Examples of org.apache.maven.werkz.Session

org.apache.maven.werkz.Session
Goal satisfaction state.
A Session isolates satisfaction of Goals into an objectified context. Multiple Sessions can be deployed simultaneously against a Project or arbitrary Goal graph. Likewise, a single Session may be used simultaneous against several Projects or Goal graphs. A caveat with this last idiom revolves around Goal's implementation of equality which utilitizes only the Goal's name.
@see WerkzProject @see Goal @author bob mcwhirter


        // TODO: shouldn't this be a stack too? Then session attribute not needed
        transientMapper = new GoalToJellyScriptHousingMapper();


        // Create the Jelly session
        Session session = new JellySession( baseContext.getXMLOutput() );
        session.setAttribute( BASE_CONTEXT, baseContext );
        session.setAttribute( PLUGIN_MANAGER, this );
        session.setAttribute( GOAL_MAPPER, transientMapper );


        // add the global session to the pluginContext so that it can be used by tags
        baseContext.setVariable( GLOBAL_SESSION_KEY, session );


        // Execution of the Jelly scripts:

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    public Session createSession()
    {
        /* TODO: this is for compatibility - do we want the user to request a new session instead?
         eg force=true on the tag
         not great to tie variables to session if we are creating a new one */
        Session session = (Session) getContext().getVariable( PluginManager.GLOBAL_SESSION_KEY );
        Session newSession = new JellySession( ( (MavenJellyContext) getContext() ).getXMLOutput() );
        for ( Iterator i = session.getAttributes().keySet().iterator(); i.hasNext(); )
        {
            String key = (String) i.next();
            newSession.setAttribute( key, session.getAttribute( key ) );
        }


        return newSession;
    }

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        invokeBody( output );


        try
        {
            // Lazy goal loading
            Session session = createSession();
            MavenJellyContext baseContext = (MavenJellyContext) session.getAttribute( PluginManager.BASE_CONTEXT );
            GoalToJellyScriptHousingMapper mapper = (GoalToJellyScriptHousingMapper) session
                .getAttribute( PluginManager.GOAL_MAPPER );
            PluginManager pluginManager = (PluginManager) session.getAttribute( PluginManager.PLUGIN_MANAGER );


            Set pluginSet;
            try
            {
                pluginSet = pluginManager.prepAttainGoal( getName(), baseContext, mapper );

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    public void doTag( final XMLOutput output )
        throws JellyTagException
    {
        AttainTag attainTag = (AttainTag) findAncestorWithClass( AttainTag.class );


        Session session = null;


        if ( this.session != null )
        {
            session = this.session;
        }

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    {
        try
        {
            buildGraph();
            sortedGoals.clear();
            Session session = new Session();
            ProjectGoal g = getExistingGoal( project );
            g.attain( session );
        }
        catch ( CyclicGoalChainException e )
        {

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    {
        try
        {
            buildGraph();
            sortedGoals.clear();
            Session session = new Session();
            doItAll.attain( session );
            return getProjects( sortedGoals, sourceBuild );
        }
        catch ( CyclicGoalChainException e )
        {

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    {
        try
        {
            buildGraph();
            sortedGoals.clear();
            Session session = new Session();
            ProjectGoal g = getExistingGoal( project );
            g.attain( session );
        }
        catch ( CyclicGoalChainException e )
        {

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    {
        try
        {
            buildGraph();
            sortedGoals.clear();
            Session session = new Session();
            doItAll.attain( session );
            return getProjects( sortedGoals, sourceBuild );
        }
        catch ( CyclicGoalChainException e )
        {

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    public Session createSession()
    {
        /* TODO: this is for compatibility - do we want the user to request a new session instead?
         eg force=true on the tag
         not great to tie variables to session if we are creating a new one */
        Session session = (Session) getContext().getVariable( PluginManager.GLOBAL_SESSION_KEY );
        Session newSession = new JellySession( ( (MavenJellyContext) getContext() ).getXMLOutput() );
        for ( Iterator i = session.getAttributes().keySet().iterator(); i.hasNext(); )
        {
            String key = (String) i.next();
            newSession.setAttribute( key, session.getAttribute( key ) );
        }


        return newSession;
    }

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        invokeBody( output );


        try
        {
            // Lazy goal loading
            Session session = createSession();
            MavenJellyContext baseContext = (MavenJellyContext) session.getAttribute( PluginManager.BASE_CONTEXT );
            GoalToJellyScriptHousingMapper mapper = (GoalToJellyScriptHousingMapper) session
                .getAttribute( PluginManager.GOAL_MAPPER );
            PluginManager pluginManager = (PluginManager) session.getAttribute( PluginManager.PLUGIN_MANAGER );


            Set pluginSet;
            try
            {
                pluginSet = pluginManager.prepAttainGoal( getName(), baseContext, mapper );

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