-
Notifications
You must be signed in to change notification settings - Fork 215
/
PayloadMapperProvider.java
88 lines (71 loc) · 3.37 KB
/
PayloadMapperProvider.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
/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.connectivity.service.mapping;
import static org.eclipse.ditto.base.model.common.ConditionChecker.checkNotNull;
import java.util.Set;
import java.util.stream.Collectors;
import org.eclipse.ditto.internal.utils.extension.DittoExtensionIds;
import org.eclipse.ditto.internal.utils.extension.DittoExtensionPoint;
import akka.actor.ActorSystem;
import com.typesafe.config.Config;
/**
* Extension to provide all configured {@link PayloadMapperFactory} implementations.
*/
public final class PayloadMapperProvider implements DittoExtensionPoint {
private static final String PAYLOAD_MAPPERS = "payload-mappers";
private final Set<PayloadMapperFactory> payloadMapperFactories;
@SuppressWarnings("unused")
private PayloadMapperProvider(final ActorSystem actorSystem, final Config config) {
final DittoExtensionIds dittoExtensionIds = DittoExtensionIds.get(actorSystem);
payloadMapperFactories = config.getList(PAYLOAD_MAPPERS)
.stream()
.map(configValue -> DittoExtensionPoint.ExtensionId.ExtensionIdConfig.of(PayloadMapperFactory.class, configValue))
.map(extensionIdConfig -> dittoExtensionIds.computeIfAbsent(extensionIdConfig,
PayloadMapperFactory.ExtensionId::new))
.map(extensionId -> extensionId.get(actorSystem))
.collect(Collectors.toSet());
}
public Set<PayloadMapperFactory> getPayloadMapperFactories() {
return payloadMapperFactories;
}
/**
* Loads the implementation of {@code PayloadMapperProvider} which is configured for the
* {@code ActorSystem}.
*
* @param actorSystem the actorSystem in which the {@code PayloadMapperProvider} should be loaded.
* @param config the configuration for this extension.
* @return the {@code PayloadMapperProvider} implementation.
* @throws NullPointerException if {@code actorSystem} is {@code null}.
*/
public static PayloadMapperProvider get(final ActorSystem actorSystem, final Config config) {
checkNotNull(actorSystem, "actorSystem");
checkNotNull(config, "config");
final var extensionIdConfig = ExtensionId.computeConfig(config);
return DittoExtensionIds.get(actorSystem)
.computeIfAbsent(extensionIdConfig, ExtensionId::new)
.get(actorSystem);
}
private static final class ExtensionId extends DittoExtensionPoint.ExtensionId<PayloadMapperProvider> {
private static final String CONFIG_KEY = "payload-mapper-provider";
private ExtensionId(final ExtensionIdConfig<PayloadMapperProvider> extensionIdConfig) {
super(extensionIdConfig);
}
static ExtensionIdConfig<PayloadMapperProvider> computeConfig(final Config config) {
return ExtensionIdConfig.of(PayloadMapperProvider.class, config, CONFIG_KEY);
}
@Override
protected String getConfigKey() {
return CONFIG_KEY;
}
}
}