com.vmware.photon.controller.api.frontend.backends.FlavorLoader.java Source code

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Here is the source code for com.vmware.photon.controller.api.frontend.backends.FlavorLoader.java

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/*
 * Copyright 2015 VMware, Inc. All Rights Reserved.
 *
 * 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 com.vmware.photon.controller.api.frontend.backends;

import com.vmware.photon.controller.api.frontend.entities.FlavorEntity;
import com.vmware.photon.controller.api.frontend.entities.QuotaLineItemEntity;
import com.vmware.photon.controller.api.frontend.exceptions.external.FlavorNotFoundException;
import com.vmware.photon.controller.api.model.FlavorCreateSpec;
import com.vmware.photon.controller.api.model.QuotaLineItem;

import com.google.common.collect.ImmutableList;
import com.google.inject.Singleton;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static com.google.common.base.Preconditions.checkNotNull;

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

/**
 * Pre-load flavor from files for test.
 */
@Singleton
public class FlavorLoader {

    private static final Logger logger = LoggerFactory.getLogger(FlavorLoader.class);

    private Map<String, Map<String, FlavorCreateSpec>> flavors;
    private List<FlavorCreateSpec> flavorList;

    public FlavorLoader(Map<String, Map<String, FlavorCreateSpec>> flavors) {
        this.flavors = flavors;

        ImmutableList.Builder<FlavorCreateSpec> builder = ImmutableList.builder();
        for (Map<String, FlavorCreateSpec> flavorMap : flavors.values()) {
            builder.addAll(flavorMap.values());
        }

        this.flavorList = builder.build();
    }

    /**
     * Returns cost for particular entity.
     *
     * @param flavorEntity
     * @return
     * @throws FlavorNotFoundException
     */
    public List<QuotaLineItemEntity> getCost(FlavorEntity flavorEntity) throws FlavorNotFoundException {
        return getCost(flavorEntity.getKind(), flavorEntity.getName());
    }

    /**
     * Returns cost for particular kind and flavor.
     *
     * @param kind       entity kind (vm, disk etc.)
     * @param flavorName flavor name
     * @return Cost of a given flavor
     */
    public List<QuotaLineItemEntity> getCost(String kind, String flavorName) throws FlavorNotFoundException {
        checkNotNull(kind);
        checkNotNull(flavorName);

        Map<String, FlavorCreateSpec> flavorMap = flavors.get(kind);

        if (flavorMap == null) {
            throw new FlavorNotFoundException(kind, flavorName);
        }

        FlavorCreateSpec flavor = flavorMap.get(flavorName);

        if (flavor == null) {
            throw new FlavorNotFoundException(kind, flavorName);
        }

        List<QuotaLineItemEntity> result = new ArrayList<>();
        for (QuotaLineItem item : flavor.getCost()) {
            result.add(new QuotaLineItemEntity(item.getKey(), item.getValue(), item.getUnit()));
        }
        return result;
    }

    /**
     * Get all pre-loaded flavors.
     */
    public List<FlavorCreateSpec> getAllFlavors() {
        return flavorList;
    }
}