public float CompareRecords(object obj1, object obj2, CompareDefinitionGroup compareDefinitionGroup, out string explainPlan)
{
if (obj1 == null)
{
throw new ArgumentNullException("obj1");
}
if (obj2 == null)
{
throw new ArgumentNullException("obj2");
}
var record1 = new Dictionary <string, string>();
var record2 = new Dictionary <string, string>();
if (compareDefinitionGroup == null)
{
// build a group from annotations
compareDefinitionGroup = this.GenerateCompareDefinitionGroup(obj1);
}
// get values
foreach (var compareDefinition in compareDefinitionGroup.CompareDefinitions)
{
foreach (var compareField in compareDefinition.CompareFields)
{
var value1 = ReflectionUtil.GetPropertyValue(obj1, compareField.Name1);
record1.Add(compareField.Name1, value1.ToStringOrEmpty());
var value2 = ReflectionUtil.GetPropertyValue(obj2, compareField.Name2);
record2.Add(compareField.Name2, value2.ToStringOrEmpty());
}
}
return(this.CompareRecords(record1, record2, compareDefinitionGroup, out explainPlan));
}
public void SaveCompareDefinitionGroup(string fileName, CompareDefinitionGroup compareDefinitionGroup)
{
var serializer = new XmlSerializerHelper <CompareDefinitionGroup>();
serializer.FileName = fileName;
serializer.Save(compareDefinitionGroup);
}
private CompareDefinitionGroup GenerateCompareDefinitionGroup(object obj1)
{
var compareDefinitionGroup = new CompareDefinitionGroup();
// read atrribute on Class
var matchingAttr = obj1.GetType().GetCustomAttributes(typeof(MatchingAttribute), false).FirstOrDefault() as MatchingAttribute;
if (matchingAttr != null)
{
compareDefinitionGroup.Aggregator = (Aggregator)Activator.CreateInstance(matchingAttr.Aggregator);
}
foreach (var prop in obj1.GetType().GetProperties())
{
var fieldAttr = prop.GetCustomAttributes(typeof(MatchingFieldAttribute), false).FirstOrDefault() as MatchingFieldAttribute;
if (fieldAttr != null)
{
// CompareDefinition
var compareDef = compareDefinitionGroup.CompareDefinitions.FirstOrDefault(x => x.Name == fieldAttr.CompareDefinition);
if (compareDef == null)
{
compareDef = new CompareDefinition()
{
Name = fieldAttr.CompareDefinition
};
compareDefinitionGroup.CompareDefinitions.Add(compareDef);
}
// CompareField
var compareField = compareDef.CompareFields.FirstOrDefault(x => x.Name1 == prop.Name);
if (compareField == null)
{
compareField = new CompareField()
{
Name1 = prop.Name,
Name2 = prop.Name,
FuzzyComparer = (StringFuzzyComparer)Activator.CreateInstance(fieldAttr.FuzzyComparer)
};
compareDef.CompareFields.Add(compareField);
}
}
}
return(compareDefinitionGroup);
}
private void buttonMatch_Click(object sender, EventArgs e)
{
string explainPlan = "";
float result = 0.0f;
if (this.chkToogleMode.Checked)
{
// Comparedefinition is extracted from the dataannotations on the properties
result = MatchingService.Instance.CompareRecords(this.adr1, this.adr2, null, out explainPlan);
}
else
{
// create a Comparedefintion for the dynmaic data
var defGroup = new CompareDefinitionGroup()
{
Aggregator = new MaximumAggregator(),
CompareDefinitions = new List <CompareDefinition>()
{
new CompareDefinition()
{
Name = "AddressDefinition",
Aggregator = new AverageAggregator(),
CompareFields = new List <CompareField>()
{
new CompareField()
{
Name1 = "Firstname",
Name2 = "Firstname",
FuzzyComparer = new NameComparer()
},
new CompareField()
{
Name1 = "Surname",
Name2 = "Surname",
FuzzyComparer = new NameComparer()
},
new CompareField()
{
Name1 = "Street",
Name2 = "Street",
FuzzyComparer = new DamerauLevenshteinDistance()
},
new CompareField()
{
Name1 = "Zip",
Name2 = "Zip",
FuzzyComparer = new Identity()
},
new CompareField()
{
Name1 = "City",
Name2 = "City",
FuzzyComparer = new CityComparer()
},
new CompareField()
{
Name1 = "Phone",
Name2 = "Phone",
FuzzyComparer = new PhoneComparer()
}
}
}
}
};
var record1 = new Dictionary <string, string>()
{
{ "Firstname", this.adr1.Firstname },
{ "Surname", this.adr1.Surname },
{ "Street", this.adr1.Street },
{ "Zip", this.adr1.Zip },
{ "City", this.adr1.City },
{ "Phone", this.adr1.Phone }
};
var record2 = new Dictionary <string, string>()
{
{ "Firstname", this.adr2.Firstname },
{ "Surname", this.adr2.Surname },
{ "Street", this.adr2.Street },
{ "Zip", this.adr2.Zip },
{ "City", this.adr2.City },
{ "Phone", this.adr2.Phone }
};
result = MatchingService.Instance.CompareRecords(record1, record2, defGroup, out explainPlan);
}
this.txtSimiliarity.Text = result.ToString();
this.txtExplainPlan.Text = explainPlan;
}
public float CompareRecords(DataTable table1, DataTable table2, CompareDefinitionGroup compareDefinitionGroup, out string explainPlan)
{
explainPlan = "";
if (table1 == null)
{
throw new ArgumentNullException("table1");
}
if (table2 == null)
{
throw new ArgumentNullException("table2");
}
if (compareDefinitionGroup == null)
{
throw new ArgumentNullException("compareDefinitionGroup");
}
if (compareDefinitionGroup.CompareDefinitions == null)
{
throw new ArgumentNullException("compareDefinitionGroup.CompareDefinitions");
}
var matchScores = new List <float>();
float finalMatchScore = 0;
table1.Columns.Add("Key");
table2.Columns.Add("Key");
var compareAlgorithm = GenericFactory.GetInstance <CompareAlgorithm>("SortedNeighborHood");
compareAlgorithm.Table1 = table1;
compareAlgorithm.Table2 = table2;
// no comparedefinition, generate a comparedefinition with all fields
if (!compareDefinitionGroup.CompareDefinitions.Any())
{
var compareDefinition = this.GenerateDefaultCompareDefinition(table1, table2);
compareDefinitionGroup.CompareDefinitions.Add(compareDefinition);
}
foreach (var compareDefinition in compareDefinitionGroup.CompareDefinitions)
{
compareAlgorithm.Matches.Clear();
compareAlgorithm.PossibleMatches.Clear();
compareAlgorithm.RowComparer.CompareDefinition = compareDefinition;
compareAlgorithm.KeyFields1.Clear();
compareAlgorithm.KeyFields1.Add("Key");
compareAlgorithm.KeyFields2.Clear();
compareAlgorithm.KeyFields2.Add("Key");
compareAlgorithm.MatchLimit = 0;
compareAlgorithm.PossibleMatchLimit = 0;
compareAlgorithm.Execute();
var match = compareAlgorithm.Matches.First();
explainPlan = explainPlan.Append("-----Group: " + compareDefinition.Name + "------");
var explainations = compareAlgorithm.RowComparer.Explain(match.From.Value, match.To.Value);
explainPlan = explainPlan.Append(string.Join(Environment.NewLine, explainations));
explainPlan = explainPlan.Append("Result = " + match.Cost + " (" + compareDefinition.Aggregator.ToStringOrEmpty() + ")");
explainPlan = explainPlan.Append("----------------------------------------");
matchScores.Add((float)match.Cost);
}
finalMatchScore = compareDefinitionGroup.Aggregator.AggregatedSimilarity(matchScores.ToArray());
explainPlan = explainPlan.Append("final result = " + finalMatchScore + " (" + compareDefinitionGroup.Aggregator.ToStringOrEmpty() + ")");
return(finalMatchScore);
}
public float CompareRecords(Dictionary <string, string> record1, Dictionary <string, string> record2, CompareDefinitionGroup compareDefinitionGroup, out string explainPlan)
{
if (record1 == null)
{
throw new ArgumentNullException("record1");
}
if (record2 == null)
{
throw new ArgumentNullException("record2");
}
var table1 = record1.ToDataTable();
var table2 = record2.ToDataTable();
return(this.CompareRecords(table1, table2, compareDefinitionGroup, out explainPlan));
}
private void BtnCheckDoublets_Click(object sender, RoutedEventArgs e)
{
// create a Comparedefintion for the dynmaic data
var defGroup = new CompareDefinitionGroup()
{
Aggregator = new MaximumAggregator(),
CompareDefinitions = new List <CompareDefinition>()
{
new CompareDefinition()
{
Name = "AddressDefinition",
Aggregator = new AverageAggregator(),
CompareFields = new List <CompareField>()
{
new CompareField()
{
Name1 = "Firstname",
Name2 = "Firstname",
FuzzyComparer = new NameComparer()
},
new CompareField()
{
Name1 = "Surname",
Name2 = "Surname",
FuzzyComparer = new NameComparer()
},
new CompareField()
{
Name1 = "Street",
Name2 = "Street",
FuzzyComparer = new DamerauLevenshteinDistance()
},
new CompareField()
{
Name1 = "Zip",
Name2 = "Zip",
FuzzyComparer = new Identity()
},
new CompareField()
{
Name1 = "City",
Name2 = "City",
FuzzyComparer = new CityComparer()
},
new CompareField()
{
Name1 = "Phone",
Name2 = "Phone",
FuzzyComparer = new PhoneComparer()
}
}
}
}
};
var record1 = new Dictionary <string, string>()
{
{ "Firstname", this.adr1.Firstname },
{ "Surname", this.adr1.Surname },
{ "Street", this.adr1.Street },
{ "Zip", this.adr1.Zip },
{ "City", this.adr1.City },
{ "Phone", this.adr1.Phone }
};
var record2 = new Dictionary <string, string>()
{
{ "Firstname", this.adr2.Firstname },
{ "Surname", this.adr2.Surname },
{ "Street", this.adr2.Street },
{ "Zip", this.adr2.Zip },
{ "City", this.adr2.City },
{ "Phone", this.adr2.Phone }
};
this.txtResult.Text = "";
string sessionKey = this.matchingWebServiceClient.CreateSession("nobody", "123456");
if (!string.IsNullOrEmpty(sessionKey))
{
var result = this.matchingWebServiceClient.CompareRecords(sessionKey, record1, record2, defGroup);
this.matchingWebServiceClient.CloseSession(sessionKey);
this.txtResult.Text = this.adr1.ToString() + Environment.NewLine +
Environment.NewLine +
this.adr2.ToString() + Environment.NewLine +
"Result=" + result;
}
else
{
this.txtResult.Text = "No session.";
}
}
public float CompareRecords(string sessionKey, Dictionary <string, string> record1, Dictionary <string, string> record2, CompareDefinitionGroup compareDefinitionGroup)
{
string errorMsg = Authenticator.Instance.ValidateSession(sessionKey);
if (!string.IsNullOrEmpty(errorMsg))
{
return(-1);
}
string explainPlan = "";
return(MatchingService.Instance.CompareRecords(record1.CastToGenericDictionary(),
record2.CastToGenericDictionary(),
compareDefinitionGroup, out explainPlan));
}