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Code Issues Wiki Activity

[284018] concurrent SubSystem.connect() calls can result in double login-prompt

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This commit is contained in:
David McKnight 2009-07-30 17:14:59 +00:00
parent a789b21339
commit b9e5cdfd79
1 changed files with 53 additions and 8 deletions
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61
rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystem.java
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@ -48,7 +48,7 @@
* David McKnight (IBM) - [262930] Remote System Details view not restoring filter memento input
* David McKnight (IBM) - [272882] [api] Handle exceptions in IService.initService()
* David McKnight (IBM) - [284018] concurrent SubSystem.connect() calls can result in double login-prompt
********************************************************************************/
* ********************************************************************************/
package org.eclipse.rse.core.subsystems;
import java.lang.reflect.InvocationTargetException;
@ -2443,6 +2443,41 @@ implements IAdaptable, ISubSystem, ISystemFilterPoolReferenceManagerProvider
_isInitialized = false;
}
private static class ConnectorServicePool {
private static List _connectingConnectorServices = new ArrayList();
public synchronized void add(IConnectorService cs) {
_connectingConnectorServices.add(cs);
}
public synchronized void remove(IConnectorService cs) {
_connectingConnectorServices.remove(cs);
notifyAll();
}
public synchronized boolean contains(IConnectorService cs) {
return _connectingConnectorServices.contains(cs);
}
public synchronized void waitUntilNotContained(IConnectorService cs) {
while (contains(cs)){ // wait until the connector service is no longer in the list
try {
wait();
}
catch (InterruptedException e){
e.printStackTrace();
}
catch (Exception e){
e.printStackTrace();
}
}
}
}
private static ConnectorServicePool _connectorServicePool = new ConnectorServicePool();
/*
* Connect to a remote system with a monitor.
* Required for Bug 176603
@ -2462,9 +2497,20 @@ implements IAdaptable, ISubSystem, ISystemFilterPoolReferenceManagerProvider
final Exception[] exception=new Exception[1];
exception[0]=null;
IConnectorService conServ = getConnectorService();
synchronized (conServ){
if (!conServ.isConnected()){
IConnectorService connectorService = getConnectorService();
// is this connector service already connecting?
boolean alreadyConnecting = _connectorServicePool.contains(connectorService);
if (alreadyConnecting){
// connector service already attempting connect
// need to wait for it to complete
// before we can return out of this method
_connectorServicePool.waitUntilNotContained(connectorService);
}
else {
_connectorServicePool.add(connectorService);
try {
Display.getDefault().syncExec(new Runnable() {
public void run() {
try
@ -2475,9 +2521,7 @@ implements IAdaptable, ISubSystem, ISystemFilterPoolReferenceManagerProvider
}
}
});
}
try {
Exception e = exception[0];
if (e == null) {
getConnectorService().connect(monitor);
@ -2490,13 +2534,14 @@ implements IAdaptable, ISubSystem, ISystemFilterPoolReferenceManagerProvider
}
});
}
} else {
} else {
throw e;
}
} finally {
_connectorServicePool.remove(connectorService);
monitor.done();
}
}
}
}
}