org.cirdles.squid.utilities.FileUtilities.java Source code

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Here is the source code for org.cirdles.squid.utilities.FileUtilities.java

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package org.cirdles.squid.utilities;

import com.google.common.io.ByteStreams;
import com.google.common.io.FileWriteMode;
//import com.google.common.io.Files;
import java.io.File;
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;
import java.util.Comparator;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;

/**
 *
 * @author James F. Bowring
 */
public class FileUtilities {

    //    /**
    //     *
    //     * @param directory
    //     * @throws IOException
    //     */
    //    public static void recursiveDelete(Path directory) throws IOException {
    //        Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
    //            @Override
    //            public FileVisitResult visitFile(
    //                    Path file,
    //                    BasicFileAttributes attrs) throws IOException {
    //
    //                Files.delete(file);
    //                return FileVisitResult.CONTINUE;
    //            }
    //
    //            @Override
    //            public FileVisitResult postVisitDirectory(
    //                    Path dir,
    //                    IOException exc) throws IOException {
    //
    //                Files.delete(dir);
    //                return FileVisitResult.CONTINUE;
    //            }
    //        });
    //    }

    public static void recursiveDelete(Path pathToBeDeleted) throws IOException {
        Files.walk(pathToBeDeleted).sorted(Comparator.reverseOrder()).map(Path::toFile).forEach(File::delete);
    }

    public static void unpackZipFile(final File archive, final File targetDirectory)
            throws ZipException, IOException {
        ZipFile zipFile = new ZipFile(archive);
        Enumeration<? extends ZipEntry> entries = zipFile.entries();
        while (entries.hasMoreElements()) {
            final ZipEntry zipEntry = entries.nextElement();
            if (zipEntry.isDirectory()) {
                continue;
            }
            final File targetFile = new File(targetDirectory, zipEntry.getName());
            com.google.common.io.Files.createParentDirs(targetFile);
            ByteStreams.copy(zipFile.getInputStream(zipEntry),
                    com.google.common.io.Files.asByteSink(targetFile, FileWriteMode.APPEND).openStream());
        }
    }
}