-
Notifications
You must be signed in to change notification settings - Fork 4.9k
/
KinesisDefaultResumeAdapter.java
103 lines (81 loc) · 3.38 KB
/
KinesisDefaultResumeAdapter.java
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
91
92
93
94
95
96
97
98
99
100
101
102
103
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.camel.component.aws2.kinesis.consumer;
import java.nio.ByteBuffer;
import org.apache.camel.resume.Cacheable;
import org.apache.camel.resume.Deserializable;
import org.apache.camel.resume.Offset;
import org.apache.camel.resume.OffsetKey;
import org.apache.camel.resume.ResumeAdapter;
import org.apache.camel.resume.cache.ResumeCache;
import org.apache.camel.spi.annotations.JdkService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import software.amazon.awssdk.services.kinesis.model.GetShardIteratorRequest;
import software.amazon.awssdk.services.kinesis.model.ShardIteratorType;
@JdkService(ResumeAdapter.RESUME_ADAPTER_FACTORY)
public class KinesisDefaultResumeAdapter implements KinesisResumeAdapter, Cacheable, Deserializable {
private static final Logger LOG = LoggerFactory.getLogger(KinesisDefaultResumeAdapter.class);
private ResumeCache<String> cache;
private GetShardIteratorRequest.Builder resumable;
private String streamName;
public void setRequestBuilder(GetShardIteratorRequest.Builder resumable) {
this.resumable = resumable;
}
@Override
public void resume() {
assert streamName != null;
assert resumable != null;
KinesisOffset offset = cache.get(streamName, KinesisOffset.class);
if (offset == null) {
LOG.info("There is no offset for the stream {}", streamName);
return;
}
final String sequenceNumber = offset.getValue();
LOG.info("Resuming from offset {} for key {}", sequenceNumber, streamName);
resumable.shardIteratorType(ShardIteratorType.AFTER_SEQUENCE_NUMBER);
resumable.startingSequenceNumber(sequenceNumber);
}
private void add(Object key, Object offset) {
KinesisOffset ko = (KinesisOffset) cache.computeIfAbsent((String) key, k -> new KinesisOffset());
ko.update((String) offset);
}
@Override
public boolean add(OffsetKey<?> key, Offset<?> offset) {
add(key.getValue(), offset.getValue());
return true;
}
@Override
public void setCache(ResumeCache<?> cache) {
this.cache = (ResumeCache<String>) cache;
}
@Override
public ResumeCache<?> getCache() {
return cache;
}
@Override
public boolean deserialize(ByteBuffer keyBuffer, ByteBuffer valueBuffer) {
Object keyObj = deserializeObject(keyBuffer);
Object valueObj = deserializeObject(valueBuffer);
add(keyObj, valueObj);
return true;
}
@Override
public void setStreamName(String streamName) {
this.streamName = streamName;
}
}