LoggerException LoggerException LoggerException LoggerException Class

Definition

Ermöglicht es einem Protokollierungsmodul, die explizite Beendigung des Builds zu erzwingen.Allows a logger to force the build to stop in an explicit way.

public ref class LoggerException : Exception
[System.Serializable]
public class LoggerException : Exception
type LoggerException = class
    inherit Exception
Public Class LoggerException
Inherits Exception
Vererbung
LoggerExceptionLoggerExceptionLoggerExceptionLoggerException
Attribute

Beispiele

Das folgende Beispiel zeigt, wie Sie eine grundlegende Protokollierung schreiben, die zum Erstellen von Ereignissen reagiert.The following example shows how to write a basic logger that responds to build events.

using System;
using System.IO;
using System.Security;
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;

namespace MyLoggers
{
	// This logger will derive from the Microsoft.Build.Utilities.Logger class,
	// which provides it with getters and setters for Verbosity and Parameters,
	// and a default empty Shutdown() implementation.
	public class BasicFileLogger : Logger
	{
		/// <summary>
		/// Initialize is guaranteed to be called by MSBuild at the start of the build
		/// before any events are raised.
		/// </summary>
		public override void Initialize(IEventSource eventSource)
		{
			// The name of the log file should be passed as the first item in the
			// "parameters" specification in the /logger switch.  It is required
			// to pass a log file to this logger. Other loggers may have zero or more than 
			// one parameters.
			if (null == Parameters)
			{
				throw new LoggerException("Log file was not set.");
			}
			string[] parameters = Parameters.Split(';');
			
			string logFile = parameters[0];
			if (String.IsNullOrEmpty(logFile))
			{
				throw new LoggerException("Log file was not set.");
			}
			
			if (parameters.Length > 1)
			{
				throw new LoggerException("Too many parameters passed.");
			}
			
			try
			{
				// Open the file
				this.streamWriter = new StreamWriter(logFile);
			}
			catch (Exception ex)
			{
				if
				(
					ex is UnauthorizedAccessException
					|| ex is ArgumentNullException
					|| ex is PathTooLongException
					|| ex is DirectoryNotFoundException
					|| ex is NotSupportedException
					|| ex is ArgumentException
					|| ex is SecurityException
					|| ex is IOException
				)
				{
					throw new LoggerException("Failed to create log file: " + ex.Message);
				}
				else
				{
					// Unexpected failure
					throw;
				}
			}

			// For brevity, we'll only register for certain event types. Loggers can also
			// register to handle TargetStarted/Finished and other events.
			eventSource.ProjectStarted += new ProjectStartedEventHandler(eventSource_ProjectStarted);
			eventSource.TaskStarted += new TaskStartedEventHandler(eventSource_TaskStarted);
			eventSource.MessageRaised += new BuildMessageEventHandler(eventSource_MessageRaised);
			eventSource.WarningRaised += new BuildWarningEventHandler(eventSource_WarningRaised);
			eventSource.ErrorRaised += new BuildErrorEventHandler(eventSource_ErrorRaised);
			eventSource.ProjectFinished += new ProjectFinishedEventHandler(eventSource_ProjectFinished);
		}

		void eventSource_ErrorRaised(object sender, BuildErrorEventArgs e)
		{
			// BuildErrorEventArgs adds LineNumber, ColumnNumber, File, amongst other parameters
			string line = String.Format(": ERROR {0}({1},{2}): ", e.File, e.LineNumber, e.ColumnNumber);
			WriteLineWithSenderAndMessage(line, e);
		}
		
		void eventSource_WarningRaised(object sender, BuildWarningEventArgs e)
		{
			// BuildWarningEventArgs adds LineNumber, ColumnNumber, File, amongst other parameters
			string line = String.Format(": Warning {0}({1},{2}): ", e.File, e.LineNumber, e.ColumnNumber);
			WriteLineWithSenderAndMessage(line, e);
		}

		void eventSource_MessageRaised(object sender, BuildMessageEventArgs e)
		{
			// BuildMessageEventArgs adds Importance to BuildEventArgs
			// Let's take account of the verbosity setting we've been passed in deciding whether to log the message
			if ((e.Importance == MessageImportance.High && IsVerbosityAtLeast(LoggerVerbosity.Minimal))
				|| (e.Importance == MessageImportance.Normal && IsVerbosityAtLeast(LoggerVerbosity.Normal))
				|| (e.Importance == MessageImportance.Low && IsVerbosityAtLeast(LoggerVerbosity.Detailed))				
				)
			{
				WriteLineWithSenderAndMessage(String.Empty, e);
			}
		}

		void eventSource_TaskStarted(object sender, TaskStartedEventArgs e)
		{
			// TaskStartedEventArgs adds ProjectFile, TaskFile, TaskName
			// To keep this log clean, this logger will ignore these events.
		}
		
		void eventSource_ProjectStarted(object sender, ProjectStartedEventArgs e)
		{
			// ProjectStartedEventArgs adds ProjectFile, TargetNames
			// Just the regular message string is good enough here, so just display that.
			WriteLine(String.Empty, e);
			indent++;
		}

		void eventSource_ProjectFinished(object sender, ProjectFinishedEventArgs e)
		{
			// The regular message string is good enough here too.
			indent--;
			WriteLine(String.Empty, e);
		}
		
		/// <summary>
		/// Write a line to the log, adding the SenderName and Message
		/// (these parameters are on all MSBuild event argument objects)
		/// </summary>
		private void WriteLineWithSenderAndMessage(string line, BuildEventArgs e)
		{
			if (0 == String.Compare(e.SenderName, "MSBuild", true /*ignore case*/))
			{
				// Well, if the sender name is MSBuild, let's leave it out for prettiness
				WriteLine(line, e);
			}
			else
			{
				WriteLine(e.SenderName + ": " + line, e);
			}
		}
		
		/// <summary>
		/// Just write a line to the log
		/// </summary>
		private void WriteLine(string line, BuildEventArgs e)
		{
			for (int i = indent; i > 0; i--)
			{
				streamWriter.Write("\t");
			}
			streamWriter.WriteLine(line + e.Message);
		}
		
		/// <summary>
		/// Shutdown() is guaranteed to be called by MSBuild at the end of the build, after all 
		/// events have been raised.
		/// </summary>
		public override void Shutdown()
		{
			// Done logging, let go of the file
			streamWriter.Close();
		}

		private StreamWriter streamWriter;
		private int indent;
	}
}

Hinweise

Diese Ausnahme kann durch eine Protokollierung verwendet werden, auf einen Host an, wenn sie ungültige Parameter empfangen hat, oder Protokollierung aus irgendeinem Grund kann nicht fortgesetzt, und auf kontrollierte Weise beenden möchte.This exception can be used by a logger to indicate to a host that it has received invalid parameters, or can no longer continue logging for some reason, and wants to stop in a controlled way.

Konstruktoren

LoggerException() LoggerException() LoggerException() LoggerException()

Initialisiert eine neue Instanz der LoggerException-Klasse.Initializes a new instance of the LoggerException class.

LoggerException(SerializationInfo, StreamingContext) LoggerException(SerializationInfo, StreamingContext) LoggerException(SerializationInfo, StreamingContext) LoggerException(SerializationInfo, StreamingContext)

Initialisiert eine neue Instanz der LoggerException-Klasse mit den angegebenen Werten.Initializes a new instance of the LoggerException class with the values specified.

LoggerException(String) LoggerException(String) LoggerException(String) LoggerException(String)

Initialisiert eine neue Instanz der LoggerException-Klasse mit den angegebenen Werten.Initializes a new instance of the LoggerException class with the specified values.

LoggerException(String, Exception) LoggerException(String, Exception) LoggerException(String, Exception) LoggerException(String, Exception)

Initialisiert eine neue Instanz der LoggerException-Klasse mit den angegebenen Werten.Initializes a new instance of the LoggerException class with the values specified.

LoggerException(String, Exception, String, String) LoggerException(String, Exception, String, String) LoggerException(String, Exception, String, String) LoggerException(String, Exception, String, String)

Initialisiert eine neue Instanz der LoggerException-Klasse mit den angegebenen Werten.Initializes a new instance of the LoggerException class with the values specified.

Eigenschaften

Data Data Data Data

Ruft eine Auflistung von Schlüssel-Wert-Paaren ab, die zusätzliche benutzerdefinierte Informationen über die Ausnahme bereitstellen.Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception)
ErrorCode ErrorCode ErrorCode ErrorCode

Ruft den dieser Ausnahmemeldung zugeordneten Fehlercode ab.Gets the error code associated with this exception's message.

HelpKeyword HelpKeyword HelpKeyword HelpKeyword

Ruft das diesem Fehler zugeordnete F1-Hilfeschlüsselwort ab.Gets the F1-help keyword associated with this error.

HelpLink HelpLink HelpLink HelpLink

Ruft einen Link zur Hilfedatei ab, die dieser Ausnahme zugeordnet ist, oder legt einen Link fest.Gets or sets a link to the help file associated with this exception.

(Inherited from Exception)
HResult HResult HResult HResult

Ruft HRESULT ab oder legt HRESULT fest. Dies ist ein codierter Wert, der einer bestimmten Ausnahme zugeordnet ist.Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Inherited from Exception)
InnerException InnerException InnerException InnerException

Ruft die Exception-Instanz ab, die die aktuelle Ausnahme verursacht hat.Gets the Exception instance that caused the current exception.

(Inherited from Exception)
Message Message Message Message

Ruft eine Meldung ab, die die aktuelle Ausnahme beschreibt.Gets a message that describes the current exception.

(Inherited from Exception)
Source Source Source Source

Gibt den Namen der Anwendung oder des Objekts zurück, die bzw. das den Fehler verursacht hat, oder legt diesen fest.Gets or sets the name of the application or the object that causes the error.

(Inherited from Exception)
StackTrace StackTrace StackTrace StackTrace

Ruft eine Zeichenfolgendarstellung der unmittelbaren Frames in der Aufrufliste ab.Gets a string representation of the immediate frames on the call stack.

(Inherited from Exception)
TargetSite TargetSite TargetSite TargetSite

Ruft die Methode ab, die die aktuelle Ausnahme auslöst.Gets the method that throws the current exception.

(Inherited from Exception)

Methoden

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Bestimmt, ob das angegebene Objekt mit dem aktuellen Objekt identisch ist.Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBaseException() GetBaseException() GetBaseException() GetBaseException()

Gibt beim Überschreiben in einer abgeleiteten Klasse eine Exception zurück, die die ursprüngliche Ursache für eine oder mehrere nachfolgende Ausnahmen ist.When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(Inherited from Exception)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Fungiert als Standardhashfunktion.Serves as the default hash function.

(Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext)

Legt SerializationInfo mit Informationen zur Ausnahme fest.Sets the SerializationInfo with information about the exception.

GetType() GetType() GetType() GetType()

Ruft den Laufzeittyp der aktuellen Instanz ab.Gets the runtime type of the current instance.

(Inherited from Exception)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Erstellt eine flache Kopie des aktuellen Object.Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Erstellt eine Zeichenfolgendarstellung der aktuellen Ausnahme und gibt diese zurück.Creates and returns a string representation of the current exception.

(Inherited from Exception)

Ereignisse

SerializeObjectState SerializeObjectState SerializeObjectState SerializeObjectState

Tritt auf, wenn eine Ausnahme serialisiert wird, um ein Ausnahmezustandsobjekt mit serialisierten Daten über die Ausnahme zu erstellen.Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(Inherited from Exception)

Gilt für: