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JDBC Type 4 driver for MySQL
/*
* Copyright (c) 2002, 2019, 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.log;
import java.util.Date;
import com.mysql.cj.util.LogUtils;
import com.mysql.cj.util.StringUtils;
public class ProfilerEventImpl implements ProfilerEvent {
private byte eventType;
private String hostName;
private String database;
private long connectionId;
private int statementId;
private int resultSetId;
private long eventCreationTime;
private long eventDuration;
private String durationUnits;
private String eventCreationPointDesc;
private String message;
/**
* Creates a new profiler event
*
* @param eventType
* the event type (from the constants TYPE_????)
* @param hostName
* the hostname where the event occurs
* @param db
* the database in use
* @param connectionId
* the connection id (-1 if N/A)
* @param statementId
* the statement id (-1 if N/A)
* @param resultSetId
* the result set id (-1 if N/A)
* @param eventDuration
* how long did the event last?
* @param durationUnits
* time units user for eventDuration
* @param eventCreationPoint
* event creation point as a Throwable
* @param message
* optional message
*/
public ProfilerEventImpl(byte eventType, String hostName, String db, long connectionId, int statementId, int resultSetId, long eventDuration,
String durationUnits, Throwable eventCreationPoint, String message) {
this(eventType, hostName, db, connectionId, statementId, resultSetId, System.currentTimeMillis(), eventDuration, durationUnits,
LogUtils.findCallingClassAndMethod(eventCreationPoint), message);
}
private ProfilerEventImpl(byte eventType, String hostName, String db, long connectionId, int statementId, int resultSetId, long eventCreationTime,
long eventDuration, String durationUnits, String eventCreationPointDesc, String message) {
// null-strings are stored as empty strings to get consistent results with pack/unpack
this.eventType = eventType;
this.hostName = hostName == null ? "" : hostName;
this.database = db == null ? "" : db;
this.connectionId = connectionId;
this.statementId = statementId;
this.resultSetId = resultSetId;
this.eventCreationTime = eventCreationTime;
this.eventDuration = eventDuration;
this.durationUnits = durationUnits == null ? "" : durationUnits;
this.eventCreationPointDesc = eventCreationPointDesc == null ? "" : eventCreationPointDesc;
this.message = message == null ? "" : message;
}
@Override
public byte getEventType() {
return this.eventType;
}
@Override
public String getHostName() {
return this.hostName;
}
@Override
public String getDatabase() {
return this.database;
}
@Override
public long getConnectionId() {
return this.connectionId;
}
@Override
public int getStatementId() {
return this.statementId;
}
@Override
public int getResultSetId() {
return this.resultSetId;
}
@Override
public long getEventCreationTime() {
return this.eventCreationTime;
}
@Override
public long getEventDuration() {
return this.eventDuration;
}
@Override
public String getDurationUnits() {
return this.durationUnits;
}
@Override
public String getEventCreationPointAsString() {
return this.eventCreationPointDesc;
}
@Override
public String getMessage() {
return this.message;
}
/**
* Returns a representation of this event as a String.
*
* @return a String representation of this event.
*/
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("[");
switch (this.getEventType()) {
case TYPE_EXECUTE:
buf.append("EXECUTE");
break;
case TYPE_FETCH:
buf.append("FETCH");
break;
case TYPE_OBJECT_CREATION:
buf.append("CONSTRUCT");
break;
case TYPE_PREPARE:
buf.append("PREPARE");
break;
case TYPE_QUERY:
buf.append("QUERY");
break;
case TYPE_USAGE:
buf.append("USAGE ADVISOR");
break;
case TYPE_SLOW_QUERY:
buf.append("SLOW QUERY");
break;
default:
buf.append("UNKNOWN");
}
buf.append("] ");
buf.append(this.message);
buf.append(" [Created on: ");
buf.append(new Date(this.eventCreationTime));
buf.append(", duration: ");
buf.append(this.eventDuration);
buf.append(", connection-id: ");
buf.append(this.connectionId);
buf.append(", statement-id: ");
buf.append(this.statementId);
buf.append(", resultset-id: ");
buf.append(this.resultSetId);
buf.append(",");
buf.append(this.eventCreationPointDesc);
buf.append("]");
return buf.toString();
}
/**
* Unpacks a binary representation of this event.
*
* @param buf
* the binary representation of this event
* @return the unpacked Event
*/
public static ProfilerEvent unpack(byte[] buf) {
int pos = 0;
byte eventType = buf[pos++];
byte[] host = readBytes(buf, pos);
pos += 4 + host.length;
byte[] db = readBytes(buf, pos);
pos += 4 + db.length;
long connectionId = readLong(buf, pos);
pos += 8;
int statementId = readInt(buf, pos);
pos += 4;
int resultSetId = readInt(buf, pos);
pos += 4;
long eventCreationTime = readLong(buf, pos);
pos += 8;
long eventDuration = readLong(buf, pos);
pos += 8;
byte[] eventDurationUnits = readBytes(buf, pos);
pos += 4 + eventDurationUnits.length;
byte[] eventCreationAsBytes = readBytes(buf, pos);
pos += 4 + eventCreationAsBytes.length;
byte[] message = readBytes(buf, pos);
pos += 4 + message.length;
// TODO charset?
return new ProfilerEventImpl(eventType, StringUtils.toString(host, "ISO8859_1"), StringUtils.toString(db, "ISO8859_1"), connectionId, statementId,
resultSetId, eventCreationTime, eventDuration, StringUtils.toString(eventDurationUnits, "ISO8859_1"),
StringUtils.toString(eventCreationAsBytes, "ISO8859_1"), StringUtils.toString(message, "ISO8859_1"));
}
public byte[] pack() {
// TODO charset (Bug#41172 ?)
byte[] hostNameAsBytes = StringUtils.getBytes(this.hostName, "ISO8859_1");
byte[] dbAsBytes = StringUtils.getBytes(this.database, "ISO8859_1");
byte[] durationUnitsAsBytes = StringUtils.getBytes(this.durationUnits, "ISO8859_1");
byte[] eventCreationAsBytes = StringUtils.getBytes(this.eventCreationPointDesc, "ISO8859_1");
byte[] messageAsBytes = StringUtils.getBytes(this.message, "ISO8859_1");
int len = /* eventType */ 1 + /* hostName */ (4 + hostNameAsBytes.length) + + /* db */ (4 + dbAsBytes.length) + /* connectionId */ 8
+ /* statementId */ 4 + /* resultSetId */ 4 + /* eventCreationTime */ 8 + /* eventDuration */ 8
+ /* durationUnits */ (4 + durationUnitsAsBytes.length) + /* eventCreationPointDesc */ (4 + eventCreationAsBytes.length)
+ /* message */ (4 + messageAsBytes.length);
byte[] buf = new byte[len];
int pos = 0;
buf[pos++] = this.eventType;
pos = writeBytes(hostNameAsBytes, buf, pos);
pos = writeBytes(dbAsBytes, buf, pos);
pos = writeLong(this.connectionId, buf, pos);
pos = writeInt(this.statementId, buf, pos);
pos = writeInt(this.resultSetId, buf, pos);
pos = writeLong(this.eventCreationTime, buf, pos);
pos = writeLong(this.eventDuration, buf, pos);
pos = writeBytes(durationUnitsAsBytes, buf, pos);
pos = writeBytes(eventCreationAsBytes, buf, pos);
pos = writeBytes(messageAsBytes, buf, pos);
return buf;
}
private static int writeInt(int i, byte[] buf, int pos) {
buf[pos++] = (byte) (i & 0xff);
buf[pos++] = (byte) (i >>> 8);
buf[pos++] = (byte) (i >>> 16);
buf[pos++] = (byte) (i >>> 24);
return pos;
}
private static int writeLong(long l, byte[] buf, int pos) {
buf[pos++] = (byte) (l & 0xff);
buf[pos++] = (byte) (l >>> 8);
buf[pos++] = (byte) (l >>> 16);
buf[pos++] = (byte) (l >>> 24);
buf[pos++] = (byte) (l >>> 32);
buf[pos++] = (byte) (l >>> 40);
buf[pos++] = (byte) (l >>> 48);
buf[pos++] = (byte) (l >>> 56);
return pos;
}
private static int writeBytes(byte[] msg, byte[] buf, int pos) {
pos = writeInt(msg.length, buf, pos);
System.arraycopy(msg, 0, buf, pos, msg.length);
return pos + msg.length;
}
private static int readInt(byte[] buf, int pos) {
return (buf[pos++] & 0xff) | ((buf[pos++] & 0xff) << 8) | ((buf[pos++] & 0xff) << 16) | ((buf[pos++] & 0xff) << 24);
}
private static long readLong(byte[] buf, int pos) {
return (buf[pos++] & 0xff) | ((long) (buf[pos++] & 0xff) << 8) | ((long) (buf[pos++] & 0xff) << 16) | ((long) (buf[pos++] & 0xff) << 24)
| ((long) (buf[pos++] & 0xff) << 32) | ((long) (buf[pos++] & 0xff) << 40) | ((long) (buf[pos++] & 0xff) << 48)
| ((long) (buf[pos++] & 0xff) << 56);
}
private static byte[] readBytes(byte[] buf, int pos) {
int length = readInt(buf, pos);
byte[] msg = new byte[length];
System.arraycopy(buf, pos + 4, msg, 0, length);
return msg;
}
}