| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| package org.apache.zookeeper; |
| |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.slf4j.Logger; |
| |
| /** |
| * Provide insight into the runtime environment. |
| * |
| */ |
| public class Environment { |
| |
| public static final String JAAS_CONF_KEY = "java.security.auth.login.config"; |
| |
| public static class Entry { |
| |
| private String k; |
| private String v; |
| public Entry(String k, String v) { |
| this.k = k; |
| this.v = v; |
| } |
| public String getKey() { |
| return k; |
| } |
| public String getValue() { |
| return v; |
| } |
| |
| @Override |
| public String toString() { |
| return k + "=" + v; |
| } |
| |
| } |
| |
| private static void put(List<Entry> l, String k, String v) { |
| l.add(new Entry(k, v)); |
| } |
| |
| public static List<Entry> list() { |
| List<Entry> l = new ArrayList<>(); |
| put(l, "zookeeper.version", Version.getFullVersion()); |
| |
| try { |
| put(l, "host.name", InetAddress.getLocalHost().getCanonicalHostName()); |
| } catch (UnknownHostException e) { |
| put(l, "host.name", "<NA>"); |
| } |
| |
| put(l, "java.version", System.getProperty("java.version", "<NA>")); |
| put(l, "java.vendor", System.getProperty("java.vendor", "<NA>")); |
| put(l, "java.home", System.getProperty("java.home", "<NA>")); |
| put(l, "java.class.path", System.getProperty("java.class.path", "<NA>")); |
| put(l, "java.library.path", System.getProperty("java.library.path", "<NA>")); |
| put(l, "java.io.tmpdir", System.getProperty("java.io.tmpdir", "<NA>")); |
| put(l, "java.compiler", System.getProperty("java.compiler", "<NA>")); |
| put(l, "os.name", System.getProperty("os.name", "<NA>")); |
| put(l, "os.arch", System.getProperty("os.arch", "<NA>")); |
| put(l, "os.version", System.getProperty("os.version", "<NA>")); |
| put(l, "user.name", System.getProperty("user.name", "<NA>")); |
| put(l, "user.home", System.getProperty("user.home", "<NA>")); |
| put(l, "user.dir", System.getProperty("user.dir", "<NA>")); |
| |
| // Get memory information. |
| Runtime runtime = Runtime.getRuntime(); |
| int mb = 1024 * 1024; |
| put(l, "os.memory.free", runtime.freeMemory() / mb + "MB"); |
| put(l, "os.memory.max", runtime.maxMemory() / mb + "MB"); |
| put(l, "os.memory.total", runtime.totalMemory() / mb + "MB"); |
| |
| return l; |
| } |
| |
| public static void logEnv(String msg, Logger log) { |
| List<Entry> env = Environment.list(); |
| for (Entry e : env) { |
| log.info(msg + e.toString()); |
| } |
| } |
| |
| } |