LogsResource.java

package io.github.jhipster.sample.web.rest;

/*-
 * #%L
 * Jhipster Sample Application
 * %%
 * Copyright (C) 2017 Osgiliath
 * %%
 * 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.
 * #L%
 */

import io.github.jhipster.sample.web.rest.vm.LoggerVM;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.LoggerContext;
import com.codahale.metrics.annotation.Timed;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * Controller for view and managing Log Level at runtime.
 */
@RestController
@RequestMapping("/management")
public class LogsResource {

    @GetMapping("/logs")
    @Timed
    public List<LoggerVM> getList() {
        LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
        return context.getLoggerList()
            .stream()
            .map(LoggerVM::new)
            .collect(Collectors.toList());
    }

    @PutMapping("/logs")
    @ResponseStatus(HttpStatus.NO_CONTENT)
    @Timed
    public void changeLevel(@RequestBody LoggerVM jsonLogger) {
        LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
        context.getLogger(jsonLogger.getName()).setLevel(Level.valueOf(jsonLogger.getLevel()));
    }
}