| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.commons.io.monitor; |
| |
| import java.io.File; |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| /** |
| * {@link FileAlterationListener} implementation that adds created, changed and deleted |
| * files/directories to a set of {@link Collection}s. |
| */ |
| public class CollectionFileListener implements FileAlterationListener, Serializable { |
| |
| private static final long serialVersionUID = 939724715678693963L; |
| private final boolean clearOnStart; |
| private final Collection<File> createdFiles = new ArrayList<>(); |
| private final Collection<File> changedFiles = new ArrayList<>(); |
| private final Collection<File> deletedFiles = new ArrayList<>(); |
| private final Collection<File> createdDirectories = new ArrayList<>(); |
| private final Collection<File> changedDirectories = new ArrayList<>(); |
| private final Collection<File> deletedDirectories = new ArrayList<>(); |
| |
| /** |
| * Create a new observer. |
| * |
| * @param clearOnStart true if clear() should be called by onStart(). |
| */ |
| public CollectionFileListener(final boolean clearOnStart) { |
| this.clearOnStart = clearOnStart; |
| } |
| |
| /** |
| * Clear file collections. |
| */ |
| public void clear() { |
| createdFiles.clear(); |
| changedFiles.clear(); |
| deletedFiles.clear(); |
| createdDirectories.clear(); |
| changedDirectories.clear(); |
| deletedDirectories.clear(); |
| } |
| |
| /** |
| * Gets the set of changed directories. |
| * |
| * @return Directories which have changed |
| */ |
| public Collection<File> getChangedDirectories() { |
| return changedDirectories; |
| } |
| |
| /** |
| * Gets the set of changed files. |
| * |
| * @return Files which have changed |
| */ |
| public Collection<File> getChangedFiles() { |
| return changedFiles; |
| } |
| |
| /** |
| * Gets the set of created directories. |
| * |
| * @return Directories which have been created |
| */ |
| public Collection<File> getCreatedDirectories() { |
| return createdDirectories; |
| } |
| |
| /** |
| * Gets the set of created files. |
| * |
| * @return Files which have been created |
| */ |
| public Collection<File> getCreatedFiles() { |
| return createdFiles; |
| } |
| |
| /** |
| * Gets the set of deleted directories. |
| * |
| * @return Directories which been deleted |
| */ |
| public Collection<File> getDeletedDirectories() { |
| return deletedDirectories; |
| } |
| |
| /** |
| * Gets the set of deleted files. |
| * |
| * @return Files which been deleted |
| */ |
| public Collection<File> getDeletedFiles() { |
| return deletedFiles; |
| } |
| |
| /** |
| * Directory changed Event. |
| * |
| * @param directory The directory changed |
| */ |
| @Override |
| public void onDirectoryChange(final File directory) { |
| changedDirectories.add(directory); |
| } |
| |
| /** |
| * Directory created Event. |
| * |
| * @param directory The directory created |
| */ |
| @Override |
| public void onDirectoryCreate(final File directory) { |
| createdDirectories.add(directory); |
| } |
| |
| /** |
| * Directory deleted Event. |
| * |
| * @param directory The directory deleted |
| */ |
| @Override |
| public void onDirectoryDelete(final File directory) { |
| deletedDirectories.add(directory); |
| } |
| |
| /** |
| * File changed Event. |
| * |
| * @param file The file changed |
| */ |
| @Override |
| public void onFileChange(final File file) { |
| changedFiles.add(file); |
| } |
| |
| /** |
| * File created Event. |
| * |
| * @param file The file created |
| */ |
| @Override |
| public void onFileCreate(final File file) { |
| createdFiles.add(file); |
| } |
| |
| /** |
| * File deleted Event. |
| * |
| * @param file The file deleted |
| */ |
| @Override |
| public void onFileDelete(final File file) { |
| deletedFiles.add(file); |
| } |
| |
| /** |
| * File system observer started checking event. |
| * |
| * @param observer The file system observer |
| */ |
| @Override |
| public void onStart(final FileAlterationObserver observer) { |
| if (clearOnStart) { |
| clear(); |
| } |
| } |
| |
| /** |
| * File system observer finished checking event. |
| * |
| * @param observer The file system observer |
| */ |
| @Override |
| public void onStop(final FileAlterationObserver observer) { |
| // noop |
| } |
| |
| } |