001// *************************************************************************************************************************** 002// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * 003// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * 004// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance * 005// * with the License. You may obtain a copy of the License at * 006// * * 007// * http://www.apache.org/licenses/LICENSE-2.0 * 008// * * 009// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an * 010// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * 011// * specific language governing permissions and limitations under the License. * 012// *************************************************************************************************************************** 013package org.apache.juneau.microservice.jetty.resources; 014 015import static org.apache.juneau.http.HttpMethod.*; 016 017import java.io.*; 018 019import org.apache.juneau.html.annotation.HtmlDocConfig; 020import org.apache.juneau.internal.*; 021import org.apache.juneau.microservice.jetty.*; 022import org.apache.juneau.rest.*; 023import org.apache.juneau.rest.annotation.*; 024import org.apache.juneau.rest.helper.*; 025 026/** 027 * Microservice debug utilities. 028 */ 029@Rest( 030 path="/debug", 031 title="Debug", 032 description="Debug Utilities.", 033 allowedMethodParams="OPTIONS,POST" 034) 035@HtmlDocConfig( 036 navlinks={ 037 "up: request:/..", 038 "jetty-thread-dump: servlet:/jetty/dump?method=POST", 039 "options: servlet:/?method=OPTIONS", 040 "stats: servlet:/stats" 041 } 042) 043@SuppressWarnings("javadoc") 044public class DebugResource extends BasicRestServlet { 045 private static final long serialVersionUID = 1L; 046 047 /** 048 * [GET /] - Shows child utilities. 049 * 050 * @return Child utility links. 051 * @throws Exception 052 */ 053 @RestMethod(name=GET, path="/", description="Show contents of config file.") 054 public ResourceDescriptions getChildren() throws Exception { 055 return new ResourceDescriptions() 056 .append("jetty/dump", "Jetty thread dump") 057 ; 058 } 059 060 /** 061 * [GET /jetty/dump] - Generates and retrieves the jetty thread dump. 062 */ 063 @RestMethod(name=GET, path="/jetty/dump", description="Generates and retrieves the jetty thread dump.") 064 public Reader getJettyDump(RestRequest req, RestResponse res) { 065 res.setContentType("text/plain"); 066 return new StringReader(JettyMicroservice.getInstance().getServer().dump()); 067 } 068 069 /** 070 * [POST /jetty/dump] - Generates and saves the jetty thread dump file to jetty-thread-dump.log. 071 */ 072 @RestMethod(name=POST, path="/jetty/dump", description="Generates and saves the jetty thread dump file to jetty-thread-dump.log.") 073 public String createJettyDump(RestRequest req, RestResponse res) throws Exception { 074 String dump = JettyMicroservice.getInstance().getServer().dump(); 075 try (FileWriter fw = new FileWriter(req.getConfig().getString("Logging/logDir") + "/jetty-thread-dump.log")) { 076 IOUtils.pipe(dump, fw); 077 } 078 return "OK"; 079 } 080}