net.logstash.logback.status.DelegatingStatusListener Maven / Gradle / Ivy
/*
* Copyright 2013-2022 the original author or authors.
*
* 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 net.logstash.logback.status;
import ch.qos.logback.core.Context;
import ch.qos.logback.core.spi.ContextAware;
import ch.qos.logback.core.spi.ContextAwareBase;
import ch.qos.logback.core.spi.LifeCycle;
import ch.qos.logback.core.status.Status;
import ch.qos.logback.core.status.StatusListener;
/**
* A {@link StatusListener} that delegates to another {@link StatusListener}
*/
public class DelegatingStatusListener extends ContextAwareBase implements StatusListener, LifeCycle {
private StatusListener delegate;
private volatile boolean started;
@Override
public void start() {
if (delegate == null) {
addError("delegate must be configured");
return;
}
if (delegate instanceof ContextAware) {
((ContextAware) delegate).setContext(context);
}
if (delegate instanceof LifeCycle) {
((LifeCycle) delegate).start();
}
started = true;
}
@Override
public void stop() {
if (delegate instanceof LifeCycle) {
((LifeCycle) delegate).stop();
}
started = false;
}
@Override
public boolean isStarted() {
return started;
}
@Override
public void addStatusEvent(Status status) {
delegate.addStatusEvent(status);
}
@Override
public void setContext(Context context) {
super.setContext(context);
}
public StatusListener getDelegate() {
return delegate;
}
public void setDelegate(StatusListener delegate) {
this.delegate = delegate;
}
}