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
|
/*
* Copyright © 2019 IBM.
* Modifications Copyright © 2018-2019 AT&T Intellectual Property.
*
* 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.
*/
package org.onap.ccsdk.cds.blueprintsprocessor.message.service
import kotlinx.coroutines.channels.Channel
import org.apache.kafka.clients.consumer.Consumer
import org.apache.kafka.clients.consumer.ConsumerRecord
import org.apache.kafka.clients.consumer.ConsumerRecords
import org.apache.kafka.streams.Topology
import org.onap.ccsdk.cds.blueprintsprocessor.message.MessageConsumerProperties
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintProcessorException
/** Consumer Function Interfaces */
interface ConsumerFunction
interface BlueprintMessageConsumerService {
suspend fun subscribe(): Channel<ConsumerRecord<String, ByteArray>> {
return subscribe(null)
}
/** Subscribe to the Kafka channel with [additionalConfig] */
suspend fun subscribe(additionalConfig: Map<String, Any>?): Channel<ConsumerRecord<String, ByteArray>>
/** Subscribe to the Kafka channel with [additionalConfig] for dynamic [topics]*/
suspend fun subscribe(topics: List<String>, additionalConfig: Map<String, Any>? = null): Channel<ConsumerRecord<String, ByteArray>>
/** Consume and execute dynamic function [consumerFunction] */
suspend fun consume(consumerFunction: ConsumerFunction) {
consume(null, consumerFunction)
}
/** Consume with [additionalConfig], so that we can execute dynamic function [consumerFunction] */
suspend fun consume(additionalConfig: Map<String, Any>?, consumerFunction: ConsumerFunction) {
throw BlueprintProcessorException("Not Implemented")
}
/** Consume the [topics] with [additionalConfig], so that we can execute dynamic function [consumerFunction] */
suspend fun consume(
topics: List<String>,
additionalConfig: Map<String, Any>?,
consumerFunction: ConsumerFunction
) {
throw BlueprintProcessorException("Not Implemented")
}
/** close the channel, consumer and other resources */
suspend fun shutDown()
}
/** Consumer dynamic implementation interface */
interface KafkaConsumerRecordsFunction : ConsumerFunction {
suspend fun invoke(
messageConsumerProperties: MessageConsumerProperties,
consumer: Consumer<*, *>,
consumerRecords: ConsumerRecords<*, *>
)
}
interface KafkaStreamConsumerFunction : ConsumerFunction {
suspend fun createTopology(
messageConsumerProperties: MessageConsumerProperties,
additionalConfig: Map<String, Any>?
): Topology
}
|
