private List <IConverter> CreateConverters(string key, SourceTargetMapping mapping)
{
var converters = new List <IConverter>();
foreach (var targetConverter in mapping.TargetConverters)
{
if (targetConverter.LeftSideMap != null && targetConverter.LeftSideMap.ContainsKey(key))
{
var config = new ConverterConfiguration()
{
Id = targetConverter.Id,
CombineInputOutput = targetConverter.CombineInputOutput,
NestOutput = targetConverter.NestOutput,
LeftSideMap = targetConverter.LeftSideMap,
Properties = (targetConverter.Properties.Count > 0) ? targetConverter.Properties : mapping.Properties,
PipedConverters = converters,
Mapping = mapping
};
IConverter converter = CollectorFactory.CloneConverter(Converters[targetConverter.Id]);
if (converter != null)
{
converter.Configure(config);
converters.Add(converter);
}
}
}
return(converters);
}
/// <summary>
/// Convert an entire row of data.
/// </summary>
/// <param name="dataRow">The row to convert</param>
/// <returns>The converted row.</returns>
public Dictionary <string, object> ConvertDataRow(SourceTargetMapping mapping, IEntityCollection dataRow)
{
var mappedRow = new Dictionary <string, object>();
// Convert the data points...
foreach (var dataPoint in dataRow.Entities)
{
var convertedDataPoints = ConvertDataPoint(mapping, dataPoint, dataRow);
if (convertedDataPoints != null)
{
foreach (var convertedDataPoint in convertedDataPoints)
{
// Last conversion wins
if (mappedRow.ContainsKey(convertedDataPoint.Key))
{
mappedRow[convertedDataPoint.Key] = convertedDataPoint.Value;
}
else
{
mappedRow.Add(convertedDataPoint.Key, convertedDataPoint.Value);
}
}
}
}
return(mappedRow);
}
/// <summary>
/// Convert a single data point.
/// </summary>
/// <param name="dataPoint">The data point to convert</param>
/// <param name="dataRow">The associated row data points</param>
/// <returns>A dictionary of converted data.</returns>
public Dictionary <string, object> ConvertDataPoint(SourceTargetMapping mapping, KeyValuePair <string, object> dataPoint, IEntityCollection dataRowIn)
{
Dictionary <string, object> result = null;
if (mapping != null)
{
// create any converters that are targeting this data point.
var converters = CreateConverters(dataPoint.Key, mapping);
// make our local copy of the data row, we may need to manipulate it for nested conversions.
var dataRow = new EntityCollection();
foreach (var e in dataRowIn.Entities)
{
dataRow.Entities.Add(e.Key, e.Value);
}
Dictionary <string, object> convertedDataPoints = null;
foreach (var converter in converters)
{
var config = GetConverterConfiguration(converter.Id, mapping.TargetConverters);
var convertedDataPointsOut = converter.Convert(dataPoint, dataRow);
convertedDataPoints = CombineData(config, convertedDataPoints, convertedDataPointsOut);
result = convertedDataPoints;
if (!config.Pipe)
{
break;
}
}
}
return(result);
}
/// <summary>
/// Configure the converter.
/// </summary>
/// <param name="config">The converter configuration.</param>
public void Configure(ConverterConfiguration config)
{
_id = config.Id;
_combineInputOutput = config.CombineInputOutput;
_nestOutput = config.NestOutput;
_leftSideMap = config.LeftSideMap;
_properties = config.Properties;
_mapping = config.Mapping;
_pipedConverters = config.PipedConverters;
}
public void PipedConverters_PipedArray_Success()
{
// Use Case: A data point contains an array of objects (software items).
// The PipedArrayConverter uses reflection to get each field, convert the field based on
// the configured converters for the associated source target mapping.
// The converter returns a dictionary of dictionaries based on an id.
// The id is determined in the SourceTargetConverter property "ArrayKey".
// The property "PrefixId" means to prefix the id with the "ArrayKey", i.e. "Id_XXX"
// where XXX is the Id field of the software.
var items = CreateMockSoftwareArray();
var row = new EntityCollection();
row.Entities.Add("Items", items);
var properties = new Dictionary <string, string>();
properties.Add("ArrayKey", "Id");
properties.Add("PrefixId", "true");
var targetConverters = new List <SourceTargetConverter>();
var mapping = new SourceTargetMapping()
{
//PipeData = true,
Properties = properties,
PrimaryKey = "Items",
TargetConverters = targetConverters
};
var noOpConverter = new NoOpConverter();
var leftSideMap = new Dictionary <string, List <string> >();
leftSideMap.Add("Id", new List <string>()
{
"Id"
});
leftSideMap.Add("Title", new List <string>()
{
"Title"
});
leftSideMap.Add("DateTime", new List <string>()
{
"DateTime"
});
var noOpConfig = new ConverterConfiguration()
{
Id = "1",
LeftSideMap = leftSideMap
};
noOpConverter.Configure(noOpConfig);
var converters = new List <IConverter>();
converters.Add(noOpConverter);
var converter = new PipedArrayConverter();
converters.Add(converter);
var config = new ConverterConfiguration()
{
Id = "2",
Mapping = mapping,
PipedConverters = converters,
Properties = properties
};
converter.Configure(config);
var convertedData = converter.Convert(new KeyValuePair <string, object>("Items", items), row);
convertedData.Count.Should().Be(2);
foreach (var id in convertedData.Keys)
{
if (id.Contains("_pkAttrName"))
{
continue;
}
var software = convertedData[id] as List <object>;
var software0 = software[0] as Dictionary <string, object>;
software0["Id"].Should().Be("1");
software0["Title"].Should().Be("Some Software Title #1");
software0["DateTime"].Should().NotBeNull();
var software1 = software[1] as Dictionary <string, object>;
software1["Id"].Should().Be("2");
software1["Title"].Should().Be("Some Software Title #2");
software1["DateTime"].Should().NotBeNull();
}
}