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/**
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* Copyright (C) 2017 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.io.distribution.excelupdate;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Set;
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import java.util.UUID;
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import org.apache.log4j.Logger;
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import org.springframework.stereotype.Component;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.io.common.ImportResult;
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import eu.etaxonomy.cdm.io.excel.common.ExcelImportBase;
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import eu.etaxonomy.cdm.io.excel.common.ExcelRowBase;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.Distribution;
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import eu.etaxonomy.cdm.model.description.PresenceAbsenceTerm;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.location.NamedArea;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.term.DefinedTermBase;
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import eu.etaxonomy.cdm.model.term.TermVocabulary;
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/**
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* This Import class updates existing distributions with the new state
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* described in the Excel file. It requires that the data was exported
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* before in the defined format.
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*
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* TODO where is the export to be found?
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*
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* This class is initiated by #6524
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*
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* @author a.mueller
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* @since 04.04.2017
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*
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*/
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@Component
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public class ExcelDistributionUpdate
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extends ExcelImportBase<ExcelDistributionUpdateState, ExcelDistributionUpdateConfigurator, ExcelRowBase>{
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private static final long serialVersionUID = 621338661492857764L;
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private static final Logger logger = Logger.getLogger(ExcelDistributionUpdate.class);
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private static final String AREA_MAP = "AreaMap";
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void analyzeRecord(Map<String, String> record, ExcelDistributionUpdateState state) {
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// nothing to do
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void firstPass(ExcelDistributionUpdateState state) {
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Map<String, String> record = state.getOriginalRecord();
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String line = state.getCurrentLine() + ": ";
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String taxonUuid = getValue(record, "taxon_uuid");
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String taxonName = getValue(record, "Taxonname");
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if ("taxon_uuid".equals(taxonUuid)){
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return;
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}
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UUID uuidTaxon = UUID.fromString(taxonUuid);
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Taxon taxon = (Taxon)getTaxonService().find(uuidTaxon);
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if (taxon == null){
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String message = line + "Taxon for uuid not found: " + uuidTaxon;
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state.getResult().addError(message);
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}else{
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try {
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handleAreasForTaxon(state, taxon, record, line);
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} catch (Exception e) {
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String message = line + "An unexpected error occurred when handling %s (uuid: %s)";
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message = String.format(message, taxonName, taxonUuid);
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state.getResult().addError(message);
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state.getResult().addException(e);
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}
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}
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}
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/**
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* @param state
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* @param taxon
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* @param record
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* @param line
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*/
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private void handleAreasForTaxon(ExcelDistributionUpdateState state, Taxon taxon, Map<String, String> record,
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String line) {
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ImportResult result = state.getResult();
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Map<NamedArea, Set<Distribution>> existingDistributions = getExistingDistributions(state, taxon, line);
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Map<NamedArea, Distribution> newDistributions = getNewDistributions(state, record, line);
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TaxonDescription newDescription = TaxonDescription.NewInstance();
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newDescription.addImportSource(null, null, state.getConfig().getSourceReference(), "row " + state.getCurrentLine());
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newDescription.setTitleCache("Updated distributions for " + getTaxonLabel(taxon), true);
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Set<TaxonDescription> oldReducedDescriptions = new HashSet<>();
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for (NamedArea area : newDistributions.keySet()){
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Set<Distribution> existingDistrForArea = existingDistributions.get(area);
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boolean hasChange = false;
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Distribution newDistribution = newDistributions.get(area);
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if (existingDistrForArea == null || existingDistrForArea.isEmpty()){
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if (newDistribution != null){
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//new distribution exists, old distribution did not exist
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hasChange = true;
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}
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}else{
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for (Distribution existingDistr : existingDistrForArea){
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if (!isEqualDistribution(existingDistr, newDistribution)){
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//distribution changed or deleted
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if (state.getConfig().isCreateNewDistribution() || newDistribution == null ){
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DescriptionBase<?> inDescription = existingDistr.getInDescription();
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inDescription.removeElement(existingDistr);
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result.addDeletedRecord(existingDistr);
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hasChange = true;
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oldReducedDescriptions.add(CdmBase.deproxy(inDescription, TaxonDescription.class));
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}else{
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existingDistr.setStatus(newDistribution.getStatus());
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result.addUpdatedRecord(existingDistr);
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existingDistr.addImportSource(null, null, state.getConfig().getSourceReference(), "row "+state.getCurrentLine());
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}
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}else{
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// addSource? => not if nothing changed
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}
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}
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}
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if (hasChange && newDistribution != null){
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newDescription.addElement(newDistribution);
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result.addNewRecord(newDistribution);
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}
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}
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//add new description to taxon if any new element exists
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if (!newDescription.getElements().isEmpty()){
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taxon.addDescription(newDescription);
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result.addNewRecord(newDescription);
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}
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//remove old empty descriptions (oldReducedDescriptions) if really empty
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for (TaxonDescription desc : oldReducedDescriptions){
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if (desc.getElements().isEmpty()){
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desc.getTaxon().removeDescription(desc);
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result.addDeletedRecord(desc);
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}
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}
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}
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/**
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* @param taxon
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* @return
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*/
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private String getTaxonLabel(Taxon taxon) {
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return taxon.getName() == null ? taxon.getTitleCache() : taxon.getName().getTitleCache();
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}
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private Map<NamedArea, Distribution> getNewDistributions(ExcelDistributionUpdateState state,
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Map<String, String> record, String line) {
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Map<NamedArea, Distribution> result = new HashMap<>();
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Set<String> keys = record.keySet();
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keys = removeNonAreaKeys(keys);
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for (String key : keys){
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NamedArea area = getAreaByIdInVoc(state, key, line);
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if (area != null){
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String statusStr = record.get(key);
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PresenceAbsenceTerm status = getStatusByStatusStr(state, statusStr, line);
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if (status != null){
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Distribution distribution = Distribution.NewInstance(area, status);
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distribution.addImportSource(null, null, state.getConfig().getSourceReference(), "row " + state.getCurrentLine());
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Distribution previousDistribution = result.put(area, distribution);
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if (previousDistribution != null){
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String message = line + "Multiple distributions exist for same area (" + area.getTitleCache() + ") in input source";
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logger.warn(message);
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state.getResult().addWarning(message);
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}
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}else{
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result.put(area, null);
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}
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}else{
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//??
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}
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}
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return result;
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}
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/**
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* @param statusStr
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* @return
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*/
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private PresenceAbsenceTerm getStatusByStatusStr(ExcelDistributionUpdateState state, String statusStr, String line) {
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// FIXME replace hardcoded;
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if ("A".equals(statusStr)) {
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return PresenceAbsenceTerm.ABSENT();
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}else if ("P".equals(statusStr)) {
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return PresenceAbsenceTerm.PRESENT();
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}else if ("P?".equals(statusStr)) {
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return PresenceAbsenceTerm.PRESENT_DOUBTFULLY();
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}else if (isBlank(statusStr)){
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return null;
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}else{
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String message = line + "Status string not recognized: " + statusStr +". Status not imported.";
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logger.warn(message);
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state.getResult().addWarning(message);
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}
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return null;
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}
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/**
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* @param state
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* @param key
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* @param line
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* @return
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*/
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private NamedArea getAreaByIdInVoc(ExcelDistributionUpdateState state, String id, String line) {
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//TODO remember in state
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Map<String, NamedArea> areaMap = (Map<String, NamedArea>)state.getStatusItem(AREA_MAP);
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if (areaMap == null){
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areaMap = createAreaMap(state);
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state.putStatusItem(AREA_MAP, areaMap);
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}
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NamedArea area = areaMap.get(id);
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return area;
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}
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/**
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* @param state
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* @return
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*/
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private Map<String, NamedArea> createAreaMap(ExcelDistributionUpdateState state) {
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Map<String, NamedArea> result = new HashMap<>();
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TermVocabulary<?> voc = getVocabularyService().find(state.getConfig().getAreaVocabularyUuid());
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//TODO handle null
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for (DefinedTermBase<?> obj : voc.getTerms()){
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//TODO handle exception
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NamedArea area = CdmBase.deproxy(obj, NamedArea.class);
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String key = area.getIdInVocabulary();
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result.put(key, area);
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}
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return result;
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}
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/**
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* @param keys
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* @return
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*/
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private Set<String> removeNonAreaKeys(Set<String> keys) {
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Iterator<String> it = keys.iterator();
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while (it.hasNext()){
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if (it.next().matches("(Family|Taxonname|taxon_uuid)")){
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it.remove();
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}
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}
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return keys;
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}
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private boolean isEqualDistribution(Distribution existingDistribution, Distribution newDistribution) {
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if (existingDistribution == null || newDistribution == null){
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return existingDistribution == newDistribution;
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}
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if (existingDistribution.getArea().equals(newDistribution.getArea())){
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if (CdmUtils.nullSafeEqual(existingDistribution.getStatus(), newDistribution.getStatus())){
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return true;
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}
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}
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return false;
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}
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/**
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* @param state
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* @param taxon
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* @param line
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* @return
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*/
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private Map<NamedArea, Set<Distribution>> getExistingDistributions(
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ExcelDistributionUpdateState state, Taxon taxon,
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String line) {
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Map<NamedArea, Set<Distribution>> result = new HashMap<>();
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//TODO better use service layer call to return only distributions, this might be necessary if the list of description elements is large
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for (TaxonDescription desc : taxon.getDescriptions()){
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for (DescriptionElementBase descElem : desc.getElements()){
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if (descElem.isInstanceOf(Distribution.class)){
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Distribution distribution = CdmBase.deproxy(descElem, Distribution.class);
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NamedArea area = distribution.getArea();
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Set<Distribution> set = result.get(area);
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if (set == null){
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set = new HashSet<>();
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result.put(area, set);
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}
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set.add(distribution);
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}
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}
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}
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return result;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void secondPass(ExcelDistributionUpdateState state) {
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// nothing to do
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected boolean isIgnore(ExcelDistributionUpdateState state) {
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return false;
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}
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@Override
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protected boolean needsNomenclaturalCode() {
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return false;
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}
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}
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