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/*-
* ============LICENSE_START=======================================================
* OPENECOMP - MSO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.mso.logger;
import java.util.List;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.joran.JoranConfigurator;
import ch.qos.logback.core.Appender;
@Path("/logging")
public class MsoLoggingServlet {
private static final String DEBUGLOG = "asyncEELFDebug";
private MsoLogger logger = MsoLogger.getMsoLogger (MsoLogger.Catalog.GENERAL);
private static final String GENERAL_LOGGER = "com.att.eelf.error";
private static final String AUDIT_LOGGER = "com.att.eelf.audit";
private static final String METRICS_LOGGER = "com.att.eelf.metrics";
@GET
@Path("/setLevel/{logContext}/{level}")
@Produces("text/plain")
public Response setLogLevel (@PathParam("logContext") String logContext, @PathParam("level") String level) {
logger.info (MessageEnum.LOGGER_SETUP, "", "");
LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
JoranConfigurator jc = new JoranConfigurator();
jc.setContext(context);
Logger updateLogger = context.getLogger (logContext);
if (updateLogger == null) {
logger.info (MessageEnum.LOGGER_NOT_FOUND, logContext, "", "");
String response = "Unknown logger: " + logContext;
return Response.status (200).entity (response).build ();
}
Level currentLevel = updateLogger.getLevel();
if (!currentLevel.equals(Level.toLevel(level))) {
Level newLevel = Level.toLevel (level);
updateLogger.setLevel (newLevel);
logger.info (MessageEnum.LOGGER_UPDATE_SUC, updateLogger.getName (), currentLevel.toString(), newLevel.toString());
}
String response = "Log level set to: " + level + " for " + updateLogger.getName ();
return Response.status (200).entity (response).build ();
}
@GET
@Path("/loggers")
@Produces("text/plain")
@SuppressWarnings("rawtypes")
public Response getLoggers () {
StringBuilder response = new StringBuilder ();
LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
JoranConfigurator jc = new JoranConfigurator();
jc.setContext(context);
List <Logger> loggerList = context.getLoggerList();
for (Logger logger:loggerList) {
//if (logger.getLevel() != null) {
response.append (logger.getName () + ":" + logger.getLevel () + " (" + logger.getEffectiveLevel () + ")\n");
//}
}
return Response.status (200).entity (response).build ();
}
@GET
@Path("/debug")
@Produces("text/plain")
@SuppressWarnings("rawtypes")
/*
* Debug log is used as a general log to store all the logs events, including events generated by MSO code or by
* components used by MSO.
* This method will only enable/disable the function to store MSO generated events into debug log,
* since those events will also be generated to error, audit, metrics log.
* The events generated by other components will not be affected by this interface.
*/
public Response updateDebugAppender (@DefaultValue("true") @QueryParam("enable") Boolean enable) {
String response;
LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
JoranConfigurator jc = new JoranConfigurator();
jc.setContext(context);
List <Logger> loggerList = context.getLoggerList();
Logger rootLogger = context.getLogger("ROOT");
Appender appender = rootLogger.getAppender(DEBUGLOG);
if (null == appender) {
return Response.status (500).entity ("Not able to found Debug appender. Please verify to make sure the needed logback file is present in the config folder.").build ();
}
if (enable) {
logger.info (MessageEnum.LOGGER_UPDATE_DEBUG, "", "");
for (Logger logger: loggerList) {
if (isMsoLogger (logger.getName ()) && logger.getAppender (DEBUGLOG) == null && logger.getLevel () != null) {
logger.addAppender (appender);
logger.setAdditive(false);
}
}
logger.info (MessageEnum.LOGGER_UPDATE_DEBUG_SUC, "enabled", "", "");
response = "Debuglog successfully enabled.";
} else {
logger.info (MessageEnum.LOGGER_UPDATE_DEBUG, "", "");
for (Logger logger: loggerList) {
if (isMsoLogger (logger.getName ())) {
logger.detachAppender (appender);
}
}
logger.info (MessageEnum.LOGGER_UPDATE_DEBUG_SUC, "disabled", "", "");
response = "Debuglog successfully disabled.";
}
return Response.status (200).entity (response).build ();
}
private boolean isMsoLogger (String loggerName) {
return loggerName.contains (GENERAL_LOGGER) || loggerName.equals (AUDIT_LOGGER)
|| loggerName.equals (METRICS_LOGGER);
}
}
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