blob: 85e4a74e50bd8b3ffc627dd11cf13670a60cc4b1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/**
* Copyright 2021 ZTE Corporation.
* <p>
* Licensed 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.onap.holmes.engine.dcae;
import org.onap.holmes.common.ConfigFileScanner;
import org.onap.holmes.common.dcae.DcaeConfigurationsCache;
import org.onap.holmes.common.dcae.entity.DcaeConfigurations;
import org.onap.holmes.common.dcae.utils.DcaeConfigurationParser;
import org.onap.holmes.common.exception.CorrelationException;
import org.onap.holmes.common.utils.Md5Util;
import org.onap.holmes.common.utils.SpringContextUtil;
import org.onap.holmes.dsa.dmaappolling.Subscriber;
import org.onap.holmes.engine.dmaap.SubscriberAction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.HashMap;
import java.util.Map;
public class ConfigFileScanningTask implements Runnable {
final public static long POLLING_PERIOD = 60L;
final private static Logger LOGGER = LoggerFactory.getLogger(ConfigFileScanningTask.class);
private String configFile = "/opt/hemtopics/cfy.json";
private ConfigFileScanner configFileScanner;
private String prevConfigMd5 = Md5Util.md5(new HashMap<String, String>());
public ConfigFileScanningTask(ConfigFileScanner configFileScanner) {
this.configFileScanner = configFileScanner;
}
@Override
public void run() {
if (null == configFileScanner) {
configFileScanner = new ConfigFileScanner();
}
Map<String, String> newConfig = configFileScanner.scan(configFile);
String md5 = Md5Util.md5(newConfig);
if (!prevConfigMd5.equals(md5)) {
LOGGER.info("Configurations have changed.");
prevConfigMd5 = md5;
} else {
return;
}
for (Map.Entry entry : newConfig.entrySet()) {
DcaeConfigurations dcaeConfigurations = null;
try {
dcaeConfigurations = DcaeConfigurationParser.parse(entry.getValue().toString());
if (dcaeConfigurations != null) {
DcaeConfigurationsCache.setDcaeConfigurations(dcaeConfigurations);
addSubscribers(dcaeConfigurations);
}
} catch (CorrelationException e) {
LOGGER.error(e.getMessage(), e);
// reset the value of the pre-md5 so that configs could be re-processed during the next scanning.
prevConfigMd5 = null;
} catch (Exception e) {
LOGGER.warn("Failed to deal with the new configurations.", e);
// reset the value of the pre-md5 so that configs could be re-processed during the next scanning.
prevConfigMd5 = null;
}
}
}
private void addSubscribers(DcaeConfigurations dcaeConfigurations) {
SubscriberAction subscriberAction = SpringContextUtil.getBean(SubscriberAction.class);
for (String key : dcaeConfigurations.getSubKeys()) {
Subscriber subscriber = new Subscriber();
subscriber.setTopic(key);
subscriber.setUrl(dcaeConfigurations.getSubSecInfo(key).getDmaapInfo()
.getTopicUrl());
subscriberAction.addSubscriber(subscriber);
}
}
}
|
