2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 - 2019 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.vid.controller;
23 import ch.qos.logback.classic.LoggerContext;
24 import ch.qos.logback.core.Appender;
25 import ch.qos.logback.core.FileAppender;
26 import ch.qos.logback.core.spi.AppenderAttachable;
27 import com.att.eelf.configuration.Configuration;
28 import java.util.stream.Stream;
29 import javax.ws.rs.InternalServerErrorException;
30 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
31 import org.onap.vid.utils.Streams;
32 import org.slf4j.LoggerFactory;
33 import org.springframework.stereotype.Component;
36 public final class LogfilePathCreator {
38 private static final EELFLoggerDelegate LOGGER = EELFLoggerDelegate.getLogger(LogfilePathCreator.class);
40 String getLogfilePath(String loggerName) {
42 Find the requested logger, and pull all of it's appenders.
43 Find the first of the appenders that is a FileAppender, and return it's
46 LOGGER.debug("Searching for logfile path with loggerName: ", loggerName);
47 LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();;
48 return context.getLoggerList().stream()
49 .filter(logger -> logger.getName().equals(Configuration.GENERAL_LOGGER_NAME + "." + loggerName))
50 .flatMap(this::pullSubAppenders)
51 .flatMap(appender -> {
52 // Appender might be "attachable", if so - roll-up its sub-appenders
53 return (appender instanceof AppenderAttachable) ?
54 pullSubAppenders((AppenderAttachable<?>) appender) : Stream.of(appender);
56 .filter(appender -> appender instanceof FileAppender)
57 .map(appender -> (FileAppender<?>) appender)
58 .map(FileAppender::getFile)
60 .orElseThrow(() -> new InternalServerErrorException("logfile for " + loggerName + " not found"));
63 private <T> Stream<Appender<T>> pullSubAppenders(AppenderAttachable<T> logger) {
64 return Streams.fromIterator(logger.iteratorForAppenders());