AssetProvider.java

/*
 * #%L
 * Wisdom-Framework
 * %%
 * Copyright (C) 2013 - 2014 Wisdom Framework
 * %%
 * 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.
 * #L%
 */
package org.wisdom.api.asset;

import java.util.Collection;

/**
 * An interface used by {@link org.wisdom.api.asset.Assets} implementation to retrieve the set of assets.
 */
public interface AssetProvider {

    /**
     * @return the list of provided assets.
     */
    Collection<Asset<?>> assets();

    /**
     * Retrieves an asset.
     *
     * @param path the asset path
     * @return the Asset object, or {@literal null} if the current provider can't serve this asset.
     */
    Asset assetAt(String path);
}