| /* |
| * 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.sling.commons.log.logback.internal; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import ch.qos.logback.classic.Logger; |
| import ch.qos.logback.core.joran.action.Action; |
| import ch.qos.logback.core.joran.action.ActionConst; |
| import ch.qos.logback.core.joran.spi.ActionException; |
| import ch.qos.logback.core.joran.spi.InterpretationContext; |
| import ch.qos.logback.core.util.OptionHelper; |
| import org.xml.sax.Attributes; |
| |
| /** |
| * Joran action enabling referring to OSGi based appenders from within Logback config file. It is based on |
| * {@link ch.qos.logback.core.joran.action.AppenderRefAction}. |
| */ |
| public class OsgiAppenderRefInternalAction extends Action { |
| static String OSGI_APPENDER_REF_BAG = "OSGI_APPENDER_BAG"; |
| |
| boolean inError = false; |
| |
| @Override |
| public void begin(InterpretationContext ec, String tagName, Attributes attributes) throws ActionException { |
| // Let us forget about previous errors (in this object) |
| inError = false; |
| |
| Object o = ec.peekObject(); |
| |
| if (!(o instanceof Logger)) { |
| String errMsg = "Could not find an Logger at the top of execution stack. Near [" |
| + tagName + "] line " + getLineNumber(ec); |
| inError = true; |
| addError(errMsg); |
| return; |
| } |
| |
| Logger logger = (Logger) o; |
| |
| String appenderName = ec.subst(attributes.getValue(ActionConst.REF_ATTRIBUTE)); |
| |
| if (OptionHelper.isEmpty(appenderName)) { |
| // print a meaningful error message and return |
| String errMsg = "Missing appender ref attribute in <appender-ref> tag."; |
| inError = true; |
| addError(errMsg); |
| |
| return; |
| } |
| |
| @SuppressWarnings("unchecked") |
| Map<String, Set<String>> appenderBag = |
| (Map<String, Set<String>>) ec.getObjectMap().get(OSGI_APPENDER_REF_BAG); |
| |
| if(appenderBag == null){ |
| appenderBag = new HashMap<String, Set<String>>(); |
| ec.getObjectMap().put(OSGI_APPENDER_REF_BAG,appenderBag); |
| } |
| |
| Set<String> loggers = appenderBag.get(appenderName); |
| if(loggers == null){ |
| loggers = new HashSet<String>(); |
| appenderBag.put(appenderName,loggers); |
| } |
| |
| loggers.add(logger.getName()); |
| } |
| |
| @Override |
| public void end(InterpretationContext ic, String name) throws ActionException { |
| |
| } |
| } |