D-Net

package eu.dnetlib.openaire.dsm.dao;

import eu.dnetlib.OpenaireExporterConfig;

import eu.dnetlib.enabling.datasources.common.DsmException;

import eu.dnetlib.openaire.vocabularies.Vocabulary;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.cache.annotation.CacheEvict;

import org.springframework.cache.annotation.Cacheable;

import org.springframework.http.ResponseEntity;

import org.springframework.stereotype.Component;

import org.springframework.web.client.RestTemplate;

/**

 * Created by claudio on 15/09/2017.

 */

@Component

public class VocabularyClientImpl implements VocabularyClient {

	private static final Log log = LogFactory.getLog(VocabularyClientImpl.class);

	@Autowired

	private OpenaireExporterConfig config;

	@Override

	@Cacheable("vocabularies-cache")

	public Vocabulary getCountries() throws DsmException {

		return _getVocabulary(config.getVocabularies().getCountriesEndpoint(), Vocabulary.class);

	}

	@Override

	@Cacheable("vocabularies-cache")

	public Vocabulary getDatasourceTypologies() throws DsmException {

		return _getVocabulary(config.getVocabularies().getDatasourceTypologiesEndpoint(), Vocabulary.class);

	}

	private <T> T _getVocabulary(final String endpoint, Class<T> clazz) throws DsmException {

		final RestTemplate rt = new RestTemplate();

		log.info("get vocabulary from " + endpoint);

		final ResponseEntity<T> rsp = rt.getForEntity(endpoint, clazz);

		if (!rsp.getStatusCode().is2xxSuccessful()) {

			throw new DsmException(rsp.getStatusCodeValue(), "unable to read content from " + endpoint);

		}

		return rsp.getBody();

	}

	@Override

	@CacheEvict(cacheNames = "vocabularies-cache", allEntries = true)

	public void dropCache() {

		log.info("dropped dsManager vocabulary cache");

	}

}