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package eu.dnetlib.functionality.modular.ui.lightui.objects;
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import java.io.StringReader;
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import java.util.List;
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import java.util.stream.Collectors;
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import javax.annotation.Resource;
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import com.google.common.collect.Lists;
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import eu.dnetlib.functionality.modular.ui.lightui.LightUIUtils;
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import eu.dnetlib.functionality.modular.ui.lightui.clients.ISLookupLightUIClient;
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import eu.dnetlib.functionality.modular.ui.lightui.clients.IndexLightUIClient;
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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.Element;
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import org.dom4j.Node;
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import org.dom4j.io.SAXReader;
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public class SearchFieldGrouper {
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private static final int maxBrowseValues = 100;
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private static final Log log = LogFactory.getLog(SearchFieldGrouper.class);
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@Resource
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private IndexLightUIClient indexClient;
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@Resource
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private ISLookupLightUIClient isLookupClient;
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public List<SearchField> getAllFields(final String lightuiId) {
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final List<SearchField> res = Lists.newArrayList();
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final SAXReader reader = new SAXReader();
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try {
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final Document doc = reader.read(new StringReader(isLookupClient.getLightUiProfile(lightuiId)));
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final Node searchNode = doc.selectSingleNode("//CONFIGURATION/SEARCH");
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final IndexConfiguration idx = LightUIUtils.calculateIndexConfiguration(searchNode);
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res.addAll(getPredefinedFields(searchNode));
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res.addAll(calculateBrowseFields(idx, searchNode));
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} catch (Exception e) {
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log.error("Error obtaining search fields", e);
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}
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return res;
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}
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private List<SearchField> calculateBrowseFields(final IndexConfiguration idx, final Node node) {
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try {
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return indexClient.browse("*=*", idx, LightUIUtils.getBrowseFields(node), maxBrowseValues)
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.stream()
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.map(r -> {
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final SearchField sf = new SearchField();
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sf.setField(r.getField());
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sf.setLabel(r.getLabel());
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sf.setOperator("exact");
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sf.setPredefinedValues(
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r.getValues().stream()
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.map(bv -> new ValueWithLabel(bv.getValue() + " (" + bv.getSize() + ")", bv.getValue()))
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.collect(Collectors.toList()));
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return sf;
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})
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.collect(Collectors.toList());
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} catch (Exception e) {
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log.warn("Error executing default browse query", e);
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return Lists.newArrayList();
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}
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}
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private List<SearchField> getPredefinedFields(final Node node) {
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final List<SearchField> list = Lists.newArrayList();
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for (Object o : node.selectNodes(".//TEXT_FIELD")) {
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final String id = ((Element) o).valueOf("@id");
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final String label = ((Element) o).valueOf("@label");
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final String operator = ((Element) o).valueOf("@operator");
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list.add(new SearchField(id, label, operator));
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}
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for (Object o : node.selectNodes(".//SELECT_FIELD")) {
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final String id = ((Element) o).valueOf("@id");
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final String label = ((Element) o).valueOf("@label");
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final String operator = ((Element) o).valueOf("@operator");
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final List<ValueWithLabel> values = Lists.newArrayList();
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for (Object v : ((Element) o).selectNodes("./VALUE")) {
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final String v_id = ((Element) v).valueOf("@id");
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final String v_label = ((Element) v).valueOf("@label");
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values.add(new ValueWithLabel(v_label, v_id));
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}
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list.add(new SearchField(id, label, operator, values));
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}
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return list;
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}
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}
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