File in appending mode

hi all
when i try to write to a file i just have the last line added and the pervoiuse ones are overwritten
how can i keep everything added to the file appear??
what is the appending mode for the file to keep accumelating things rather than overwrite them??

ok here you are
     PrintWriter outT=
                    new PrintWriter(
                      new BufferedWriter(
                              new OutputStreamWriter(
                                      new FileOutputStream("D:/eng.txt"),
                                      enc)) );
           outT.close();
//These   appending mode
           outT = new PrintWriter(
                      new BufferedWriter(
                              new OutputStreamWriter(
                                      new FileOutputStream("D:/eng.txt",true),
                                      enc)) );maybe the problem is with the menu?? cos each time i use getSelectedText() and then i add the selected text to the file and after another select also i want to keep it in the same file
so select add then select add and so on but each time i just have the last choosen text
what is your suggestion now????

Similar Messages

Creating a file in append mode

Hi All,
I have a requirement where in i need to create a flat file in append mode . The requirement is as follows :
- In a week , SAP sends certain number of IDOCs to XI . For the first IDOC that comes in ,XI has create a file and later for the rest of the IDOCs ,XI just has to append the file contents .
- During the End of the week , the target system picks this file for processing.
My file structure is as follows:
Header
seg1
seg2
seg2
seg3
seg3
seg1
seg2
seg2
seg3
seg3
Trailer.
So ,while creating a file in append mode , is there any way apart from creating one more interface to pick the finally created file , i can make sure that the file gets written in the above format without header and trailer getting repeated.
Regards
Vinay P.

Hi, Vinay
If you don't want to use a new interface, you can use a operating system command in your target communication channel..
The OS script must:
pick up only one header line and move it to a temporal file. For example, with UNIX command you can do that with
grep "criteria" file | head -1 > temporal_file
pick up each detail line and move it to the temporal file.
pick up only the last trailer line and move it to the temporal file
Rename temporal file to final flat file.
Regards,
Carme.

Creating file in append mode

Hi All,
I have below problem, please let me know your views.
I have requirement to trigger huge data using proxy from ECC and create a single file out of it on file server. Since the data is huge, in order to avoid performance issues, I am planning to trigger multiple message from ECC to XI. Say after every 2000 records are processed, proxy message will be triggered to XI and the program will continue execution.
Now my problem is on the receiver side I need a single file to be created out of all the messages triggered from ECC during a single run. This i think can be done using File adapter in "Append" mode.
However the problem is, data will contain 1 Header record and multiple Item records. In append mode the Header record will be appended multiple times in the file which is not desirable.
Is there any way to avoid this?
Is there any other approach that is feasible in this case where in I need to extract large data from ECC using proxy program and write it to a single file?
Thanks for your help.
Anand

Hi Anand,
I also faced this requirement and solved successfullyby using CREATEIF node function. Please follow below approach...
So your proxy will send several files which you need to create as single file at receiver side. First file only has to create with header. So for this The proxy data which is coming first time should have header data, now compare in mapping whether header data coming in sender proxy data or not. If Header data coming then by using CREATEIF node function, create the target header structure in mapping(target header structure should have 0..1 occurance). If header data is not coming in sender proxy(this is not first proxy execution as it is not having header data) CREATEIF node function doesnt create the target header structure.
In receiver file adapter select append mode so that first time file will create with header as CREATEIF node function create the target structure and for the next executions of proxy it will create only data records.
thanks,
madhu

Open file in append mode

I am using JSR-75 for file IO. How can i open a file for writing in append mode?

Don't create multple threads on the same topic:
http://forum.java.sun.com/thread.jsp?forum=31&thread=505132&tstart=0&trange=30
Now people don't know which thread is the active thread or which one they should respond to.

Receiver File adapter Append Mode

Hi
I have scenario where i am sending multiple idocs to file ...when i putting the file construction mode to append i can put multiple idoc in to file but i wanna do it on daily basis Means i wanna send the newly crated or changed Idoc on a daily basis to a single file ..
How can i achieve that
SV

Hi
You can achieve this using dynamic file names.
Every day different files
FileName-<DD>-<MMM>
chk these
/people/michal.krawczyk2/blog/2005/11/10/xi-the-same-filename-from-a-sender-to-a-receiver-file-adapter--sp14
/people/sameer.shadab/blog/2005/09/23/an-interesting-usage-of-variable-substitution-in-xi
/people/sravya.talanki2/blog/2005/08/11/solution-to-the-problem-encountered-using-variable-substitution-with-xi-sp12
rgds
Arun

Open file in append mode in JSP

Hi;
I am using the java.io.* import attribute in my jsp page and I can write to a txt file, bvut it overwrites on the older file. How do I append to the file, here is my code
import="java.io.*" %>
<%
File fileObject = new File("C:/db/data.txt");
fileObject.createNewFile();
FileOutputStream fileStream = new FileOutputStream(fileObject);
DataOutputStream dataStream = new DataOutputStream(fileStream);
dataStream.writeChars("Line one\n\r");
dataStream.writeChars("Line two\n\r");
dataStream.close();
out.print("The new file has been created <br>");
%>
</body>
Appreciate help!!! Thanks
lakshmi

Go and read the API for java.io
Use the alternate constructor, which takes a boolean parameter, saying whether to append to the file.
ie
new FileOutputStream(fileObject, true);
If you are writing a text file, you might consider using a FileWriter rather than a FileOutputStream.
Cheers,
evnafets

Corrupt file error while writting a file in compress mode

Hello,
I have a scenario where i am writting data in a file in appending mode with filter 'compress' addition using open dataset, on Al11 for the first set of records it works fine but if this file is accessed again for writting data in next select statement ( its between select endselect),the file is getting corrupted, if i try to open this file corrupt file error come. can someone help.
Thanks and Regards,
Gunjan

Hi Gunjan,
Unfortunately, you can't do in that way. The behaviour of that OPEN and FILTER 'compress' clause is to create a compacted file, to be read later, but it can be appended... all your writes go to a pipe and when you close the file this is sent to 'compress' program or other filter and than a compacted file is created.
You can't go back and start inserting again after close it.
Follow documentation:
http://help.sap.com/abapdocu_70/en/ABAPOPEN_DATASET_OS_ADDITION.htm
The addition FILTER must not be used together with the addition AT POSITION or for the access type FOR UPDATE.
Regards, Fernando Da Ró

File Adapter Append issue

Hi Iam trying to write a write a file in append mode using a file adapter(on a file which already exits)...but it says...file already exists...What might be the issue...?
Thanks in advance!
Larry

Hi Guys,
I shall explain the issue Iam having...Iam using the File Content Parameters..and the output is a plaint text file(Flat File).We are using Dynamic file configuration to populate the file name as per our requirements.When I dont use the dynamic config...(giving the name in the communication channel) the file is created @ the first time and its getting appended the next time..But when I use the Dynamic Configuration the file is not getting appended and it leaves an error saying the file is already there and cannot be overwritten...
Please advise!
Thanks in advance!

Problem with Append mode in File Receiver

Hello,
I am facing some problem with Append Mode in File Receiver.
In channel config, i have given :
Construction Mode : Append
File Type : Text
Message Protocol : File Content Conversion
The size of the file which i am trying to send is about 9.5MB.
I got this error,
"Recovering from loss of connection to database; message
loaded into queue by recover job: System Job (Failover Recovery)".
So, it would seem that there was a loss of connnection to the database
while the file was being written.
Note - XI successfully recovered from the connection loss and
successfully wrote the file, however since the communication channel
was set to append, it appended to the partial file that was written
before the database connection loss. This is not correct. The file
should have been overwritten after the recovery even though the communication
channel was configured to append.
Can anyone help me on this regard.
Thanks,
Soorya.

Hi Venkat,
I would suggest u to split the file in to chunks if u face any problem in processing at a time in append mode and also
Memory Requirements are must 4 processing huge files:
Q: Which memory requirements does the File Adapter have? Is there a restriction on the maximum file size it can process?
A: The maximum file size that can be processed by the File Adapter depends on a number of factors:
o The most important one is the size of the Java heap, which is shared among all messages processed at a certain point in time. In order to be able to process larger messages without an out of memory error (OOM), it is recommended to increase the size of the available Java heap and/or to reduce the concurrency in the system so that fewer messages are processed in parallel.
o Another factor negatively influencing the maximum message size in releases up to and including XI 3.0 SP 13 is an enabled charcter set (encoding) conversion if the message type is set to "Text".
o Using the transport protocol "File Transfer Protocol (FTP)" also uses more memory for processing than the transport protocol "File System (NFS)" (up to and including XI 3.0 SP 13).
o If the Message Protocol "File Content Conversion" is used in a File Sender channel, consider that not only the size of the input file affects the File Adapter's memory usage, but even more the size of the XML resulting from the conversion, which is usually a few factors larger than the original plain text file.
To reduce the memory consumption in this scenario, consider configuring the setting "Maximum Recordsets per Message" for the sender channel. This will cause the input file to be split into multiple smaller mesages.
Plz do refer the following links:
U may plan the availability of ur communication channel using "Planning Availability Times" feature
http://help.sap.com/saphelp_nw04/helpdata/en/45/06bd029da31122e10000000a11466f/frameset.htm
/people/sravya.talanki2/blog/2005/11/29/night-mare-processing-huge-files-in-sap-xi
hi check the below links for reference
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10748ef7-b2f0-2910-7cb8-c81e7f284af5
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/7086f109-aaa7-2a10-0cb5-f69bd2affd2b
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2498bf90-0201-0010-4884-83568752a857
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cc1ec146-0a01-0010-90a9-b1df1d2f346f
Regards,
Vinod.

About "Append mode" of cs6, cc & cc2014 project file in order to insert xml sequence which is sent from 3rd-party tool

let me ask you all something about “Append mode” of cs6, cc & cc2014 project file in order to insert multiple xml sequence which is sent from 3rd-party tool into specific project file .
Finalcut pro 7 & x was supported this , but i am not sure will support this on cs6, cc & cc2014 .
is this possible ??
could someone let me know about this - append mode possible or not ??

let me ask you all something about “Append mode” of cs6, cc & cc2014 project file in order to insert multiple xml sequence which is sent from 3rd-party tool into specific project file .
Finalcut pro 7 & x was supported this , but i am not sure will support this on cs6, cc & cc2014 .
is this possible ??
could someone let me know about this - append mode possible or not ??

Error in Seeburger SFTP receiver in append mode.

Hi,
I am trying to do content conversion in Seeburger SFTP adapter at the receiver side and was successfully able to create the first CSV record.
I am using append mode in receiver adapter.
But when sent another record from sender; I got below error.
Always, first record gets processed successfully then second and subsequent records always fails.
Message processing failed. Cause: javax.resource.ResourceException: Fatal exception: com.sap.aii.af.ra.cci.XIRecoverableException: >> Description: putFile: Target filename <out.txt>; Flags set: appending=<true>; ; Reason: Failed to convert Ace to the native form.>> Details: putFile: Target filename <out.txt>; Flags set: appending=<true>; ; Reason: Failed to convert Ace to the native form.>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMPONENT_ERROR>>Retryable: true>>Fatal: true, >> Description: putFile: Target filename <out.txt>; Flags set: appending=<true>; ; Reason: Failed to convert Ace to the native form.>> Details: putFile: Target filename <out.txt>; Flags set: appending=<true>; ; Reason: Failed to convert Ace to the native form.>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMPONENT_ERROR>>Retryable: true>>Fatal: true
Regards,
Anirudh.

An update.
Error message "Unable to convert ACE to native format" means it is not able to convert A SCII C ompatible E ncoding to the native encoding which is used in file system.
I am unable to make head or tail of it... I am doing content conversion in adapter module tab and have specified Transform.ContentType = text/plain;charset=utf-8
The file which gets generated is of ANSI encoding and doesn't appear to be a problem as it works when the file gets generated for the first time.
Also, it works OK when I use unique file name in receiver adatper where 1 file for each record is generated.
The problem is only in append mode.
When checked in Seeburger RWB, there was inconsistency in file details for messages.
For the successful message, file details were:
File details
Host LTFBG-ANIRUD-PI.com
Path /out
File name OUT.CSV
Remote file name OUT.CSV
Detailed status description PUT command for file <OUT.CSV> has been performed successfully.
whereas, for failed messages it was:
File details
Host LTFBG-ANIRUD-PI.com
Path /out
File name null
Remote file name null
Detailed status description Error on send, will be retried
Could that be product error?
Has anyone faced this problem before?
regards,
Anirudh.
Edited by: Anirudh Vyas on Apr 10, 2009 8:31 PM
Edited by: Anirudh Vyas on Apr 10, 2009 8:45 PM

Join / Merge 2 XLS file in XSTRING Mode

Hello,
I have a XLS file in MIME Repository. What I need to do is, to read the XLS file and then append more data in my program and download it.
Steps i have tried:
1. Reading XLS from MIME
    l_mr = cl_mime_repository_api=>get_api( ).
    l_mr->get( EXPORTING i_url     = 'sap/bw/Test.xls'
               IMPORTING e_content = l_content ).
2.1 Merge / Join / Concatenate L_XSTR to l_content
CONCATENATE l_xstr l_content INTO l_content in BYTE MODE.
2.2 Tried to replace certain known BYTES in the XLS
REPLACE FIRST OCCURRENCE OF l_xstr in l_content WITH l_xstr1 in BYTE MODE.
But either way i'm unable to achieve my requirement.
Kindly let me know if anyone can done of joining the data of 2 XLS files in XSTRING mode.
Thanks.
Regards,
Chathia.

Hi Sandra,
I understood your point. Please find my reply to your options below.
1) Using OLE, GUI must be connected when you run the program, i.e. in dialog. It seems that it's what you have done, there's no reason it can't work.
          --- Since I use web based app using Web Dynpro, OLE didnt work. However there is a option to integrate MS Apps but it cannot solve because I have huge volume of data to download (55000 records with 120 columns)
2) Using an XML format, it's easy to replace nodes. Note that Microsoft has provided an XML format with Excel 2003, which is not the same as the XSLX format with Excel 2007.
          --- Really I do not need to join or replace data between 2 XLS. I dont think formatting in XML is possible.
I have downloaded the data successfully in one XLS (Eg. DATA_XLS - 55000records with 120columns). But I need to do formatting in the downloaded DATA_XLS (55000 records). I can provide the users with a custom Excel file which contains the VBA code and it will format the downloaded DATA_XLS, which is quick. But I want this process to be synchronised and if possible to be automated. So I uploaded the VBA_XLS to the Mime repository and provided a Button in web dynpro to download after the DATA_XLS is downloaded successfully. Since this is two different activities, users need to click on this manually after DATA_XLS is downloaded.
I would like to know if I can combine this together through some options, so tried the Byte replacement option.
To be more clear:
      (1) VBA_XLS with only VBA Code (No data present, STRING conversion is not working)
      (2) DATA_XLS with huge volume of data
If possible I need to combine both and more importantly the VBA code should work after download.
Could you please explain?
Regards,
Chathia.

File is appending instead of overwrite.

Hi
We have a file interface with overwrite settings. When tested from ECC the file is being overwritten as per the settings. When retested the same, the file is being appending data. The same is also tested from another Quality system and there also it is working fine.
Would like to know any specific reason for this behaviour and any solution for the same??
Parameters
Adapater: File
Transport Protocol: File System(NFS)
Message Protocol: File Content Conversion
Adapter Engine;Integration Server
Processing Parameters
File Construction Mode: Create
Overwrite Existing file : Ticked
Write Mode; Directly
Empty-Message Handling - Write Emplty File
Maximum Concurrency; 1
File Type: Binary
Regards
Ram

Hi Ram,
We had faced a similar issue.
Just try changing from Create to append mode and then back to create and then reactivate and chk
Also chk if the cache notificatiosn are fine after doing this

Is write mode faster than append mode?

Hi All,
I have to write some data after selecting from a table. I have to call six procedure to write data. Each of the procedure writes around 100-150MB data.
If I generate six files in write mode it takes around 11 minutes. (using utl_file.fopen('/tmp','csv','w');)
but if i generate 1 file (combining all) using (using utl_file.fopen('/tmp','csv','a');) It has passed 55 minutes an size of file is still around 500 MB and still growing.
Can anyone explain why append is so slow comapred to write ? or there is any other reason .. note that we have lot of space on server.
Regards,
Amit

What you've written does not compute.
On my laptop I can write that much data far faster than what you've indicated you are seeing.
What version number?
How is the data being selected?
How much time does the SELECT take without the WRITE?
When I have large amounts of data to write my method of choice is to concatenate them into a CLOB and then write it out using DBMS_ADVISOR.CREATE_FILE
http://www.morganslibrary.org/reference/dbms_advisor.html

Adobe media server record&append mode problem

Hi,I have seted up an http live streaming with adobe media server 5 and for client I use osmf player!
I use the append mode so I do not need to clean the files from livepkgr application every time I stop and restart the stream! But I have noticed that when I stop streaming and trying to play the stream,I can play only the last two seconds of my stream.
How can I do it when I stop streaming when I'm accessing back the player to play all the last recorded stream? I have seted the application like that :
SagementDuration : 4000
FragementDuration: 4000
Diskmanagement : 3
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I'm having this issue as well. Did you ever find a solution to it?

File in appending mode

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