Desing input needed: JMS in cluster(s) for OSB
Hi
I have two admin servers prod A and prod B on two separate physical boxes.
prod A has managed servers MS1 and MS2. : Together they form cluster A
prod B has MS3 and MS4.: Together they form cluster B
Client forwards request to a loadbalancer which forwards request to either prod A or prod B based on load in environment.
Use case: I have to push some data in JMS queue on server. Client will call periodically and hit one OSB proxy service which basically gets data from queue and returns. Since I have two clusters thus I need to create two queues, one each on prod A and prod B. Now consider following scenario:
Client hits loadbalancer
loadbalancer forwards request to prod A. Queue on prod A was empty.
since I get empty response, I forward the same to prod B. Queue on prod B had data so returned it to client.
Here issue is I need to have communication between prod A and prod B. Also I need to implement manual fail over in case prod A or prod B is down.
My question is :-
Can more than one clusters, if they are not aware of each other (if they do - then together they form a single cluster if I am not wrong) share resources such as queues?
May be I am not clear or couple of concepts of mine are wrong...;-)
Please share your thoughts.
Thanks and Regards
Swapnil Kharwadkar
Barnes,
Thanks for such a nice explaination. Let me tell what i did ealier for my set up and what is the problem i have right now.
I deployed the application which is using the JMS in the single cluster environment which has 2 managed servers each from different physical servers.
I configured one connection factory with the preoper JNDI name and default delivery mode as non persistant and deployed the connection factorey on the cluster in which i deployed the application.
I configured one JMS server and deployed in one of the servers from the cluster with migratable method and persistant store as none.
I configured one destination under this created JMS server and replicated the JNDI name in the cluster.
The application can access the message from the queue on the server in which i deployed the JMS server, not from the other one, though i deployed the server with migratable service. This is the problem i cant access from the other server.
I am not sure what i am doing wrong or what made me wrong. Please help me out.
Jasmine
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DO i need some extra hardware interface for receving both Audio and video
hi i m doing e-learning project. i have to capture video from webcam and voice from headphone and send to client.
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After running TX
i give Dsound:// & vfw://0 in Media Locater only sound is received and no vedio
and when i give vfw://0 in Media Locater only live video is transmited.
im using JMF1.1.2e.
if any one know the method to run or cause of it plz reply me soon. i will be very thankfull
transmiter/server side code .first run TX on server
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.util.*;
import javax.media.rtp.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
public class Tx extends JFrame implements ActionListener, KeyListener,
MouseListener, WindowListener {
Vector targets;
JList list;
JButton startXmit;
JButton rtcp;
JButton update;
JButton expiration;
JButton statistics;
JButton addTarget;
JButton removeTarget;
JTextField tf_remote_address;
JTextField tf_remote_data_port;
JTextField tf_media_file;
JTextField tf_data_port;
TargetListModel listModel;
AVTransmitter avTransmitter;
RTCPViewer rtcpViewer;
JCheckBox cb_loop;
Config config;
public Tx() {
setTitle( "JMF/RTP Transmitter");
config= new Config();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
JPanel p= new JPanel();
p.setLayout( gridBagLayout);
JPanel localPanel= createLocalPanel();
gbc= new GridBagConstraints();
gbc.gridx= 0;
gbc.gridy= 0;
gbc.gridwidth= 2;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( localPanel, gbc);
p.add( localPanel);
JPanel targetPanel= createTargetPanel();
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 1;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( targetPanel, gbc);
p.add( targetPanel);
JPanel mediaPanel= createMediaPanel();
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 2;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( mediaPanel, gbc);
p.add( mediaPanel);
JPanel buttonPanel= new JPanel();
rtcp= new JButton( "RTCP Monitor");
update= new JButton( "Transmission Status");
update.setEnabled( false);
rtcp.addActionListener( this);
update.addActionListener( this);
buttonPanel.add( rtcp);
buttonPanel.add( update);
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 3;
gbc.gridwidth= 2;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( buttonPanel, gbc);
p.add( buttonPanel);
getContentPane().add( p);
list.addMouseListener( this);
addWindowListener( this);
pack();
setVisible( true);
private JPanel createMediaPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
JLabel label= new JLabel( "Media Locator:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
tf_media_file= new JTextField( 35);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_media_file, gbc);
p.add( tf_media_file);
tf_media_file.setText( config.media_locator);
cb_loop= new JCheckBox( "loop");
startXmit= new JButton( "Start Transmission");
startXmit.setEnabled( true);
startXmit.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 2;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( cb_loop, gbc);
p.add( cb_loop);
cb_loop.setSelected( true);
cb_loop.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( startXmit, gbc);
p.add( startXmit);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Source");
p.setBorder( titledBorder);
return p;
private JPanel createTargetPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
targets= new Vector();
for( int i= 0; i < config.targets.size(); i++) {
targets.addElement( config.targets.elementAt( i));
listModel= new TargetListModel( targets);
list= new JList( listModel);
list.addKeyListener( this);
list.setPrototypeCellValue( "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
JScrollPane scrollPane= new JScrollPane( list,
ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
gbc= new GridBagConstraints();
gbc.gridx= 0;
gbc.gridy= 0;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( scrollPane, gbc);
p.add( scrollPane);
JPanel p1= new JPanel();
p1.setLayout( gridBagLayout);
JLabel label= new JLabel( "IP Address:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( label, gbc);
p1.add( label);
tf_remote_address= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( tf_remote_address, gbc);
p1.add( tf_remote_address);
label= new JLabel( "Data Port:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( label, gbc);
p1.add( label);
tf_remote_data_port= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( tf_remote_data_port, gbc);
p1.add( tf_remote_data_port);
JPanel p2= new JPanel();
addTarget= new JButton( "Add Target");
removeTarget= new JButton( "Remove Target");
p2.add( addTarget);
p2.add( removeTarget);
addTarget.addActionListener( this);
removeTarget.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 2;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.gridwidth= 2;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 20,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( p2, gbc);
p1.add( p2);
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 0;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( p1, gbc);
p.add( p1);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Targets");
p.setBorder( titledBorder);
return p;
private JPanel createLocalPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
JLabel label= new JLabel( "IP Address:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
JTextField tf_local_host= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_local_host, gbc);
p.add( tf_local_host);
try {
String host= InetAddress.getLocalHost().getHostAddress();
tf_local_host.setText( host);
} catch( UnknownHostException e) {
label= new JLabel( "Data Port:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
tf_data_port= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_data_port, gbc);
p.add( tf_data_port);
tf_data_port.setText( config.local_data_port);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Local Host");
p.setBorder( titledBorder);
return p;
public void actionPerformed( ActionEvent event) {
Object source= event.getSource();
if( source == addTarget) {
String ip= tf_remote_address.getText().trim();
String port= tf_remote_data_port.getText().trim();
String localPort= tf_data_port.getText().trim();
addTargetToList( localPort, ip, port);
if( avTransmitter != null) {
avTransmitter.addTarget( ip, port);
} else if( source == removeTarget) {
int index= list.getSelectedIndex();
if( index != -1) {
Target target= (Target) targets.elementAt( index);
if( avTransmitter != null) {
avTransmitter.removeTarget( target.ip, target.port);
targets.removeElement( target);
listModel.setData( targets);
} else if( source == startXmit) {
if( startXmit.getLabel().equals( "Start Transmission")) {
int data_port= new Integer( tf_data_port.getText()).intValue();
avTransmitter= new AVTransmitter( this, data_port);
avTransmitter.start( tf_media_file.getText().trim(), targets);
avTransmitter.setLooping( cb_loop.isSelected());
startXmit.setLabel( "Stop Transmission");
} else if( startXmit.getLabel().equals( "Stop Transmission")) {
avTransmitter.stop();
avTransmitter= null;
removeNonBaseTargets();
listModel.setData( targets);
startXmit.setLabel( "Start Transmission");
} else if( source == rtcp) {
if( rtcpViewer == null) {
rtcpViewer= new RTCPViewer();
} else {
rtcpViewer.setVisible( true);
rtcpViewer.toFront();
} else if( source == cb_loop) {
if( avTransmitter != null) {
avTransmitter.setLooping( cb_loop.isSelected());
private void removeNonBaseTargets() {
String localPort= tf_data_port.getText().trim();
for( int i= targets.size(); i > 0;) {
Target target= (Target) targets.elementAt( i - 1);
if( !target.localPort.equals( localPort)) {
targets.removeElement( target);
i--;
public void addTargetToList( String localPort,
String ip, String port) {
ListUpdater listUpdater= new ListUpdater( localPort, ip,
port, listModel, targets);
SwingUtilities.invokeLater( listUpdater);
public void rtcpReport( String report) {
if( rtcpViewer != null) {
rtcpViewer.report( report);
public void windowClosing( WindowEvent event) {
config.local_data_port= tf_data_port.getText().trim();
config.targets= new Vector();
for( int i= 0; i < targets.size(); i++) {
Target target= (Target) targets.elementAt( i);
if( target.localPort.equals( config.local_data_port)) {
config.addTarget( target.ip, target.port);
config.media_locator= tf_media_file.getText().trim();
config.write();
System.exit( 0);
public void windowClosed( WindowEvent event) {
public void windowDeiconified( WindowEvent event) {
public void windowIconified( WindowEvent event) {
public void windowActivated( WindowEvent event) {
public void windowDeactivated( WindowEvent event) {
public void windowOpened( WindowEvent event) {
public void keyPressed( KeyEvent event) {
public void keyReleased( KeyEvent event) {
Object source= event.getSource();
if( source == list) {
int index= list.getSelectedIndex();
public void keyTyped( KeyEvent event) {
public void mousePressed( MouseEvent e) {
public void mouseReleased( MouseEvent e) {
public void mouseEntered( MouseEvent e) {
public void mouseExited( MouseEvent e) {
public void mouseClicked( MouseEvent e) {
Object source= e.getSource();
if( source == list) {
int index= list.getSelectedIndex();
if( index != -1) {
Target target= (Target) targets.elementAt( index);
tf_remote_address.setText( target.ip);
tf_remote_data_port.setText( target.port);
int index= list.locationToIndex( e.getPoint());
public static void main( String[] args) {
new Tx();
class TargetListModel extends AbstractListModel {
private Vector options;
public TargetListModel( Vector options) {
this.options= options;
public int getSize() {
int size;
if( options == null) {
size= 0;
} else {
size= options.size();
return size;
public Object getElementAt( int index) {
String name;
if( index < getSize()) {
Target o= (Target)options.elementAt( index);
name= o.localPort + " ---> " + o.ip + ":" + o.port;
} else {
name= null;
return name;
public void setData( Vector data) {
options= data;
fireContentsChanged( this, 0, data.size());
class ListUpdater implements Runnable {
String localPort, ip, port;
TargetListModel listModel;
Vector targets;
public ListUpdater( String localPort, String ip, String port,
TargetListModel listModel, Vector targets) {
this.localPort= localPort;
this.ip= ip;
this.port= port;
this.listModel= listModel;
this.targets= targets;
public void run() {
Target target= new Target( localPort, ip, port);
if( !targetExists( localPort, ip, port)) {
targets.addElement( target);
listModel.setData( targets);
public boolean targetExists( String localPort, String ip, String port) {
boolean exists= false;
for( int i= 0; i < targets.size(); i++) {
Target target= (Target) targets.elementAt( i);
if( target.localPort.equals( localPort)
&& target.ip.equals( ip)
&& target.port.equals( port)) {
exists= true;
break;
return exists;
>>>>>>>>>>>>>>>>>
import java.awt.*;
import java.io.*;
import java.net.InetAddress;
import java.util.*;
import javax.media.*;
import javax.media.protocol.*;
import javax.media.format.*;
import javax.media.control.TrackControl;
import javax.media.control.QualityControl;
import javax.media.rtp.*;
import javax.media.rtp.event.*;
import javax.media.rtp.rtcp.*;
public class AVTransmitter implements ReceiveStreamListener, RemoteListener,
ControllerListener {
// Input MediaLocator
// Can be a file or http or capture source
private MediaLocator locator;
private String ipAddress;
private int portBase;
private Processor processor = null;
private RTPManager rtpMgrs[];
private int localPorts[];
private DataSource dataOutput = null;
private int local_data_port;
private Tx tx;
public AVTransmitter( Tx tx, int data_port) {
this.tx= tx;
local_data_port= data_port;
* Starts the transmission. Returns null if transmission started ok.
* Otherwise it returns a string with the reason why the setup failed.
public synchronized String start( String filename, Vector targets) {
String result;
locator= new MediaLocator( filename);
// Create a processor for the specified media locator
// and program it to output JPEG/RTP
result = createProcessor();
if (result != null) {
return result;
// Create an RTP session to transmit the output of the
// processor to the specified IP address and port no.
result = createTransmitter( targets);
if (result != null) {
processor.close();
processor = null;
return result;
// Start the transmission
processor.start();
return null;
* Use the RTPManager API to create sessions for each media
* track of the processor.
private String createTransmitter( Vector targets) {
// Cheated. Should have checked the type.
PushBufferDataSource pbds = (PushBufferDataSource)dataOutput;
PushBufferStream pbss[] = pbds.getStreams();
rtpMgrs = new RTPManager[pbss.length];
localPorts = new int[ pbss.length];
SessionAddress localAddr, destAddr;
InetAddress ipAddr;
SendStream sendStream;
int port;
SourceDescription srcDesList[];
for (int i = 0; i < pbss.length; i++) {
// for (int i = 0; i < 1; i++) {
try {
rtpMgrs[i] = RTPManager.newInstance();
port = local_data_port + 2*i;
localPorts[ i]= port;
localAddr = new SessionAddress( InetAddress.getLocalHost(),
port);
rtpMgrs.initialize( localAddr);
rtpMgrs[i].addReceiveStreamListener(this);
rtpMgrs[i].addRemoteListener(this);
for( int k= 0; k < targets.size(); k++) {
Target target= (Target) targets.elementAt( k);
int targetPort= new Integer( target.port).intValue();
addTarget( localPorts[ i], rtpMgrs[ i], target.ip, targetPort + 2*i);
sendStream = rtpMgrs[i].createSendStream(dataOutput, i);
sendStream.start();
} catch (Exception e) {
e.printStackTrace();
return e.getMessage();
return null;
public void addTarget( String ip, String port) {
for (int i= 0; i < rtpMgrs.length; i++) {
int targetPort= new Integer( port).intValue();
addTarget( localPorts[ i], rtpMgrs[ i], ip, targetPort + 2*i);
public void addTarget( int localPort, RTPManager mgr, String ip, int port) {
try {
SessionAddress addr= new SessionAddress( InetAddress.getByName( ip),
new Integer( port).intValue());
mgr.addTarget( addr);
tx.addTargetToList( localPort + "", ip, port + "");
} catch( Exception e) {
e.printStackTrace();
public void removeTarget( String ip, String port) {
try {
SessionAddress addr= new SessionAddress( InetAddress.getByName( ip),
new Integer( port).intValue());
for (int i= 0; i < rtpMgrs.length; i++) {
rtpMgrs[ i].removeTarget( addr, "target removed from transmitter.");
} catch( Exception e) {
e.printStackTrace();
boolean looping= true;
public void controllerUpdate( ControllerEvent ce) {
System.out.println( ce);
if( ce instanceof DurationUpdateEvent) {
Time duration= ((DurationUpdateEvent) ce).getDuration();
System.out.println( "duration: " + duration.getSeconds());
} else if( ce instanceof EndOfMediaEvent) {
System.out.println( "END OF MEDIA - looping=" + looping);
if( looping) {
processor.setMediaTime( new Time( 0));
processor.start();
public void setLooping( boolean flag) {
looping= flag;
public void update( ReceiveStreamEvent event) {
String timestamp= getTimestamp();
StringBuffer sb= new StringBuffer();
if( event instanceof InactiveReceiveStreamEvent) {
sb.append( timestamp + " Inactive Receive Stream");
} else if( event instanceof ByeEvent) {
sb.append( timestamp + " Bye");
} else {
System.out.println( "ReceiveStreamEvent: "+ event);
tx.rtcpReport( sb.toString());
public void update( RemoteEvent event) {
String timestamp= getTimestamp();
if( event instanceof ReceiverReportEvent) {
ReceiverReport rr= ((ReceiverReportEvent) event).getReport();
StringBuffer sb= new StringBuffer();
sb.append( timestamp + " RR");
if( rr != null) {
Participant participant= rr.getParticipant();
if( participant != null) {
sb.append( " from " + participant.getCNAME());
sb.append( " ssrc=" + rr.getSSRC());
} else {
sb.append( " ssrc=" + rr.getSSRC());
tx.rtcpReport( sb.toString());
} else {
System.out.println( "RemoteEvent: " + event);
private String getTimestamp() {
String timestamp;
Calendar calendar= Calendar.getInstance();
int hour= calendar.get( Calendar.HOUR_OF_DAY);
String hourStr= formatTime( hour);
int minute= calendar.get( Calendar.MINUTE);
String minuteStr= formatTime( minute);
int second= calendar.get( Calendar.SECOND);
String secondStr= formatTime( second);
timestamp= hourStr + ":" + minuteStr + ":" + secondStr;
return timestamp;
private String formatTime( int time) {
String timeStr;
if( time < 10) {
timeStr= "0" + time;
} else {
timeStr= "" + time;
return timeStr;
* Stops the transmission if already started
public void stop() {
synchronized (this) {
if (processor != null) {
processor.stop();
processor.close();
processor = null;
for (int i= 0; i < rtpMgrs.length; i++) {
rtpMgrs[ i].removeTargets( "Session ended.");
rtpMgrs[ i].dispose();
public String createProcessor() {
if (locator == null) {
return "Locator is null";
DataSource ds;
DataSource clone;
try {
ds = javax.media.Manager.createDataSource(locator);
} catch (Exception e) {
return "Couldn't create DataSource";
// Try to create a processor to handle the input media locator
try {
processor = javax.media.Manager.createProcessor(ds);
processor.addControllerListener( this);
} catch (NoProcessorException npe) {
return "Couldn't create processor";
} catch (IOException ioe) {
return "IOException creating processor";
// Wait for it to configure
boolean result = waitForState(processor, Processor.Configured);
if (result == false)
return "Couldn't configure processor";
// Get the tracks from the processor
TrackControl [] tracks = processor.getTrackControls();
// Do we have atleast one track?
if (tracks == null || tracks.length < 1)
return "Couldn't find tracks in processor";
// Set the output content descriptor to RAW_RTP
// This will limit the supported formats reported from
// Track.getSupportedFormats to only valid RTP formats.
ContentDescriptor cd = new ContentDescriptor(ContentDescriptor.RAW_RTP);
processor.setContentDescriptor(cd);
Format supported[];
Format chosen;
boolean atLeastOneTrack = false;
// Program the tracks.
for (int i = 0; i < tracks.length; i++) {
Format format = tracks[i].getFormat();
if (tracks[i].isEnabled()) {
supported = tracks[i].getSupportedFormats();
// We've set the output content to the RAW_RTP.
// So all the supported formats should work with RTP.
// We'll just pick the first one.
if (supported.length > 0) {
if (supported[0] instanceof VideoFormat) {
// For video formats, we should double check the
// sizes since not all formats work in all sizes.
chosen = checkForVideoSizes(tracks[i].getFormat(),
supported[0]);
} else
chosen = supported[0];
tracks[i].setFormat(chosen);
System.err.println("Track " + i + " is set to transmit as:");
System.err.println(" " + chosen);
atLeastOneTrack = true;
} else
tracks[i].setEnabled(false);
} else
tracks[i].setEnabled(false);
if (!atLeastOneTrack)
return "Couldn't set any of the tracks to a valid RTP format";
// Realize the processor. This will internally create a flow
// graph and attempt to create an output datasource for JPEG/RTP
// audio frames.
result = waitForState(processor, Controller.Realized);
if (result == false)
return "Couldn't realize processor";
// Set the JPEG quality to .5.
setJPEGQuality(processor, 0.5f);
// Get the output data source of the processor
dataOutput = processor.getDataOutput();
return null;
static SessionAddress destAddr1, destAddr2;
* For JPEG and H263, we know that they only work for particular
* sizes. So we'll perform extra checking here to make sure they
* are of the right sizes.
Format checkForVideoSizes(Format original, Format supported) {
int width, height;
Dimension size = ((VideoFormat)original).getSize();
Format jpegFmt = new Format(VideoFormat.JPEG_RTP);
Format h263Fmt = new Format(VideoFormat.H263_RTP);
if (supported.matches(jpegFmt)) {
// For JPEG, make sure width and height are divisible by 8.
width = (size.width % 8 == 0 ? size.width :
(int)(size.width / 8) * 8);
height = (size.height % 8 == 0 ? size.height :
(int)(size.height / 8) * 8);
} else if (supported.matches(h263Fmt)) {
// For H.263, we only support some specific sizes.
if (size.width < 128) {
width = 128;
height = 96;
} else if (size.width < 176) {
width = 176;
height = 144;
} else {
width = 352;
height = 288;
} else {
// We don't know this particular format. We'll just
// leave it alone then.
return supported;
return (new VideoFormat(null,
new Dimension(width, height),
Format.NOT_SPECIFIED,
null,
Format.NOT_SPECIFIED)).intersects(supported);
* Setting the encoding quality to the specified value on the JPEG encoder.
* 0.5 is a good default.
void setJPEGQuality(Player p, float val) {
Control cs[] = p.getControls();
QualityControl qc = null;
VideoFormat jpegFmt = new VideoFormat(VideoFormat.JPEG);
// Loop through the controls to find the Quality control for
// the JPEG encoder.
for (int i = 0; i < cs.length; i++) {
if (cs[i] instanceof QualityControl &&
cs[i] instanceof Owned) {
Object owner = ((Owned)cs[i]).getOwner();
// Check to see if the owner is a Codec.
// Then check for the output format.
if (owner instanceof Codec) {
Format fmts[] = ((Codec)owner).getSupportedOutputFormats(null);
for (int j = 0; j < fmts.length; j++) {
if (fmts[j].matches(jpegFmt)) {
qc = (QualityControl)cs[i];
qc.setQuality(val);
System.err.println("- Setting quality to " +
val + " on " + qc);
break;
if (qc != null)
break;
* Convenience methods to handle processor's state changes.
private Integer stateLock = new Integer(0);
private boolean failed = false;
Integer getStateLock() {
return stateLock;
void setFailed() {
failed = true;
private synchronized boolean waitForState(Processor p, int state) {
p.addControllerListener(new StateListener());
failed = false;
// Call the required method on the processor
if (state == Processor.Configured) {
p.configure();
} else if (state == Processor.Realized) {
p.realize();
// Wait until we get an event that confirms the
// success of the method, or a failure event.
// See StateListener inner class
while (p.getState() < state && !failed) {
synchronized (getStateLock()) {
try {
getStateLock().wait();
} catch (InterruptedException ie) {
return false;
if (failed)
return false;
else
return true;
* Inner Classes
class StateListener implements ControllerListener {
public void controllerUpdate(ControllerEvent ce) {
// If there was an error during configure or
// realizI do this all the time, I put my MBP to a 60 inch Sharp. If you have the video working do the simple thing first. Check to make sure your sound is on your TV and Mac. Then if that doesn't work go to System Prefrences and under sound go to a tab called Output and see if your TV is listed and if it is change it to that setting
Hope It Works -
Need to configure output type for adobe form
Hello All,
I need to configure output type for Adobe Form thru NACE. What would be print program and how do I call my form from that program? and, what would be the FORM routine for that form in NACE?
I'm little confused, Pls I need your help.
Thanks in advance,
ChandraHi,
Just before few weeks we did this task.
Say for example if you want to print PO details through ADOBE form instead of normal sapscript layout or standard MEDRUCK, you can follow the following steps.
1. Design the form in SFP tcode, by passing the necessary inputs through form interface.
2. Then use tcode tcode NACE and select EF as application and click output types button on the application tool bar. Select NEU output type and double click processing routines on left side.
3. Then, in the right side of the screen we can see the calling program and the form (may be sapscript or smartform) whatever used.
4. For form names we have two options in NACE tcode.
One is Form and the otherone is PDF/Smartform Form. If you are using adobe form give your form name under PDF/Smartform and also select PDF under the type option in the same screen.
This worked perfectly for us. But pass the required parameters to the form from the routine used in standard program.
If any queries please post it. -
Need info on New Gl for a fresh implememtation
Hello,
Kindly give your inputs on the new gl functionality for a fresh implementation. Please provide some documentation or pros and cons of it.
This is the senario, only one plant is being implemented for the time being, what is the possiblity of implementing the new gl at a later stage . If we activate the new gl can it be deactivated or if we activate can and not decide to use it and only uuse the regulat GL is that ok.
kindly provide your inputs as it is urgent and have to give my suggestions soon to the client.
points will be awarder generously.
thanks.Ashwin,
Here are my thoughts on the new GL.
1) Parallel Accounting - This feature allows for much more seemless implementation of multiple GAAP accounting. Previously you'd have to mess around with having accounts that are specific to different GAAPs, creating FI validations to ensure the entries balanced, and complicated reporting structures to make sure you had the proper reporting. The only other solutions were special purpose ledgers which may have helped to separate transactions for reporting, but did nothing to simplify the chart of accounts issues. If you are a multinational company, and will have different GAAPs, it is essential.
2) Profit Center Integration - With the new GL, Profit Center Accounting is an integrated element of the reporting ledgers. No need for a fully independent PCA implementation.
3) Extended Coding Block - Better support for adding customer defined fields to the coding block and having full transaction processing and reporting support. No need to implement the SPL unless you are doing some truly complicated manipulations to posted data such that you need user exits on flexible field movements.
4) SAP Stated Direction - This is where SAP is going and they aren't looking back. If this is a fresh implementation you should consider starting out in this manner instead of performing the transition at a later date. There are different transaction codes for the New GL than from the old GL, different reporting tables for the RW/RP, etc.
5) Document Splitting - If you need documents to split automatically for various attributes, e.g. profit centers, business areas, other custom defined fields, this is the only effective way to perform this.
I can't answer to the going back/forth between the two, e.g. classic versus new GL, but don't see why you would be absolutely in error with going new GL. I'd have a different opinion, but unlikely, if you were already live on the classic GL and you were contemplating going through the conversion.
I hope this was what you were looking for. Some points would be nice if so, please.
Regards,
Kyle -
Disaster Recovery server for SAP and HACMP Cluster script for SAP ECC 6.0
Hi,
I need document for Disaster Recovery server for SAP? I have to configure the DR Server If you have, please share this document if possible.
Have you any cluster script ( HACMP Cluster script for SAP ECC 6.0 ) ?
Thanks & Regards,Hello, I'm doing a "Plant ECC6 to do a test disatre / Recovery.
During the installation, I would use the same <sidadm> existing as it is in the PRD.
If I tell you to install it during the same <sidadm> it will overwrite what already exists, or do I just enter the password of existing <sidadm>? -
Exe behaves inconsistently with input data into a cluster
I'm on Labview 2011, SP1, so this may have been updated, but here's a quirk I discovered.
I was reading a network shared variable on a remote machine (with 7 integers) into a labview built app (exe) and passing those integers to a cluster used for control. Sometimes it worked, sometimes it didn't, so I figured I didn't understand shared variable enough (even though I had used them in the same situation many times).
I switched to writing a file on that remote system, then reading that info into the same cluster. Sometimes it worked, sometimes it didn't. Tried all kinds of tricks, but any time there was a direct connection between that variable input data and the cluster, it was inconsistent.
Turns out that the problem seemed to be the exe halting without error upon bundling the data into the cluster, but not every time.
So what finally got around the problem was writing the integers to a duplicate cluster, then using a local variable of that cluster to bundle those values into the controlling cluster.
Once the path between network passed input data and controlling cluster was "double blind" to the application builder, the problem was gone.
In case it makes some difference, the controlling cluster originated as a user control.Do you have a simple example that demonstrates the problem. I would like to test it on later versions.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps -
I need to add the logic for posting key,
I need to add the logic for posting key, if posting key = 50 then amount is credit (add negative sign in amount field).
I creadted this scenario in mapping, We wanted to make sure that the negative sign was placed in the amount field if the posting key was = 50. So it seems we are good. We will just need to test.
How i can test this case?
Please do needful.
Thanks in advance.Hi,
You need to use an IfElse node function in your mapping in which the input should be the posting key from the source structure.
You need to check in the IfElse statement whether the posting key=50, if it is true, then use concat node function to concat the negative sign("-") along with the original value to be passed to the amount field on the target side. Else, if the condition is false(i.e posting key!=50), then simply pass the value to the amount field as it is without adding the negative sign.
After the mapping is done, go to the test tab and then insert the values in the source fields and then execute from the lower left button showing start transformation. You need to test with the value of posting key=50 once and with the value not equal to 50 once.In the first case, the output amount field should have the negative sign, which should not be present in the second case.
You will find your target structure in the righter half of your screen. That's it mate
Thanks
Biswajit -
Need to mark value zero for repairable materials goods movements
Hello Masters,
The scenario is like below:
Materials reach perticular storage locations and goods movement happens with 101K or 102K. For materials of type repairable or non-repairable, we need to make value zero for above movemeny types in process of MIGO.
I feel that there is a work on config or a work on BADI's.
Please suggest feasible solutions ASAP as my business needs these to be in place soon.
Let me know if you need any more inputs.
Thanks in advance.
Ravi ShankarHi,
Check this link:
[Re: Free goods in Purchase]
SAM -
I have this JSP page which contacts this bean to query from the database. The problem is the execution of the query will take a long time. So can I just keep posting to this web page at what part of the execution I am (I mean right after each iteration i could show them that I have completed this par or something like that). To do this do I need JMS, or can u guys suggest something better.
ThanksOne easy solution is to just set a META REFRESH for your JSP page, and the page can query the bean to see what state it is in, then display it to the user. Set the refresh for every 10-15 seconds.
-
Need Oracle 12c whitepaper recommendation for upgrade assessment
Hi: Good morning!
This is not an urgent request, but appreciate your recommendation! I need documents about Oracle 12c (our os is IBM AIX power system, 6.1, 64 bit), because we are planning upgrade current oracle database 11.2.0.4 to 12c, we need a thorough assessment to 12c since 12c introduced many innovative, new features, major component changes, as well as impact to java application. The document I have so far is-
1. database upgrade guide
http://docs.oracle.com/database/121/UPGRD/preup.htm#UPGRD002
2. Deprecated API (oracle database JDBC Java API Reference)
https://docs.oracle.com/database/121/JAJDB/deprecated-list.html
3. Tom Kytes Top 12 new features for Oracle 12c (from web).
There are many things to look for. I want to know the major things I should focus in new features & impact to java application.
what document can provide me the info!
thank you very much in advance!Hi all:
Can anyone gives me advice after upgrade from 11.2.0.4 database to 12c database, which 'core-DB new features' impact to Java application more, and that we should focus on assessment?
There are too many new & innovative features introduced in 12c. Should I convert our single instance database (on non-cluster server) to 'CDB/PDB' during upgrade? Is it a 'Must-to-do' or not? We have a physical standby DB, how to do with the standby?
Oracle Documents I reviewed are: 'Oracle 12c database document', 'Oracle 12c Java Developer's Guide'. I recommend this to our developers based on 'Oracle 12c Java Developer's Guide':
Oracle JVM ( JDK6, JDK7 support in 12)
[note:need to check jvm components for application: library manager, compiler, interpreter, class loader, server-side JDBC internal driver, server-side SQLJ, translator, system classes; Java stored procedure, SQLJ, JDBC, etc]
2. Oracle Memory Space management ( garbage collection)
3. Multithreading
4. Footprinting
5. Dynamic class loading
6. JNDI class support
7. Auditing for Java ( alert/execute/audit/grant is enabled in auditing)
8. Support for logging
9. Support for customizing default java.security resource
10. Improved for debugging
However, I may lost myself in core-DB new features for:
1. advanced analytics features
2. OLAP features
3. Partitioning enhance
4. Performance for zero effort
5. Compression and Archiving features (depends on application tables design)
6. Database Overall
- Integrate With Operating System Processor Groups
- Oracle Data Pump Support
- Multitenant Architecture (Not sure)
- PDBs Backup and Recovery (Not sure)
- PDBs Point-in-Time Recovery (Not sure)
- PDBs Resource Plans (Not sure)
- Utilities
7. High Availability
- Application Continuity
- Transaction Guard
- Logical Replication
- Global Data Services
- Online Operations
- Oracle Data Guard Enhancements (Depends on our standby design)
8. Manageability
- PGA Size Limit
- Resource Manager Runaway Query Management
- Spot ADDM
9. General
- DBMS_QOPATCH
10. Performance
11. Security enhance
12. Improve Security Manageability, Administration and Integration
- Database vault
Is my above suggestion (text in red-color) correct?
Thank you very much!
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