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JDBC Type 4 driver for MySQL.
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/*
* Copyright (c) 2016, 2024, Oracle and/or its affiliates.
*
* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by
* the Free Software Foundation.
*
* This program is designed to work with certain software that is licensed under separate terms, as designated in a particular file or component or in
* included license documentation. The authors of MySQL hereby grant you an additional permission to link the program and your derivative works with the
* separately licensed software that they have either included with the program or referenced in the documentation.
*
* Without limiting anything contained in the foregoing, this file, which is part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
* version 1.0, a copy of which can be found at http://oss.oracle.com/licenses/universal-foss-exception.
*
* 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 Public License, version 2.0, for more details.
*
* You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.cj.protocol.a;
import java.io.IOException;
import java.util.Optional;
import com.mysql.cj.protocol.MessageReader;
import com.mysql.cj.protocol.PacketReceivedTimeHolder;
/**
* A {@link MessageReader} which tracks the last time a packet was received.
*/
public class TimeTrackingPacketReader implements MessageReader, PacketReceivedTimeHolder {
private MessageReader packetReader;
private long lastPacketReceivedTimeMs = 0;
public TimeTrackingPacketReader(MessageReader messageReader) {
this.packetReader = messageReader;
}
@Override
public NativePacketHeader readHeader() throws IOException {
return this.packetReader.readHeader();
}
@Override
public NativePacketHeader probeHeader() throws IOException {
return this.packetReader.probeHeader();
}
@Override
public NativePacketPayload readMessage(Optional reuse, NativePacketHeader header) throws IOException {
NativePacketPayload buf = this.packetReader.readMessage(reuse, header);
this.lastPacketReceivedTimeMs = System.currentTimeMillis();
return buf;
}
@Override
public NativePacketPayload probeMessage(Optional reuse, NativePacketHeader header) throws IOException {
NativePacketPayload buf = this.packetReader.probeMessage(reuse, header);
this.lastPacketReceivedTimeMs = System.currentTimeMillis();
return buf;
}
@Override
public long getLastPacketReceivedTime() {
return this.lastPacketReceivedTimeMs;
}
@Override
public byte getMessageSequence() {
return this.packetReader.getMessageSequence();
}
@Override
public void resetMessageSequence() {
this.packetReader.resetMessageSequence();
}
@Override
public MessageReader undecorateAll() {
return this.packetReader.undecorateAll();
}
@Override
public MessageReader undecorate() {
return this.packetReader;
}
}
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