init

Common/DTS.Common.Utilities/.svn/pristine/ee/ee23cdb2b4f27cff0beb26eda2c29de0412c42f4.svn-base

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace DTS.Common.Utilities
+{
+    public sealed class KeywordAlert
+    {
+        public static KeywordAlert Instance { get; } = new KeywordAlert();
+
+        private List<string> alerts = null;
+
+        private const string KeywordFile = "Keywords.txt";
+        private KeywordAlert()
+        {
+            try
+            {
+                if (System.IO.File.Exists(KeywordFile))
+                {
+                    alerts = new List<string>(System.IO.File.ReadAllLines(KeywordFile));
+                }
+            }
+            catch (System.Exception) { }
+        }
+
+        public void ProcessMsg(string msg)
+        {
+            if (null != alerts)
+            {
+                System.Threading.ThreadPool.QueueUserWorkItem(new System.Threading.WaitCallback(DoWork), msg);
+            }
+        }
+        private void DoWork(object o)
+        {
+            var msg = o as string;
+            var keys = alerts.ToArray();//avoid accessing the list since many threads may be operating simultaneously
+
+            var matches = from k in keys.AsParallel() where msg.Contains(k) select k;
+            if (matches.Any())
+            {
+                var foundKeys = string.Join(", ", matches.ToArray());
+            }
+        }
+    }
+}

Common/DTS.Common.Utilities/.svn/pristine/ee/eee74929c6d15a64e545db698889de84e133dfdf.svn-base

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+/*
+Math.Nhtsa.Differentiation.cs
+
+24 November 2009 - Adapted from old Dave codebase to generic DTS utility, with 
+                   appropriate name change. 
+
+$Log: Math.Nhtsa.ChannelDifferentiation.cs,v $
+Revision 1.2  2007/04/20 17:40:42  Paul Hrissikopoulos
+Fixed bad range checking in sample rate property set accessor.
+
+Revision 1.1  2007/02/05 17:17:08  Paul Hrissikopoulos
+Finished installing generic channel math framework + basic calculus operations.
+
+Copyright © 2007
+Diversified Technical Systems, Inc.
+All Rights Reserved
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using DTS.Common.Utilities.DotNetProgrammingConstructs;
+
+namespace DTS.Common.Utilities.Math.Nhtsa
+{
+    ////////////////////////////////////////////////////////////////////////////////
+    /// <summary>
+    /// Representation of a NHTSA-based differentiation channel operation.
+    /// </summary>
+    public class Differentiation : DoubleListOperation
+    {
+        ////////////////////////////////////////////////////////////////////////////////
+        /// <summary>
+        /// Get/set the sample rate for this data to be differentiated.
+        /// </summary>
+        public double SampleRate
+        {
+            get => _SampleRate.Value;
+            set => _SampleRate.Value = value;
+        }
+        private Property<double> _SampleRate
+            = new Property<double>(
+                typeof(Differentiation).FullName + ".SampleRate",
+                0.0,
+                false
+            );
+        ////////////////////////////////////////////////////////////////////////////////
+
+        ////////////////////////////////////////////////////////////////////////////////
+        /// <summary>
+        /// Initialize an instance of the ChannelDifferentiation class.
+        /// </summary>
+        /// 
+        /// <param name="domain">
+        /// The System.Collections.Generic.IList of <see cref="double"/> domain for
+        /// this operation.
+        /// </param>
+        /// 
+        public Differentiation(IList<double> domain)
+            : base(domain)
+        {   //
+            // I'd prefer to do this statically, but I don't know of any C# way to place a constraint
+            // on a generic type that's already been determined by some ancestor we're inheriting from,
+            // so for now we'll have to dynamically check it on object instantiation.
+            //
+            if (!(domain is ICloneable))
+                throw new InvalidCastException("the domain type for " + typeof(Differentiation).FullName + " must be ICloneable");
+        }
+        ////////////////////////////////////////////////////////////////////////////////
+
+        ////////////////////////////////////////////////////////////////////////////////
+        /// <summary>
+        /// Initialize an instance of the Iso.ChannelDifferentiation class.
+        /// </summary>
+        ///
+        /// <param name="domain">
+        /// The System.Collections.Generic.IList of <see cref="double"/> domain for
+        /// this operation.
+        /// </param>
+        /// 
+        /// <param name="sampleRate">
+        /// The <see cref="int"/> sample rate of the channel to be differentiated.
+        /// </param>
+        /// 
+        public Differentiation(IList<double> domain, int sampleRate)
+            : this(domain)
+        {
+            try { SampleRate = sampleRate; }
+            catch (System.Exception ex)
+            {
+                throw new Exception("encountered problem constructing " + GetType().FullName, ex);
+            }
+        }
+        ////////////////////////////////////////////////////////////////////////////////
+
+        ////////////////////////////////////////////////////////////////////////////////
+        /// <summary>
+        /// Get the System.Collections.Generic.IList of <see cref="double"/> result of
+        /// the operation on the target domain.
+        /// </summary>
+        public override IList<double> Range
+        {
+            get
+            {
+                try
+                {
+                    if (null == Domain)
+                        throw new ArgumentNullException("attempted to differentiate null channel reference");
+
+                    else if (0 >= SampleRate)
+                        throw new ArgumentOutOfRangeException("SampleRate must be greater than zero");
+
+                    else if (!(Domain is ICloneable))
+                        throw new InvalidCastException("the domain type for " + typeof(Differentiation).FullName + " must be ICloneable");
+
+                    else
+                    {
+                        var IndexOfLastSample = Domain.Count - 1;
+                        var deltaT = SampleRate / 2;
+                        var range = ((ICloneable)Domain).Clone() as IList<double>;
+
+                        for (var t = 1; t < IndexOfLastSample; t++)
+                            range[t] = (Domain[t + 1] - Domain[t - 1]) * deltaT;
+
+                        range[0] = (-7 * Domain[0]
+                                      + 6 * Domain[1]
+                                      + 3 * Domain[2]
+                                      - 2 * Domain[3]) * deltaT / 3;
+
+                        range[IndexOfLastSample] = (-7 * Domain[IndexOfLastSample]
+                                                      + 6 * Domain[IndexOfLastSample - 1]
+                                                      + 3 * Domain[IndexOfLastSample - 2]
+                                                      - 2 * Domain[IndexOfLastSample - 3]) * deltaT / 3;
+                        return range;
+                    }
+                }
+
+                catch (System.Exception ex)
+                {
+                    throw new Exception("encountered problem doing " + GetType().FullName + " operation", ex);
+                }
+            }
+        }
+        ////////////////////////////////////////////////////////////////////////////////
+    }
+    ////////////////////////////////////////////////////////////////////////////////
+}