FileUtilities.java

package com.ibm.streamsx.topology.internal.file;

import java.io.File;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.FileVisitor;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;

import com.ibm.streamsx.topology.internal.context.remote.ZippedToolkitRemoteContext;

public class FileUtilities {
    
    /**
     * Delete a directory and all of its files.
     */
    public static void deleteDirectory(File dir) throws IOException {

        Files.walkFileTree(dir.toPath(), new FileVisitor<Path>() {

            @Override
            public FileVisitResult preVisitDirectory(Path dir,
                    BasicFileAttributes attrs) throws IOException {
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult visitFile(Path file,
                    BasicFileAttributes attrs) throws IOException {
                file.toFile().delete();
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult visitFileFailed(Path file, IOException exc)
                    throws IOException {
                return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException exc)
                    throws IOException {
                dir.toFile().delete();
                return FileVisitResult.CONTINUE;
            }
        });
    }

}