org.apache.rocketmq.shaded.ch.qos.logback.core.joran.action.StatusListenerAction Maven / Gradle / Ivy
/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2015, QOS.ch. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation.
*/
package org.apache.rocketmq.shaded.ch.qos.logback.core.joran.action;
import org.apache.rocketmq.shaded.ch.qos.logback.core.spi.ContextAware;
import org.xml.sax.Attributes;
import org.apache.rocketmq.shaded.ch.qos.logback.core.joran.spi.ActionException;
import org.apache.rocketmq.shaded.ch.qos.logback.core.joran.spi.InterpretationContext;
import org.apache.rocketmq.shaded.ch.qos.logback.core.spi.LifeCycle;
import org.apache.rocketmq.shaded.ch.qos.logback.core.status.StatusListener;
import org.apache.rocketmq.shaded.ch.qos.logback.core.util.OptionHelper;
public class StatusListenerAction extends Action {
boolean inError = false;
Boolean effectivelyAdded = null;
StatusListener statusListener = null;
public void begin(InterpretationContext ec, String name, Attributes attributes) throws ActionException {
inError = false;
effectivelyAdded = null;
String className = attributes.getValue(CLASS_ATTRIBUTE);
if (OptionHelper.isEmpty(className)) {
addError("Missing class name for statusListener. Near [" + name + "] line " + getLineNumber(ec));
inError = true;
return;
}
try {
statusListener = (StatusListener) OptionHelper.instantiateByClassName(className, StatusListener.class, context);
effectivelyAdded = ec.getContext().getStatusManager().add(statusListener);
if (statusListener instanceof ContextAware) {
((ContextAware) statusListener).setContext(context);
}
addInfo("Added status listener of type [" + className + "]");
ec.pushObject(statusListener);
} catch (Exception e) {
inError = true;
addError("Could not create an StatusListener of type [" + className + "].", e);
throw new ActionException(e);
}
}
public void finish(InterpretationContext ec) {
}
public void end(InterpretationContext ec, String e) {
if (inError) {
return;
}
if (isEffectivelyAdded() && statusListener instanceof LifeCycle) {
((LifeCycle) statusListener).start();
}
Object o = ec.peekObject();
if (o != statusListener) {
addWarn("The object at the of the stack is not the statusListener pushed earlier.");
} else {
ec.popObject();
}
}
private boolean isEffectivelyAdded() {
if (effectivelyAdded == null)
return false;
return effectivelyAdded;
}
}