ConjunctionExpressionSQL.java

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 * Copyright (c) 2005-2025 Link.it srl (https://link.it).
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package org.openspcoop2.generic_project.expression.impl.sql;

import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.openspcoop2.generic_project.exception.ExpressionException;
import org.openspcoop2.generic_project.expression.impl.AbstractBaseExpressionImpl;
import org.openspcoop2.generic_project.expression.impl.ConjunctionExpressionImpl;
import org.openspcoop2.generic_project.expression.impl.formatter.IObjectFormatter;
import org.openspcoop2.utils.sql.ISQLQueryObject;

/**
 * ConjunctionExpressionSQL
 * 
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class ConjunctionExpressionSQL extends ConjunctionExpressionImpl implements ISQLExpression {

    @SuppressWarnings("unused")
    private ISQLFieldConverter sqlFieldConverter;
    
    public ConjunctionExpressionSQL(ISQLFieldConverter sqlFieldConverter,IObjectFormatter objectFormatter) {
        super(objectFormatter);
        this.sqlFieldConverter = sqlFieldConverter;
    }

    private String toSqlEngine(SQLMode mode,ISQLQueryObject sqlQueryObject, List<Object> oggettiPreparedStatement,Map<String, Object> oggettiJPA)throws ExpressionException{
        StringBuilder bf = new StringBuilder();
        if(isNot()){
            bf.append("( NOT ");
        }
        bf.append("( ");
        int index = 0;
        for (Iterator<AbstractBaseExpressionImpl> iterator = this.getLista().iterator(); iterator.hasNext();) {
            AbstractBaseExpressionImpl exp = iterator.next();
            if(index>0){
                if(this.isAndConjunction())
                    bf.append(" AND ");
                else
                    bf.append(" OR ");
            }
            if(exp instanceof ISQLExpression){
                if(sqlQueryObject!=null){
                    ISQLQueryObject sqlQ = null;
                    try{
                        sqlQ = sqlQueryObject.newSQLQueryObject();
                    
                        switch (mode) {
                        case STANDARD:
                            ((ISQLExpression)exp).toSql(sqlQ);
                            bf.append(sqlQ.createSQLConditions());
                            break;
                        case PREPARED_STATEMENT:
                            ((ISQLExpression)exp).toSqlPreparedStatement(sqlQ,oggettiPreparedStatement);
                            bf.append(sqlQ.createSQLConditions());
                            break;
                        case JPA:
                            ((ISQLExpression)exp).toSqlJPA(sqlQ,oggettiJPA);
                            bf.append(sqlQ.createSQLConditions());
                            break;
                        }
                    }catch(Exception e){
                        throw new ExpressionException("Expression["+index+"] (type:"+exp.getClass().getName()+")  sqlQueryObject error: "+e.getMessage(),e);
                    }
                }
                else{
                    switch (mode) {
                    case STANDARD:
                        bf.append(((ISQLExpression)exp).toSql());
                        break;
                    case PREPARED_STATEMENT:
                        bf.append(((ISQLExpression)exp).toSqlPreparedStatement(oggettiPreparedStatement));
                        break;
                    case JPA:
                        bf.append(((ISQLExpression)exp).toSqlJPA(oggettiJPA));
                        break;
                    }
                }
            }else{
                throw new ExpressionException("Expression["+index+"] (type:"+exp.getClass().getName()+") is not as cast with "+ISQLExpression.class.getName());
            }
            index++;
        }
        bf.append(" )");
        if(isNot()){
            bf.append(" )");
        }
        return bf.toString();
    }
    
    private void toSqlEngine(ISQLQueryObject sqlQueryObject,SQLMode mode,List<Object> oggettiPreparedStatement,Map<String, Object> oggettiJPA)throws ExpressionException{
        try{
            String s = toSqlEngine(mode, sqlQueryObject, oggettiPreparedStatement, oggettiJPA);
            s = s.substring(1,s.length()-2);
            sqlQueryObject.addWhereCondition(s);
        }catch(Exception e){
            throw new ExpressionException(e);
        }   
    }
    
    @Override
    public String toSql() throws ExpressionException {
        return toSqlEngine(SQLMode.STANDARD, null, null, null);
    }

    @Override
    public String toSqlPreparedStatement(List<Object> oggetti)
            throws ExpressionException {
        return toSqlEngine(SQLMode.PREPARED_STATEMENT, null, oggetti, null);
    }

    @Override
    public String toSqlJPA(Map<String, Object> oggetti)
            throws ExpressionException {
        return toSqlEngine(SQLMode.JPA, null, null, oggetti);
    }
    
    @Override
    public void toSql(ISQLQueryObject sqlQueryObject) throws ExpressionException {
        toSqlEngine(sqlQueryObject,SQLMode.STANDARD, null, null);
    }

    @Override
    public void toSqlPreparedStatement(ISQLQueryObject sqlQueryObject,List<Object> oggetti)
            throws ExpressionException {
        toSqlEngine(sqlQueryObject,SQLMode.PREPARED_STATEMENT, oggetti, null);
    }

    @Override
    public void toSqlJPA(ISQLQueryObject sqlQueryObject,Map<String, Object> oggetti)
            throws ExpressionException {
        toSqlEngine(sqlQueryObject,SQLMode.JPA, null, oggetti);
    }
}