org.docx4j.template.utils.WmlZipUtils.java Source code

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Here is the source code for org.docx4j.template.utils.WmlZipUtils.java

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/*
 * Copyright (c) 2018, vindell (https://github.com/vindell).
 *
 * 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.
 */
package org.docx4j.template.utils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;

/**
 * To change this template, choose Tools | Templates and open the template in the editor.
 * @author <a href="https://github.com/vindell">vindell</a>
 */
public class WmlZipUtils {

    private static final ZipFolderHelper helper = new ZipFolderHelper();
    private static final int BUFFER = 1024;

    public static void zipDir(String dirToZip, String destFile, boolean includeInitialFolder) throws Exception {
        zipDir(new File(dirToZip), new File(destFile), includeInitialFolder);
    }

    public static void zipDir(String dirToZip, String destFile) throws Exception {
        zipDir(new File(dirToZip), new File(destFile));
    }

    public static void zipDir(File dirToZip, File destFile) throws Exception {
        zipDir(dirToZip, destFile, true);
    }

    public static void zipDir(File dirToZip, File destFile, boolean includeInitialFolder) throws Exception {
        OutputStream output = null;
        try {
            output = new FileOutputStream(destFile);
            helper.setIncludeInitialFolder(includeInitialFolder);
            helper.process(dirToZip, output);
        } finally {
            IOUtils.closeQuietly(output);
        }
    }

    public static void zipDir(File dirToZip, OutputStream output, boolean includeInitialFolder) throws Exception {
        helper.setIncludeInitialFolder(includeInitialFolder);
        helper.process(dirToZip, output);
    }

    public static void unzip(String sourceFile, String outputDir) throws IOException {
        unzip(new File(sourceFile), new File(outputDir));
    }

    public static void unzip(File sourceFile, File outputDir) throws ZipException, IOException {
        FileUtils.deleteDirectory(outputDir);
        ZipFile zipFile = new ZipFile(sourceFile);
        Enumeration<?> files = zipFile.entries();
        File f = null;
        FileOutputStream fos = null;
        while (files.hasMoreElements()) {
            try {
                ZipEntry entry = (ZipEntry) files.nextElement();
                InputStream eis = zipFile.getInputStream(entry);
                byte[] buffer = new byte[BUFFER];
                int bytesRead = 0;
                f = new File(outputDir.getAbsolutePath() + File.separator + entry.getName());
                if (entry.isDirectory()) {
                    f.mkdirs();
                    continue;
                } else {
                    f.getParentFile().mkdirs();
                    f.createNewFile();
                }
                fos = new FileOutputStream(f);
                while ((bytesRead = eis.read(buffer)) != -1) {
                    fos.write(buffer, 0, bytesRead);
                }
            } finally {
                if (fos != null) {
                    try {
                        fos.close();
                    } catch (IOException e) {
                        // ignore
                    }
                }
            }
        }
    }

}