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
90
|
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* Modifications Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.endpoints.utils;
import java.util.List;
import java.util.Properties;
import org.onap.policy.common.endpoints.parameters.TopicParameterGroup;
import org.onap.policy.common.endpoints.parameters.TopicParameters;
import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
/**
* This is common utility class with utility methods for parameters.
*
* @author Ajith Sreekumar (ajith.sreekumar@est.tech)
*/
public class ParameterUtils {
/**
* Private constructor used to prevent sub class instantiation.
*/
private ParameterUtils() {
// Prevent construction of this class
}
/**
* Create topic properties object from the parameters.
*
* @param topicParameters the topic parameters read from config file
* @return the topic properties object
*/
public static Properties getTopicProperties(TopicParameterGroup topicParameters) {
Properties topicProperties = new Properties();
List<TopicParameters> topicSources = topicParameters.getTopicSources();
List<TopicParameters> topicSinks = topicParameters.getTopicSinks();
// for each topicCommInfrastructure, there could be multiple topics (specified as comma separated string)
// for each such topics, there could be multiple servers (specified as comma separated string)
for (TopicParameters source : topicSources) {
updateTopicProperties(topicProperties, "source", source.getTopicCommInfrastructure(), source.getTopic(),
source.getServers());
}
for (TopicParameters sink : topicSinks) {
updateTopicProperties(topicProperties, "sink", sink.getTopicCommInfrastructure(), sink.getTopic(),
sink.getServers());
}
return topicProperties;
}
/**
* Common method to update topic properties object using the parameters passed.
*
* @param topicProperties the topic properties object which is to be updated
* @param keyName either it is source or sink
* @param topicCommInfra the infra such as dmaap, ueb or noop
* @param topicName the topic
* @param servers the list of server names for the topic
*/
public static void updateTopicProperties(Properties topicProperties, String keyName, String topicCommInfra,
String topicName, List<String> servers) {
String propKey = topicCommInfra + "." + keyName + PolicyEndPointProperties.PROPERTY_TOPIC_TOPICS_SUFFIX;
if (topicProperties.containsKey(propKey)) {
topicProperties.setProperty(propKey, topicProperties.getProperty(propKey) + "," + topicName);
} else {
topicProperties.setProperty(propKey, topicName);
}
topicProperties.setProperty(propKey + "." + topicName + PolicyEndPointProperties.PROPERTY_TOPIC_SERVERS_SUFFIX,
String.join(",", servers));
}
}
|
