/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.translator.simpledb;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import org.teiid.language.Array;
import org.teiid.language.Literal;
import org.teiid.language.SetClause;
import org.teiid.language.Update;
import org.teiid.language.visitor.HierarchyVisitor;
import org.teiid.metadata.Column;
import org.teiid.metadata.Table;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.simpledb.api.SimpleDBDataTypeManager;
public class SimpleDBUpdateVisitor extends HierarchyVisitor{
private Table table;
private Map<String, Object> attributes = new HashMap<String, Object>();
private String criteria;
private ArrayList<TranslatorException> exceptions = new ArrayList<TranslatorException>();
public SimpleDBUpdateVisitor(Update update) {
visitNode(update);
}
public void checkExceptions() throws TranslatorException {
if (!this.exceptions.isEmpty()) {
throw this.exceptions.get(0);
}
}
@Override
public void visit(Update obj) {
if (obj.getParameterValues() != null) {
this.exceptions.add(new TranslatorException(SimpleDBPlugin.Event.TEIID24006, SimpleDBPlugin.Util.gs(SimpleDBPlugin.Event.TEIID24006)));
}
this.table = obj.getTable().getMetadataObject();
for(SetClause setClause : obj.getChanges()){
visitNode(setClause);
}
if (obj.getWhere() != null) {
this.criteria = SimpleDBSQLVisitor.getSQLString(obj.getWhere());
}
}
@Override
public void visit(SetClause obj) {
Column column = obj.getSymbol().getMetadataObject();
if (obj.getValue() instanceof Literal){
try {
Literal l = (Literal) obj.getValue();
this.attributes.put(SimpleDBMetadataProcessor.getName(column), SimpleDBDataTypeManager.convertToSimpleDBType(l.getValue(), column.getJavaType()));
} catch (TranslatorException e) {
this.exceptions.add(e);
}
}
else if (obj.getValue() instanceof Array) {
try {
Array array = (Array)obj.getValue();
String[] result = SimpleDBInsertVisitor.getValuesArray(array);
this.attributes.put(SimpleDBMetadataProcessor.getName(column), result);
} catch (TranslatorException e) {
this.exceptions.add(e);
}
}
else {
this.exceptions.add(new TranslatorException(SimpleDBPlugin.Event.TEIID24001, SimpleDBPlugin.Util.gs(SimpleDBPlugin.Event.TEIID24001)));
}
}
public Table getTable() {
return table;
}
public Map<String, Object> getAttributes() {
return attributes;
}
public String getCriteria() {
return this.criteria;
}
}