| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.kylin.common.util; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Locale; |
| |
| import org.apache.commons.compress.archivers.ArchiveException; |
| import org.apache.commons.compress.archivers.ArchiveStreamFactory; |
| import org.apache.commons.compress.archivers.examples.Archiver; |
| import org.apache.commons.compress.archivers.examples.Expander; |
| import org.apache.commons.compress.archivers.zip.ZipFile; |
| import org.apache.commons.lang.StringUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ZipFileUtils { |
| |
| private static final Logger logger = LoggerFactory.getLogger(ZipFileUtils.class); |
| |
| private ZipFileUtils() { |
| throw new IllegalStateException("Class ZipFileUtils is an utility class !"); |
| } |
| |
| public static void compressZipFile(String sourceDir, String zipFileName) throws IOException, ArchiveException { |
| if (!validateZipFilename(zipFileName)) { |
| throw new RuntimeException("Zip file must end with .zip"); |
| } |
| Archiver archiver = new Archiver(); |
| archiver.create(ArchiveStreamFactory.ZIP, new File(zipFileName), new File(sourceDir)); |
| } |
| |
| public static void decompressZipfileToDirectory(String zipFileName, File outputFolder) |
| throws IOException, ArchiveException { |
| if (!validateZipFilename(zipFileName)) { |
| throw new RuntimeException("Zip file must end with .zip"); |
| } |
| Expander expander = new Expander(); |
| ZipFile zipFile = new ZipFile(zipFileName); |
| expander.expand(zipFile, outputFolder); |
| } |
| |
| private static boolean validateZipFilename(String filename) { |
| return !StringUtils.isEmpty(filename) && filename.trim().toLowerCase(Locale.ROOT).endsWith(".zip"); |
| } |
| } |