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50420
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claudio.at
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package eu.dnetlib.msro.openaireplus.workflows.nodes;
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import java.io.StringReader;
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import java.util.Set;
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import javax.xml.ws.wsaddressing.W3CEndpointReference;
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import com.googlecode.sarasvati.Arc;
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import com.googlecode.sarasvati.NodeToken;
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import eu.dnetlib.enabling.datasources.LocalOpenaireDatasourceManager;
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import eu.dnetlib.enabling.resultset.MappedResultSetFactory;
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import eu.dnetlib.enabling.resultset.client.utils.EPRUtils;
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import eu.dnetlib.msro.workflows.nodes.SimpleJobNode;
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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.DocumentException;
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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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public class FilterManagedDatasourcesJobNode extends SimpleJobNode {
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private static final Log log = LogFactory.getLog(FilterManagedDatasourcesJobNode.class);
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private String inputEprParam;
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private String outputEprParam;
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@Autowired
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private LocalOpenaireDatasourceManager dsManager;
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@Autowired
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private MappedResultSetFactory mappedResultSetFactory;
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@Override
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protected String execute(final NodeToken token) throws Exception {
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final W3CEndpointReference inputEpr = new EPRUtils().getEpr(token.getEnv().getAttribute(getInputEprParam()));
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final Set<String> managedDatasources = dsManager.listManagedDatasourceIds();
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log.info(String.format("found %s managed datasources", managedDatasources.size()));
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final W3CEndpointReference outputEpr = mappedResultSetFactory.createMappedResultSet(inputEpr, s -> filterManaged(s, managedDatasources));
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token.getEnv().setAttribute(getOutputEprParam(), outputEpr.toString());
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return Arc.DEFAULT_ARC;
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}
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/**
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* Extracts the datasource id from the input record and checks its existence in the given set.
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* @param data
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* @param filter
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* @return The
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* @throws IllegalStateException
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*/
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private String filterManaged(final String data, Set<String> filter) throws IllegalStateException {
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try {
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final Document doc = new SAXReader().read(new StringReader(data));
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final String dsId = doc.valueOf("/record/metadata/ROWS/ROW[@table = 'dsm_datasources']/FIELD[@name = 'id']/text()");
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if (filter.contains(dsId)) {
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doc.selectSingleNode("/record/metadata/ROWS").detach();
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((Element) doc.selectSingleNode("/record/metadata")).addElement("ROWS");
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return doc.asXML();
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} else return data;
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} catch (DocumentException e) {
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throw new IllegalStateException(e);
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}
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}
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public String getInputEprParam() {
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return inputEprParam;
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}
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public void setInputEprParam(final String inputEprParam) {
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this.inputEprParam = inputEprParam;
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}
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public String getOutputEprParam() {
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return outputEprParam;
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}
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public void setOutputEprParam(final String outputEprParam) {
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this.outputEprParam = outputEprParam;
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}
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}
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