| /* |
| * Copyright (c) 2012, Paul Merlin. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| package org.qi4j.runtime.activation; |
| |
| import java.util.Collections; |
| import java.util.LinkedHashSet; |
| import java.util.Set; |
| import org.qi4j.api.activation.Activator; |
| import org.qi4j.api.activation.PassivationException; |
| import org.qi4j.functional.Iterables; |
| |
| /** |
| * Instance of a Zest Activators of one Activation target. Contains ordered |
| * Activators and roll the Activation on the target. |
| * |
| * @param <ActivateeType> Type of the activation target |
| */ |
| public class ActivatorsInstance<ActivateeType> |
| implements Activator<ActivateeType> |
| { |
| @SuppressWarnings( {"raw", "unchecked"} ) |
| public static final ActivatorsInstance EMPTY = new ActivatorsInstance( Collections.emptyList() ); |
| |
| private final Iterable<Activator<ActivateeType>> activators; |
| |
| public ActivatorsInstance( Iterable<Activator<ActivateeType>> activators ) |
| { |
| this.activators = activators; |
| } |
| |
| @Override |
| public void beforeActivation( ActivateeType activating ) |
| throws Exception |
| { |
| for( Activator<ActivateeType> activator : activators ) |
| { |
| activator.beforeActivation( activating ); |
| } |
| } |
| |
| @Override |
| public void afterActivation( ActivateeType activated ) |
| throws Exception |
| { |
| for( Activator<ActivateeType> activator : activators ) |
| { |
| activator.afterActivation( activated ); |
| } |
| } |
| |
| @Override |
| public void beforePassivation( ActivateeType passivating ) |
| throws Exception |
| { |
| Set<Exception> exceptions = new LinkedHashSet<>(); |
| for( Activator<ActivateeType> activator : Iterables.reverse( activators ) ) |
| { |
| try |
| { |
| activator.beforePassivation( passivating ); |
| } |
| catch( Exception ex ) |
| { |
| exceptions.add( ex ); |
| } |
| } |
| if( !exceptions.isEmpty() ) |
| { |
| throw new PassivationException( exceptions ); |
| } |
| } |
| |
| @Override |
| public void afterPassivation( ActivateeType passivated ) |
| throws Exception |
| { |
| Set<Exception> exceptions = new LinkedHashSet<>(); |
| for( Activator<ActivateeType> activator : Iterables.reverse( activators ) ) |
| { |
| try |
| { |
| activator.afterPassivation( passivated ); |
| } |
| catch( Exception ex ) |
| { |
| exceptions.add( ex ); |
| } |
| } |
| if( !exceptions.isEmpty() ) |
| { |
| throw new PassivationException( exceptions ); |
| } |
| } |
| |
| } |