Hi, I try to implement an Ftplet in order to serve a kind of "virtual directory" on an FTP server. That is, if I detect in beforeCommand() that the client's command is a LIST on a specific name, I want to compute the result to send back instead of looking at an actual directory.
So I use the following code in beforeCommand() (in my own class that implements Ftplet): session.write(new DefaultFtpReply(150, "File status okay; about to open data connection.")); DataConnectionFactory factory = session.getDataConnection(); DataConnection cxion = factory.openConnection(); cxion.transferToClient(session, "<file 1 info string>\r\n"); cxion.transferToClient(session, "<file 2 info string>\r\n"); factory.closeDataConnection(); session.write(new DefaultFtpReply(226, "Closing data connection.")); return FtpletResult.SKIP; But the second call to cxion.transferToClient() throws a socket exception: java.net.SocketException: Socket is closed at java.net.Socket.getOutputStream(Socket.java:828) at org.apache.ftpserver.impl.IODataConnection.getDataOutputStream(IODataConnection.java:107) at org.apache.ftpserver.impl.IODataConnection.transferToClient(IODataConnection.java:176) at org.fgeorges.ftpserver.FtpletTry$MyFtplet.beforeCommand(FtpletTry.java:156) at org.apache.ftpserver.ftpletcontainer.impl.DefaultFtpletContainer.beforeCommand(DefaultFtpletContainer.java:162) at org.apache.ftpserver.impl.DefaultFtpHandler.messageReceived(DefaultFtpHandler.java:196) at org.apache.ftpserver.listener.nio.FtpHandlerAdapter.messageReceived(FtpHandlerAdapter.java:61) at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:716) at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) at org.apache.ftpserver.listener.nio.FtpLoggingFilter.messageReceived(FtpLoggingFilter.java:85) at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:75) at org.apache.mina.filter.logging.MdcInjectionFilter.filter(MdcInjectionFilter.java:136) at org.apache.mina.filter.util.CommonEventFilter.messageReceived(CommonEventFilter.java:70) at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) at org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:427) at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:245) at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434) at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46) at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:796) at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:75) at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63) at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:780) at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:772) at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:714) at java.lang.Thread.run(Thread.java:680) Any idea why this is the case? And how to resolve it? Regards, -- Florent Georges http://fgeorges.org/ http://h2oconsulting.be/
