Package com.vaadin.client.metadata

Examples of com.vaadin.client.metadata.Type


     *
     * @return A new state object
     */
    protected SharedState createState() {
        try {
            Type stateType = getStateType(this);
            Object stateInstance = stateType.createInstance();
            return (SharedState) stateInstance;
        } catch (NoDataException e) {
            throw new IllegalStateException(
                    "There is no information about the state for "
                            + Util.getSimpleName(this)
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        reference.setConnection(connection);
        JSONObject json = (JSONObject) jsonValue;
        if (json.containsKey(URL_FIELD)) {
            JSONValue jsonURL = json.get(URL_FIELD);
            String URL = (String) JsonDecoder.decodeValue(
                    new Type(String.class.getName(), null), jsonURL, null,
                    connection);
            reference.setURL(URL);
        }
        return reference;
    }
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                            .getName());
                    if (encodedPropertyValue == null) {
                        continue;
                    }

                    Type propertyType = property.getType();

                    Object propertyReference;
                    if (needsReferenceValue(propertyType)) {
                        propertyReference = property.getValue(target);
                    } else {
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            if (array.size() == 0) {
                return new HashMap<Object, Object>();
            }
        }

        Type keyType = type.getParameterTypes()[0];
        Type valueType = type.getParameterTypes()[1];

        if (keyType.getBaseTypeName().equals(String.class.getName())) {
            return decodeStringMap(valueType, jsonMap, connection);
        } else if (keyType.getBaseTypeName().equals(Connector.class.getName())) {
            return decodeConnectorMap(valueType, jsonMap, connection);
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                    int size = properties.size();
                    for (int i = 0; i < size; i++) {
                        Property property = properties.get(i);
                        Object propertyValue = property.getValue(value);
                        Type propertyType = property.getType();
                        JSONValue encodedPropertyValue = encode(propertyValue,
                                propertyType, connection);
                        jsonObject
                                .put(property.getName(), encodedPropertyValue);
                    }
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        } else {
            assert collectionType.getParameterTypes() != null
                    && collectionType.getParameterTypes().length > typeIndex
                    && collectionType.getParameterTypes()[typeIndex] != null : "Proper generics required for encoding child value, assertion failed for "
                    + collectionType;
            Type childType = collectionType.getParameterTypes()[typeIndex];
            return encode(value, childType, connection);
        }
    }
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                    + ". Did you remember to compile the right widgetset?", e);
        }
    }

    private Method getMethod(MethodInvocation invocation) {
        Type type = new Type(invocation.getInterfaceName(), null);
        Method method = type.getMethod(invocation.getMethodName());
        return method;
    }
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                        if (noOpTypes.contains(className)) {
                            continue;
                        }
                        ComponentConnector component = (ComponentConnector) connector;

                        Type stateType = AbstractConnector
                                .getStateType(component);
                        JsArrayString delegateToWidgetProperties = stateType
                                .getDelegateToWidgetProperties();
                        if (delegateToWidgetProperties == null) {
                            noOpTypes.add(className);
                            continue;
                        }

                        int length = delegateToWidgetProperties.length();
                        for (int i = 0; i < length; i++) {
                            String propertyName = delegateToWidgetProperties
                                    .get(i);
                            if (sce.hasPropertyChanged(propertyName)) {
                                Property property = stateType
                                        .getProperty(propertyName);
                                String method = property
                                        .getDelegateToWidgetMethodName();
                                Profiler.enter("doDelegateToWidget");
                                doDelegateToWidget(component, property, method);
                                Profiler.leave("doDelegateToWidget");
                            }
                        }

                    }
                }

                Profiler.leave("@DelegateToWidget");
            }

            private void doDelegateToWidget(ComponentConnector component,
                    Property property, String methodName) {
                Type type = TypeData.getType(component.getClass());
                try {
                    Type widgetType = type.getMethod("getWidget")
                            .getReturnType();
                    Widget widget = component.getWidget();

                    Object propertyValue = property.getValue(component
                            .getState());

                    widgetType.getMethod(methodName).invoke(widget,
                            propertyValue);
                } catch (NoDataException e) {
                    throw new RuntimeException(
                            "Missing data needed to invoke @DelegateToWidget for "
                                    + Util.getSimpleName(component), e);
                }
            }

            /**
             * Sends the state change events created while updating the state
             * information.
             *
             * This must be called after hierarchy change listeners have been
             * called. At least caption updates for the parent are strange if
             * fired from state change listeners and thus calls the parent
             * BEFORE the parent is aware of the child (through a
             * ConnectorHierarchyChangedEvent)
             *
             * @param pendingStateChangeEvents
             *            The events to send
             */
            private void sendStateChangeEvents(
                    JsArrayObject<StateChangeEvent> pendingStateChangeEvents) {
                Profiler.enter("sendStateChangeEvents");
                VConsole.log(" * Sending state change events");

                int size = pendingStateChangeEvents.size();
                for (int i = 0; i < size; i++) {
                    StateChangeEvent sce = pendingStateChangeEvents.get(i);
                    try {
                        sce.getConnector().fireEvent(sce);
                    } catch (final Throwable e) {
                        VConsole.error(e);
                    }
                }

                Profiler.leave("sendStateChangeEvents");
            }

            private void unregisterRemovedConnectors() {
                Profiler.enter("unregisterRemovedConnectors");

                int unregistered = 0;
                JsArrayObject<ServerConnector> currentConnectors = connectorMap
                        .getConnectorsAsJsArray();
                int size = currentConnectors.size();
                for (int i = 0; i < size; i++) {
                    ServerConnector c = currentConnectors.get(i);
                    if (c.getParent() != null) {
                        // only do this check if debug mode is active
                        if (ApplicationConfiguration.isDebugMode()) {
                            Profiler.enter("unregisterRemovedConnectors check parent - this is only performed in debug mode");
                            // this is slow for large layouts, 25-30% of total
                            // time for some operations even on modern browsers
                            if (!c.getParent().getChildren().contains(c)) {
                                VConsole.error("ERROR: Connector is connected to a parent but the parent does not contain the connector");
                            }
                            Profiler.leave("unregisterRemovedConnectors check parent - this is only performed in debug mode");
                        }
                    } else if (c == getUIConnector()) {
                        // UIConnector for this connection, leave as-is
                    } else if (c instanceof WindowConnector
                            && getUIConnector().hasSubWindow(
                                    (WindowConnector) c)) {
                        // Sub window attached to this UIConnector, leave
                        // as-is
                    } else {
                        // The connector has been detached from the
                        // hierarchy, unregister it and any possible
                        // children. The UIConnector should never be
                        // unregistered even though it has no parent.
                        Profiler.enter("unregisterRemovedConnectors unregisterConnector");
                        connectorMap.unregisterConnector(c);
                        Profiler.leave("unregisterRemovedConnectors unregisterConnector");
                        unregistered++;
                    }

                }

                VConsole.log("* Unregistered " + unregistered + " connectors");
                Profiler.leave("unregisterRemovedConnectors");
            }

            private JsArrayString createConnectorsIfNeeded(ValueMap json) {
                VConsole.log(" * Creating connectors (if needed)");

                JsArrayString createdConnectors = JavaScriptObject
                        .createArray().cast();
                if (!json.containsKey("types")) {
                    return createdConnectors;
                }

                Profiler.enter("Creating connectors");

                ValueMap types = json.getValueMap("types");
                JsArrayString keyArray = types.getKeyArray();
                for (int i = 0; i < keyArray.length(); i++) {
                    try {
                        String connectorId = keyArray.get(i);
                        ServerConnector connector = connectorMap
                                .getConnector(connectorId);
                        if (connector != null) {
                            continue;
                        }
                        int connectorType = Integer.parseInt(types
                                .getString(connectorId));

                        Class<? extends ServerConnector> connectorClass = configuration
                                .getConnectorClassByEncodedTag(connectorType);

                        // Connector does not exist so we must create it
                        if (connectorClass != uIConnector.getClass()) {
                            // create, initialize and register the paintable
                            Profiler.enter("ApplicationConnection.getConnector");
                            connector = getConnector(connectorId, connectorType);
                            Profiler.leave("ApplicationConnection.getConnector");

                            createdConnectors.push(connectorId);
                        } else {
                            // First UIConnector update. Before this the
                            // UIConnector has been created but not
                            // initialized as the connector id has not been
                            // known
                            connectorMap.registerConnector(connectorId,
                                    uIConnector);
                            uIConnector.doInit(connectorId,
                                    ApplicationConnection.this);
                            createdConnectors.push(connectorId);
                        }
                    } catch (final Throwable e) {
                        VConsole.error(e);
                    }
                }

                Profiler.leave("Creating connectors");

                return createdConnectors;
            }

            private void updateVaadin6StyleConnectors(ValueMap json) {
                Profiler.enter("updateVaadin6StyleConnectors");

                JsArray<ValueMap> changes = json.getJSValueMapArray("changes");
                int length = changes.length();

                VConsole.log(" * Passing UIDL to Vaadin 6 style connectors");
                // update paintables
                for (int i = 0; i < length; i++) {
                    try {
                        final UIDL change = changes.get(i).cast();
                        final UIDL uidl = change.getChildUIDL(0);
                        String connectorId = uidl.getId();

                        final ComponentConnector legacyConnector = (ComponentConnector) connectorMap
                                .getConnector(connectorId);
                        if (legacyConnector instanceof Paintable) {
                            String key = null;
                            if (Profiler.isEnabled()) {
                                key = "updateFromUIDL for "
                                        + Util.getSimpleName(legacyConnector);
                                Profiler.enter(key);
                            }

                            ((Paintable) legacyConnector).updateFromUIDL(uidl,
                                    ApplicationConnection.this);

                            if (Profiler.isEnabled()) {
                                Profiler.leave(key);
                            }
                        } else if (legacyConnector == null) {
                            VConsole.error("Received update for "
                                    + uidl.getTag()
                                    + ", but there is no such paintable ("
                                    + connectorId + ") rendered.");
                        } else {
                            VConsole.error("Server sent Vaadin 6 style updates for "
                                    + Util.getConnectorString(legacyConnector)
                                    + " but this is not a Vaadin 6 Paintable");
                        }

                    } catch (final Throwable e) {
                        VConsole.error(e);
                    }
                }

                Profiler.leave("updateVaadin6StyleConnectors");
            }

            private void sendHierarchyChangeEvents(
                    JsArrayObject<ConnectorHierarchyChangeEvent> events) {
                int eventCount = events.size();
                if (eventCount == 0) {
                    return;
                }
                Profiler.enter("sendHierarchyChangeEvents");

                VConsole.log(" * Sending hierarchy change events");
                for (int i = 0; i < eventCount; i++) {
                    ConnectorHierarchyChangeEvent event = events.get(i);
                    try {
                        logHierarchyChange(event);
                        event.getConnector().fireEvent(event);
                    } catch (final Throwable e) {
                        VConsole.error(e);
                    }
                }

                Profiler.leave("sendHierarchyChangeEvents");
            }

            private void logHierarchyChange(ConnectorHierarchyChangeEvent event) {
                if (true) {
                    // Always disabled for now. Can be enabled manually
                    return;
                }

                VConsole.log("Hierarchy changed for "
                        + Util.getConnectorString(event.getConnector()));
                String oldChildren = "* Old children: ";
                for (ComponentConnector child : event.getOldChildren()) {
                    oldChildren += Util.getConnectorString(child) + " ";
                }
                VConsole.log(oldChildren);

                String newChildren = "* New children: ";
                HasComponentsConnector parent = (HasComponentsConnector) event
                        .getConnector();
                for (ComponentConnector child : parent.getChildComponents()) {
                    newChildren += Util.getConnectorString(child) + " ";
                }
                VConsole.log(newChildren);
            }

            private JsArrayObject<StateChangeEvent> updateConnectorState(
                    ValueMap json, JsArrayString createdConnectorIds) {
                JsArrayObject<StateChangeEvent> events = JavaScriptObject
                        .createArray().cast();
                VConsole.log(" * Updating connector states");
                if (!json.containsKey("state")) {
                    return events;
                }

                Profiler.enter("updateConnectorState");

                FastStringSet remainingNewConnectors = FastStringSet.create();
                remainingNewConnectors.addAll(createdConnectorIds);

                // set states for all paintables mentioned in "state"
                ValueMap states = json.getValueMap("state");
                JsArrayString keyArray = states.getKeyArray();
                for (int i = 0; i < keyArray.length(); i++) {
                    try {
                        String connectorId = keyArray.get(i);
                        ServerConnector connector = connectorMap
                                .getConnector(connectorId);
                        if (null != connector) {
                            Profiler.enter("updateConnectorState inner loop");
                            if (Profiler.isEnabled()) {
                                Profiler.enter("Decode connector state "
                                        + Util.getSimpleName(connector));
                            }

                            JSONObject stateJson = new JSONObject(
                                    states.getJavaScriptObject(connectorId));

                            if (connector instanceof HasJavaScriptConnectorHelper) {
                                ((HasJavaScriptConnectorHelper) connector)
                                        .getJavascriptConnectorHelper()
                                        .setNativeState(
                                                stateJson.getJavaScriptObject());
                            }

                            SharedState state = connector.getState();

                            Profiler.enter("updateConnectorState decodeValue");
                            JsonDecoder.decodeValue(new Type(state.getClass()
                                    .getName(), null), stateJson, state,
                                    ApplicationConnection.this);
                            Profiler.leave("updateConnectorState decodeValue");

                            if (Profiler.isEnabled()) {
                                Profiler.leave("Decode connector state "
                                        + Util.getSimpleName(connector));
                            }

                            Profiler.enter("updateConnectorState create event");

                            boolean isNewConnector = remainingNewConnectors
                                    .contains(connectorId);
                            if (isNewConnector) {
                                remainingNewConnectors.remove(connectorId);
                            }

                            StateChangeEvent event = new StateChangeEvent(
                                    connector, stateJson, isNewConnector);
                            events.add(event);
                            Profiler.leave("updateConnectorState create event");

                            Profiler.leave("updateConnectorState inner loop");
                        }
                    } catch (final Throwable e) {
                        VConsole.error(e);
                    }
                }

                Profiler.enter("updateConnectorState newWithoutState");
                // Fire events for properties using the default value for newly
                // created connectors even if there were no state changes
                JsArrayString dump = remainingNewConnectors.dump();
                int length = dump.length();
                for (int i = 0; i < length; i++) {
                    String connectorId = dump.get(i);
                    ServerConnector connector = connectorMap
                            .getConnector(connectorId);

                    StateChangeEvent event = new StateChangeEvent(connector,
                            new JSONObject(), true);

                    events.add(event);

                }
                Profiler.leave("updateConnectorState newWithoutState");

                Profiler.leave("updateConnectorState");

                return events;
            }

            /**
             * Updates the connector hierarchy and returns a list of events that
             * should be fired after update of the hierarchy and the state is
             * done.
             *
             * @param json
             *            The JSON containing the hierarchy information
             * @return A collection of events that should be fired when update
             *         of hierarchy and state is complete and a list of all
             *         connectors for which the parent has changed
             */
            private ConnectorHierarchyUpdateResult updateConnectorHierarchy(
                    ValueMap json) {
                ConnectorHierarchyUpdateResult result = new ConnectorHierarchyUpdateResult();

                VConsole.log(" * Updating connector hierarchy");
                if (!json.containsKey("hierarchy")) {
                    return result;
                }

                Profiler.enter("updateConnectorHierarchy");

                FastStringSet maybeDetached = FastStringSet.create();

                ValueMap hierarchies = json.getValueMap("hierarchy");
                JsArrayString hierarchyKeys = hierarchies.getKeyArray();
                for (int i = 0; i < hierarchyKeys.length(); i++) {
                    try {
                        Profiler.enter("updateConnectorHierarchy hierarchy entry");

                        String connectorId = hierarchyKeys.get(i);
                        ServerConnector parentConnector = connectorMap
                                .getConnector(connectorId);
                        JsArrayString childConnectorIds = hierarchies
                                .getJSStringArray(connectorId);
                        int childConnectorSize = childConnectorIds.length();

                        Profiler.enter("updateConnectorHierarchy find new connectors");

                        List<ServerConnector> newChildren = new ArrayList<ServerConnector>();
                        List<ComponentConnector> newComponents = new ArrayList<ComponentConnector>();
                        for (int connectorIndex = 0; connectorIndex < childConnectorSize; connectorIndex++) {
                            String childConnectorId = childConnectorIds
                                    .get(connectorIndex);
                            ServerConnector childConnector = connectorMap
                                    .getConnector(childConnectorId);
                            if (childConnector == null) {
                                VConsole.error("Hierarchy claims that "
                                        + childConnectorId
                                        + " is a child for "
                                        + connectorId
                                        + " ("
                                        + parentConnector.getClass().getName()
                                        + ") but no connector with id "
                                        + childConnectorId
                                        + " has been registered. "
                                        + "More information might be available in the server-side log if assertions are enabled");
                                continue;
                            }
                            newChildren.add(childConnector);
                            if (childConnector instanceof ComponentConnector) {
                                newComponents
                                        .add((ComponentConnector) childConnector);
                            } else if (!(childConnector instanceof AbstractExtensionConnector)) {
                                throw new IllegalStateException(
                                        Util.getConnectorString(childConnector)
                                                + " is not a ComponentConnector nor an AbstractExtensionConnector");
                            }
                            if (childConnector.getParent() != parentConnector) {
                                childConnector.setParent(parentConnector);
                                result.parentChangedIds.add(childConnectorId);
                                // Not detached even if previously removed from
                                // parent
                                maybeDetached.remove(childConnectorId);
                            }
                        }

                        Profiler.leave("updateConnectorHierarchy find new connectors");

                        // TODO This check should be done on the server side in
                        // the future so the hierarchy update is only sent when
                        // something actually has changed
                        List<ServerConnector> oldChildren = parentConnector
                                .getChildren();
                        boolean actuallyChanged = !Util.collectionsEquals(
                                oldChildren, newChildren);

                        if (!actuallyChanged) {
                            continue;
                        }

                        Profiler.enter("updateConnectorHierarchy handle HasComponentsConnector");

                        if (parentConnector instanceof HasComponentsConnector) {
                            HasComponentsConnector ccc = (HasComponentsConnector) parentConnector;
                            List<ComponentConnector> oldComponents = ccc
                                    .getChildComponents();
                            if (!Util.collectionsEquals(oldComponents,
                                    newComponents)) {
                                // Fire change event if the hierarchy has
                                // changed
                                ConnectorHierarchyChangeEvent event = GWT
                                        .create(ConnectorHierarchyChangeEvent.class);
                                event.setOldChildren(oldComponents);
                                event.setConnector(parentConnector);
                                ccc.setChildComponents(newComponents);
                                result.events.add(event);
                            }
                        } else if (!newComponents.isEmpty()) {
                            VConsole.error("Hierachy claims "
                                    + Util.getConnectorString(parentConnector)
                                    + " has component children even though it isn't a HasComponentsConnector");
                        }

                        Profiler.leave("updateConnectorHierarchy handle HasComponentsConnector");

                        Profiler.enter("updateConnectorHierarchy setChildren");
                        parentConnector.setChildren(newChildren);
                        Profiler.leave("updateConnectorHierarchy setChildren");

                        Profiler.enter("updateConnectorHierarchy find removed children");

                        /*
                         * Find children removed from this parent and mark for
                         * removal unless they are already attached to some
                         * other parent.
                         */
                        for (ServerConnector oldChild : oldChildren) {
                            if (oldChild.getParent() != parentConnector) {
                                // Ignore if moved to some other connector
                                continue;
                            }

                            if (!newChildren.contains(oldChild)) {
                                /*
                                 * Consider child detached for now, will be
                                 * cleared if it is later on added to some other
                                 * parent.
                                 */
                                maybeDetached.add(oldChild.getConnectorId());
                            }
                        }

                        Profiler.leave("updateConnectorHierarchy find removed children");
                    } catch (final Throwable e) {
                        VConsole.error(e);
                    } finally {
                        Profiler.leave("updateConnectorHierarchy hierarchy entry");
                    }
                }

                Profiler.enter("updateConnectorHierarchy detach removed connectors");

                /*
                 * Connector is in maybeDetached at this point if it has been
                 * removed from its parent but not added to any other parent
                 */
                JsArrayString maybeDetachedArray = maybeDetached.dump();
                for (int i = 0; i < maybeDetachedArray.length(); i++) {
                    ServerConnector removed = connectorMap
                            .getConnector(maybeDetachedArray.get(i));
                    recursivelyDetach(removed, result.events);
                }

                Profiler.leave("updateConnectorHierarchy detach removed connectors");

                Profiler.leave("updateConnectorHierarchy");

                return result;

            }

            private void recursivelyDetach(ServerConnector connector,
                    JsArrayObject<ConnectorHierarchyChangeEvent> events) {

                /*
                 * Reset state in an attempt to keep it consistent with the
                 * hierarchy. No children and no parent is the initial situation
                 * for the hierarchy, so changing the state to its initial value
                 * is the closest we can get without data from the server.
                 * #10151
                 */
                Profiler.enter("ApplicationConnection recursivelyDetach reset state");
                try {
                    Profiler.enter("ApplicationConnection recursivelyDetach reset state - getStateType");
                    Type stateType = AbstractConnector.getStateType(connector);
                    Profiler.leave("ApplicationConnection recursivelyDetach reset state - getStateType");

                    // Empty state instance to get default property values from
                    Profiler.enter("ApplicationConnection recursivelyDetach reset state - createInstance");
                    Object defaultState = stateType.createInstance();
                    Profiler.leave("ApplicationConnection recursivelyDetach reset state - createInstance");

                    if (connector instanceof AbstractConnector) {
                        // optimization as the loop setting properties is very
                        // slow, especially on IE8
                        replaceState((AbstractConnector) connector,
                                defaultState);
                    } else {
                        SharedState state = connector.getState();

                        Profiler.enter("ApplicationConnection recursivelyDetach reset state - properties");
                        JsArrayObject<Property> properties = stateType
                                .getPropertiesAsArray();
                        int size = properties.size();
                        for (int i = 0; i < size; i++) {
                            Property property = properties.get(i);
                            property.setValue(state,
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                Type[] parameterTypes = null;
                if (!isLegacyVariableChange(invocation)
                        && !isJavascriptRpc(invocation)) {
                    try {
                        Type type = new Type(invocation.getInterfaceName(),
                                null);
                        Method method = type.getMethod(invocation
                                .getMethodName());
                        parameterTypes = method.getParameterTypes();
                    } catch (NoDataException e) {
                        throw new RuntimeException("No type data for "
                                + invocation.toString(), e);
                    }
                }

                for (int i = 0; i < invocation.getParameters().length; ++i) {
                    // TODO non-static encoder?
                    Type type = null;
                    if (parameterTypes != null) {
                        type = parameterTypes[i];
                    }
                    Object value = invocation.getParameters()[i];
                    paramJson.set(i, JsonEncoder.encode(value, type, this));
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     * method.
     *
     * @return a new widget instance to use for this component connector
     */
    protected Widget createWidget() {
        Type type = TypeData.getType(getClass());
        try {
            Type widgetType = type.getMethod("getWidget").getReturnType();
            Object instance = widgetType.createInstance();
            return (Widget) instance;
        } catch (NoDataException e) {
            throw new IllegalStateException(
                    "Default implementation of createWidget() does not work for "
                            + Util.getSimpleName(this)
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