/*
 * Copyright 2004-2011 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.teeda.core.config.faces.impl;

import java.util.Iterator;
import java.util.List;

import org.seasar.teeda.core.config.faces.element.FacesConfig;
import org.seasar.teeda.core.config.faces.element.impl.FacesConfigWrapperImpl;

/**
 * @author shot
 */
public class FacesConfigUtil {

    private FacesConfigUtil() {
    }

    public static FacesConfig collectAllFacesConfig(List configs) {
        isAllFacesConfig(configs);
        FacesConfig wrappedFacesConfig = new FacesConfigWrapperImpl(configs);
        return wrappedFacesConfig;
    }

    public static void isAllFacesConfig(List configs) {
        if (configs == null) {
            throw new IllegalArgumentException();
        }
        for (Iterator itr = configs.iterator(); itr.hasNext();) {
            if (!(itr.next() instanceof FacesConfig)) {
                throw new IllegalStateException();
            }
        }
    }
}
