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}