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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.out;
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import java.sql.Types;
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import java.util.EnumSet;
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import java.util.HashSet;
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import java.util.Set;
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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.common.DbExportStateBase;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementSource;
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import eu.etaxonomy.cdm.model.reference.Reference;
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/**
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* Maps distribution to a database foreign key or cache field.
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* Requires according transformer implementation.
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* @author a.mueller
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* @created 06.02.2012
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*/
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public class DbSingleSourceMapper extends DbSingleAttributeExportMapperBase<DbExportStateBase<?, IExportTransformer>> implements IDbExportMapper<DbExportStateBase<?, IExportTransformer>, IExportTransformer>{
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private static final Logger logger = Logger.getLogger(DbSingleSourceMapper.class);
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public enum EXCLUDE{
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NONE,
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WITH_ID,
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WITH_NAMESPACE
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}
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public static int EXCLUDE_NONE = 0;
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public static int EXCLUDE_WITH_ID = 1;
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public static int EXCLUDE_WITH_NAMESPACE = 2;
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private boolean isCache = false;
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private final EnumSet<EXCLUDE> exclude;
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public static DbSingleSourceMapper NewInstance(String dbAttributeString, EnumSet<EXCLUDE> exclude, boolean isCache){
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return new DbSingleSourceMapper(dbAttributeString, exclude, isCache, null);
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}
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/**
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* @param dbAttributeString
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* @param cdmAttributeString
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*/
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protected DbSingleSourceMapper(String dbAttributeString, EnumSet<EXCLUDE> exclude, boolean isCache, Object defaultValue) {
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super("sources", dbAttributeString, defaultValue);
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this.isCache = isCache;
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this.exclude = exclude;
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}
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@Override
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protected Object getValue(CdmBase cdmBase) {
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//TODO implement also for Identifiable sources
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if (cdmBase.isInstanceOf(DescriptionElementBase.class)){
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//find source candidates
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DescriptionElementBase el = CdmBase.deproxy(cdmBase, DescriptionElementBase.class);
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Set<DescriptionElementSource> sourceCandidates = el.getSources();
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Set<DescriptionElementSource> filteredSources = new HashSet<DescriptionElementSource>();
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for (DescriptionElementSource sourceCandidate : sourceCandidates){
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if (isPesiSource(sourceCandidate)){ //TODO pesi should not appear here
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filteredSources.add(sourceCandidate);
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}
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}
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//filter
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if (filteredSources.size() == 0 ){
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return null;
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}else if (filteredSources.size() > 1){
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logger.warn("There is more than 1 accepted source for description element " + el.getUuid() + ". Arbitrary first source is used.");
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}
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DescriptionElementSource source = filteredSources.iterator().next();
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Reference ref = source.getCitation();
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if (ref == null){
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logger.warn("Citation is missing for description element (" + el.getUuid() + ") source.");
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return null;
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}
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if (isCache){
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return ref.getTitleCache();
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}else{
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return getState().getDbId(ref);
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}
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}else{
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throw new ClassCastException("CdmBase for "+this.getClass().getName() +" must be of type DescriptionElementBase, but was " + cdmBase.getClass());
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}
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}
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private boolean isPesiSource(DescriptionElementSource source) {
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boolean result = true;
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if ( exclude.contains(EXCLUDE.NONE)){
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return true;
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}
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if ( exclude.contains(EXCLUDE.WITH_ID)){
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result &= StringUtils.isBlank(source.getIdInSource());
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}else if ( exclude.contains(EXCLUDE.WITH_NAMESPACE)){
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result &= StringUtils.isBlank(source.getIdNamespace());
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}else{
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logger.warn("isPesiSource case not yet handled for " + this.exclude);
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}
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return result;
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}
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@Override
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protected int getSqlType() {
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if (isCache){
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return Types.VARCHAR;
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}else{
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return Types.INTEGER;
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}
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}
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@Override
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public Class<?> getTypeClass() {
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if (isCache){
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return String.class;
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}else{
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return Integer.class;
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}
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}
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}
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