MapperBiInstantiatorFactory.java example

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SimpleFlatMapper-master
package org.simpleflatmapper.map.mapper;

import org.simpleflatmapper.map.FieldKey;
import org.simpleflatmapper.map.MappingContext;
import org.simpleflatmapper.reflect.BiInstantiator;
import org.simpleflatmapper.reflect.Getter;
import org.simpleflatmapper.reflect.InstantiatorDefinition;
import org.simpleflatmapper.reflect.InstantiatorFactory;
import org.simpleflatmapper.reflect.Parameter;
import org.simpleflatmapper.reflect.getter.GetterFactory;
import org.simpleflatmapper.reflect.instantiator.GetterBiInstantiator;
import org.simpleflatmapper.util.BiFunction;
import org.simpleflatmapper.util.ForEachCallBack;
import org.simpleflatmapper.util.TypeHelper;

import java.lang.reflect.Type;
import java.util.List;
import java.util.Map;

public class MapperBiInstantiatorFactory {

    private final InstantiatorFactory instantiatorFactory;

    public MapperBiInstantiatorFactory(InstantiatorFactory instantiatorFactory) {
        this.instantiatorFactory = instantiatorFactory;
    }


    public <S, T, K extends FieldKey<K>, D extends ColumnDefinition<K, D>> BiInstantiator<S, MappingContext<? super S>,T> getBiInstantiator(Type source, Type target, PropertyMappingsBuilder<T, K, D> propertyMappingsBuilder, Map<Parameter, BiFunction<? super S, ? super MappingContext<? super S>, ?>> constructorParameterGetterMap, GetterFactory<? super S, K> getterFactory) throws NoSuchMethodException {
        return  getBiInstantiator(source, target, propertyMappingsBuilder, constructorParameterGetterMap, getterFactory, true);
    }

    @SuppressWarnings("unchecked")
    public <S, T, K extends FieldKey<K>, D extends ColumnDefinition<K, D>> BiInstantiator<S, MappingContext<? super S>, T> getBiInstantiator(Type source, Type target, PropertyMappingsBuilder<T, K, D> propertyMappingsBuilder, Map<Parameter, BiFunction<? super S, ? super MappingContext<? super S>, ?>> constructorParameterGetterMap, final  GetterFactory<? super S, K> getterFactory, boolean useAsmIfEnabled) throws NoSuchMethodException {

        if (propertyMappingsBuilder.isSelfProperty()) {
            Getter getter = propertyMappingsBuilder.forEachProperties(new ForEachCallBack<PropertyMapping<T, ?, K, D>>() {
                public Getter getter;
                @Override
                public void handle(PropertyMapping<T, ?, K, D> propertyMapping) {
                    getter = getterFactory.newGetter(propertyMapping.getPropertyMeta().getPropertyType(), propertyMapping.getColumnKey(), propertyMapping.getColumnDefinition().properties());
                }
            }).getter;

            return new GetterBiInstantiator<S, MappingContext<? super S>, T>(getter);
        }

        if (TypeHelper.isArray(target)) {
            return instantiatorFactory.<S, MappingContext<? super S>, T>getArrayBiInstantiator(TypeHelper.toClass(TypeHelper.getComponentTypeOfListOrArray(target)), propertyMappingsBuilder.forEachProperties(new CalculateMaxIndex<T, K, D>()).maxIndex + 1);
        } else {
            List<InstantiatorDefinition> instantiatorDefinitions = propertyMappingsBuilder.getPropertyFinder().getEligibleInstantiatorDefinitions();
            return
                    instantiatorFactory.
                            <S, MappingContext<? super S>, T>
                                    getBiInstantiator(
                                            target,
                                            TypeHelper.<S>toClass(source),
                                            MappingContext.class,
                                            instantiatorDefinitions,
                                            constructorParameterGetterMap,
                                            useAsmIfEnabled);
        }
    }

}