org.osmdroid.mtp.util.FolderZipper Maven / Gradle / Ivy

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// Created by plusminus on 2:17:46 AM - Mar 6, 2009
package org.osmdroid.mtp.util;

import org.osmdroid.tileprovider.util.StreamUtils;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class FolderZipper {
    // ===========================================================
    // Constants
    // ===========================================================

    // ===========================================================
    // Fields
    // ===========================================================

    // ===========================================================
    // Constructors
    // ===========================================================

    // ===========================================================
    // Getter & Setter
    // ===========================================================

    // ===========================================================
    // Methods from SuperClass/Interfaces
    // ===========================================================

    // ===========================================================
    // Methods
    // ===========================================================

    public static void zipFolderToFile(final File pDestinationFile, final File pFolderToZip) {
        try {
            //create ZipOutputStream object
            final ZipOutputStream out = new ZipOutputStream(new FileOutputStream(pDestinationFile));

            String baseName = pFolderToZip.getParent();
            if (baseName == null)
                baseName = "";

            addFolderToZip(pFolderToZip, out, baseName);

            StreamUtils.closeStream(out);
        } catch (final FileNotFoundException e) {
            e.printStackTrace();
        } catch (final IOException e) {
            e.printStackTrace();
        }
    }


    private static void addFolderToZip(final File folder, final ZipOutputStream zip, final String baseName) throws IOException {
        final File[] files = folder.listFiles();
        /* For each child (subdirectory/child-file). */
        for (final File file : files) {
            if (file.isDirectory()) {
                /* If the file is a folder, do recursrion with this folder.*/
                addFolderToZip(file, zip, baseName);
            } else {
                /* Otherwise zip it as usual. */
                String name = file.getPath().substring(baseName.length());
                if (name.startsWith(File.separator))
                    name = name.substring(1);
                System.out.println(name + " added");
                final ZipEntry zipEntry = new ZipEntry(name);
                zip.putNextEntry(zipEntry);
                final FileInputStream fileIn = new FileInputStream(file);
                StreamUtils.copy(fileIn, zip);
                StreamUtils.closeStream(fileIn);
                zip.closeEntry();
            }
        }
    }

    // ===========================================================
    // Inner and Anonymous Classes
    // ===========================================================

}