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package eu.dnetlib.data.transformation.service;
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import java.util.function.UnaryOperator;
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import javax.xml.transform.TransformerConfigurationException;
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import javax.xml.transform.TransformerFactory;
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import eu.dnetlib.common.profile.ProfileNotFoundException;
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import eu.dnetlib.common.profile.ResourceDao;
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import eu.dnetlib.data.collective.transformation.VocabularyRegistry;
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import eu.dnetlib.data.collective.transformation.engine.SimpleTransformationEngine;
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import eu.dnetlib.data.collective.transformation.engine.core.TransformationImpl;
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import eu.dnetlib.data.collective.transformation.utils.TransformationRulesImportTool;
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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.core.io.Resource;
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public class SimpleDataTransformer implements UnaryOperator<String> {
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/**
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* logger.
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*/
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private static final Log log = LogFactory.getLog(SimpleDataTransformer.class);
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/**
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* Transformation rule profile
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*/
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private String ruleProfile;
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private SimpleTransformationEngine transformationEngine;
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private TransformerFactory saxonTransformerFactory;
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public SimpleDataTransformer(final String ruleProfile, TransformerFactory transformerFactory) {
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this.saxonTransformerFactory = transformerFactory;
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this.ruleProfile = ruleProfile;
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// TODO
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// instantiate here the xml transformer
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if (log.isDebugEnabled()) {
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log.debug("************************************************************");
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log.debug("New transformer created from profile " + ruleProfile);
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log.debug("************************************************************");
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}
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}
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@Override
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public String apply(String record) {
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if (log.isDebugEnabled()) {
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log.debug("************************************************************");
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log.debug("INPUT: " + record);
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log.debug("************************************************************");
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}
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final String output = transform(record);
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if (log.isDebugEnabled()) {
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log.debug("************************************************************");
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log.debug("OUTPUT: " + output);
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log.debug("************************************************************");
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}
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return output;
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}
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private String transform(String record) {
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// use here the xml transformer
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return transformationEngine.transform(record);
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}
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protected void setupEngine(VocabularyRegistry vocabularyRegistry, Resource transformationTemplate,
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Resource defaultSchema, TransformationRulesImportTool rulesProfileUtil, ResourceDao resourceDao, Resource blacklistApi)
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throws TransformerConfigurationException, ProfileNotFoundException {
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transformationEngine = new SimpleTransformationEngine(saxonTransformerFactory);
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transformationEngine.setVocabularyRegistry(vocabularyRegistry);
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TransformationImpl transformation = new TransformationImpl(saxonTransformerFactory);
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transformation.setSchema(defaultSchema);
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transformation.setTemplate(transformationTemplate);
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transformation.init();
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if (log.isDebugEnabled()) {
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log.debug("************************************************************");
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log.debug(ruleProfile);
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log.debug("************************************************************");
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}
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transformation.setRuleLanguageParser(rulesProfileUtil.getRuleLanguageParser(ruleProfile));
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transformation.configureTransformation();
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transformationEngine.setTransformation(transformation);
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transformationEngine.setResourceDao(resourceDao);
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transformationEngine.setBlacklistApi(blacklistApi);
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}
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public String getRuleProfile() {
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return ruleProfile;
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}
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public void setRuleProfile(String ruleProfile) {
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this.ruleProfile = ruleProfile;
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}
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}
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