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/*
* Copyright 2017 Huawei Technologies Co., Ltd.
*
* 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.onap.vnfsdk.functest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public final class FileUtil {
public static final Logger LOG = LoggerFactory.getLogger(FileUtil.class);
private static final int BUFFER_SIZE = 2 * 1024 * 1024;
private static final int TRY_COUNT = 3;
private FileUtil() {
}
/**
* Create directory.
*
* @param dir directory to create
* @return boolean
*/
public static boolean createDirectory(String dir) {
File folder = new File(dir);
int tryCount = 0;
while (tryCount < TRY_COUNT) {
tryCount++;
if (!folder.exists() && !folder.mkdirs()) {
continue;
} else {
return true;
}
}
return folder.exists();
}
/**
* delete file.
*
* @param file the file to delete
* @return boolean
*/
public static boolean deleteFile(File file) {
String hintInfo = file.isDirectory() ? "dir " : "file ";
boolean isFileDeleted = file.delete();
boolean isFileExist = file.exists();
if (!isFileExist) {
if (isFileDeleted) {
LOG.info("delete " + hintInfo + file.getAbsolutePath());
} else {
isFileDeleted = true;
LOG.info("file not exist. no need delete " + hintInfo + file.getAbsolutePath());
}
} else {
LOG.info("fail to delete " + hintInfo + file.getAbsolutePath());
}
return isFileDeleted;
}
/**
* unzip zip file.
*
* @param zipFileName file name to zip
* @param extPlace extPlace
* @return unzip file name
* @throws IOException e1
*/
public static List<String> unzip(String zipFileName, String extPlace) throws IOException {
ArrayList<String> unzipFileNams = new ArrayList<String>();
try (ZipFile zipFile = new ZipFile(zipFileName)) {
Enumeration<?> fileEn = zipFile.entries();
byte[] buffer = new byte[BUFFER_SIZE];
while (fileEn.hasMoreElements()) {
ZipEntry entry = (ZipEntry) fileEn.nextElement();
if (entry.isDirectory()) {
continue;
}
File file = new File(extPlace, entry.getName());
if (!file.getParentFile().exists()) {
createDirectory(file.getParentFile().getAbsolutePath());
}
try (InputStream input = zipFile.getInputStream(entry);
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file))) {
while (true) {
int length = input.read(buffer);
if (length == -1) {
break;
}
bos.write(buffer, 0, length);
}
unzipFileNams.add(file.getAbsolutePath());
} catch (Exception ex) {
LOG.error("close InputStream error!: " + ex);
LOG.error("close OutputStream error!: " + ex);
}
}
} catch (Exception ex) {
LOG.error("close ZipFile error!: " + ex);
throw new IOException(ex);
}
return unzipFileNams;
}
public static String[] getDirectory(String directory) {
File file = new File(directory);
return file.list(new FilenameFilter() {
public boolean accept(File current, String name) {
return new File(current, name).isDirectory();
}
});
}
public static Boolean checkFileExist(String filePath) {
File file = new File(filePath);
return file.exists();
}
public static Boolean deleteFile(String filePath) {
File file = new File(filePath);
if (file.exists()) {
return file.delete();
}
return true;
}
public static byte[] convertZipFiletoByteArray(String filename) {
File file = new File(filename);
byte[] emptyArray = new byte[0];
if (!file.exists()) {
return emptyArray;
}
byte[] byteArrayFile = new byte[(int) file.length()];
try (FileInputStream fileInputStream = new FileInputStream(filename)) {
int value = fileInputStream.read(byteArrayFile);
LOG.debug("Number of bytes read from fileInputStream = " + value);
} catch (Exception e) {
LOG.error("convertZipFiletoByteArray: " + e);
}
return byteArrayFile;
}
/**
* Interface to Delete Directory
* <br/>
*
* @param directory
* @since VNFSDK 2.0
*/
public static void deleteDirectory(String directory) {
File file = new File(directory);
if (!file.exists()) {
return;
}
if (file.isDirectory()) {
for (File sub : file.listFiles()) {
deleteFile(sub);
}
}
file.delete();
}
}
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