| /* |
| * 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.logging.log4j.spring.cloud.config.client; |
| |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.core.LogEvent; |
| import org.apache.logging.log4j.core.lookup.StrLookup; |
| import org.apache.logging.log4j.plugins.Plugin; |
| import org.apache.logging.log4j.status.StatusLogger; |
| import org.springframework.core.env.Environment; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Lookup for Spring properties. |
| */ |
| @Plugin(name = "spring", category = StrLookup.CATEGORY) |
| public class SpringLookup extends SpringEnvironmentHolder implements StrLookup { |
| |
| private static final Logger LOGGER = StatusLogger.getLogger(); |
| private static final String ACTIVE = "profiles.active"; |
| private static final String DEFAULT = "profiles.default"; |
| private static final String PATTERN = "\\[(\\d+?)\\]"; |
| private static final Pattern ACTIVE_PATTERN = Pattern.compile(ACTIVE + PATTERN); |
| private static final Pattern DEFAULT_PATTERN = Pattern.compile(DEFAULT + PATTERN); |
| |
| public SpringLookup() { |
| getEnvironment(); |
| } |
| |
| @Override |
| public String lookup(String key) { |
| Environment env = getEnvironment(); |
| if (env != null) { |
| String lowerKey = key.toLowerCase(); |
| if (lowerKey.startsWith(ACTIVE)) { |
| switch (env.getActiveProfiles().length) { |
| case 0: { |
| return null; |
| } |
| case 1: { |
| return env.getActiveProfiles()[0]; |
| } |
| default: { |
| Matcher matcher = ACTIVE_PATTERN.matcher(key); |
| if (matcher.matches()) { |
| try { |
| int index = Integer.parseInt(matcher.group(1)); |
| if (index < env.getActiveProfiles().length) { |
| return env.getActiveProfiles()[index]; |
| } else { |
| LOGGER.warn("Index out of bounds for Spring active profiles: {}", index); |
| return null; |
| } |
| } catch (Exception ex) { |
| LOGGER.warn("Unable to parse {} as integer value", matcher.group(1)); |
| return null; |
| } |
| |
| } else { |
| StringBuilder sb = new StringBuilder(); |
| for (String profile : env.getActiveProfiles()) { |
| if (sb.length() > 0) { |
| sb.append(","); |
| } |
| sb.append(profile); |
| } |
| return sb.toString(); |
| } |
| } |
| } |
| } else if (lowerKey.startsWith(DEFAULT)) { |
| switch (env.getDefaultProfiles().length) { |
| case 0: { |
| return null; |
| } |
| case 1: { |
| return env.getDefaultProfiles()[0]; |
| } |
| default: { |
| Matcher matcher = DEFAULT_PATTERN.matcher(key); |
| if (matcher.matches()) { |
| try { |
| int index = Integer.parseInt(matcher.group(1)); |
| if (index < env.getDefaultProfiles().length) { |
| return env.getDefaultProfiles()[index]; |
| } else { |
| LOGGER.warn("Index out of bounds for Spring default profiles: {}", index); |
| return null; |
| } |
| } catch (Exception ex) { |
| LOGGER.warn("Unable to parse {} as integer value", matcher.group(1)); |
| return null; |
| } |
| |
| } else { |
| StringBuilder sb = new StringBuilder(); |
| for (String profile : env.getDefaultProfiles()) { |
| if (sb.length() > 0) { |
| sb.append(","); |
| } |
| sb.append(profile); |
| } |
| return sb.toString(); |
| } |
| } |
| } |
| } |
| |
| return env.getProperty(key); |
| |
| } |
| return null; |
| } |
| |
| @Override |
| public String lookup(LogEvent event, String key) { |
| return lookup((key)); |
| } |
| } |