D-Net

package eu.dnetlib.openaire.exporter.datasource.clients;

import java.nio.charset.Charset;

import java.util.Arrays;

import eu.dnetlib.OpenaireExporterConfig;

import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;

import eu.dnetlib.openaire.exporter.datasource.ApiException;

import eu.dnetlib.openaire.exporter.datasource.clients.utils.IndexDsInfo;

import org.apache.commons.io.IOUtils;

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.HttpStatus;

import org.springframework.stereotype.Component;

/**

 * Created by claudio on 20/10/2016.

 */

@Component

public class ISLookupClient {

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

	@Autowired

	private OpenaireExporterConfig config;

	@Autowired

	private ISLookUpService isLookUpService;

	@Cacheable("datasources-is-cache")

	public IndexDsInfo calculateCurrentIndexDsInfo() throws ApiException {

		log.warn("calculateCurrentIndexDsInfo(): not using cache");

		try {

			final String queryUrl = IOUtils.toString(config.getFindSolrIndexUrl().getInputStream(), Charset.defaultCharset());

			final String queryDs = IOUtils.toString(config.getFindIndexDsInfo().getInputStream(), Charset.defaultCharset());

			final String indexBaseUrl = isLookUpService.getResourceProfileByQuery(queryUrl);

			if (log.isDebugEnabled()) {

				log.debug(String.format("got solr url: '%s'", indexBaseUrl));

			}

			final String[] arr = isLookUpService.getResourceProfileByQuery(queryDs).split("@@@");

			if (log.isDebugEnabled()) {

				log.debug(String.format("got info: '%s'", Arrays.asList(arr)));

			}

			return new IndexDsInfo(indexBaseUrl, arr[0].trim(), arr[1].trim(), arr[2].trim());

		} catch (Throwable e) {

			throw new ApiException(HttpStatus.INTERNAL_SERVER_ERROR.value(), "Error querying information system", e);

		}

	}

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

	public void dropCache() {

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

	}

}