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Add detection of non-compacted session topic (#1044)
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74 changes: 74 additions & 0 deletions
74
...ain/java/io/aklivity/zilla/runtime/binding/mqtt/kafka/internal/MqttKafkaEventContext.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| /* | ||
| * Copyright 2021-2023 Aklivity Inc | ||
| * | ||
| * Licensed under the Aklivity Community License (the "License"); you may not use | ||
| * this file except in compliance with the License. You may obtain a copy of the | ||
| * License at | ||
| * | ||
| * https://www.aklivity.io/aklivity-community-license/ | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| */ | ||
| package io.aklivity.zilla.runtime.binding.mqtt.kafka.internal; | ||
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| import static io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.event.MqttKafkaEventType.NON_COMPACT_SESSIONS_TOPIC; | ||
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| import java.nio.ByteBuffer; | ||
| import java.time.Clock; | ||
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| import org.agrona.concurrent.AtomicBuffer; | ||
| import org.agrona.concurrent.UnsafeBuffer; | ||
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| import io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.String16FW; | ||
| import io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.event.EventFW; | ||
| import io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.event.MqttKafkaEventExFW; | ||
| import io.aklivity.zilla.runtime.engine.EngineContext; | ||
| import io.aklivity.zilla.runtime.engine.binding.function.MessageConsumer; | ||
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| public class MqttKafkaEventContext | ||
| { | ||
| private static final int EVENT_BUFFER_CAPACITY = 2048; | ||
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| private final AtomicBuffer eventBuffer = new UnsafeBuffer(ByteBuffer.allocate(EVENT_BUFFER_CAPACITY)); | ||
| private final AtomicBuffer extensionBuffer = new UnsafeBuffer(ByteBuffer.allocate(EVENT_BUFFER_CAPACITY)); | ||
| private final EventFW.Builder eventRW = new EventFW.Builder(); | ||
| private final MqttKafkaEventExFW.Builder mqttKafkaEventExRW = new MqttKafkaEventExFW.Builder(); | ||
| private final int mqttTypeId; | ||
| private final int nonCompactSessionsTopicEventId; | ||
| private final MessageConsumer eventWriter; | ||
| private final Clock clock; | ||
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| public MqttKafkaEventContext( | ||
| EngineContext context) | ||
| { | ||
| this.mqttTypeId = context.supplyTypeId(MqttKafkaBinding.NAME); | ||
| this.nonCompactSessionsTopicEventId = context.supplyEventId("binding.mqtt.kafka.non.compact.sessions.topic"); | ||
| this.eventWriter = context.supplyEventWriter(); | ||
| this.clock = context.clock(); | ||
| } | ||
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| public void onMqttConnectionReset( | ||
| long traceId, | ||
| long bindingId, | ||
| String16FW reason) | ||
| { | ||
| MqttKafkaEventExFW extension = mqttKafkaEventExRW | ||
| .wrap(extensionBuffer, 0, extensionBuffer.capacity()) | ||
| .nonCompactSessionsTopic(e -> e | ||
| .typeId(NON_COMPACT_SESSIONS_TOPIC.value()) | ||
| .reason(reason)) | ||
| .build(); | ||
| EventFW event = eventRW | ||
| .wrap(eventBuffer, 0, eventBuffer.capacity()) | ||
| .id(nonCompactSessionsTopicEventId) | ||
| .timestamp(clock.millis()) | ||
| .traceId(traceId) | ||
| .namespacedId(bindingId) | ||
| .extension(extension.buffer(), extension.offset(), extension.limit()) | ||
| .build(); | ||
| eventWriter.accept(mqttTypeId, event.buffer(), event.offset(), event.limit()); | ||
| } | ||
| } |
65 changes: 65 additions & 0 deletions
65
...n/java/io/aklivity/zilla/runtime/binding/mqtt/kafka/internal/MqttKafkaEventFormatter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /* | ||
| * Copyright 2021-2023 Aklivity Inc | ||
| * | ||
| * Licensed under the Aklivity Community License (the "License"); you may not use | ||
| * this file except in compliance with the License. You may obtain a copy of the | ||
| * License at | ||
| * | ||
| * https://www.aklivity.io/aklivity-community-license/ | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| */ | ||
| package io.aklivity.zilla.runtime.binding.mqtt.kafka.internal; | ||
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| import org.agrona.DirectBuffer; | ||
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| import io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.String16FW; | ||
| import io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.event.EventFW; | ||
| import io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.event.MqttKafkaEventExFW; | ||
| import io.aklivity.zilla.runtime.binding.mqtt.kafka.internal.types.event.MqttKafkaResetMqttConnectionExFW; | ||
| import io.aklivity.zilla.runtime.engine.Configuration; | ||
| import io.aklivity.zilla.runtime.engine.event.EventFormatterSpi; | ||
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| public final class MqttKafkaEventFormatter implements EventFormatterSpi | ||
| { | ||
| private static final String NON_COMPACT_SESSIONS_TOPIC_FORMAT = "NON COMPACT SESSIONS TOPIC - %s"; | ||
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| private final EventFW eventRO = new EventFW(); | ||
| private final MqttKafkaEventExFW mqttKafkaEventExRO = new MqttKafkaEventExFW(); | ||
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| MqttKafkaEventFormatter( | ||
| Configuration config) | ||
| { | ||
| } | ||
|
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| public String format( | ||
| DirectBuffer buffer, | ||
| int index, | ||
| int length) | ||
| { | ||
| final EventFW event = eventRO.wrap(buffer, index, index + length); | ||
| final MqttKafkaEventExFW extension = mqttKafkaEventExRO | ||
| .wrap(event.extension().buffer(), event.extension().offset(), event.extension().limit()); | ||
| String result = null; | ||
| switch (extension.kind()) | ||
| { | ||
| case NON_COMPACT_SESSIONS_TOPIC: | ||
| { | ||
| MqttKafkaResetMqttConnectionExFW ex = extension.nonCompactSessionsTopic(); | ||
| result = String.format(NON_COMPACT_SESSIONS_TOPIC_FORMAT, asString(ex.reason())); | ||
| break; | ||
| } | ||
| } | ||
| return result; | ||
| } | ||
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| private static String asString( | ||
| String16FW stringFW) | ||
| { | ||
| String s = stringFW.asString(); | ||
| return s == null ? "" : s; | ||
| } | ||
| } |
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