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package eu.dnetlib.enabling.datasources;
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import java.io.StringReader;
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import java.text.ParseException;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.Collectors;
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import org.apache.commons.io.IOUtils;
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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.dom4j.Document;
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import org.dom4j.io.SAXReader;
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import org.quartz.CronExpression;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Required;
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import org.springframework.core.io.ClassPathResource;
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import org.springframework.core.io.Resource;
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import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
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import com.google.common.collect.ImmutableMap;
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import eu.dnetlib.enabling.datasources.common.Api;
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import eu.dnetlib.enabling.datasources.common.ApiParam;
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import eu.dnetlib.enabling.datasources.common.Datasource;
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import eu.dnetlib.enabling.datasources.common.DatasourceManagerException;
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import eu.dnetlib.enabling.datasources.common.Identity;
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import eu.dnetlib.enabling.datasources.common.Organization;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpDocumentNotFoundException;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpException;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
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import eu.dnetlib.enabling.is.registry.rmi.ISRegistryService;
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import eu.dnetlib.enabling.locators.UniqueServiceLocator;
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public class DatasourceManagerClients {
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private static final String REPOSITORY_SERVICE_RESOURCE_TYPE = "RepositoryServiceResourceType";
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private static final Log log = LogFactory.getLog(DatasourceManagerClients.class);
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private static final Resource isDefinedParamQuery = new ClassPathResource("/eu/dnetlib/enabling/datasources/queries/isDefinedParam.sql");
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private static final Resource dsQuery = new ClassPathResource("/eu/dnetlib/enabling/datasources/queries/getDatasource.sql");
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private static final Resource dsIdentitiesQuery = new ClassPathResource("/eu/dnetlib/enabling/datasources/queries/dsIdentitiesQuery.sql");
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private static final Resource dsOrganizationsQuery = new ClassPathResource("/eu/dnetlib/enabling/datasources/queries/dsOrganizationsQuery.sql");
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private static final Resource listApisByDsId = new ClassPathResource("/eu/dnetlib/enabling/datasources/queries/listApisByDsId.sql");
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private NamedParameterJdbcTemplate jdbcTemplate;
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public enum AfterSqlUpdate {
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DELETE_DS_PROFILE, UPDATE_DS_PROFILE, NONE
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}
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@Autowired
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private UniqueServiceLocator serviceLocator;
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public String findDatasourceId(final String profileId) throws DatasourceManagerException {
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try {
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return serviceLocator.getService(ISLookUpService.class).getResourceProfileByQuery(
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"/*[.//RESOURCE_IDENTIFIER/@value='" + profileId + "']//EXTRA_FIELDS/FIELD[./key='OpenAireDataSourceId']/value/text()");
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} catch (final Exception e) {
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log.error("Error finding dsId of profile " + profileId, e);
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throw new DatasourceManagerException(-1, "Error finding dsId of profile " + profileId, e);
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}
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}
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public String getDatasourceProfile(final String dsId) throws DatasourceManagerException {
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try {
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return serviceLocator.getService(ISLookUpService.class)
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.getResourceProfileByQuery(
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"collection('/db/DRIVER/RepositoryServiceResources/RepositoryServiceResourceType')/*[.//EXTRA_FIELDS/FIELD[./key='OpenAireDataSourceId']/value/text() = '"
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+ dsId + "']");
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} catch (final Exception e) {
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return null;
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}
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}
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public boolean deleteProfile(final String dsId) throws DatasourceManagerException {
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try {
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final SAXReader reader = new SAXReader();
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final String profile = getDatasourceProfile(dsId);
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if (profile != null) {
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final Document docOld = reader.read(new StringReader(profile));
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final String profId = docOld.valueOf("//RESOURCE_IDENTIFIER/@value");
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serviceLocator.getService(ISRegistryService.class).deleteProfile(profId);
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}
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return true;
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} catch (final Exception e) {
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log.error("Error deleting profile", e);
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throw new DatasourceManagerException(-1, "Error deleting profile", e);
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}
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}
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public boolean regenerateProfile(final String dsId) throws DatasourceManagerException {
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final Datasource<Organization<?>, Identity> ds = getDatasourceById(dsId);
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final List<Api<ApiParam>> apis = getApis(dsId);
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try {
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final ISRegistryService registry = serviceLocator.getService(ISRegistryService.class);
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final String oldProfile = getDatasourceProfile(dsId);
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if (oldProfile != null) {
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final Document docOld = new SAXReader().read(new StringReader(oldProfile));
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final String profId = docOld.valueOf("//RESOURCE_IDENTIFIER/@value");
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final String profile = DatasourceFunctions.dsToProfile(ds, apis, profId);
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registry.updateProfile(profId, profile, REPOSITORY_SERVICE_RESOURCE_TYPE);
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log.info("Profile " + profId + " UPDATED for ds " + dsId);
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} else {
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final String profile = DatasourceFunctions.dsToProfile(ds, apis, "");
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final String profId = registry.registerProfile(profile);
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log.info("Valid Profile " + profId + " REGISTERED for ds " + dsId);
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}
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return true;
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} catch (final Exception e) {
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log.error("Error saving profile, id: " + dsId, e);
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throw new DatasourceManagerException(-1, "Error regenerating profile", e);
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}
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}
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public List<Map<String, Object>> searchSQL(final String sql, final Map<String, Object> sqlParams) throws DatasourceManagerException {
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try {
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log.debug("Executing SQL: " + sql);
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return jdbcTemplate.queryForList(sql, sqlParams);
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} catch (final Exception e) {
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log.error("Error executing sql", e);
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throw new DatasourceManagerException(-1, "Error obtaining datasources from db", e);
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}
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}
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public List<Map<String, Object>> searchSQL(final Resource sqlResource, final Map<String, Object> sqlParams) throws DatasourceManagerException {
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try {
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return searchSQL(IOUtils.toString(sqlResource.getInputStream()), sqlParams);
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} catch (final Exception e) {
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log.error("Error executing sql", e);
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throw new DatasourceManagerException(-1, "Error obtaining datasources from db", e);
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}
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}
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public void updateSQL(final String dsId, final String sql, final AfterSqlUpdate op, final Map<String, Object> sqlparams)
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throws DatasourceManagerException {
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log.debug("Executing query SQL: " + sql);
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jdbcTemplate.update(sql, sqlparams);
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switch (op) {
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case DELETE_DS_PROFILE:
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deleteProfile(dsId);
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break;
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case UPDATE_DS_PROFILE:
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regenerateProfile(dsId);
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break;
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default:
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break;
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}
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}
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public void updateSQL(final String dsId, final Resource sqlResource, final AfterSqlUpdate op, final Map<String, Object> sqlparams)
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throws DatasourceManagerException {
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try {
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updateSQL(dsId, IOUtils.toString(sqlResource.getInputStream()), op, sqlparams);
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} catch (final Exception e) {
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log.error("Error in updateSQL", e);
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throw new DatasourceManagerException(-1, "Error in updateSQL", e);
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}
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}
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public Datasource<Organization<?>, Identity> getDatasourceById(final String id) throws DatasourceManagerException {
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final List<Map<String, Object>> list = searchSQL(dsQuery, ImmutableMap.of("dsId", id));
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if (list.size() != 1) { throw new DatasourceManagerException("Invalid number of ds with id: " + id); }
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final Datasource<Organization<?>, Identity> ds = DatasourceFunctions.mapToDatasource(list.get(0));
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ds.setIdentities(searchSQL(dsIdentitiesQuery, ImmutableMap.of("dsId", id))
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.stream()
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.map(DatasourceFunctions::mapToDsIdentity)
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.collect(Collectors.toSet()));
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ds.setOrganizations(searchSQL(dsOrganizationsQuery, ImmutableMap.of("dsId", id))
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.stream()
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.map(DatasourceFunctions::mapToDsOrganization)
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.collect(Collectors.toSet()));
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return ds;
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}
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public List<Api<ApiParam>> getApis(final String dsId) throws DatasourceManagerException {
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return searchSQL(listApisByDsId, ImmutableMap.of("dsId", dsId))
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.stream()
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.map(DatasourceFunctions::mapToApi)
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.collect(Collectors.toList());
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}
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public boolean isDefinedParam(final String apiId, final String param) throws DatasourceManagerException {
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return !searchSQL(isDefinedParamQuery, ImmutableMap.of("apiId", apiId, "param", param)).isEmpty();
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}
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public Date findNextScheduledExecution(final String dsId, final String ifaceId) throws DatasourceManagerException {
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final String xquery = "/*[.//DATAPROVIDER/@interface='" + ifaceId + "' and .//SCHEDULING/@enabled='true']//CRON/text()";
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| 205 |
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try {
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| 206 |
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final String cronExpression = serviceLocator.getService(ISLookUpService.class).getResourceProfileByQuery(xquery);
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final CronExpression cron = new CronExpression(cronExpression);
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| 208 |
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return cron.getNextValidTimeAfter(new Date());
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} catch (final ISLookUpDocumentNotFoundException e) {
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// When the value is not found a null value must be returned
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| 211 |
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return null;
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| 212 |
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} catch (final ISLookUpException e) {
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| 213 |
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log.error("Error in xquery: " + xquery, e);
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throw new DatasourceManagerException(-1, "Error in xquery: " + xquery, e);
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} catch (final ParseException e) {
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| 216 |
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log.error("Error parsing cron expression", e);
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| 217 |
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throw new DatasourceManagerException(-1, "Error parsing cron expression", e);
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| 218 |
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}
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| 219 |
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}
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public UniqueServiceLocator getServiceLocator() {
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| 222 |
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return serviceLocator;
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| 223 |
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}
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| 224 |
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| 225 |
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@Required
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| 226 |
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public void setServiceLocator(final UniqueServiceLocator serviceLocator) {
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| 227 |
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this.serviceLocator = serviceLocator;
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}
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| 229 |
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public NamedParameterJdbcTemplate getJdbcTemplate() {
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| 231 |
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return jdbcTemplate;
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}
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| 233 |
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@Required
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| 235 |
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public void setJdbcTemplate(final NamedParameterJdbcTemplate jdbcTemplate) {
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| 236 |
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this.jdbcTemplate = jdbcTemplate;
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}
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| 238 |
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| 239 |
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}
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