/**
* Checks if a given file exists and, if not, create it by copying a default template from
* resources; used to create default conf files.
*
* @param file The path of the file that needs to exist
* @param template The path of the template for the file
*/
public static void ensureFileExists(final String file, final String template) {
if (LAUNCHED_FROM_JAR && !Files.exists(Paths.get(file))) {
if (Debug.on) printDebug("[Meta] " + file + " does not exist: creating a default one.");
InputStream stream = Meta.class.getResourceAsStream(template);
if (stream == null) {
printDebug(
"[ WARNING ] template for "
+ template
+ " not found. Won't create a default "
+ file
+ ".");
} else {
int readBytes;
byte[] buffer = new byte[4096];
try (OutputStream outStream = new FileOutputStream(new File(file))) {
while ((readBytes = stream.read(buffer)) > 0) {
outStream.write(buffer, 0, readBytes);
}
if (Debug.on)
printDebug("[Meta] created default file " + file + " from " + template + ".");
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
stream.close();
} catch (IOException ignore) {
}
}
}
} else {
if (Meta.LAUNCHED_FROM_JAR && Debug.on) printDebug("[Meta] file exists: " + file + ".");
}
}
private void uploadFile(String relPath, Path fullPath) throws DropboxException, IOException {
if (!fullPath.toFile().exists()) return;
/*if(api.metadata(relPath, 1, null, false, null).rev == MetaHandler.getRev(relPath)){
logger.debug("File "+relPath+" not changed");
return;
}*/
VOSync.debug("Uploading " + relPath);
String rev = MetaHandler.getRev(relPath);
InputStream inp = new FileInputStream(fullPath.toFile());
Entry fileEntry = api.putFile(relPath, inp, fullPath.toFile().length(), rev, null);
inp.close();
Path destFilePath =
FileSystems.getDefault()
.getPath(fullPath.toFile().getParentFile().getPath(), fileEntry.fileName());
MetaHandler.setFile(relPath, destFilePath.toFile(), fileEntry.rev);
logger.debug(relPath + " put to db");
// if the file was renamed, move the file on disk and download the current from server
if (!fileEntry.fileName().equals(fullPath.toFile().getName())) {
logger.error(fileEntry.fileName() + " != " + fullPath.toFile().getName());
fullPath.toFile().renameTo(destFilePath.toFile());
}
}
public static long checksumBufferedInputStream(Path filename) throws IOException {
try (InputStream in = new BufferedInputStream(Files.newInputStream(filename))) {
CRC32 crc = new CRC32();
int c;
while ((c = in.read()) != -1) crc.update(c);
return crc.getValue();
}
}
void copy(InputStream in, File dest) throws IOException {
dest.getParentFile().mkdirs();
OutputStream out = new BufferedOutputStream(new FileOutputStream(dest));
try {
byte[] data = new byte[8192];
int n;
while ((n = in.read(data, 0, data.length)) > 0) out.write(data, 0, n);
} finally {
out.close();
in.close();
}
}
// computes simple hash of the given file
static int computeHash(Path file) throws IOException {
int h = 0;
try (InputStream in = newInputStream(file)) {
byte[] buf = new byte[1024];
int n;
do {
n = in.read(buf);
for (int i = 0; i < n; i++) {
h = 31 * h + (buf[i] & 0xff);
}
} while (n > 0);
}
return h;
}
static void testCopyInputStreamToFile(int size) throws IOException {
Path tmpdir = createTempDirectory("blah");
Path source = tmpdir.resolve("source");
Path target = tmpdir.resolve("target");
try {
boolean testReplaceExisting = rand.nextBoolean();
// create source file
byte[] b = new byte[size];
rand.nextBytes(b);
write(source, b);
// target file might already exist
if (testReplaceExisting && rand.nextBoolean()) {
write(target, new byte[rand.nextInt(512)]);
}
// copy from stream to file
InputStream in = new FileInputStream(source.toFile());
try {
long n;
if (testReplaceExisting) {
n = copy(in, target, StandardCopyOption.REPLACE_EXISTING);
} else {
n = copy(in, target);
}
assertTrue(in.read() == -1); // EOF
assertTrue(n == size);
assertTrue(size(target) == size);
} finally {
in.close();
}
// check file
byte[] read = readAllBytes(target);
assertTrue(Arrays.equals(read, b));
} finally {
deleteIfExists(source);
deleteIfExists(target);
delete(tmpdir);
}
}
public static byte[] input(InputStream inputStream) {
try (InputStream is = inputStream) {
ByteBuf buf = ByteBuf.create(DEFAULT_BUFFER_SIZE);
byte[] bytes = new byte[DEFAULT_BUFFER_SIZE];
int read = -2;
while (read != -1) {
read = inputStream.read(bytes);
if (read == DEFAULT_BUFFER_SIZE) {
buf.add(bytes);
} else if (read > 0) {
buf.add(bytes, read);
}
}
return buf.toBytes();
} catch (Exception ex) {
return Exceptions.handle(byte[].class, ex);
}
}
public String generateMD5(File f) throws IOException {
InputStream fis = new BufferedInputStream(new FileInputStream(f));
String s = this.generateMD5(fis);
fis.close();
return s;
}