/// <summary>
/// Get Sub Folders in the Paths for Recursion
/// </summary>
/// <param name="sourcePath">Source Path</param>
/// <param name="targetPath">Target Path</param>
/// <param name="diffResult">Diff Result for Catching Exception</param>
/// <param name="result">Result Album</param>
/// <param name="recursive">Recurive Stack</param>
private void getSubFoldersForRecursion(string sourcePath, string targetPath, DiffResult diffResult, Album result, Stack<DiffStackContent> recursive)
{
try
{
List<string> sourceFolders = getSubFoldersFromPath(sourcePath);
List<string> targetFolders = getSubFoldersFromPath(targetPath);
// Check ALL Folders: Recursively Check ALL Files Inside
foreach (string sourceFolder in sourceFolders)
{
string targetFolder = Album.combinePath(targetPath, getNameFromPath(sourceFolder));
// If Target Folder Exist: Recursively Check
if (targetFolders.Exists(delegate(string tempPath) { return tempPath.ToUpper() == targetFolder.ToUpper(); }))
{
// Recursion by pushing the folder into stack
DiffStackContent temp = new DiffStackContent();
temp.source = sourceFolder;
temp.target = targetFolder;
recursive.Push(temp);
//result = append(result, compare(sourceFolder, targetFolder));
}
// If Target Folder Doesn't Exist: Add Directly
else
{
result.add(new Album(getNameFromPath(sourceFolder), sourceFolder));
}
}
}
catch (UnauthorizedAccessException uae)
{
// Record:
diffResult.uaeThrown();
}
}
/// <summary>
/// Public compare function:
/// Compare the source path with the target path and return only the files in source folder
/// that are different from files in the target folder.
/// </summary>
/// <param name="sourcePath">Path of source folder.</param>
/// <param name="targetPath">Path of target folder.</param>
/// <returns>Album containing the files/folders in source folder that are different.</returns>
public DiffResult compare(string sourcePath, string targetPath)
{
#region Pre Conditions
Debug.Assert(sourcePath != null, "Source Path cannot be null");
Debug.Assert(targetPath != null, "Target Path cannot be null");
#endregion
// Create the Result Album
DiffResult diffResult = new DiffResult();
Album result = new Album(DIFF_ALBUM_NAME, string.Empty);
// Initiate the Stack for Recursion
Stack<DiffStackContent> recursive = new Stack<DiffStackContent>();
DiffStackContent stackContent = new DiffStackContent(sourcePath, targetPath);
recursive.Push(stackContent);
do /* Do-While Loop for Performance */
{
// Get the sourcePath and targetPath: POP from Stack
stackContent = recursive.Pop();
sourcePath = stackContent.source;
targetPath = stackContent.target;
// Compare Files
diffCompareFiles(sourcePath, targetPath, diffResult, result);
// Get Sub Folders for Recursion
getSubFoldersForRecursion(sourcePath, targetPath, diffResult, result, recursive);
} while (recursive.Count != 0);
// Return Result
diffResult.setResult(result);
#region Post Conditions
Debug.Assert(diffResult != null, "Diff Result Cannot be null");
#endregion
return diffResult;
}