File Stream

Checks if a file have write permissions

Posted on 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>
        /// Checks if a file have write permissions
        /// </summary>
        /// <param name="file">The file instance to check</param>
        /// <returns>True if have write permissions otherwise false</returns>
        /// --------------------------------------------------------------
        public static bool IsWriteable(FileInfo file)
        {
            return (File.GetAttributes(file.FullName) &amp; FileAttributes.ReadOnly) != FileAttributes.ReadOnly;
        }
   }
}

Returns true if the file specified by the pathname is a hidden file.

Posted on 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>
        /// Returns true if the file specified by the pathname is a hidden file.
        /// </summary>
        /// <param name="file">The abstract pathname of the file to test</param>
        /// <returns>True if the file is hidden, false otherwise</returns>
        /// --------------------------------------------------------------
        public static bool IsHidden(FileInfo file)
        {
            return ((file.Attributes &amp; FileAttributes.Hidden) > 0);
        }
   }
}

Tests if the specified file is newer than the reference file.

Posted on 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> Tests if the specified <i>file</i> is newer than the reference 
        ///  <i>file</i>.
        /// 
        /// </summary>
        /// <param name="newerFile">the <i>file</i> of which the modification date must be compared
        /// </param>
        /// <param name="referenceFile">the <i>file</i> of which the modification date is used 
        /// like reference
        /// </param>
        /// <returns> true if the <i>file</i> exists and has been modified more recently
        /// than the reference <i>file</i>.
        /// </returns>
        /// ---------------------------------------------------------------
        public static bool IsNewer(FileInfo newerFile, FileInfo referenceFile)
        {

            if (referenceFile == null)
                throw new ArgumentNullException("referenceFile");

            bool exists = referenceFile.Exists;
            if (!referenceFile.Exists)
                exists = Directory.Exists(referenceFile.FullName);
            if (!exists)
                throw new System.ArgumentException("The reference file &#039;" + referenceFile + "&#039; doesn&#039;t exist");

            return IsNewer(newerFile, referenceFile.LastWriteTime);
        }


        /// ---------------------------------------------------------------
        /// <summary>
        /// Tests if the specified <i>file</i> is newer than the specified 
    /// time reference.    
        /// </summary>
        /// <param name="file">the <i>file</i> of which the modification date must be compared.</param>
        /// <param name="timeCompare">the time reference</param>
        /// <returns>true if the <i>file</i> exists and has been modified after
        /// the given time reference.</returns>
        /// ---------------------------------------------------------------
        public static bool IsNewer(FileInfo file, DateTime timeCompare)
        {
            if (file == null)            
                throw new ArgumentException("No file specified");

            bool exists = file.Exists;
            if (!file.Exists)                
                exists = Directory.Exists(file.FullName);
            if (!exists)            
                return false;

            return (file.LastWriteTime > timeCompare);
        }
   }
}

Get all the files that matches a wildcard pattern, eg. (*.tmp)

Posted on 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
  {
    private static bool hasWildCards(string file)
    {
      return file.IndexOf("*") > -1;
    }

        /// ---------------------------------------------------------------
        /// <summary>
    /// Get all the files that matches a wildcard pattern, eg. (*.tmp)
    /// </summary>
    /// <param name="pathPattern">Wildcard pattern to search, eg. (Profile*.doc)</param>
    /// <returns>an array of FileInfo objects that results from the wildcard pattern file search</returns>
        /// ---------------------------------------------------------------
    public static FileInfo[] GetFilesMatchWildCard(string pathPattern)
    {
      FileInfo[] files = new FileInfo[0];
      if (hasWildCards(pathPattern))
      {
        string dir = Path.GetDirectoryName(pathPattern);
        DirectoryInfo info = new DirectoryInfo(dir);
        string pattern = Path.GetFileName(pathPattern);
        if (info.Exists)
          files = info.GetFiles(pattern);
      }
      else
      {
        files = new FileInfo[] {new FileInfo(pathPattern.Trim())};
      }
      return files;
    }
    }
}

Returns an array of abstract pathnames representing the files and directories of the specified path.

Posted on 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
{

///
///

/// This class provides basic facilities for manipulating files and file paths.
///
///

File-related methods

/// There are methods to
/// /// copy a file to another file,
/// compare the content of 2 files,
/// delete files using the wildcard character,
/// etc
/// ///

///
public sealed class FileUtils
{
/// —————————————————————
///

/// Returns an array of abstract pathnames representing the files and directories of the specified path.
///

/// The abstract pathname to list it childs. /// An array of abstract pathnames childs of the path specified or
/// null if the path is not a directory
/// —————————————————————
public static FileInfo[] GetFiles(FileInfo path)
{
if ((path.Attributes & FileAttributes.Directory) > 0)
{
String[] fullpathnames = Directory.GetFileSystemEntries(path.FullName);
FileInfo[] result = new FileInfo[fullpathnames.Length];
for (int i = 0; i < result.Length; i++) result[i] = new FileInfo(fullpathnames[i]); return result; } return null; } } } [/csharp]

Read the content of the text file.

Posted on 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>
        /// Read the content of the text file.
        /// </summary>
        /// <param name="path">Full path (directory + filename) of file to read</param>
        /// <returns>content in string</returns>
        /// ---------------------------------------------------------------
        public static string ReadTextFile(string path)
        {
            string content = "";
            FileStream stream = null;
            StreamReader reader = null;

            FileInfo fi = new FileInfo(path);

            if (!fi.Exists)
                throw new FileNotFoundException(string.Format("The file &#039;{0}&#039; does not exists", path));

            try
            {
                stream = fi.OpenRead();
                reader = new StreamReader(stream);
                content = reader.ReadToEnd();
            }            
            finally
            {
                if (stream != null)
                {
                    stream.Close();
                }
                if (reader != null)
                {
                    reader.Close();
                }                
            }
            return content;
        }
    }
}

Checks if the giving File exists, and returns its length

Posted on 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>
        /// Checks if the giving File exists, and returns its length
        /// </summary>
        /// <param name="file">The File instance to check</param>
        /// <returns>The length of the file if it exists, 0 otherwise</returns>
        /// ---------------------------------------------------------------
        public static long GetFileLength(FileInfo file)
        {
            if (file.Exists)
                return file.Length;
            else
                return 0;
        }
   }
}