

		public static readonly bool JAVA_1_3 = JAVA_VERSION.StartsWith("1.3.");

		

		/// <summary>The value of <tt>System.getProperty("os.name")</tt>. *</summary>

		public static readonly System.String OS_NAME = "Windows_NT";

		/// <summary>True iff running on Linux. </summary>

		public static readonly bool LINUX = OS_NAME.StartsWith("Linux");

		/// <summary>True iff running on Windows. </summary>

		public static readonly bool WINDOWS = OS_NAME.StartsWith("Windows");

		/// <summary>True iff running on SunOS. </summary>

		public static readonly bool SUN_OS = OS_NAME.StartsWith("SunOS");

		

		public static readonly System.String OS_ARCH = "X86";//System.Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE");

        public static readonly System.String OS_VERSION = "Microsoft Windows NT 6.1.7600.0";

		public static readonly System.String JAVA_VENDOR = SupportClass.AppSettings.Get("java.vendor", "");

		

		// NOTE: this logic may not be correct; if you know of a

		// more reliable approach please raise it on java-dev!

		public static bool JRE_IS_64BIT;



        // this method prevents inlining the final version constant in compiled

        // classes,

        // see: http://www.javaworld.com/community/node/3400

        private static System.String Ident(System.String s)

        {

            return s.ToString();

        }



		public static readonly System.String LUCENE_MAIN_VERSION = Ident("2.9.1");

		

		public static System.String LUCENE_VERSION;

		static Constants()

		{

            if (IntPtr.Size == 8)

            {

                JRE_IS_64BIT = true;// 64 bit machine

            }

            else if (IntPtr.Size == 4)

            {

                JRE_IS_64BIT = false;// 32 bit machine

            }



            LUCENE_VERSION = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();



		}

	}

}