-
Notifications
You must be signed in to change notification settings - Fork 214
/
SubscribeSuccess.java
95 lines (79 loc) · 3.23 KB
/
SubscribeSuccess.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
/*
* 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.messaging.mqtt.hivemq.subscribing;
import java.util.Objects;
import javax.annotation.Nullable;
import org.eclipse.ditto.base.model.common.ConditionChecker;
import org.eclipse.ditto.connectivity.service.messaging.mqtt.hivemq.client.MqttSubscribeException;
import org.eclipse.ditto.connectivity.service.messaging.mqtt.hivemq.message.publish.GenericMqttPublish;
import org.eclipse.ditto.connectivity.service.messaging.mqtt.hivemq.message.subscribe.GenericMqttSubscribe;
import org.apache.pekko.NotUsed;
import org.apache.pekko.stream.javadsl.Source;
/**
* Represents the successful subscription of an MQTT client to one or more
* MQTT topics via one particular Subscribe message ({@link GenericMqttSubscribe}).
*/
final class SubscribeSuccess extends SubscribeResult {
private final Source<GenericMqttPublish, NotUsed> mqttPublishSource;
private SubscribeSuccess(final org.eclipse.ditto.connectivity.model.Source connectionSource,
final Source<GenericMqttPublish, NotUsed> mqttPublishSource) {
super(connectionSource);
this.mqttPublishSource = mqttPublishSource;
}
/**
* Returns a new instance of {@code SubscribeSuccess} for the specified arguments.
*
* @param connectionSource the connection source which is associated with the returned subscribe success.
* @param mqttPublishSource stream of received MQTT Publish messages for the subscribed topics.
* @return the instance.
* @throws NullPointerException if any argument is {@code null}.
*/
static SubscribeSuccess newInstance(final org.eclipse.ditto.connectivity.model.Source connectionSource,
final Source<GenericMqttPublish, NotUsed> mqttPublishSource) {
return new SubscribeSuccess(connectionSource,
ConditionChecker.checkNotNull(mqttPublishSource, "mqttPublishSource"));
}
@Override
public boolean isSuccess() {
return true;
}
@Override
public org.apache.pekko.stream.javadsl.Source<GenericMqttPublish, NotUsed> getMqttPublishSourceOrThrow() {
return mqttPublishSource;
}
/**
* Throws always an IllegalStateException.
*/
@Override
public MqttSubscribeException getErrorOrThrow() {
throw new IllegalStateException("Success cannot provide an error.");
}
@Override
public boolean equals(@Nullable final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
if (!super.equals(o)) {
return false;
}
final var that = (SubscribeSuccess) o;
return Objects.equals(mqttPublishSource, that.mqttPublishSource);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), mqttPublishSource);
}
}