1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.syncope.core.logic.audit;
20
21 import java.util.Optional;
22 import org.apache.logging.log4j.Level;
23 import org.apache.logging.log4j.LogManager;
24 import org.apache.logging.log4j.core.LoggerContext;
25 import org.apache.logging.log4j.core.appender.rewrite.RewriteAppender;
26 import org.apache.logging.log4j.core.appender.rewrite.RewritePolicy;
27 import org.apache.logging.log4j.core.config.AppenderRef;
28
29 /**
30 * Default (abstract) implementation of rewrite audit appender, allowing the logging event to be manipulated
31 * before it is processed.
32 * It provides rewrite appender definition and a default "pass-through" policy.
33 * It is bound to an empty collection of events, i.e. it does not create any logger.
34 * This class shall be extended by rewrite appenders; for non-rewrite, extend {@link DefaultAuditAppender} instead.
35 *
36 * @see RewriteAppender
37 */
38 public abstract class DefaultRewriteAuditAppender extends DefaultAuditAppender {
39
40 protected RewriteAppender rewriteAppender;
41
42 public DefaultRewriteAuditAppender(final String domain) {
43 super(domain);
44
45 rewriteAppender = RewriteAppender.createAppender(
46 getTargetAppenderName() + "_rewrite",
47 "true",
48 new AppenderRef[] { AppenderRef.createAppenderRef(getTargetAppenderName(), Level.DEBUG, null) },
49 ((LoggerContext) LogManager.getContext(false)).getConfiguration(), getRewritePolicy(), null);
50 }
51
52 protected RewritePolicy getRewritePolicy() {
53 return PassThroughAuditRewritePolicy.createPolicy();
54 }
55
56 @Override
57 public Optional<RewriteAppender> getRewriteAppender() {
58 return Optional.of(rewriteAppender);
59 }
60 }