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updated copy() method to copy directories 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@979216 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Davies 2010-07-26 09:52:17 +00:00
parent 5f400b3853
commit 0004917cd8
1 changed files with 68 additions and 0 deletions
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68
activemq-core/src/main/java/org/apache/activemq/util/IOHelper.java
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@ -20,9 +20,12 @@ import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
/**
* @version $Revision$
@ -150,6 +153,71 @@ public final class IOHelper {
}
public static void copyFile(File src, File dest) throws IOException {
copyFile(src,dest,null);
}
public static void copyFile(File src, File dest,FilenameFilter filter) throws IOException {
if (src.getCanonicalPath().equals(dest.getCanonicalPath()) == false) {
if (src.isDirectory()) {
if (dest.isDirectory()) {
mkdirs(dest);
List<File> list = getFiles(src,filter);
for (File f : list) {
if (f.isFile()) {
File target = new File(getCopyParent(src, dest, f), f.getName());
copySingleFile(f, target);
}
}
}
} else if (dest.isDirectory()) {
mkdirs(dest);
File target = new File(dest, src.getName());
copySingleFile(src, target);
} else {
copySingleFile(src, dest);
}
}
}
static File getCopyParent(File from, File to, File src) {
File result = null;
File parent = src.getParentFile();
String fromPath = from.getAbsolutePath();
if (parent.getAbsolutePath().equals(fromPath)) {
//one level down
result = to;
}else {
String parentPath = parent.getAbsolutePath();
String path = parentPath.substring(fromPath.length());
result = new File(to.getAbsolutePath()+File.separator+path);
}
return result;
}
static List<File> getFiles(File dir,FilenameFilter filter){
List<File> result = new ArrayList<File>();
getFiles(dir,result,filter);
return result;
}
static void getFiles(File dir,List<File> list,FilenameFilter filter) {
if (!list.contains(dir)) {
list.add(dir);
String[] fileNames=dir.list(filter);
for (int i =0; i < fileNames.length;i++) {
File f = new File(dir,fileNames[i]);
if (f.isFile()) {
list.add(f);
}else {
getFiles(dir,list,filter);
}
}
}
}
public static void copySingleFile(File src, File dest) throws IOException {
FileInputStream fileSrc = new FileInputStream(src);
FileOutputStream fileDest = new FileOutputStream(dest);
copyInputStream(fileSrc, fileDest);