Merge Argeo Util and parts of Argeo JCR in Argeo Core.

[lgpl/argeo-commons.git] / org.argeo.core / src / org / argeo / fs / FsUtils.java

diff --git a/org.argeo.core/src/org/argeo/fs/FsUtils.java b/org.argeo.core/src/org/argeo/fs/FsUtils.java
new file mode 100644 (file)
index 0000000..c96f56e
--- /dev/null
+++ b/org.argeo.core/src/org/argeo/fs/FsUtils.java
@@ -0,0 +1,58 @@
+package org.argeo.fs;
+
+import java.io.IOException;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
+
+/** Utilities around the standard Java file abstractions. */
+public class FsUtils {
+       /** Sync a source path with a target path. */
+       public static void sync(Path sourceBasePath, Path targetBasePath) {
+               sync(sourceBasePath, targetBasePath, false);
+       }
+
+       /** Sync a source path with a target path. */
+       public static void sync(Path sourceBasePath, Path targetBasePath, boolean delete) {
+               sync(new BasicSyncFileVisitor(sourceBasePath, targetBasePath, delete, true));
+       }
+
+       public static void sync(BasicSyncFileVisitor syncFileVisitor) {
+               try {
+                       Files.walkFileTree(syncFileVisitor.getSourceBasePath(), syncFileVisitor);
+               } catch (Exception e) {
+                       throw new RuntimeException("Cannot sync " + syncFileVisitor.getSourceBasePath() + " with "
+                                       + syncFileVisitor.getTargetBasePath(), e);
+               }
+       }
+
+       /** Deletes this path, recursively if needed. */
+       public static void delete(Path path) {
+               try {
+                       Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
+                               @Override
+                               public FileVisitResult postVisitDirectory(Path directory, IOException e) throws IOException {
+                                       if (e != null)
+                                               throw e;
+                                       Files.delete(directory);
+                                       return FileVisitResult.CONTINUE;
+                               }
+
+                               @Override
+                               public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+                                       Files.delete(file);
+                                       return FileVisitResult.CONTINUE;
+                               }
+                       });
+               } catch (IOException e) {
+                       throw new RuntimeException("Cannot delete " + path, e);
+               }
+       }
+
+       /** Singleton. */
+       private FsUtils() {
+       }
+
+}