public static void main(String[] args) throws IOException {
Closer closer = Closer.create();
// copy a file
File origin = new File("join_temp");
File copy = new File("target_temp");
try {
BufferedReader reader = new BufferedReader(new FileReader("join_temp"));
BufferedWriter writer = new BufferedWriter(new FileWriter("target_temp"));
closer.register(reader);
closer.register(writer);
String line;
while ((line = reader.readLine()) != null) {
writer.write(line);
}
} catch (IOException e) {
throw closer.rethrow(e);
} finally {
closer.close();
}
Files.copy(origin, copy);
File moved = new File("moved");
// moving renaming
Files.move(copy, moved);
// working files as string
List<String> lines = Files.readLines(origin, Charsets.UTF_8);
HashCode hashCode = Files.hash(origin, Hashing.md5());
System.out.println(hashCode);
// file write and append
String hamlet = "To be, or not to be it is a question\n";
File write_and_append = new File("write_and_append");
Files.write(hamlet, write_and_append, Charsets.UTF_8);
Files.append(hamlet, write_and_append, Charsets.UTF_8);
// write_and_append.deleteOnExit();
Files.write("OverWrite the file", write_and_append, Charsets.UTF_8);
// ByteSource ByteSink
ByteSource fileBytes = Files.asByteSource(write_and_append);
byte[] readBytes = fileBytes.read();
// equals to pre line -> Files.toByteArray(write_and_append) == readBytes
ByteSink fileByteSink = Files.asByteSink(write_and_append);
fileByteSink.write(Files.toByteArray(write_and_append));
BaseEncoding base64 = BaseEncoding.base64();
System.out.println(base64.encode("123456".getBytes()));
}
public static void main(String args[]) {
try {
aServer asr = new aServer();
// file channel.
FileInputStream is = new FileInputStream("");
is.read();
FileChannel cha = is.getChannel();
ByteBuffer bf = ByteBuffer.allocate(1024);
bf.flip();
cha.read(bf);
// Path Paths
Path pth = Paths.get("", "");
// Files some static operation.
Files.newByteChannel(pth);
Files.copy(pth, pth);
// file attribute, other different class for dos and posix system.
BasicFileAttributes bas = Files.readAttributes(pth, BasicFileAttributes.class);
bas.size();
} catch (Exception e) {
System.err.println(e);
}
System.out.println("hello ");
}
/** Puts library to temp dir and loads to memory */
private static void loadLib(String name) {
Path sourcePath = Paths.get(LIBPATH, name);
try {
Path libPath = Files.copy(sourcePath, tempPath, StandardCopyOption.REPLACE_EXISTING);
System.load(libPath.toString());
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws IOException {
Path jarfile = Paths.get("/home/punki/test.zip");
FileSystem fs = FileSystems.newFileSystem(jarfile, null);
Path path = fs.getPath("tekst.txt");
System.out.println("path.toString() = " + path.toString());
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
Files.copy(path, outputStream);
System.out.println("bytes = " + new String(outputStream.toByteArray()));
List<String> lines = Files.readAllLines(path, Charset.defaultCharset());
for (String line : lines) {
System.out.println("line = " + line);
}
}
public static void createHierarchy(
ArrayList<Map<String, String>> data, String source, String destOriginal) {
cycle = 0;
for (Map<String, String> map : data) {
String dest = destOriginal + "\\" + "Cycle" + cycle;
File dir = new File(dest);
if (!dir.exists()) {
dir.mkdir();
}
for (Map.Entry<String, String> entry : map.entrySet()) {
String dirName = entry.getKey().replaceAll(":", "_");
File sourceDir = new File(source);
File subDir = new File(dest + "\\" + dirName);
if (!subDir.exists()) {
subDir.mkdir();
}
String[] hitValTokens = entry.getValue().split(",");
for (final String hitVal : hitValTokens) {
File[] matchingFiles =
sourceDir.listFiles(
new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.equals(hitVal + ".jpg");
}
});
if (matchingFiles != null && matchingFiles.length > 0) {
try {
Path FROM = Paths.get(source + "\\" + hitVal + ".jpg");
Path TO = Paths.get(dest + "\\" + dirName + "\\" + hitVal + ".jpg");
// overwrite existing file, if exists
CopyOption[] options =
new CopyOption[] {
StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.COPY_ATTRIBUTES
};
Files.copy(FROM, TO, options);
} catch (IOException ex) {
Logger.getLogger(FolderHeirarchyGenerator.class.getName())
.log(Level.SEVERE, null, ex);
}
}
}
}
cycle++;
}
}
private static void extractAndLoadNativeLib(String nativeLibName, Path target) {
// System.err.println("loading "+nativeLibName);
final Path path = Paths.get(target.toString(), nativeLibName);
if (!path.toFile().exists()) {
try (InputStream is =
CudaEngine.class
.getClassLoader()
.getResourceAsStream("/lib/" + nativeLibName)) { // TODO TK property for lib dir
Files.copy(is, path);
} catch (IOException e) {
e.printStackTrace();
} catch (NullPointerException e) { // TODO find a way to do it instead of eclipse
final Path eclipsePath = FileSystems.getDefault().getPath("lib", nativeLibName);
try {
Files.copy(eclipsePath, path);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
System.load(path.toString());
// System.load(nativeLibName);
}
// void compileKernelsPtx()
static void compileKernelsPtx() throws IOException {
if (!new File(ioTmpDir, PHEROMONES_CU + ".ptx").exists()) { // TODO externalize
try (InputStream is =
CudaEngine.class.getResourceAsStream(
"/turtlekit/cuda/kernels/" + PHEROMONES_CU + ".cu")) {
final Path path = Paths.get(ioTmpDir, PHEROMONES_CU + ".cu");
try {
Files.copy(is, path);
} catch (FileAlreadyExistsException e) {
}
System.err.println("--------------- Compiling ptx ----------------------");
KernelLauncher.create(
path.toString(),
Kernel.DIFFUSION_TO_TMP.name(),
false,
"--use_fast_math",
"--prec-div=false"); // ,"--gpu-architecture=sm_20");
} catch (IOException e) {
throw e;
}
}
}
public void downloadFlat(String artifact, String copyToDir) {
OutputBouble bouble = OutputBouble.push();
try {
Artifact theArtifact = new DefaultArtifact(artifact);
HashSet<Artifact> downloadThese = new HashSet<Artifact>();
downloadThese.add(theArtifact);
Stack<Artifact> downloadDependenciesOfThese = new Stack<Artifact>();
downloadDependenciesOfThese.add(theArtifact);
while (!downloadDependenciesOfThese.isEmpty()) {
Artifact getDependenciesOfThis = downloadDependenciesOfThese.pop();
List<Artifact> dependencies =
dependencyManager.getDirectDependencies(getDependenciesOfThis);
for (Artifact a : dependencies) {
if (!downloadThese.contains(a)) {
downloadThese.add(a);
downloadDependenciesOfThese.add(a);
}
}
}
File destination = new File(copyToDir);
destination.mkdirs();
for (Artifact a : downloadThese) {
File theFile = getAsFile(a);
Files.copy(theFile.toPath(), new File(destination, theFile.getName()).toPath());
}
} catch (Exception e) {
OutputBouble.reportError(e);
} finally {
bouble.pop();
if (bouble.isError) bouble.writeToParent();
}
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Files.copy(file, toPath.resolve(fromPath.relativize(file)), copyOption);
return FileVisitResult.CONTINUE;
}
public void cnpStart(Path quellOrdner, Path zielOrdner) {
try {
DirectoryStream<Path> qstream = Files.newDirectoryStream(quellOrdner);
for (Path qfile : qstream) {
Path target = Paths.get(zielOrdner.toString() + "/" + qfile.getFileName());
if (abbruch) break;
if (Files.isDirectory(qfile) && !Files.exists(target)) {
Files.createDirectory(target);
textArea.append("Verzeichnis: " + qfile + " wurde erstellt" + System.lineSeparator());
cnpStart(
Paths.get(quellOrdner.toString() + "/" + qfile.getFileName()),
Paths.get(zielOrdner.toString() + "/" + qfile.getFileName()));
} else if (Files.isDirectory(qfile) && Files.exists(target)) {
textArea.append("Wechsle in Verzeichnis: " + qfile + System.lineSeparator());
cnpStart(
Paths.get(quellOrdner.toString() + "/" + qfile.getFileName()),
Paths.get(zielOrdner.toString() + "/" + qfile.getFileName()));
}
// Wenn die Datei noch nicht existiert
else if (!Files.exists(target)) {
textArea.append(
"Datei " + target.toString() + " wurde erstellt" + System.lineSeparator());
Files.copy(qfile, target, StandardCopyOption.REPLACE_EXISTING);
}
// Wenn Datei im Zielverzeichnis schon existiert
else if (Files.exists(target)) {
if (cAUeSchr) {
textArea.append(
"Datei "
+ target.toString()
+ " wird absolut überschrieben"
+ System.lineSeparator());
Files.copy(qfile, target, StandardCopyOption.REPLACE_EXISTING);
} else if (cUeSchr) {
if (checkAlter(
Paths.get(quellOrdner.toString() + "/" + qfile.getFileName()),
Paths.get(zielOrdner.toString() + "/" + qfile.getFileName()))) {
textArea.append(
target.toString()
+ " wird mit neuer Datei überschrieben"
+ System.lineSeparator());
Files.copy(qfile, target, StandardCopyOption.REPLACE_EXISTING);
} else {
textArea.append(
target.toString() + " alte Datei bleibt bestehen" + System.lineSeparator());
}
} else
textArea.append(
target.toString() + " alte Datei bleibt bestehen" + System.lineSeparator());
}
pbCounter++;
progressBar.setValue(pbCounter);
}
qstream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
