Examples of org.apache.cocoon.webapps.session.context.SessionContext

Package org.apache.cocoon.webapps.session.context

Examples of org.apache.cocoon.webapps.session.context.SessionContext

org.apache.cocoon.webapps.session.context.SessionContext
Interface for a SessionContext. This interface describes a SessionContext. The SessionContext is a data container containing structured XML which can be retrieved/set by the session transformer. This interface does not specify how the session context stores the data. This is left to the implementation itself, but actually this interface is build in the DOM model. As this context is used in a web context, all methods must be synchronized. @author Carsten Ziegeler @version CVS $Id: SessionContext.java,v 1.4 2004/03/19 14:16:55 cziegeler Exp $

            } else if ( result != null ) {
                // now set the failure information in the temporary context
                ContextManager contextManager = null;
                try {
                    contextManager = (ContextManager) this.manager.lookup( ContextManager.ROLE );
                    SessionContext temp = contextManager.getContext( SessionConstants.TEMPORARY_CONTEXT );
                    
                    final DocumentFragment fragment = result.result.createDocumentFragment();
                    final Node root = result.result.getDocumentElement();
                    root.normalize();
                    Node child;
                    boolean appendedNode = false;
                    while (root.hasChildNodes() ) {
                        child = root.getFirstChild();
                        root.removeChild(child);
                        // Leave out empty text nodes before any other node
                        if (appendedNode
                            || child.getNodeType() != Node.TEXT_NODE
                            || child.getNodeValue().trim().length() > 0) {
                            fragment.appendChild(child);
                            appendedNode = true;
                        }
                    }
                    temp.appendXML("/", fragment);
                } catch ( ServiceException se ) {
                    throw new ProcessingException("Unable to lookup session manager.", se);
                } finally {
                    this.manager.release( contextManager );
                }

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                                                   String saveURI)
    throws ProcessingException {
        RequestState state = this.getState();
        UserHandler handler = state.getHandler();
        
        SessionContext context = null;


        if ( handler != null ) {
            ContextManager contextManager = null;
            try {
                contextManager = (ContextManager)this.manager.lookup(ContextManager.ROLE);

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        if ( pos != -1 ) {
            final String contextName = name.substring(0, pos);
            final String path = name.substring(pos);
            
            try {
                SessionContext context = this.contextManager.getContext(contextName);
                if ( context != null ) {
                    DocumentFragment frag = context.getXML(path);
                    return DOMUtil.getValueOfNode(frag);
                }
            } catch (ProcessingException pe) {
                throw new ConfigurationException("Unable to get information from context.", pe);
            }

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     * Get a reserved context
     */
    private SessionContext getReservedContext(String name)
    throws ProcessingException {
        // synchronized 
        SessionContext context = null;
        SessionContextProvider provider = null;
        try {
            provider = (SessionContextProvider)this.contextSelector.select( name );
            synchronized (provider) {
                context = provider.getSessionContext(name);

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        Session session = this.getSession(true);
        if (session == null) {
            throw new ProcessingException("CreateContext: Session is required");
        }


        SessionContext context;
        synchronized(session) {
            // test for reserved context
            if (this.isReservedContextName(name)) {
                throw new ProcessingException("SessionContext with name " + name + " is reserved and cannot be created manually.");
            }


            if (this.existsContext(name)) {
                context = this.getContext(name);
            } else {
                Map contexts = this.getSessionContexts(session);
                context = new SimpleSessionContext(this.xpathProcessor, this.resolver);
                context.setup(name, loadURI, saveURI);
                contexts.put(name, context);
            }
        }
        
        if (this.getLogger().isDebugEnabled()) {

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        }
        if (path == null) {
            throw new ProcessingException("SessionManager.getContextFragment: Path is required");
        }


        SessionContext context = this.contextManager.getContext( contextName );


        if (context == null) {
            throw new ProcessingException("SessionManager.getContextFragment: Context '" + contextName + "' not found.");
        }


        DocumentFragment frag;
        frag = context.getXML(path);


        if (this.getLogger().isDebugEnabled() ) {
            this.getLogger().debug("END getContextFragment documentFragment=" + (frag == null ? "null" : XMLUtils.serializeNode(frag, XMLUtils.createPropertiesForXML(false))));
        }
        return frag;

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        }
        if (path == null) {
            throw new ProcessingException("SessionManager.streamContextFragment: Path is required");
        }


        SessionContext context = this.contextManager.getContext( contextName );


        if (context == null) {
            throw new ProcessingException("SessionManager.streamContextFragment: Context '" + contextName + "' not found.");
        }


        streamed = context.streamXML(path, consumer, consumer);


        if (this.getLogger().isDebugEnabled() ) {
            this.getLogger().debug("END streamContextFragment streamed=" + streamed);
        }
        return streamed;

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        if (fragment == null) {
            throw new ProcessingException("SessionManager.setContextFragment: Fragment is required");
        }


        // get context
        SessionContext context = this.contextManager.getContext( contextName );


        // check context
        if (context == null) {
            throw new ProcessingException("SessionManager.setContextFragment: Context '" + contextName + "' not found.");
        }


        context.setXML(path, fragment);


        if (this.getLogger().isDebugEnabled() ) {
            this.getLogger().debug("END setContextFragment");
        }
    }

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        if (fragment == null) {
            throw new ProcessingException("SessionManager.appendContextFragment: Fragment is required");
        }


        // get context
        SessionContext context = this.contextManager.getContext( contextName );


        // check context
        if (context == null) {
            throw new ProcessingException("SessionManager.appendContextFragment: Context '" + contextName + "' not found.");
        }


        context.appendXML(path, fragment);


        if (this.getLogger().isDebugEnabled() ) {
            this.getLogger().debug("END appendContextFragment");
        }
    }

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        if (fragment == null) {
            throw new ProcessingException("SessionManager.mergeContextFragment: Fragment is required");
        }


        // get context
        SessionContext context = this.contextManager.getContext( contextName );


        // check context
        if (context == null) {
            throw new ProcessingException("SessionManager.mergeContextFragment: Context '" + contextName + "' not found.");
        }


        Node contextNode = context.getSingleNode(path);
        if (contextNode == null) {
            // no merge required
            context.setXML(path, fragment);
        } else {
            this.importNode(contextNode, fragment, false);
            context.setNode(path, contextNode);
        }


        if (this.getLogger().isDebugEnabled()) {
            this.getLogger().debug("END mergeContextFragment");
        }

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