Update of /cvsroot/sandev/sand/apps/basics/src/org/sandev/basics/util
In directory sfp-cvsdas-3.v30.ch3.sourceforge.com:/tmp/cvs-serv13012
Modified Files:
FileUtil.java
Log Message:
Added niocopyfile utility for channel based file copying.
Index: FileUtil.java
===================================================================
RCS file: /cvsroot/sandev/sand/apps/basics/src/org/sandev/basics/util/FileUtil.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** FileUtil.java 24 Jan 2010 21:01:37 -0000 1.2
--- FileUtil.java 30 Oct 2010 17:33:27 -0000 1.3
***************
*** 29,32 ****
--- 29,33 ----
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
+ import java.nio.channels.FileChannel;
***************
*** 53,67 ****
/**
! * Copy the specified file srcfile to outfile
*/
public static void copyfile(File srcfile,File outfile)
throws IOException
{
! OutputStream fileOut=null;
! InputStream fileIn=null;
! try {
if(!srcfile.exists()) {
! throw new IOException(
! "copyfile srcfile " + srcfile + " not found."); }
fileIn=new BufferedInputStream(new FileInputStream(srcfile));
fileOut=new BufferedOutputStream(new FileOutputStream(outfile));
--- 54,78 ----
/**
! * Copy srcfile to outfile.
! */
! public static void copyfile(String srcfile,String outfile)
! throws IOException
! {
! copyfile(new File(srcfile),new File(outfile));
! }
!
!
! /**
! * Copy the specified srcfile to outfile using buffered streams
*/
public static void copyfile(File srcfile,File outfile)
throws IOException
{
! OutputStream fileOut=null;
! InputStream fileIn=null;
! try {
if(!srcfile.exists()) {
! throw new IOException("copyfile srcfile " + srcfile +
! " does not exist."); }
fileIn=new BufferedInputStream(new FileInputStream(srcfile));
fileOut=new BufferedOutputStream(new FileOutputStream(outfile));
***************
*** 70,78 ****
while((bytesread=fileIn.read(buf))>0) {
fileOut.write(buf,0,bytesread); }
! } finally {
if(fileOut!=null) {
fileOut.close(); }
if(fileIn!=null) {
fileIn.close(); }
}
}
--- 81,116 ----
while((bytesread=fileIn.read(buf))>0) {
fileOut.write(buf,0,bytesread); }
! } finally {
if(fileOut!=null) {
fileOut.close(); }
if(fileIn!=null) {
fileIn.close(); }
+ }
+ }
+
+
+ /**
+ * Copy the specified srcfile to outfile using FileChannel direct
+ * transfer.
+ */
+ public static void niocopyfile(File srcfile,File outfile)
+ throws IOException
+ {
+ if(!srcfile.exists()) {
+ throw new IOException("copyfile srcfile " + srcfile +
+ " does not exist."); }
+ if(!outfile.exists()) {
+ outfile.createNewFile(); }
+ FileChannel fcSrc=null;
+ FileChannel fcOut=null;
+ try {
+ fcSrc=new FileInputStream(srcfile).getChannel();
+ fcOut=new FileOutputStream(outfile).getChannel();
+ fcOut.transferFrom(fcSrc,0,fcSrc.size());
+ } finally {
+ if(fcSrc!=null) {
+ fcSrc.close(); }
+ if(fcOut!=null) {
+ fcOut.close(); }
}
}
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