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import cn.hutool.core.date.DateUtil;
import cn.hutool.core.date.TimeInterval;
import net.sf.sevenzipjbinding.*;
import net.sf.sevenzipjbinding.impl.RandomAccessFileInStream;
import net.sf.sevenzipjbinding.impl.VolumedArchiveInStream;
import org.apache.commons.compress.archivers.sevenz.SevenZArchiveEntry;
import org.apache.commons.compress.archivers.sevenz.SevenZFile;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.text.DecimalFormat;
import java.util.*;
import java.util.concurrent.atomic.AtomicLong;
public class Test {
static List<String> failedList = new ArrayList<>();
public static void main(String[] args) throws IOException, SevenZipNativeInitializationException {
// test , sevenzipjbinding 快12.5倍
// sevenzipjbinding();
// commonsCompress();
//统计文件夹中7z和7z.001文件的压缩前大小
File basePath = new File("\\\\tsclient\\I");
System.out.println(basePath.listFiles());
long totalSize = foreachDir(basePath);
System.out.println(totalSize + " , " + fileSizeConver(totalSize));
System.out.println(failedList);
}
public static long foreachDir(File basePath) {
AtomicLong totalSize = new AtomicLong();
File[] files = basePath.listFiles();
Arrays.stream(files).forEach(file -> {
if (file.isDirectory()) {
if (file.getName().startsWith("System ") || file.getName().startsWith("$")) {
return;
}
System.out.println(file.getAbsolutePath());
totalSize.addAndGet(foreachDir(file));
} else {
if (file.getName().endsWith("7z") || file.getName().endsWith(".7z.001")) {
try {
System.out.println(file.getAbsolutePath());
totalSize.addAndGet(getUnCompressSize(file));
} catch (Exception e) {
e.printStackTrace();
failedList.add(file.getAbsolutePath());
}
}
}
});
return totalSize.get();
}
public static long getUnCompressSize(File file) throws Exception {
IInArchive archive;
ArchiveOpenVolumeCallback archiveOpenVolumeCallback = null;
RandomAccessFile randomAccessFile = null;
if (file.getName().endsWith("7z")) {
randomAccessFile = new RandomAccessFile(file, "r");
archive = SevenZip.openInArchive(ArchiveFormat.SEVEN_ZIP, // null - autodetect
new RandomAccessFileInStream(randomAccessFile));
} else {
archiveOpenVolumeCallback = new ArchiveOpenVolumeCallback();
archive = SevenZip.openInArchive(ArchiveFormat.SEVEN_ZIP,
new VolumedArchiveInStream(file.getAbsolutePath(),
archiveOpenVolumeCallback));
}
int numberOfItems = archive.getNumberOfItems();
long totalSize = 0;
for (int i = 0; i < numberOfItems; i++) {
String name = archive.getStringProperty(i, PropID.PATH);
Long size = (Long) archive.getProperty(i, PropID.SIZE);
System.out.println(name + " => " + size + " , " + fileSizeConver(size));
totalSize += size;
}
// System.out.println(totalSize);
System.out.println(file.getName() + " total => " + fileSizeConver(totalSize));
archive.close();
if (randomAccessFile != null)
randomAccessFile.close();
if (archiveOpenVolumeCallback != null)
archiveOpenVolumeCallback.close();
return totalSize;
}
public static void sevenzipjbinding() throws IOException, SevenZipNativeInitializationException {
//SevenZip.initSevenZipFromPlatformJAR();
TimeInterval timer = DateUtil.timer();
File f = new File("\\\\tsclient\\I\\OB\\2021/20210104.7z");
IInArchive archive;
RandomAccessFile randomAccessFile;
randomAccessFile = new RandomAccessFile(f, "r");
archive = SevenZip.openInArchive(ArchiveFormat.SEVEN_ZIP, // null - autodetect
new RandomAccessFileInStream(randomAccessFile));
int numberOfItems = archive.getNumberOfItems();
// 方式一
// ISimpleInArchive simpleInterface = archive.getSimpleInterface();
// simpleInterface.getArchiveItem(0).getSize();
//方拾贰
long totalSize = 0;
for (int i = 0; i < numberOfItems; i++) {
String name = archive.getStringProperty(i, PropID.PATH);
Long size = (Long) archive.getProperty(i, PropID.SIZE);
System.out.println(name + " => " + size);
totalSize += size;
}
System.out.println(totalSize);
System.out.println(fileSizeConver(totalSize));
archive.close();
randomAccessFile.close();
System.out.println(numberOfItems);
System.out.println(timer.interval());
}
public static void commonsCompress() throws IOException {
TimeInterval timer = DateUtil.timer();
long totalSize = 0;
File f = new File("\\\\tsclient\\I\\OB\\2021/20210104.7z");
SevenZFile sevenZFile = new SevenZFile(f);
final Iterable<SevenZArchiveEntry> entries = sevenZFile.getEntries();
for (SevenZArchiveEntry entry : entries) {
System.out.println(entry.getName());
// System.out.println(entry.getCompressedSize()); // 文件压缩后大小
System.out.println(entry.getSize()); // 文件大小
totalSize += entry.getSize();
}
System.out.println(totalSize);
System.out.println(fileSizeConver(totalSize));
sevenZFile.close();
System.out.println(timer.interval());
}
private static String fileSizeConver(long fileS) {
DecimalFormat df = new DecimalFormat("#.00");
String fileSizeString = "";
String wrongSize = "0B";
if (fileS == 0) {
return wrongSize;
}
if (fileS < 1024) {
fileSizeString = df.format((double) fileS) + "B";
} else if (fileS < 1048576) {
fileSizeString = df.format((double) fileS / 1024) + "KB";
} else if (fileS < 1073741824) {
fileSizeString = df.format((double) fileS / 1048576) + "MB";
} else {
fileSizeString = df.format((double) fileS / 1073741824) + "GB";
}
return fileSizeString;
}
private static class ArchiveOpenVolumeCallback
implements IArchiveOpenVolumeCallback {
/**
* Cache for opened file streams
*/
private Map<String, RandomAccessFile> openedRandomAccessFileList =
new HashMap<String, RandomAccessFile>();
/**
* This method doesn't needed, if using with VolumedArchiveInStream
* and pass the name of the first archive in constructor.
* (Use two argument constructor)
*
* @see IArchiveOpenVolumeCallback#getProperty(PropID)
*/
public Object getProperty(PropID propID) throws SevenZipException {
return null;
}
/**
* The name of the required volume will be calculated out of the
* name of the first volume and volume index. If you need
* need volume index (integer) you will have to parse filename
* and extract index.
*
* <pre>
* int index = filename.substring(filename.length() - 3,
* filename.length());
* </pre>
*/
public IInStream getStream(String filename) throws SevenZipException {
try {
// We use caching of opened streams, so check cache first
RandomAccessFile randomAccessFile = openedRandomAccessFileList
.get(filename);
if (randomAccessFile != null) { // Cache hit.
// Move the file pointer back to the beginning
// in order to emulating new stream
randomAccessFile.seek(0);
return new RandomAccessFileInStream(randomAccessFile);
}
// Nothing useful in cache. Open required volume.
randomAccessFile = new RandomAccessFile(filename, "r");
// Put new stream in the cache
openedRandomAccessFileList.put(filename, randomAccessFile);
return new RandomAccessFileInStream(randomAccessFile);
} catch (FileNotFoundException fileNotFoundException) {
// Required volume doesn't exist. This happens if the volume:
// 1. never exists. 7-Zip doesn't know how many volumes should
// exist, so it have to try each volume.
// 2. should be there, but doesn't. This is an error case.
// Since normal and error cases are possible,
// we can't throw an error message
return null; // We return always null in this case
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Close all opened streams
*/
void close() throws IOException {
for (RandomAccessFile file : openedRandomAccessFileList.values()) {
file.close();
}
}
}
}
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