Glassfish example source code file (V2ToV3ConfigUpgrade.java)

This example Glassfish source code file (V2ToV3ConfigUpgrade.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

add_list, arraylist, arraylist, base_removal_list, bean, dantlr_use_direct_class_loading=true, javabean, javaconfigchanger, list, list, log, logging, removal_list, removal_list, string, string, util, v2, xx:logfile

The Glassfish V2ToV3ConfigUpgrade.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009-2011 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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 */

package com.sun.enterprise.admin.servermgmt;

import java.beans.PropertyVetoException;
import java.util.*;
import java.util.logging.*;

import com.sun.enterprise.config.serverbeans.Config;
import com.sun.enterprise.config.serverbeans.Configs;
import com.sun.enterprise.config.serverbeans.JavaConfig;
import org.glassfish.api.admin.config.ConfigurationUpgrade;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.annotations.Scoped;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.component.PerLookup;
import org.jvnet.hk2.component.PostConstruct;
import org.jvnet.hk2.config.ConfigSupport;
import org.jvnet.hk2.config.SingleConfigCode;
import org.jvnet.hk2.config.TransactionFailure;

/**
 * Change the jvm-options from v2 to v3
 * @author Byron Nevins
 */

@Service
@Scoped(PerLookup.class)
public class V2ToV3ConfigUpgrade implements ConfigurationUpgrade, PostConstruct {

    @Inject
    Configs configs;

    public void postConstruct() {
        // the 'prevent' defense
        if (configs == null ||
            configs.getConfig() == null ||
            configs.getConfig().isEmpty()) {
            return;
        }

        try {
            for (Config c : configs.getConfig()) {
                JavaConfig jc = c.getJavaConfig();
                if (jc == null) {
                    continue;
                }

                // fix issues where each new config gets 2x, 3x, 4x the data
                newJvmOptions.clear();
                oldJvmOptions = Collections.unmodifiableList(jc.getJvmOptions());
                doAdditions("server-config".equals(c.getName()));
                doRemovals();
                ConfigSupport.apply(new JavaConfigChanger(), jc);
            }
        }
        catch (Exception e) {
            Logger.getAnonymousLogger().log(Level.SEVERE,
                "Failure while upgrading jvm-options from V2 to V3", e);
            throw new RuntimeException(e);
        }
    }

    private void doRemovals() {
        // copy options from old to new.  Don't add items on the removal list
        // note that the remove list also has all the items we just added with
        // doAdditions() so that we don't get duplicate messes.
        for(String s : oldJvmOptions) {
            if(!shouldRemove(s))
                newJvmOptions.add(s);
        }
    }

    private void doAdditions(boolean isDas) {
        // add new options
        doAdditionsFrom(ADD_LIST);
        if (isDas) {
            doAdditionsFrom(ADD_LIST_DAS);
        } else {
            doAdditionsFrom(ADD_LIST_NOT_DAS);
        }
    }

    private void doAdditionsFrom(String [] strings) {
        for (String s : strings) {
            newJvmOptions.add(s);
        }
    }

    private boolean shouldRemove(String option) {
        if(!ok(option))
            return true;

        for(String s : REMOVAL_LIST)
            if(option.startsWith(s))
                return true;

        return false;
    }

    private boolean ok(String s) {
        return s != null && s.length() > 0;
    }

    private         List<String> oldJvmOptions;
    private final   List<String> newJvmOptions = new ArrayList();

    private static final String[] BASE_REMOVAL_LIST = new String[] {
            "-Djavax.management.builder.initial",
            "-Dsun.rmi.dgc.server.gcInterval",
            "-Dsun.rmi.dgc.client.gcInterval",
            "-Dcom.sun.enterprise.taglibs",
            "-Dcom.sun.enterprise.taglisteners",
            "-XX:LogFile",
        };

    // these are added to all configs
    private static final String[] ADD_LIST = new String[] {
        "-XX:+UnlockDiagnosticVMOptions",
        "-XX:+LogVMOutput",
        "-XX:LogFile=${com.sun.aas.instanceRoot}/logs/jvm.log",
        "-DANTLR_USE_DIRECT_CLASS_LOADING=true",
        "-Dosgi.shell.telnet.maxconn=1",
        "-Dosgi.shell.telnet.ip=127.0.0.1",
        "-Dgosh.args=--noshutdown -c noop=true",
        "-Dfelix.fileinstall.dir=${com.sun.aas.installRoot}/modules/autostart/",
        "-Dfelix.fileinstall.poll=5000",
        "-Dfelix.fileinstall.debug=3",
        "-Dfelix.fileinstall.bundles.new.start=true",
        "-Dfelix.fileinstall.bundles.startTransient=true",
        "-Dfelix.fileinstall.disableConfigSave=false",
        "-Dfelix.fileinstall.log.level=2",
        "-Djavax.management.builder.initial=com.sun.enterprise.v3.admin.AppServerMBeanServerBuilder",
        "-Dorg.glassfish.web.rfc2109_cookie_names_enforced=false",
        "-Djava.ext.dirs=${com.sun.aas.javaRoot}/lib/ext${path.separator}${com.sun.aas.javaRoot}/jre/lib/ext${path.separator}${com.sun.aas.instanceRoot}/lib/ext",
    };

    // these are added to DAS only
    private static final String[] ADD_LIST_DAS = new String[] {
        "-Dosgi.shell.telnet.port=6666"
    };

    // these are added to instances
    private static final String[] ADD_LIST_NOT_DAS = new String[] {
        "-Dosgi.shell.telnet.port=${OSGI_SHELL_TELNET_PORT}"
    };

    private static final List<String> REMOVAL_LIST = new ArrayList();

    static {
        Collections.addAll(REMOVAL_LIST, BASE_REMOVAL_LIST);
        Collections.addAll(REMOVAL_LIST, ADD_LIST);
    }

    private class JavaConfigChanger implements SingleConfigCode<JavaConfig> {
        public Object run(JavaConfig jc) throws PropertyVetoException, TransactionFailure {
           jc.setJvmOptions(newJvmOptions);
           return jc;
        }
    }
}