private HtmlRequest readRequest(Socket socket) throws IOException {
BufferedReader requestBufferedReader =
new BufferedReader(new InputStreamReader(socket.getInputStream()));
StringBuilder requestStringBuilder = new StringBuilder();
try {
String line = requestBufferedReader.readLine();
while (!line.isEmpty()) {
requestStringBuilder.append(line + NEWLINE);
line = requestBufferedReader.readLine();
}
} catch (IOException e) {
System.out.println("An error occured while reading from the socket: " + e.toString());
}
if (requestStringBuilder.toString().isEmpty()) {
return null;
}
HtmlRequest htmlRequest = new HtmlRequest(requestStringBuilder.toString());
if (htmlRequest.type.equals("POST") || htmlRequest.type.equals("TRACE")) {
htmlRequest.getParametersFromBody(requestBufferedReader);
}
return htmlRequest;
}
public void run() {
try {
theInputStream = new BufferedReader(new InputStreamReader(client.getInputStream()));
theOutputStream = new PrintStream(client.getOutputStream());
while (true) {
readin = theInputStream.readLine();
chat.ta.append(readin + "\n");
}
} catch (SocketException e) {
chat.ta.append("连接中断！\n");
chat.clientBtn.setEnabled(true);
chat.serverBtn.setEnabled(true);
chat.tfaddress.setEnabled(true);
chat.tfport.setEnabled(true);
try {
i--;
skt.close();
client.close();
} catch (IOException err) {
chat.ta.append(err.toString());
}
} catch (IOException e) {
chat.ta.append(e.toString());
}
}
public static void main(String[] args) {
ServerSocket welcomeSocket; // TCP-Server-Socketklasse
Socket connectionSocket; // TCP-Standard-Socketklasse
int counter = 0; // Z�hlt die erzeugten Bearbeitungs-Threads
try {
/* Server-Socket erzeugen */
welcomeSocket = new ServerSocket(SERVER_PORT);
while (true) { // Server laufen IMMER
System.out.println(
"TCP Server: Waiting for connection - listening TCP port " + SERVER_PORT);
/*
* Blockiert auf Verbindungsanfrage warten --> nach
* Verbindungsaufbau Standard-Socket erzeugen und
* connectionSocket zuweisen
*/
connectionSocket = welcomeSocket.accept();
/* Neuen Arbeits-Thread erzeugen und den Socket �bergeben */
(new TCPServerThread(++counter, connectionSocket)).start();
}
} catch (IOException e) {
System.err.println(e.toString());
}
}
private int Load_Edges(DataInputStream inStream, int num) {
String line;
String item1, item2, item3;
int source_node;
int dest_node;
int value;
int n_nodes, edge_cnt;
// Node nodes_array[] = new Node[num]; // Wil
Edge edge;
n_nodes = num;
Node nodes_array[];
nodes_array = new Node[n_nodes];
nodes_array = this.Node_Array(); // Wil
edge_cnt = 0;
try {
while ((line = inStream.readLine()) != null) {
StringTokenizer Data = new StringTokenizer(line, " ");
item1 = Data.nextToken();
item2 = Data.nextToken();
item3 = Data.nextToken();
source_node = Integer.parseInt(item1);
dest_node = Integer.parseInt(item2);
value = Integer.parseInt(item3);
edge = new Edge(nodes_array[source_node - 1], nodes_array[dest_node - 1], value);
this.Add_Edge(edge);
edge_cnt++;
}
// inFile.close();
} catch (IOException e) {
System.err.println("Error in accessing URL: " + e.toString());
System.exit(1);
}
return edge_cnt;
}
public void run() {
String capitalizedSentence;
System.out.println("TCP Server Thread " + name + " is running until QUIT is received!");
try {
/* Socket-Basisstreams durch spezielle Streams filtern */
inFromClient = new BufferedReader(new InputStreamReader(socket.getInputStream()));
outToClient = new DataOutputStream(socket.getOutputStream());
while (serviceRequested) {
/* String vom Client empfangen und in Gro�buchstaben umwandeln */
capitalizedSentence = readFromClient().toUpperCase();
/* Modifizierten String an Client senden */
writeToClient(capitalizedSentence);
/* Test, ob Arbeitsthread beendet werden soll */
if (capitalizedSentence.indexOf("QUIT") > -1) {
serviceRequested = false;
}
}
/* Socket-Streams schlie�en --> Verbindungsabbau */
socket.close();
} catch (IOException e) {
System.err.println(e.toString());
System.exit(1);
}
System.out.println("TCP Server Thread " + name + " stopped!");
}
public SSLResult fingerprint() throws IOException, FingerprintError {
SSLConfigCollector scc;
scc = new SSLConfigCollector(host, port, si);
scc.setCertValidator(cv);
startDate = new Date();
sslSupport = SSLResult.UNKNOWN;
// If a delay is set, wait some time, except for
// the first request
if (!initial && (delay > 0)) {
if (Debug.get(Debug.Delay)) {
System.err.println("Delaying request.");
}
try {
Thread.sleep(delay);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
initial = false;
try {
scc.probe();
sslSupport = SSLResult.SUPPORTED;
sslSupportReason = null;
} catch (NoSSLException e) {
// This exception is thrown when the protocol support
// for ssl is not available
sslSupport = SSLResult.UNSUPPORTED;
sslSupportReason = e.toString();
} catch (FingerprintException e) {
sslSupport = SSLResult.UNSUPPORTED;
sslSupportReason = e.toString();
} catch (IOException e) {
sslSupport = SSLResult.UNKNOWN;
sslSupportReason = e.toString();
}
endDate = new Date();
protos = scc.getSupportedProtos();
ProbeResult pres =
new ProbeResult(
host,
port,
startDate,
endDate,
sslSupport,
sslSupportReason,
scc.getServerCertificates(),
scc.serverCertificateVerifies(),
scc.serverCertNameMatch());
pres.setProtosResult(protos);
return pres;
}
private void sendEntityBodyToClient(
DataOutputStream socketOutputStream, HtmlResponse htmlResponse, boolean isChunked)
throws IOException {
byte[] content = htmlResponse.getEntityBody();
if (!isChunked) {
try {
socketOutputStream.write(content, 0, content.length);
socketOutputStream.flush();
} catch (IOException e) {
System.out.println("Writing the answer caused an error" + e.toString());
}
} else {
int currentIndexStart = 0;
int currentIndexEnd = Math.min(CHUNCKED_BYTES - 1, content.length - 1);
int lengthOfBytesSent = currentIndexEnd - currentIndexStart + 1;
while (currentIndexStart < content.length - 1) {
socketOutputStream.writeBytes(Integer.toHexString(lengthOfBytesSent) + CRLF);
socketOutputStream.write(content, currentIndexStart, lengthOfBytesSent);
socketOutputStream.writeBytes(CRLF);
socketOutputStream.flush();
currentIndexStart = currentIndexEnd + 1;
currentIndexEnd = Math.min(currentIndexStart + CHUNCKED_BYTES - 1, content.length - 1);
lengthOfBytesSent = currentIndexEnd - currentIndexStart + 1;
}
socketOutputStream.writeBytes("0" + CRLF);
socketOutputStream.writeBytes(CRLF);
socketOutputStream.flush();
}
}
public Server(int port, Face chat) {
try {
this.port = port;
skt = new ServerSocket(port);
this.chat = chat;
} catch (IOException e) {
chat.ta.append(e.toString());
}
}
private int Load_Nodes(DataInputStream inStream) {
// need to open file and load data
int node_id;
int x_cor;
int y_cor;
// int n_nodes, n_edges, node_cnt, arrow_status;
Node n;
String line;
String item1, item2, item3, item4;
node_id = 0;
x_cor = 0;
y_cor = 0;
// n_nodes = 0;
// n_edges = 0;
// arrow_status = -1;
try {
if ((line = inStream.readLine()) != null) {
StringTokenizer Data = new StringTokenizer(line, " ");
item1 = Data.nextToken();
n_nodes = Integer.parseInt(item1);
item2 = Data.nextToken();
n_edges = Integer.parseInt(item2);
item3 = Data.nextToken();
arrow_status = Integer.parseInt(item3);
// item4 = Data.nextToken();
// type = Integer.parseInt( item4 );
// graph = new GraphClass( n_nodes, n_edges, arrow_status );
nodes = new Node[n_nodes];
edges = new Edge[n_edges];
// ???
while ((this.Node_Cnt() < n_nodes) && ((line = inStream.readLine()) != null)) {
Data = new StringTokenizer(line, " ");
item1 = Data.nextToken();
item2 = Data.nextToken();
item3 = Data.nextToken();
node_id = Integer.parseInt(item1);
x_cor = Integer.parseInt(item2);
y_cor = Integer.parseInt(item3);
n = new Node(node_id, x_cor, y_cor);
this.Add_Node(n);
}
if (n_nodes != 0) {
source_node = nodes[0];
}
}
} catch (IOException e) {
System.err.println("error in file" + e.toString());
System.exit(1);
}
return this.Node_Cnt();
}
private void writeToClient(String reply) {
/* Sende den String als Antwortzeile (mit newline) zum Client */
try {
outToClient.writeBytes(reply + '\n');
} catch (IOException e) {
System.err.println(e.toString());
serviceRequested = false;
}
System.out.println("TCP Server Thread " + name + " has written the message: " + reply);
}
public long startTcpServer(SocketAddress sa) throws EmReactorException {
try {
ServerSocketChannel server = ServerSocketChannel.open();
server.configureBlocking(false);
server.socket().bind(sa);
long s = createBinding();
Acceptors.put(s, server);
server.register(mySelector, SelectionKey.OP_ACCEPT, s);
return s;
} catch (IOException e) {
throw new EmReactorException("unable to open socket acceptor: " + e.toString());
}
}
/*
* Write a String to the Client output stream
*/
private boolean writeMsg(String msg) {
// if Client is still connected send the message to it
if (!socket.isConnected()) {
close();
return false;
}
// write the message to the stream
try {
sOutput.writeObject(msg);
}
// if an error occurs, do not abort just inform the user
catch (IOException e) {
display("Error sending message to " + username);
display(e.toString());
}
return true;
}
private void writeDeadFile(String fileName) {
try {
PrintWriter out = new PrintWriter(new BufferedOutputStream(new FileOutputStream(fileName)));
out.println("<TITLE>Error</TITLE>");
out.println("<BODY BGCOLOR=\"white\">");
out.println("<h1>Operation not allowed</h1>");
out.println("<hr>");
out.println("<P>This operation only works for live Qat instances");
out.println("<hr>");
out.println("<A HREF=\"./index.html\">Report Index</A><BR>");
out.println("</BODY>");
out.println("</HTML>");
out.flush();
out.close();
} catch (IOException e) {
System.out.println("Error writing page:" + fileName + " " + e.toString());
}
}
public static void main(String[] args) throws IOException {
// default hostname
String hostName = "139.62.210.150";
// defaults if args not there
if (args.length != 0 && args[0] != null) {
hostName = args[0];
}
System.out.println("Defaulting to host: \"" + hostName + "\"");
int port = 3515;
Socket clientSocket = new Socket(hostName, port);
// Attempt To open communications between the server and client
if (clientSocket != null) {
try (
// Attempt to create the reciving and outputing communications
PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
BufferedReader in =
new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); ) {
// if Successful start reading user's input via a buffer stream
BufferedReader userInput = new BufferedReader(new InputStreamReader(System.in));
// Create response Variables
String serverResponse;
String userResponse;
while ((serverResponse = in.readLine()) != null) {
System.out.println(serverResponse);
// the program to exit uses the string "Exit\n"
if (serverResponse.equals("Exit")) {
System.out.println("Goodbye Program Exiting\n");
break;
}
// reads user's input and forwards it to the Server
if (serverResponse.equals("Select Menu Option")) {
userResponse = userInput.readLine();
if (userResponse != null) {
out.println(userResponse);
}
}
}
} catch (IOException e) {
System.err.println(e.toString());
}
}
clientSocket.close();
}
/*
* Write a String to the Client output stream
*/
private boolean writeMsg(ChatMessage cm) {
// if Client is still connected send the message to it
if (!socket.isConnected()) {
close();
return false;
}
// write the message to the stream
try {
boolean sendChatMessage = cm.getType() == ChatMessage.ESTABLISHCONNECTION;
boolean sendMediaFileMessage = cm.getType() == ChatMessage.ESTABLISHCONNECTIONANDPLAY;
if (sendChatMessage || sendMediaFileMessage) sOutput.writeObject(cm);
else sOutput.writeObject(cm.getMessage());
}
// if an error occurs, do not abort just inform the user
catch (IOException e) {
display("Error sending message to " + username);
display(e.toString());
}
return true;
}
public void run() {
System.out.println(" -----------------UDP Demo Server-----------------" + "\n\n");
while (true) {
try {
// Create a new socket connection bound to the defined port
DatagramSocket sock = new DatagramSocket(BROADCAST_PORT);
System.out.println("Waiting for data on local port: " + sock.getLocalPort());
// Create a packet to contain incoming data
byte[] buf = new byte[256];
DatagramPacket packet = new DatagramPacket(buf, buf.length);
// Wait for incoming data (receive() is a blocking method)
sock.receive(packet);
// Retrieve data from packet and display
String data = new String(packet.getData());
int endIndex = data.indexOf(0);
data = data.substring(0, endIndex);
int remotePort = packet.getPort();
System.out.println("Received data from remote port " + remotePort + ":\n" + data);
// Determine origin of packet and display information
InetAddress remoteAddress = packet.getAddress();
System.out.println("Sent from address: " + remoteAddress.getHostAddress());
// Send back an acknowledgment
String ack = "RECEIVED " + new Date().toString();
sock.send(new DatagramPacket(ack.getBytes(), ack.length(), remoteAddress, remotePort));
sock.close();
} catch (IOException ioe) {
System.out.println("Error: IOException - " + ioe.toString());
}
}
}
public void run() {
chat.ta.append("等待连线......");
while (true) {
try {
client[k] = skt.accept();
if (i < 2) {
ServerThread server[] = new ServerThread[10];
server[k] = new ServerThread(client[k], this.chat, i);
l = server.length;
server[k].start();
chat.ta.append("客户端" + client[k].getInetAddress() + "已连线\n");
theOutputStream = new PrintStream(server[k].getClient().getOutputStream());
i = server[k].getI();
k++;
} else {
}
} catch (SocketException e) {
} catch (IOException e) {
chat.ta.append(e.toString());
}
}
}
public long connectTcpServer(String bindAddr, int bindPort, String address, int port) {
long b = createBinding();
try {
SocketChannel sc = SocketChannel.open();
sc.configureBlocking(false);
if (bindAddr != null) sc.socket().bind(new InetSocketAddress(bindAddr, bindPort));
EventableSocketChannel ec = new EventableSocketChannel(sc, b, mySelector);
if (sc.connect(new InetSocketAddress(address, port))) {
// Connection returned immediately. Can happen with localhost connections.
// WARNING, this code is untested due to lack of available test conditions.
// Ought to be be able to come here from a localhost connection, but that
// doesn't happen on Linux. (Maybe on FreeBSD?)
// The reason for not handling this until we can test it is that we
// really need to return from this function WITHOUT triggering any EM events.
// That's because until the user code has seen the signature we generated here,
// it won't be able to properly dispatch them. The C++ EM deals with this
// by setting pending mode as a flag in ALL eventable descriptors and making
// the descriptor select for writable. Then, it can send UNBOUND and
// CONNECTION_COMPLETED on the next pass through the loop, because writable will
// fire.
throw new RuntimeException("immediate-connect unimplemented");
} else {
ec.setConnectPending();
Connections.put(b, ec);
NewConnections.add(b);
}
} catch (IOException e) {
// Can theoretically come here if a connect failure can be determined immediately.
// I don't know how to make that happen for testing purposes.
throw new RuntimeException("immediate-connect unimplemented: " + e.toString());
}
return b;
}
public void generateFileChunks(JspWriter out, HttpServletRequest req) throws IOException {
long startOffset = 0;
int chunkSizeToView = 0;
String referrer = req.getParameter("referrer");
boolean noLink = false;
if (referrer == null) {
noLink = true;
}
String filename = req.getParameter("filename");
if (filename == null) {
out.print("Invalid input (file name absent)");
return;
}
String namenodeInfoPortStr = req.getParameter("namenodeInfoPort");
int namenodeInfoPort = -1;
if (namenodeInfoPortStr != null) namenodeInfoPort = Integer.parseInt(namenodeInfoPortStr);
String chunkSizeToViewStr = req.getParameter("chunkSizeToView");
if (chunkSizeToViewStr != null && Integer.parseInt(chunkSizeToViewStr) > 0)
chunkSizeToView = Integer.parseInt(chunkSizeToViewStr);
else chunkSizeToView = jspHelper.defaultChunkSizeToView;
if (!noLink) {
out.print("<h3>Tail of File: ");
JspHelper.printPathWithLinks(filename, out, namenodeInfoPort);
out.print("</h3><hr>");
out.print("<a href=\"" + referrer + "\">Go Back to File View</a><hr>");
} else {
out.print("<h3>" + filename + "</h3>");
}
out.print("<b>Chunk size to view (in bytes, up to file's DFS block size): </b>");
out.print(
"<input type=\"text\" name=\"chunkSizeToView\" value="
+ chunkSizeToView
+ " size=10 maxlength=10>");
out.print(" <input type=\"submit\" name=\"submit\" value=\"Refresh\"><hr>");
out.print("<input type=\"hidden\" name=\"filename\" value=\"" + filename + "\">");
out.print(
"<input type=\"hidden\" name=\"namenodeInfoPort\" value=\"" + namenodeInfoPort + "\">");
if (!noLink) out.print("<input type=\"hidden\" name=\"referrer\" value=\"" + referrer + "\">");
// fetch the block from the datanode that has the last block for this file
DFSClient dfs = new DFSClient(jspHelper.nameNodeAddr, jspHelper.conf);
List<LocatedBlock> blocks =
dfs.namenode.getBlockLocations(filename, 0, Long.MAX_VALUE).getLocatedBlocks();
if (blocks == null || blocks.size() == 0) {
out.print("No datanodes contain blocks of file " + filename);
dfs.close();
return;
}
LocatedBlock lastBlk = blocks.get(blocks.size() - 1);
long blockSize = lastBlk.getBlock().getNumBytes();
long blockId = lastBlk.getBlock().getBlockId();
long genStamp = lastBlk.getBlock().getGenerationStamp();
DatanodeInfo chosenNode;
try {
chosenNode = jspHelper.bestNode(lastBlk);
} catch (IOException e) {
out.print(e.toString());
dfs.close();
return;
}
InetSocketAddress addr = NetUtils.createSocketAddr(chosenNode.getName());
// view the last chunkSizeToView bytes while Tailing
if (blockSize >= chunkSizeToView) startOffset = blockSize - chunkSizeToView;
else startOffset = 0;
out.print("<textarea cols=\"100\" rows=\"25\" wrap=\"virtual\" style=\"width:100%\" READONLY>");
jspHelper.streamBlockInAscii(
addr, blockId, genStamp, blockSize, startOffset, chunkSizeToView, out);
out.print("</textarea>");
dfs.close();
}
public void generateFileDetails(JspWriter out, HttpServletRequest req, Configuration conf)
throws IOException, InterruptedException {
int chunkSizeToView = 0;
long startOffset = 0;
int datanodePort;
String blockIdStr = null;
long currBlockId = 0;
blockIdStr = req.getParameter("blockId");
if (blockIdStr == null) {
out.print("Invalid input (blockId absent)");
return;
}
currBlockId = Long.parseLong(blockIdStr);
String datanodePortStr = req.getParameter("datanodePort");
if (datanodePortStr == null) {
out.print("Invalid input (datanodePort absent)");
return;
}
datanodePort = Integer.parseInt(datanodePortStr);
String namenodeInfoPortStr = req.getParameter("namenodeInfoPort");
int namenodeInfoPort = -1;
if (namenodeInfoPortStr != null) namenodeInfoPort = Integer.parseInt(namenodeInfoPortStr);
String chunkSizeToViewStr = req.getParameter("chunkSizeToView");
if (chunkSizeToViewStr != null && Integer.parseInt(chunkSizeToViewStr) > 0) {
chunkSizeToView = Integer.parseInt(chunkSizeToViewStr);
} else {
chunkSizeToView = JspHelper.getDefaultChunkSize(conf);
}
String startOffsetStr = req.getParameter("startOffset");
if (startOffsetStr == null || Long.parseLong(startOffsetStr) < 0) startOffset = 0;
else startOffset = Long.parseLong(startOffsetStr);
String filename = HtmlQuoting.unquoteHtmlChars(req.getParameter("filename"));
if (filename == null || filename.length() == 0) {
out.print("Invalid input");
return;
}
String blockSizeStr = req.getParameter("blockSize");
long blockSize = 0;
if (blockSizeStr == null || blockSizeStr.length() == 0) {
out.print("Invalid input");
return;
}
blockSize = Long.parseLong(blockSizeStr);
String tokenString = req.getParameter(JspHelper.DELEGATION_PARAMETER_NAME);
UserGroupInformation ugi = JspHelper.getUGI(req, conf);
DFSClient dfs = JspHelper.getDFSClient(ugi, jspHelper.nameNodeAddr, conf);
List<LocatedBlock> blocks =
dfs.namenode.getBlockLocations(filename, 0, Long.MAX_VALUE).getLocatedBlocks();
// Add the various links for looking at the file contents
// URL for downloading the full file
String downloadUrl =
"http://"
+ req.getServerName()
+ ":"
+ +req.getServerPort()
+ "/streamFile"
+ URLEncoder.encode(filename, "UTF-8")
+ "?"
+ JspHelper.DELEGATION_PARAMETER_NAME
+ "="
+ tokenString;
out.print("<a name=\"viewOptions\"></a>");
out.print("<a href=\"" + downloadUrl + "\">Download this file</a><br>");
DatanodeInfo chosenNode;
// URL for TAIL
LocatedBlock lastBlk = blocks.get(blocks.size() - 1);
long blockId = lastBlk.getBlock().getBlockId();
try {
chosenNode = jspHelper.bestNode(lastBlk);
} catch (IOException e) {
out.print(e.toString());
dfs.close();
return;
}
String fqdn = InetAddress.getByName(chosenNode.getHost()).getCanonicalHostName();
String tailUrl =
"http://"
+ fqdn
+ ":"
+ chosenNode.getInfoPort()
+ "/tail.jsp?filename="
+ URLEncoder.encode(filename, "UTF-8")
+ "&namenodeInfoPort="
+ namenodeInfoPort
+ "&chunkSizeToView="
+ chunkSizeToView
+ "&referrer="
+ URLEncoder.encode(req.getRequestURL() + "?" + req.getQueryString(), "UTF-8")
+ JspHelper.getDelegationTokenUrlParam(tokenString);
out.print("<a href=\"" + tailUrl + "\">Tail this file</a><br>");
out.print("<form action=\"/browseBlock.jsp\" method=GET>");
out.print("<b>Chunk size to view (in bytes, up to file's DFS block size): </b>");
out.print("<input type=\"hidden\" name=\"blockId\" value=\"" + currBlockId + "\">");
out.print("<input type=\"hidden\" name=\"blockSize\" value=\"" + blockSize + "\">");
out.print("<input type=\"hidden\" name=\"startOffset\" value=\"" + startOffset + "\">");
out.print("<input type=\"hidden\" name=\"filename\" value=\"" + filename + "\">");
out.print("<input type=\"hidden\" name=\"datanodePort\" value=\"" + datanodePort + "\">");
out.print(
"<input type=\"hidden\" name=\"namenodeInfoPort\" value=\"" + namenodeInfoPort + "\">");
out.print(
"<input type=\"text\" name=\"chunkSizeToView\" value="
+ chunkSizeToView
+ " size=10 maxlength=10>");
out.print(" <input type=\"submit\" name=\"submit\" value=\"Refresh\">");
out.print("</form>");
out.print("<hr>");
out.print("<a name=\"blockDetails\"></a>");
out.print("<B>Total number of blocks: " + blocks.size() + "</B><br>");
// generate a table and dump the info
out.println("\n<table>");
for (LocatedBlock cur : blocks) {
out.print("<tr>");
blockId = cur.getBlock().getBlockId();
blockSize = cur.getBlock().getNumBytes();
String blk = "blk_" + Long.toString(blockId);
out.print("<td>" + Long.toString(blockId) + ":</td>");
DatanodeInfo[] locs = cur.getLocations();
for (int j = 0; j < locs.length; j++) {
String datanodeAddr = locs[j].getName();
datanodePort =
Integer.parseInt(
datanodeAddr.substring(datanodeAddr.indexOf(':') + 1, datanodeAddr.length()));
fqdn = InetAddress.getByName(locs[j].getHost()).getCanonicalHostName();
String blockUrl =
"http://"
+ fqdn
+ ":"
+ locs[j].getInfoPort()
+ "/browseBlock.jsp?blockId="
+ Long.toString(blockId)
+ "&blockSize="
+ blockSize
+ "&filename="
+ URLEncoder.encode(filename, "UTF-8")
+ "&datanodePort="
+ datanodePort
+ "&genstamp="
+ cur.getBlock().getGenerationStamp()
+ "&namenodeInfoPort="
+ namenodeInfoPort
+ "&chunkSizeToView="
+ chunkSizeToView;
out.print(
"<td> </td>" + "<td><a href=\"" + blockUrl + "\">" + datanodeAddr + "</a></td>");
}
out.println("</tr>");
}
out.println("</table>");
out.print("<hr>");
String namenodeHost = jspHelper.nameNodeAddr.getHostName();
out.print(
"<br><a href=\"http://"
+ InetAddress.getByName(namenodeHost).getCanonicalHostName()
+ ":"
+ namenodeInfoPort
+ "/dfshealth.jsp\">Go back to DFS home</a>");
dfs.close();
}
/**
* close: close the socket and stream
*
* @return: true for success, false for error
*/
protected boolean close() {
_dlog("Do main thread closing...");
if (_sock != null && !_sock.isClosed()) {
_dlog("Closing the receiving thread");
try {
_sock.close();
_in.close();
_out.close();
_sock = null;
_in = null;
_out = null;
_dlog("Success!");
} catch (IOException e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
return false;
}
}
_sock = null;
_in = null;
_out = null;
_dlog("Cancel the user input thread");
if (_userNet != null) {
_userNet.stop();
_userNet.join(); // guaranteed to be closed
_userNet = null;
}
if (_userSock != null && !_userSock.isClosed()) {
_dlog("Closing the user input thread");
// Stop the user thread
try {
_userSock.close();
_userIn.close();
_userOut.close();
_userSock = null;
_userIn = null;
_userOut = null;
_dlog("Success!");
} catch (IOException e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
return false;
}
}
_userSock = null;
_userIn = null;
_userOut = null;
/* Cancel all client nodes */
_dlog("Finished");
return true;
/* CAUTION: _server is never cleared */
}
/**
* connect: connect to the master
*
* @return: true for success and false for failure
*/
protected boolean connect() {
boolean connected = true;
try {
_sock = new Socket(_serverIP, _serverPort);
_out = new PrintWriter(_sock.getOutputStream(), true);
_in = new BufferedReader(new InputStreamReader(_sock.getInputStream()));
String reply = sendAll();
if (!reply.equals(ProtocolConstants.PACK_STR_CONFIRM_HEAD)) {
/* Tokenize */
StringTokenizer st = new StringTokenizer(reply);
if (st.nextToken().equals(ProtocolConstants.PACK_STR_ERRMES_HEAD)) {
_elog(st.nextToken());
return false;
}
}
_userSock = new Socket(_serverIP, _serverPort);
_userOut = new PrintWriter(_userSock.getOutputStream(), true);
_userIn = new BufferedReader(new InputStreamReader(_userSock.getInputStream()));
String replyUser = sendUserID();
if (!replyUser.equals(ProtocolConstants.PACK_STR_CONFIRM_HEAD)) {
throw new Exception("Not confirmed");
}
} catch (UnknownHostException e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
connected = false;
} catch (IOException e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
connected = false;
} catch (Exception e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
connected = false;
}
if (!connected) {
return connected;
}
if (!connected) {
/* Remove the pair of socket */
_sock = null;
_in = null;
_out = null;
_userSock = null;
_userOut = null;
_userIn = null;
}
return connected;
}
public static void main(String[] args) {
BufferedReader sysIn =
new BufferedReader(new InputStreamReader(System.in)); // Read from console
PrintStream sysOut = System.out; // Print to console
SSLSocketFactory mainFactory =
(SSLSocketFactory) SSLSocketFactory.getDefault(); // Get default SSL socket factory
try {
SSLSocket clientSocket =
(SSLSocket)
mainFactory.createSocket(
"pop.mail.yahoo.com", 995); // create, connect, start handshake
printSocketInfo(clientSocket); // Print connection info
BufferedWriter serverWriter =
new BufferedWriter(
new OutputStreamWriter(clientSocket.getOutputStream())); // Write to server
BufferedReader serverReader =
new BufferedReader(
new InputStreamReader(clientSocket.getInputStream())); // Read from server
String serverInput = null; // Stores latest line from server
String userInput = ""; // Stores lastest input line from user
boolean tryRead =
true; // Whether to read next line from serverReader (prevents blocking on multiline SMTP
// responses)
// The below booleans, used to successully close the connection, might be unnecessary
boolean quitUser = false; // Whether the user has entered quit, might be unnecessary
boolean openRead = true; // Whether serverReader is still open (serverInput != null)
boolean openSocket = true; // Whether clientSocket is still open (clientSocket != null)
// SMTP input variables
boolean sendingData = false;
boolean multi = false;
// Main connection loop
while (openSocket && openRead && !quitUser) {
if (clientSocket == null) { // Break if socket is closed
openSocket = false;
break;
}
// Display server response/message
if (multi) {
while (tryRead) {
serverInput = serverReader.readLine();
if (serverInput == null) { // If serverReader gets closed/connection broken
openRead = false;
tryRead = false;
break;
}
sysOut.println(serverInput);
// Check for multiline response or error
if (serverInput.equals(".")
|| (serverInput.length() >= 4 && serverInput.startsWith("-ERR"))) {
tryRead = false;
} else {
tryRead = true;
}
}
} else {
serverInput = serverReader.readLine();
if (serverInput == null) { // If serverReader gets closed/connection broken
openRead = false;
tryRead = false;
break;
}
sysOut.println(serverInput);
}
multi = false;
// Exit client if connection lost/closed prematurely
if (openSocket == false || openRead == false) {
break;
}
// If user previously entered quit
if (userInput.length() >= 4 && userInput.substring(0, 4).equalsIgnoreCase("quit")) {
quitUser = true;
break;
}
// Get user input
userInput = ""; // Reset userInput to show prompt
// Read user input, display prompt if blank enter, otherwise send to server
while (userInput.equals("")) {
sysOut.print("C: ");
userInput = sysIn.readLine();
}
serverWriter.write(userInput, 0, userInput.length()); // Writing to server
serverWriter.newLine();
serverWriter.flush();
tryRead = true;
// Prepare for multi-line response if list, uidl, retr, or top
if (userInput.equalsIgnoreCase("list")
|| userInput.equalsIgnoreCase("uidl")
|| userInput.equalsIgnoreCase("auth")
|| (userInput.length() >= 4 && userInput.substring(0, 4).equalsIgnoreCase("capa"))
|| (userInput.length() >= 4 && userInput.substring(0, 4).equalsIgnoreCase("retr"))
|| (userInput.length() >= 4 && userInput.substring(0, 3).equalsIgnoreCase("top"))) {
multi = true;
}
}
// Clean up all connection objects
serverWriter.close();
serverReader.close();
clientSocket.close();
sysIn.close();
sysOut.close();
} catch (IOException e) {
System.err.println(e.toString());
}
}
/** Submits POST command to the server, and reads the reply. */
public boolean post(
String url,
String fileName,
String cryptToken,
String type,
String path,
String content,
String comment)
throws IOException {
String sep = "89692781418184";
while (content.indexOf(sep) != -1) sep += "x";
String message = makeMimeForm(fileName, cryptToken, type, path, content, comment, sep);
// for test
// URL server = new URL("http", "localhost", 80, savePath);
URL server =
new URL(getCodeBase().getProtocol(), getCodeBase().getHost(), getCodeBase().getPort(), url);
URLConnection connection = server.openConnection();
connection.setAllowUserInteraction(false);
connection.setDoOutput(true);
// connection.setDoInput(true);
connection.setUseCaches(false);
connection.setRequestProperty("Content-type", "multipart/form-data; boundary=" + sep);
connection.setRequestProperty("Content-length", Integer.toString(message.length()));
// System.out.println(url);
String replyString = null;
try {
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
out.writeBytes(message);
out.close();
// System.out.println("Wrote " + message.length() +
// " bytes to\n" + connection);
try {
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String reply = null;
while ((reply = in.readLine()) != null) {
if (reply.startsWith("ERROR ")) {
replyString = reply.substring("ERROR ".length());
}
}
in.close();
} catch (IOException ioe) {
replyString = ioe.toString();
}
} catch (UnknownServiceException use) {
replyString = use.getMessage();
System.out.println(message);
}
if (replyString != null) {
// System.out.println("---- Reply " + replyString);
if (replyString.startsWith("URL ")) {
URL eurl = getURL(replyString.substring("URL ".length()));
getAppletContext().showDocument(eurl);
} else if (replyString.startsWith("java.io.FileNotFoundException")) {
// debug; when run from appletviewer, the http connection
// is not available so write the file content
if (path.endsWith(".draw") || path.endsWith(".map")) System.out.println(content);
} else showStatus(replyString);
return false;
} else {
showStatus(url + " saved");
return true;
}
}
/**
* Creates source for sources with two orders: firstly in RIC, secondly in time.
*
* @param filePath complete filename and path containing prices.
* @param symbols set of symbols present into the file.
* @param lineProcessor strategy to part each line.
* @throws IOException if one symbol (at least) cannot be found.
*/
public MultipleSymbolScanner(
final String filePath,
final String[] symbols,
final LineParser lineParser,
final SpreadTradesMgr[] spreadTradesMgr)
throws IOException {
this.lineParser = lineParser;
this.spreadTradesMgr = spreadTradesMgr;
this.filePath = filePath;
this.symbols = symbols;
this.mainReader = new RandomAccessFile(filePath, "r");
this.partReader = new RandomAccessFile[symbols.length];
this.nextMilliseconds = new long[symbols.length];
this.nextLine = new String[symbols.length];
boolean optimisticJumps = true;
final ErrorControl errorControl = this.lineParser.getErrorControl();
this.lineParser.setErrorControl(LineParser.nullErrorControl);
final String cacheFilePath = filePath + ".cachejump";
if (new File(cacheFilePath).exists()) {
final ObjectInputStream cacheJumpsFileIn =
new ObjectInputStream(new FileInputStream(cacheFilePath));
log.info("Using stored cached jumps in file " + cacheFilePath);
try {
try {
for (; ; ) {
final String s = cacheJumpsFileIn.readUTF();
final long pos = cacheJumpsFileIn.readLong();
for (int i = 0; i < symbols.length; i++) {
if (symbols[i].equals(s)) {
partReader[i] = new RandomAccessFile(filePath, "r");
partReader[i].seek(pos);
log.info("Using cached information: position " + pos + " for " + s);
break;
}
}
}
} catch (IOException ioe) {
cacheJumpsFileIn.close();
}
for (int i = 0; i < partReader.length; i++) {
if (partReader[i] == null) {
throw new IOException("Symbol " + symbols[i] + " not placed");
}
}
} catch (IOException ioe) {
log.log(Level.SEVERE, ioe.toString(), ioe);
log.severe("Error reading file " + cacheFilePath + ". Removing");
new File(cacheFilePath).delete();
}
} else {
final ObjectOutputStream cacheJumpsFileOut =
new ObjectOutputStream(new FileOutputStream(cacheFilePath));
log.fine("Caching jumps for future uses in file " + cacheFilePath);
log.info("Scannig file to place reading pointers");
for (int i = 0; i < symbols.length; i++) {
long lastPosition = this.mainReader.getFilePointer();
long foundPosition;
log.fine("Starting to search symbol " + symbols[i] + " from position " + lastPosition);
for (; ; ) {
foundPosition = this.mainReader.getFilePointer();
final String line = readNextLineCycling(lastPosition);
if (line == null) {
// All file's been read without finding desired symbol.
throw new IOException(
"Cannot find symbol '" + symbols[i] + "' in file '" + filePath + "'");
}
if (this.lineParser.isValid(line)
&& symbols[i].equals(this.lineParser.getSymbol(line, 0))) {
break;
}
}
log.info("Located place for reader on " + symbols[i] + ":" + foundPosition);
cacheJumpsFileOut.writeUTF(symbols[i]);
cacheJumpsFileOut.writeLong(foundPosition);
partReader[i] = new RandomAccessFile(filePath, "r");
partReader[i].seek(foundPosition);
final int optimisticJump = (int) (2 * (foundPosition - lastPosition) / 3);
this.mainReader.skipBytes(optimisticJump);
}
cacheJumpsFileOut.flush();
cacheJumpsFileOut.close();
}
log.info("File scanned. Placing reading pointers");
// Boot up
for (int i = 0; i < symbols.length; i++) {
for (; ; ) {
try {
String line = partReader[i].readLine();
while (line != null && !this.lineParser.isValid(line)) {
line = partReader[i].readLine();
}
if (!symbols[i].equals(this.lineParser.parse(line).getSymbol(0))) {
this.nextLine[i] = null;
} else {
this.nextLine[i] = line;
this.nextMilliseconds[i] =
this.lineParser.parse(line).getUTCTimestampCopy().getTimeInMillis();
break;
}
} catch (Exception e) {
log.log(
Level.SEVERE, "Exception reading first line " + "of file '" + this.filePath + "'", e);
log.severe("Maybe cache file is not correct?");
}
}
}
log.info("Readers placed correctly. Source started");
this.lineParser.setErrorControl(errorControl);
}
