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/**
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* Copyright (C) 2007 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.berlinModel.in.validation;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import org.apache.commons.lang.StringUtils;
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import org.apache.log4j.Logger;
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import eu.etaxonomy.cdm.io.berlinModel.in.BerlinModelImportConfigurator;
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import eu.etaxonomy.cdm.io.berlinModel.in.BerlinModelImportState;
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import eu.etaxonomy.cdm.io.common.IOValidator;
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import eu.etaxonomy.cdm.io.common.Source;
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/**
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 * @author a.mueller
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 * @created 17.02.2010
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 */
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public class BerlinModelTaxonImportValidator implements IOValidator<BerlinModelImportState>{
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	private static final Logger logger = Logger.getLogger(BerlinModelTaxonImportValidator.class);
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	@Override
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	public boolean validate(BerlinModelImportState state){
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		boolean result = true;
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		BerlinModelImportConfigurator bmiConfig = state.getConfig();
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//		result &= checkTaxonStatus(bmiConfig); //handled by TaxonRelationValidator
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		result &= checkInactivated(bmiConfig);
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		return result;
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	}
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	private boolean checkTaxonStatus(BerlinModelImportConfigurator bmiConfig){
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		try {
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			boolean result = true;
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			Source source = bmiConfig.getSource();
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			String strSQL = " SELECT RelPTaxon.RelQualifierFk, RelPTaxon.relPTaxonId, PTaxon.PTNameFk, PTaxon.PTRefFk, PTaxon_1.PTNameFk AS Expr1, PTaxon.RIdentifier, PTaxon_1.RIdentifier AS Expr3, Name.FullNameCache "  +
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				" FROM RelPTaxon " + 
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					" INNER JOIN PTaxon ON RelPTaxon.PTNameFk1 = PTaxon.PTNameFk AND RelPTaxon.PTRefFk1 = PTaxon.PTRefFk " + 
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					" INNER JOIN PTaxon AS PTaxon_1 ON RelPTaxon.PTNameFk2 = PTaxon_1.PTNameFk AND RelPTaxon.PTRefFk2 = PTaxon_1.PTRefFk  " + 
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					" INNER JOIN Name ON PTaxon.PTNameFk = Name.NameId " +
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				" WHERE (dbo.PTaxon.StatusFk = 1) AND ((RelPTaxon.RelQualifierFk = 7) OR (RelPTaxon.RelQualifierFk = 6) OR (RelPTaxon.RelQualifierFk = 2)) ";
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			ResultSet rs = source.getResultSet(strSQL);
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			boolean firstRow = true;
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			int i = 0;
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			while (rs.next()){
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				i++;
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				if (firstRow){
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					System.out.println("========================================================");
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					logger.warn("There are taxa that have a 'is synonym of' - relationship but having taxon status 'accepted'!");
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					System.out.println("========================================================");
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				}
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				int rIdentifier = rs.getInt("RIdentifier");
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				int nameFk = rs.getInt("PTNameFk");
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				int refFk = rs.getInt("PTRefFk");
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				int relPTaxonId = rs.getInt("relPTaxonId");
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				String taxonName = rs.getString("FullNameCache");
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				System.out.println("RIdentifier:" + rIdentifier + "\n  name: " + nameFk + 
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						"\n  taxonName: " + taxonName + "\n  refId: " + refFk + "\n  RelPTaxonId: " + relPTaxonId );
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				result = firstRow = false;
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			}
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			if (i > 0){
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				System.out.println(" ");
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			}
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			return result;
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		} catch (SQLException e) {
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			e.printStackTrace();
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			return false;
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		}
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	}
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	private boolean checkInactivated(BerlinModelImportConfigurator config){
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		try {
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			boolean result = true;
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			Source source = config.getSource();
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			String strSQL = " SELECT * "  +
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				" FROM PTaxon t " +
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					" INNER JOIN Name n ON t.PTNameFk = n.NameId " +
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				" WHERE (t.DoubtfulFlag = 'i') ";
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			if (StringUtils.isNotBlank(config.getTaxonTable())){
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				strSQL +=  String.format(" AND (t.RIdentifier IN " +
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                        " (SELECT RIdentifier FROM %s ))" , config.getTaxonTable()) ; 
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			}
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			strSQL += " ORDER BY t.ptRefFk, n.FullNameCache";
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			ResultSet rs = source.getResultSet(strSQL);
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			boolean firstRow = true;
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			int i = 0;
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			while (rs.next()){
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				i++;
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				if (firstRow){
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					System.out.println("========================================================");
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					System.out.println("There are taxa that have a doubtful flag 'i'(inactivated). Inactivated is not supported by CDM!");
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					System.out.println("========================================================");
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				}
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				int rIdentifier = rs.getInt("RIdentifier");
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				int nameFk = rs.getInt("PTNameFk");
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				int refFk = rs.getInt("PTRefFk");
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				String taxonName = rs.getString("FullNameCache");
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				System.out.println("RIdentifier:" + rIdentifier + "\n  nameId: " + nameFk + 
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						"\n  taxonName: " + taxonName + "\n  refId: " + refFk  );
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				result = firstRow = false;
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			}
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			if (i > 0){
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				System.out.println(" ");
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			}
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			return result;
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		} catch (SQLException e) {
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			e.printStackTrace();
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			return false;
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		}
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	}
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}
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