Extracting Permissions from database in JAAS

I am working on enterprise application where we want to implement JAAS and extract the permissions and roles from the data base but not from the policy file.Can any body post me the solution.

Hi, raghave66!
You should read the documents below.
http://java.sun.com/j2se/1.4/docs/guide/security/PolicyFiles.html
You'll have to create your own Policy Class instead of
using default com.sun.security.auth.PolicyFile.class
regards,
kt

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Extract data from database tables and download in pdf and csv

extract data from database tables and download in pdf and csv
hi how can i re-write my old form procedure in adf java. the procedure used to extract data from diffirent table and dowload the data in pdf and csv.am not downloading image, i what to extract data from diffirent tables in my database and download that data in pdf and csv. i would like to write this in java adf.i just what direction am not asking anyone to do my work this is my learning curve
the form code is
function merge_header3 return varchar2 is
begin
     return '~FACILITY DESCRIPTION~ACCOUNT NO~BRANCH CODE~BANK REF NO.~P/P/ AMOUNT~Postal Address 1~Postal Address 2~Box Postal Code~Dep. Date~Month~BANK NAME~BRANCH NAME~ACCOUNT TYPE~DESCRIPTION~OBJECTIVE DESCRIPTION';
end;
procedure download_file (i_pbat integer) is
dir varchar2(80);
file_name1 varchar2(80);
file_name2 varchar2(80);
appl_code varchar2(80);
fil1 client_text_io.file_type;
fil2 client_text_io.file_type;
dat varchar2(1000);
DATA VARCHAR2(1000);
bvspro varchar2(100);
ssch   varchar2(100);
bvspro_total number(20,2);
ssch_total   number(20,2);
grand_total number(20,2);
cnt    integer;
cursor pbat is
     select *
     from sms_payment_batches
     where id = i_pbat
cursor pay (pb_id integer) is
     select *
     from sms_payment_vw
     where pbat_id = pb_id
     order by subsidy ASC,programme,beneficiary_name
cursor cgref (low varchar2) is
     select *
     from cg_ref_codes
     where rv_domain ='SMS'
     and rv_low_value = low
success boolean;
begin
     set_application_property(cursor_style,'busy');
     appl_code := sms_global.ref_code('SMS','APP_CODE','SMS',0);
    dir       := sms_global.ref_code('SMS','PAY_DIR','c:\sms\batch_payments',0);
         success := webutil_file.create_directory(dir);
     if webutil_file.file_is_directory(dir) then
         null;
--         message ('directory exists');
    else
--                  message ('create directory ');
         success := webutil_file.create_directory(dir);
--         if success then        message ('directory exists');    end if;
    end if;
    for c_pbat in pbat loop
         file_name1 := dir ||'\' || appl_code||c_pbat.batch_number||'-'||to_char(c_pbat.batch_dt,'yyyymmdd')||'pay.txt';
         file_name2 := dir ||'\' || appl_code||c_pbat.batch_number||'-'||to_char(c_pbat.batch_dt,'yyyymmdd')||'merge.txt';
--message('create files ');
--         fil1 := client_text_io.fopen (file_name1,'W');
--         fil2 := client_text_io.fopen (file_name2,'W');
    fil1 := client_text_io.fopen (file_name1,'W','');
    fil2 := client_text_io.fopen (file_name2,'W','');
               dat :=                       'FROM ACCOUNT NUMBER'
                                                            ||'~'||'FROM ACCOUNT DESCRIPTION'
                                                            ||'~'||'MY STATEMENT DESCRIPTION'
                                                            ||'~'||'BENEFICIARY ACCOUNT NUMBER'
                                                            ||'~'||'BENEFICIARY SUB ACCOUNT NUMBER'
                                                            ||'~'||'BENEFICIARY BRANCH CODE'
                                                            ||'~'||'BENEFICIARY NAME'
                                                            ||'~'||'BENEFICIARY STATEMENT DESCRIPTION'
                                                            ||'~'||'AMOUNT';
         --     client_text_io.put_line(fil1,dat);
         bvspro:= null;
         ssch := null;
         cnt := 0;
         dat := '~'||lpad('~',16,'~');
         for c_pay in pay(c_pbat.id) loop
--message('cpay loop ' || cnt);
           if bvspro is null then
                 dat := lpad('~',16,'~');
                 dat := utility.put_field(1,c_pay.programme,dat,'~');
           client_text_io.put_line(fil2,dat);
           dat := utility.put_field(1,c_pay.subsidy,dat,'~');
           client_text_io.put_line(fil2,dat);
           dat := merge_header3;
                 client_text_io.put_line(fil2,dat);
                 bvspro := c_pay.programme;
                 ssch := c_pay.subsidy;
                 grand_total := 0;
                 bvspro_total := 0;
                 ssch_total := 0;
           end if;
           if bvspro <> c_pay.programme then
                 dat := lpad('~',16,'~');
                 dat := utility.put_field(5,ssch_total,dat,'~');
                 dat := lpad('~',16,'~');
                 dat := utility.put_field(5,bvspro_total,dat,'~');
           dat := utility.put_field(1,'Total:' || bvspro,dat,'~');
                 client_text_io.put_line(fil2,dat);
                 dat := lpad('~',16,'~');
           client_text_io.put_line(fil2,dat);
                 dat := utility.put_field(1,c_pay.programme,dat,'~');
           client_text_io.put_line(fil2,dat);
                 bvspro := c_pay.programme;
           dat := utility.put_field(1,c_pay.subsidy,dat,'~');
           client_text_io.put_line(fil2,dat);
           dat := merge_header3;
                 client_text_io.put_line(fil2,dat);
                 bvspro := c_pay.programme;
                 ssch := c_pay.subsidy;
                 bvspro_total := 0;
                 ssch_total := 0;
                 cnt :=0;
         end if;
           if ssch <> c_pay.subsidy then
                 dat := lpad('~',16,'~');
                 dat := utility.put_field(5,ssch_total,dat,'~');
                 dat := lpad('~',16,'~');
           client_text_io.put_line(fil2,dat);
           dat := utility.put_field(1,c_pay.subsidy,dat,'~');
           client_text_io.put_line(fil2,dat);
           dat := merge_header3;
                 client_text_io.put_line(fil2,dat);
                 ssch := c_pay.subsidy;
                 ssch_total := 0;
                 cnt :=0;
         end if;
        bvspro_total := bvspro_total + c_pay.amount;
        ssch_total   := ssch_total   + c_pay.amount;
              grand_total := grand_total + c_pay.amount;
        cnt := cnt +1;
--message('bfore write file 2 ' );
        client_text_io.put_line(fil2
                               ,cnt
                        ||'~'|| c_pay.beneficiary_name
                                                            ||'~'||c_pay.BENEFICIARY_ACCOUNT_NUMBER ||''
                                                            ||'~'||c_pay.BRANCH_CODE             ||''
                                                            ||'~'|| c_pay.BENEFICIARY_STATEMENT_DESC
                                                            ||'~'|| c_pay.AMOUNT
                        ||'~'|| c_pay.address_line1
                        ||'~'|| c_pay.address_line2
                                                ||'~'|| c_pay.postal_code
                                                ||'~'|| TO_CHAR(c_pay.deposit_date,'DD-Mon-YYYY')
                                                ||'~'|| c_pay.month
                                                ||'~'|| c_pay.bank
                                                ||'~'|| c_pay.bank_branch
                                                ||'~'|| c_pay.account_type
                                                ||'~'|| c_pay.subsidy
                                                ||'~'|| c_pay.programme)
              DATA :=                                  c_pay.FROM_ACCOUNT_NUMBER
                                                            ||'~'||c_pay.FROM_ACCOUNT_DESCR
                                                            ||'~'||c_pay.MY_STATEMENT_DESCR
                                                            ||'~'||c_pay.BENEFICIARY_ACCOUNT_NUMBER
                                                            ||'~'
                                                            ||'~'||c_pay.BRANCH_CODE
                                                            ||'~'||c_pay.BENEFICIARY_NAME
                                                            ||'~'||c_pay.BENEFICIARY_STATEMENT_DESC
                                                            ||'~'||c_pay.AMOUNT;
        DATA := REPLACE(DATA, ',' , ' ' );
        DATA := REPLACE(DATA, '~' , ',' );
--message (cnt ||' ' || data);
--message('bfore write file 1 ' );
              client_text_io.put_line(fil1, data);
         end loop;
--message ('end of write');
             dat := lpad('~',16,'~');
             dat := utility.put_field(6,ssch_total,dat,'~');
             dat := lpad('~',16,'~');
       dat := utility.put_field(1,'Total:' || bvspro,dat,'~');
             dat := utility.put_field(5,bvspro_total,dat,'~');
          client_text_io.put_line(fil2,dat);
          dat := lpad('~',16,'~');
       client_text_io.put_line(fil2,dat);
       dat := utility.put_field(1,'Grand Total:' ,dat,'~');
             dat := utility.put_field(5,grand_total,dat,'~');
          client_text_io.put_line(fil2,dat);
         -- close file
for i in 1..50 loop
       if substr(i,-1) = 0 then
             message ('flush ' || i);
       end if;
              client_text_io.put_line(fil1, lpad(' ',2000));
              client_text_io.put_line(fil2, lpad(' ',2000));
              client_text_io.put_line(fil1, lpad(' ',2000));
              client_text_io.put_line(fil2, lpad(' ',2000));
end loop;
         client_text_io.fclose(fil1);
         client_text_io.fclose(fil2);
    end loop;
   set_application_property(cursor_style,'default');
    exception
         when others then
              message(sqlcode ||' ' ||sqlerrm);
   end download_file;    i try this but this code onlydownload image not data from database tables
    public void downloadImage(FacesContext facesContext, OutputStream outputStream)
        BindingContainer bindings = BindingContext.getCurrent().getCurrentBindingsEntry();
        // get an ADF attributevalue from the ADF page definitions
        AttributeBinding attr = (AttributeBinding) bindings.getControlBinding("DocumentImage");
        if (attr == null)
            return;
        // the value is a BlobDomain data type
        BlobDomain blob = (BlobDomain) attr.getInputValue();
        try
        {   // copy the data from the BlobDomain to the output stream
            IOUtils.copy(blob.getInputStream(), outputStream);
            // cloase the blob to release the recources
            blob.closeInputStream();
            // flush the output stream
            outputStream.flush();
        catch (IOException e)
            // handle errors
            e.printStackTrace();
            FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_ERROR, e.getMessage(), "");
            FacesContext.getCurrentInstance().addMessage(null, msg);
        }

You should ask your forum in the ADF-forum.

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THX

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Hi Tippu,
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Edited by: Balu CH on Oct 21, 2008 11:13 PM

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<column columnName="DEPTNO" columnType="NUMBER">30</column>
</row>
</table>
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I would like to start a discussion on extracting image (binary data) from a relational database. Although some might say that extracting image from directories is a better approach, I m still sceptic on that implementation.
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2. High level of security - can anyone tell me how easy it is to hack into a database server?
3. image is not dependent on file structure - no more worries about broken links because some one might mistakenly change the directory structure. If there needs to be a change, it will be handle efficiently by the database server.
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2. How is this approach (taking image from directory) scalable if there is thousands of images and text that needs to be served?
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Regards
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Databases are typically more oriented towards text and number content than binary content, I believe. If you carry images in the database you will need to run them through your code and through your java server before they are displayed. If they are held in a directory they will be called from hrefs in the produced page, which means that they are served by your static server. This is quicker because no processing of the image is required. It also means the Database has to handle massively less data. Depending on the database this should be far quicker to query.
It is worth noting that it is also quite difficult to actually change mime-types on a page to display a picture in the midst of HTML- the number of enquiries on these pages about this topic should be enough to illustrate this.
If you give over controls of all the image file handling to your java system (which I do when I write sites like the one you describe) then the actual program knows where to put the images and automatically adds them to the database. The system administrator never needs to touch them. If they want a backup they save the database and the website directory. The second of those should be a standard administrative task anyway, so there is not a huge difference there. The danger of someone accidentally changing the directory structure is no greater than the danger of someone accidentally dropping a database table- it can be minimised by making sure your administrators are competent. Directory structures can be changed back, dropped tables are gone.
The security claim is slightly negated because you still have to run a webserver. Every program you run on your server is vulnerable to attack but if you are serving web pages you will have a server program that is faster than a database for image handling. You are far more at risk from running FTP or Telnet on your server or (worst of all) trying to maintain IIS.
The images in directory structure is more scalable because very large databases are more likely to become unstable and carrying a 50k image in every image field rather than 2 bytes of text will make the database roughly 25000 times larger. I have already mentioned the difference in serving methods which stands in favour of recycling images. A static site will be faster than a dynamic site of equivalent size, so where you can, take advantage of that.

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