org.jclouds.vcloud.compute.functions.ImagesInOrg.java Source code

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Here is the source code for org.jclouds.vcloud.compute.functions.ImagesInOrg.java

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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
 *
 * ====================================================================
 * 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.jclouds.vcloud.compute.functions;

import javax.inject.Inject;
import javax.inject.Provider;
import javax.inject.Singleton;

import org.jclouds.compute.domain.Image;
import org.jclouds.vcloud.domain.CatalogItem;
import org.jclouds.vcloud.domain.Org;
import org.jclouds.vcloud.domain.VAppTemplate;
import org.jclouds.vcloud.functions.AllCatalogItemsInOrg;

import com.google.common.base.Function;
import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;

/**
 * @author Adrian Cole
 */
@Singleton
public class ImagesInOrg implements Function<Org, Iterable<? extends Image>> {

    private final AllCatalogItemsInOrg allCatalogItemsInOrg;
    private final Function<Iterable<? extends CatalogItem>, Iterable<? extends VAppTemplate>> vAppTemplatesForCatalogItems;
    private final Provider<ImageForVAppTemplate> imageForVAppTemplateProvider;

    @Inject
    ImagesInOrg(AllCatalogItemsInOrg allCatalogItemsInOrg,
            Provider<ImageForVAppTemplate> imageForVAppTemplateProvider,
            Function<Iterable<? extends CatalogItem>, Iterable<? extends VAppTemplate>> vAppTemplatesForCatalogItems) {
        this.imageForVAppTemplateProvider = imageForVAppTemplateProvider;
        this.allCatalogItemsInOrg = allCatalogItemsInOrg;
        this.vAppTemplatesForCatalogItems = vAppTemplatesForCatalogItems;
    }

    @Override
    public Iterable<? extends Image> apply(Org from) {
        Iterable<? extends CatalogItem> catalogs = allCatalogItemsInOrg.apply(from);
        Iterable<? extends VAppTemplate> vAppTemplates = vAppTemplatesForCatalogItems.apply(catalogs);
        return Iterables.transform(Iterables.filter(vAppTemplates, Predicates.notNull()),
                imageForVAppTemplateProvider.get().withParent(from));
    }

}