| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.testing.tests.optimization.queryandsqlcounting; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.eclipse.persistence.logging.DefaultSessionLog; |
| import org.eclipse.persistence.logging.SessionLog; |
| import org.eclipse.persistence.sessions.Session; |
| import org.eclipse.persistence.logging.SessionLogEntry; |
| import org.eclipse.persistence.sessions.SessionEvent; |
| import org.eclipse.persistence.sessions.SessionEventAdapter; |
| import org.eclipse.persistence.sessions.SessionEventListener; |
| |
| /** |
| * This class can be used to replace the session log. It stores the SQL and TopLink queries produced |
| * during a session. This allows you to ensure proper amounts of SQL are run in various scenarios. |
| */ |
| public class QuerySQLTracker extends DefaultSessionLog { |
| private SessionLog originalLog; |
| private SessionEventListener listener; |
| private List sqlStatements = new ArrayList(); |
| private List queries = new ArrayList(); |
| |
| /** |
| * Instantiating a QuerySQLTracker will replace the session's log with the QuerySQLTracker |
| * and store the old log. The old log will be replaced when remove() is called. |
| */ |
| public QuerySQLTracker(Session session) { |
| this.originalLog = session.getSessionLog(); |
| setLevel(SessionLog.FINEST); |
| setSession(session); |
| setWriter(this.originalLog.getWriter()); |
| getSession().setSessionLog(this); |
| this.listener = buildListener(); |
| getSession().getEventManager().addListener(this.listener); |
| } |
| |
| /** |
| * remove() should be called when a test completes to clean up the log and allow |
| * logging to progress as normal. |
| * */ |
| public void remove() { |
| getSession().setSessionLog(originalLog); |
| getSession().getEventManager().removeListener(this.listener); |
| } |
| |
| @Override |
| public synchronized void log(SessionLogEntry entry) { |
| if ((entry.getNameSpace() != null) && entry.getNameSpace().equalsIgnoreCase(SessionLog.SQL)) { |
| getSqlStatements().add(entry.getMessage()); |
| } |
| if (!this.originalLog.shouldLog(entry.getLevel())) { |
| return; |
| } |
| super.log(entry); |
| } |
| |
| private SessionEventListener buildListener() { |
| return new SessionEventAdapter() { |
| private QuerySQLTracker tracker = QuerySQLTracker.this; |
| |
| @Override |
| public void preExecuteQuery(SessionEvent event) { |
| this.tracker.getQueries().add(event.getQuery()); |
| } |
| }; |
| } |
| |
| public SessionEventListener getListener() { |
| return listener; |
| } |
| |
| /** |
| * Get a list of all the SQL strings that have been executed in while this QuerySQLTracker |
| * has been logging. SQL is obtained through by getting logging statements with a SQL namespace. |
| * */ |
| public List getSqlStatements() { |
| return sqlStatements; |
| } |
| |
| /** |
| * Get a list of all the TopLink Queries that have been executed in while this QuerySQLTracker |
| * has been logging. Queries are gathered in the preExecuteQuery event. |
| */ |
| public List getQueries() { |
| return queries; |
| } |
| } |