/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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.seasar.framework.beans.factory;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.util.Map;
import org.seasar.framework.beans.ParameterizedClassDesc;
import org.seasar.framework.beans.factory.ParameterizedClassDescFactory.Provider;
import org.seasar.framework.beans.impl.ParameterizedClassDescImpl;
import static org.seasar.framework.util.tiger.GenericUtil.*;
/**
* {@link Provider}の機能を提供する実装クラスです。
*
* @since 2.4.18
* @author koichik
*/
public class ParameterizedClassDescFactoryProvider implements Provider {
@SuppressWarnings("unchecked")
public Map<TypeVariable<?>, Type> getTypeVariables(Class beanClass) {
return getTypeVariableMap(beanClass);
}
@SuppressWarnings("unchecked")
public ParameterizedClassDesc createParameterizedClassDesc(
final Field field, final Map map) {
return createParameterizedClassDesc(field.getGenericType(), map);
}
@SuppressWarnings("unchecked")
public ParameterizedClassDesc createParameterizedClassDesc(
final Method method, final int index, Map map) {
return createParameterizedClassDesc(
method.getGenericParameterTypes()[index], map);
}
@SuppressWarnings("unchecked")
public ParameterizedClassDesc createParameterizedClassDesc(
final Method method, Map map) {
return createParameterizedClassDesc(method.getGenericReturnType(), map);
}
/**
* {@link Type}を表現する{@link ParameterizedClassDesc}を作成して返します。
*
* @param type
* 型
* @param map
* パラメータ化された型が持つ型変数をキー、型引数を値とする{@link Map}
* @return 型を表現する{@link ParameterizedClassDesc}
*/
public ParameterizedClassDesc createParameterizedClassDesc(final Type type,
final Map<TypeVariable<?>, Type> map) {
final Class<?> rowClass = getActualClass(type, map);
if (rowClass == null) {
return null;
}
final ParameterizedClassDescImpl desc = new ParameterizedClassDescImpl(
rowClass);
final Type[] parameterTypes = getGenericParameter(type);
if (parameterTypes == null) {
return desc;
}
final ParameterizedClassDesc[] parameterDescs = new ParameterizedClassDesc[parameterTypes.length];
for (int i = 0; i < parameterTypes.length; ++i) {
parameterDescs[i] = createParameterizedClassDesc(parameterTypes[i],
map);
}
desc.setArguments(parameterDescs);
return desc;
}
}