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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 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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/**
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* @author a.mueller
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* @created 12.05.2009
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* @version 1.0
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*/
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public class DbStringMapper extends DbSingleAttributeExportMapperBase<DbExportStateBase<?, IExportTransformer>> implements IDbExportMapper<DbExportStateBase<?,IExportTransformer>, IExportTransformer> {
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private static final Logger logger = Logger.getLogger(DbStringMapper.class);
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private static final int MAX_PRECISION = -1; //precision for datatype nvarchar(max) == clob (SQL Server 2008)
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private boolean blankToNull = false;
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public static DbStringMapper NewInstance(String cdmAttributeString, String dbAttributeString){
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return new DbStringMapper(cdmAttributeString, dbAttributeString, null, true);
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}
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public static DbStringMapper NewFacultativeInstance(String cdmAttributeString, String dbAttributeString){
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return new DbStringMapper(cdmAttributeString, dbAttributeString, null, false);
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}
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public static DbStringMapper NewInstance(String cdmAttributeString, String dbAttributeString, String defaultValue){
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return new DbStringMapper(cdmAttributeString, dbAttributeString, defaultValue, false);
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}
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public static DbStringMapper NewInstance(String cdmAttributeString, String dbAttributeString, String defaultValue, boolean obligatory){
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return new DbStringMapper(cdmAttributeString, dbAttributeString, defaultValue, obligatory);
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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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private DbStringMapper(String cdmAttributeString, String dbAttributeString, String defaultValue, boolean obligatory) {
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super(cdmAttributeString, dbAttributeString, defaultValue, obligatory);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.io.berlinModel.out.mapper.DbSingleAttributeExportMapperBase#getValue(eu.etaxonomy.cdm.model.common.CdmBase)
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*/
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@Override
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protected Object getValue(CdmBase cdmBase) {
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String result = (String)super.getValue(cdmBase);
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if (isBlankToNull() && StringUtils.isBlank(result)){
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result = null;
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}
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if (result != null){
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if (result.startsWith(" ") || result.endsWith(" ")){
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result = result.trim();
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}
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//truncate if needed
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if (result.length() > getPrecision() && getPrecision() != MAX_PRECISION && getPrecision() > 0){
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logger.warn("Truncation (" + result.length() + "->" + getPrecision() + ") needed for Attribute " + getDestinationAttribute() + " in " + cdmBase + "." );
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result = result.substring(0, getPrecision());
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}
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}
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return result;
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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 DbStringMapper setBlankToNull(boolean blankToNull) {
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this.blankToNull = blankToNull;
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return this;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.io.berlinModel.out.mapper.DbSingleAttributeExportMapperBase#getValueType()
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*/
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@Override
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protected int getSqlType() {
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return Types.VARCHAR;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.io.common.CdmSingleAttributeMapperBase#getTypeClass()
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*/
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@Override
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public Class<?> getTypeClass() {
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return String.class;
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}
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}
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