public static void main(String[] args) throws Exception {
if (args.length == 0) {
usage();
return;
}
Mode mode = grabMode(args);
System.out.println(mode.getMessage() + " " + args[0]);
File f = new File(args[0]);
if (!f.isFile()) {
System.err.println(f + " doesn't exist or is a directory");
}
SevenZFile archive = new SevenZFile(f);
try {
SevenZArchiveEntry ae;
while ((ae = archive.getNextEntry()) != null) {
mode.takeAction(archive, ae);
}
} finally {
archive.close();
}
}
@Override
public void takeAction(SevenZFile archive, SevenZArchiveEntry entry) throws IOException {
File outFile = new File(entry.getName());
if (entry.isDirectory()) {
if (!outFile.isDirectory() && !outFile.mkdirs()) {
throw new IOException("Cannot create directory " + outFile);
}
System.out.println("created directory " + outFile);
return;
}
System.out.println("extracting to " + outFile);
File parent = outFile.getParentFile();
if (parent != null && !parent.exists() && !parent.mkdirs()) {
throw new IOException("Cannot create " + parent);
}
FileOutputStream fos = new FileOutputStream(outFile);
try {
final long total = entry.getSize();
long off = 0;
while (off < total) {
int toRead = (int) Math.min(total - off, BUF.length);
int bytesRead = archive.read(BUF, 0, toRead);
if (bytesRead < 1) {
throw new IOException(
"reached end of entry "
+ entry.getName()
+ " after "
+ off
+ " bytes, expected "
+ total);
}
off += bytesRead;
fos.write(BUF, 0, bytesRead);
}
} finally {
fos.close();
}
}
