universe@6: /*
universe@6: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@6: *
universe@6: * Copyright 2017 Mike Becker. All rights reserved.
universe@6: *
universe@6: * Redistribution and use in source and binary forms, with or without
universe@6: * modification, are permitted provided that the following conditions are met:
universe@6: *
universe@6: * 1. Redistributions of source code must retain the above copyright
universe@6: * notice, this list of conditions and the following disclaimer.
universe@6: *
universe@6: * 2. Redistributions in binary form must reproduce the above copyright
universe@6: * notice, this list of conditions and the following disclaimer in the
universe@6: * documentation and/or other materials provided with the distribution.
universe@6: *
universe@6: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@6: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@6: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@6: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@6: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@6: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@6: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@6: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@6: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@6: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@6: * POSSIBILITY OF SUCH DAMAGE.
universe@6: *
universe@6: */
universe@6: package de.uapcore.lightpit;
universe@6:
universe@21: import de.uapcore.lightpit.entities.CoreDAOFactory;
universe@21: import de.uapcore.lightpit.entities.ModuleDao;
universe@20: import java.sql.Connection;
universe@20: import java.sql.SQLException;
universe@10: import java.util.Collections;
universe@20: import java.util.HashMap;
universe@10: import java.util.List;
universe@20: import java.util.Map;
universe@20: import java.util.Map.Entry;
universe@10: import java.util.Optional;
universe@20: import java.util.concurrent.CopyOnWriteArrayList;
universe@20: import java.util.concurrent.atomic.AtomicBoolean;
universe@21: import java.util.stream.Collectors;
universe@7: import javax.servlet.Registration;
universe@6: import javax.servlet.ServletContext;
universe@6: import javax.servlet.ServletContextEvent;
universe@6: import javax.servlet.ServletContextListener;
universe@6: import javax.servlet.annotation.WebListener;
universe@8: import org.slf4j.Logger;
universe@8: import org.slf4j.LoggerFactory;
universe@6:
universe@6: /**
universe@6: * Scans registered servlets for LightPIT modules.
universe@6: */
universe@6: @WebListener
universe@10: public final class ModuleManager implements ServletContextListener {
universe@6:
universe@8: private static final Logger LOG = LoggerFactory.getLogger(ModuleManager.class);
universe@6:
universe@6: /**
universe@6: * The attribute name in the servlet context under which an instance of this class can be found.
universe@6: */
universe@6: public static final String SC_ATTR_NAME = ModuleManager.class.getName();
universe@10: private ServletContext sc;
universe@6:
universe@20: /**
universe@20: * This flag is true, when synchronization is needed.
universe@20: */
universe@21: private final AtomicBoolean dirty = new AtomicBoolean(true);
universe@20:
universe@20: private final CopyOnWriteArrayList