| /* |
| * 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.logging.log4j.core.util; |
| |
| import java.io.File; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.logging.log4j.core.config.Configuration; |
| import org.apache.logging.log4j.core.config.ConfigurationListener; |
| import org.apache.logging.log4j.core.config.Reconfigurable; |
| |
| /** |
| * |
| */ |
| public class WrappedFileWatcher extends AbstractWatcher implements FileWatcher { |
| |
| private final FileWatcher watcher; |
| private volatile long lastModifiedMillis; |
| |
| public WrappedFileWatcher(FileWatcher watcher, final Configuration configuration, |
| final Reconfigurable reconfigurable, final List<ConfigurationListener> configurationListeners, |
| final long lastModifiedMillis) { |
| super(configuration, reconfigurable, configurationListeners); |
| this.watcher = watcher; |
| this.lastModifiedMillis = lastModifiedMillis; |
| } |
| |
| |
| public WrappedFileWatcher(FileWatcher watcher) { |
| super(null, null, null); |
| this.watcher = watcher; |
| } |
| |
| public long getLastModified() { |
| return lastModifiedMillis; |
| } |
| |
| @Override |
| public void fileModified(File file) { |
| watcher.fileModified(file); |
| } |
| |
| @Override |
| public boolean isModified() { |
| long lastModified = getSource().getFile().lastModified(); |
| if (lastModifiedMillis != lastModified) { |
| lastModifiedMillis = lastModified; |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public List<ConfigurationListener> getListeners() { |
| if (super.getListeners() != null) { |
| return Collections.unmodifiableList(super.getListeners()); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public void modified() { |
| if (getListeners() != null) { |
| super.modified(); |
| } |
| fileModified(getSource().getFile()); |
| lastModifiedMillis = getSource().getFile().lastModified(); |
| } |
| |
| @Override |
| public void watching(Source source) { |
| lastModifiedMillis = source.getFile().lastModified(); |
| super.watching(source); |
| } |
| |
| @Override |
| public Watcher newWatcher(final Reconfigurable reconfigurable, final List<ConfigurationListener> listeners, |
| long lastModifiedMillis) { |
| WrappedFileWatcher watcher = new WrappedFileWatcher(this.watcher, getConfiguration(), reconfigurable, listeners, |
| lastModifiedMillis); |
| if (getSource() != null) { |
| watcher.watching(getSource()); |
| } |
| return watcher; |
| } |
| } |