FeignAllocator.java

/*
 * Copyright 2005-2025 the original author or authors.
 *
 * 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.openwms.wms.shipping.spi;

import org.ameba.annotation.Measured;
import org.openwms.core.SpringProfiles;
import org.openwms.core.units.api.Measurable;
import org.openwms.wms.shipping.spi.wms.inventory.AllocatorApi;
import org.openwms.wms.shipping.spi.wms.inventory.Demand;
import org.springframework.context.annotation.Profile;
import org.springframework.stereotype.Component;

import java.util.Collections;
import java.util.List;

/**
 * A FeignAllocator uses an external API to search for available products.
 *
 * @author Heiko Scherrer
 */
@Profile(SpringProfiles.DISTRIBUTED)
@Component
class FeignAllocator implements InventoryAllocator {

    private final AllocatorApi allocatorApi;

    FeignAllocator(AllocatorApi allocatorApi) {
        this.allocatorApi = allocatorApi;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    @Measured
    public List<AllocatedTransportUnit> allocate(String sku, Measurable quantity, List<String> sourceLocationGroupNames) {
        var allocations = allocatorApi.allocate(new Demand(sku, quantity), sourceLocationGroupNames);
        if (allocations != null && !allocations.isEmpty()) {
            return allocations.stream().map(a ->
                    AllocatedTransportUnit.newBuilder()
                    .transportUnitBK(a.getTransportUnitBK())
                    .loadUnitPosition(a.getLoadUnitPosition())
                    .qty(a.getQtyAllocated())
                    .sku(a.getSku())
                    .reservationId(a.getReservationId())
                    .build()).toList();
        }
        return Collections.emptyList();
    }
}