[CIShell-SVN] SF.net SVN: cishell:[958] trunk/core/org.cishell.utilities/src/org/cishell/ utilities

[<pat...@us...>]

Revision: 958
          http://cishell.svn.sourceforge.net/cishell/?rev=958&view=rev
Author:   pataphil
Date:     2009-10-12 16:29:06 +0000 (Mon, 12 Oct 2009)

Log Message:
-----------
* Added FileUtilities.createTemporaryFileCopy, which wraps FileUtilities.copyFile.
* Made custom exception type FileCopyingException for file copy operations.

Modified Paths:
--------------
    trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileUtilities.java

Added Paths:
-----------
    trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileCopyingException.java

Added: trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileCopyingException.java
===================================================================
--- trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileCopyingException.java	                        (rev 0)
+++ trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileCopyingException.java	2009-10-12 16:29:06 UTC (rev 958)
@@ -0,0 +1,21 @@
+package org.cishell.utilities;
+
+public class FileCopyingException extends Exception {
+	private static final long serialVersionUID = 1L;
+	
+	public FileCopyingException() {
+		super();
+	}
+
+	public FileCopyingException(String arg0) {
+		super(arg0);
+	}
+
+	public FileCopyingException(Throwable arg0) {
+		super(arg0);
+	}
+
+	public FileCopyingException(String arg0, Throwable arg1) {
+		super(arg0, arg1);
+	}
+}
\ No newline at end of file

Modified: trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileUtilities.java
===================================================================
--- trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileUtilities.java	2009-10-08 21:19:28 UTC (rev 957)
+++ trunk/core/org.cishell.utilities/src/org/cishell/utilities/FileUtilities.java	2009-10-12 16:29:06 UTC (rev 958)
@@ -3,10 +3,13 @@
 import java.awt.image.BufferedImage;
 import java.io.BufferedReader;
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.IOException;
+import java.nio.channels.FileChannel;
 
 import javax.imageio.ImageIO;
 
@@ -173,6 +176,55 @@
     	return readTextStringBuffer.toString();
     }
     
+    public static void copyFile(File sourceFile, File targetFile)
+    		throws FileCopyingException {
+		try {
+			FileInputStream inputStream = new FileInputStream(sourceFile);
+			FileOutputStream outputStream = new FileOutputStream(targetFile);
+
+			FileChannel readableChannel = inputStream.getChannel();
+			FileChannel writableChannel = outputStream.getChannel();
+
+			writableChannel.truncate(0);
+			writableChannel.transferFrom(
+				readableChannel, 0, readableChannel.size());
+			inputStream.close();
+			outputStream.close();
+		} catch (IOException ioException) {
+			String exceptionMessage =
+				"An error occurred when copying from the file \"" +
+				sourceFile.getAbsolutePath() +
+				"\" to the file \"" +
+				targetFile.getAbsolutePath() +
+				"\".";
+			
+			throw new FileCopyingException(exceptionMessage, ioException);
+		}
+	}
+    
+    public static File createTemporaryFileCopy(
+    		File sourceFile, String fileName, String fileExtension)
+    		throws FileCopyingException {
+    	try {
+    		File temporaryTargetFile =
+    			createTemporaryFileInDefaultTemporaryDirectory(
+    				fileName, fileExtension);
+    		
+    		copyFile(sourceFile, temporaryTargetFile);
+    		
+    		return temporaryTargetFile;
+    	} catch (IOException temporaryFileCreationException) {
+    		String exceptionMessage =
+    			"An error occurred when trying to create the temporary file " +
+    			"with file name \"" + fileName + "\" " +
+    			"and file extension \"" + fileExtension + "\" " +
+    			"for copying file \"" + sourceFile.getAbsolutePath() + "\".";
+    		
+    		throw new FileCopyingException(
+    			exceptionMessage, temporaryFileCreationException);
+    	}
+    }
+    
     private static File ensureDirectoryExists(String directoryPath) {
     	File directory = new File(directoryPath);
     	


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