/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.sql.pg;
import com.foundationdb.ais.model.Parameter;
import com.foundationdb.ais.model.Routine;
import com.foundationdb.sql.server.ServerJavaRoutine;
import com.foundationdb.sql.server.ServerJavaValues;
import java.util.List;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class PostgresJavaRoutineResultsOutputter extends PostgresOutputter<ServerJavaRoutine>
{
public PostgresJavaRoutineResultsOutputter(PostgresQueryContext context,
PostgresJavaRoutine statement) {
super(context, statement);
}
@Override
public void output(ServerJavaRoutine javaRoutine) throws IOException {
messenger.beginMessage(PostgresMessages.DATA_ROW_TYPE.code());
messenger.writeShort(ncols);
int fieldIndex = 0;
Routine routine = javaRoutine.getInvocation().getRoutine();
List<Parameter> params = routine.getParameters();
for (int i = 0; i < params.size(); i++) {
Parameter param = params.get(i);
if (param.getDirection() == Parameter.Direction.IN) continue;
output(javaRoutine, param, i, fieldIndex++);
}
if (routine.getReturnValue() != null) {
output(javaRoutine, routine.getReturnValue(), ServerJavaValues.RETURN_VALUE_INDEX, fieldIndex++);
}
messenger.sendMessage();
}
protected void output(ServerJavaRoutine javaRoutine, Parameter param, int i, int fieldIndex) throws IOException {
Object field = javaRoutine.getOutParameter(param, i);
PostgresType type = columnTypes.get(fieldIndex);
boolean binary = context.isColumnBinary(fieldIndex);
ByteArrayOutputStream bytes = encoder.encodePObject(field, type, binary);
if (bytes == null) {
messenger.writeInt(-1);
}
else {
messenger.writeInt(bytes.size());
messenger.writeByteStream(bytes);
}
}
}