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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.pesi.erms;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Map;
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import java.util.Set;
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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.io.common.IOValidator;
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import eu.etaxonomy.cdm.io.common.mapping.DbImportExtensionCreationMapper;
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import eu.etaxonomy.cdm.io.common.mapping.DbImportMapping;
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import eu.etaxonomy.cdm.io.common.mapping.DbNotYetImplementedMapper;
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import eu.etaxonomy.cdm.io.pesi.erms.validation.ErmsLinkImportValidator;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.common.Extension;
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import eu.etaxonomy.cdm.model.common.ExtensionType;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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/**
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 * @author a.mueller
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 * @created 20.02.2010
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 * @version 1.0
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 */
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@Component
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public class ErmsLinkImport  extends ErmsImportBase<TaxonBase> {
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	private static final Logger logger = Logger.getLogger(ErmsLinkImport.class);
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	private DbImportMapping mapping;
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	private int modCount = 10000;
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	private static final String pluralString = "links";
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	private static final String dbTableName = "links";
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	private static final Class cdmTargetClass = Extension.class;
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	public ErmsLinkImport(){
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		super(pluralString, dbTableName, cdmTargetClass);
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.cdm.io.berlinModel.in.BerlinModelImportBase#getRecordQuery(eu.etaxonomy.cdm.io.berlinModel.in.BerlinModelImportConfigurator)
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	 */
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	@Override
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	protected String getRecordQuery(ErmsImportConfigurator config) {
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		String strRecordQuery = 
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			" SELECT * " + 
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			" FROM links " +
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			" WHERE ( links.id IN (" + ID_LIST_TOKEN + ") )";
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		return strRecordQuery;
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.cdm.io.erms.ErmsImportBase#getMapping()
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	 */
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	protected DbImportMapping getMapping() {
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		if (mapping == null){
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			mapping = new DbImportMapping();
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			ExtensionType extensionType = ExtensionType.URL();
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			//TODO do we need to add to TaxonNameBase too?
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			mapping.addMapper(DbImportExtensionCreationMapper.NewInstance("tu_id", ErmsTaxonImport.TAXON_NAMESPACE, "link_url", "id", extensionType)); 
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			//not yet implemented
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			mapping.addMapper(DbNotYetImplementedMapper.NewInstance("link_text"));  //maybe implement as a second extension ?? but this is ambigous!
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			mapping.addMapper(DbNotYetImplementedMapper.NewInstance("link_fn"));
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			mapping.addMapper(DbNotYetImplementedMapper.NewInstance("note"));
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		}
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		return mapping;
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.cdm.io.berlinModel.in.IPartitionedIO#getRelatedObjectsForPartition(java.sql.ResultSet)
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	 */
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	public Map<Object, Map<String, ? extends CdmBase>> getRelatedObjectsForPartition(ResultSet rs) {
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		String nameSpace;
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		Class cdmClass;
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		Set<String> idSet;
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		Map<Object, Map<String, ? extends CdmBase>> result = new HashMap<Object, Map<String, ? extends CdmBase>>();
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		try{
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			Set<String> taxonIdSet = new HashSet<String>();
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			Set<String> languageIdSet = new HashSet<String>();
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			while (rs.next()){
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				handleForeignKey(rs, taxonIdSet, "tu_id");
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			}
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			//taxon map
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			nameSpace = TAXON_NAMESPACE;
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			cdmClass = TaxonBase.class;
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			idSet = taxonIdSet;
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			Map<String, TaxonBase> taxonMap = (Map<String, TaxonBase>)getCommonService().getSourcedObjectsByIdInSource(cdmClass, idSet, nameSpace);
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			result.put(nameSpace, taxonMap);
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		} catch (SQLException e) {
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			throw new RuntimeException(e);
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		}
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		return result;
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.cdm.io.common.CdmIoBase#doCheck(eu.etaxonomy.cdm.io.common.IImportConfigurator)
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	 */
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	@Override
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	protected boolean doCheck(ErmsImportState state){
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		IOValidator<ErmsImportState> validator = new ErmsLinkImportValidator();
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		return validator.validate(state);
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.cdm.io.common.CdmIoBase#isIgnore(eu.etaxonomy.cdm.io.common.IImportConfigurator)
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	 */
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	protected boolean isIgnore(ErmsImportState state){
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		return ! state.getConfig().isDoLinks();
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	}
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}
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