    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
    015    package org.apache.tapestry5.internal.services;
    016
    017    import java.io.IOException;
    018
    019    import org.apache.tapestry5.ComponentResources;
    020    import org.apache.tapestry5.EventConstants;
    021    import org.apache.tapestry5.EventContext;
    022    import org.apache.tapestry5.TrackableComponentEventCallback;
    023    import org.apache.tapestry5.services.ComponentEventResultProcessor;
    024
    025    public 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    }