// Send File
public void sendFile(String chunkName) throws IOException {
OutputStream os = null;
String currentDir = System.getProperty("user.dir");
chunkName = currentDir + "/src/srcFile/" + chunkName;
File myFile = new File(chunkName);
byte[] arrby = new byte[(int) myFile.length()];
try {
FileInputStream fis = new FileInputStream(myFile);
BufferedInputStream bis = new BufferedInputStream(fis);
bis.read(arrby, 0, arrby.length);
os = csocket.getOutputStream();
System.out.println("Sending File.");
os.write(arrby, 0, arrby.length);
os.flush();
System.out.println("File Sent.");
// os.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
// os.close();
}
}
// Doesn't really need to be runnable
public void run() {
for (; ; ) {
try {
dispatch();
} catch (IOException x) {
x.printStackTrace();
}
}
}
// send a message to the output stream
void sendMessage(String msg) {
try {
out.writeObject(msg);
out.flush();
System.out.println("Send message: " + msg);
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
@Override
public void run() {
try {
out = new ObjectOutputStream(csocket.getOutputStream());
out.flush();
in = new ObjectInputStream(csocket.getInputStream());
// Look for chunks
String currentDir = System.getProperty("user.dir");
File folder = new File(currentDir + "/src/srcFile");
File[] listOfFiles = folder.listFiles();
int fileCount = 0;
OutputStream os;
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()
&& listOfFiles[i]
.getName()
.toLowerCase()
.contains("chunk")) { // 0 1 10 11 12 13 14 2 20 21 22 23 3 4 5 ....
fileCount++;
String chunkName = listOfFiles[i].getName().toString();
chunkId = chunkName.substring(chunkName.lastIndexOf('.') + 6);
xPayload(chunkId);
if ((connTo.equals("2") && Integer.parseInt(chunkId) % noDev == 0)
|| (connTo.equals("3") && (Integer.parseInt(chunkId) - 1) % noDev == 0)
|| (connTo.equals("4") && (Integer.parseInt(chunkId) - 2) % noDev == 0)
|| (connTo.equals("5") && (Integer.parseInt(chunkId) - 3) % noDev == 0)
|| (connTo.equals("6") && (Integer.parseInt(chunkId) - 4) % noDev == 0)) {
System.out.println(chunkName);
sendFile(chunkName);
}
}
}
xPayload("-1");
System.out.println("All chunks sent.");
} catch (IOException ioException) {
ioException.printStackTrace();
} finally {
// Close connections
try {
in.close();
out.close();
csocket.close();
System.out.println("Thread closed.");
} catch (IOException ioException) {
System.out.println("Client " + devId + " disconnected.");
}
}
}
void isAcceptable(SelectionKey k) {
ServerSocketChannel ss = (ServerSocketChannel) k.channel();
SocketChannel sn;
long b;
for (int n = 0; n < 10; n++) {
try {
sn = ss.accept();
if (sn == null) break;
} catch (IOException e) {
e.printStackTrace();
k.cancel();
ServerSocketChannel server = Acceptors.remove(k.attachment());
if (server != null)
try {
server.close();
} catch (IOException ex) {
}
;
break;
}
try {
sn.configureBlocking(false);
} catch (IOException e) {
e.printStackTrace();
continue;
}
b = createBinding();
EventableSocketChannel ec = new EventableSocketChannel(sn, b, mySelector);
Connections.put(b, ec);
NewConnections.add(b);
eventCallback(((Long) k.attachment()).longValue(), EM_CONNECTION_ACCEPTED, null, b);
}
}
/**
* Closes open files and resources associated with the open DDSImage. No other methods may be
* called on this object once this is called.
*/
public void close() {
try {
if (chan != null) {
chan.close();
chan = null;
}
if (fis != null) {
fis.close();
fis = null;
}
buf = null;
} catch (IOException e) {
e.printStackTrace();
}
}
public void run() {
for (; ; ) {
try {
int n = sel.select();
if (n > 0) processSelectedKeys();
processPendingTargets();
if (shutdown) {
sel.close();
return;
}
} catch (IOException x) {
x.printStackTrace();
}
}
}
public void run() {
while (!shutdown) {
try {
registerTargets();
if (selector.select() > 0) {
processSelectedKeys();
}
} catch (Exception e) {
e.printStackTrace();
}
}
try {
selector.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public void receiveTarget() {
// 接收用户输入的地址，向targets队列中加入任务
try {
BufferedReader localReader = new BufferedReader(new InputStreamReader(System.in));
String msg = null;
while ((msg = localReader.readLine()) != null) {
if (!msg.equals("bye")) {
Target target = new Target(msg);
addTarget(target);
} else {
shutdown = true;
selector.wakeup();
break;
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void registerTargets() {
// 取出targets队列中的任务，向Selector注册连接就绪事件
synchronized (targets) {
while (targets.size() > 0) {
Target target = (Target) targets.removeFirst();
try {
target.channel.register(selector, SelectionKey.OP_CONNECT, target);
} catch (IOException x) {
try {
target.channel.close();
} catch (IOException e) {
e.printStackTrace();
}
target.failure = x;
addFinishedTarget(target);
}
}
}
}
/** @param args */
public static void main(String[] args) {
FileChannel fc = null;
RandomAccessFile raf = null;
// StringBuilder sb;
if (args.length != 1) {
System.out.println("Usage: Ntfs filename");
System.exit(1);
}
/*
sb = new StringBuilder();
int[] foo = {129,4,229,33};
for (int b: foo) {
sb.insert(0,String.format("%02X", b));
}
System.out.println(sb.toString());
System.exit(0);
*/
try {
raf = new RandomAccessFile(args[0], "r");
fc = raf.getChannel();
Filesystem fs = new Filesystem(fc);
fs.demo();
// fs.displayFs();
} catch (FileNotFoundException x) {
System.out.println("FNF exp: " + x.getMessage());
} catch (IOException x) {
System.out.println("IO exp: " + x.getMessage());
} finally {
if (raf != null)
try {
raf.close();
} catch (IOException e) {
e.printStackTrace(); // To change body of catch statement use File | Settings | File
// Templates.
}
}
}
// Exchange chunkId, devId, and ownedChunkArray
void xPayload(String chunkId) {
Socket conn = null;
try {
// Get message
Object[] rPayload = (Object[]) in.readObject();
chunkOwnedClientArray = (String[]) rPayload[1];
connTo = (String) rPayload[0];
chunkOwnedClientList = Arrays.asList(chunkOwnedClientArray);
// Send Message
Object[] payload = {chunkId, devId, chunkOwnedArray, filename};
out.writeObject(payload);
out.flush();
System.out.println("chunkId being sent: " + chunkId + ", connected to: " + connTo);
} catch (IOException ioException) {
ioException.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
void checkIO() {
long timeout;
if (NewConnections.size() > 0) {
timeout = -1;
} else if (!Timers.isEmpty()) {
long now = new Date().getTime();
long k = Timers.firstKey();
long diff = k - now;
if (diff <= 0) timeout = -1; // don't wait, just poll once
else timeout = diff;
} else {
timeout = 0; // wait indefinitely
}
try {
if (timeout == -1) mySelector.selectNow();
else mySelector.select(timeout);
} catch (IOException e) {
e.printStackTrace();
}
}
public void run() {
// Here's where everything happens. The select method will
// return when any operations registered above have occurred, the
// thread has been interrupted, etc.
try {
while (!stop) {
try {
if (selector.select() > 0) {
if (stop) {
break;
}
// Someone is ready for I/O, get the ready keys
Set readyKeys = selector.selectedKeys();
Iterator it = readyKeys.iterator();
// Walk through the ready keys collection and process date requests.
while (it.hasNext()) {
SelectionKey sk = (SelectionKey) it.next();
it.remove();
SocketChannel readChannel = null;
TcpAddress incomingAddress = null;
if (sk.isAcceptable()) {
// The key indexes into the selector so you
// can retrieve the socket that's ready for I/O
ServerSocketChannel nextReady = (ServerSocketChannel) sk.channel();
// Accept the date request and send back the date string
Socket s = nextReady.accept().socket();
readChannel = s.getChannel();
readChannel.configureBlocking(false);
readChannel.register(selector, SelectionKey.OP_READ);
incomingAddress = new TcpAddress(s.getInetAddress(), s.getPort());
SocketEntry entry = new SocketEntry(incomingAddress, s);
sockets.put(incomingAddress, entry);
timeoutSocket(entry);
TransportStateEvent e =
new TransportStateEvent(
DefaultTcpTransportMapping.this,
incomingAddress,
TransportStateEvent.STATE_CONNECTED,
null);
fireConnectionStateChanged(e);
} else if (sk.isReadable()) {
readChannel = (SocketChannel) sk.channel();
incomingAddress =
new TcpAddress(
readChannel.socket().getInetAddress(), readChannel.socket().getPort());
} else if (sk.isWritable()) {
try {
SocketEntry entry = (SocketEntry) sk.attachment();
SocketChannel sc = (SocketChannel) sk.channel();
if (entry != null) {
writeMessage(entry, sc);
}
} catch (IOException iox) {
if (logger.isDebugEnabled()) {
iox.printStackTrace();
}
logger.warn(iox);
TransportStateEvent e =
new TransportStateEvent(
DefaultTcpTransportMapping.this,
incomingAddress,
TransportStateEvent.STATE_DISCONNECTED_REMOTELY,
iox);
fireConnectionStateChanged(e);
sk.cancel();
}
} else if (sk.isConnectable()) {
try {
SocketEntry entry = (SocketEntry) sk.attachment();
SocketChannel sc = (SocketChannel) sk.channel();
if ((!sc.isConnected()) && (sc.finishConnect())) {
sc.configureBlocking(false);
logger.debug("Connected to " + entry.getPeerAddress());
// make sure conncetion is closed if not used for timeout
// micro seconds
timeoutSocket(entry);
sc.register(selector, SelectionKey.OP_WRITE, entry);
}
TransportStateEvent e =
new TransportStateEvent(
DefaultTcpTransportMapping.this,
incomingAddress,
TransportStateEvent.STATE_CONNECTED,
null);
fireConnectionStateChanged(e);
} catch (IOException iox) {
if (logger.isDebugEnabled()) {
iox.printStackTrace();
}
logger.warn(iox);
sk.cancel();
}
}
if (readChannel != null) {
try {
readMessage(sk, readChannel, incomingAddress);
} catch (IOException iox) {
// IO exception -> channel closed remotely
if (logger.isDebugEnabled()) {
iox.printStackTrace();
}
logger.warn(iox);
sk.cancel();
readChannel.close();
TransportStateEvent e =
new TransportStateEvent(
DefaultTcpTransportMapping.this,
incomingAddress,
TransportStateEvent.STATE_DISCONNECTED_REMOTELY,
iox);
fireConnectionStateChanged(e);
}
}
}
}
} catch (NullPointerException npex) {
// There seems to happen a NullPointerException within the select()
npex.printStackTrace();
logger.warn("NullPointerException within select()?");
}
processPending();
}
if (ssc != null) {
ssc.close();
}
} catch (IOException iox) {
logger.error(iox);
lastError = iox;
}
if (!stop) {
stop = true;
synchronized (DefaultTcpTransportMapping.this) {
server = null;
}
}
}
