| /* |
| * 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.karaf.shell.log; |
| |
| import java.io.IOException; |
| import java.util.Dictionary; |
| |
| import org.apache.karaf.shell.console.OsgiCommandSupport; |
| import org.apache.felix.gogo.commands.Argument; |
| import org.apache.felix.gogo.commands.Command; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.cm.Configuration; |
| import org.osgi.service.cm.ConfigurationAdmin; |
| |
| /** |
| * Set the log level for a given logger |
| */ |
| @Command(scope = "log", name = "set", description = "Sets the log level.") |
| public class SetLogLevel extends OsgiCommandSupport { |
| |
| @Argument(index = 0, name = "level", description = "The log level to set (TRACE, DEBUG, INFO, WARN, ERROR) or DEFAULT to unset", required = true, multiValued = false) |
| String level; |
| |
| @Argument(index = 1, name = "logger", description = "Logger name or ROOT (default)", required = false, multiValued = false) |
| String logger; |
| |
| static final String CONFIGURATION_PID = "org.ops4j.pax.logging"; |
| static final String ROOT_LOGGER_PREFIX = "log4j.rootLogger"; |
| static final String LOGGER_PREFIX = "log4j.logger."; |
| static final String ROOT_LOGGER = "ROOT"; |
| |
| protected Object doExecute() throws Exception { |
| if (ROOT_LOGGER.equalsIgnoreCase(this.logger)) { |
| this.logger = null; |
| } |
| |
| // make sure both uppercase and lowercase levels are supported |
| level = level.toUpperCase(); |
| |
| try { |
| Level.valueOf(level); |
| } catch (IllegalArgumentException e) { |
| System.err.println("level must be set to TRACE, DEBUG, INFO, WARN or ERROR (or DEFAULT to unset it)"); |
| return null; |
| } |
| |
| if (Level.isDefault(level) && logger == null) { |
| System.err.println("Can not unset the ROOT logger"); |
| return null; |
| } |
| |
| Configuration cfg = getConfiguration(); |
| Dictionary props = cfg.getProperties(); |
| |
| String logger = this.logger; |
| String val; |
| String prop; |
| if (logger == null) { |
| prop = ROOT_LOGGER_PREFIX; |
| } else { |
| prop = LOGGER_PREFIX + logger; |
| } |
| val = (String) props.get(prop); |
| if (Level.isDefault(level)) { |
| if (val != null) { |
| val = val.trim(); |
| int idx = val.indexOf(","); |
| if (idx < 0) { |
| val = null; |
| } else { |
| val = val.substring(idx); |
| } |
| } |
| } else { |
| if (val == null) { |
| val = level; |
| } else { |
| val = val.trim(); |
| int idx = val.indexOf(","); |
| if (idx < 0) { |
| val = level; |
| } else { |
| val = level + val.substring(idx); |
| } |
| } |
| } |
| if (val == null) { |
| props.remove(prop); |
| } else { |
| props.put(prop, val); |
| } |
| cfg.update(props); |
| |
| return null; |
| } |
| |
| |
| |
| protected Configuration getConfiguration() throws IOException { |
| Configuration cfg = getConfigAdmin().getConfiguration(CONFIGURATION_PID, null); |
| return cfg; |
| } |
| |
| protected ConfigurationAdmin getConfigAdmin() { |
| ServiceReference ref = getBundleContext().getServiceReference(ConfigurationAdmin.class.getName()); |
| return getService(ConfigurationAdmin.class, ref); |
| } |
| |
| } |