/*

* SPDX-License-Identifier: Apache-2.0

* Copyright 2018-2019 The Feast Authors

*

* 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

*

* https://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.

*/

package feast.core.log;

import com.google.common.base.Strings;

import java.util.Date;

import java.util.Map;

import java.util.TreeMap;

import lombok.extern.log4j.Log4j2;

import org.apache.logging.log4j.Level;

import org.apache.logging.log4j.message.ObjectMessage;

@Log4j2

public class AuditLogger {

private static final Level AUDIT_LEVEL = Level.getLevel("AUDIT");

/**

* Log to stdout a json formatted audit log.

*

* @param resource type of resource

* @param id id of resource, if any

* @param action action taken

* @param detail additional detail. Supports string formatting.

* @param args arguments to the detail string

*/

public static void log(

Resource resource, String id, Action action, String detail, Object... args) {

Map<String, String> map = new TreeMap<>();

map.put("timestamp", new Date().toString());

map.put("resource", resource.toString());

map.put("id", id);

map.put("action", action.toString());

map.put("detail", Strings.lenientFormat(detail, args));

ObjectMessage msg = new ObjectMessage(map);

log.log(AUDIT_LEVEL, msg);

}

}