Constructing an Intelligent Agent using Java

Hi..
I'm doing my final year project which is Intelligent Agent in E-retail website. This agent act as an fashion designer that give advice to customers. When user key-in some information such as their height, weight, skin color and etc., the agent able to give advice which clothes that are most suitable for that particular customer. I don't have any idea on how to develop this agent and make it think like human. If some of you have any ideas, or coding that can help me to complete this project. It is very important to me.
Really need your help.
Can e-mail me at [email protected]

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//========================== MsgSwitch.java ===========================//
package pkwnet.msgswitch;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.util.logging.Handler;
* main class for message switch
* command line arguments are
* -p port number for server
* -s run server
* -a server ip address including port for client
* -i idle timer in seconds
* -n use NIO
* -c specify connection class
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    static private int errors = 0;
    static private String address = "127.0.0.1:6060";
    static private String connectionClass = "pkwnet.msgswitch.StreamConnection";
    static public void main(String [] args) {
        int port = 6060;
        int idleTime = 600;
        boolean server = false;
        boolean nio = false;
        Logger logger = Logger.getLogger("msgswitch");
        for(String arg : args) {
            if(arg.startsWith("-a")) {
                address = arg.substring(2);
            } else if(arg.startsWith("-p")) {
                port = argToInt(arg);
                server = true;
            } else if(arg.startsWith("-i")) {
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            } else if (arg.startsWith("-s")) {
                server = true;
            } else if (arg.startsWith("-c")) {
                connectionClass = arg.substring(2);
            } else if (arg.startsWith("-n")) {
                connectionClass = "pkwnet.msgswitch.NIOConnection";
            } else {
                String err = "unknown argument=" + arg;
                logger.severe(err);
                System.err.println(err);
                errors++;
        if (errors == 0) {
            if (server) {
                new Server().listen(port,idleTime, nio);
            } else {
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        } else {
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    static private int argToInt(String arg) {
        int val = 0;
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            val = Integer.parseInt(arg.substring(2));
        } catch (NumberFormatException e) {
            String err = "invalid argument format: " + arg;
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            System.err.println(err);
            errors++;
        return val;
    static public void fail(String err, Throwable e) {
        String msg = "Operation terminated: " + err;
        Logger.getLogger("msgswitch").log(Level.SEVERE, msg, e);
        System.err.println(msg);
        System.exit(12);
    static public Connection getConnection() {
        Connection conn = null;
        try {
            conn = (Connection) Class.forName(connectionClass).newInstance();
        } catch (Exception e) {
            fail ("connection class error", e);
        return conn;
    static public void logCaller(Logger logger, Level level) {
        String text = "CALLED";
        if (logger.isLoggable(level)) {
            try {
                throw new Exception("logging stack");
            } catch (Exception e) {
                StackTraceElement [] st = e.getStackTrace();
                if (st.length > 1) {
                    text += formatElement(st[1]);
                if (st.length >2) {
                    text += formatElement(st[2]);
            logger.log(level, text);
    static private String formatElement(StackTraceElement ste) {
        return "\n    " + ste.getClassName() + "." + ste.getMethodName()
            + "(" + ste.getFileName() + ":" + ste.getLineNumber() + ")";
//================= Client.java =============================================//
package pkwnet.msgswitch;
* a simple Swing chat GUI using Java 5 and sockets.
* @author PKWooster
* @version 1.0 August 31,2005
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JTextArea;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JMenu;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JDialog;
import javax.swing.SwingUtilities;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.BorderLayout;
import static java.awt.BorderLayout.*;
client GUI class
public class Client extends JFrame implements ConnectionListener {
     // swing GUI components
     private JTextField userText = new JTextField(40);
     private JTextArea sessionLog = new JTextArea(24,40);
     private JTextField statusText = new JTextField(40);
     private JPanel outPanel = new JPanel();
     private JScrollPane sessionLogScroll = new JScrollPane(sessionLog);
     private JMenuBar menuBar = new JMenuBar();
     private JMenuItem startItem = new JMenuItem("Start");
     private JMenuItem hostItem = new JMenuItem("Host");
     private JMenuItem aboutItem = new JMenuItem("About");
     private JMenuItem abortItem = new JMenuItem("Abort");
     private JMenuItem exitItem = new JMenuItem("Exit");
     private JMenu fileMenu = new JMenu("File");
     private JMenu helpMenu = new JMenu("Help");
     private Container cp;
     private String address;
    private Connection connection;
    private boolean sendReady = false;
    private boolean nio = false;
     Client() {
    public void start(String address, boolean nio) {
        this.address = address;
        this.nio = nio;
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                runClient();
    private void runClient() {
        connection = MsgSwitch.getConnection();
        connection.addConnectionListener(this);
          buildMenu();
          cp = getContentPane();
          sessionLog.setEditable(false);
          outPanel.add(new JLabel("Send: "));
          outPanel.add(userText);
          // enter on userText causes transmit
          userText.addActionListener(new ActionListener(){
               public void actionPerformed(ActionEvent evt){userTyped(evt);}
          cp.setLayout(new BorderLayout());
          cp.add(outPanel,NORTH);
          cp.add(sessionLogScroll,CENTER);
          cp.add(statusText,SOUTH);
          setStatus("Closed");
          addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent evt) {
                mnuExit();
          pack();
        setVisible(true);
* attempt to send the contents of the user text field
    private void userTyped(ActionEvent evt) {
        if (sendReady) {
            String txt = evt.getActionCommand()+"\n";
            userText.setText("");
            toSessionLog("> ", txt);
            sendReady = false;
            connection.send(txt);
* append text to the session log
     private void toSessionLog(String prefix, String txt) {
          sessionLog.append(prefix + txt);
          sessionLog.setCaretPosition(sessionLog.getDocument().getLength() ); // force last line visible
* build the standard menu bar
     private void buildMenu()
          JMenuItem item;
          // file menu
          startItem.addActionListener(new ActionListener()
          {public void actionPerformed(ActionEvent e){mnuStart();}});
          fileMenu.add(startItem);
          hostItem.addActionListener(new ActionListener()
          {public void actionPerformed(ActionEvent e){mnuHost();}});
          fileMenu.add(hostItem);
          exitItem.addActionListener(new ActionListener()
          {public void actionPerformed(ActionEvent e){mnuExit();}});
          fileMenu.add(exitItem);
          menuBar.add(fileMenu);
          helpMenu.add(aboutItem);
          aboutItem.addActionListener(new ActionListener()
          {public void actionPerformed(ActionEvent e){mnuAbout();}});
          menuBar.add(helpMenu);
          setJMenuBar(menuBar);
* start and stop communications from start menu
     private void mnuStart() {
        if(connection.getState() == Connection.State.CLOSED) {
            connection.connect(address);
        } else {
            connection.disconnect();
* prompt user for host in form address:port
    private void mnuHost() {
          String txt = JOptionPane.showInputDialog("Enter host address:port", connection.getAddress());
          if (txt == null)return;
        address = txt;
     private void mnuAbout() {
          JDialog dialog = new JDialog(this, "About Client");
          JTextField text = new JTextField("Simple character client");
        dialog.getContentPane().add(text);
        dialog.pack();
        dialog.setVisible(true);
     // exit menu
     private void mnuExit() {
        exit();
    private void exit() {
          connection.disconnect();
          System.exit(0);
     private void setStatus(String st) {
        statusText.setText(st);
     private void setStatus(Connection.State state) {
        switch(state) {
            case OPENED:
                startItem.setText("Stop");
                setStatus("Connected to "+address);
                break;
            case CLOSED:
                startItem.setText("Start");
                setStatus("Disconnected");
                break;
            case OPENING:
                setStatus("Connecting to "+address);
                startItem.setText("Abort");
                break;
            case CLOSING:
                setStatus("Disconnecting from "+address);
                startItem.setText("Abort");
                break;
    public void stateChanged(final ConnectionEvent event) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                setStatus(event.getState());
    public void dataAvailable(final ConnectionEvent event) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                setStatus(event.getState());
                String txt = event.getData();
                if (txt == null) {
                    txt = "$null$";
                toSessionLog("< ", txt + "\n");
    public void sendAllowed(final ConnectionEvent event) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                setStatus(event.getState());
                sendReady = true;
    public void accept(ConnectionEvent event) {
//========================== Server.java ===============================//
package pkwnet.msgswitch;
import java.io.*;
import java.net.*;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
* a simple message switch using stream based socket i/o
* a very simple text message switching program
* user commands start with $ and consist of blank seperated arguments
* other lines sent by the user are forwarded
* $on nickname targets
*    sign on as nickname, sending to targets
* $to targets
*    change target list, reports current value
* $list nicknames
*    list status of specified nicknames
* $list
*    list all connected users
* $off
*    sign off
* @author PKWooster
* @version 1.0 September 1, 2005
public class Server {
    private ConcurrentHashMap<String, User> perUser = new ConcurrentHashMap<String,User>();
    private Timer idleTimer;
    private Connection conn;
    public void listen(int port, final int idleTime, boolean nio) {
        idleTimer = new Timer();
        idleTimer.scheduleAtFixedRate(new TimerTask(){public void run(){oneSec();}},0,1000);
        conn = MsgSwitch.getConnection();
        conn.addConnectionListener(new ConnectionListener() {
            public void stateChanged(ConnectionEvent event) {
            public void dataAvailable(ConnectionEvent event) {
            public void sendAllowed(ConnectionEvent event) {
            public void accept(ConnectionEvent event) {
                Connection uconn = event.getConnection();
                new User(uconn, perUser, idleTime);
        conn.listen(port);
        idleTimer.cancel();
    private void oneSec() {
        Collection<User> uc = perUser.values();
        for(User u : uc) {
            u.oneSec();
//================= User.java ==============================================//
package pkwnet.msgswitch;
import java.io.*;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Logger;
import java.util.logging.Level;
* defines the processing for a message switch user
* @author PKWooster
* @version 1.0 June 15,2004
public class User implements ConnectionListener {
    private ConcurrentHashMap<String, User> perUser;
    private String name;
    private String address;
    private boolean signedOn = false;
    private String[] targets;
    private AtomicInteger remainingTime;
    private int idleTime;
    Connection conn;
    Logger logger;
* construct a user, link it to its connection and put it in the perUser table
    User(Connection conn, ConcurrentHashMap<String,User>p, int idle) {
        this.conn = conn;
        logger = Logger.getLogger("msgswitch.user");
        conn.addConnectionListener(this);
        address = conn.getAddress();
        logger.info("creating user " + address);
        perUser = p;
        idleTime = idle;
        remainingTime = new AtomicInteger(idleTime);
        rename(address);
        targets = new String[0];
* process state changes
    public void stateChanged(ConnectionEvent event) {
        if(event.getState() == Connection.State.CLOSED) {
            close(false);
* data is available, process commands and forward other data.
    public void dataAvailable(ConnectionEvent event) {
        String msg = event.getData();
        if (msg.startsWith("$")) {
            doCommand(msg);
        } else {
            forward(msg);
        remainingTime.set(idleTime);
* do nothing for sendAllowed events
    public void sendAllowed(ConnectionEvent event) {
* do nothing for accept events
    public void accept(ConnectionEvent event) {
* called once per second by the server main thread.
    public void oneSec() {
        if(idleTime != 0 && 1 > remainingTime.decrementAndGet()) {
            close(true);
* send a message
    private void send(String msg) {
        conn.send(msg);
        remainingTime.set(idleTime);
* forward data messages to other users
* @param txt the message to send
    private void forward(String txt) {
        txt = name+": "+txt + "\n";
        if(0 < targets.length) {
            for(String target :targets) {
                User user = perUser.get(target);
                if(user != null) {
                    user.send(txt);
        } else {
            for (User user : perUser.values()) {
                if (user != this) {
                    user.send(txt);
* execute command messages, commands start with a $
* and contain arguments delimited by white space.
* @param command the command string
    private void doCommand(String command) {
        boolean good = false;
        command = command.substring(1).trim();
        if(command.length() > 0) {
            String [] args = command.split("\\s+");
            if(args[0].equals("on")) {
                good = signOn(args);
            } else if(args[0].equals("off")) {
                good = signOff(args);
            } else if(args[0].equals("list")) {
                good = listUsers(args);
            } else if(args[0].equals("to")) {
                good = setTargets(args,1);
            } else if(args[0].equals("idle")) {
                good = setIdle(args);
            if(!good) {
                send("invalid command=" + command + "\n");
* sign on command
    private boolean signOn(String [] args) {
        boolean good = false;
        if(args.length >1) {
            String nm = args[1];
            logger.info("signing on as: " + nm);
            if(rename(nm)) {
                conn.setName(name);
                send("Signed on as " + name + "\n");
                signedOn = true;
                good = true;
                setTargets(args,2);
            } else {
                send("name="+nm+" already signed on\n");
        return good;
* set forwarding targets
    private boolean setTargets(String [] args, int start) {
        if(start < args.length) {
            targets = new String[args.length-start];
            System.arraycopy(args, start, targets, 0, targets.length);
        String str = "to=";
        for(String target : targets) {
            str += (target + " ");
        send(str+"\n");
        return true;
* set idle timeout
    private boolean setIdle(String[] args) {
        try {
            idleTime = new Integer(args[1]).intValue();
            remainingTime.set(idleTime);
            send("idle time set to "+idleTime+"\r\n");
            return true;
        } catch(NumberFormatException exc) {
            return false;
* sign off
    private boolean signOff(String [] args) {
        close(true);
        return true;
* list connected users
    private boolean listUsers(String [] args) {
        TreeSet<String> allUsers = new TreeSet<String>(perUser.keySet());
        HashSet<String> t = new HashSet<String>(Arrays.asList(targets));
        LinkedList<String> users;
        String response = "On,Target,Nickname\n";
        if(args.length < 2) {
            users = new LinkedList<String>(allUsers);
        } else {
            users = new LinkedList<String>();
            for (int i = 1; i < args.length; i++) {
                users.add(args);
for(String username : users) {
if(username.equals(name)) {
response += "*,";
} else {
response += (allUsers.contains(username) ? "y," : "n,");
response += (t.contains(username) ? "y," : "n,");
response += (username + "\n");
send(response);
return true;
* rename this user, first we attempt to add the new name then we remove
* the old one. Both names will be registered for a short while.
* @param newname the new name for this user
* @return true if the rename was successful
private boolean rename(String newname) {
boolean b = false;
logger.info("rename name="+name+" newname="+newname);
if (name != null && name.equals(newname)) {
b = true;
} else if (null == perUser.putIfAbsent(newname, this)) {
if (name != null) {
perUser.remove(name);
name = newname;
b = true;
return b;
* delete from perUser and close our connection
private void close(boolean disconnect) {
logger.info("closing user "+name);
perUser.remove(name);
if (disconnect) {
conn.disconnect();
//====================== Connection.java ===============================//
package pkwnet.msgswitch;
import java.util.HashSet;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.logging.Logger;
import java.util.logging.Level;
public abstract class Connection {
public enum State {CLOSED, OPENING, OPENED, CLOSING}
private HashSet<ConnectionListener> listeners = new HashSet<ConnectionListener>();
private State state = State.CLOSED;
private String host = "127.0.0.1";
private int port = 6060;
private String name = "unconnected";
public Connection() {
public abstract void listen(int port);
public abstract void connect(String address);
public abstract void disconnect();
public abstract void send(String message);
public void addConnectionListener(ConnectionListener listener) {
listeners.add(listener);
public void removeConnectionListener(ConnectionListener listener) {
listeners.remove(listener);
protected void fireDataAvailable(String data) {
for (ConnectionListener listener : listeners) {
listener.dataAvailable(new ConnectionEvent(this, state, data));
private void fireStateChanged() {
for (ConnectionListener listener : listeners) {
listener.stateChanged(new ConnectionEvent(this, state));
protected void fireSendAllowed() {
for (ConnectionListener listener : listeners) {
listener.sendAllowed(new ConnectionEvent(this, state));
protected void fireAccept(Connection conn) {
for (ConnectionListener listener : listeners) {
listener.accept(new ConnectionEvent(this, conn));
protected void setState(State state) {
if (this.state != state) {
this.state = state;
fireStateChanged();
public State getState() {
return state;
protected void setAddress(String address) {
          int n = address.indexOf(':');
          String pt = null;
setName(address);
if(n == 0) {
               host = "127.0.0.1";
               pt = address.substring(1);
          else if(n < 0) {
               host = address;
               port = 5050;
          } else {
host = address.substring(0,n);
               pt = address.substring(n+1);
if (pt != null) {
try {
port = Integer.parseInt(pt);
} catch (NumberFormatException e) {
port = -1;
public String getName() {
return name;
public void setName(String value) {
name = value;
public String getAddress() {
return host + ":" + port;
public String getHost() {
return host;
public void setPort(int value) {
port = value;
public int getPort() {
return port;
//=================== ConnectionEvent.java ================================//
package pkwnet.msgswitch;
public class ConnectionEvent extends java.util.EventObject {
private final String data;
private final Connection.State state;
private final Connection conn;
public ConnectionEvent(Object source, Connection.State state, String data, Connection conn) {
super(source);
this.state = state;
this.data = data;
this.conn = conn;
public ConnectionEvent(Object source, Connection.State state, String data) {
this(source, state, data, null);
public ConnectionEvent(Object source, Connection.State state) {
this(source, state, null, null);
public ConnectionEvent(Object source, Connection conn) {
this(source, conn.getState(), null, conn);
public Connection.State getState() {
return state;
public String getData() {
return data;
public Connection getConnection() {
return conn;
//============================ ConnectionListener.java ===================//
package pkwnet.msgswitch;
public interface ConnectionListener extends java.util.EventListener {
public void stateChanged(ConnectionEvent event);
public void dataAvailable(ConnectionEvent event);
public void sendAllowed(ConnectionEvent event);
public void accept(ConnectionEvent event);
//============================ StreamConnection.java ===================//
package pkwnet.msgswitch;
import java.net.Socket;
import java.net.ServerSocket;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.IOException;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.logging.Logger;
import java.util.logging.Level;
* provides stream socket i/o of character strings
* @author PKWooster
* @version 1.0 September 1, 2005
public class StreamConnection extends Connection {
private Socket sock;
private BufferedReader in;
private BufferedWriter out;
private Thread recvThread = null;
private Thread sendThread = null;
protected LinkedBlockingQueue<String> sendQ;
Logger logger;
public StreamConnection() {
super();
logger = Logger.getLogger("msgswitch.stream");
sendQ = new LinkedBlockingQueue<String>();
* open a socket and start i/o threads
public void connect(String ipAddress) {
setAddress(ipAddress);
try {
sock = new Socket(getHost(), getPort());
connect(sock);
} catch (IOException e) {
logger.log(Level.SEVERE, "Connection failed to=" + ipAddress, e);
private void connect(Socket sock) {
this.sock = sock;
String ipAddress = getAddress();
try {
in = new BufferedReader(new InputStreamReader(sock.getInputStream()));
out = new BufferedWriter(new OutputStreamWriter(sock.getOutputStream()));
recvThread = new Thread(new Runnable() {
public void run() {
doRecv();
},"Recv." + getName());
sendThread = new Thread(new Runnable() {
public void run() {
doSend();
},"Send."+getName());
sendThread.start();
recvThread.start();
setState(State.OPENED);
} catch(IOException e) {
logger.log(Level.SEVERE, "Connection failed to="+ipAddress, e);
public void listen(int port) {
StreamConnection sconn;
setPort(port);
try {
ServerSocket ss = new ServerSocket(port);
while(true) {
Socket us = ss.accept();
sconn = new StreamConnection();
String ipAddress = us.getInetAddress() + ":" + us.getPort();
sconn.setAddress(ipAddress);
sconn.connect(us);
fireAccept(sconn);
} catch(Exception e) {
logger.log(Level.SEVERE, "listen failed", e);
* close the socket connection
public void disconnect() {
logger.fine("disconnect sock=" + sock + " state="+ getState());
if(getState() == State.OPENED) {
setState(State.CLOSING);
try {
sock.shutdownOutput();
} catch(IOException ie) {
logger.log(Level.SEVERE, "showdown failed", ie);
} else if(getState() != State.CLOSED) {
try {
sock.close();
} catch(Exception e) {
logger.log(Level.SEVERE, "close failed", e);
if (sendThread.isAlive()) {
sendThread.interrupt();
sendQ.clear();
setState(State.CLOSED);
public void send(String message) {
if (getState() == State.OPENED) {
try {
sendQ.put(message);
} catch(InterruptedException e) {
logger.log(Level.SEVERE, "sendQ put interrupted", e);
setState(State.CLOSING);
disconnect();
* sets the public name of this connection
public void setName(String name) {
super.setName(name);
if (sendThread != null) {
try {
recvThread.setName("recv." + name);
sendThread.setName("send." + name);
} catch(Exception e) {
logger.log(Level.SEVERE, "nameing threads failed", e);
* the main loop for the send thread
private void doSend() {
String msg;
boolean running = true;
while (running) {
if (sendQ.size() == 0) {
fireSendAllowed();
try {
msg = sendQ.take();
out.write(msg);
out.flush();
} catch(Exception e) {
if (getState() == State.OPENED) {
logger.log(Level.SEVERE, "write failed", e);
setState(State.CLOSING);
disconnect();
running = false;
* the main loop for the receive thread
private void doRecv() {
String inbuf;
while (getState() == State.OPENED) {
try {
inbuf = in.readLine();
} catch(Exception e) {
if (getState() == State.OPENED) {
logger.log(Level.SEVERE, "readline failed", e);
inbuf = null;
if(inbuf == null) {
logger.fine("null received on: " + getAdd

Here are three of them:
NIO server
NIO client
Multithreaded server
The stream based client example seems to have been deleted, probably lost in the troll wars. I also posted a new Simple multithreaded server that uses the same protocol. As the client is missing, I'll repost it.

Upgrading 9.2.0.6 intelligent agent

On my database of version 9.2.0.6, I believe the oracle intelligent agent there is same version -- 9.2.0.6.
What latest version can I upgrade the agent to? Or the only thing I can do next is to upgrade it to use of 10g Grid control?
I just want to clear my thoughts
Thanks

Hi,
Here are the Oracle docs on 10g upgrades:
http://www.oracle.com/pls/db10g/homepage
Here are some other good notes:
http://www.oracle-base.com/articles/10g/UpgradingTo10g.php
Also, there are many "gotchas" to consider, especially the change to optimizer costing in 10g:
http://www.dba-oracle.com/t_slow_performance_after_upgrade.htm
Hope this helps . . .
Donald K. Burleson
Oracle Press author

8.1.7 Intelligent Agent on Redhat Linux 6.2

Hello,
Can anyone help?
My OEM fails to discover a Redhat Linux node but I can manually configure it (so the node address must be OK). When I check that the agent is running (lsnrctl dbsnmp_agent) it says that the db subagent is already running. If there is something obvious, I've probably missed it because I'm relatively new to both Oracle and Linux/Unix. Any clues, please?

I found this reply on Oracle Metalink and it worked for me (looks like agent on Linux for some reason does not use default ports:
On IA nodes, edit the snmp_rw.ora file and add the following lines :
DBSNMP.ADDRESS = (ADDRESS=(PROTOCOL=tcp)(HOST=<ip-address>)(PORT=1748))
DBSNMP.SPAWNADDRESS = (ADDRESS=(PROTOCOL=tcp)(HOST=<ip-address>)(PORT=
1754))
where <ip-address> is the IP-Address of the node to be discovered.
Note: ports 1748/1754 must be open for the OMS to communicate with the Agent.
The OMS starts communication on ports 1748 and 1754 to get the discovery
information from the Intelligent Agent.
The ports 1748 and 1754 are dedicated for the Intelligent Agent, and should
not be used by any other program.
Ports used by the Intelligent Agent:
++++++++++++++++++++++++++
During the discovery phase, the Communication Daemon OMS
will contact the Intelligent Agent via the ports 1748 and 1754 and retrieve
the discovery information.
Port 1748 is used for the basic communication, while the port 1754 is
used for file transfer. The communication is always initiated from the
Communication Daemon or OMS towards the Intelligent Agent.
The ports are hardcoded in the Intelligent Agent and should not be altered
in any way. The ports are referenced in the snmp_rw.ora file as:
dbsnmp.address=(address=(protocol=tcp)(host=somehostname)(port=1748))
dbsnmp.spawnaddress=(address=(protocol=tcp)(host=somehostname)(port=1754))
The meaning of the dbsnmp.address and dbsnmp.spawnaddress are solely to
determine the resolution path for the Enterprise Manager framework to get
in touch with the Intelligent Agent, and should not be used to specify
other ports.

Oracle 8i Intelligent Agent Service problem

Hi!
We successfully installed Oracle 8i (8.1.7 ee) on Intel P-IV (Xeon) server running Windows 2000 Advanced server (Service Pack 2). It was working properly until now. There was no problem in implementing the tricks useful in installation. After that, database service "OracleService<DBName>" presented problem by not automatically starting on computer startup but it was tamed by "Oradim" command added to startup folder.
All was going smoothly for about a month now but when I rebooted the server PC yesterday, the service "Oracle<HomeName>Agent" failed to start. Along with it the DataGatherer and TNSListener services also failed (Only db service OracleService<DBName> starts but very very slowly). The Windows Event Viewer descriped the problme for Agent service as ,"The Oracle<HomeName>Agent service terminated with the following error: %%3221356551 ". The Event ID is always 7023 for this error. The rest of services just don't give any error codes. It is also stated that nothing has been installed/Uninstalled on this PC in the last several days and no configration changes, in tnsnames.ora, sqlnet.ora, listener.ora, win registry has been made. The TCP/IP configration are intact and NTFS folder and file rights are properly defined.
Starting the service using "Net Start <service_name>" also failed with the message,"System error 7 has occured, Storage control blocks will be destroyed".
Searching online, I also performed some steps in correcting the problem like backup and delete all *.q, snmp_ro.ora, snmp_rw.ora, services.ora files. But to no help. The log files in Oracle_Home\network\logs also dont record the problem even after setting the trace level to Admin or 16. The Agent service simply refuses to start...
Reinstalling Oracle (over existing one, not first removing it altogether. We simply cann't do this now for data loss!!!) or just the Intelligent Agent itsself using univeral installer also fails at the end when it tries to start the intellegent Agent Service Oracle<HomeName>Agent. This time the error described is "O/S error in starting service".
Is this something to do with Xeon server coz the same Oracle 8i is installed much before than this on another P-IV server (not xeon) running the same Op system and it never presented us this problem todate. Its also worth mentioning that this problem occured before as well, on the second day we installed Oracle 8i the first time on Xeon. Since there was no data then, we simply removed oracle, cleared registry and started all over again BUT now it cann't be done.
Any help shall be highly appreciated.
With Regards, Rashid.
SeaBird505 at yahoo.com

Thanks for stopping by this thread. Problem has been resolved from another forum. Actually c:\oracle folder was accessable to administrator only, when I added 'Everyone' to the permission list as well, everything started fine. Allowing 'Everyone' to this folder is dangerous but its working for now :)

Iterate through all the records in a table using Java API

Hi All,
What is the easiest way to iterate through all the records in a given table using Java API? I cannot find any methods that will return all records in a table and the only way I can use is to perform a free form search with a condition that is always true. The code works but is pretty ugly. Is there an alternative to this approach?
Thanks!
Kenny

Hi Kenny,
You can construct a new Search object with your table's code name, a new ResultSetDefinition object for your table and just execute this search using the GetResultSet method of CatalogData.
Please look at the following code:
Search search = new Search(<code name of your table>);
ResultSetDefinition rsd = new ResultSetDefinition(<code name of your table>);
rsd.AddField<code name of a field>);
rsd.AddField(<code name of a field>);
String sortField = <code name of your sort field>;
boolean sortAscending = true;
int page = 0; //page number
A2iResultSet rs = <your CatalogData object>.GetResultSet(search, rsd, sortField, sortAscending, page);
for (int i = 0; i < rs.GetRecordCount(); i++)
Value fieldValue = rs.GetValueAt(i, <code name of a field>);
Hope this helps,
Nir
PS - I really recommend you to start using the new API, as it is much more efficient and straight-forward.

Creating a PDF by using Java

Is it possible to create a PDF file using Java
Is there any API/class there exists in java
Can any one help me
Hope some intelligent peoples are there to help me
make a reply to me at
[email protected]

There's:
http://www.lowagie.com/iText/
If you're working with xml, maybe this one:
http://xml.apache.org/fop/index.html
regards.

Using Java for dynamic web page content

I've currently got a Perl program that I'd like to convert to Java. It merges two files that are stored on a web server and generates a "dynamic" HTML response.
For example, if I have the following files on the server:
File1:
<Comment1>This stuff</Comment1>
<Comment2>That stuff</Comment2>
File2:
<HTML>
<Comment1><br><Comment2>
</HTML>
When I go to the URL
www.mysite.com\cgibin\merge.pl?file1&file2
the Perl program will produce a web page saying:
This stuff
That stuff
The major obstical for the rewrite: NO JSP ALLOWED. It's not allowed by the ISP.
Now for the questions:
- Could this be done using Java?
- How could I initiate the Java app and pass it the parameters? (applet tag, access Java inside Perl, use Java Script somehow)
- Will an applet tag even work for this since the final page is generated completely from other files?
Thank you very much for your help.

If your ISP don't support JSP / Servlets,
1.use any server side technolgy, something like ASP.
2.Read the files and transform them as Strings (or StringBuffers).
3.Pass these Strings as parameters to the applet (if you are forced to use java technology, otherwise you can do it using ASP itself).
4.Construct the required format (content) in your applet.
Don't forget that the stuff will be in applet but not a complete web page. The ideal solution is asking your ISP to provide JSP engine.

ZenWorks Agent and Java 1.7

I am working to use ZenWorks to patch all of our SLES/RedHat servers and I am having issues on the very first client I am trying to set up. When I try to install the agent, using either the complete or network install .bin, I run into the following error....
Cmd: '/bin/sh /opt/novell/zenworks/stage/installJava.sh INSTALL_JRE'
Exiting with error code -1.
Exiting with error code 255.
I realize that this is because my server already has JDK7 installed on it. The servers that I need ZenWorks to patch are production servers which require an updated java (and by updated, I require Java 7 - not the most up to date Java 6). I cannot simply uninstall JDK7 to allow the Zen Agent Installer to install the old JRE without breaking production servers. I found TID 7010783, but it does not quite solve my problem.
Any help that can be offered is appreciated!

Ahilton,
look at the "cause" section of the TID "Prior to 11.3, the ZENworks xplat agent has problems with jre 1.7 due to new security features in the jre", is that a clue?
Shaun Pond

How to set Password protection in excel using java

Dear all,
I have no idea to write a java program that how to set password protection in excel. Please give me some solution using java tools. Thank a lot!
Regards,
kzyo

Dear Bamkin ,
I used your code and paste it in my program. The error is as the follow:
Code:
     stmnt = c.createStatement();
               String query = "select StudentNumber, Email, New_Email_Address from [Sheet1$] where Len(New_Email_Address) > 0";
               System.out.println(query);
               rs = stmnt.executeQuery(query);
               stmnt.executeUpdate("SET PASSWORD=PASSWORD('Test')");
Error:
(Remark: Invalid SQL statement)
java.sql.SQLException: [Microsoft][ODBC Excel Driver] ��I SQL ��q��G�a��'DELETE'�A'INSERT'�A'PROCEDURE'�A'SELECT' �� 'UPDATE' �B
     at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6958)
     at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7115)
     at sun.jdbc.odbc.JdbcOdbc.SQLExecDirect(JdbcOdbc.java:3111)
     at sun.jdbc.odbc.JdbcOdbcStatement.execute(JdbcOdbcStatement.java:338)
     at sun.jdbc.odbc.JdbcOdbcStatement.executeUpdate(JdbcOdbcStatement.java:288)
     at hk.gov.edb.util.ExcelHandle.updateNewEmail(ExcelHandle.java:414)
     at hk.gov.edb.core.AppMain.doUpdate(AppMain.java:369)
     at hk.gov.edb.core.AppMain$7.construct(AppMain.java:584)
     at hk.gov.edb.util.SwingWorker$2.run(SwingWorker.java:127)
     at java.lang.Thread.run(Thread.java:595)

Using java.util.logging Properly

Hello,
I have implemented java.util.logging in my application by creating a kind of "wrapper" class that I call for handling logging. It doesn't extend the logging classes, it just provides an object with helper methods that I can call when I want it.
public class LogCleanerLogger {
    private static final String cleanerLogfile = "logcleanerlog%g.txt";
    private static final String loggerName = "LogCleaner";
    private Logger cleanerLogger = null;
    public LogCleanerLogger() throws IOException{
        this.cleanerLogger = Logger.getLogger(getLoggerName());
        cleanerLogger.setUseParentHandlers(false);
        FileHandler logFile = new FileHandler(getCleanerLogfile(),10000,1, true);
        logFile.setFormatter(new SimpleFormatter());
        cleanerLogger.addHandler(logFile);
    public void writeLogInfoMessage(String message){
        cleanerLogger.info(message);
    public void writeLogWarningMessage(String message){
        cleanerLogger.warning(message);
    public void writeLogErrorMessage(String message){
        cleanerLogger.severe(message);
// getters and setters
} // end class    This all works quite happily and I can log any information I want. Except for one thing -- my log directory ends up with the log file (logcleanerlog0.txt) and a list of what appear to be temporary logs, e.g. logcleanerlog0.txt.1, logcleanerlog0.txt.2, and so on. Each increment of the number corresponds to a log file that has progressively less information in it that the previous one. At the top level, the unnumbered log, logcleanerlog0.txt, has all the logged information in it.
I cannot make out, from reading the API and other documentation, how I can get rid of these other files, which appear to me to be temporary files used in the construction of the top level file.
Can someone help me by explaining the mechanism for generating these files and either (a) how I can get rid of them altogether or (b) how I can arrange for them to be generated in a temp dir, while keeping the main log in the present directory (application root).
Or perhaps there is a "better way" (that is equally as easy, of course ;-).
Thanks.
mp

are you sure you cannot use the classes from a newer
version. You can put those classes in your own
directory. If there ar some other classes that need to
be from the newer version, you can include them, also
in your project. It is important that your project
directory to be placed in the classpath variable
before the jdk jars.
(this solution might not work)I doubt that is worth trying.
First, although it probably does not apply in this case, you are not allowed to distribute part of a JVM. So you could never use this solution in a commercial application.
Secondly the Java API does change. And every execution path that might use the changed code would have to be tested. That is going to take a lot of work. Keep in mind that the logging api uses java.lang.String and java.lang.String definitely changed in 1.4 and almost every class in the Java API uses it.

Constructing an Intelligent Agent using Java

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