/*
* #%L
* server
* %%
* Copyright (C) 2012 - 2015 valdasraps
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/lgpl-3.0.html>.
* #L%
*/
package lt.emasina.resthub.server.parser.update;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lt.emasina.resthub.model.MdParameter;
import net.sf.jsqlparser.expression.Expression;
import net.sf.jsqlparser.expression.JdbcNamedParameter;
import net.sf.jsqlparser.statement.select.Join;
import net.sf.jsqlparser.statement.select.OrderByElement;
import net.sf.jsqlparser.statement.select.PlainSelect;
import net.sf.jsqlparser.statement.select.SelectExpressionItem;
import lt.emasina.resthub.server.table.ServerTable;
import lt.emasina.resthub.parser.AbstractAllParser;
import lt.emasina.resthub.server.query.QueryParameter;
/**
* SelectParser
* @author valdo
*/
@RequiredArgsConstructor
public class UpdateParamParser extends AbstractAllParser {
private final String alias;
private final ServerTable tmd;
@Getter
private final Map<String, QueryParameter> parameters = new HashMap<>();
// SelectVisitor
@Override
public void visit(PlainSelect ps) {
ps.getFromItem().accept(this);
if (ps.getJoins() != null) {
for (Join j : ps.getJoins()) {
j.getRightItem().accept(this);
}
}
if (ps.getJoins() != null) {
for (Join j : ps.getJoins()) {
if (j.getOnExpression() != null) {
j.getOnExpression().accept(this);
}
if (j.getUsingColumns() != null) {
for (Iterator<?> it1 = j.getUsingColumns().iterator(); it1.hasNext();) {
((Expression) it1.next()).accept(this);
}
}
}
}
// Next iterate over SELECT, WHERE and ORDER BY items
for (Object o: ps.getSelectItems()) {
if (o instanceof SelectExpressionItem) {
((SelectExpressionItem) o).accept(this);
}
}
if (ps.getWhere() != null) {
ps.getWhere().accept(this);
}
if (ps.getOrderByElements() != null) {
for (Iterator<?> it = ps.getOrderByElements().iterator(); it.hasNext();) {
((OrderByElement) it.next()).accept(this);
}
}
if (ps.getOracleHierarchical() != null) {
ps.getOracleHierarchical().accept(this);
}
}
@Override
public void visit(JdbcNamedParameter p) {
MdParameter parameter = tmd.getParameter(p.getName());
QueryParameter qp = new QueryParameter(parameter, alias);
p.setName(qp.getSqlName());
parameters.put(qp.getName(), qp);
}
}