Dynamic REPLACE with java.nio.CharsetEncoder
Hi,
I want to write an XML generator. Depending on the Charset,
I have to replace certain characters (for example > 255 in
case of ISO-8859-1) with &#dddd; (dddd being the numeric
value of the character).
It seems that CodingErrorAction.REPLACE would be well suited
for that, but it can only replace static strings and not
dynamically generated strings.
Am I missing something? Or any suggestions how to use the
CharsetEncoder anyways?
Regards,
Jochen
Hello-oooo? Ever heard of xerces? Why write yet another xml generator when there are packages already written out there?
Similar Messages
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Converting from CP1252 (Windows) to ISO 8859-1 doesn't work with java.nio?
Hi
I'm trying to write some code that checks whether an InputStream contains only characters with a given encoding. I'm using java.nio for that. For tests, I downloaded some character set examples from http://www.columbia.edu/kermit/csettables.html
When creating the CharsetDecoder, I want to get all errors:
Charset charset = Charset.forName( encoding );
CharsetDecoder decoder = charset.newDecoder();
decoder.onMalformedInput( CodingErrorAction.REPORT );
decoder.onUnmappableCharacter( CodingErrorAction.REPORT );I then read an InputStream and try to convert it. If that fails, it can't contain the desired encoding:
boolean isWellEncoded = true;
ByteBuffer inBuffer = ByteBuffer.allocate( 1024 );
ReadableByteChannel channel = Channels.newChannel( inputStream );
while ( channel.read( inBuffer ) != -1 )
CharBuffer decoded = null;
try
inBuffer.flip();
decoded = decoder.decode( inBuffer );
catch ( MalformedInputException ex )
isWellEncoded = false;
catch ( UnmappableCharacterException ex )
isWellEncoded = false;
catch ( CharacterCodingException ex )
isWellEncoded = false;
if ( decoded != null )
LOG.debug( decoded.toString() );
if ( !isWellEncoded )
break;
inBuffer.compact();
channel.close();
return isWellEncoded;Now I want to check whether a file containing Windows 1252 characters is ISO-8859-1. From my point of view, the code above should fail when it gets to the Euro symbol (decimal 128), since that's not defined in ISO-8859-1.
But all I get is a ? character instead:
(}) 125 07/13 175 7D RIGHT CURLY BRACKET, RIGHT BRACE
(~) 126 07/14 176 7E TILDE
[?] 128 08/00 200 80 EURO SYMBOL
[?] 130 08/02 202 82 LOW 9 SINGLE QUOTEI also tried to replace the faulty character, using
decoder.onUnmappableCharacter( CodingErrorAction.REPLACE );
decoder.replaceWith("!");but I still get the question marks.
I'm probably doing something fundamentally wrong, but I dont get it :-)
Any help is greatly appreciated!
EricAs a suggestion....create a complete example demonstrating the problem. It shouldn't have channel in it since that wouldn't appear to be the problem (decoding is.) You should create the byte array in the example code - populate it with the byte sequence that you think should work. And your code should then demonstrate that it doesn't. Then post that.
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Smartforms replaced with Java based ADOBE!!!!!
Is it true that Smartforms was replaced with this new Java based Adobe version in SAP Ver 5.0?
Can anyone send me a link for more information of Java based Adobe Version or any weblog if present??
Thanks,Hi Naren,
information on the Interactive Forms solution is available in SDN at http://sdn.sap.com/irj/sdn/adobeforms and in SAP Service Marketplace at http://service.sap.com/adobe.
While the rendering engine of Interactive Forms is Java-based, high-volume printing is still done from ABAP in transaction SFP (similar to TA SMARTFORMS). The new features are in the interactive use of PDFs.
Regards,
Markus Meisl
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Need help with java.nio.socket program.
Can someone please help me here? I am trying to create a class that listens on a socket for an incoming connection, but I am getting the following error on compile:
SocketIn.java:48: incompatible types
found : java.nio.channels.SocketChannel
required: java.net.Socket
Socket requestSocket = requestChannel.accept();
Here is my code:
package NETC;
import java.net.*;
import java.util.*;
import java.io.*;
import java.nio.*;
import java.nio.charset.*;
import java.nio.channels.*;
import java.nio.channels.spi.*;
public class SocketIn{
// Buffer for any incoming data.
private static ByteBuffer inBuffer = ByteBuffer.allocateDirect(1024);
CharBuffer charBuffer = null;
public SocketIn(int intPort)throws Exception{
// Create a non-blocking server socket.
ServerSocketChannel serverChannel = ServerSocketChannel.open();
serverChannel.configureBlocking(false);
// Use the host and port to bind the server socket.
InetAddress inetAddress = InetAddress.getLocalHost();
InetSocketAddress socketAddress = new InetSocketAddress(inetAddress, intPort);
serverChannel.socket().bind(socketAddress);
// The selector for incoming requests.
Selector requestSelector = SelectorProvider.provider().openSelector();
// Put the server socket on the selectors 'ready list'.
serverChannel.register(requestSelector, SelectionKey.OP_ACCEPT);
while(requestSelector.select() > 0){
System.out.println("Connection Accepted...");
// A request has been made and is ready for IO.
Set requestKeys = requestSelector.selectedKeys();
Iterator iterator = requestKeys.iterator();
while(iterator.hasNext()){
SelectionKey requestKey = (SelectionKey)iterator.next();
// Get the socket that's ready for IO.
ServerSocketChannel requestChannel = (ServerSocketChannel)requestKey.channel();
// This shouldn't block.
Socket requestSocket = requestChannel.accept();
inBuffer.clear();
requestSocket.read(inBuffer);
inBuffer.flip();
Charset charset = Charset.forName("ISO-8859-1");
CharsetDecoder decoder = charset.newDecoder();
charBuffer = decoder.decode(inBuffer);
iterator.remove();
}Well its been about a month and a half so I guess you have your answer. In case you don't...
// This shouldn't block.
Socket requestSocket = requestChannel.accept();
The problem is quite simple. The ServerSocketChannel.accept() returns a SocketChannel. (Channel -> Channel).
You can get access to the socket using the SocketChannel.
SocketChannel requestSocketChannel = requestChannel.accept();
Socket requestSocket = requestSocketChannel.socket();
But you don't need the socket to read and write. -
How to bind dynamic xml with Java objects without xsd
have a question, and hope someone here can help me.
In my current project, I will get a xml file, containing some information of each user, and map them into a set of user objects.
For each user, there are some fixed attributes, such as name, phone#, age, position, etc. The problem is, client can customize, and add new attibutes, such as address, favorite color, so there will be no xsd for the xml.
What I want to do, is map fixed attributes to user object attributes, for example, name attribute to User.name, and they will have corresponding getters, and setters, but for custom attributes, I want to add them to a HashMap in User object, for example, use string "ADDRESS" as the key, and address as the value.
Is there any way I can do this? Thank you very much for any help you can provide.It would not be too hard to do in regular code.
First, make a HashSet with the Strings for the names of the known attributes that will be processed with setters.
Then, get the NamedNodeMap via getAttributes(). That will give you all attributes -- both the ones you will handle with your setters and the ones you will handle via a HashMap.
Then, loop through the NamedNodeMap. For each attribute, get the name and value. If the name is in the HashSet of known values, process it with a list of
if ( attName.equals( "name" ))
whatever.setName( value );
continue;
}If it is not in the HashSet, then set the value into your HashMap with the name and value.
There is no standard way to do this.
Dave Patterson -
XSL mapping with Java enhancment PI 7.1 - Dynamic configuration
Scenario - IDOC -> File
XSL Mapping using dynamic configuration to set file name.
1. Ive included
xmlns:javamap="java:packageName.DynamicFunctionClass">
in the XSL header
2.Ive call this method javamap:transform($input, $output)
In the Java code.
1. Package = packageName
2. Class Name = DynamicFunctionClass
3. Class Compiles and I have uploaded into the ESR for a particular scenario. (source and class)
4. extends AbstractTransformation and implements the transform method.
public class DynamicFunctionClass extends AbstractTransformation{ .....
public void transform(TransformationInput arg0, TransformationOutput arg1) throws StreamTransformationException {
ISSUE -
Essentially it looks as though PI cannot see the class file or is not able to reference it. I have created a static method in the class as well to access and this does not work.
TRACE -
Resource not found META-INF/Services/javax.xml.parsers.SAXParserFactory Thrown:
com.sap.aii.ib.server.mapping.execution.MappingClassNotFoundException:Ive stumbled across the fact that JDK 1.5 does not allow for Mapping with Java enchanment it is a feature only in SAPXMLTOOL kit, I shall tick the little box in the Operational mapping ...
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Performance of java nio with dd in linux.
Hi
I ran this code in java to dump 0s in a file of size 1gb and tried the same with dd in linux.
Java code : I use a preinitialized array (the data) and fill a mappedbytebuffer with it.
package filePersistence.test;
import java.io.File;
import java.io.RandomAccessFile;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
public class TimeLineTest {
private static final int BYTE_LENGTH = 1000;
//this is the input
static byte[] b = new byte[BYTE_LENGTH];
public static void main(String[] arg) throws Exception
//initializing the input
for (int i=0;i<BYTE_LENGTH;i++)
b[i] = 0;
File file = new File(arg[0]);
RandomAccessFile raFile = new RandomAccessFile(file,"rw");
FileChannel fChannel = raFile.getChannel();
int loopCount = 1000000;
MappedByteBuffer mbuffer = fChannel.map( FileChannel.MapMode.READ_WRITE ,0,loopCount * BYTE_LENGTH);
//System.out.println(" going to fill in a file" + file.getName());
long k = 0;
long startTime = System.currentTimeMillis();
for (int i=0;i<loopCount;i++)
//populate the mapped buffer
mbuffer.put(b);
//persist into the file
mbuffer.force();
long endTime = System.currentTimeMillis();
System.out.println(" file filled size1 "+file.length());
System.out.println(" time " + (endTime - startTime));
On a linux machine this takes around 7 secs while dd used as
"dd if=/dev/zero of=mytestfile.out bs=1000 count=1000000"
1000000+0 records in
1000000+0 records out
1000000000 bytes (1.0 GB) copied, 4.618 seconds, 217 MB/s
4.6 and 7 differ quite a lot. Is there a way the java code can be improved to match dd ?(-sever does not help)
Thanks
SumantaHi
Can this be called a dd equivalent code ?
package filePersistence.test;
import java.io.File;
import java.io.FileOutputStream;
import java.io.RandomAccessFile;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;
public class TimeLineTest {
private static final int BYTE_LENGTH = 1000;
//this is the input
static byte[] b = new byte[BYTE_LENGTH];
public static void main(String[] arg) throws Exception
//initializing the input
for (int i=0;i<BYTE_LENGTH;i++)
b[i] = 0;
String srcFile = arg[0] + "_src";
FileOutputStream fos = new FileOutputStream(srcFile);
fos.write(b);
fos.getFD().sync();
fos.flush();
fos.close();
RandomAccessFile srcraFile = new RandomAccessFile(srcFile,"rw");
FileChannel srcChannel = srcraFile.getChannel();
File file = new File(arg[0]);
RandomAccessFile raFile = new RandomAccessFile(file,"rw");
FileChannel raChannel = raFile.getChannel();
int loopCount = 1000000;
//MappedByteBuffer mbuffer = fChannel.map( FileChannel.MapMode.READ_WRITE ,0,loopCount * BYTE_LENGTH);
//System.out.println(" going to fill in a file" + file.getName());
long startTime = System.currentTimeMillis();
for (int i=0,position=0;i<loopCount;i++,position+=BYTE_LENGTH)
//populate the mapped buffer
//mbuffer.put(b);
raChannel.position(position);
srcChannel.transferTo(0, BYTE_LENGTH, raChannel);
//persist into the file
//mbuffer.force();
raFile.getFD().sync();
raChannel.close();
raFile.close();
long endTime = System.currentTimeMillis();
System.out.println(" file filled size1 "+file.length());
System.out.println(" time " + (endTime - startTime));
} -
Replace the wait with java embedding thread.sleep() function
Hi,
How to replace the wait with java embedding thread.sleep() function. Can anyone help.
Thanks.drag and drop the java embedding component
include the following code in it.
try{
Thread.sleep(60000);
}catch(Exception e)
--Prasanna -
Trying to use the "Replace with After Effects Composition" to use Warp Stabilizer on a clip and transfer it back into Premiere Pro CC. The action is not "grayed out" it allows me to click it and it opens up After Effects, then asks to open a new composition, but it doesn't open up the clip for me to work on it.
Also is the Dynamic Link and Replace with After Effects Composition the same thing?
Ive watched several tutorials and read threads but I still don't understand who to fix my problem.
I have both CC versions of PP and AE, if that makes any difference.You have not provided any system information, no details about your sequence settings, your footage and whatnot. Nobody can even guess what may be going on.
Mylenium -
Replace VBX Control with Java Bean
Hi All,
While compiling 6i forms in 10g I got this error of VBX Control (Obsolete)
The document says replace it with JavaBeans.
I don’t know how to replace a VBS Control with Java Bean but this is what I did, I selected the item type as Bean Area.
But the item do have a trigger
begin
control_lib.when_tab_changed(:control.tab_ctl)
end
The Package CONTROL_LIB is coded as below.
Will this code work, technically I think yes, but its always better to ask experts before I move this to test...
package body control_lib is
g_tab_id number := 0
procedure when_tab_changed
(p_tab_id number) is
l_err_txt varchar2(255);
begin
if :system.block_status != 'QUERY' then
if not good_quiet_post(l_err_txt) then
raise form_trigger_failure;
end if
end if
if p_tab_id = 0 then
rpt_ln_lib.new_tab;
elsif p_tab_id = 1 then
stat_lib.new_tab;
elsif p_tab_id = 2 then
per_acc_rl_lib.new_tab;
end if
g_tab_id := p_tab_id
exception
when form_trigger_failure then
:control.tab_ctl := g_tab_id
synchronize
end when_tab_changed
Thanks to all.
HabeebA Java bean is another technology than VBX control.
If some document says: Replace it with java bean it certainly means to use a similar java bean with a similar functionality.
I do not know a java bean, which runs VBX controls.
So you surely have to look at what yout VBX does an than to look after a proper java bean (or to write an own one). -
Troubles with timeout using java.nio.channels and non-blocking sockets
Hello.
I have a server application that employs java.nio.channels with non-blocking sockets.
The server waits for connections. The client should connect and be first in sending data.
Timeouts are significant! If client exceeds the allowed time to send data, the server should break the connection.
The huge trouble I've discovered that I cannot control the timeout when client connects but remains silent.
My code looks as follows:
<pre>
Selector oSel;
SocketChannel oSockChan;
Socket oSock;
SelectionKey oSelKey;
Iterator<SelectionKey> oItSelKeys;
int iCurrState, iMask, iCount;
iCurrState = INT_SERVER_WORKING;
iMask = SelectionKey.OP_ACCEPT | SelectionKey.OP_CONNECT | SelectionKey.OP_READ | SelectionKey.OP_WRITE;
while ( iCurrState == INT_SERVER_WORKING )
try
*// retrieving next action*
iCount = oSel.select();
if ( iCount > 0 )
oItSelKeys = oSel.selectedKeys().iterator();
while ( oItSelKeys.hasNext() )
oSelKey = oItSelKeys.next();
oItSelKeys.remove();
if ( oSelKey.isValid() )
switch ( oSelKey.readyOps() & iMask ) {
case SelectionKey.OP_ACCEPT :
oSockChan = oSSockChan.accept();
oSockChan.configureBlocking(false);
oSock = oSockChan.socket();
oSock.setKeepAlive(true);
oSockChan.register(oSel,SelectionKey.OP_READ,new MyPacket(oSock.getInetAddress(),oSock.getPort()));
break;
case SelectionKey.OP_READ :
oSelKey.interestOps(0);
((MyPacket) oSelKey.attachment()).inRequest(); *// preparing request*
this.getReader().add(oSelKey); *// sending key to reading thread*
break;
case SelectionKey.OP_WRITE :
oSelKey.interestOps(0);
((MyRequest) oSelKey.attachment()).inResponse(); *// preparing response*
this.getWriter().add(oSelKey); *// sending key to writing thread*
break;
case SelectionKey.OP_CONNECT :
default :
*// nothing to do*
catch ( IOException oExcept )
*// do some actions*
</pre>
Timeouts are easily controlled by reading and writing threads (see OP_READ and OP_WRITE ).
But when a client just connects without consequent data send, the state of this connection remains as OP_ACCEPT. The connection remains open for arbitrarily large time and I cannot control it!
Please help with idea how can I terminate such connections!How can I process the keys that weren't selected at the bottom of the loop? Should I use the method keys() ?Yes. Form a new set from keys() and removeAll(selectedKeys()). Do that before you process selectedKeys().
And the second moment: as I understood a single key may contain several operations simultaneously? Thus I should use several if's (but not if/else 'cause it's the equivalent of switch ... case ).If there is anything unclear about 'your switch statement is invalid. You need an if/else chain' I fail to see what it is. Try reading it again. And if several ifs were really the equivalent of "switch ... case", there wouldn't be a problem in the first place. They're not, and there is. -
Java.nio select() method return 0 in my client application
Hello,
I'm developing a simple chat application who echo messages
But my client application loop because the select() method return 0
This is my code
// SERVER
package test;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.util.Set;
public class Server {
private int port = 5001;
public void work() {
try {
ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
serverSocketChannel.configureBlocking(false);
InetSocketAddress isa = new InetSocketAddress(port);
serverSocketChannel.socket().bind(isa);
Selector selector = Selector.open();
serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT);
System.out.println("Listing on "+port);
while(selector.select()>0) {
Set keys = selector.selectedKeys();
for(Iterator i = keys.iterator(); i.hasNext();) {
SelectionKey key = (SelectionKey) i.next();
i.remove();
if (key.isAcceptable()) {
ServerSocketChannel keyChannel = (ServerSocketChannel)key.channel();
SocketChannel channel = keyChannel.accept();
channel.configureBlocking(false);
channel.register(selector, SelectionKey.OP_READ );
} else if (key.isReadable()) {
SocketChannel keyChannel = (SocketChannel) key.channel();
String m = Help.read(keyChannel );
Help.write(m.toUpperCase(), keyChannel );
} catch (IOException e) {
e.printStackTrace();
public static void main(String[] args) {
Server s = new Server();
s.work();
// CLIENT
package test;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.util.Set;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class Client extends JFrame {
private String host = "localhost";
private int port = 5001;
private SocketChannel socketChannel;
private Selector selector;
public void work() {
try {
socketChannel = SocketChannel.open();
socketChannel.configureBlocking(false);
InetSocketAddress isa = new InetSocketAddress(host, port);
socketChannel.connect(isa);
selector = Selector.open();
socketChannel.register(selector, SelectionKey.OP_CONNECT | SelectionKey.OP_READ );
while(true) {
selector.select();
Set keys = selector.selectedKeys();
for(Iterator i = keys.iterator(); i.hasNext();) {
SelectionKey key = (SelectionKey) i.next();
i.remove();
if (key.isConnectable()) {
SocketChannel keyChannel = (SocketChannel) key.channel();
if (keyChannel.isConnectionPending()) {
System.out.println("Connected "+keyChannel.finishConnect());
} else if (key.isReadable()) {
SocketChannel keyChannel = (SocketChannel) key.channel();
String m = Help.read(keyChannel);
display(m);
} catch (IOException e) {
e.printStackTrace();
private void display(final String m) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
area.append(m+"\n");
textFieed.setText("");
private void sendMessage(final String m) {
Thread t = new Thread(new Runnable() {
public void run() {
try {
Help.write(m, socketChannel);
} catch (IOException e) {
e.printStackTrace();
t.start();
public Client() {
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(1);
textFieed.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode()== KeyEvent.VK_ENTER) {
String m = textFieed.getText();
sendMessage(m);
area.setEditable(false);
getContentPane().add(textFieed, "North");
getContentPane().add(new JScrollPane(area));
setBounds(200, 200, 400, 300);
show();
private String messageToSend;
private JTextArea area = new JTextArea();
JTextField textFieed = new JTextField();
public static void main(String[] args) {
Client s = new Client();
s.work();
// HELPER CLASS
package test;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
public class Help {
private static Charset charset = Charset.forName("us-ascii");
private static CharsetEncoder enc = charset.newEncoder();
private static CharsetDecoder dec = charset.newDecoder();
private static void log(String m) {
System.out.println(m);
public static String read(SocketChannel channel) throws IOException {
log("*** start READ");
int n;
ByteBuffer buffer = ByteBuffer.allocate(1024);
while((n = channel.read(buffer)) > 0) {
System.out.println(" adding "+n+" bytes");
log(" BUFFER REMPLI : "+buffer);
buffer.flip();
CharBuffer cb = dec.decode(buffer);
log(" CHARBUFFER : "+cb);
String m = cb.toString();
log(" MESSAGE : "+m);
log("*** end READ");
//buffer.clear();
return m;
public static void write(String m, SocketChannel channel) throws IOException {
log("xxx start WRITE");
CharBuffer cb = CharBuffer.wrap(m);
log(" CHARBUFFER : "+cb);
ByteBuffer buffer = enc.encode(cb);
log(" BUFFER ALLOUE REMPLI : "+buffer);
int n;
while(buffer.hasRemaining()) {
n = channel.write(buffer);
System.out.println(" REMAINING : "+buffer.hasRemaining());
log("xxx end WRITE");Here's the fix for that old problem. Change the work method to do the following
- don't register interest in things that can't happen
- when you connect register based on whether the connection is complete or pending.
- add the OP_READ interest once the connection is complete.
This doesn't fix all the other problems this code will have,
eg.
- what happens if a write is incomplete?
- why does my code loop if I add OP_WRITE interest?
- why does my interestOps or register method block?
For code that answers all those questions see my obese post Taming the NIO Circus
Here's the fixed up Client code
// CLIENT
package test
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.util.Iterator;
import java.util.Set;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class Client extends JFrame {
private String host = "localhost";
private int port = 5001;
private SocketChannel socketChannel;
private Selector selector;
public void work() {
try {
socketChannel = SocketChannel.open();
socketChannel.configureBlocking(false);
InetSocketAddress isa = new InetSocketAddress(host, port);
socketChannel.connect(isa);
selector = Selector.open();
int interest = 0;
if(socketChannel.isConnected())interest = SelectionKey.OP_READ;
else if(socketChannel.isConnectionPending())interest = SelectionKey.OP_CONNECT;
socketChannel.register(selector, interest);
while(true)
int nn = selector.select();
System.out.println("nn="+nn);
Set keys = selector.selectedKeys();
for(Iterator i = keys.iterator(); i.hasNext();)
SelectionKey key = (SelectionKey) i.next();
i.remove();
if (key.isConnectable())
SocketChannel keyChannel = (SocketChannel) key.channel();
System.out.println("Connected "+keyChannel.finishConnect());
key.interestOps(SelectionKey.OP_READ);
if (key.isReadable())
SocketChannel keyChannel = (SocketChannel) key.channel();
String m = Help.read(keyChannel);
display(m);
} catch (IOException e) {
e.printStackTrace();
private void display(final String m) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
area.append(m+"\n");
textFieed.setText("");
private void sendMessage(final String m) {
Thread t = new Thread(new Runnable() {
public void run() {
try {
Help.write(m, socketChannel);
} catch (IOException e) {
e.printStackTrace();
t.start();
public Client() {
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(1);
textFieed.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode()== KeyEvent.VK_ENTER) {
String m = textFieed.getText();
sendMessage(m);
area.setEditable(false);
getContentPane().add(textFieed, "North");
getContentPane().add(new JScrollPane(area));
setBounds(200, 200, 400, 300);
show();
private String messageToSend;
private JTextArea area = new JTextArea();
JTextField textFieed = new JTextField();
public static void main(String[] args) {
Client s = new Client();
s.work(); -
Problematic frame: # J java.nio.MappedByteBuffer.load()
Helo all...
I'm getting an error when generating a PDF using BIRT Framework in Eclipse. Nothing fancy, just compiling a simple report to pdf.
The problem is, the JVM crashes with the following error:
# A fatal error has been detected by the Java Runtime Environment:
# EXCEPTION_IN_PAGE_ERROR (0xc0000006) at pc=0x0190f0be, pid=5848, tid=2392
# JRE version: 7.0_09-b05
# Java VM: Java HotSpot(TM) Client VM (23.5-b02 mixed mode, sharing windows-x86 )
**# Problematic frame:
# J java.nio.MappedByteBuffer.load()Ljava/nio/MappedByteBuffer;**
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
# An error report file with more information is saved as:
# C:\Users\luis\Desktop\teste\birt\hs_err_pid5848.log
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
I already tried:
1. Run the program in another computers - it worked
2. Reinstall Java on the computer - It did nothing
3. I check the integrity of the disk C: - Nothing
I already spent two days trying to fix this and I don't have any progress. I can't find a solution on the web either.
Thanks in advanceThanks for the help.
But it can not be related to BIRT because it works in every other computer that I tried so far. There is only one computer that not works properly.
If it were BIRT's fault, it wouldn't work in any computer.
Thanks again -
How can i create an dynamic report in Java
hello everybody,
I want to make dynamic reports in Java. Report contain data and images with good layout.. such as crystal reports presentation..
Reports fields decided at run time or we can say that it is generated according to user requirement...
can it is possible in Java. If it is then which tool is better for it..
please suggest me.. this is very urgent requirement for me...i don't know what types of tools are avaiable in market... Tools for what? You still didn't tell us what exactly you want to do.
i just imagin that
"An user create a database dynamically on server
databaseNobody "dynamically creates a database".
and he decide reports desgin according to
his requirement..... we provide an control for this
type possibilities....."
so this is question is build in my mind.. so i
forward this question to this forums..
I am just going to check the physibility of my mind
imagination...Feasibility you mean. IMHO, the feasibility of creating that stuff yourself is very low. Reinventing the wheel usually doesn't make it better, and it's likely to be more expensive to pay you for creating an inferior solution (not because of lack of skills, but simply because the available products had a few years time to grow, feature-wise) than to simply buy the licenses. Look at Crystal Reports or JFreeChart or Jasper Reports. Or use Google to look up J2EE-based reporting libraries. There might be more.
Which of these is best, I don't know, I never used any of those. Also, the definition of "best" changes with the requirements. What's better, a Ferrari or a truck? -
How to dynamically replace variables in SMARTFORM texts based on item data?
Hi experts,
I'm currently designing a confirmation of order using Adobe PDF forms. The general layout with tables, pictures and texts was not big deal.
But one tiny bit doesn't work and I'm becoming more and more desperate about it.
We need various free texts for our pdf form. I created the texts using smartform texts. Some of these texts need to be slightly dynamic, so I added some dynamic fields in it.
For example:
"The material is currently out of stock.You can expect shipping around week &num_week&."
To replace the dynamic field &num_week& in my interface, I read that I have to name the dynamic field exactly like the corresponding field in my interface. In my case this would be now:
"The material is currently out of stock.You can expect shipping around week &SLS_PRT_COM-ITEM_DETAIL-ZZ_EXTRAFIELDS-ZZWEEKNUM&."
To see the text on my form, I added a text object with type 'text module' and the proper textname. Of course I'm able to insert text on my form, save and activate it without problems. But if I want to print the form, nothing happens as the print program exits with an error code.
After some hours I found out that this problem only occurs if I'm trying to replace the dynamic field with a field from the item table. Using a field from head details or globals like sy-mandt works like a charm.
So my question is: Is it possible to use item data to replace dynamic fields of a smartform text?
Greetings and thanks in advance!
AndréHi
Have a look at the links below:
LiveCycle ES2 * Adobe LiveCycle Designer ES2
Using floating field in Adobe Forms to display text paragraph with dynamic variables in between
After adding the floating field it will apeare in the hierarchy pallet above or bellow the text field.
Good luck
Shai.
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