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Don't crash when refreshing IntelliSense cache disconnected (#260)

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* Prevent null ref exception in refresh cache handler

* Send refresh complete event when disconnected

* Wrap handler in global try/catch
This commit is contained in:
Karl Burtram
2017-02-28 16:15:11 -08:00
committed by Kevin Cunnane
parent dd9f2d55d4
commit 213de5cc12
1 changed files with 62 additions and 45 deletions
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107
src/Microsoft.SqlTools.ServiceLayer/LanguageServices/LanguageService.cs
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@@ -456,56 +456,73 @@ namespace Microsoft.SqlTools.ServiceLayer.LanguageServices
/// Handle the rebuild IntelliSense cache notification
/// </summary>
public async Task HandleRebuildIntelliSenseNotification(
RebuildIntelliSenseParams configChangeParams,
RebuildIntelliSenseParams rebuildParams,
EventContext eventContext)
{
Logger.Write(LogLevel.Verbose, "HandleRebuildIntelliSenseNotification");
// Skip closing this file if the file doesn't exist
var scriptFile = this.CurrentWorkspace.GetFile(configChangeParams.OwnerUri);
if (scriptFile == null)
try
{
return;
Logger.Write(LogLevel.Verbose, "HandleRebuildIntelliSenseNotification");
// Skip closing this file if the file doesn't exist
var scriptFile = this.CurrentWorkspace.GetFile(rebuildParams.OwnerUri);
if (scriptFile == null)
{
return;
}
ConnectionInfo connInfo;
LanguageService.ConnectionServiceInstance.TryFindConnection(
scriptFile.ClientFilePath,
out connInfo);
// check that there is an active connection for the current editor
if (connInfo != null)
{
await Task.Run(() =>
{
ScriptParseInfo scriptInfo = GetScriptParseInfo(connInfo.OwnerUri, createIfNotExists: false);
if (scriptInfo != null && scriptInfo.IsConnected &&
Monitor.TryEnter(scriptInfo.BuildingMetadataLock, LanguageService.OnConnectionWaitTimeout))
{
try
{
this.BindingQueue.AddConnectionContext(connInfo, overwrite: true);
}
catch (Exception ex)
{
Logger.Write(LogLevel.Error, "Unknown error " + ex.ToString());
}
finally
{
// Set Metadata Build event to Signal state.
Monitor.Exit(scriptInfo.BuildingMetadataLock);
}
}
// if not in the preview window and diagnostics are enabled then run diagnostics
if (!IsPreviewWindow(scriptFile)
&& WorkspaceService<SqlToolsSettings>.Instance.CurrentSettings.IsDiagnositicsEnabled)
{
RunScriptDiagnostics(
new ScriptFile[] { scriptFile },
eventContext);
}
// Send a notification to signal that autocomplete is ready
ServiceHost.Instance.SendEvent(IntelliSenseReadyNotification.Type, new IntelliSenseReadyParams() {OwnerUri = connInfo.OwnerUri});
});
}
else
{
// Send a notification to signal that autocomplete is ready
await ServiceHost.Instance.SendEvent(IntelliSenseReadyNotification.Type, new IntelliSenseReadyParams() {OwnerUri = rebuildParams.OwnerUri});
}
}
ConnectionInfo connInfo;
LanguageService.ConnectionServiceInstance.TryFindConnection(
scriptFile.ClientFilePath,
out connInfo);
await Task.Run(() =>
catch (Exception ex)
{
ScriptParseInfo scriptInfo = GetScriptParseInfo(connInfo.OwnerUri, createIfNotExists: false);
if (scriptInfo != null && scriptInfo.IsConnected &&
Monitor.TryEnter(scriptInfo.BuildingMetadataLock, LanguageService.OnConnectionWaitTimeout))
{
try
{
this.BindingQueue.AddConnectionContext(connInfo, overwrite: true);
}
catch (Exception ex)
{
Logger.Write(LogLevel.Error, "Unknown error " + ex.ToString());
}
finally
{
// Set Metadata Build event to Signal state.
Monitor.Exit(scriptInfo.BuildingMetadataLock);
}
}
// if not in the preview window and diagnostics are enabled then run diagnostics
if (!IsPreviewWindow(scriptFile)
&& WorkspaceService<SqlToolsSettings>.Instance.CurrentSettings.IsDiagnositicsEnabled)
{
RunScriptDiagnostics(
new ScriptFile[] { scriptFile },
eventContext);
}
// Send a notification to signal that autocomplete is ready
ServiceHost.Instance.SendEvent(IntelliSenseReadyNotification.Type, new IntelliSenseReadyParams() {OwnerUri = connInfo.OwnerUri});
});
Logger.Write(LogLevel.Error, "Unknown error " + ex.ToString());
await ServiceHost.Instance.SendEvent(IntelliSenseReadyNotification.Type, new IntelliSenseReadyParams() {OwnerUri = rebuildParams.OwnerUri});
}
}
/// <summary>