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package eu.dnetlib.msro.workers.aggregation.cleaner;
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import java.io.StringReader;
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import java.util.Set;
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import org.dom4j.Document;
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import org.dom4j.Element;
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import org.dom4j.io.SAXReader;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import com.google.common.base.Splitter;
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import com.google.common.collect.Sets;
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import eu.dnetlib.clients.is.InformationServiceClient;
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import eu.dnetlib.msro.exceptions.MSROException;
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@Component
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public class CleaningRuleFactory {
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@Autowired
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private InformationServiceClient isClient;
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public CleaningRule obtainCleaningRule(final String ruleId) throws MSROException {
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try {
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final String prof =
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isClient.findOne("/RESOURCE_PROFILE[.//RESOURCE_IDENTIFIER/@value='" + ruleId + "' or .//CLEANER_NAME='" + ruleId + "']//CONFIGURATION");
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final SAXReader reader = new SAXReader();
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final Document doc = reader.read(new StringReader(prof));
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final CleaningRule rule = new CleaningRule();
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for (final Object o : doc.selectNodes("//RULE")) {
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final Element node = (Element) o;
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final String xpath = node.valueOf("@xpath");
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final String vocabularies = node.valueOf("@vocabularies");
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final String groovyRule = node.valueOf("@groovy");
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final String strict = node.valueOf("@strict");
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final XPATHCleaningRule xpathRule;
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if ((vocabularies != null) && (vocabularies.length() > 0)) {
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final Set<String> list = Sets.newHashSet(Splitter.on(",").omitEmptyStrings().trimResults().split(vocabularies));
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xpathRule = new VocabularyRule(list, isClient);
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} else {
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xpathRule = new GroovyRule(groovyRule);
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}
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xpathRule.setXpath(xpath);
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xpathRule.setStrict("true".equals(strict));
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rule.getXpathRules().add(xpathRule);
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}
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return rule;
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} catch (final Exception e) {
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throw new MSROException("Error obtaing cleaner rule " + ruleId, e);
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}
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}
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}
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