@Override
public String handleCommand(String aSessionId, String anInput) {
if (anInput.startsWith(Command.FILE.name())) {
// just get the pipe protocol to make sure it is there and to add the listener to it
try {
getPipeProtocol();
String theFileName = anInput.substring(Command.FILE.name().length() + 1);
if (myFileHandler == null) {
return Response.REFUSED.name();
}
File theFile = myFileHandler.acceptFile(theFileName);
if (theFile == null) {
return Response.REFUSED.name();
}
FileStatus theStatus = new FileStatus(theFileName, theFile);
UUID theUID = UUID.randomUUID();
myMapping.put(theUID, theStatus);
return Response.ACCEPTED.name() + " " + theUID.toString();
} catch (ProtocolException e) {
return ProtocolContainer.Response.UNKNOWN_PROTOCOL.name();
}
} else if (anInput.startsWith(Command.WAIT_FOR_FILE.name())) {
String[] theFileAttributes = anInput.split(" ");
String theFileId = theFileAttributes[1];
long theFileSize = Long.parseLong(theFileAttributes[2]);
UUID theFileUUID = UUID.fromString(theFileId);
if (!myMapping.containsKey(theFileUUID)) {
return Response.FILE_NOK.name();
} else {
try {
FileStatus theFileStatus = myMapping.get(theFileUUID);
FileStatus.Status theStatus = theFileStatus.waitForStatus();
if (theStatus == FileStatus.Status.OK) {
// check the file size
long theRealLength = theFileStatus.getFile().length();
if (theRealLength == theFileSize) {
return Response.FILE_OK.name();
} else {
return Response.BAD_FILE_SIZE.name();
}
} else {
return Response.FILE_NOK.name();
}
} catch (InterruptedException e) {
return Response.FILE_NOK.name();
}
}
}
return Response.UNKNOWN_COMMAND.name();
}
public void sendFile(File aFile, String aPeerid) throws FileTransferException {
String theResponse = null;
ProtocolContainer theProtocolContainer = findProtocolContainer();
AbstractPeer thePeer = null;
try {
thePeer = getRoutingTable().getEntryForPeer(aPeerid).getPeer();
MessageProtocol theMessageProtocol =
(MessageProtocol) theProtocolContainer.getProtocol("MSG");
Message theMessage = new Message();
theMessage.setDestination(thePeer);
theMessage.setMessage(createMessage(Command.FILE.name() + " " + aFile.getName()));
theMessage.setProtocolMessage(true);
theMessage.setMessageTimeoutInSeconds(-1);
theResponse = theMessageProtocol.sendMessage(theMessage);
} catch (ProtocolException e) {
throw new FileTransferException(
"Could not transfer file because message protocol is not known", e);
} catch (MessageException e) {
throw new FileTransferException(
"Could not transfer file because message could not be delivered", e);
} catch (UnknownPeerException e) {
throw new FileTransferException(
"Could not transfer file because given peer id is not known", e);
}
if (!theResponse.startsWith(Response.ACCEPTED.name())) {
throw new FileTransferException(
"The file: '"
+ aFile.getName()
+ "' was refused by peer: '"
+ thePeer.getPeerId()
+ "' with response '"
+ theResponse
+ "'");
} else {
String theFileId = theResponse.split(" ")[1];
// TODO we probably should not just cast to SocketPeer
Pipe thePipe = new Pipe((SocketPeer) thePeer);
thePipe.setPipeDescription("FILE:" + theFileId + ":" + aFile.length());
FileInputStream theInputStream = null;
try {
PipeProtocol thePipeProtocol = getPipeProtocol();
thePipeProtocol.openPipe(thePipe);
theInputStream = new FileInputStream(aFile);
IOTools.copyStream(theInputStream, thePipe.getSocket().getOutputStream());
thePipeProtocol.closePipe(thePipe);
theResponse =
getPeerSender()
.send(
thePeer,
createMessage(
Command.WAIT_FOR_FILE.name() + " " + theFileId + " " + aFile.length()))
.getReply();
if (theResponse.equalsIgnoreCase(Response.BAD_FILE_SIZE.name())) {
throw new FileTransferException("Received file had bad file size");
}
if (theResponse.equalsIgnoreCase(Response.FILE_NOK.name())) {
throw new FileTransferException("Sending file failed");
}
} catch (Exception e) {
throw new FileTransferException(
"Transferring file to peer: '" + thePeer.getPeerId() + "' could not be initiated", e);
} finally {
if (theInputStream != null) {
try {
theInputStream.close();
} catch (IOException e) {
}
}
}
}
}
