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/*
 * Copyright 2015 Samppa Saarela
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.javersion.reflect;

import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Type;
import java.util.List;

import javax.annotation.Nonnull;

import org.javersion.util.Check;

import com.google.common.collect.ImmutableList;
import com.google.common.reflect.TypeToken;

public abstract class MemberDescriptor implements ElementDescriptor {

    @Nonnull
    protected final TypeDescriptor declaringType;

    public MemberDescriptor(TypeDescriptor declaringType) {
        this.declaringType = Check.notNull(declaringType, "declaringType");
    }

    @Override
    public List getAnnotations() {
        return ImmutableList.copyOf(getElement().getAnnotations());
    }

    @Override
    public  A getAnnotation(Class annotationClass) {
        return getElement().getAnnotation(annotationClass);
    }

    @Override
    public  boolean hasAnnotation(Class annotationClass) {
        return getElement().isAnnotationPresent(annotationClass);
    }

    public final TypeDescriptor getDeclaringType() {
        return declaringType;
    }

    TypeToken getSourceType() {
        return declaringType.getTypeToken();
    }

    TypeDescriptor resolveType(Type genericType) {
        TypeToken resolveType = getSourceType().resolveType(genericType);
        return getTypeDescriptor(resolveType);
    }

    TypeDescriptor getTypeDescriptor(TypeToken typeToken) {
        return getTypeDescriptors().get(typeToken);
    }

    TypeDescriptors getTypeDescriptors() {
        return declaringType.getTypeDescriptors();
    }

    abstract AnnotatedElement getElement();

    public abstract int hashCode();

    public abstract boolean equals(Object obj);

}