Examples of org.apache.cocoon.components.flow.WebContinuation

Package org.apache.cocoon.components.flow

Examples of org.apache.cocoon.components.flow.WebContinuation

org.apache.cocoon.components.flow.WebContinuation
Representation of continuations in a Web environment.
Because a user may click on the back button of the browser and restart a saved computation in a continuation, each WebContinuation becomes the parent of a subtree of continuations.
If there is no parent WebContinuation, the created continuation becomes the root of a tree of WebContinuations. @author Ovidiu Predescu @since March 19, 2002 @version CVS $Id: WebContinuation.java,v 1.4 2003/03/20 02:46:32 vgritsenko Exp $

    public void handleContinuation(String id, List params, Redirector redirector)
            throws Exception {
        if (!initialized)
            initialize();


        WebContinuation parentwk = continuationsMgr.lookupWebContinuation(id);


        if (parentwk == null) {
            /*
             * Throw an InvalidContinuationException to be handled inside the
             * <map:handle-errors> sitemap element.
             */
            throw new InvalidContinuationException("The continuation ID " + id + " is invalid.");
        }


        Continuation parentContinuation = (Continuation) parentwk.getContinuation();
        ContinuationContext parentContext = (ContinuationContext) parentContinuation.getContext();
        ContinuationContext context = new ContinuationContext();
        context.setObject(parentContext.getObject());
        context.setMethod(parentContext.getMethod());
        context.setAvalonContext(avalonContext);
        context.setLogger(getLogger());
        context.setServiceManager(manager);
        context.setRedirector(redirector);
        Continuation continuation = new Continuation(parentContinuation, context);


        Request request = ContextHelper.getRequest(this.avalonContext);
        Session session = request.getSession(true);
        HashMap userScopes = (HashMap) session.getAttribute(USER_GLOBAL_SCOPE);


        Continuable flow = (Continuable) context.getObject();
        Method method = context.getMethod();


        WebContinuation wk =
                continuationsMgr.createWebContinuation(continuation, parentwk, timeToLive, null);
        FlowHelper.setWebContinuation(ContextHelper.getObjectModel(this.avalonContext), wk);


        continuation.registerThread();
        try {

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                    }
                }
            }
        }
        Object bean = FlowHelper.getContextObject(objectModel);
        WebContinuation kont = FlowHelper.getWebContinuation(objectModel);
        setContexts(bean, kont, parameters, objectModel);
        this.definitions = new HashMap();
    }

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    }


    public void handleContinuation(String id, List params,
                                   Redirector redirector) throws Exception
    {
        WebContinuation wk = continuationsMgr.lookupWebContinuation(id);


        if (wk == null) {
            /*
             * Throw an InvalidContinuationException to be handled inside the
             * <map:handle-errors> sitemap element.
             */
            throw new InvalidContinuationException("The continuation ID " + id + " is invalid.");
        }


        Context context = Context.enter();
        context.setOptimizationLevel(OPTIMIZATION_LEVEL);
        context.setGeneratingDebug(true);
        context.setCompileFunctionsWithDynamicScope(true);


        // Obtain the continuation object from it, and setup the
        // FOM_Cocoon object associated in the dynamic scope of the saved
        // continuation with the environment and context objects.
        Continuation k = (Continuation)wk.getContinuation();
        ThreadScope kScope = (ThreadScope)k.getParentScope();
        synchronized (kScope) {
            ClassLoader savedClassLoader =
                Thread.currentThread().getContextClassLoader();
            FOM_Cocoon cocoon = null;

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                        startElement.attributes.getValue(CONTINUATION);
                    int level = 0;
                    if (BACK.equals(cont)) {
                        level = 3;
                    }
                    WebContinuation wk = kont;
                    for (int i = 0; i < level; i++) {
                        wk = wk.getParentContinuation();
                        if (wk == null) {
                            throw new SAXParseException("No such continuation",
                                                        ev.location,
                                                        null);
                        }
                    }
                    String kontId = wk.getId();
                    AttributesImpl newAttrs = 
                        new AttributesImpl(startElement.attributes);
                    int i = newAttrs.getIndex(ID);
                    String phase = attrs.getValue(PHASE);
                    if (phase == null) {

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                    cache.remove(uri);
                }
            }
        }
        Object bean = FlowHelper.getContextObject(objectModel);
        WebContinuation kont = FlowHelper.getWebContinuation(objectModel);
        setContexts(bean, kont,
                    ObjectModelHelper.getRequest(objectModel),
                    ObjectModelHelper.getResponse(objectModel),
                    ObjectModelHelper.getContext(objectModel),
                    parameters,

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    }


    public void handleContinuation(String id, List params,
                                   Redirector redirector) throws Exception
    {
        WebContinuation wk = continuationsMgr.lookupWebContinuation(id, getInterpreterID());


        if (wk == null) {
            /*
             * Throw an InvalidContinuationException to be handled inside the
             * <map:handle-errors> sitemap element.
             */
            throw new InvalidContinuationException("The continuation ID " + id + " is invalid.");
        }


        Context context = Context.enter();
        context.setOptimizationLevel(OPTIMIZATION_LEVEL);
        context.setGeneratingDebug(true);
        context.setCompileFunctionsWithDynamicScope(true);
        LocationTrackingDebugger locationTracker = new LocationTrackingDebugger();
        if (!enableDebugger) {
            //FIXME: add a "tee" debugger that allows both to be used simultaneously
            context.setDebugger(locationTracker, null);
        }


        // Obtain the continuation object from it, and setup the
        // FOM_Cocoon object associated in the dynamic scope of the saved
        // continuation with the environment and context objects.
        Continuation k = (Continuation) wk.getContinuation();
        ThreadScope kScope = (ThreadScope) k.getParentScope();


        synchronized (kScope) {
            ClassLoader savedClassLoader =
                Thread.currentThread().getContextClassLoader();

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                    cache.put(uri, startEvent);
                }
            }
        }
        Object bean = FlowHelper.getContextObject(objectModel);
        WebContinuation kont = FlowHelper.getWebContinuation(objectModel);
        setContexts(bean, kont, parameters, objectModel);
        this.definitions = new HashMap();
    }

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        if (args.length > 2) {
            timeToLive =
                    (int) org.mozilla.javascript.Context.toNumber(args[2]);
        }


        WebContinuation wk;
        Scriptable scope = getTopLevelScope(c);
        FOM_Cocoon cocoon = (FOM_Cocoon)getProperty(scope, "cocoon");
        ContinuationsManager contMgr = (ContinuationsManager)cocoon.getApplicationContext().getBean(ContinuationsManager.ROLE);
        wk = contMgr.createWebContinuation(c,
                                           (parent == null ? null : parent.getWebContinuation()),

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    public Continuation jsGet_continuation() {
        return (Continuation)wk.getContinuation();
    }


    public FOM_WebContinuation jsFunction_getParent() {
        WebContinuation parent = wk.getParentContinuation();
        if (parent == null) {
            return null;
        }


        FOM_WebContinuation pwk = new FOM_WebContinuation(parent);

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            (NativeArray)org.mozilla.javascript.Context.getCurrentContext().newObject(getParentScope(),
                                                                                      "Array",
                                                                                      new Object[]{new Integer(list.size())});
        Iterator iter = list.iterator();
        for (int i = 0; iter.hasNext(); i++) {
            WebContinuation child = (WebContinuation)iter.next();
            FOM_WebContinuation cwk = new FOM_WebContinuation(child);
            cwk.setParentScope(getParentScope());
            cwk.setPrototype(getClassPrototype(getParentScope(),
                                               cwk.getClassName()));
            arr.put(i, arr, cwk);

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