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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2006-2011 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:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * If you wish your version of this file to be governed by only the CDDL or
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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
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package org.glassfish.internal.deployment;

import com.sun.enterprise.module.Module;
import com.sun.enterprise.module.ModuleState;
import com.sun.enterprise.module.ModulesRegistry;

import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Stack;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Tracing facility for all the deployment backend activities.
 *
 * @author Jerome Dochez
 */
public class DeploymentTracing {

    public static enum Mark {
        ARCHIVE_OPENED,
        ARCHIVE_HANDLER_OBTAINED,
        INITIAL_CONTEXT_CREATED,
        APPINFO_PROVIDED,
        DOL_LOADED,
        APPNAME_DETERMINED,
        TARGET_VALIDATED,
        CONTEXT_CREATED,
        DEPLOY,
        CLASS_LOADER_HIERARCHY,
        PARSING_DONE,
        CLASS_LOADER_CREATED,
        CONTAINERS_SETUP_DONE,
        PREPARE,
        PREPARED,
        LOAD,
        LOAD_EVENTS,
        LOADED,
        START,
        START_EVENTS,
        STARTED,
        REGISTRATION

    }

    public static enum ModuleMark {
        PREPARE,
        PREPARE_EVENTS,
        PREPARED,
        LOAD,
        LOADED,
        START,
        STARTED

    }

    public static enum ContainerMark {
        SNIFFER_DONE,
        BEFORE_CONTAINER_SETUP,
        AFTER_CONTAINER_SETUP,
        GOT_CONTAINER,
        GOT_DEPLOYER,
        PREPARE,
        PREPARED,
        LOAD,
        LOADED,
        START,
        STARTED
    }

    private abstract class Event {
        final long inception = System.currentTimeMillis();

        long elapsedInMs() {
            return inception - DeploymentTracing.this.inception; 
        }
        abstract void print(PrintStream ps);
    }

    private final class GlobalEvent extends Event {
        final Mark mark;

        private GlobalEvent(Mark mark) {
            this.mark = mark;
        }

        void print(PrintStream ps) {
            ps.println("Mark " + mark.toString() + " at " + elapsedInMs());
        }
    }

    private class ContainerEvent extends Event{
        final ContainerMark mark;
        final String name;

        private ContainerEvent(ContainerMark mark, String name) {
            this.mark = mark;
            this.name = name;
        }
        void print(PrintStream ps) {
            ps.println("Container : " + name + " Mark " + mark.toString() + " at " + elapsedInMs());
        }
    }

    private class ModuleEvent extends Event {
        final ModuleMark mark;
        final String moduleName;

        private ModuleEvent(ModuleMark mark, String moduleName) {
            this.mark = mark;
            this.moduleName = moduleName;
        }
        void print(PrintStream ps) {
            ps.println("Module " +  moduleName + " Mark " + mark.toString() + " at " + elapsedInMs());
        }
    }

    final long inception = System.currentTimeMillis();
    final List events = new ArrayList();

    public long elapsed() {
        return System.currentTimeMillis() - inception;
    }

    public void addMark(Mark mark) {
        events.add(new GlobalEvent(mark));
    }

    public void addContainerMark(ContainerMark mark, String name) {
        events.add(new ContainerEvent(mark, name));
    }

    public void addModuleMark(ModuleMark mark, String moduleName) {
        events.add(new ModuleEvent(mark, moduleName));
    }

    public void print(PrintStream ps) {
        for (int i=0;i