98 lines
2.9 KiB
C#
98 lines
2.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Text;
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using Microsoft.Deployment.WindowsInstaller;
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namespace PdfScribeInstallCustomAction
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{
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public class SessionLogWriterTraceListener : TextWriterTraceListener , IDisposable
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{
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protected MemoryStream listenerStream;
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protected Session installSession;
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private bool isDisposed;
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public SessionLogWriterTraceListener(Session session)
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: base()
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{
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this.listenerStream = new MemoryStream();
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this.Writer = new StreamWriter(this.listenerStream);
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this.installSession = session;
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}
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#region IDisposable impelementation
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/// <summary>
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/// Releases resources held by the listener -
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/// will not automatically flush and write
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/// trace data to the install session log -
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/// call CloseAndWriteLog() before disposing
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/// to ensure data is written
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/// </summary>
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public new void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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protected virtual void Dipose(bool disposing)
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{
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if (!this.isDisposed)
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{
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if (disposing)
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{
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if (this.Writer != null)
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{
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this.Writer.Close();
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this.Writer.Dispose();
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this.Writer = null;
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}
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if (this.listenerStream != null)
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{
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this.listenerStream.Close();
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this.listenerStream.Dispose();
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this.listenerStream = null;
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}
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if (this.installSession != null)
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this.installSession = null;
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}
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this.isDisposed = true;
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}
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base.Dispose(disposing);
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}
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#endregion
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/// <summary>
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/// Closes the listener and writes accumulated
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/// trace data to the install session's log (Session.Log)
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/// The listener should not be used after calling
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/// this method, and should be disposed of.
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/// </summary>
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public void CloseAndWriteLog()
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{
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if (this.listenerStream != null &&
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this.installSession != null)
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{
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this.Flush();
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if (this.listenerStream.Length > 0)
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{
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listenerStream.Position = 0;
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using (StreamReader listenerStreamReader = new StreamReader(this.listenerStream))
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{
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this.installSession.Log(listenerStreamReader.ReadToEnd());
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}
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}
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this.Close();
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this.Dispose();
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this.installSession = null;
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}
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}
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}
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}
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