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.rest.cxf;
20
21 import org.apache.cxf.interceptor.Fault;
22 import org.apache.cxf.message.Exchange;
23 import org.apache.cxf.message.Message;
24 import org.apache.cxf.phase.AbstractPhaseInterceptor;
25 import org.apache.cxf.phase.Phase;
26 import org.apache.syncope.core.provisioning.api.job.JobDelegate;
27 import org.apache.syncope.core.spring.security.SecureRandomUtils;
28 import org.slf4j.MDC;
29
30 /**
31 * Populate MDC with sensible information, for the current thread.
32 *
33 * MDC is then cleared up by {@link org.apache.syncope.core.rest.cxf.ThreadLocalCleanupOutInterceptor}
34 */
35 public class MDCInInterceptor extends AbstractPhaseInterceptor<Message> {
36
37 // just same value as org.apache.cxf.ext.logging.event.LogEvent.KEY_EXCHANGE_ID
38 protected static final String KEY_EXCHANGE_ID = "exchangeId";
39
40 public MDCInInterceptor() {
41 super(Phase.PRE_INVOKE);
42 }
43
44 @Override
45 public void handleMessage(final Message message) throws Fault {
46 Exchange exchange = message.getExchange();
47
48 // this ensures we are not duplicating nor conflicting with
49 // org.apache.cxf.ext.logging.AbstractLoggingInterceptor.createExchangeId(Message)
50 String exchangeId = (String) exchange.get(KEY_EXCHANGE_ID);
51 if (exchangeId == null) {
52 exchangeId = SecureRandomUtils.generateRandomUUID().toString();
53 exchange.put(KEY_EXCHANGE_ID, exchangeId);
54 }
55
56 MDC.put(JobDelegate.OPERATION_ID, exchangeId);
57 }
58 }