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package eu.dnetlib.oai.conf;
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import java.util.List;
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import java.util.function.Function;
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import javax.annotation.Resource;
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import org.apache.commons.lang3.StringUtils;
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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.DocumentException;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.Cacheable;
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import eu.dnetlib.enabling.locators.UniqueServiceLocator;
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import eu.dnetlib.miscutils.functional.xml.ApplyXslt;
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import eu.dnetlib.rmi.enabling.ISLookUpDocumentNotFoundException;
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import eu.dnetlib.rmi.enabling.ISLookUpException;
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import eu.dnetlib.rmi.enabling.ISLookUpService;
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import eu.dnetlib.rmi.provision.MDFInfo;
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import eu.dnetlib.rmi.provision.OaiPublisherRuntimeException;
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/**
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* Helper class for common queries to the IS.
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*
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* @author alessia
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*/
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public class OAIISLookUpClient {
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private static final Log log = LogFactory.getLog(OAIISLookUpClient.class); // NOPMD by marko on 11/24/08 5:02 PM
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@Value("${services.oai.publisher.db.xquery}")
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private String xpathToCurrentDB;
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/**
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* lookup service.
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*/
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@Resource
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private UniqueServiceLocator serviceLocator;
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@Resource
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private OAIConfigurationExistReader configuration;
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public List<MDFInfo> listMetadataFormats(final boolean onlyEnabled) throws ISLookUpException, DocumentException {
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return this.configuration.getMetadataFormatInfo(onlyEnabled);
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}
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@Cacheable(value = "unaryFunctions", key = "#tdsRuleId")
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public Function<String, String> getUnaryFunctionFromTDSRule(final String tdsRuleId) {
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log.fatal("Not using cache to get TDSRule " + tdsRuleId);
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final String queryCodeRule = "//RESOURCE_PROFILE[.//RESOURCE_IDENTIFIER/@value='" + tdsRuleId
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+ "']/BODY/CONFIGURATION/SCRIPT/CODE/*[local-name()='stylesheet']";
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String xsltCode = null;
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try {
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xsltCode = this.serviceLocator.getService(ISLookUpService.class).getResourceProfileByQuery(queryCodeRule);
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} catch (final ISLookUpDocumentNotFoundException e) {
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log.fatal("Unexisting TDSRule profile with identifier " + tdsRuleId);
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throw new OaiPublisherRuntimeException(e);
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} catch (final ISLookUpException e) {
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throw new OaiPublisherRuntimeException(e);
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}
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if (StringUtils.isBlank(xsltCode)) {
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log.warn("Unexpected blank stylesheet in TDSRule profile with id: " + tdsRuleId + ". Returning identity function.");
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return it -> it;
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} else {
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return new ApplyXslt(xsltCode);
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}
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}
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@Cacheable("oaiDB")
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public String getCurrentDB() throws ISLookUpDocumentNotFoundException, ISLookUpException {
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log.fatal("Not using cache to get the current OAI db");
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final String currentDBName = this.serviceLocator.getService(ISLookUpService.class).getResourceProfileByQuery(this.xpathToCurrentDB);
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log.info("Current OAI DB:" + currentDBName);
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return currentDBName;
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}
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@CacheEvict(value = { "unaryFunctions", "oaiDB" }, allEntries = true, beforeInvocation = true)
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public void evictCaches() {
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log.info("Evicted caches oaiDB and unaryFunctions");
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}
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public OAIConfigurationExistReader getConfiguration() {
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return this.configuration;
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}
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public void setConfiguration(final OAIConfigurationExistReader configuration) {
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this.configuration = configuration;
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}
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}
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