ComparatorExpressionImpl.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 java.util.ArrayList;
import java.util.List;

import org.openspcoop2.generic_project.beans.ComplexField;
import org.openspcoop2.generic_project.beans.IField;
import org.openspcoop2.generic_project.exception.ExpressionException;
import org.openspcoop2.generic_project.exception.ExpressionNotImplementedException;
import org.openspcoop2.generic_project.expression.impl.formatter.IObjectFormatter;

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

    private Object object;
    private Comparator comparator;
    
    public ComparatorExpressionImpl(IObjectFormatter objectFormatter,IField field,Object object,Comparator comparator){
        super(objectFormatter, field);
        this.object = object;
        this.comparator = comparator;
    }
    
    public Object getObject() {
        return this.object;
    }
    public void setObject(Object object) {
        this.object = object;
    }
    public Comparator getComparator() {
        return this.comparator;
    }
    public void setComparator(Comparator comparator) {
        this.comparator = comparator;
    }
    
    @Override
    public String toString(){
        StringBuilder bf = new StringBuilder();
        if(isNot()){
            bf.append("( NOT ");
        }
        bf.append("( ");
        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());
        bf.append(" ");
        bf.append(this.comparator.getOperatore());
        if(this.object!=null){
            bf.append(" ");
            try{
                bf.append(super.getObjectFormatter().toString(this.object));
            }catch(Exception e){
                return "ERROR: "+e.getMessage();
            }
        }
        bf.append(" )");
        if(isNot()){
            bf.append(" )");
        }
        return bf.toString();
    }


    @Override
    public List<Object> getFieldValues(IField field) throws ExpressionNotImplementedException, ExpressionException{
        List<Object> lista = null;
        if(this.field==null){
            return lista;
        }
        if(this.field.equals(field)){
            lista = new ArrayList<>();
            lista.add(this.object);
            return lista;
        }
        return lista;
    }
        

}