| java.util.zip not handling Unicode filenames |
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Index ‹ java-programmer
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- 2
- JWS newbie security questionHi,
Trying to deploy my java application on the intranet via JWS for the
very first time. All of my jars are unsigned and I get an error
(described below). I though that the user was supposed to decide
whether or not to allow access. So why do I get an error instead?
An error occurred while launching/running the application.
Title: Yadda Yadda
Vendor: IT Department
Category: Security Error
Unsigned application requesting unrestricted access to system
Unsigned resource: http://localhost/infoflow/infoflow.jar
Thanks!
Aaron Fude
- 4
- Reading only numbers from a filehi all
i need a code for reading only numbers from file and not the
letters.
for ex if i have emp name and salary i have to reda only salary.
- 5
- ports/java cleanup/re-org (was: freebsd eclipse plugins & mailingOn Aug 25, 2005, at 10:00 PM, Greg Lewis wrote:
> and the fact that the devel category is already huge.
Devel is ripe for splitting ala the x11-* categories. And I suspect a
not insubstantial portion of devel could be moved elsewhere (e.g.
devel/mime -> mail/mime).
And this whole thread should be moved to the ports list. Please note
the reply-to.
--lyndon
_______________________________________________
email***@***.com mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-java
To unsubscribe, send any mail to "email***@***.com"
- 5
- what's wrong with my component? i make a new component which is a dragable icon here is my piece of
code
//class: DragAbleComponent.the father of my component
import java.awt.Graphics;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.accessibility.Accessible;
import javax.swing.JComponent;
public abstract class DragAbleComponent extends JComponent implements
MouseListener,
FocusListener, Accessible ,MouseMotionListener{
private int X;
private int Y;
/**
*
*/
private static final long serialVersionUID = 1L;
public void mouseClicked(MouseEvent e) {
this.requestFocusInWindow();
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mousePressed(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void focusGained(FocusEvent e) {
this.repaint();}
public void focusLost(FocusEvent e) {
this.repaint();}
protected abstract void paintComponent(Graphics graphics);
public int getX() {
return X;
}
public void setX(int x) {
X = x;
}
public int getY() {
return Y;
}
public void setY(int y) {
Y = y;
}
}
//class:DragableIcon the component
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import javax.swing.Action;
import javax.swing.ActionMap;
import javax.swing.InputMap;
import javax.swing.JComponent;
import javax.swing.KeyStroke;
import javax.swing.TransferHandler;
public class DragableIcon extends DragAbleComponent {
private Image image;
private MouseEvent firstMouseEvent = null;
private static boolean installKeyBordMapings = true;
/**
*
*/
private static final long serialVersionUID = 1L;
public DragableIcon(Image image) {
super();
this.image = image;
this.setFocusable(true);
this.addMouseListener(this);
this.addFocusListener(this);
this.addMouseMotionListener(this);
this.initKeyBordMaping();
}
private void initKeyBordMaping(){
if (installKeyBordMapings) {
InputMap imap = this.getInputMap();
// imap.put(KeyStroke.getKeyStroke("ctrl X"),
//
TransferHandler.getCutAction().getValue(Action.NAME));
imap.put(KeyStroke.getKeyStroke("ctrl C"),
TransferHandler.getCopyAction().getValue(Action.NAME));
imap.put(KeyStroke.getKeyStroke("ctrl V"),
TransferHandler.getPasteAction().getValue(Action.NAME));
}
ActionMap map = this.getActionMap();
//
map.put(TransferHandler.getCutAction().getValue(Action.NAME),
// TransferHandler.getCutAction());
map.put(TransferHandler.getCopyAction().getValue(Action.NAME),
TransferHandler.getCopyAction());
map.put(TransferHandler.getPasteAction().getValue(Action.NAME),
TransferHandler.getPasteAction());
}
@Override
protected void paintComponent(Graphics graphics) {
Graphics g = graphics.create();
//Draw in our entire space, even if isOpaque is false.
g.setColor(Color.WHITE);
g.fillRect(0, 0, image == null ? 125 : image.getWidth(this),
image == null ? 125 : image.getHeight(this));
if (image != null) {
//Draw image at its natural size of 125x125.
g.drawImage(image, 0, 0, this);
}
//Add a border, red if picture currently has focus
if (isFocusOwner()) {
g.setColor(Color.RED);
} else {
g.setColor(Color.BLACK);
}
g.drawRect(0, 0, image == null ? 125 : image.getWidth(this),
image == null ? 125 : image.getHeight(this));
// g.drawImage(image, 0, 0, this);
g.dispose();
}
public void mouseDragged(MouseEvent e) {
//Don't bother to drag if the component displays no image.
if (image == null) return;
if (firstMouseEvent != null) {
e.consume();
//If they are holding down the control key, COPY rather
than MOVE
int ctrlMask = InputEvent.CTRL_DOWN_MASK;
int action = ((e.getModifiersEx() & ctrlMask) == ctrlMask)
?
TransferHandler.COPY : TransferHandler.MOVE;
int dx = Math.abs(e.getX() - firstMouseEvent.getX());
int dy = Math.abs(e.getY() - firstMouseEvent.getY());
//Arbitrarily define a 5-pixel shift as the
//official beginning of a drag.
if (dx > 5 || dy > 5) {
//This is a drag, not a click.
JComponent c = (JComponent)e.getSource();
TransferHandler handler = c.getTransferHandler();
//Tell the transfer handler to initiate the drag.
handler.exportAsDrag(c, firstMouseEvent, action);
firstMouseEvent = null;
}
}
}
public void mouseMoved(MouseEvent e) {}
public void mousePressed(MouseEvent e) {
//Don't bother to drag if there is no image.
if (image == null) return;
firstMouseEvent = e;
e.consume();
}
public void mouseReleased(MouseEvent e) {
firstMouseEvent = null;
}
public static boolean isInstallKeyBordMapings() {
return installKeyBordMapings;
}
public static void setInstallKeyBordMapings(boolean
installKeyBordMapings) {
DragableIcon.installKeyBordMapings = installKeyBordMapings;
}
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
}
//and here is my pane
import java.awt.BorderLayout;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import cn.com.ynld.bms.applet.gui.handler.IconTransferHandler;
import cn.com.ynld.bms.applet.service.TransfAble;
import cn.com.ynld.bms.applet.service.UpdateAble;
public class ElectronicPane extends JPanel
implements ItemListener,UpdateAble{
private UpdateAble updateAble = null;
private ScrollAbleImage image;
private JToolBar toolBar;
private IconTransferHandler handler;
/**
*
*/
private static final long serialVersionUID = 1L;
public ElectronicPane(){
super(new BorderLayout());
handler = new IconTransferHandler();
this.creatToolBar();
this.add(this.toolBar);
this.setTransferHandler(handler);
}
public void itemStateChanged(ItemEvent e) {}
public void addTransferAble(String key, TransfAble transferAble) {
// TODO
}
public TransfAble getTransferAble(String key) {
// TODO
return null;
}
public void removeTransferAble(String key) {
this.updateAble.removeTransferAble(key);
}
public void update(UpdateAble updateAble) {
this.updateAble = updateAble;
this.init();
}
private void init(){
this.image = new ScrollAbleImage();
this.image.update(updateAble);
this.add(image,BorderLayout.CENTER);
this.repaint();
//this.image.repaint();
}
private void creatToolBar(){
this.toolBar = new JToolBar();
DragableIcon alarm = new
DragableIcon(createImageIcon("/root/Desktop/drawing/png-0003.png",
"alarm").getImage());
alarm.setTransferHandler(handler);
DragableIcon damage = new
DragableIcon(createImageIcon("/root/Desktop/drawing/png-0007.png",
"device").getImage());
alarm.setTransferHandler(handler);
this.toolBar.add(alarm);
this.toolBar.addSeparator();
this.toolBar.add(damage);
this.toolBar.setFloatable(false);
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path,
String description) {
// java.net.URL imageURL =
DragPictureDemo.class.getResource(path);
if (path == null) {
System.err.println("Resource not found: "
+ path);
return null;
} else {
return new ImageIcon(path, description);
}
}
}
the problem is i add DragableIcons to my toolbar but only the first
icon can be seen!!!!
what's wrong
thanks for any help!
- 5
- POSSIBLE SECURITY PROBLEM in Java 5!This happened accidentally, but an attacker might use this
intentionally in a hostile applet to perpetrate a denial of service
attack.
I had a Java app compile and run that generated ~200 threads accessing
the network. It suddenly stopped functioning; it hadn't hung -- the UI
still worked -- but the network activity dropped to zero and it
wouldn't do anything. (Picture a Web browser that works, except every
attempt to go to a page produces a timeout or the browser just spins.
Sort of like that: the UI is working but the backend isn't.)
Naturally, suspecting a bug, I exited and went to rerun the app, this
time attaching a debugger process. Failed. Eclipse showed "Launching
(83%)..." and stuck there. Details showed "searching for free socket"
or some such.
At this point I discovered that almost every other network using app on
the system had locked up. Shareaza, MSN messenger, etc. -- Firefox was
the only survivor, and it would not function (see above description of
semi-functional Web browser; this was Firefox after the accident).
Task Manager showed two Java tasks, one with over 100 threads;
presumably the app that was supposed to have exited. I repeatedly
attacked it with "End Process" and "End Process Tree"; no effect.
Eclipse, when exited, likewise remained as a headless zombie: no
visible UI but still an Eclipse process and a Java task with a couple
of threads. Neither could be killed.
After over half an hour, none of the tasks had exited that had been
told in various increasingly imperative ways to terminate, and the
network remained unusable. I concluded I had to reboot.
To top it off, a clean reboot wasn't possible -- the system would close
a couple apps then just sit there. I had to power-cycle the fucking
box! This on an NT kernel OS and with the trigger being Java, the
paragon of security and non-crashingness? What the fuck?!
Now I've lost all my open Explorer folders and various other
inconveniences can all be laid at the doorstep of ... whatever the fuck
it was that happened.
Can anyone explain this event? Opening a lot of network connections
shouldn't be a problem on XP, and it sure as hell shouldn't render the
system unusable to the point of forcing a cold boot. Even if the Java
app ate all the free network sockets, it should have been terminatable,
and killing it should have released the sockets. Even terminating other
tasks (such as the nonresponsive Shareaza) that used the network didn't
free any up (Shareaza, when end-tasked, disappeared promptly from all
task and process lists, but Firefox didn't magically start working
again).
Annoyingly, the system help also stopped working(!); I was desperate
enough to actually resort to Help and Support Center to find info on
terminating processes and/or freeing sockets, given that the usual
first-resort, Google, was rendered unavailable by the problem.
This Should Not Have Happened.
We have at least 3 separate problems:
* Java can do things that DoS a Win32 box, without doing anything but
open sockets.
Applets can open sockets (though only back to the originating site);
Win32 boxen are
extremely commonplace. You do the math.
* Windows XP SP2, with all the latest updates (including and especially
security updates),
allows a single app to hog all the network sockets, and apps that
want a socket but
can't get one seem usually to hang rather than gracefully report an
error condition to the
user.
* And it does not seem to properly "terminate with prejudice" an
unresponsive process or
free up resources one had when it does terminate it successfully. Is
there no equivalent of
"kill -9", via Task Manager or otherwise, even when you're logged on
as administrator?
It looks like some problems (can't kill processes, processes can kill
parts of the system's overall functionality, killed tasks don't always
have their resources released by the OS) from the bad old days of
Windows 3.1 are still present and accounted for...
Win32 SP2 with all security fixes;
JDK/JRE 1.5.0_06 (latest, as of a couple weeks ago anyway)
- 6
- question about RMIHi,
What is the best data type to transfer a resultset from server to
client using RMI ?
Thanks
- 9
- KeyRelease Event affects next Internal FrameHi,
I am working on an MDI application using JInternalFrames. I have
forms to fill that have the 'Next', 'Back' and 'Cancel' buttons. I am
assigning key presses (Enter, Alt+left and Esc respectively) through
KeyRelease event. In addition, the 'Next' button is assigned as the
default button using
this.getRootPane().setDefaultButton(btnOK). However, I find that when
I run the program and press the Enter key, after accepting the enter
and processing the button action, it loads the next JInternalFrame and
appears to call the KeyRelease event for this form too. Since I have
entries that must be filled, this raises errors that entries are not
filled.
Can anyone tell me what I am doing wrong.
Thanks in advance,
Arun Kumar Srinivasan
- 9
- pack vs validateRoedy Green <email***@***.com> wrote in
news:email***@***.com:
> Pack appears to do some "extra stuff" then call validate.
>
> When do you use pack and when validate. What is the difference?
FWIW, I've only ever seen "pack" called before "show" - it is called once
in the lifetime of the frame. However, validate can get called at any time.
I'm not entirely sure why this is the case, however.
--
With kind regards,
Josh R.
- 9
- Apache command chain questionHi,
I am new to the command chain pattern and kindly bear with me if this
is a basic question.
In the catalog below,
<catalog>
<chain main>
<command 1/>
<command 2 lookup(sub)/>
<command 5/>
</chain>
<chain sub>
<command 3>
<command 4>
</chain>
If command 3 were to return true, will command 5 execute ? Thanks.
- 9
- Searching ProgramI have to create a "Search Engine Program" in Java. I'm using Java /
Struts and XML.
Thanking you
- 9
- Nice Photos from Vista Launch at New York Finally PublishedA BadVista at Microsoft's New York launch parties
,----[ Quote ]
| We may not have Lebron James, Roy Schestowitz, Shaun Alexander, or
other such
| celebrity software experts on our side, email***@***.com but
judging from the
| reception we received from this crowd, people--once they know the
details--
| are very concerned with Microsoft's attempted hoodwink masquerading
| as an "upgrade", and are very willing to listen to us plain
unfamous
| people.
`----
http://badvista.fsf.org/blog/a-badvista-at-microsof
- 11
- eclipse-nls-sdk updateHi debian-java list,
In Debian unstable, eclipse-nls-sdk pacakge is too old and useless now.
I've posted it to BTS #340823 and make packages and announced to Japanese
Debian community about my packages. Some of them uses my packages and they
say it works well.
I want eclipse-nls-sdk maintainer to take it to Debian, but he cannot
work for Debian now (you know). So someone take this updated packages
to Debian, I hope.
packages and source are here.
http://www.mithril-linux.org/~henrich/debian/package/
I wish any reply will come from this list :)
# and please CC to me. I'm not on this list now.
--
Regards,
Hideki Yamane henrich @ debian.or.jp/samba.gr.jp/iijmio-mail.jp
http://www.mithril-linux.org/~henrich/
--
To UNSUBSCRIBE, email to email***@***.com
with a subject of "unsubscribe". Trouble? Contact email***@***.com
- 11
- UI managementI am having a problem updating the laf of my java program.
I have changed the laf using:
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
which works fine, then I use successive calls to:
SwingUtilities.updateComponentTreeUI();
to update container component laf in my main window.
The problem is, when I call SwingUtilities.updateComponentTreeUI(mainMenu);
it does not update the laf of all of the menu items themselves. Only some of
the menu items take the new laf and some do not????
Anyone have any idea what could be causing this? Or how to fix this?
- 14
- cannot run javac commandHi,
Complete newbie to Java.
I installed JDK 5.0 Update 9 with NetBeans 5.5 and started the tutorial.
No problems with using Netbeans--but can't compile the hello world prog
using command line.
I also want to write the program from scratch using text editor.
That's done but when I go to javac helloworldapp.java as system does
not recognize command "javac"
Error message: Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\>javac
'javac' is not recognized as an internal or external command,
operable program or batch file.
C:\>
Here is my Class path: .;C:\Program
Files\Java\jre1.5.0_06\lib\ext\QTJava.zip
QTJAVA C:\Program Files\Java\jre1.5.0_06\lib\ext\QTJava.zip
I'm sure I'm doing something wrong here....
Any help?
Thanks!
--
- 16
- Help! Where's my UIManagerOn 29 avr, 16:19, Zerex71 <email***@***.com> wrote:
> Greetings,
>
> I spent a frustrating amount of time yesterday trying to figure out
> how to get access to the UIManager class. I am dusting off my Swing
> skills after a number of years and I shouldn't have to be fighting the
> compiler - the Swing paradigm is enough of a challenge as it is.
>
> I am simply trying to set the LAF of my app to use the cool Java metal
> look instead of the default Windows LAF. Here's the offending LOC:
>
> import javax.swing.UIManager;
>
> UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
>
> It throws the four exceptions listed in the Java documentation at Sun,
> leading me to believe it simply does not know where to find the
> UIManager class. I have a normal Java 1.6.0_05 installation.
>
How could it throw the 4 exceptions? Only one exception may be thrown
by a method at runtime, but not 4 at once.
I suspect that the *compiler* refuses to compile your code because the
method *might* throw one of these 4 exceptions, and you don't catch
them or rethrow them.
Since the call should never throw any of the exceptions (the class
name returned by getCrossPlatformLookAndFeelClassName() being of
course perfectly valid for any platform), I suggest you just catch
them and rethrow them as a runtime exception:
try {
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
}
catch(ClassNotFoundException e) {
// should never happen
throw new RuntimeException(e);
}
catch(InstantiationException e) {
// should never happen
throw new RuntimeException(e);
}
catch(IllegalAccessException e) {
// should never happen
throw new RuntimeException(e);
}
catch(UnsupportedLookAndFeelException e) {
// should never happen
throw new RuntimeException(e);
}
JB.
|
| Author |
Message |
Chris
|
 Posted: 2005-10-28 8:07:00 |
Top |
java-programmer, java.util.zip not handling Unicode filenames
I have a zip file that contains files with Asian filenames.
java.util.zip.ZipFile opens it, but the filenames are garbled. Is there any
way to handle filenames that contain unicode characters?
|
| |
|
| |
|
Chris Uppal
|
| Posted: 2005-10-28 23:43:00 |
Top |
java-programmer >> java.util.zip not handling Unicode filenames
Chris wrote:
> I have a zip file that contains files with Asian filenames.
> java.util.zip.ZipFile opens it, but the filenames are garbled. Is there
> any way to handle filenames that contain unicode characters?
The ZIP file format is not Unicode aware. Filenames are just 8-bit strings
internally, with (afaik) no defined charset, or Unicode encoding.
That means that the writer and reader of the file have to agree on a mutually
comprehensible format.
If you are in control of both ends (and if you weren't using java.util.zip.*)
then it would be sensible to standardise on UTF-8. If not then you'll have to
find out what character encoding the application that created the archive was
using (or more likely assuming without thinking about it), and attempt to
decode that.
But now comes the /really really stupid/ bit. What encoding do you think the
java.util.zip.* assumes ? One sensible choice would be to treat the filenames
as "raw" character data, so you would at least be able to see the character
values that were used in the ZIP file names and could reverse-encode them.
Another choice, even more sensible (but more work), would be to allow us to
specify the charset used when decoding the binary form of the names. A rather
stupid idea would be to hard-code a charset. An especially stupid idea would
be to hard-code the choice of a variable-width charset since that could easily
make it impossible to read a valid file. A really, really, stupid idea would
be to hard-code a variable-width charset that nobody else on Earth ever uses.
Guess what Sun have done...
The java.util.zip.* stuff is hardwired with the assumption that filenames in
ZIP files (and probably comments too, but I haven't checked) are encoded in the
weird non-standard, incompatible, modified version of UTF8 that is used
internally by some low-level JVM stuff (principally the JNI interface, and JVM
classfile format) ! Nobody else on Earth uses it for anything.
Why ? I dunno. I just can't get over how stupid it is...
Anyway, the upshot of that is that you will only be able to read ZIP filenames
correctly if one of the following apply:
1) The filenames are all 7-bit ASCII.
2) The filenames are Unicode, AND all the characters are in the 16-bit Unicode
range, AND the application that generated the ZIP file used UTF8 for filename
encoding. (That /should/ work over the limited range since nul-bytes are
either illegal or unlikely in file names).
3) The filenames are Unicode, AND the OS is Windows (which uses UTF-16 for
filenames), AND the application that wrote it was under the impression that
Unicode is 16-bit and therefore blindly converted each 16-bit quantity into 1,2
or 3, bytes in the same way as UTF-8 would.
4) The file was created with Sun's bloody idiotic java.util.zip.*.
In point of fact, neither (2) nor (3) seem particularly unlikely to me, but
apparently neither case applies to your problem.
If the filenames are /not/ Unicode but are in the user's local charset (8-bit
or variable-width) then you are stuffed, I'm afraid. There's not even any
guarantee that the java.util.zip.* will not throw errors when it tries to read
the filenames, since they may not be valid byte-sequences according to the
encoding that Sun has hard-wired. The same goes if the filenames are Unicode,
use characters outside the 8-bit range, and were written in correct UTF-8.
-- chris
|
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|
| |
|
Roedy Green
|
| Posted: 2005-10-31 12:04:00 |
Top |
java-programmer >> java.util.zip not handling Unicode filenames
On Fri, 28 Oct 2005 16:43:26 +0100, "Chris Uppal"
<email***@***.com> wrote, quoted or indirectly
quoted someone who said :
> modified version of UTF8
does this encoding have a name in the nio CharSet sense?
What are the differences between the variants?
--
Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.
|
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Index ‹ java-programmer |
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- 1
- OutOfMemoryError problemHi,
I am a user of cruisecontrol ( continuous integration server). As long
as I have used it I have had problems with
java.lang.OutOfMemoryError's. I have gotten numerous ideas on how to
handle it. Some
resonable and some more unrealistic. However lately I dicided that I
need to dig deeper into this.
I use two ways to perform build and test. Both ways use the same 'ant'
and the same 'build file'.
The difference is in how the build is triggered.
Shell script
=========
Here I use a shell script to start ant.
java -Xms512M -Xmx756M -classpath .......
Cruisecontrol
==========
Here I start cruisecontrol ( a java program) that starts ant.
I set Xms and Xmx for cruisecontrol as well as ant.
When I execute the shell script the 'junit' and 'junitreport' tasks
execute nicely.
On the other hand when I execute 'cruisecontrol' I get a
java.lang.OutOfMemoryError when I execute the 'junit-report'.
Trace:
--------
BUILD FAILED
java.lang.OutOfMemoryError
at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1225)
at
org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecut
or.java:40)
at
org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at org.apache.tools.ant.Main.runBuild(Main.java:668)
at org.apache.tools.ant.Main.startAnt(Main.java:187)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
Caused by: java.lang.OutOfMemoryError
--- Nested Exception ---
java.lang.OutOfMemoryError
I did some investigation in ant ( source code ) and found out the each
junit test suite result ( xml-file) is merged into one big xml file.
There are two steps in the code. Step 1 works ok! Step 2 is failing
siince the big merged file is not complete. Could it be something with
the jvm?
All hints are welcome.
cheers,
//mikael
Step 1 - creating the dom document
-------------------------------------------
protected Element createDocument() {
// create the dom tree
DocumentBuilder builder = getDocumentBuilder();
Document doc = builder.newDocument();
Element rootElement = doc.createElement(TESTSUITES);
doc.appendChild(rootElement);
generatedId = 0;
// get all files and add them to the document
File[] files = getFiles();
for (int i = 0; i < files.length; i++) {
File file = files[i];
try {
log("Parsing file: '" + file + "'",
Project.MSG_VERBOSE);
if(file.length()>0) {
Document testsuiteDoc
=
builder.parse(FileUtils.getFileUtils().toURI(files[i].getAbsolutePath()));
Element elem = testsuiteDoc.getDocumentElement();
// make sure that this is REALLY a testsuite.
if (TESTSUITE.equals(elem.getNodeName())) {
addTestSuite(rootElement, elem);
generatedId++;
} else {
//wrong root element name
// issue a warning.
log("the file " + file
+ WARNING_INVALID_ROOT_ELEMENT,
Project.MSG_WARN);
}
} else {
log("the file " + file
+ WARNING_EMPTY_FILE,
Project.MSG_WARN);
}
} catch (SAXException e) {
// a testcase might have failed and write a zero-length
document,
// It has already failed, but hey.... mm. just put a
warning
log("The file " + file + WARNING_IS_POSSIBLY_CORRUPTED,
Project.MSG_WARN);
log(StringUtils.getStackTrace(e), Project.MSG_DEBUG);
} catch (IOException e) {
log("Error while accessing file " + file + ": "
+ e.getMessage(), Project.MSG_ERR);
}
}
return rootElement;
}
Step 2 - write the DOM Tree to file
----------------------------------------
protected void writeDOMTree(Document doc, File file) throws IOException
{
OutputStream out = null;
PrintWriter wri = null;
try {
out = new BufferedOutputStream(new FileOutputStream(file));
wri = new PrintWriter(new OutputStreamWriter(out, "UTF8"));
wri.write("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n");
(new DOMElementWriter()).write(doc.getDocumentElement(),
wri, 0, " ");
wri.flush();
// writers do not throw exceptions, so check for them.
if (wri.checkError()) {
throw new IOException("Error while writing DOM
content");
}
} finally {
FileUtils.close(wri);
FileUtils.close(out);
}
}
- 2
- SourceDataLine ProblemA while back I implemented sound using javax.sound.sampled into my Tandy
Color Computer 2 applet.
The Color Computer had a 6-bit DAC used to generate audio. I basically
take the values written to the DAC and then feed them (although at a
much higher rate) into a SourceDataLine.
The problem is that the sound can crackle or break up depending on the
program emulated. I can prevent this by either feeding the data to the
SorceDataLine at a higher rate or by reducing the sample rate on the
AudioFormat. Both of these methods fix the breakups but then the pitch
drops enough that the sound is no longer accurately emulated.
I just don't understand the workings of javax.sound.sampled well enough
to figure out a workaround for this problem - it seems like it should be
possible.
Any ideas?
Brad
Mocha - The Tandy Color Computer 2 Applet
http://members.cox.net/javacoco/
- 3
- 4
- Problems with tomcatHi guys, I have some problems, I'm trying to run tomcat in windows
2000 pro and actually it runs but when I use the browser http://localhost:
doesn't work, What should be the problem? I've changed the port to 80
but still having the same problem. Thx in advance
- 5
- Registering Connector/J driverHi. I have
- mySQL 1.4
- Connector/J 3.0.15
I want to use Java to query mySQL database via Connector/J.
Connector/J documentation at
http://dev.mysql.com/doc/connector/j/en/index.html instructs to
compile and run the following Java code to register the Connector/J
driver:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
// Notice, do not import com.mysql.jdbc.*
// or you will have problems!
public class LoadDriver {
public static void main(String[] args) {
try {
// The newInstance() call is a work around for some
// broken Java implementations
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception ex) {
// handle the error
}
}
}
// Error:
// SQLJConnectorRegister1failed.java:8:
// class LoadDriver is public, should be declared in a file named
// LoadDriver.java
Where should I have this LoadDriver class/java file? It doesn't come
with any of the packages I have (java.sql.* or connector/J driver
classes). Hence I can't "supply a class that implements Driver
interface" which would I gather register the driver. I have set the
classpath to the driver's jar, so it should find that class.
*
And then SQL queries would be possible. That would be an achievement
as such, never loaded/registered a driver in my life, or programmed
much anyway.
Appreciate any help over this.
Best, Harri S
Finland
language technologist
- 6
- Basic java program structure; Was: Problems with multidimensional arrays and global variables<top posting seemed more appropriate for this post>.
Being a Java newbie and having been struggling with the basic concepts of
the structure of a java program (as well as "static") I would like to say
that this is the best example I have seen so far of the basic form of a java
program. Nice, simple and after reading it I think I finally understand
what is going on. I have read far too many books and examples that seem to
enjoy obfuscating the concept they are trying to explain with way too many
extraneous details.
Thank you.
Don Freeman
If this group has a FAQ I nominate the following for entry:
"Carl" <email***@***.com> wrote in message
news:fS8Pd.3241$email***@***.com...
> In short, static members do not belong to an object. You do not need to
> create an object to access the members. The main() method must be static
> since it will be the first method called and there will not yet have been
> a chance for you to create any objects. IMO, the main method should then
> proceed to operate on OBJECTS, unless you have a good reason for using
> static.
>
> A simple class example would be as follows:
> // code -->
> public class Foo {
>
> // this can be accessed by any of Foo's methods
> private int someVariable;
>
> // This gets called when a new Foo object is created.
> public Foo(){
> // do initial setup
> }
>
> public void runProgram(){
> // start doing your processing
> }
>
> public static void main(String[] args) {
> // process args[]
>
> Foo foo = new Foo(); // create an instance of the Foo class.
> foo.runProgram(); // start running the Foo class.
> }
> }
> // <-- end code
- 7
- Open Source Distributive Cache solutionHi,
I am looking for an open source's distributive cache solution. One that
can be used for a clustered weblogic servers environment, the cache has
to be read and write, and the cache itself need to be fail-safe.
Anyone has some recommandations?
Thanks,
Edmond
- 8
- Little problem with ant install taskHi,
I found out that i can use ant for installing my web application.
great, I have copied some code from an example and added the taskdef's
to the top of my build.xml.
Then I copied the catalina-ant.jar into my java classpath.
But when I run it, I get :
"A class needed by class org.apache.catalina.ant.InstallTask cannot be
found: org/apache/tools/ant/Task"
I looked into the catalina-ant.jar and could not find a Task class
indeed, but then, where is it...?
Taskdef:
<taskdef name="install"
classname="org.apache.catalina.ant.InstallTask" />
<taskdef name="remove"
classname="org.apache.catalina.ant.RemoveTask" />
Target:
<target name="install" depends="war" description="Install servlet
on tomcat.kochan.de">
<install url="${tomcat.url}" username="${manager.username}"
password="${manager.password}" path="${app.path}"
war="jar:file:/${war.dir}/${project}.war!/" />
<sleep seconds="2"/>
</target>
Thanks for help!
Werner
- 9
- XML Validation with JavaHi
For several days I've been trying to validate a very simple XML-Document
against an XML Schema - so far without success. I've tried several
approaches, using libraries like Xerces, JAXP and an Oracle-library, but
none of those worked the way for example XML Spy works.
Here is my Schema:
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="root"/>
</xsd:schema>
This is the (invalid) XML-File that references the schema: <?xml
version="1.0" encoding="UTF-8"?> <root
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation='test.xsd'> <a></a> </root>
This is my first try to validate the Document against the schema:
try { DOMParser parser = new DOMParser();
parser.setFeature("http://xml.org/sax/features/validation",true);
parser.setFeature("http://apache.org/xml/features/validation/schema",true);
parser.setFeature("http://apache.org/xml/features/validation/schema-full-che
cking",true); parser.parse("C:\\test.xml"); }
catch(Exception ex) { ex.printStackTrace(); }
This runs without problems, however, it doesn't report a validation-error.
My second try:
try { SAXParserFactory parserFct =
SAXParserFactory.newInstance(); parserFct.setValidating(true);
parserFct.setFeature("http://xml.org/sax/features/validation", true);
parserFct.setFeature("http://apache.org/xml/features/validation/schema",
true);
parserFct.setFeature("http://apache.org/xml/features/validation/schema-full-
checking",true); javax.xml.parsers.SAXParser parser =
parserFct.newSAXParser(); parser.parse("C:\\test.xml", new
MyHandlerBase()); } catch(Exception ex)
{ ex.printStackTrace(); }
This is the Errorhandler I used:
class MeinErrorHandler implements ErrorHandler{ boolean b = false;
public void warning(SAXParseException e) throws SAXException {
System.out.println("WARNUNG: " + e); b = true; } public void
error(SAXParseException e) throws SAXException {
System.out.println("FEHLER: " + e); b = true; } public void
fatalError(SAXParseException e) throws SAXException {
System.out.println("LEIDER, LEIDER, AUS: " + e); } public boolean
warninghappened(){ return b; }}
Again, no validation-error.
My third try:
InputSource is = null; DOMParser parser = new DOMParser();
Document doc = null; try {
parser.setFeature("http://xml.org/sax/features/validation",true);
parser.setFeature("http://apache.org/xml/features/validation/schema",true);
parser.setFeature("http://apache.org/xml/features/validation/schema-full-che
cking",true);
parser.setProperty("http://apache.org/xml/properties/schema/external-noNames
paceSchemaLocation", "C:\\test.xsd" ); is = new
InputSource(new FileReader("C:\\test.xml"));
parser.parse(is); } catch(Exception ex)
{ ex.printStackTrace(); }
Again, no validation-error.
My fourth try involved the oracle.xml.parser.schema and
oracle.xml.parser.v2-packages.
Here is the code:
public void process(String xsdURI, String xmlURI) throws Exception
{
XSDBuilder builder = new XSDBuilder();
URL url = createURL(xsdURI);
// Build XML Schema Object
XMLSchema schemadoc = (XMLSchema) builder.build(url);
DOMParser dp = new DOMParser();
url = createURL(xmlURI);
// Set Schema Object for Validation
dp.setXMLSchema(schemadoc);
dp.setValidationMode(XMLParser.SCHEMA_VALIDATION);
dp.setPreserveWhitespace(true);
dp.setErrorStream(System.out);
try
{
System.out.println("Parsing " + xmlURI);
dp.parse(url);
System.out.println("The input file <" + xmlURI + "> parsed
without errors");
}
catch (XMLParseException pe)
{
System.out.println("Parser Exception: " + pe.getMessage());
}
catch (Exception e)
{
System.out.println("NonParserException: " + e.getMessage());
}
}
This worked fine with the test.xml-Document, however, when I tried to
validate a more complex document which used keys and key-references, it
couldn't validate the Document although XML-Spy had no problem with it.
Am I missing something here? Does anybody know those problems and has a
solution for it, or perhaps a sample-code that works? Any help would be
greatly appreciated.
Thanks in advance
Mathias Winklhofer
- 10
- bypassing IISHi
We have an architecture where users log in to their
"windows" pcs using Microsoft Active Directory
and requests are then sent as follows:
client -> IIS -> Tomcat
An isapi redirector resides at IIS which forwards the request to
Tomcat.
isapi redirect would appear to populate the HTTP header with
the user's credentials.
My question is: how can we avoid the overhead of IIS
and send requests directly to Tomcat for authentication against the
ldap server as before.
(The issue I see is how to populate the HTTP header with the
user details?)
Regards
- 11
- How to stop output to stdoutHi,
I am using RXTXcomm to communicate with the serial interface. My
programs output this everytime the RXTXcomm library is loaded:
Stable Library
=========================================
Native lib Version = RXTX-2.1-7
Java lib Version = RXTX-2.1-7
I don't like this output anytime the program runs. I tried to redirect
System.out but it didn't work. Does anybody know how to put RXTXcomm
into "silent mode"?
Thanks, Juergen
- 12
- As an added bonus, cacti come in unique shapes and sizes, and many even show off colorful blooms.Those unevolved men truly irritate me.
Having twice defeated the counterrevolution, the revolution is faced
with a new and furious offensive. Perhaps unbeknownst to him, the stance
he has adopted seems to reinforce the negative image of Islam, that of
rabid militancy against all other faiths. This week, I have some great
ideas on how to make your own plant markers from common household items.
If you haven't noticed, a lot of garden centers and nurseries are
running clearance sales on plants and other garden supplies.
ss
*** CNHC *** CNHC *** CNHC ***
Trade Date: Friday, November 24, 2006
Company: China Health Management Corp.
Symbol: CNHC
Price: $1.34
Target: $10
CNHC BREAKING NEWS:
China Health Management Corp. Announces the Hospital's Setup Proposal
Received Additional Approval from Kunming City, Yunnan, China
CNHC IS BOUND TO BLOW UP! THIS AMAZING NEWS ALONG WITH HEAVY PR PROMOS
ARE DRIVING IT NUTS! WATCH CNHC GO OFF THE CHAIN ON FRIDAY NOV 24!
ss
Does the mere mention of these ailments make your skin itch? His efforts
were all the more heroic for being nonviolent. As an added bonus, cacti
come in unique shapes and sizes, and many even show off colorful blooms.
That's why I was so thrilled when I came across this tip that makes slow
watering my plants easier than ever. Zakaria might not be enhancing the
global image of Islam in the manner majority world Muslims would prefer:
an image of peace.
Sometimes they were sweet, sometimes they were bitter, and they were
always difficult to harvest after a snowfall.
But US scientists report they have now isolated these cell-like
structures in tissue from diseased human arteries.
Well, don't head to your local drugstore for relief - go to your garden.
Find out how to make a charming and unique windchime that will make your
garden a haven for your senses.
His efforts were all the more heroic for being nonviolent. The article
published in The Toronto Star describes the harsh reality that millions
of poor are facing in India.
Zakaria might not be enhancing the global image of Islam in the manner
majority world Muslims would prefer: an image of peace.
His efforts were all the more heroic for being nonviolent.
Daffodils, also known as jonquils or narcissus, are my favorites.
Daffodils, also known as jonquils or narcissus, are my favorites.
The wives or kiths and kin of the Ministers or MPs, her beloved
sycophants are flocking in her or the BNP offices may be at Hawa Bhaban
also, to try their luck.
Click on the link below for more poinsettia information. Does the mere
mention of these ailments make your skin itch? Click on the link below
to find a great way to reuse your tree in the garden.
If the allegations in this article are true, things look bleak for peace
in the Middle-East.
That's why I was so thrilled when I came across this tip that makes slow
watering my plants easier than ever. So the Americans are cutting off
money to Chalabi. The moral of the story, according to Aesop: it is
easier to get into the enemys toils than out again. The article
published in The Toronto Star describes the harsh reality that millions
of poor are facing in India. This week I'll show you four simple things
you can add to get your soil started down the road to perfection.
Zakaria might not be enhancing the global image of Islam in the manner
majority world Muslims would prefer: an image of peace.
I beg your Majesty's pardon, replied the fox, but I noticed the track of
the animals that have already come to you, and while I see many hoof
marks going in, I see none coming out. How come they were so gullible
that they had overlooked his scam filled past and now all of a sudden
the good man is becoming an evil man? If the allegations in this article
are true, things look bleak for peace in the Middle-East. Here are four
simple things that can help you keep your garden balanced visually. But
a little basic know-how can make the job a breeze.
--
To UNSUBSCRIBE, email to email***@***.com
with a subject of "unsubscribe". Trouble? Contact email***@***.com
- 13
- problems with getting blob from databaseI`m writing from file to blob. Than I need to get blob content again
and write it to file. When I open this file, I see the wrong symbols.
Can anybody help me?
Here is my code:
////////////////////////////
to update file content
///////////////////////////
private void updateFileContent(File serverFile, java.io.File
clientContentFile) throws MainException
{
PreparedStatement preparedStatement = null;
try
{
connection = connect();
String query = "update panta_file_substance\n" +
"set content = ?\n" +
"where\n" +
" file_id = ?"
preparedStatement = getPreparedStatement
(query, connection);
int fileLenght = (int) clientContentFile.length();
InputStream is = new FileInputStream(clientContentFile);
preparedStatement.setBinaryStream(1, is, fileLenght);
preparedStatement.setLong( 2,
serverFile.getId().longValue() );
int result = preparedStatement.executeUpdate();
is.close();
}
catch (SQLException e)
{ throw new MainException(e.getMessage(), e); }
catch (FileNotFoundException e)
{ throw new MainException(e.getMessage(), e); }
catch (IOException e)
{ throw new MainException(e.getMessage(), e); }
finally
{
disconnect(null, preparedStatement, null);
}
}
//////////////////////////////////////////////////////////////////////////
to get file
/////////////////////////////////////////////////////////////////////////
public static void getFile(Connection connection) throws
SQLException
{
String query = "select \n" +
" panta_file_substance.content \n" +
"from \n" +
" panta_file_substance\n" +
"where \n" +
" file_id=?";
PreparedStatement preparedStatement = connection.
prepareStatement(ServerSQLProjectDAO.getFileContent());
preparedStatement.setLong(1, 7801295236381635588l);
ResultSet resultSet = preparedStatement.executeQuery();
Blob content = null;
if (resultSet.next())
{
content = (Blob) resultSet.getBlob("CONTENT");
}
java.io.File contentffFile = new java.io.File("C:\\Temp\\new");
try
{
OutputStream os = new FileOutputStream(contentffFile);
int bufferSize = 2048;
byte[] array = new byte[bufferSize];
BufferedOutputStream bos = new BufferedOutputStream(os,
bufferSize);
InputStream is = content.getBinaryStream();
BufferedInputStream bis = new BufferedInputStream(is);
int nBytes;
while ((nBytes = bis.read(array)) != -1)
bos.write(array, 0, nBytes);
bos.close();
bis.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
- 14
- use my JSP custom tag on click of buttonI have written a custom tag in a jsp
<test:attribs attribNames="<%=aenum%>">
<li> <b><%=aenum.nextElement()%></b>
</test:attribs>
It lists the request attributes.
Now i want the to list the same on click of a button or say on clicking
on an image( or consider for some specified event of a HTML component)
Can i use the custom tag for the same and if yes how?
Regards,
- 15
- Server-side tools surveyI'm currently working with JBoss/Tomcat, PostgreSQL, NetBeans, Struts,
XDoclet, Ant, JUnit, JUnitEE...and a few things I've probably forgotten
to mention.
What tools do *you* consider necessary for web application development?
--
Phillip Mills
Multi-platform software development
(416) 224-0714
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