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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2016 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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 */

package org.glassfish.web.upgrade;

import java.io.File;
import java.util.logging.Level;
import java.util.logging.Logger;

import com.sun.enterprise.util.io.FileUtils;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.api.admin.config.ConfigurationUpgrade;
import org.glassfish.hk2.api.PostConstruct;
import org.glassfish.web.LogFacade;
import jakarta.inject.Inject;
import org.jvnet.hk2.annotations.Service;


/**
 * This class implements the contract for services want to perform some upgrade
 * on the application server configuration.
 *
 * @author Shing Wai Chan
 */
@Service(name="webConfigurationUpgrade")
public class WebConfigurationUpgrade implements ConfigurationUpgrade, PostConstruct {

    private static final Logger _logger = LogFacade.getLogger();

    @Inject
    private ServerEnvironment serverEnvironment;

    public void postConstruct() {
        removeSerializedSessions(serverEnvironment.getApplicationCompileJspPath());
    }

    private static void removeSerializedSessions(File dir) {
        File[] files = dir.listFiles();
        if (files != null) {
            for (File f : files) {
                if (f.isDirectory()) {
                    removeSerializedSessions(f);
                } else if (f.getName().endsWith("SESSIONS.ser")) {
                    if (!FileUtils.deleteFileMaybe(f)) {
                        _logger.log(Level.WARNING,
                                LogFacade.UNABLE_TO_DELETE,
                                f.toString());
                    }
                }

            }
        }
    }
}