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packagecom.resource.util;

importjava.io.BufferedInputStream;importjava.io.BufferedOutputStream;importjava.io.File;importjava.io.FileInputStream;importjava.io.FileOutputStream;

importjava.io.IOException;importjava.net.MalformedURLException;importjava.net.URL;importjava.net.URLConnection;

/***ThisclassisusedtouploadafiletoaFTPserver.**@authorMuthu*/publicclassFileUpload{

/***UploadafiletoaFTPserver.AFTPURLisgeneratedwiththe*followingsyntax:*ftp://user:password@host:port/filePath;type=i.**@paramftpServer,FTPserveraddress(optionalport':portNumber').*@paramuser,Optionalusernametologin.*@parampassword,Optionalpasswordforuser.*@paramfileName,DestinationfilenameonFTPserver(withoptional*precedingrelativepath,e.g."myDir/myFile.txt").*@paramsource,Sourcefiletoupload.*@throwsMalformedURLException,IOExceptiononerror.

*/publicvoidupload(StringftpServer,Stringuser,Stringpassword,StringfileName,Filesource)throwsMalformedURLException,IOException{if(ftpServer!=null&&fileName!=null&&source!=null){StringBuffersb=newStringBuffer("ftp://");//checkforauthenticationelseassumeitsanonymousaccess.if(user!=null&&password!=null){sb.append(user);

sb.append(':');sb.append(password);sb.append('@');}sb.append(ftpServer);sb.append('/');sb.append(fileName);/**type==>a=ASCIImode,i=image(binary)mode,d=filedirectory*listing*/sb.append(";type=i");

BufferedInputStreambis=null;BufferedOutputStreambos=null;try

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{URLurl=newURL(sb.toString());URLConnectionurlc=url.openConnection();

bos=newBufferedOutputStream(urlc.getOutputStream());bis=newBufferedInputStream(newFileInputStream(source));

inti;//readbytebybyteuntilendofstreamwhile((i=bis.read())!=-1){bos.write(i);}}finally{if(bis!=null)try{

bis.close();}catch(IOExceptionioe){ioe.printStackTrace();}if(bos!=null)try{bos.close();}catch(IOExceptionioe){

ioe.printStackTrace();}}}else{System.out.println("Inputnotavailable.");}}

/***DownloadafilefromaFTPserver.AFTPURLisgeneratedwiththe*followingsyntax:*ftp://user:password@host:port/filePath;type=i.**@paramftpServer,FTPserveraddress(optionalport':portNumber').*@paramuser,Optionalusernametologin.*@parampassword,Optionalpasswordforuser.*@paramfileName,Nameoffiletodownload(withoptionalpreceeding*relativepath,e.g.one/two/three.txt).*@paramdestination,Destinationfiletosave.*@throwsMalformedURLException,IOExceptiononerror.*/publicvoiddownload(StringftpServer,Stringuser,Stringpassword,StringfileName,Filedestination)throwsMalformedURLException,

IOException{if(ftpServer!=null&&fileName!=null&&destination!=null)

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{StringBuffersb=newStringBuffer("ftp://");//checkforauthenticationelseassumeitsanonymousaccess.if(user!=null&&password!=null){sb.append(user);sb.append(':');

sb.append(password);sb.append('@');}sb.append(ftpServer);sb.append('/');sb.append(fileName);/**type==>a=ASCIImode,i=image(binary)mode,d=filedirectory*listing*/sb.append(";type=i");BufferedInputStreambis=null;

BufferedOutputStreambos=null;try{URLurl=newURL(sb.toString());URLConnectionurlc=url.openConnection();

bis=newBufferedInputStream(urlc.getInputStream());bos=newBufferedOutputStream(newFileOutputStream(destination.getName()));

inti;while((i=bis.read())!=-1){

bos.write(i);}}finally{if(bis!=null)try{bis.close();}catch(IOExceptionioe){ioe.printStackTrace();}if(bos!=null)try{bos.close();}catch(IOExceptionioe){ioe.printStackTrace();}}}

else{System.out.println("Inputnotavailable");

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}}}