demo.service.RemoteVehicleDetailsService.java Source code

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Here is the source code for demo.service.RemoteVehicleDetailsService.java

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/*
 * Copyright 2012-2016 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 demo.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;
import org.springframework.web.client.HttpStatusCodeException;
import org.springframework.web.client.RestTemplate;

@Service
public class RemoteVehicleDetailsService implements VehicleDetailsService {

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

    private final RemoteVehicleDetailsServiceProperties properties;

    private final RestTemplate restTemplate;

    public RemoteVehicleDetailsService(RemoteVehicleDetailsServiceProperties properties,
            RestTemplateBuilder restTemplateBuilder) {
        this.properties = properties;
        this.restTemplate = restTemplateBuilder.build();
    }

    @Override
    public VehicleDetails getVehicleDetails(VehicleIdentificationNumber vin)
            throws VehicleIdentificationNumberNotFoundException {
        Assert.notNull(vin, "VIN must not be null");
        String url = this.properties.getRootUrl() + "vehicle/{vin}/details";
        logger.debug("Retrieving vehicle data for: " + vin + " from: " + url);
        try {
            return this.restTemplate.getForObject(url, VehicleDetails.class, vin);
        } catch (HttpStatusCodeException ex) {
            if (HttpStatus.NOT_FOUND.equals(ex.getStatusCode())) {
                throw new VehicleIdentificationNumberNotFoundException(vin, ex);
            }
            throw ex;
        }
    }

}