Read/write operation on SAP IDOC file

Hi All,
We are developing an application, which will be used for registering and processing of travel data for a client.One of itu2019s functionality is to get the data from external system in different format(like CSV, Excel, Fixed Flat file, XML, main frame file, DBF and SAP IDOC) and import it into Oracle databases.
One of the design considerations for it, is to read these files and convert it into predefined XML format
and then import these data from XML to oracle database.
Currently we are analyzing the requirement and trying to find out all the Open Source JAVA API which can convert these different format files to predefined XML format, using some mapping file.
We have found out Open Source JAVA API for all the file format, except SAP IDOC files.
Any Java API to read/write the SAP IDOC file, Please advise
Regards,
Madhu
Edited by: Madhu Sudhan on Feb 17, 2009 12:06 PM

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NFC tags read/write operations on low level

Hi,
I know this is little bit offtopic question - but since you are experts in the area I will try to ask you probably a pretty simple question:
1/ I would like to know which protocol is used for the read/write operations to the NFC tags are used. According to my understanding after the tag is placed on the NFC reader (NFC phone, USB reader), it is powered and set to the ready state. Then the application protocol for read/write operation is used. As I think the exact format and the content of commands used for read/write is not specified in ISO 14443 and it is dependent on a tag hardware/manufacturer and will be different for FeliCa/Mifare/Innovision/etc. tags, so there is no way how to handle NFC tags read/write operations with the single implementation. Is that assumption correct?
2/ Are there any tags, which supports the APDU 7816-4 commands for read/write operations?
Thank you for reply
Kind regards,
STeN

hello,
you have to read the NFC forum specs. all of this will be better explained than by me.
more than one protocol are used according the the contactless front end configuration and abilities. It includes ISO14443-A, ISO14443-B and Felica. Sometimes other protocols are also available, for example Innovatron (not Innovision lol)
Mifare is not a protocol, it is a line of NXP products. These products use the lower layers of the ISO14443-A protocol specification.
There are 4 types of tags
1) using the lower layers of ISO14443-A
2) using the lower layers of ISO14443-B
3) something related to felica?
not sure exactly about these 3, you have to read the specs. Everything is clearly understandable, not like ETSI.
4) something using ISO7816-4 commands on top of ISO14443 A or B or others. You have SELECT, READ BINARY, UPDATE BINARY. You can implement that using javacard, I did it and it works. You need two binary files, that can be hardcoded.
Regards
Sebastien

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I am experiencing the same problem. Our program periodically monitors data and eventually save it for post-processing. While it's searching for suitable data, it creates one file for every channel (32 in total) and starts streaming data to these files. If it finds data is not suitable, it deletes the files and creates new ones.
On our lab, we tested the program on windows and then on RT and we did not find any problems.
Unfortunately when it was time to install the PXI on field (an electromechanic shovel on a copper mine) and test it, we've come to find that saving was taking to long and the program screwed up. Specifically when creating files (I.E. "New File" function). It could take 5 or more seconds to create a single file.
As you can see, field startup failed and we will have to modify our programs to workaround this problem and return next week to try again, with the additional time and cost involved. Not to talk about the bad image we are giving to our costumer.
I really like labview, but I am particularly upset beacuse of this problem. LV RT is supposed to run as if it was LV win32, with the obvious and expected differences, but a developer can not expect things like this to happen. I remember a few months ago I had another problem: on RT Time/Date function gives a wrong value as your program runs, when using timed loops. Can you expect something like that when evaluating your development platform? Fortunately, we found the problem before giving the system to our costumer and there was a relatively easy workaround. Unfortunately, now we had to hit the wall to find the problem.
On this particular problem I also found that it gets worse when there are more files on the directory. Create a new dir every N hours? I really think that's not a solution. I would not expect this answer from NI.
I would really appreciate someone from NI to give us a technical explanation about why this problem happens and not just "trial and error" "solutions".
By the way, we are using a PXI RT controller with the solid-state drive option.
Thank you.
Daniel R.
Message Edited by Daniel_Chile on 06-29-2006 03:05 PM

Oracle coherence first read/write operation take more time

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In which case, why bother using Coherence? You're not really gaining anything, are you?
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If you wander over to a few of the CUG presentations and attend a few CUG meetings, one of the first things the support guys will tell you is "benchmark on a proper cluster" and not "on a localised development machine". Why? Because the difference in scalability and performance will be huge. I'm not really trying to deter you from Coherence, but I don't think it's going to meet you requirements when fully configured in a cluster of "1 Micro seconds for 100000 data collection" on a continuous basis.
Just my two cents.
Cheers,
Steve
NB. I don't work for Oracle, so maybe they have a different opinion. :)

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Environment: Forms 9i (Web)
As : Oracle 9i As
How can read/write FORMSWEB.CFG & DEFAULT.ENV file entries programatically?

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Hello Experts,
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Abhishek

hi,
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greetings,
dsp

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That's a great help! Thanks. I have made the changes to the supplied NI VIs so that any rate can be used. The new read/write VIs are attached and seem to work ok.
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F
Attachments:
Snd_Read_Wave_File.vi ‏128 KB
Snd_Write_Wave_File.vi ‏110 KB

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Unexpected results
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Questions
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Is SV I/O asynchronous by design?
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BillMe wrote:
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Hello everybody.
Oracle 11G R 2 on Linux.
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I think that you dont understand the problem.
The problem is easy, I have a table with 270.000.000 records. When you try to do anything with this table the database go slow, for your understand, when you ask a simple and easy query, by example a select count(*) from, it take more than 200 seconds to answer.
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All you said is 'try to do anything with this table the database go slow' but you don't tell us what that 'anything' is. You give only ONE example.
A COUNT(*) in Oracle could possibly use an index but you don't tell us if you have any indexes. You don't even provide the table DDL so we can see the structure.
Your description gives the impression that all you have is a table with ONE column defined as BINARY FLOAT and that column is defined as NOT NULL. If that is the case you can create an index and Oracle can use it to get the COUNT(*) results.
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MichelC.

Michel,
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Zvezdana S.
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NOTE: A correct answer to this question will receive the rarely used OTN 25pt Platinum Star ★ *
Essbase 9.3.1
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>
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Regards,
Robb Salzmann
* right after the platinum star award is created

Hi Robb,
Never heard of the OTN 25pt Platinum Star award... It sounds appetizing, but I know I won't get it since I've got no Java experience. :)
I was just gonna ask if you've thought about posting the same question on one of the Java forums?
https://forums.oracle.com/forums/category.jspa?categoryID=285
Cheers,
Mehmet

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Read/write operation on SAP IDOC file

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