| /* |
| * Copyright 2011 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.apache.zest.library.uowfile.plural; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.zest.api.entity.Lifecycle; |
| import org.apache.zest.api.entity.LifecycleException; |
| import org.apache.zest.api.injection.scope.This; |
| import org.apache.zest.api.mixin.Mixins; |
| |
| @Mixins( HasUoWFilesLifecycle.Mixin.class ) |
| public interface HasUoWFilesLifecycle<T extends Enum<T>> |
| extends HasUoWFiles<T>, Lifecycle |
| { |
| public class Mixin |
| implements Lifecycle |
| { |
| @This |
| private HasUoWFiles<?> hasUoWFiles; |
| |
| @Override |
| public void create() |
| throws LifecycleException |
| { |
| // NOOP |
| } |
| |
| @Override |
| public void remove() |
| throws LifecycleException |
| { |
| // We use the managed files so that if the UoW gets discarded the files will be restored |
| List<File> errors = new ArrayList<>(); |
| for( File eachFile : hasUoWFiles.managedFiles() ) |
| { |
| if( eachFile.exists() ) |
| { |
| if( !eachFile.delete() ) |
| { |
| errors.add( eachFile ); |
| } |
| } |
| } |
| if( !errors.isEmpty() ) |
| { |
| throw new LifecycleException( "Unable to delete existing files: " + errors ); |
| } |
| } |
| } |
| |
| } |