ConfigViewGenerator.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / ConfigViewGenerator.cs / 1305376 / ConfigViewGenerator.cs

                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System.Data.Common.Utils; 
using System.Text;
using System.Diagnostics;

namespace System.Data.Mapping.ViewGeneration 
{
 
    internal enum ViewGenerationMode 
    {
        GenerateAllViews = 0, 
        OfTypeViews,
        OfTypeOnlyViews
    }
 
    internal enum ViewGenTraceLevel
    { 
        None = 0, 
        ViewsOnly,
        Normal, 
        Verbose
    }

    internal enum PerfType 
    {
        InitialSetup = 0, 
        CellCreation, 
        KeyConstraint,
        ViewgenContext, 
        UpdateViews,
        DisjointConstraint,
        PartitionConstraint,
        DomainConstraint, 
        ForeignConstraint,
        QueryViews, 
        BoolResolution, 
        Unsatisfiability,
        ViewParsing, 
    }

    // This class holds some configuration information for the view
    // generation code 
    internal class ConfigViewGenerator : InternalBase
    { 
        #region Constructors 
        internal ConfigViewGenerator()
        { 
            m_watch = new Stopwatch();
            m_singleWatch = new Stopwatch();
            int numEnums = Enum.GetNames(typeof(PerfType)).Length;
            m_breakdownTimes = new TimeSpan[numEnums]; 
            TraceLevel = ViewGenTraceLevel.None;
            GenerateViewsForEachType = false; 
            StartWatch(); 
        }
        #endregion 

        #region Fields
        private bool m_generateViewsForEachType;
        private ViewGenTraceLevel m_traceLevel; 
        private TimeSpan[] m_breakdownTimes;
        private Stopwatch m_watch; 
        private Stopwatch m_singleWatch; // To measure a single thing at a time 
        private PerfType m_singlePerfOp; // Perf op being measured
        private bool m_enableValidation = true; 
        private bool m_generateUpdateViews = true;
        #endregion

        #region Properties 
        // Callers can set elements in this list
        internal TimeSpan[] BreakdownTimes 
        { 
            get { return m_breakdownTimes; }
        } 

        internal ViewGenTraceLevel TraceLevel
        {
            get { return m_traceLevel; } 
            set { m_traceLevel = value; }
        } 
 
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
        internal bool IsValidationEnabled 
        {
            get { return m_enableValidation; }
            set { m_enableValidation = value; }
        } 

        internal bool GenerateUpdateViews 
        { 
            get { return m_generateUpdateViews; }
            set { m_generateUpdateViews = value; } 
        }

        internal bool GenerateViewsForEachType
        { 
            get { return m_generateViewsForEachType; }
            set { m_generateViewsForEachType = value; } 
        } 

        internal bool IsViewTracing 
        {
            get { return IsTraceAllowed(ViewGenTraceLevel.ViewsOnly); }
        }
 
        internal bool IsNormalTracing
        { 
            get { return IsTraceAllowed(ViewGenTraceLevel.Normal); } 
        }
 
        internal bool IsVerboseTracing
        {
            get { return IsTraceAllowed(ViewGenTraceLevel.Verbose); }
        } 
        #endregion
 
        #region Methods 
        private void StartWatch()
        { 
            m_watch.Start();
        }

        internal void StartSingleWatch(PerfType perfType) 
        {
            m_singleWatch.Start(); 
            m_singlePerfOp = perfType; 
        }
 
        // effects: Sets time for perfType for the individual timer
        internal void StopSingleWatch(PerfType perfType)
        {
            Debug.Assert(m_singlePerfOp == perfType, "Started op for different activity " + m_singlePerfOp + " -- not " + perfType); 
            TimeSpan timeElapsed = m_singleWatch.Elapsed;
            int index = (int)perfType; 
            m_singleWatch.Stop(); 
            m_singleWatch.Reset();
            BreakdownTimes[index] = BreakdownTimes[index].Add(timeElapsed); 
        }

        // effects: Sets time for perfType since the last call to SetTimeForActivity
        internal void SetTimeForFinishedActivity(PerfType perfType) 
        {
            TimeSpan timeElapsed = m_watch.Elapsed; 
            int index = (int)perfType; 
            BreakdownTimes[index] = BreakdownTimes[index].Add(timeElapsed);
            // Trace.WriteLine(perfType + " " + timeElapsed.TotalSeconds); 
            m_watch.Reset();
            m_watch.Start();
        }
 
        // effects: Returns true if this's traceLevel is at least traceLevel
        internal bool IsTraceAllowed(ViewGenTraceLevel traceLevel) 
        { 
            return TraceLevel >= traceLevel;
        } 

        internal override void ToCompactString(StringBuilder builder)
        {
            StringUtil.FormatStringBuilder(builder, "Trace Switch: {0}", m_traceLevel); 
        }
        #endregion 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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