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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.common.mapping;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.Set;
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import org.apache.log4j.Logger;
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import eu.etaxonomy.cdm.io.common.DbImportStateBase;
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import eu.etaxonomy.cdm.io.common.IImportConfigurator;
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import eu.etaxonomy.cdm.io.common.mapping.out.DbStringMapper;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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/**
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* @author a.mueller
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* @since 12.05.2009
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*/
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public class DbImportMapping<STATE extends DbImportStateBase, CONFIG extends IImportConfigurator>
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extends CdmIoMapping {
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private static final Logger logger = Logger.getLogger(DbImportMapping.class);
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private boolean isInitialized = false;
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private Class<? extends CdmBase> destinationClass;
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private DbImportMapping<STATE, CONFIG> secondPathMapping;
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private boolean blankToNull = false;
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public boolean initialize(DbImportStateBase<?,?> state, Class<? extends CdmBase> destinationClass){
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if (!isInitialized){
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// this.dbTableName = tableName;
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this.destinationClass = destinationClass;
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for (CdmMapperBase mapper: this.mapperList){
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if (mapper instanceof IDbImportMapper){
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((IDbImportMapper<DbImportStateBase<?,?>,? extends CdmBase>) mapper ).initialize(state, destinationClass);
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}else{
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logger.warn("Mapper type " + mapper.getClass().getSimpleName() + " not yet implemented for DB import mapping");
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}
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}
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isInitialized = true;
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if (secondPathMapping != null){
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secondPathMapping.initialize(state, destinationClass);
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}
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}
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return true;
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}
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@Override
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public void addMapper(CdmAttributeMapperBase mapper){
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super.addMapper(mapper);
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if (mapper instanceof DbStringMapper){
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((DbStringMapper)mapper).setBlankToNull(isBlankToNull());
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}
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}
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/**
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* Invokes the second path mapping if one has been defined
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* @param rs
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* @param objectsToSave
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* @return
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* @throws SQLException
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*/
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public boolean invoke(ResultSet rs, Set<CdmBase> objectsToSave) throws SQLException{
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return invoke(rs, objectsToSave, false);
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}
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/**
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* Invokes the mapping. If secondPath is true, the secondPath mapping is invoked if it exists.
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*/
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public boolean invoke(ResultSet rs, Set<CdmBase> objectsToSave, boolean secondPath) throws SQLException{
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boolean result = true;
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if (secondPath == true && secondPathMapping != null){
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return secondPathMapping.invoke(rs, objectsToSave);
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} else {
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CdmBase objectToSave = null;
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// try {
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for (CdmMapperBase mapper : this.mapperList){
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if (mapper instanceof IDbImportMapper){
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@SuppressWarnings("unchecked")
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IDbImportMapper<DbImportStateBase<?,?>,CdmBase> dbMapper = (IDbImportMapper<DbImportStateBase<?,?>,CdmBase>)mapper;
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try {
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objectToSave = dbMapper.invoke(rs, objectToSave);
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} catch (Exception e) {
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result = false;
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logger.error("Error occurred in mapping.invoke of mapper " + dbMapper.toString());
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e.printStackTrace();
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continue;
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}
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}else{
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logger.warn("mapper is not of type " + IDbImportMapper.class.getSimpleName());
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}
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}
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if (objectToSave != null){
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objectsToSave.add(objectToSave);
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}else{
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logger.warn("The objectToSave was (null). Please check that your mappers work correctly.");
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}
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return result;
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}
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}
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public void setSecondPathMapping(DbImportMapping<STATE, CONFIG> secondPathMapping){
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this.secondPathMapping = secondPathMapping;
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}
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/**
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* If <code>true</code> all {@link DbStringMapper} map blank strings to <code>null</code>
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* @return
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*/
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public boolean isBlankToNull() {
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return blankToNull;
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}
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/**
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* @see #isBlankToNull()
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* @param blankToNull
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*/
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public void setBlankToNull(boolean blankToNull) {
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this.blankToNull = blankToNull;
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}
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}
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