dive4elements/framework: artifacts-common/src/main/java/de/intevation/artifacts/common/utils/FileTools.java comparison

comparison artifacts-common/src/main/java/de/intevation/artifacts/common/utils/FileTools.java @ 364:0723859f776f

Added new FileTools functions to copy files and directories. artifacts/trunk@3627 c6561f87-3c4e-4783-a992-168aeb5c3f6f

author	Ingo Weinzierl <ingo.weinzierl@intevation.de>
date	Mon, 09 Jan 2012 10:44:43 +0000
parents	666417d5781c
children	c489256a188b

comparison

equal deleted inserted replaced

-:4d3298295a64
+:0723859f776f
 import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.OutputStream;
+import java.nio.channels.FileChannel;
 import java.util.Stack;
 import java.util.List;
 import java.util.Set;
 import java.util.HashSet;
 catch (IOException ioe) {}
 }
 }
 out.closeEntry();
 }
+/**
+* Copies a <i>src</i> file to <i>target</i>.
+*
+* @param src A file (not a directory) that should be copied.
+* @param target The destination. This might be a file or a directory.
+*
+* @return true, if <i>src</i> has been successfully copied; otherwise
+* false.
+*/
+public static boolean copyFile(File src, File target)
+throws IOException
+{
+if (src == null || !src.exists()) {
+log.warn("Source file does not exist!");
+return false;
+}
+if (!src.canRead()) {
+log.warn("Cannot read Source file!");
+return false;
+}
+if (src.isDirectory()) {
+log.warn("Source is a directory!");
+return false;
+}
+if (target.isDirectory()) {
+target = new File(target, src.getName());
+}
+FileInputStream  in  = null;
+FileOutputStream out = null;
+try {
+in  = new FileInputStream(src);
+out = new FileOutputStream(target);
+FileChannel inChannel  = in.getChannel();
+FileChannel outChannel = out.getChannel();
+inChannel.transferTo(0l, inChannel.size(), outChannel);
+return true;
+}
+catch (IOException ioe) {
+log.warn(ioe, ioe);
+}
+finally {
+if (in != null) {
+try {
+in.close();
+}
+catch (IOException ioe) { /* do nothing here */ }
+}
+if (out != null) {
+try {
+out.close();
+}
+catch (IOException ioe) { /* do nothing here */ }
+}
+}
+return false;
+}
+/**
+* Copies a directory <i>source</i> to a destination path <i>dest</i>.
+*
+* @param source A directory that should be copied.
+* @param dest A destination directory which is created if it is not
+* existing yet.
+*
+* @return true, if the directory has been successfully copied; otherwise
+* false.
+*/
+public static boolean copyDirectory(final File source, final File dest) {
+if (source == null || !source.exists()) {
+log.warn("Source directory does not exist!");
+return false;
+}
+if (!source.isDirectory()) {
+log.warn("Source is not a directory!");
+return false;
+}
+if (dest == null) {
+log.warn("Destination directory is null!");
+return false;
+}
+if (!dest.exists()) {
+if (!dest.mkdir()) {
+log.warn("Cannot create destination directory!");
+return false;
+}
+}
+File[] children = source.listFiles();
+int    failed   = 0;
+if (children != null && children.length > 0) {
+for (File child: children) {
+if (child.isFile()) {
+try {
+if (!copyFile(child, dest)) {
+failed++;
+}
+}
+catch (IOException ioe) {
+log.warn(ioe, ioe);
+failed++;
+}
+}
+else if (child.isDirectory()) {
+copyDirectory(child, new File(dest, child.getName()));
+}
+}
+}
+log.debug("Failed to copy " + failed + " files.");
+return true;
+}
 }
 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

Mercurial > dive4elements > framework

comparison artifacts-common/src/main/java/de/intevation/artifacts/common/utils/FileTools.java @ 364:0723859f776f