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package eu.dnetlib.openaire.exporter.datasource;
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import java.util.List;
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import java.util.Queue;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ScheduledThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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import java.util.stream.Collectors;
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import javax.annotation.PostConstruct;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Queues;
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import com.google.common.util.concurrent.*;
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import eu.dnetlib.OpenaireExporterConfig;
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import eu.dnetlib.enabling.datasources.common.AggregationInfo;
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import eu.dnetlib.enabling.datasources.common.AggregationStage;
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import eu.dnetlib.enabling.datasources.common.DatasourceManagerException;
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import eu.dnetlib.openaire.exporter.datasource.clients.*;
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import eu.dnetlib.openaire.exporter.datasource.clients.utils.IndexDsInfo;
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import eu.dnetlib.openaire.exporter.datasource.clients.utils.IndexRecordsInfo;
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import eu.dnetlib.openaire.exporter.model.ApiDetailsResponse;
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import eu.dnetlib.openaire.exporter.model.ConversionUtils;
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import eu.dnetlib.openaire.exporter.model.DatasourceResponse;
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import eu.dnetlib.openaire.exporter.model.datasource.*;
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import eu.dnetlib.openaire.exporter.model.datasource.db.ApiDbEntry;
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import eu.dnetlib.openaire.exporter.model.datasource.db.DatasourceDbEntry;
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import eu.dnetlib.openaire.exporter.vocabularies.Country;
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import org.apache.commons.lang3.exception.ExceptionUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.domain.Page;
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import org.springframework.stereotype.Component;
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import static eu.dnetlib.openaire.exporter.datasource.clients.ResponseUtils.apiResponse;
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import static eu.dnetlib.openaire.exporter.datasource.clients.ResponseUtils.datasourceResponse;
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@Component
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public class DatasourceManagerCore {
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private static final Log log = LogFactory.getLog(DatasourceManagerCore.class);
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@Autowired
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private MongoLoggerClient mongoLoggerClient;
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@Autowired
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private ISLookupClient isLookupClient;
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@Autowired
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private ObjectStoreClient objectStoreClient;
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@Autowired
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private DatasourceIndexClient datasourceIndexClient;
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@Autowired
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private VocabularyClient vocabularyClient;
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@Autowired
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private DatasourceDao dsDao;
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@Autowired
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private OpenaireExporterConfig config;
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private ListeningExecutorService executor;
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@PostConstruct
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public void init() {
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executor = MoreExecutors.listeningDecorator(
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new ScheduledThreadPoolExecutor(config.getRequestWorkers(),
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new ThreadFactoryBuilder().setNameFormat("datasource-info-retriever-%d").build()));
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}
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public List<Country> listCountries() throws DatasourceManagerException {
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return dsDao.listCountries();
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}
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public DatasourceResponse search(RequestSort requestSortBy, RequestSortOrder order, RequestFilter requestFilter, int page, int size)
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throws DatasourceManagerException {
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final List<DatasourceInfo> datasourceInfo = Lists.newArrayList();
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final Queue<Throwable> errors = Queues.newLinkedBlockingQueue();
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final CountDownLatch outerLatch = new CountDownLatch(2);
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final Page<DatasourceDbEntry> dsPage = dsDao.search(requestSortBy, order, requestFilter, page, size);
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if (dsPage.getTotalElements() > 0 && dsPage.getNumberOfElements() > 0) {
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dsPage.forEach(d -> datasourceInfo.add(enrichDatasourceInfo(ConversionUtils.asDetails(d), outerLatch, errors)));
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waitLatch(outerLatch, errors, config.getRequestTimeout());
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}
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return datasourceResponse(datasourceInfo, errors, dsPage.getTotalElements());
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}
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public List<String> findBaseURLs(final RequestFilter requestFilter, final int page, final int size) throws DatasourceManagerException {
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return dsDao.findBaseURLs(requestFilter, page, size);
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}
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public ApiDetailsResponse getApis(final String dsId) throws DatasourceManagerException {
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final List<ApiDbEntry> apis = dsDao.getApis(dsId);
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final List<ApiDetails> api = apis.stream()
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.map(ConversionUtils::asDetails)
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.collect(Collectors.toList());
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return apiResponse(api, api.size());
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}
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public void setManaged(final String dsId, final boolean managed) throws DatasourceManagerException {
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log.info(String.format("updated api '%s' managed with '%s'", dsId, managed));
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dsDao.setManaged(dsId, managed);
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}
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public boolean isManaged(final String dsId) throws DatasourceManagerException {
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return dsDao.isManaged(dsId);
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}
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public boolean exist(final DatasourceDetails d) throws DatasourceManagerException {
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return ((DatasourceDaoImpl) dsDao).existDs(d.getId());
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}
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public void save(final DatasourceDetails d) throws DatasourceManagerException {
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dsDao.saveDs(ConversionUtils.asDbEntry(d));
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//TODO add also to the IS
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}
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public void updateDatasourcename(final String dsId, final String officialname, final String englishname) throws DatasourceManagerException {
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log.info(String.format("updated datasource '%s' with officialname '%s' and englishname '%s'", dsId, officialname, englishname));
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dsDao.updateDatasourceName(dsId, officialname, englishname);
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//TODO update also to the IS
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}
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public void updateCoordinates(final String dsId, final Double latitude, final Double longitude) throws DatasourceManagerException {
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log.info(String.format("updated datasource '%s' with coordinates Lat:'%s', Lon:'%s'", dsId, latitude, longitude));
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dsDao.updateCoordinates(dsId, latitude, longitude);
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//TODO update also to the IS
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}
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public void updateApiBaseurl(final String apiId, final String baseUrl) throws DatasourceManagerException {
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log.info(String.format("updated api '%s' baseurl with '%s'", apiId, baseUrl));
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dsDao.updateBaseUrl(apiId, baseUrl);
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//TODO update also to the IS
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}
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public void updateTimezone(final String dsId, final String timezone) throws DatasourceManagerException {
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log.info(String.format("updated datasource '%s' timezone with '%s'", dsId, timezone));
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dsDao.updateTimezone(dsId, timezone);
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//TODO update also to the IS
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}
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public void updateDsTypology(final String dsId, final String typology) throws DatasourceManagerException {
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log.info(String.format("updated datasource '%s' typology with '%s'", dsId, typology));
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dsDao.updateTypology(dsId, typology);
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//TODO update also to the IS
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}
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public void updateApiCompatibility(final String apiId, final String compliance, final boolean override) throws DatasourceManagerException {
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log.info(String.format("updated api '%s' compliance with '%s'", apiId, compliance));
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dsDao.updateCompliance(null, apiId, compliance, override);
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//TODO update also to the IS
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}
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public void deleteDs(final String dsId) throws DatasourceManagerException {
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log.info(String.format("deleted datasource '%s'", dsId));
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dsDao.deleteDs(dsId);
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}
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public void deleteApi(final String apiId) throws DatasourceManagerException {
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dsDao.deleteApi(null, apiId);
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}
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public void dropCaches() {
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mongoLoggerClient.dropCache();
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isLookupClient.dropCache();
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vocabularyClient.dropCache();
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}
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// HELPERS //////////////
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private DatasourceInfo enrichDatasourceInfo(final DatasourceDetails d, final CountDownLatch outerLatch, final Queue<Throwable> errors) {
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final DatasourceInfo dsInfo = new DatasourceInfo().setDatasource(d);
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getAggregationHistory(d.getId(), outerLatch, errors, dsInfo);
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getIndexDsInfo(d.getId(), outerLatch, errors, dsInfo);
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return dsInfo;
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}
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private void getAggregationHistory(final String dsId,
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final CountDownLatch outerLatch,
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final Queue<Throwable> errors,
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final DatasourceInfo datasourceInfo) {
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Futures.addCallback(
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executor.submit(() -> mongoLoggerClient.getAggregationHistory(dsId)),
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new FutureCallback<List<AggregationInfo>>() {
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public void onSuccess(List<AggregationInfo> info) {
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setAggregationHistory(datasourceInfo, info);
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outerLatch.countDown();
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}
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public void onFailure(Throwable e) {
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log.error(ExceptionUtils.getStackTrace(e));
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errors.offer(e);
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outerLatch.countDown();
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}
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}, executor);
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}
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private void setAggregationHistory(final DatasourceInfo datasourceInfo, final List<AggregationInfo> info) {
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datasourceInfo.setAggregationHistory(info);
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if (!info.isEmpty()) {
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datasourceInfo
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.setLastCollection(info.stream().filter(a -> AggregationStage.COLLECT.equals(a.getAggregationStage())).findFirst().get())
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.setLastTransformation(info.stream().filter(a -> AggregationStage.TRANSFORM.equals(a.getAggregationStage())).findFirst().get());
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}
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}
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private void getIndexDsInfo(final String dsId,
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final CountDownLatch outerLatch,
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final Queue<Throwable> errors,
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final DatasourceInfo datasourceInfo) {
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Futures.addCallback(
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executor.submit(() -> isLookupClient.calculateCurrentIndexDsInfo()),
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new FutureCallback<IndexDsInfo>() {
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public void onSuccess(final IndexDsInfo info) {
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final CountDownLatch innerLatch = new CountDownLatch(2);
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Futures.addCallback(
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executor.submit(() -> datasourceIndexClient.getIndexInfo(dsId, info, errors)),
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new FutureCallback<IndexRecordsInfo>() {
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public void onSuccess(IndexRecordsInfo info) {
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datasourceInfo
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.setIndexRecords(info.getTotal())
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.setFundedContent(info.getFunded())
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.setLastIndexingDate(info.getDate());
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innerLatch.countDown();
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}
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public void onFailure(Throwable e) {
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errors.offer(e);
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innerLatch.countDown();
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}
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}, executor);
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Futures.addCallback(
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executor.submit(() ->
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objectStoreClient.getObjectStoreSize(
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isLookupClient.getObjectStoreId(dsId, errors),
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errors)),
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new FutureCallback<Long>() {
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@Override
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public void onSuccess(final Long objectStoreSize) {
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datasourceInfo.setFulltexts(objectStoreSize);
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innerLatch.countDown();
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}
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@Override
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public void onFailure(final Throwable e) {
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errors.offer(e);
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innerLatch.countDown();
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}
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}, executor);
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waitLatch(innerLatch, errors, config.getRequestTimeout());
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outerLatch.countDown();
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}
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public void onFailure(final Throwable e) {
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//log.error(ExceptionUtils.getStackTrace(e));
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errors.offer(e);
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outerLatch.countDown();
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}
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}, executor);
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}
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private void waitLatch(final CountDownLatch latch, final Queue<Throwable> errors, final int waitSeconds) {
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try {
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if (!latch.await(waitSeconds, TimeUnit.SECONDS)) {
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errors.offer(new TimeoutException("Waiting for requests to complete has timed out."));
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}
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} catch (final InterruptedException e) {
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errors.offer(e);
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}
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}
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}
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