org.jclouds.softlayer.compute.functions.ProductItems.java Source code

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Here is the source code for org.jclouds.softlayer.compute.functions.ProductItems.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.softlayer.compute.functions;

import java.util.NoSuchElementException;
import java.util.Set;

import org.jclouds.softlayer.domain.ProductItem;
import org.jclouds.softlayer.domain.ProductItemCategory;
import org.jclouds.softlayer.domain.ProductItemPrice;

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

public class ProductItems {

    /**
     * Creates a function to get the capacity from a product item.
     */
    public static Function<ProductItem, Float> capacity() {
        return new Function<ProductItem, Float>() {
            @Override
            public Float apply(ProductItem productItem) {
                return productItem.getCapacity();
            }
        };
    }

    /**
     * Creates a function to get the description from a product item.
     */
    public static Function<ProductItem, String> description() {
        return new Function<ProductItem, String>() {
            @Override
            public String apply(ProductItem productItem) {
                return productItem.getDescription();
            }
        };
    }

    /**
     * Creates a function to get the ProductItemPrice for the ProductItem. Currently returns the
     * first prices. This will need to be changed if more than one prices is returned.
     */
    public static Function<ProductItem, ProductItemPrice> price() {
        return new Function<ProductItem, ProductItemPrice>() {
            @Override
            public ProductItemPrice apply(ProductItem productItem) {
                if (productItem.getPrices().size() < 1)
                    throw new NoSuchElementException("ProductItem has no prices:" + productItem);
                return Iterables.get(productItem.getPrices(), 0);
            }
        };
    }

    /**
     * Creates a function to get the ProductItem for the ProductItemPrice. Copies the category
     * information from the prices to the item if necessary The ProductItemPrices must have
     * ProductItems.
     */
    public static Function<ProductItemPrice, ProductItem> item() {
        return new Function<ProductItemPrice, ProductItem>() {
            @Override
            public ProductItem apply(ProductItemPrice productItemPrice) {
                Set<ProductItemCategory> categories = productItemPrice.getCategories();
                ProductItem item = productItemPrice.getItem();
                ProductItem.Builder builder = productItemPrice.getItem().toBuilder();
                if (item.getCategories().size() == 0 && categories.size() != 0) {
                    builder.categories(categories);
                }

                return builder.build();
            }
        };
    }
}