Java Path Create nio createZipFile(final File pathToArchive)

Description

Create an archive containing the path supplied, in a temp file, and all children if the path is a directory.

License

Apache License

Parameter

Parameter	Description
pathToArchive	the path to archive

Exception

Parameter	Description
IOException	if anything goes wrong

Return

the archive

Declaration

public static File createZipFile(final File pathToArchive) throws IOException 

Method Source Code

//package com.java2s;
/*//from  w ww .  j ava  2  s  . c o m
 * Copyright 2014 Apigee Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

public class Main {
    private static final int BUFFER_SIZE = 1024;

    /**
     * Create an archive containing the path supplied, in a temp file, and all children if the path is a directory.
     *
     * @param pathToArchive the path to archive
     *
     * @return the archive
     *
     * @throws IOException if anything goes wrong
     */
    public static File createZipFile(final File pathToArchive) throws IOException {
        if (pathToArchive == null) {
            throw new RuntimeException("The path to archive cannot be null");
        } else if (!pathToArchive.exists()) {
            // This should never happen
            throw new RuntimeException("The path to archive does not exist");
        }

        final File archive = File.createTempFile(UUID.randomUUID().toString(), ".zip");

        // Create archive
        try (final FileOutputStream fos = new FileOutputStream(archive);
                final ZipOutputStream zos = new ZipOutputStream(fos)) {
            final String entryBase = pathToArchive.getParentFile().getPath() + File.separator;
            Files.walkFileTree(pathToArchive.toPath(), new SimpleFileVisitor<Path>() {

                /**
                 * {@inheritDoc}
                 */
                @Override
                public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs)
                        throws IOException {
                    try (final FileInputStream fis = new FileInputStream(file.toFile())) {
                        final byte[] buffer = new byte[BUFFER_SIZE];

                        zos.putNextEntry(new ZipEntry(file.toAbsolutePath().toString().replace(entryBase, "")));

                        int length;

                        while ((length = fis.read(buffer)) > 0) {
                            zos.write(buffer, 0, length);
                        }

                        zos.closeEntry();
                    }

                    return super.visitFile(file, attrs);
                }

            });
        }

        return archive;
    }
}

Related

1. createTempPath(String prefix, String suffix)
2. createTmpDir(Path tmpDir, String prefix)
3. createUniqueFilePath(final String directory, final String baseName, final String suffix)
4. createUrlQuietly(Path path)
5. createZipArchive(final Path sourceDir, final Path destFile)
6. createZipFileSystem(Path path)
7. createZipFileSystem(Path zipFile)
8. createZipFs(Path path)
9. createZkNodeName(String zkRoot, Path root, Path file)