FileDownload API

Question

Hi All:
I am trying to write a java code/jsp to download file(s) from
the repository using Java APIs availale within Oracle
Repository. I have the file name and version number as inputs.
using them as inputs, I want to download them to my local drive
using java APIs. How can I do this? Can anyone please share the
code to do this?
Thanks in Advance,
Vinay

Answer 1

Vinay,
The following does a file upload, this should give you a good
starter. Have a look at the Java API and you should be able to
edit this for file download. Beware the parameters are different
for upload and download. Look at downloadByName to replace
uploadByName.
regards
David
** Author:
** Purpose: Programatically upload files into repository
** Date: 25-Sept-2001
package oracle.example.cdr.repos;
import oracle.repos.services.connection.RepositoryConnection;
import oracle.repos.services.ReposServiceException;
import oracle.repos.services.file.FileService;
import oracle.repos.services.file.FileServiceException;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Vector;
import oracle.sql.*;
import oracle.jdbc.driver.*;
public class UploadFile
public static void main(String[] args)
String user = "repowner";
String password = "repowner";
String sid = "@xxxx:1521:xxxxx";
String connectStr
= "jdbc:oracle:thin:"+user+"/"+password+sid;
try{
// Get JDBC Connection object
DriverManager.registerDriver(new
oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection(connectStr);
/* For some reason initialising a RepositoryConnection
does not do this... */
conn.setAutoCommit( false );
// Get RepositoryConnection object
RepositoryConnection repConn = new RepositoryConnection
(conn);
// Set Context WorkArea
repConn.setActiveWorkArea("WA1");
// FileService creation
FileService fd = new FileService(repConn);
fd.uploadByName
( "C:\\Folder1" /* OS directory path (any
valid OS path) */
, "Test4.txt" /* Name filter (can
include wildcards (e.g. "*") */
, "repos_folder1" /* Repository path (must
be a full path, e.g. "fol1\\fol2\\fol3") */
, null /* Not
used */
, null /* Ctxt folder ID (if
NULL, then repos path is used) */
, FileService.FS_ADD_NEW_FILES /* Add new
files */
| FileService.FS_OVERWRITE /* Overwrite existing
files */
/* Close FileService, free resources and ensure repos
activity is closed (i.e. commit) */
fd.close( );
// Close Repository Connection
repConn.close();
catch (SQLException e){
System.out.println("SQL exception");
catch (ReposServiceException e){
System.out.println("Repos service exception");
catch (FileServiceException e){
/* ReposExceptions are hard to get useful info from
because of internationalisation.
This works best for me.
e.printStackTrace( );
System.out.println("LOCALIZED ERROR :" +
e.getLocalizedMessage());
System.out.println("File service exception");
}