DateTimePartExpressionImpl.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it).
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openspcoop2.generic_project.expression.impl;

import org.openspcoop2.generic_project.beans.ComplexField;
import org.openspcoop2.generic_project.beans.IField;
import org.openspcoop2.generic_project.expression.impl.formatter.IObjectFormatter;
import org.openspcoop2.utils.LoggerWrapperFactory;
import org.openspcoop2.utils.TipiDatabase;
import org.openspcoop2.utils.sql.DateTimePartEnum;
import org.openspcoop2.utils.sql.SQLObjectFactory;
import org.openspcoop2.utils.sql.SQLQueryObjectCore;

/**
 * DateTimePartExpressionImpl
 * 
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class DateTimePartExpressionImpl extends AbstractCommonFieldValueBaseExpressionImpl {

    protected DateTimePartEnum dateTimePartEnum;
    
    public DateTimePartExpressionImpl(IObjectFormatter objectFormatter,IField field,String value,DateTimePartEnum dateTimePartEnum){
        super(objectFormatter, field, value);
        this.dateTimePartEnum = dateTimePartEnum;
    }

    @Override
    public String toString(){
        try {
            StringBuilder bf = new StringBuilder();
            if(isNot()){
                bf.append("( NOT ");
            }
            bf.append("( ");
    
            SQLQueryObjectCore sqlQueryObject = (SQLQueryObjectCore) SQLObjectFactory.createSQLQueryObject(TipiDatabase.POSTGRESQL); // lo uso come default
            
            String prefix = sqlQueryObject.getExtractDateTimePartFromTimestampFieldPrefix(this.dateTimePartEnum);
            bf.append(prefix);
            
            if(this.field instanceof ComplexField){
                ComplexField cf = (ComplexField) this.field;
                if(cf.getFather()!=null){
                    bf.append(cf.getFather().getFieldName());
                }else{
                    bf.append(this.field.getClassName());
                }
            }else{
                bf.append(this.field.getClassName());
            }
            bf.append(".");
            bf.append(this.field.getFieldName());
    
            String suffix = sqlQueryObject.getExtractDateTimePartFromTimestampFieldSuffix(this.dateTimePartEnum);
            bf.append(" ");
            bf.append(suffix);
            
            bf.append(" = '");
            bf.append(this.value);
            bf.append("'");
            
            bf.append(" )");
            if(isNot()){
                bf.append(" )");
            }
            return bf.toString();
        }catch(Exception e){
            LoggerWrapperFactory.getLogger(DateTimePartExpressionImpl.class).error(e.getMessage(),e);
            return " Errore DateTimePart: "+e.getMessage();
        }
    }
    

}