io.vertx.db2client.impl.codec.CloseCursorCommandCodec Maven / Gradle / Ivy
/*
* Copyright (C) 2020 IBM Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.vertx.db2client.impl.codec;
import io.netty.buffer.ByteBuf;
import io.vertx.core.impl.logging.Logger;
import io.vertx.core.impl.logging.LoggerFactory;
import io.vertx.db2client.impl.codec.DB2PreparedStatement.QueryInstance;
import io.vertx.db2client.impl.drda.DRDAQueryRequest;
import io.vertx.db2client.impl.drda.DRDAQueryResponse;
import io.vertx.sqlclient.impl.command.CloseCursorCommand;
import io.vertx.sqlclient.impl.command.CommandResponse;
class CloseCursorCommandCodec extends CommandCodec {
private static final Logger LOG = LoggerFactory.getLogger(CloseCursorCommandCodec.class);
CloseCursorCommandCodec(CloseCursorCommand cmd) {
super(cmd);
}
@Override
void encode(DB2Encoder encoder) {
super.encode(encoder);
DB2PreparedStatement statement = (DB2PreparedStatement) cmd.statement();
if (LOG.isDebugEnabled())
LOG.debug("Close cursor with id=" + cmd.id());
QueryInstance query = statement.getQueryInstance(cmd.id());
statement.closeQuery(query);
ByteBuf packet = allocateBuffer();
DRDAQueryRequest closeCursor = new DRDAQueryRequest(packet, encoder.socketConnection.connMetadata);
closeCursor.buildCLSQRY(statement.section, encoder.socketConnection.connMetadata.databaseName, query.queryInstanceId);
closeCursor.completeCommand();
sendNonSplitPacket(packet);
}
@Override
void decodePayload(ByteBuf payload, int payloadLength) {
DRDAQueryResponse closeCursor = new DRDAQueryResponse(payload, encoder.socketConnection.connMetadata);
closeCursor.readCursorClose();
completionHandler.handle(CommandResponse.success(null));
}
}