/*
 * Copyright (c) 2010, grossmann
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the jo-widgets.org nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package org.jowidgets.tools.widgets.blueprint.defaults;

import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.jowidgets.api.widgets.blueprint.defaults.IDefaultInitializer;
import org.jowidgets.api.widgets.blueprint.defaults.IDefaultsInitializerRegistry;
import org.jowidgets.common.widgets.builder.ISetupBuilder;
import org.jowidgets.util.Assert;

@SuppressWarnings({"rawtypes", "unchecked"})
public class DefaultsInitializerRegistry implements IDefaultsInitializerRegistry {

    private final Map map;

    public DefaultsInitializerRegistry() {
        this.map = new HashMap();
    }

    @Override
    public void register(final Class<? extends ISetupBuilder> setupBuilder, final IDefaultInitializer<?> defaultsImpl) {
        Assert.paramNotNull(setupBuilder, "setupBuilder");
        Assert.paramNotNull(defaultsImpl, "defaultsImpl");
        List<IDefaultInitializer<?>> list = (List<IDefaultInitializer<?>>) map.get(setupBuilder);
        if (list == null) {
            list = new LinkedList<IDefaultInitializer<?>>();
            map.put(setupBuilder, list);
        }
        list.add(defaultsImpl);
    }

    @Override
    public void setDefaultsInitializer(
        final Class<? extends ISetupBuilder> setupBuilder,
        final IDefaultInitializer<?> defaultsImpl) {
        Assert.paramNotNull(setupBuilder, "setupBuilder");
        map.remove(setupBuilder);
        register(setupBuilder, defaultsImpl);
    }

    @Override
    public List<IDefaultInitializer<ISetupBuilder<?>>> getRegistered(final Class<? extends ISetupBuilder> setupBuilder) {
        Assert.paramNotNull(setupBuilder, "setupBuilder");
        List<IDefaultInitializer<ISetupBuilder<?>>> list = (List<IDefaultInitializer<ISetupBuilder<?>>>) map.get(setupBuilder);
        if (list == null) {
            list = Collections.emptyList();
        }
        return list;
    }

    @Override
    public List<Class<ISetupBuilder>> getRegisteredSetupBuilder() {
        final List<Class<ISetupBuilder>> result = new LinkedList<Class<ISetupBuilder>>();
        for (final Object object : map.keySet()) {
            result.add((Class<ISetupBuilder>) object);
        }
        return result;
    }

}