com.liferay.portal.kernel.model.adapter.ModelAdapterUtil.java Source code

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Here is the source code for com.liferay.portal.kernel.model.adapter.ModelAdapterUtil.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.model.adapter;

import com.liferay.portal.kernel.model.adapter.builder.ModelAdapterBuilder;
import com.liferay.portal.kernel.model.adapter.builder.ModelAdapterBuilderLocator;
import com.liferay.registry.Registry;
import com.liferay.registry.RegistryUtil;
import com.liferay.registry.ServiceTracker;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Mt Thurz
 */
public class ModelAdapterUtil {

    public static <T, V> List<V> adapt(List<T> adapteeModels, Class<T> adapteeModelClass,
            Class<V> adaptedModelClass) {

        List<V> adaptedModels = new ArrayList<>();

        for (T adapteeModel : adapteeModels) {
            adaptedModels.add(adapt(adapteeModel, adapteeModelClass, adaptedModelClass));
        }

        return adaptedModels;
    }

    public static <T, V> List<V> adapt(List<T> adapteeModels, Class<V> adaptedModelClass) {

        List<V> adaptedModels = new ArrayList<>();

        for (T adapteeModel : adapteeModels) {
            adaptedModels.add(adapt(adapteeModel, adaptedModelClass));
        }

        return adaptedModels;
    }

    public static <T, V> V adapt(T adapteeModel, Class<T> adapteeModelClass, Class<V> adaptedModelClass) {

        return doAdapt(adapteeModel, adapteeModelClass, adaptedModelClass);
    }

    public static <T, V> V adapt(T adapteeModel, Class<V> adaptedModelClass) {
        Class<T> adapteeModelClass = (Class<T>) adapteeModel.getClass();

        return doAdapt(adapteeModel, adapteeModelClass, adaptedModelClass);
    }

    protected static <T, V> V doAdapt(T adapteeModel, Class<T> adapteeModelClass, Class<V> adaptedModelClass) {

        ModelAdapterBuilderLocator modelAdapterBuilderLocator = _modelAdapterBuilderLocatorServiceTracker
                .getService();

        if (modelAdapterBuilderLocator == null) {
            return null;
        }

        ModelAdapterBuilder<T, V> modelAdapterBuilder = modelAdapterBuilderLocator.locate(adapteeModelClass,
                adaptedModelClass);

        return modelAdapterBuilder.build(adapteeModel);
    }

    private static final ServiceTracker<ModelAdapterBuilderLocator, ModelAdapterBuilderLocator> _modelAdapterBuilderLocatorServiceTracker;

    static {
        Registry registry = RegistryUtil.getRegistry();

        _modelAdapterBuilderLocatorServiceTracker = registry.trackServices(ModelAdapterBuilderLocator.class);

        _modelAdapterBuilderLocatorServiceTracker.open();
    }

}