| /* |
| * 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.felix.log; |
| |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.locks.Lock; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| import org.osgi.service.log.LogLevel; |
| import org.osgi.service.log.admin.LoggerContext; |
| |
| public class LoggerContextImpl implements LoggerContext { |
| |
| static final String ROOT = "ROOT"; |
| |
| private final String _name; |
| protected volatile Map<String, LogLevel> _levels; |
| protected final Lock _lock = new ReentrantLock(); |
| protected final LoggerAdminImpl _loggerAdminImpl; |
| protected final LoggerContext _rootContext; |
| |
| private volatile String _toString; |
| |
| public LoggerContextImpl(String name, LoggerAdminImpl loggerAdminImpl, LoggerContext rootLoggerContext) { |
| _name = name; |
| _loggerAdminImpl = loggerAdminImpl; |
| _rootContext = rootLoggerContext; |
| } |
| |
| public String getName() { |
| return _name; |
| } |
| |
| public LogLevel getEffectiveLogLevel(String name) { |
| _lock.lock(); |
| try { |
| if (_levels != null && !_levels.isEmpty()) { |
| String copy = name; |
| LogLevel level; |
| while (copy.length() > 0) { |
| level = _levels.get(copy); |
| if (level != null) { |
| return level; |
| } |
| if (ROOT.equals(copy)) |
| break; |
| copy = ancestor(copy); |
| } |
| } |
| return _rootContext.getEffectiveLogLevel(name); |
| } |
| finally { |
| _lock.unlock(); |
| } |
| } |
| |
| public Map<String, LogLevel> getLogLevels() { |
| _lock.lock(); |
| try { |
| if (_levels == null) { |
| return new HashMap<>(); |
| } |
| return new HashMap<>(_levels); |
| } |
| finally { |
| _lock.unlock(); |
| } |
| } |
| |
| public void setLogLevels(Map<String, LogLevel> logLevels) { |
| _lock.lock(); |
| try { |
| _levels = new HashMap<>(logLevels); |
| _loggerAdminImpl.keepLoggerContext(_name, this); |
| } |
| finally { |
| _lock.unlock(); |
| } |
| } |
| |
| public void clear() { |
| _lock.lock(); |
| try { |
| _levels = null; |
| } |
| finally { |
| _lock.unlock(); |
| } |
| } |
| |
| public boolean isEmpty() { |
| _lock.lock(); |
| try { |
| return _levels == null || _levels.isEmpty(); |
| } |
| finally { |
| _lock.unlock(); |
| } |
| } |
| |
| void updateLoggerContext(Dictionary<String, Object> properties) { |
| _lock.lock(); |
| try { |
| _levels = new HashMap<>(); |
| if (properties != null) { |
| for (Enumeration<String> enu = properties.keys(); enu.hasMoreElements();) { |
| String key = enu.nextElement(); |
| Object object = properties.get(key); |
| if (object instanceof String) { |
| String value = (String)object; |
| for (LogLevel level : LogLevel.values()) { |
| if (level.name().equalsIgnoreCase(value)) { |
| _levels.put(key, level); |
| break; |
| } |
| } |
| } |
| } |
| } |
| _loggerAdminImpl.keepLoggerContext(_name, this); |
| } |
| finally { |
| _lock.unlock(); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| if (_toString == null) { |
| _toString = getClass().getSimpleName() + "[" + _name + "]"; |
| } |
| return _toString; |
| } |
| |
| protected String ancestor(String name) { |
| int position = name.lastIndexOf('.'); |
| if (position == -1) { |
| return ROOT; |
| } |
| return name.substring(0, position); |
| } |
| |
| } |