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Source Code for Connector/J 8.0.31 - User Impl
Where to get the Java source code for Connector/J 8.0 User Impl module?
✍: FYIcenter.com
Java source code files for Connector/J 8.0 User Impl module are:
⏎ com/mysql/cj/jdbc/integration/c3p0/MysqlConnectionTester.java
/* * Copyright (c) 2002, 2020, 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 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.jdbc.integration.c3p0; import java.lang.reflect.Method; import java.sql.Connection; import java.sql.SQLException; import java.sql.Statement; import com.mchange.v2.c3p0.C3P0ProxyConnection; import com.mchange.v2.c3p0.QueryConnectionTester; import com.mysql.cj.exceptions.CJCommunicationsException; import com.mysql.cj.jdbc.JdbcConnection; import com.mysql.cj.jdbc.exceptions.CommunicationsException; /** * ConnectionTester for C3P0 connection pool that uses the more efficient COM_PING method of testing connection 'liveness' for MySQL, and 'sorts' exceptions * based on SQLState or class of 'CommunicationsException' for handling exceptions. */ public final class MysqlConnectionTester implements QueryConnectionTester { private static final long serialVersionUID = 3256444690067896368L; private static final Object[] NO_ARGS_ARRAY = new Object[0]; private transient Method pingMethod; public MysqlConnectionTester() { try { this.pingMethod = JdbcConnection.class.getMethod("ping", (Class[]) null); } catch (Exception ex) { // punt, we have no way to recover, other than we now use 'SELECT 1' for handling the connection testing. } } @Override public int activeCheckConnection(Connection con) { try { if (this.pingMethod != null) { if (con instanceof JdbcConnection) { // We've been passed an instance of a MySQL connection -- no need for reflection ((JdbcConnection) con).ping(); } else { // Assume the connection is a C3P0 proxy C3P0ProxyConnection castCon = (C3P0ProxyConnection) con; castCon.rawConnectionOperation(this.pingMethod, C3P0ProxyConnection.RAW_CONNECTION, NO_ARGS_ARRAY); } } else { Statement pingStatement = null; try { pingStatement = con.createStatement(); pingStatement.executeQuery("SELECT 1").close(); } finally { if (pingStatement != null) { pingStatement.close(); } } } return CONNECTION_IS_OKAY; } catch (Exception ex) { return CONNECTION_IS_INVALID; } } @Override public int statusOnException(Connection arg0, Throwable throwable) { if (throwable instanceof CommunicationsException || throwable instanceof CJCommunicationsException) { return CONNECTION_IS_INVALID; } if (throwable instanceof SQLException) { String sqlState = ((SQLException) throwable).getSQLState(); if (sqlState != null && sqlState.startsWith("08")) { return CONNECTION_IS_INVALID; } return CONNECTION_IS_OKAY; } // Runtime/Unchecked? return CONNECTION_IS_INVALID; } @Override public int activeCheckConnection(Connection arg0, String arg1) { return CONNECTION_IS_OKAY; } }
⏎ com/mysql/cj/jdbc/integration/c3p0/MysqlConnectionTester.java
Or download all of them as a single archive file:
File name: mysql-connector-java-user-impl-8.0.31.zip File size: 429580 bytes Release date: 2022-09-03 Download
⇒ Downloading mysql-connector-java-5.1.40.zip
⇐ Source Code for Connector/J 8.0.31 - User API
2023-05-09, 7645👍, 0💬
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