io.greptime.signal.RwLoggingSignalHandler Maven / Gradle / Ivy
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/*
* Copyright 2023 Greptime Team
*
* 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 io.greptime.signal;
import io.greptime.Util;
import io.greptime.common.SPI;
import io.greptime.common.signal.FileSignal;
import io.greptime.common.signal.FileSignalHelper;
import io.greptime.common.signal.SignalHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A signal handler that can reset RW_LOGGING by {@link Util#resetRwLogging()}.
*/
@SPI(priority = 95)
public class RwLoggingSignalHandler implements SignalHandler {
private static final Logger LOG = LoggerFactory.getLogger(RwLoggingSignalHandler.class);
@Override
public void handle(String signalName) {
if (FileSignalHelper.ignoreSignal(FileSignal.RwLogging)) {
LOG.info("`RW_LOGGING`={}.", Util.isRwLogging());
return;
}
boolean oldValue = Util.resetRwLogging();
LOG.info("Reset `RW_LOGGING` to {} triggered by signal: {}.", !oldValue, signalName);
}
}
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