org.sfm.reflect.meta.OptionalPropertyFinder Maven / Gradle / Ivy

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package org.sfm.reflect.meta;

import org.sfm.reflect.InstantiatorDefinition;

import java.util.Arrays;
import java.util.List;

public class OptionalPropertyFinder implements PropertyFinder {


    private final OptionalClassMeta tupleClassMeta;
    private final PropertyFinder propertyFinder;
    private int nbProp = 0;
    private final ClassMeta innerMeta;

    public OptionalPropertyFinder(OptionalClassMeta tupleClassMeta) {
        this.tupleClassMeta = tupleClassMeta;
        innerMeta = tupleClassMeta.getInnerMeta();
        this.propertyFinder = innerMeta != null ? innerMeta.newPropertyFinder() : null;
	}


    @SuppressWarnings("unchecked")
    @Override
    public  PropertyMeta findProperty(PropertyNameMatcher propertyNameMatcher) {
        if (!innerMeta.isLeaf()) {
            final PropertyMeta property = propertyFinder.findProperty(propertyNameMatcher);

            if (property != null) {
                return getSubPropertyMeta((PropertyMeta) property);
            }
        } else if (nbProp == 0){
            nbProp++;
            return (PropertyMeta) tupleClassMeta.getProperty();
        }

        return null;
    }

    @SuppressWarnings("unchecked")
    private  PropertyMeta getSubPropertyMeta(PropertyMeta property) {
        return new SubPropertyMeta(tupleClassMeta.getReflectionService(), (PropertyMeta) tupleClassMeta.getProperty(), property);
    }

    @Override
    public List getEligibleInstantiatorDefinitions() {
        return Arrays.asList(tupleClassMeta.getInstantiatorDefinition());
    }

    @Override
    public  ConstructorPropertyMeta findConstructor(InstantiatorDefinition instantiatorDefinition) {
        return null;
    }
}