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/**
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* Copyright (C) 2009 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.database.update;
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import java.sql.SQLException;
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import java.util.List;
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import java.util.UUID;
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import org.apache.log4j.Logger;
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import eu.etaxonomy.cdm.common.monitor.IProgressMonitor;
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import eu.etaxonomy.cdm.database.ICdmDataSource;
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/**
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* Swaps a relationship. The related_from object becomes the related_to object
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* and vice versa. Also the relationship type label and inverse label are swapped.
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*
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* @author a.mueller
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* @since 07.11.2020
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*/
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public class RelationSwapper extends AuditedSchemaUpdaterStepBase {
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private static final Logger logger = Logger.getLogger(RelationSwapper.class);
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private static final int PLACEHOLDER = -987;
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private String relTypeColumnName;
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private UUID uuidRelationType;
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private String newTitleCache;
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private String newIdInVocabulary;
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/**
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* @param tableName the relations table name
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* @param uuidRelationType
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* @param newIdInVocabulary if not <code>null</code> the newIdInVocabulary is updated
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* @return
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*/
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public static final RelationSwapper NewInstance(List<ISchemaUpdaterStep> stepList, String stepName,
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String tableName, UUID uuidRelationType, String relTypeColumnName,
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String newTitleCache, String newIdInVocabulary, boolean includeAudit){
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return new RelationSwapper(stepList, stepName, tableName, uuidRelationType,
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relTypeColumnName, newTitleCache, newIdInVocabulary, includeAudit);
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}
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private RelationSwapper(List<ISchemaUpdaterStep> stepList, String stepName,
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String tableName, UUID uuidRelationType, String relTypeColumnName,
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String newTitleCache, String newIdInVocabulary, boolean includeAudit) {
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super(stepList, stepName, tableName, includeAudit);
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this.uuidRelationType = uuidRelationType;
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this.relTypeColumnName = relTypeColumnName;
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this.newTitleCache = newTitleCache;
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this.newIdInVocabulary = newIdInVocabulary;
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}
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@Override
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protected void invokeOnTable(String tableName, ICdmDataSource datasource, IProgressMonitor monitor,
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CaseType caseType, SchemaUpdateResult result) {
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try {
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String defTermTable = this.isAuditing ? "DefinedTermBase_AUD": "DefinedTermBase ";
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String mnTable = this.isAuditing ? "DefinedTermBase_Representation_AUD": "DefinedTermBase_Representation ";
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String inverseMnTable = this.isAuditing ? "DefinedTermBase_InverseRepresentation_AUD": "DefinedTermBase_InverseRepresentation ";
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String audParams = this.isAuditing ? ", REV, REVTYPE ": "";
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//get relType id
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String sql = " SELECT id FROM %s WHERE uuid = '%s'";
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Integer termId = (Integer)datasource.getSingleValue(String.format(sql,
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caseType.transformTo(defTermTable) , this.uuidRelationType));
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if (termId == null || termId == 0){
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String message = "RelationshipType term ("+uuidRelationType+") does not exist. Can't swap terms";
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monitor.warning(message);
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logger.warn(message);
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result.addError(message, this, "invoke");
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return;
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}
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//swap relatedFrom and relatedTo
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sql = " UPDATE %s "
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+ " SET relatedFrom_id = relatedTo_id, relatedTo_id = relatedFrom_id "
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+ " WHERE %s = %d ";
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sql = String.format(sql, caseType.transformTo(tableName), this.relTypeColumnName, termId);
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datasource.executeUpdate(sql);
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// insert inverse into not-inverse with placeholder term id
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sql = " INSERT INTO %s (definedTermBase_id, representations_id %s) "
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+ " SELECT %d, inverseRepresentations_id %s"
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+ " FROM %s "
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+ " WHERE DefinedTermBase_id = %d ";
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sql = String.format(sql, caseType.transformTo(mnTable),
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audParams, PLACEHOLDER, audParams, caseType.transformTo(inverseMnTable), termId);
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datasource.executeUpdate(sql);
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// delete inverse terms
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sql = " DELETE FROM %s WHERE definedTermBase_id = %d ";
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sql = String.format(sql, caseType.transformTo(inverseMnTable), termId);
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datasource.executeUpdate(sql);
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// insert not-inverse into inverse with placeholder term id
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sql = " INSERT INTO %s (definedTermBase_id, inverseRepresentations_id %s) "
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+ " SELECT definedTermBase_id, representations_id %s "
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+ " FROM %s "
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+ " WHERE DefinedTermBase_id = %d ";
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sql = String.format(sql, caseType.transformTo(inverseMnTable),
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audParams, audParams, caseType.transformTo(mnTable), termId);
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datasource.executeUpdate(sql);
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// delete inverse terms
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sql = " DELETE FROM %s WHERE definedTermBase_id = %d ";
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sql = String.format(sql, caseType.transformTo(mnTable), termId);
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datasource.executeUpdate(sql);
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// replace placeholder in former inverse terms
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sql = " UPDATE %s SET definedTermBase_id = %d WHERE definedTermBase_id = %d ";
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sql = String.format(sql, caseType.transformTo(mnTable), termId, PLACEHOLDER);
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datasource.executeUpdate(sql);
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//new titleCache
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//NOTE: of course better the titleCache would be computed then set manually, but in most
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//cases this should be ok for now
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if (this.newTitleCache != null){
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sql = " UPDATE %s SET titleCache = '%s' WHERE id = %d ";
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sql = String.format(sql, caseType.transformTo(defTermTable), newTitleCache , termId);
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datasource.executeUpdate(sql);
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}
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//new idInVoc
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if (this.newIdInVocabulary != null){
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sql = " UPDATE %s SET idInVocabulary = '%d' WHERE id = %d ";
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sql = String.format(sql, caseType.transformTo(defTermTable), newIdInVocabulary , termId);
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datasource.executeUpdate(sql);
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}
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//symbols
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//not yet implemented
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} catch (SQLException e) {
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String message = e.getMessage();
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monitor.warning(message, e);
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logger.error(e);
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result.addException(e, message, getStepName() + ", RelationSwapper.invokeOnTable");
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return;
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}
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return;
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}
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}
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