Get Files from a directory

Posted on February 11, 2011June 27, 2015 by coder

   
  


using System;
using System.IO;

class MainClass {
    static void Main(string[] args) {
        DirectoryInfo dir = new DirectoryInfo("c:");
        FileInfo[] files = dir.GetFiles("c:a.txt");

        foreach (FileInfo file in files) {
            Console.Write("Name: " + file.Name + "  ");
            Console.WriteLine("Size: " + file.Length.ToString());
        }
    }
}

Find Files That Match a Wildcard Expression

Posted on February 11, 2011June 27, 2015 by coder

   
  

using System;
using System.IO;

public class WildcardTest {

    private static void Main(string[] args) {

        DirectoryInfo dir = new DirectoryInfo("c:");
        FileInfo[] files = dir.GetFiles("*");
            
        foreach (FileInfo file in files) {
            Console.Write("Name: " + file.Name + "  ");
            Console.WriteLine("Size: " + file.Length.ToString());
        }
    }
}

Builds a CSV list from the specified int[], separator String and quote String

Posted on February 11, 2011June 27, 2015 by coder

//
// (C) Copyright 2009 Irantha Suwandarathna (irantha@gmail.com)
// All rights reserved.
//

/* Copyright (c) 2001-2008, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use _in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions _in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer _in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

using System;
using System.Text;
using System.Collections.Generic;

namespace EffiProz.Core.Lib
{

/** Provides a collection of convenience methods for processing and
* creating objects with String value components.
*
* @author fredt@users
* @author boucherb@users
* @version 1.7.2
* @since 1.7.0
*/
public class StringUtil
{
//public static string getList(Object[] s, string separator, string quote)
//{

// int len = s.Length;
// StringBuilder b = new StringBuilder(len * 16);

// for (int i = 0; i < len; i++) // { // b.Append(quote); // b.Append(s[i]); // b.Append(quote); // if (i + 1 < len) // { // b.Append(separator); // } // } // return b.ToString(); //} /** * Builds a CSV list from the specified int[], separator
* String and quote String.

*
*

All arguments are assumed to be non-null.
*
Separates each list element with the value of the
* separator argument.
*
Prepends and appends each element with the value of the
* quote argument.
*

Builds a CSV list from the specified String[], separator string and quote string.

Posted on February 11, 2011June 27, 2015 by coder

//
// (C) Copyright 2009 Irantha Suwandarathna (irantha@gmail.com)
// All rights reserved.
//

using System;
using System.Text;
using System.Collections.Generic;

namespace EffiProz.Core.Lib
{

///**
// * Builds a bracketed CSV list from the array
// * @param array an array of Objects
// * @return string
// */
//public static string arrayToString(Object array)
//{

// int len = ((Array)array).Length;
// int last = len – 1;
// StringBuilder sb = new StringBuilder(2 * (len + 1));

// sb.Append('{');

// for (int i = 0; i < len; i++) // { // sb.Append(((char[])array)[i]); // if (i != last) // { // sb.Append(','); // } // } // sb.Append('}'); // return sb.ToString(); //} /** * Builds a CSV list from the specified String[], separator string and * quote string.

*
*

All arguments are assumed to be non-null.
*
Separates each list element with the value of the
* separator argument.
*
Prepends and appends each element with the value of the
* quote argument.
*
No attempt is made to escape the quote character sequence if it is
* found public to a list element.
*

Builds a bracketed CSV list from the array

Posted on February 11, 2011June 27, 2015 by coder

//
// (C) Copyright 2009 Irantha Suwandarathna (irantha@gmail.com)
// All rights reserved.
//

using System;
using System.Text;
using System.Collections.Generic;

namespace EffiProz.Core.Lib
{

/** Provides a collection of convenience methods for processing and
* creating objects with String value components.
*
* @author fredt@users
* @author boucherb@users
* @version 1.7.2
* @since 1.7.0
*/
public class StringUtil
{
/**
* Builds a bracketed CSV list from the array
* @param array an array of Objects
* @return string
*/
public static String arrayToString(Object array)
{

int len = ((Array)array).Length;
int last = len – 1;
StringBuilder sb = new StringBuilder(2 * (len + 1));

sb.Append('{');

for (int i = 0; i < len; i++) { sb.Append(((Array)array).GetValue(i)); if (i != last) { sb.Append(','); } } sb.Append('}'); return sb.ToString(); } } } [/csharp]

Save a byte array content into a file.

Posted on February 11, 2011June 27, 2015 by coder

   
 

#region License and Copyright
/* -------------------------------------------------------------------------
 * Dotnet Commons IO
 *
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library 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 library; if not, write to the 
 * 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 * -------------------------------------------------------------------------
 */
#endregion

using System;
using System.Collections;
using System.Globalization;
using System.IO;

namespace Dotnet.Commons.IO
{
  
  ///  
  /// <summary>  
  /// This class provides basic facilities for manipulating files and file paths.
    /// 
    /// <h3>File-related methods</h3>
    /// There are methods to 
    /// <list type="bullet">
    ///     <item>copy a file to another file,</item>
    ///     <item>compare the content of 2 files,</item>
    ///     <item>delete files using the wildcard character,</item>
    ///     <item>etc</item>
    /// </list>
  /// </summary>
  ///     
  public sealed class FileUtils
  {
        /// ---------------------------------------------------------------
        /// <summary>
        /// Save a byte array content into a file.
        /// </summary>
        /// <param name="path">The full path of the file to save</param>
        /// <param name="content">content to save in byte array</param>
        /// ---------------------------------------------------------------
        public static void Save(string path, byte[] content)
        {
            if (Path.GetDirectoryName(path).Length > 0 &amp;&amp; 
                !Directory.Exists(Path.GetDirectoryName(path)))
                throw new DirectoryNotFoundException(String.Format("The directory path &#039;{0}&#039; to save the file does not exist.", Path.GetDirectoryName(path)));

            using (FileStream writeStream = new FileStream(path, FileMode.Create, FileAccess.Write))
            {
                writeStream.Write(content, 0, content.Length);
                writeStream.Close();
            }
        }

        /// ---------------------------------------------------------------
        /// <summary>
        /// Save a char array content into a file.
        /// </summary>
        /// <param name="path">The full path of the file to save.</param>
        /// <param name="content">content to save in char array.</param>
        /// ---------------------------------------------------------------
        public static void Save(string path, char[] content)
        {
            // convert char[] to byte[]
            System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
            byte[] byteArray = encoding.GetBytes(content);

            Save(path, byteArray);
        }

        /// ---------------------------------------------------------------
        /// <summary>
        /// Save a string content into a file.
        /// </summary>
        /// <param name="path">The full path of the file to save</param>
        /// <param name="content">content to save in string</param>
        /// ---------------------------------------------------------------
        public static void Save(string path, string content)
        {
            if (Path.GetDirectoryName(path).Length > 0 &amp;&amp;
                !Directory.Exists(Path.GetDirectoryName(path)))
                throw new DirectoryNotFoundException(String.Format("The directory path &#039;{0}&#039; to save the file does not exist.", Path.GetDirectoryName(path)));

            using (StreamWriter stream = File.CreateText(path))
            {
                stream.Write(content);
                stream.Close();
            }
        }

    }
}

Read binary context of a file.

Posted on February 11, 2011June 27, 2015 by coder

   
 
#region License and Copyright
/* -------------------------------------------------------------------------
 * Dotnet Commons IO
 *
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library 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 library; if not, write to the 
 * 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 * -------------------------------------------------------------------------
 */
#endregion

using System;
using System.Collections;
using System.Globalization;
using System.IO;

namespace Dotnet.Commons.IO
{

    ///  
    /// <summary>  
    /// This class provides basic facilities for manipulating files and file paths.
    /// 
    /// <h3>File-related methods</h3>
    /// There are methods to 
    /// <list type="bullet">
    ///     <item>copy a file to another file,</item>
    ///     <item>compare the content of 2 files,</item>
    ///     <item>delete files using the wildcard character,</item>
    ///     <item>etc</item>
    /// </list>
    /// </summary>
    ///     
    public sealed class FileUtils
    {
        /// <summary>
        /// Reads data from the beginning of a stream until the end is reached. The
        /// data is returned as a byte array. 
        /// </summary>
        /// <param name="stream">The stream to read data from</param>
        /// <exception cref="IOException">thrown if any of the underlying IO calls fail</exception>
        /// <remarks>Use this method if you don&#039;t know the length of the stream in advance 
        /// (for instance a network stream) and just want to read the whole lot into a buffer. 
        /// <para>
        /// <strong>Note:</strong><br/>
        /// This method of reading the stream is not terribly efficient.
        /// </para>
        ///  </remarks>
        public static byte[] GetBytes(Stream stream)
        {
            if (stream is MemoryStream)
                return ((MemoryStream)stream).ToArray();

            byte[] byteArray = new byte[1024];
            using (MemoryStream ms = new MemoryStream())
            {
                stream.Position = 0;
                while (true)
                {
                    int readLen = stream.Read(byteArray, 0, byteArray.Length);
                    if (readLen <= 0)
                        return ms.ToArray();
                    ms.Write(byteArray, 0, readLen);
                }
            }
        }
        /// <summary>
        /// Reads data from a stream until the end is reached. The
        /// data is returned as a byte array. 
        /// </summary>
        /// <param name="stream">The stream to read data from</param>
        /// <param name="initialLength">The initial buffer length. If the length is &amp;lt; 1,
        /// then the default value of <see cref="Int16.MaxValue"/> will be used.
        /// </param>
        /// <exception cref="IOException">thrown if any of the underlying IO calls fail</exception>
        /// <remarks>Use this method to get the data if you know the expected length of data to start with.</remarks>
        public static byte[] GetBytes(Stream stream, long initialLength)
        {
            // If we&#039;ve been passed an unhelpful initial length, just
            // use 32K.
            if (initialLength < 1)
                initialLength = Int16.MaxValue;


            byte&#91;&#93; buffer = new byte&#91;initialLength&#93;;
            int read = 0;

            int chunk;
            while ((chunk = stream.Read(buffer, read, buffer.Length - read)) > 0)
            {
                read += chunk;

                // If we&#039;ve reached the end of our buffer, check to see if there&#039;s
                // any more information
                if (read == buffer.Length)
                {
                    int nextByte = stream.ReadByte();

                    // End of stream? If so, we&#039;re done
                    if (nextByte == -1)
                    {
                        return buffer;
                    }

                    // Nope. Resize the buffer, put in the byte we&#039;ve just
                    // read, and continue
                    byte[] newBuffer = new byte[buffer.Length * 2];
                    Array.Copy(buffer, newBuffer, buffer.Length);
                    newBuffer[read] = (byte)nextByte;
                    buffer = newBuffer;
                    read++;
                }
            }
            // Buffer is now too big. Shrink it.
            byte[] ret = new byte[read];
            Array.Copy(buffer, ret, read);
            return ret;
        }
        /// ---------------------------------------------------------------
        /// <summary>
        /// Read binary context of a file.
        /// </summary>
        /// <param name="path">Full path (directory + filename) of file to read</param>
        /// <returns>content in byte array</returns>
        /// ---------------------------------------------------------------
        public static byte[] ReadBinaryFile(string path)
        {
            FileInfo fi = new FileInfo(path);
            byte[] data = null;

            if (!fi.Exists)
                throw new IOException(path + " does not exists");

            // Read File 
            using (Stream stream = File.OpenRead(path))
            {
                // Get Data from The Stream
                data = GetBytes(stream, fi.Length);

                // Close Stream
                stream.Close();
            }

            fi.Refresh();

            // Return Data
            return (data);
        }
    }
}

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