org.apache.rocketmq.shade.ch.qos.logback.core.model.processor.AppenderModelHandler Maven / Gradle / Ivy
/**
* Logback: the reliable, generic, fast and flexible logging framework.
* Copyright (C) 1999-2021, 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.shade.ch.qos.logback.core.model.processor;
import java.util.Map;
import org.apache.rocketmq.shade.ch.qos.logback.core.Appender;
import org.apache.rocketmq.shade.ch.qos.logback.core.Context;
import org.apache.rocketmq.shade.ch.qos.logback.core.joran.JoranConstants;
import org.apache.rocketmq.shade.ch.qos.logback.core.model.AppenderModel;
import org.apache.rocketmq.shade.ch.qos.logback.core.model.Model;
import org.apache.rocketmq.shade.ch.qos.logback.core.spi.AppenderAttachable;
import org.apache.rocketmq.shade.ch.qos.logback.core.spi.LifeCycle;
import org.apache.rocketmq.shade.ch.qos.logback.core.util.OptionHelper;
public class AppenderModelHandler extends ModelHandlerBase {
Appender appender;
private boolean inError = false;
private boolean skipped = false;
AppenderAttachable appenderAttachable;
public AppenderModelHandler(Context context) {
super(context);
}
@SuppressWarnings("rawtypes")
static public ModelHandlerBase makeInstance(Context context, ModelInterpretationContext mic) {
return new AppenderModelHandler(context);
}
@Override
@SuppressWarnings("unchecked")
public void handle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
this.appender = null;
this.inError = false;
AppenderModel appenderModel = (AppenderModel) model;
String appenderName = mic.subst(appenderModel.getName());
if (!mic.hasDependers(appenderName)) {
addWarn("Appender named [" + appenderName + "] not referenced. Skipping further processing.");
skipped = true;
appenderModel.markAsSkipped();
return;
}
addInfo("Processing appender named [" + appenderName + "]");
String originalClassName = appenderModel.getClassName();
String className = mic.getImport(originalClassName);
try {
addInfo("About to instantiate appender of type [" + className + "]");
appender = (Appender) OptionHelper.instantiateByClassName(className, org.apache.rocketmq.shade.ch.qos.logback.core.Appender.class,
context);
appender.setContext(context);
appender.setName(appenderName);
mic.pushObject(appender);
} catch (Exception oops) {
inError = true;
addError("Could not create an Appender of type [" + className + "].", oops);
throw new ModelHandlerException(oops);
}
}
public void postHandle(ModelInterpretationContext mic, Model model) throws ModelHandlerException {
if (inError || skipped) {
return;
}
if (appender instanceof LifeCycle) {
((LifeCycle) appender).start();
}
mic.markStartOfNamedDependee(appender.getName());
Object o = mic.peekObject();
@SuppressWarnings("unchecked")
Map> appenderBag = (Map>) mic.getObjectMap()
.get(JoranConstants.APPENDER_BAG);
appenderBag.put(appender.getName(), appender);
if (o != appender) {
addWarn("The object at the of the stack is not the appender named [" + appender.getName()
+ "] pushed earlier.");
} else {
mic.popObject();
}
}
}