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Code Issues Wiki Activity

Make ssh connection-lost handling more robust

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This commit is contained in:
Martin Oberhuber 2006-05-31 16:34:56 +00:00
parent 6ed9345743
commit 6e734d44bb
2 changed files with 20 additions and 7 deletions
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12
rse/plugins/org.eclipse.rse.connectorservice.ssh/src/org/eclipse/rse/connectorservice/ssh/SshConnectorService.java
View file

@ -292,7 +292,11 @@ public class SshConnectorService extends AbstractConnectorService implements ISs
{
if (session != null) {
// Is disconnect being called because the network (connection) went down?
if (fSessionLostHandler != null && fSessionLostHandler.isSessionLost()) {
boolean sessionLost = (fSessionLostHandler!=null && fSessionLostHandler.isSessionLost());
// no more interested in handling session-lost, since we are disconnecting anyway
fSessionLostHandler = null;
// handle events
if (sessionLost) {
notifyError();
}
else {
@ -300,13 +304,14 @@ public class SshConnectorService extends AbstractConnectorService implements ISs
fireCommunicationsEvent(CommunicationsEvent.BEFORE_DISCONNECT);
}
session.disconnect();
if (session.isConnected()) {
session.disconnect();
}
// Fire comm event to signal state changed
notifyDisconnection();
//TODO MOB - keep the session to avoid NPEs in services (disables gc for the session!)
// session = null;
fSessionLostHandler = null;
// DKM - no need to clear uid cache
clearPasswordCache(false); // clear in-memory password
//clearUserIdCache(); // Clear any cached local user IDs
@ -651,6 +656,7 @@ public class SshConnectorService extends AbstractConnectorService implements ISs
if (session.isConnected()) {
return true;
} else if (fSessionLostHandler!=null) {
Activator.trace("SshConnectorService.isConnected: false -> sessionLost"); //$NON-NLS-1$
fSessionLostHandler.sessionLost();
}
}

15
rse/plugins/org.eclipse.rse.services.ssh/src/org/eclipse/rse/services/ssh/files/SftpFileService.java
View file

@ -100,10 +100,12 @@ public class SftpFileService extends AbstractFileService implements IFileService
}
public void disconnect() {
try {
getChannel("SftpFileService.disconnect").disconnect(); //$NON-NLS-1$
} catch(Exception e) {
/*nothing to do*/
//disconnect-service may be called after the session is already
//disconnected (due to event handling). Therefore, don't try to
//check the session and notify.
Activator.trace("SftpFileService.disconnect"); //$NON-NLS-1$
if (fChannelSftp!=null && fChannelSftp.isConnected()) {
fChannelSftp.disconnect();
}
fChannelSftp = null;
}
@ -522,6 +524,7 @@ public class SftpFileService extends AbstractFileService implements IFileService
// TODO check if newer versions of sftp support move directly
// TODO Interpret some error messages like "command not found" (use ren instead of mv on windows)
// TODO mimic by copy if the remote does not support copying between file systems?
Activator.trace("SftpFileService.move "+srcName); //$NON-NLS-1$
String fullPathOld = enQuote(srcParent + '/' + srcName);
String fullPathNew = enQuote(tgtParent + '/' + tgtName);
int rv = runCommand(monitor, "mv "+fullPathOld+' '+fullPathNew); //$NON-NLS-1$
@ -532,6 +535,7 @@ public class SftpFileService extends AbstractFileService implements IFileService
// move is not supported by sftp directly. Use the ssh shell instead.
// TODO check if newer versions of sftp support move directly
// TODO Interpret some error messages like "command not found" (use (x)copy instead of cp on windows)
Activator.trace("SftpFileService.copy "+srcName); //$NON-NLS-1$
String fullPathOld = enQuote(srcParent + '/' + srcName); //$NON-NLS-1$
String fullPathNew = enQuote(tgtParent + '/' + tgtName); //$NON-NLS-1$
int rv = runCommand(monitor, "cp "+fullPathOld+' '+fullPathNew); //$NON-NLS-1$
@ -540,6 +544,7 @@ public class SftpFileService extends AbstractFileService implements IFileService
public boolean copyBatch(IProgressMonitor monitor, String[] srcParents, String[] srcNames, String tgtParent) throws SystemMessageException
{
Activator.trace("SftpFileService.copyBatch "+srcNames); //$NON-NLS-1$
boolean ok = true;
for (int i = 0; i < srcParents.length; i++)
{
@ -549,6 +554,7 @@ public class SftpFileService extends AbstractFileService implements IFileService
}
public void initService(IProgressMonitor monitor) {
Activator.trace("SftpFileService.initService"); //$NON-NLS-1$
try
{
connect();
@ -559,6 +565,7 @@ public class SftpFileService extends AbstractFileService implements IFileService
}
public void uninitService(IProgressMonitor monitor) {
Activator.trace("SftpFileService.uninitService"); //$NON-NLS-1$
disconnect();
}