com.mysql.cj.mysqla.io.TimeTrackingPacketReader Maven / Gradle / Ivy
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JDBC Type 4 driver for MySQL
/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
*
* 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 also distributed with certain software (including but not
* limited to OpenSSL) 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 included with MySQL.
*
* 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.mysqla.io;
import java.io.IOException;
import java.util.Optional;
import com.mysql.cj.api.io.PacketReceivedTimeHolder;
import com.mysql.cj.api.mysqla.io.PacketHeader;
import com.mysql.cj.api.mysqla.io.PacketPayload;
import com.mysql.cj.api.mysqla.io.PacketReader;
/**
* A {@link PacketReader} which tracks the last time a packet was received.
*/
public class TimeTrackingPacketReader implements PacketReader, PacketReceivedTimeHolder {
private PacketReader packetReader;
private long lastPacketReceivedTimeMs = 0;
public TimeTrackingPacketReader(PacketReader packetReader) {
this.packetReader = packetReader;
}
@Override
public PacketHeader readHeader() throws IOException {
return this.packetReader.readHeader();
}
@Override
public PacketPayload readPayload(Optional reuse, int packetLength) throws IOException {
PacketPayload buf = this.packetReader.readPayload(reuse, packetLength);
this.lastPacketReceivedTimeMs = System.currentTimeMillis();
return buf;
}
@Override
public long getLastPacketReceivedTime() {
return this.lastPacketReceivedTimeMs;
}
@Override
public byte getPacketSequence() {
return this.packetReader.getPacketSequence();
}
@Override
public void resetPacketSequence() {
this.packetReader.resetPacketSequence();
}
@Override
public PacketReader undecorateAll() {
return this.packetReader.undecorateAll();
}
@Override
public PacketReader undecorate() {
return this.packetReader;
}
}