supportclass.cs

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/*
 * 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;

/// <summary>
/// This interface should be implemented by any class whose instances are intended 
/// to be executed by a thread.
/// </summary>
public interface IThreadRunnable
{
	/// <summary>
	/// This method has to be implemented in order that starting of the thread causes the object's 
	/// run method to be called in that separately executing thread.
	/// </summary>
	void Run();
}

/// <summary>
/// Contains conversion support elements such as classes, interfaces and static methods.
/// </summary>
public class SupportClass
{
    /// <summary>
    /// Support class used to handle threads
    /// </summary>
    public class ThreadClass : IThreadRunnable
    {
        /// <summary>
        /// The instance of System.Threading.Thread
        /// </summary>
        private System.Threading.Thread threadField;
	      
        /// <summary>
        /// Initializes a new instance of the ThreadClass class
        /// </summary>
        public ThreadClass()
        {
            threadField = new System.Threading.Thread(new System.Threading.ThreadStart(Run));
        }
	 
        /// <summary>
        /// Initializes a new instance of the Thread class.
        /// </summary>
        /// <param name="Name">The name of the thread</param>
        public ThreadClass(System.String Name)
        {
            threadField = new System.Threading.Thread(new System.Threading.ThreadStart(Run));
            this.Name = Name;
        }
	      
        /// <summary>
        /// Initializes a new instance of the Thread class.
        /// </summary>
        /// <param name="Start">A ThreadStart delegate that references the methods to be invoked when this thread begins executing</param>
        public ThreadClass(System.Threading.ThreadStart Start)
        {
            threadField = new System.Threading.Thread(Start);
        }
	 
        /// <summary>
        /// Initializes a new instance of the Thread class.
        /// </summary>
        /// <param name="Start">A ThreadStart delegate that references the methods to be invoked when this thread begins executing</param>
        /// <param name="Name">The name of the thread</param>
        public ThreadClass(System.Threading.ThreadStart Start, System.String Name)
        {
            threadField = new System.Threading.Thread(Start);
            this.Name = Name;
        }
	      
        /// <summary>
        /// This method has no functionality unless the method is overridden
        /// </summary>
        public virtual void Run()
        {
        }
	      
        /// <summary>
        /// Causes the operating system to change the state of the current thread instance to ThreadState.Running
        /// </summary>
        public virtual void Start()
        {
            threadField.Start();
        }
	      
        /// <summary>
        /// Interrupts a thread that is in the WaitSleepJoin thread state
        /// </summary>
        public virtual void Interrupt()
        {
            threadField.Interrupt();
        }
	      
        /// <summary>
        /// Gets the current thread instance
        /// </summary>
        public System.Threading.Thread Instance
        {
            get
            {
                return threadField;
            }
            set
            {
                threadField = value;
            }
        }
	      
        /// <summary>
        /// Gets or sets the name of the thread
        /// </summary>
        public System.String Name
        {
            get
            {
                return threadField.Name;
            }
            set
            {
                if (threadField.Name == null)
                    threadField.Name = value; 
            }
        }
	      
        /// <summary>
        /// Gets or sets a value indicating the scheduling priority of a thread
        /// </summary>
        public System.Threading.ThreadPriority Priority
        {
            get
            {
                return threadField.Priority;
            }
            set
            {
                threadField.Priority = value;
            }
        }
	      
        /// <summary>
        /// Gets a value indicating the execution status of the current thread
        /// </summary>
        public bool IsAlive
        {
            get
            {
                return threadField.IsAlive;
            }
        }
	      
        /// <summary>
        /// Gets or sets a value indicating whether or not a thread is a background thread.
        /// </summary>
        public bool IsBackground
        {
            get
            {
                return threadField.IsBackground;
            } 
            set
            {
                threadField.IsBackground = value;
            }
        }
	      
        /// <summary>
        /// Blocks the calling thread until a thread terminates
        /// </summary>
        public void Join()
        {
            threadField.Join();
        }
	      
        /// <summary>
        /// Blocks the calling thread until a thread terminates or the specified time elapses
        /// </summary>
        /// <param name="MiliSeconds">Time of wait in milliseconds</param>
        public void Join(long MiliSeconds)
        {
            lock(this)
            {
                threadField.Join(new System.TimeSpan(MiliSeconds * 10000));
            }
        }
	      
        /// <summary>
        /// Blocks the calling thread until a thread terminates or the specified time elapses
        /// </summary>
        /// <param name="MiliSeconds">Time of wait in milliseconds</param>
        /// <param name="NanoSeconds">Time of wait in nanoseconds</param>
        public void Join(long MiliSeconds, int NanoSeconds)
        {
            lock(this)
            {
                threadField.Join(new System.TimeSpan(MiliSeconds * 10000 + NanoSeconds * 100));
            }
        }
	      
        /// <summary>
        /// Resumes a thread that has been suspended
        /// </summary>
        public void Resume()
        {
            threadField.Resume();
        }
	      
        /// <summary>
        /// Raises a ThreadAbortException in the thread on which it is invoked, 
        /// to begin the process of terminating the thread. Calling this method 
        /// usually terminates the thread
        /// </summary>
        public void Abort()
        {
            threadField.Abort();
        }
	      
        /// <summary>
        /// Raises a ThreadAbortException in the thread on which it is invoked, 
        /// to begin the process of terminating the thread while also providing
        /// exception information about the thread termination. 
        /// Calling this method usually terminates the thread.
        /// </summary>
        /// <param name="stateInfo">An object that contains application-specific information, such as state, which can be used by the thread being aborted</param>
        public void Abort(System.Object stateInfo)
        {
            lock(this)
            {
                threadField.Abort(stateInfo);
            }
        }
	      
        /// <summary>
        /// Suspends the thread, if the thread is already suspended it has no effect
        /// </summary>
        public void Suspend()
        {
            threadField.Suspend();
        }
	      
        /// <summary>
        /// Obtain a String that represents the current Object
        /// </summary>
        /// <returns>A String that represents the current Object</returns>
        public override System.String ToString()
        {
            return "Thread[" + Name + "," + Priority.ToString() + "," + "" + "]";
        }
	     
        /// <summary>
        /// Gets the currently running thread
        /// </summary>
        /// <returns>The currently running thread</returns>
        public static ThreadClass Current()
        {
            ThreadClass CurrentThread = new ThreadClass();
            CurrentThread.Instance = System.Threading.Thread.CurrentThread;
            return CurrentThread;
        }
    }

    /// <summary>
    /// Represents the methods to support some operations over files.
    /// </summary>
    public class FileSupport
    {
        /// <summary>
        /// Returns an array of abstract pathnames representing the files and directories of the specified path.
        /// </summary>
        /// <param name="path">The abstract pathname to list it childs.</param>
        /// <returns>An array of abstract pathnames childs of the path specified or null if the path is not a directory</returns>
        public static System.IO.FileInfo[] GetFiles(System.IO.FileInfo path)
        {
            if ((path.Attributes & System.IO.FileAttributes.Directory) > 0)
            {																 
                String[] fullpathnames = System.IO.Directory.GetFileSystemEntries(path.FullName);
                System.IO.FileInfo[] result = new System.IO.FileInfo[fullpathnames.Length];
                for (int i = 0; i < result.Length ; i++)
                    result[i] = new System.IO.FileInfo(fullpathnames[i]);
                return result;
            }
            else
                return null;
        }
    }

    /// <summary>
    /// A simple class for number conversions.
    /// </summary>
    public class Number
    {
        /// <summary>
        /// Min radix value.
        /// </summary>
        public const int MIN_RADIX = 2;
        /// <summary>
        /// Max radix value.
        /// </summary>
        public const int MAX_RADIX = 36;

        private const System.String digits = "0123456789abcdefghijklmnopqrstuvwxyz";

        public static System.String ToString(float f)
        {
            if (((float)(int)f) == f)
            {
                return ((int)f).ToString() + ".0";
            }
            else
            {
                return f.ToString(System.Globalization.NumberFormatInfo.InvariantInfo);
            }
        }

        /// <summary>
        /// Converts a number to System.String in the specified radix.
        /// </summary>
        /// <param name="i">A number to be converted.</param>
        /// <param name="radix">A radix.</param>
        /// <returns>A System.String representation of the number in the specified redix.</returns>
        public static System.String ToString(long i, int radix)
        {
            if (radix < MIN_RADIX || radix > MAX_RADIX)
                radix = 10;

            char[] buf = new char[65];
            int charPos = 64;
            bool negative = (i < 0);

            if (!negative) 
            {
                i = -i;
            }

            while (i <= -radix) 
            {
                buf[charPos--] = digits[(int)(-(i % radix))];
                i = i / radix;
            }
            buf[charPos] = digits[(int)(-i)];

            if (negative) 
            {
                buf[--charPos] = '-';
            }

            return new System.String(buf, charPos, (65 - charPos)); 
        }

        /// <summary>
        /// Parses a number in the specified radix.
        /// </summary>
        /// <param name="s">An input System.String.</param>
        /// <param name="radix">A radix.</param>
        /// <returns>The parsed number in the specified radix.</returns>
        public static long Parse(System.String s, int radix)