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package eu.dnetlib.data.collective.transformation.utils;
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import java.io.StringReader;
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import java.util.List;
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import org.apache.commons.text.StringEscapeUtils;
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import eu.dnetlib.common.profile.ProfileNotFoundException;
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import eu.dnetlib.data.collective.transformation.rulelanguage.RuleLanguageParser;
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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.tools.ServiceLocator;
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/**
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*
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* @author jochen
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* @since 1.2
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*/
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public class TransformationRulesImportTool {
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private ServiceLocator<ISLookUpService> lookupServiceLocator;
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/**
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* retrieves the transformation rule script of a transformation rule profile identified by a profile id
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* @param aProfileId
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* @return list of the transformation rule script and optionally profile id's of subscripts
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* @throws ProfileNotFoundException
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*/
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protected List<String> getScript(String aProfileId) throws ProfileNotFoundException{
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String xquery = "collection('/db/DRIVER/TransformationRuleDSResources')//RESOURCE_PROFILE[.//RESOURCE_IDENTIFIER/@value ='" +
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aProfileId + "']//CODE/child::node(), " +
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"for $id in (collection('/db/DRIVER/TransformationRuleDSResources')//RESOURCE_PROFILE[.//RESOURCE_IDENTIFIER/@value ='" +
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aProfileId + "']//IMPORTED/SCRIPT_REFERENCE/@id) return string($id)";
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List<String> queryResult;
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try {
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queryResult = lookupServiceLocator.getService().quickSearchProfile(xquery);
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if (!queryResult.isEmpty()){
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return queryResult;
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}else{
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throw new ProfileNotFoundException("no script found in profile for profileId: " + aProfileId);
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}
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} catch (ISLookUpException e) {
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throw new ProfileNotFoundException(e);
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}
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}
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protected void importRules(RuleLanguageParser aParser, String aProfileId) throws ProfileNotFoundException{
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List<String> profileQueryResult = getScript(aProfileId);
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String script = StringEscapeUtils.unescapeXml(profileQueryResult.get(0)); // the first entry contains the script
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if (script.trim().startsWith("<xsl:stylesheet")){
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aParser.setXslStylesheet(script.trim());
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}else{
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StringReader reader = new StringReader(script);
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aParser.parse(reader);
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if (aParser.getImportedScripts().size() != (profileQueryResult.size() - 1) ) throw new IllegalStateException(
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"invalid number of scripts to import: " + aParser.getImportedScripts().size() + " != " + profileQueryResult.size());
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// recursiv
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if (!aParser.getImportedScripts().isEmpty()){
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for (String importScriptProfileId: profileQueryResult.subList(1, profileQueryResult.size())){
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RuleLanguageParser childParser = new RuleLanguageParser();
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importRules(childParser, importScriptProfileId);
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aParser.addRulesFromParser(childParser);
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}
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}
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}
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}
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/**
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* gets the rule language parser, which creates the mapping of rules which is defined in a transformation rule script identified by the transformation rule profile id
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* @param aProfileId - id of the transformation rules profile
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* @return the rule language parser
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* @throws ProfileNotFoundException
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*/
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public RuleLanguageParser getRuleLanguageParser(String aProfileId) throws ProfileNotFoundException{
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RuleLanguageParser parser = new RuleLanguageParser();
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importRules(parser, aProfileId);
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return parser;
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}
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public ServiceLocator<ISLookUpService> getLookupServiceLocator() {
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return lookupServiceLocator;
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}
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public void setLookupServiceLocator(
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ServiceLocator<ISLookUpService> lookupServiceLocator) {
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this.lookupServiceLocator = lookupServiceLocator;
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}
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}
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