/// <summary>
/// Removes Windows event log sources provided by the the argument
/// </summary>
/// <param name="data">Data to create performance counters</param>
public static WindowsLogInstallationResult RemoveEventLogSources(EventLogCreationData data)
{
var errors = new Dictionary<string, Exception>();
var installedSources = new Dictionary<string, List<string>>();
if (data == null) throw new ArgumentNullException("data");
// --- Install sources one-by-one
foreach (var creationData in data.SourceCreationData)
{
// --- Check if source already exists
if (!EventLog.SourceExists(creationData.Source)) continue;
// --- Check, if the appropriate log holds the source
var sourceLog = EventLog.LogNameFromSourceName(creationData.Source, ".");
if (sourceLog != creationData.LogName) continue;
// --- Remove the source from its current log
EventLog.DeleteEventSource(creationData.Source);
// --- Add source to results
List<string> sources;
if (!installedSources.TryGetValue(creationData.LogName, out sources))
{
installedSources.Add(creationData.LogName, new List<string> {creationData.Source});
}
else
{
sources.Add(creationData.Source);
}
}
return new WindowsLogInstallationResult(installedSources, errors);
}
public void InstallOverrridesExistingSource()
{
// --- Arrange
const string LOG1 = "_myLog1";
const string LOG2 = "_myLog2";
if (EventLog.Exists(LOG1)) EventLog.Delete(LOG1);
if (EventLog.Exists(LOG2)) EventLog.Delete(LOG2);
var data = new EventLogCreationData();
data.Add(LOG1, "Source1");
data.Add(LOG1, "Source2");
data.Add(LOG2, "Source3");
data.Add(LOG2, "Source1"); // --- Overrides LOG1
// --- Act
var result = WindowsEventLogManager.InstallEventLogSources(data);
// --- Assert
result.Errors.ShouldHaveCountOf(0);
result.AffectedSources.ShouldHaveCountOf(2);
result.AffectedSources[LOG1].ShouldHaveCountOf(2);
result.AffectedSources[LOG1].ShouldContain("Source1");
result.AffectedSources[LOG1].ShouldContain("Source2");
result.AffectedSources[LOG2].ShouldHaveCountOf(2);
result.AffectedSources[LOG2].ShouldContain("Source3");
result.AffectedSources[LOG2].ShouldContain("Source1");
EventLog.LogNameFromSourceName("Source1", ".").ShouldEqual(LOG2);
EventLog.LogNameFromSourceName("Source2", ".").ShouldEqual(LOG1);
EventLog.LogNameFromSourceName("Source3", ".").ShouldEqual(LOG2);
}
public void EventLogCreationDataAddFailesWithWrongType()
{
// --- Arrange
var data = new EventLogCreationData();
// --- Act
data.Add(typeof(int));
}
/// <summary>
/// Installs Windows event log sources provided by the the argument
/// </summary>
/// <param name="data">Data to create performance counters</param>
public static WindowsLogInstallationResult InstallEventLogSources(EventLogCreationData data)
{
var errors = new Dictionary <string, Exception>();
var installedSources = new Dictionary <string, List <string> >();
if (data == null)
{
throw new ArgumentNullException("data");
}
// --- Install sources one-by-one
foreach (var creationData in data.SourceCreationData)
{
try
{
// --- Check if source already exists
if (EventLog.SourceExists(creationData.Source))
{
// --- Check, if the appripriate log holds the source
var sourceLog = EventLog.LogNameFromSourceName(creationData.Source, ".");
if (sourceLog != creationData.LogName)
{
// --- Remove the source from its current log
EventLog.DeleteEventSource(creationData.Source);
EventLog.CreateEventSource(creationData);
}
}
else
{
// --- At this point the source can be created
EventLog.CreateEventSource(creationData);
}
// --- Add source to results
List <string> sources;
if (!installedSources.TryGetValue(creationData.LogName, out sources))
{
installedSources.Add(creationData.LogName, new List <string> {
creationData.Source
});
}
else
{
sources.Add(creationData.Source);
}
}
catch (Exception ex)
{
errors[creationData.Source] = ex;
}
}
return(new WindowsLogInstallationResult(installedSources, errors));
}
public void InstallSignsSourceIssues()
{
// --- Arrange
const string LOG1 = "My very long name 1";
const string LOG2 = "My very long name 2";
if (EventLog.Exists(LOG1)) EventLog.Delete(LOG1);
var data = new EventLogCreationData();
data.Add(LOG1, "Source1");
data.Add(LOG2, "Source2");
// --- Act
var result = WindowsEventLogManager.InstallEventLogSources(data);
if (EventLog.Exists(LOG1)) EventLog.Delete(LOG1);
if (EventLog.Exists(LOG2)) EventLog.Delete(LOG2);
// --- Assert
result.Errors.ShouldHaveCountOf(1);
}
public void InstallSignsSourceIssues2()
{
// --- Arrange
const string LOG1 = null;
// ReSharper disable AssignNullToNotNullAttribute
if (EventLog.Exists(LOG1)) EventLog.Delete(LOG1);
// ReSharper restore AssignNullToNotNullAttribute
var data = new EventLogCreationData();
data.Add(LOG1, "Source1");
// --- Act
var result = WindowsEventLogManager.InstallEventLogSources(data);
// ReSharper disable AssignNullToNotNullAttribute
if (EventLog.Exists(LOG1)) EventLog.Delete(LOG1);
// ReSharper restore AssignNullToNotNullAttribute
// --- Assert
result.Errors.ShouldHaveCountOf(1);
Console.WriteLine(result.Errors.First().Value.Message);
}
public void RemoveWorksAsExpected()
{
// --- Arrange
InstallWorksAsExpected();
const string LOG1 = "_myLog1";
const string LOG2 = "_myLog2";
var data = new EventLogCreationData();
data.Add(LOG1, "Source1");
data.Add(LOG1, "Source2");
data.Add(LOG2, "Source3");
data.Add(LOG2, "Source4");
// --- Act
var result = WindowsEventLogManager.RemoveEventLogSources(data);
// --- Assert
result.Errors.ShouldHaveCountOf(0);
result.AffectedSources.ShouldHaveCountOf(2);
result.AffectedSources[LOG1].ShouldHaveCountOf(2);
result.AffectedSources[LOG1].ShouldContain("Source1");
result.AffectedSources[LOG1].ShouldContain("Source2");
result.AffectedSources[LOG2].ShouldHaveCountOf(2);
result.AffectedSources[LOG2].ShouldContain("Source3");
result.AffectedSources[LOG2].ShouldContain("Source4");
EventLog.SourceExists("Source1", ".").ShouldBeFalse();
EventLog.SourceExists("Source2", ".").ShouldBeFalse();
EventLog.SourceExists("Source3", ".").ShouldBeFalse();
EventLog.SourceExists("Source4", ".").ShouldBeFalse();
}
public void InstallWorksFromAssemblyExpected()
{
// --- Arrange
if (EventLog.Exists(SEEMPLEST_LOG)) EventLog.Delete(SEEMPLEST_LOG);
if (EventLog.Exists(SEEMPLEST_LOG2)) EventLog.Delete(SEEMPLEST_LOG2);
var data = new EventLogCreationData();
data.Clear();
data.MergeSourcesFromAssembly(Assembly.GetExecutingAssembly());
// --- Act
var result = WindowsEventLogManager.InstallEventLogSources(data);
// --- Assert
result.Errors.ShouldHaveCountOf(0);
result.AffectedSources.ShouldHaveCountOf(2);
result.AffectedSources[SEEMPLEST_LOG].ShouldHaveCountOf(2);
result.AffectedSources[SEEMPLEST_LOG].ShouldContain("Source1");
result.AffectedSources[SEEMPLEST_LOG].ShouldContain("Source2");
result.AffectedSources[SEEMPLEST_LOG2].ShouldHaveCountOf(1);
result.AffectedSources[SEEMPLEST_LOG2].ShouldContain("Source3");
EventLog.LogNameFromSourceName("Source1", ".").ShouldEqual(SEEMPLEST_LOG);
EventLog.LogNameFromSourceName("Source2", ".").ShouldEqual(SEEMPLEST_LOG);
EventLog.LogNameFromSourceName("Source3", ".").ShouldEqual(SEEMPLEST_LOG2);
}
public void InstallWorksAsExpectedWithMappers()
{
// --- Arrange
const string LOG1 = "_myLog1";
const string LOG2 = "_myLog2";
if (EventLog.Exists(LOG1 + "L")) EventLog.Delete(LOG1);
if (EventLog.Exists(LOG2 + "L")) EventLog.Delete(LOG2);
var data = new EventLogCreationData();
var mapper = new DummyNameMapper();
data.Add(LOG1, "Source1", mapper, mapper);
data.Add(LOG1, "Source2", mapper, mapper);
data.Add(LOG2, "Source3", mapper, mapper);
data.Add(LOG2, "Source4", mapper, mapper);
// --- Act
var result = WindowsEventLogManager.InstallEventLogSources(data);
// --- Assert
result.Errors.ShouldHaveCountOf(0);
result.AffectedSources.ShouldHaveCountOf(2);
result.AffectedSources[LOG1 + "L"].ShouldHaveCountOf(2);
result.AffectedSources[LOG1 + "L"].ShouldContain("Source1L");
result.AffectedSources[LOG1 + "L"].ShouldContain("Source2L");
result.AffectedSources[LOG2 + "L"].ShouldHaveCountOf(2);
result.AffectedSources[LOG2 + "L"].ShouldContain("Source3L");
result.AffectedSources[LOG2 + "L"].ShouldContain("Source4L");
EventLog.LogNameFromSourceName("Source1L", ".").ShouldEqual(LOG1 + "L");
EventLog.LogNameFromSourceName("Source2L", ".").ShouldEqual(LOG1 + "L");
EventLog.LogNameFromSourceName("Source3L", ".").ShouldEqual(LOG2 + "L");
EventLog.LogNameFromSourceName("Source4L", ".").ShouldEqual(LOG2 + "L");
}
