org.apache.rocketmq.shaded.ch.qos.logback.core.joran.action.AppenderRefAction 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.xml.sax.Attributes;
import org.apache.rocketmq.shaded.ch.qos.logback.core.Appender;
import org.apache.rocketmq.shaded.ch.qos.logback.core.CoreConstants;
import org.apache.rocketmq.shaded.ch.qos.logback.core.joran.spi.InterpretationContext;
import org.apache.rocketmq.shaded.ch.qos.logback.core.spi.AppenderAttachable;
import org.apache.rocketmq.shaded.ch.qos.logback.core.util.OptionHelper;
import java.util.HashMap;
public class AppenderRefAction extends Action {
boolean inError = false;
@SuppressWarnings("unchecked")
public void begin(InterpretationContext ec, String tagName, Attributes attributes) {
// Let us forget about previous errors (in this object)
inError = false;
// logger.debug("begin called");
Object o = ec.peekObject();
if (!(o instanceof AppenderAttachable)) {
String errMsg = "Could not find an AppenderAttachable at the top of execution stack. Near [" + tagName + "] line " + getLineNumber(ec);
inError = true;
addError(errMsg);
return;
}
AppenderAttachable appenderAttachable = (AppenderAttachable) o;
String appenderName = ec.subst(attributes.getValue(ActionConst.REF_ATTRIBUTE));
if (OptionHelper.isEmpty(appenderName)) {
// print a meaningful error message and return
String errMsg = "Missing appender ref attribute in tag.";
inError = true;
addError(errMsg);
return;
}
HashMap> appenderBag = (HashMap>) ec.getObjectMap().get(ActionConst.APPENDER_BAG);
Appender appender = (Appender) appenderBag.get(appenderName);
if (appender == null) {
String msg = "Could not find an appender named [" + appenderName + "]. Did you define it below instead of above in the configuration file?";
inError = true;
addError(msg);
addError("See " + CoreConstants.CODES_URL + "#appender_order for more details.");
return;
}
addInfo("Attaching appender named [" + appenderName + "] to " + appenderAttachable);
appenderAttachable.addAppender(appender);
}
public void end(InterpretationContext ec, String n) {
}
}