/*
 * Copyright 2015 the original author or authors.
 *
 * 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.gradle.model.internal.manage.schema.extract;

import org.gradle.model.internal.core.*;
import org.gradle.model.internal.manage.schema.ModelSchema;
import org.gradle.model.internal.type.ModelType;

public class FactoryBasedNodeInitializerExtractionStrategy implements NodeInitializerExtractionStrategy {
    private final InstanceFactoryRegistry instanceFactoryRegistry;

    public FactoryBasedNodeInitializerExtractionStrategy(InstanceFactoryRegistry instanceFactoryRegistry) {
        this.instanceFactoryRegistry = instanceFactoryRegistry;
    }

    @Override
    public <T> NodeInitializer extractNodeInitializer(ModelSchema<T> schema, NodeInitializerRegistry nodeInitializerRegistry) {
        ModelType<T> type = schema.getType();
        ModelReference<InstanceFactory<? super T, String>> factoryReference = instanceFactoryRegistry.getFactory(type);
        if (factoryReference == null) {
            return null;
        }
        return new FactoryBasedNodeInitializer<T, T>(factoryReference, type);
    }

    @Override
    public Iterable<ModelType<?>> supportedTypes() {
        return instanceFactoryRegistry.supportedTypes();
    }
}
