package org.apache.logging.log4j.core.config;
import java.io.File;
import java.util.List;
import org.apache.logging.log4j.core.util.AbstractWatcher;
import org.apache.logging.log4j.core.util.FileWatcher;
import org.apache.logging.log4j.core.util.Source;
import org.apache.logging.log4j.core.util.Watcher;
public class ConfigurationFileWatcher extends AbstractWatcher implements FileWatcher {
private File file;
private long lastModifiedMillis;
public ConfigurationFileWatcher(final Configuration configuration, final Reconfigurable reconfigurable,
final List<ConfigurationListener> configurationListeners, long lastModifiedMillis) {
super(configuration, reconfigurable, configurationListeners);
this.lastModifiedMillis = lastModifiedMillis;
}
public long getLastModified() {
return file != null ? file.lastModified() : 0;
}
@Override
public void fileModified(final File file) {
lastModifiedMillis = file.lastModified();
}
@Override
public void watching(Source source) {
file = source.getFile();
lastModifiedMillis = file.lastModified();
super.watching(source);
}
@Override
public boolean isModified() {
return lastModifiedMillis != file.lastModified();
}
@Override
public Watcher newWatcher(final Reconfigurable reconfigurable, final List<ConfigurationListener> listeners,
long lastModifiedMillis) {
ConfigurationFileWatcher watcher = new ConfigurationFileWatcher(getConfiguration(), reconfigurable, listeners,
lastModifiedMillis);
if (getSource() != null) {
watcher.watching(getSource());
}
return watcher;
}
}