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https://issues.apache.org/jira/browse/NET-584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15927974#comment-15927974
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Sebb commented on NET-584:
--------------------------
Servers that don't send NOOP replies whilst a transfer is in progress seem to
send the get/put completion response before the NOOP responses.
That makes sense, since presumably the server does not even see the NOOP until
the transfer completes.
So long as no responses are lost, it does not matter which order they replies
are processed by FTPClient, because it only looks for a successful code, not a
particular success code.
That is probably why it works for shorter files.
> Error with org.apache.commons.net.ftp.FTPClient
> ------------------------------------------------
>
> Key: NET-584
> URL: https://issues.apache.org/jira/browse/NET-584
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Reporter: Kazantsev Andrey Sergeevich
>
> I have a question about using library commons-net-3.4.jar
> Question is about org.apache.commons.net.ftp.FTPClient method
> setControlKeepAliveTimeout.
> Read about using it on:
> https://commons.apache.org/proper/commons-net/apidocs/org/apache/commons/net/ftp/FTPClient.html
> When I use it in my code I get this error:
> {code}
> java.net.SocketTimeoutException: Read timed out
> at java.net.SocketInputStream.socketRead0(Native Method)
> at java.net.SocketInputStream.read(SocketInputStream.java:163)
> at java.net.SocketInputStream.read(SocketInputStream.java:133)
> at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:322)
> at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:364)
> at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:210)
> at java.io.InputStreamReader.read(InputStreamReader.java:205)
> at java.io.BufferedReader.fill(BufferedReader.java:165)
> at java.io.BufferedReader.read(BufferedReader.java:186)
> at
> org.apache.commons.net.io.CRLFLineReader.readLine(CRLFLineReader.java:58)
> at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:313)
> at org.apache.commons.net.ftp.FTP.__getReplyNoReport(FTP.java:303)
> at org.apache.commons.net.ftp.FTPClient$CSL.cleanUp(FTPClient.java:3838)
> at org.apache.commons.net.ftp.FTPClient._storeFile(FTPClient.java:695)
> at org.apache.commons.net.ftp.FTPClient.__storeFile(FTPClient.java:643)
> at org.apache.commons.net.ftp.FTPClient.storeFile(FTPClient.java:2033)
> at ru.mdm.File.Transfer.FTP.PutRemoteFileBinary(FTP.java:192)
> at
> ru.mdm.File.Transfer.TimeLimit.Thread.Protocol.PutRemoteFileBinaryThread.actionsToExecute(PutRemoteFileBinaryThread.java:23)
> at
> ru.mdm.File.Transfer.TimeLimit.OperationThread.run(OperationThread.java:60)
> {code}
> Without enabling this option all works fine.
> Here is the code:
> {code}
> package ru.mdm.File.Transfer;
> import bin.ru.osa.common.utils.*;
> import java.util.List;
> import java.io.*;
> import com.ibm.broker.javacompute.MbJavaComputeNode;
> import com.ibm.broker.plugin.*;
> import org.apache.commons.net.ftp.*;
> import org.apache.commons.net.*;
> import ru.mdm.File.Transfer.Options.OptionsXMLProcessor;
> public class FTP implements Protocol
> {
>
> FTPClient client = new FTPClient();
>
> OptionsXMLProcessor optionsXMLProcessor;
>
>
> boolean st;
> String LastMessage = new String();
>
> boolean ignoreErrors = false;
>
>
> public FTP()
> {
> super();
> }
>
> protected void finalize() { disconnect(); }
>
> public void connect(String CntName,
> String Host,
> String Port,
> String L,
> String P) throws Exception
> {
> try
> {
> client.setControlKeepAliveTimeout(300);
> client.connect(Host);
> client.login(L, P);
> CheckState();
> }
> catch(Exception e)
> {
> LastMessage=client.getReplyString();
> if(LastMessage == null) LastMessage = e.getMessage();
>
> e.printStackTrace();
>
> throw e;
> }
> }
>
> public void disconnect()
> {
> try
> {
> if(client.isConnected())
> {
> client.logout();
> client.disconnect();
> }
> }
> catch(Exception e)
> {
> e.printStackTrace();
> }
> }
>
> public void chmod(String RemoteFile, String Rights) throws Exception
> {
> client.sendSiteCommand("chmod "+RemoteFile+" "+Rights);
> CheckState();
> }
>
>
> public void lsMB(MbElement InputDir,MbElement filelist) throws
> Exception, MbException
> {
> MbElement xfile;
>
> for (FTPFile file :
> client.listFiles((String)InputDir.evaluateXPath("string(SOURCE_PATH)")))
> {
> if(!file.isFile()) continue; //-- No sub-dirs, No Symlinks !
>
>
> xfile=filelist.createElementAsLastChild(MbElement.TYPE_NAME,
> "File", null);
> xfile.createElementAsLastChild(MbElement.TYPE_NAME, "FileName",
> file.getName());
> xfile.createElementAsLastChild(MbElement.TYPE_NAME, "FileSize",
> file.getSize());
> xfile.createElementAsLastChild(MbElement.TYPE_NAME, "SourcePath",
> (String)InputDir.evaluateXPath("string(SOURCE_PATH)"));
> xfile.createElementAsLastChild(MbElement.TYPE_NAME,
> "SourceGateway", (String)InputDir.evaluateXPath("string(GATEWAY_NAME)"));
> }
> }
>
> public void mkdir(String RemotePath) throws Exception
> {
> client.makeDirectory(RemotePath);
> CheckState();
> }
>
> public void chdir(String RemotePath) throws Exception
> {
> client.changeWorkingDirectory(RemotePath);
> CheckState();
> }
>
> public void delete(String RemotePath) throws Exception
> {
> client.deleteFile(RemotePath);
> CheckState();
> }
>
>
>
> public void rename(String RemoteFileSrc, String RemoteFileDst)
> throws Exception
> {
> client.rename(RemoteFileSrc, RemoteFileDst);
> CheckState();
> }
>
>
> public void GetRemoteFileBinary(String RemoteFile, String LocalFile)
> throws Exception
> {
> client.enterLocalPassiveMode();
> client.setFileType(FTPClient.BINARY_FILE_TYPE);
> client.retrieveFile(RemoteFile,
> new FileOutputStream(LocalFile));
>
>
> CheckState();
> }
>
> public void PutRemoteFileBinary(String LocalFile, String RemoteFile)
> throws Exception
> {
> client.enterLocalPassiveMode();
> client.setFileType(FTPClient.BINARY_FILE_TYPE);
> client.storeFile(RemoteFile,
> new FileInputStream(LocalFile));
> CheckState();
> }
>
>
> public void ignoreErrors(boolean x) { ignoreErrors=x; }
>
>
> public boolean isOK() { return st; }
>
> public boolean isConnected()
> {
> boolean answer=false;
> try {
> answer = client.sendNoOp();
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> st = answer;
> return answer;
>
> }
>
>
> public String LastMessage() { return LastMessage; };
>
>
> public void CheckState(boolean state) throws Exception
> {
> int reply = client.getReplyCode();
> if(FTPReply.isPositiveCompletion(reply)) st=true;
> else st=false;
>
> LastMessage=client.getReplyString();
>
> if(!st && !ignoreErrors)
> throw new Exception(LastMessage);
> }
>
> public void CheckState() throws Exception
> {
> int reply = client.getReplyCode();
> if(FTPReply.isPositiveCompletion(reply)) st=true;
> else st=false;
>
> LastMessage=client.getReplyString();
>
> if(!st && !ignoreErrors)
> throw new Exception(LastMessage);
> }
>
> public void attachOptions(OptionsXMLProcessor optionsXMLProcessor)
> throws Exception
> {
> this.optionsXMLProcessor = optionsXMLProcessor;
> }
>
> public String getIP() {
>
> return "";
> }
>
> public boolean isIgnoreErrors()
> {
> return ignoreErrors;
> }
> }
> {code}
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