Help with Keys in Map

Hi All,
I have a Map and I want to add entries - Key and Value. Now the Key is an Object (Some Object Key which has some instance variables). When I try to add the Key and Value only one entry gets stored. I know I am doing something Wrong.
class Key {
private Date time;
private long someNumber;
public Key(Date time, long someNumber) {
Any help would be appreciated
Thanks
--J

I am using TreeMap and I am unable to add to
diffferent instances of Key in the MapWhat do you mean different instances?
Thousands of developers are using Maps in Java every day. There's nothing wrong with it. If there's a problem, it's something you are doing.

Similar Messages

Help with multi-table mapping for one-to-many object inheritance

Hi,
I have posted on here before regarding this (Toplink mapping for one-to-many object inheritance but I am still having problems mapping my object model to my schema.
Object model
The Person and Organisation objects contain base information and have the primary keys person_id and organisation_id. It is important that there is no duplication of person and organisation records, no matter how many times they are saved in different roles.
There are two types of licenceholder in the problem domain, and the ILicenceHolder interface defines information and methods that are common to both. The PersonalLicenceHolder object represents one of these types of licenceholder, and is always a person, so this class extends Person and implements ILicenceHolder.
The additional information and methods that are required by the second type of licenceholder are defined in the interface IPremisesLicenceHolder, which extends ILicenceHolder. Premises licence holders can either be people or organisations, so I have two objects to represent these - PremisesLicenceHolderPerson which implements IPremisesLicenceHolder and extends Person, and PremisesLicenceHolderOrganisation which implements IPremisesLicenceHolder and extends Organisation.
The model is further complicated by the fact that any single Person may be both a PersonalLicenceHolder and a PremisesLicenceHolderPerson, and may be so several times over. In this case, the same basic Person information needs to be linked to several different sets of licenceholder information. In the same way, any single Organisation may be a PremisesLicenceHolderOrganisation several times over.
Sorry this is complicated!
Schema
I have Person and Organisation tables containing the basic information with the primary keys person_id and organisation_id.
I have tried to follow Donald Smith's advice and have created a Role table to record the specialised information for the different types of licence holder. I want the foreign keys in this table to be licenceholder_id and licence_id. Licenceholder_id will reference either organisation_id or person_id, and licence_id will reference the primary key of the Licence table to link the licenceholder to the licence. Because I am struggling with the mapping, I have changed licenceholder_id to person_id in an attempt to get it working with the Person object before I try the Organisation.
Then, when a new licenceholder is added, if the person/organisation is already in the database, a new record is created in the Role table linking the existing person/organisation to the existing licence rather than duplicating the person/organisation information.
Mapping
I am trying to use the toplink mapping workbench to map my PremisesLicenceHolderPerson object to my schema. I have mapped all inherited attributes to superclass (Person). The primary table that the attributes are mapped to is Person, and I have used the multi-table info tab to add Roles as an additional table and map the remaining attributes to that.
I have created the references PERSON_ROLES which maps person.person_id to roles.person_id, ROLES_PERSON which maps roles.person_id to person.person_id and ROLES_LICENCE which maps roles.licence_id to licence.licence_id.
I think I have put in all the relationships, but I cannot get rid of the error message "The following primary key fields are unmapped: PERSON_ID".
Please can somebody tell me how to map this properly?
Thank you.

I'm not positive about your mappings, but it looks like the Person object should really have a 1:M or M:M mapping to the Licenceholder table. This then means that your object model should be similar, in that Person object could have many Licenses, instead of being LicenceHolders. From the looks of it, you have it set up from the LicenceHolder perspective. What could be done instead if a LicenceHolder could have a 1:1 reference to a person data object, rather than actually be a Person. This would allow the person data to be easily shared among licences.
LicenceHolder1 has an entry in the LicenceHolder table and Person table. LicenceHolder2 also has entries in these tables, but uses the same entry in the Person table- essentially it is the same person/person_ID. If both are new objects, TopLink would try to insert the same person object into the Person table twice. I'm not sure how you have gotten around or are planning to get around this problem.
Since you are using inheritance, it means that LicenceHolder needs a writable mapping to the person.person_id field- most commonly done through a direct to field mapping. From the description, it looks like roles.person_id is a foreign key in the multiple table mapping, meaning it would be set based on the value in the person.person_id field, but the person.person_id isn't actually mapped in the object. Check to make sure that the ID attribute LicenceHolder is inheriting from person hasn't been remapped in the LicenceHolder descriptor to a different field.
Best Regards,
Chris

Where can I get some help with my Nokia Maps Licen...

My problem is I bought a license and a Nokia n97.
I originally bought the license on my n95 and was able to transfer my license to my new n97. But since I have upgraded to version 3.0 my license has dissapeared.
I tried doing the sim card transfer method and that works up to the point where it tries to associate it with my new sim card (I changed provides when I upgraded). When it gets to this point it simply states "No updates" and then keeps trying again and again. I have rolled it back to version 2 and now have the same problem.
Unfortunately I have lost the email I got when I registered and I can't find any information on how to get this email resent.
I have tried speaking with Nokia care here in Sydney, Australia and they said it is a known problem but there is no fix for it.
I would like to try entering my license code again manually to see if thats possible. But I am told and I can see that nokia doesn't allow its customers to get this information again.
Please do something about this Nokia. It's really a **bleep** situation.
Solved!
Go to Solution.

zgeek wrote:
My problem is I bought a license and a Nokia n97.
I originally bought the license on my n95 and was able to transfer my license to my new n97. But since I have upgraded to version 3.0 my license has dissapeared.
I tried doing the sim card transfer method and that works up to the point where it tries to associate it with my new sim card (I changed provides when I upgraded). When it gets to this point it simply states "No updates" and then keeps trying again and again. I have rolled it back to version 2 and now have the same problem.
Unfortunately I have lost the email I got when I registered and I can't find any information on how to get this email resent.
I have tried speaking with Nokia care here in Sydney, Australia and they said it is a known problem but there is no fix for it.
I would like to try entering my license code again manually to see if thats possible. But I am told and I can see that nokia doesn't allow its customers to get this information again.
Please do something about this Nokia. It's really a **bleep** situation.
Hi zgeek,
I had a similar issue when moving from my N95-1 (maps 3.0 installed and licence upgraded) to my N86-1 (maps 3.0 pre-loaded). Everything was fine with the old SIM but couldn't transfer the licence across to the new handset and SIM.
Nokia ended up giving me new licences as the old ones didn't want to work anymore.
Have you searched your e-mail for the word "openbit"? Not sure if they just do Europe or the worldwide licencing sales.
One of the Nokia staff that contributes to the support forums was able to assist me (see this thread), as long as you have your N95 IMEI and SIM and your N97 IMEI and SIM then they should be able to sort it - It took me 3 weeks to resolve and cbidlake was excellent and prodding the right people.
Hope that this helps.,
Alun.
N8-00 (Product Code: 059C5Q8 (UK Generic)) FW Belle (111.030.0609.377.01)
Orange 5.1, NK702, 7110, 8310, 7250, 6230, N70, N95-1, N86 8MP, N8-00

Help with key event

hi everyone i need some help. i have to write an java application thatcreates a panel with three labels and three key events to call upon different methods. i try to creat a JFrame but have problems. anyone can help?
Thanks

public class MyClass extends JFrame{
public MyClass(){
getContentPane().add( new Label("One") );
getContentPane().add( new Label("Two") );
getContentPane().add( new Label("Three") );
setSize(400,400);
setVisible(true);
public static void main(String[] args){
MyClass myclass = new MyClass();
public static void main is the starting point of a program.
When the frame is created using
MyClass myclass = new MyClass();
The control goes to the constructor where you can add three labels.
You can add three methods to MyClass and implement KeyListener in MyClass to build upon it.

Help with key issues

Im developing a backup file system for LANs in Java
Presently the client encrypts all files with the DES algorithm using the same key before sending them to a server. The key is generated the very first time the software is installed and stored in a file key.txt. All subsequent files will get encrypted using the key from this file.
The server keeps a record of which files(encrypted) it is holding for which client. The server obv does not keep the encryption key.
In my system, I want to implement a "Restore" system in which the client should be able to retrieve all his backed up files even if his entire HDD crashes. For this when the client comes up and the software is reinstalled, the user can command the software to start restore. The client searches the LAN for servers that may be holding its files (each computer on LAN will be identified through a unique user name) and retrieves them one by one.
Problem: Since the key.txt file is also lost because of HDD crash, the client will not able to decrypt the files for the user. Any suggestions on what can be done to address this issue? Does Java provide a way by which it always returns the same key given a username (string)?
Many thanks for your help
Message was edited by:
aybhave

Check out PBE. A snag would be that if I then knew the user name then I would know the key!

Can you Help with my white map on Kingdoms of Camelot, Facebook game??

Question
I have a problem when playing Kingdoms of Camelot on Facebook, since updating to FF7. The map area is prdominantly white and it shouldn't be... Is there a video driver, or something, issue that a plugin can fix? I love FireFox and don't want to play browse/play using Chrome... HELP!! Thanks! Brian ([email protected])

After going back last night and using the Adobe directions to uninstall flash paler from mac, I found it had previously been uninstalled improperly and each time I was trying to do over it was eating more memory and stalling more often.. but I filled the direction..and.. go to Adobe.com. then type in the search window uninstall flash player from mac... others would do the same to uninstall from windows or whatever operating system they might use. After being careful to use Adobe's method of uninstall, I then proceeded to make sure my both Chrome and Safari Cache's and histories were cleared and clean...I was instructed to then go back and reinstall Flash player..but not Shockwave, contrary to what I had previously been instructed. Next I did a shutdown and a clean restart.
Final step was to re-install Flash Player..but not Shockwave as I had previously been instructed..and to update my OS X to it's newest update.. It has run like a dream since.

Spilled beer; need help with keys!

Hi! I spilled beer onto my laptop. I checked everything out, cleaned what I could, and wasn't having a major problem with my keyboard. However, my number five key and my hyphen key aren't working at all anymore. I know it was to be something with the beer, they were working fine before. Is there anything I can do without having to pay huge amounts of money or have I lost the use of those keys forever?

Is there anything I can do without having to pay huge amounts of money or have I lost the use of those keys forever?
Beer and electronics don't mix well. You should be glad that your machine is working at all, even with the key problems. Your only real remedy is to take the machine into your local Apple Store or AASP and see if they can repair the keys only. I doubt that they can. I imagine that the damage is too great - and the Apple techs will be able to see that the liquid sensors on the logic board have been activated by a liquid spill. They may want to - or need to -exchange the entire logic board in order to repair the wayward keys.
If you don't want to spend 'huge amounts of money' to have your machine repaired, I would just live with the key problems... until other functions stop working, too.
Clinton

Need help with IDOC CREMAS_03 mapping

i was not able to figure out what values to assign to the following mandatory fields.
BEGIN
EDI_DC40(node not mandatory)
SEGMENT
TABNAM
DIRECT
IDOCTYP
MESTYP
SNDPOR
SNDPRT
SNDPRN
RCVPOR
RCVPRN
i am trying to map the following structure to the CREMAS_03
Vendor_MT
VendorNumber
LastName
SearchTerm
Currency
Address
Street
City
Zip
Country
i appreciate ur time and help

you dont need to map EDI_DC40, In the message mapping right click on the EDI_DC40 segment and click on disable field.
In the IDoc receiver communication channel, you should uncheck Apply control record values from payload
regards
SKM

Can someone help with key listeners... :(

on (keyPress "q") {
nextFrame();
on (keyPress "w") {
nextFrame();
on (keyPress "e") {
nextFrame();
I'm creating an app for television that emulates a google search engine. The keypress codes i used were to "fake" a person entering a search field. My problem is the KeyPress command no longer works when fullscreen. I've read that keylisteners work fullscreen but am entirely unfamiliar with that code.
If someone could provide me a script example that would effectively replicate the same function I would greatly appreciate it.

Mo_73 wrote:
I'm creating an app ...
Using what - Flash, Flex, ActionScript, ...? Please post in the appropriate forum; this is the Flash Player forum.

HT1976 help with error i.map.server error 1032.) is stopping my yahoo email

Help
imap error1032.)

This can be caused by corrupted cookies.
Clear the cache and cookies only from websites that cause problems.
"Clear the Cache":
*Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Firefox/Tools > Options > Privacy > Cookies: "Show Cookies"
If clearing cookies doesn't work then it is possible that the cookies.sqlite file that stores the cookies is corrupted.
Rename (or delete) cookies.sqlite (cookies.sqlite.old) and delete other present cookies files like cookies.sqlite-journal in the Firefox profile folder in case the file cookies.sqlite got corrupted.
*http://kb.mozillazine.org/Cookies
*https://support.mozilla.org/kb/Deleting+cookies

Help with understanding key event propagation

Hello,
I am hoping someone can help me understand a few things which are not clear to me with respect to handling of key events by Swing components. My understanding is summarized as:
(1) Components have 3 input maps which map keys to actions
one for when they are the focused component
one for when they are an ancestor of the focused component
one for when they are in the same window as the focused component
(2) Components have a single action map which contains actions to be fired by key events
(3) Key events go to the currently focused component
(4) Key events are consumed by the first matching action that is found
(5) Key events are sent up the containment hierarchy up to the window (in which case components with a matching mapping in the WHEN_IN_FOCUSED_WINDOW map are searched for)
(6) The first matching action handles the event which does not propagate further
I have a test class (source below) and I obtained the following console output:
Printing keyboard map for Cancel button
Level 0
Key: pressed C
Key: released SPACE
Key: pressed SPACE
Level 1
Key: pressed SPACE
Key: released SPACE
Printing keyboard map for Save button
Level 0
Key: pressed SPACE
Key: released SPACE
Level 1
Key: pressed SPACE
Key: released SPACE
Printing keyboard map for Main panel
Event: cancel // typed SPACE with Cancel button having focus
Event: save // typed SPACE with Save button having focus
Event: panel // typed 'C' with panel having focus
Event: panel // typed 'C' with Cancel button having focus
Event: panel // typed 'C' with Save button having focus
I do not understand the following aspects of its behaviour (tested on MacOSX although I believe the behaviour is not platform dependent):
(1) I assume that the actions are mapped to SPACE since the spacebar clicks the focused component but I don't explicitly set it?
(2) assuming (1) is as I described why are there two mappings, one for key pressed and one for key released yet the 'C' key action only has a key pressed set?
(3) assuming (1) and (2) are true then why don't I get the action fired twice when I typed the spacebar, once when I pressed SPACE and again when I released SPACE?
(4) I read that adding a dummy action with the value "none" (i.e. the action is the string 'none') should hide the underlying mappings for the given key, 'C' the my example so why when I focus the Cancel button and press the 'C' key do I get a console message from the underlying panel action (the last but one line in the output)?
Any help appreciated. The source is:
import javax.swing.*;
public class FocusTest extends JFrame {
     public FocusTest ()     {
          initComponents();
          setTitle ("FocusTest");
          setLocationRelativeTo (null);
          setSize(325, 160);
          setVisible (true);
     public static void main (String[] args) {
          new FocusTest();
private void initComponents()
     JPanel panTop = new JPanel();
          panTop.setBackground (java.awt.Color.RED);
JLabel lblBanner = new javax.swing.JLabel ("PROPERTY TABLE");
lblBanner.setFont(new java.awt.Font ("Lucida Grande", 1, 14));
lblBanner.setHorizontalAlignment (javax.swing.SwingConstants.CENTER);
          panTop.add (lblBanner);
          JPanel panMain = new JPanel ();
          JLabel lblKey = new JLabel ("Key:");
          lblKey.setFocusable (true);
          JLabel lblValue = new JLabel ("Value:");
JTextField tfKey = new JTextField(20);
JTextField tfValue = new JTextField(20);
JButton btnCancel = new JButton (createAction("cancel"));     // Add a cancel action.
JButton btnSave = new JButton (createAction("save"));          // Add a sve action.
          panMain.add (lblKey);
          panMain.add (tfKey);
          panMain.add (lblValue);
          panMain.add (tfValue);
          panMain.add (btnCancel);
          panMain.add (btnSave);
          add (panTop, java.awt.BorderLayout.NORTH);
          add (panMain, java.awt.BorderLayout.CENTER);
setDefaultCloseOperation (javax.swing.WindowConstants.EXIT_ON_CLOSE);
// Add an action to the panel for the C key.
          panMain.getInputMap (JComponent.WHEN_IN_FOCUSED_WINDOW).put (KeyStroke.getKeyStroke (java.awt.event.KeyEvent.VK_C, 0), "panel");
          panMain.getActionMap ().put ("panel", createAction("panel"));
          // FAILS ???
          // Add an empty action to the Cancel button to block the underlying panel C key action.
btnCancel.getInputMap().put (KeyStroke.getKeyStroke (java.awt.event.KeyEvent.VK_C, 0), "none");
// Print out the input map contents for the Cancel and Save buttons.
System.out.println ("\nPrinting keyboard map for Cancel button");
printInputMaps (btnCancel);
System.out.println ("\nPrinting keyboard map for Save button");
printInputMaps (btnSave);
          // FAILS NullPointer because the map contents are null ???
System.out.println ("\nPrinting keyboard map for Main panel");
// printInputMaps (panMain);
private AbstractAction createAction (final String actionName) {
     return new AbstractAction (actionName) {
          public void actionPerformed (java.awt.event.ActionEvent evt) {
               System.out.println ("Event: " + actionName);
private void printInputMaps (JComponent comp) {
     InputMap map = comp.getInputMap();
     printInputMap (map, 0);
private void printInputMap (InputMap map, int level) {
     System.out.println ("Level " + level);
     InputMap parent = map.getParent();
     Object[] keys = map.allKeys();
     for (Object key : keys) {
          if (key.equals (parent)) {
               continue;
          System.out.println ("Key: " + key);
     if (parent != null) {
          level++;
          printInputMap (parent, level);
Thanks,
Tim Mowlem

Use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the posted code retains its original formatting.
1) In the Metal LAF the space bar activates the button. In the Windows LAF the Enter key is used to activate the button. Therefore these bindings are added by the LAF.
2) The pressed binding paints the button in its pressed state. The released binding paint the button in its normal state. Thats why the LAF adds two bindings.
In your case you only added a single binding.
3) The ActionEvent is only fired when the key is released. Same as a mouse click. You can hold the mouse down as long as you want and the ActionEvent isn't generated until you release the mouse. In fact, if you move the mouse off of the button before releasing the button, the ActionEvent isn't even fired at all. The mouse pressed/released my be generated by the same component.
4) Read (or reread) the [url http://java.sun.com/docs/books/tutorial/uiswing/misc/keybinding.html#howto]How to Remove Key Bindings section. "none" is only used to override the default action of a component, it does not prevent the key stroke from being passed on to its parent.

Please help block my ipod touch second generation and forget the code, try putting the code so many times that now says connect to itunes, I connect but will not let me do anything that tells me this should unlock with key and I should do for Please help!

please helpme i block my ipod touch second generation and forget the code, try putting the code so many times that now says connect to itunes, I connect but will not let me do anything that tells me this should unlock with key and I should do for Please help!. thanks

Place the iPOd in recovery mode and then restore. For recovery mode:
iPhone and iPod touch: Unable to update or restore

I need help with Creating Key Pairs

Hello,
I need help with Creating Key Pairs, I generate key pais with aba provider, but the keys generated are not base 64.
the class is :
import java.io.*;
import java.math.BigInteger;
import java.security.*;
import java.security.spec.*;
import java.security.interfaces.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import au.net.aba.crypto.provider.ABAProvider;
class CreateKeyPairs {
private static KeyPair keyPair;
private static KeyPairGenerator pairGenerator;
private static PrivateKey privateKey;
private static PublicKey publicKey;
public static void main(String[] args) throws Exception {
if (args.length != 2) {
System.out.println("Usage: java CreateKeyParis public_key_file_name privete_key_file_name");
return;
createKeys();
saveKey(args[0],publicKey);
saveKey(args[1],privateKey);
private static void createKeys() throws Exception {
Security.addProvider(new ABAProvider());
pairGenerator = KeyPairGenerator.getInstance("RSA","ABA");
pairGenerator.initialize(1024, new SecureRandom());
keyPair = pairGenerator.generateKeyPair();
privateKey = keyPair.getPrivate();
publicKey = keyPair.getPublic();
private synchronized static void saveKey(String filename,PrivateKey key) throws Exception {
ObjectOutputStream out= new ObjectOutputStream(new FileOutputStream(filename));
out.writeObject(key);
out.close();
private synchronized static void saveKey(String filename,PublicKey key) throws Exception {
ObjectOutputStream out= new ObjectOutputStream( new FileOutputStream(filename));
out.writeObject(key);
out.close();
the public key is:
�� sr com.sun.rsajca.JSA_RSAPublicKeyrC�� xr com.sun.rsajca.JS_PublicKey~5< ~��% L thePublicKeyt Lcom/sun/rsasign/p;xpsr com.sun.rsasign.anm��9�[ [ at [B[ bq ~ xr com.sun.rsasign.p��(!g�� L at Ljava/lang/String;[ bt [Ljava/lang/String;xr com.sun.rsasign.c�"dyU�| xpt Javaur [Ljava.lang.String;��V��{G xp q ~ ur [B��T� xp ��ccR}o��[!#I��lo��
��^"`8�|��Z>��&
d ��"B��
^5��a��jw9��D��D�)�*3/h��7�|��I�d�$�4f�8_�|��yuq ~
How i can generated the key pairs in base 64 or binary????
Thanxs for help me
Luis Navarro Nu�ez
Santiago.
Chile.
South America.

I don't use ABA but BouncyCastle
this could help you :
try
java.security.Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
java.security.KeyPairGenerator kg = java.security.KeyPairGenerator.getInstance("RSA","BC");
java.security.KeyPair kp = kg.generateKeyPair();
java.security.Key pub = kp.getPublic();
java.security.Key pri = kp.getPrivate();
System.out.println("pub: " + pub);
System.out.println("pri: " + pri);
byte[] pub_e = pub.getEncoded();
byte[] pri_e = pri.getEncoded();
java.io.PrintWriter o;
java.io.DataInputStream i;
java.io.File f;
o = new java.io.PrintWriter(new java.io.FileOutputStream("d:/pub64"));
o.println(new sun.misc.BASE64Encoder().encode(pub_e));
o.close();
o = new java.io.PrintWriter(new java.io.FileOutputStream("d:/pri64"));
o.println(new sun.misc.BASE64Encoder().encode(pri_e));
o.close();
java.io.BufferedReader br = new java.io.BufferedReader(new java.io.FileReader("d:/pub64"));
StringBuffer keyBase64 = new StringBuffer();
String line = br.readLine ();
while(line != null)
keyBase64.append (line);
line = br.readLine ();
byte [] pubBytes = new sun.misc.BASE64Decoder().decodeBuffer(keyBase64.toString ());
br = new java.io.BufferedReader(new java.io.FileReader("d:/pri64"));
keyBase64 = new StringBuffer();
line = br.readLine ();
while(line != null)
keyBase64.append (line);
line = br.readLine ();
byte [] priBytes = new sun.misc.BASE64Decoder().decodeBuffer(keyBase64.toString ());
java.security.KeyFactory kf = java.security.KeyFactory.getInstance("RSA","BC");
java.security.Key pubKey = kf.generatePublic(new java.security.spec.X509EncodedKeySpec(pubBytes));
System.out.println("pub: " + pubKey);
java.security.Key priKey = kf.generatePrivate(new java.security.spec.PKCS8EncodedKeySpec(priBytes));
System.out.println("pri: " + priKey);
catch(Exception e)
e.printStackTrace ();
}

I need help with my mapping - CL_MAPPING_XMS_PLSRV3-ENTER_PLSRV

hi, guys, i need help with my mapping, i dont know this error (i not speak english)
<Trace level="1" type="B">CL_MAPPING_XMS_PLSRV3-ENTER_PLSRV</Trace>
<Trace level="2" type="T">......attachment XI_Context not found </Trace>
<Trace level="3" type="T">Mapping already defined in interface determination </Trace>
<Trace level="3" type="T">Object ID of Interface Mapping 4B903E2DDC853C1493E1DED5C5ED70A3 </Trace>
<Trace level="3" type="T">Version ID of Interface Mapping 88D96A70BAAE11DFAE5EE925C0A800C2 </Trace>
<Trace level="1" type="T">Mapping-Object-Id:4B903E2DDC853C1493E1DED5C5ED70A3 </Trace>
<Trace level="1" type="T">Mapping-SWCV:88D96A70BAAE11DFAE5EE925C0A800C2 </Trace>
<Trace level="1" type="T">Mapping-Step:1 </Trace>
<Trace level="1" type="T">Mapping-Type:JAVA_JDK </Trace>
<Trace level="1" type="T">Mapping-Program:com/sap/xi/tf/_mm_sgipi_fi001_vta_clientes_ </Trace>
<Trace level="3" type="T">MTOM Attachments Are Written to the Payload </Trace>
<Trace level="3" type="T">Dynamic Configuration Is Empty </Trace>
<Trace level="3" type="T">Executing multi-mapping </Trace>
<Trace level="1" type="E">CL_XMS_PLSRV_MAPPING~ENTER_PLSRV</Trace>
help me please

you can use the sharedobject to record a user/computer has taken your quiz, the session data and record their results. at the start of your quiz, check for the sharedobject and, if it exists, check the other data and take appropriate action.

Help with java mapping

PI File adapter has a processing option u2018Empty-Message Handlingu2019 to ignore or Write Empty Files. In case there is no data created after mapping on target side then this option determines whether to write an empty file or not. But there is a catch to this option when it comes to using it with File Content Conversion which is described in SAP Note u2018821267u2019. It states following:
I configure the receiver channel with File content conversion mode and I set the 'Empty Message Handling' option to ignore. Input payload to the receiver channel is generated out of mapping and it does not have any record sets. However, this payload has a root element. Why does file receiver create empty output file with zero byte size in the target directory? Example of such a payload generated from mapping is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<ns1:test xmlns:ns1="http://abcd.com/ab"></ns1:test>
solution :
If the message payload is empty (i.e., zero bytes in size), then File adapter's empty message handling feature does NOT write files into the target directory. On the other hand, if the payload is a valid XML document (as shown in example) that is generated from mapping with just a root element in it, the File Adapter does not treat it as an empty message and accordingly it writes to the target directory. To achieve your objective of not writing files (that have just a single root element) into the target directory, following could be done:
Using a Java or ABAP Mapping in order to restrict the creation of node itself during mapping. (This cannot be achieved via Message Mapping)
Using standard adapter modules to do content conversion first and then write file.
can someone help with java mapping that can be used in this case?

Hi,
 You have not mentioned the version of PI you are working in. In case you are working with PI 7.1 or above then here is the java mapping code you need to add after message mapping in the same interface mapping
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import com.sap.aii.mapping.api.AbstractTransformation;
import com.sap.aii.mapping.api.StreamTransformationException;
import com.sap.aii.mapping.api.TransformationInput;
import com.sap.aii.mapping.api.TransformationOutput;
public class RemoveRootNode extends AbstractTransformation{
 public void execute(InputStream in, OutputStream out)
 throws StreamTransformationException {
// TODO Auto-generated method stub
try
 DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
 DocumentBuilder builderel=factory.newDocumentBuilder();
 /*input document in form of XML*/
 Document docIn=builderel.parse(in);
 /*document after parsing*/
 Document docOut=builderel.newDocument();
 TransformerFactory tf=TransformerFactory.newInstance();
 Transformer transform=tf.newTransformer();
 if(docIn.getDocumentElement().hasChildNodes())
 docOut.appendChild(docOut.importNode(docIn.getDocumentElement(),true));
 transform.transform(new DOMSource(docOut), new StreamResult(out));
 else
 out.write(null);
catch(Exception e)
public void setParameter(Map arg0) {
// TODO Auto-generated method stub
public static void main(String[] args) {
// TODO Auto-generated method stub
try{
 RemoveRootNode genFormat=new RemoveRootNode();
 FileInputStream in=new FileInputStream("C:\\apps\\sdn\\rootNode.xml");
 FileOutputStream out=new FileOutputStream("C:\\apps\\sdn\\rootNode1.xml");
 genFormat.execute(in,out);
 catch(Exception e)
 e.printStackTrace();
public void transform(TransformationInput arg0, TransformationOutput arg1)
 throws StreamTransformationException {
 // TODO Auto-generated method stub
 this.execute(arg0.getInputPayload().getInputStream(), arg1.getOutputPayload().getOutputStream());
In case you are working in PI 7.0 you can use this code
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import com.sap.aii.mapping.api.StreamTransformation;
import com.sap.aii.mapping.api.StreamTransformationException;
public class RemoveRootNode implements StreamTransformation{
 public void execute(InputStream in, OutputStream out)
 throws StreamTransformationException {
// TODO Auto-generated method stub
try
 DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
 DocumentBuilder builderel=factory.newDocumentBuilder();
 /*input document in form of XML*/
 Document docIn=builderel.parse(in);
 /*document after parsing*/
 Document docOut=builderel.newDocument();
 TransformerFactory tf=TransformerFactory.newInstance();
 Transformer transform=tf.newTransformer();
 if(docIn.getDocumentElement().hasChildNodes())
 docOut.appendChild(docOut.importNode(docIn.getDocumentElement(),true));
 transform.transform(new DOMSource(docOut), new StreamResult(out));
 else
 out.write(null);
catch(Exception e)
public void setParameter(Map arg0) {
// TODO Auto-generated method stub
public static void main(String[] args) {
// TODO Auto-generated method stub
try{
 RemoveRootNode genFormat=new RemoveRootNode();
 FileInputStream in=new FileInputStream("C:\\apps\\sdn\\rootNode.xml");
 FileOutputStream out=new FileOutputStream("C:\\apps\\sdn\\rootNode1.xml");
 genFormat.execute(in,out);
 catch(Exception e)
 e.printStackTrace();
The code for PI 7.0 should also work for PI 7.1 provided you use the right jar files for compilation, but vice-versa is not true.
Could you please let us know if this code was useful to you or not?
Regards
Anupam
Edited by: anupamsap on Dec 15, 2011 9:43 AM

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