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BAEL1731 Adding listappender

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This commit is contained in:
Chirag Dewan 2020-05-04 18:11:12 +05:30
parent fe9405607a
commit 7ec77df096
1 changed files with 48 additions and 0 deletions
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48
logging-modules/log4j2/src/main/java/com/baeldung/logging/log4j2/plugins/ListAppender.java Normal file
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/**
*
*/
package com.baeldung.logging.log4j2.plugins;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.Appender;
import org.apache.logging.log4j.core.Core;
import org.apache.logging.log4j.core.Filter;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.appender.AbstractAppender;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
import org.apache.logging.log4j.core.config.plugins.PluginElement;
import org.apache.logging.log4j.core.config.plugins.PluginFactory;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static java.util.Collections.synchronizedList;
@Plugin(name = "ListAppender", category = Core.CATEGORY_NAME, elementType = Appender.ELEMENT_TYPE)
public class ListAppender extends AbstractAppender {
private List<LogEvent> logList;
protected ListAppender(String name, Filter filter) {
super(name, filter, null);
logList = synchronizedList(new ArrayList<>());
}
@PluginFactory
public static ListAppender createAppender(@PluginAttribute("name") String name, @PluginElement("Filter") final Filter filter) {
return new ListAppender(name, filter);
}
@Override
public void append(LogEvent event) {
if (event.getLevel()
.isLessSpecificThan(Level.WARN)) {
error("Unable to log less than WARN level.");
return;
}
logList.add(event);
}
}