001// Copyright 2010 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007// http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.internal.services;
016
017import java.io.IOException;
018
019import org.apache.tapestry5.ComponentResources;
020import org.apache.tapestry5.EventConstants;
021import org.apache.tapestry5.EventContext;
022import org.apache.tapestry5.TrackableComponentEventCallback;
023import org.apache.tapestry5.services.ComponentEventResultProcessor;
024
025public class PageActivatorImpl implements PageActivator
026{
027
028    @SuppressWarnings("unchecked")
029    public boolean activatePage(ComponentResources pageResources, EventContext activationContext,
030            ComponentEventResultProcessor resultProcessor) throws IOException
031    {
032        TrackableComponentEventCallback callback = new ComponentResultProcessorWrapper(resultProcessor);
033
034        pageResources.triggerContextEvent(EventConstants.ACTIVATE, activationContext, callback);
035
036        if (callback.isAborted())
037        {
038            callback.rethrow();
039            return true;
040        }
041
042        return false;
043    }
044
045}