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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * 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.jboss.weld.interceptor.reader;

import java.io.Serializable;
import java.lang.reflect.Method;
import java.util.Iterator;

import org.jboss.weld.interceptor.spi.metadata.ClassMetadata;
import org.jboss.weld.interceptor.spi.metadata.MethodMetadata;
import org.jboss.weld.interceptor.util.ArrayIterator;
import org.jboss.weld.interceptor.util.ImmutableIteratorWrapper;

/**
 * @author Marius Bogoevici
 */
public class ReflectiveClassMetadata implements ClassMetadata, Serializable {

    private static final long serialVersionUID = -2088679292389273922L;

    private final Class clazz;

    private ReflectiveClassMetadata(Class clazz) {
        this.clazz = clazz;
    }

    public static  ClassMetadata of(Class clazz) {
        return new ReflectiveClassMetadata(clazz);
    }

    public String getClassName() {
        return clazz.getName();
    }

    public Iterable getDeclaredMethods() {
        return new Iterable() {
            public Iterator iterator() {
                return new ImmutableIteratorWrapper(new ArrayIterator(ReflectiveClassMetadata.this.clazz.getDeclaredMethods())) {
                    @Override
                    protected MethodMetadata wrapObject(Method method) {
                        return DefaultMethodMetadata.of(method);
                    }
                };
            }
        };
    }

    public Class getJavaClass() {
        return clazz;
    }

    @SuppressWarnings({"unchecked", "rawtypes"})
    public ClassMetadata getSuperclass() {
        Class superClass = clazz.getSuperclass();
        return superClass == null ? null : new ReflectiveClassMetadata(superClass);
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((clazz == null) ? 0 : clazz.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        ReflectiveClassMetadata other = (ReflectiveClassMetadata) obj;
        if (clazz == null) {
            if (other.clazz != null)
                return false;
        } else if (!clazz.equals(other.clazz))
            return false;
        return true;
    }


}