I am trying to retrieve multiple pdf/tiff file from a particular location in the FTP server, join them and send them to a jsp page to be displayed. So far, this is what i have done.
In the action class, a)i try to retrieve the file details in a bean called pdfbean, b)pass pdfbean to a method which makes an ftp connection and retrieves the file from the server c)convert it into a byte[] and return it to be added to a document.
Now this document is stored in C:\ which is not what i want. I want to send it to a jsp page. As of now, i dont know how to send it.
ArrayList<PdfBean> list = msgDH.getFileDtls(hawbString);
Document doc = new Document();
PdfWriter write = PdfWriter.getInstance(doc,
new FileOutputStream("c://Image.pdf"));
write.setPdfVersion(PdfWriter.PDF_VERSION_1_5);
doc.open();
for (PdfBean pdfBean : list)
{
byte[] Image2 = getfile(pdfBean);
Image img = Image.getInstance(Image2);
doc.add(img);
doc.newPage();
}
doc.close();
System.out.println("Done saving");
Below is the getfile() methood
private byte[] getfile(PdfBean pdfBean)
{
byte[] result = null;
boolean test = false;
FTPClient ftp = new FTPClient();
DataSourceReader dsr = new DataSourceReader();
dsr.getFtpLinks();
String ftppassword = dsr.getFtppassword();
String ftpserver = dsr.getFtpserver();
String ftpusername = dsr.getFtpusername();
System.out.println("no" + ftpserver + ftpusername + ftppassword);
try
{
ftp.connect(ftpserver);
} catch (SocketException e1)
{
e1.printStackTrace();
} catch (IOException e1)
{
e1.printStackTrace();
}
InputStream is = null;
BufferedInputStream bis = null;
try
{
boolean login = ftp.login(ftpusername, ftppassword);
} catch (IOException e1)
{
e1.printStackTrace();
}
try
{
int reply;
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply))
{
ftp.disconnect();
System.out.println("FTP server refused connection.");
} else
{
ftp.enterLocalPassiveMode();
FTPFile[] ftpFiles = ftp.listFiles(pdfBean.getFileLocation());
String fN = "";
int i = 0;
//tiff and pdf files reside in different folders.
if (pdfBean.getFileLocation().equals("/hold/TIF"))
{
String F = pdfBean.getFileName().replaceAll(".PDF", ".TIF");
for (FTPFile ftpFile : ftpFiles)
{
if (ftpFile.getName().equals(F))
{
fN = pdfBean.getFileLocation().concat("/")
.concat(F);
i = 1;
}
}
if (i == 0)
{
F = pdfBean.getFileName().replaceAll(".PDF", ".TIFF");
for (FTPFile ftpFile : ftpFiles)
{
if (ftpFile.getName().equals(F))
{
fN = pdfBean.getFileLocation().concat("/")
.concat(F);
i = 1;
}
}
}
} else
{
fN = pdfBean.getFileLocation().concat("/")
.concat(pdfBean.getFileName());
}
InputStream in = ftp.retrieveFileStream(fN);
BufferedInputStream inbf = new BufferedInputStream(in);
byte[] buffer = IOUtils.toByteArray(in);// new byte[1024];
result = buffer;
/*
* int readCount;
*
* int lenght = 0;
*
* while( (readCount = inbf.read(buffer)) > 0) { int preLength =
* lenght; lenght += readCount; byte temp[] = new
* byte[result.length]; result = new byte[lenght];
* System.arraycopy(temp,0,result,0,temp.length);
* System.arraycopy(buffer,0,result,preLength,readCount); }
*/
}
} catch (Exception ex)
{
System.out.println("Exception ----->" + ex.getMessage());
} finally
{
try
{
if (bis != null)
{
bis.close();
}
if (is != null)
{
is.close();
}
} catch (IOException e)
{
e.printStackTrace();
}
try
{
ftp.logout();
} catch (IOException e)
{
e.printStackTrace();
}
try
{
ftp.disconnect();
} catch (IOException e)
{
e.printStackTrace();
}
}
return result;
}
I get a java.lang.NegativeArraySizeException Where am i going wrong. And do you foresee any problems in adding a tif and pdf as images to the same document. And finally, once i have the file ready, how do i send it to a JSP page ?
