me.piggypiglet.framework.mapper

Class LevenshteinObjectMapper<T>

java.lang.Object

me.piggypiglet.framework.mapper.LevenshteinObjectMapper<T>

All Implemented Interfaces:

ObjectMapper<java.util.Map<java.lang.String,java.lang.Object>,T>

public abstract class LevenshteinObjectMapper<T>
extends java.lang.Object
implements ObjectMapper<java.util.Map<java.lang.String,java.lang.Object>,T>

Intelligent object mapper that utilises the levenshtein distance algorithm via a port of python's fuzzywuzzy library to map values to fields based on "roughly the same" field names. There's no limit on how similar/unsimilar a name must be for it to be mapped, the mapper will simply pick the closest match.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	LevenshteinObjectMapper() Same as LevenshteinObjectMapper(Class<T>) but uses reflection to fetch the class from the generic.
protected	LevenshteinObjectMapper(java.lang.Class<T> clazz) Create an instance of LevenshteinObjectMapper and cache important data.

Method Summary

Modifier and Type	Method and Description
T	dataToType(java.util.Map<java.lang.String,java.lang.Object> data) Convert a map (String, Object) into an instance of T.
java.util.Map<java.lang.String,java.lang.Object>	typeToData(T type) Convert an instance of T to a map with KV String, Object, with K representing field names and V their respective values.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LevenshteinObjectMapper

protected LevenshteinObjectMapper()

Same as LevenshteinObjectMapper(Class<T>) but uses reflection to fetch the class from the generic.

LevenshteinObjectMapper

protected LevenshteinObjectMapper(java.lang.Class<T> clazz)

Create an instance of LevenshteinObjectMapper and cache important data. Provide the class reference to save time on initialisation.

Parameters:

clazz - Class data will be mapped to and from

Method Detail

dataToType

public final T dataToType(java.util.Map<java.lang.String,java.lang.Object> data)

Convert a map (String, Object) into an instance of T. Uses the levenshtein algorithm to find the field names that are the closest to the ones provided.

Specified by:

dataToType in interface ObjectMapper<java.util.Map<java.lang.String,java.lang.Object>,T>

Parameters:

data - Map of field names (rough) and values

Returns:

instance of T

typeToData

public final java.util.Map<java.lang.String,java.lang.Object> typeToData(T type)

Convert an instance of T to a map with KV String, Object, with K representing field names and V their respective values.

Specified by:

typeToData in interface ObjectMapper<java.util.Map<java.lang.String,java.lang.Object>,T>

Parameters:

type - Value of type T

Returns:

Map - Key: String, Value: Object