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Posted to commits@camel.apache.org by ac...@apache.org on 2024/01/30 10:35:52 UTC
(camel-kamelets) 01/06: Support Kafka Batch as Kamelet source - Kafka Not Secured Source as batch
This is an automated email from the ASF dual-hosted git repository.
acosentino pushed a commit to branch kafka-batch-source
in repository https://gitbox.apache.org/repos/asf/camel-kamelets.git
commit cb254541492e8582d639df4732cf64e159ad6a82
Author: Andrea Cosentino <an...@gmail.com>
AuthorDate: Tue Jan 30 11:28:24 2024 +0100
Support Kafka Batch as Kamelet source - Kafka Not Secured Source as batch
Signed-off-by: Andrea Cosentino <an...@gmail.com>
---
.../kafka-batch-not-secured-source.kamelet.yaml | 129 +++++++++++++++++++++
.../utils/transform/kafka/BatchManualCommit.java | 42 +++++++
2 files changed, 171 insertions(+)
diff --git a/kamelets/kafka-batch-not-secured-source.kamelet.yaml b/kamelets/kafka-batch-not-secured-source.kamelet.yaml
new file mode 100644
index 00000000..14cb1040
--- /dev/null
+++ b/kamelets/kafka-batch-not-secured-source.kamelet.yaml
@@ -0,0 +1,129 @@
+# ---------------------------------------------------------------------------
+# 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.
+# ---------------------------------------------------------------------------
+apiVersion: camel.apache.org/v1
+kind: Kamelet
+metadata:
+ name: kafka-batch-not-secured-source
+ annotations:
+ camel.apache.org/kamelet.support.level: "Stable"
+ camel.apache.org/catalog.version: "4.4.0-SNAPSHOT"
+ camel.apache.org/kamelet.icon: "data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz4NCjwhLS0gR2VuZXJhdG9yOiBBZG9iZSBJbGx1c3RyYXRvciAxOS4wLjAsIFNWRyBFeHBvcnQgUGx1Zy1JbiAuIFNWRyBWZXJzaW9uOiA2LjAwIEJ1aWxkIDApICAtLT4NCjxzdmcgdmVyc2lvbj0iMS4xIiBpZD0iTGF5ZXJfMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB4bWxuczp4bGluaz0iaHR0cDovL3d3dy53My5vcmcvMTk5OS94bGluayIgeD0iMHB4IiB5PSIwcHgiDQoJIHZpZXdCb3g9IjAgMCA1MDAgNTAwIiBzdHlsZT0iZW5hYmxlLWJhY2tncm91bmQ6bmV3IDAgMCA1MD [...]
+ camel.apache.org/provider: "Apache Software Foundation"
+ camel.apache.org/kamelet.group: "Kafka"
+ camel.apache.org/kamelet.namespace: "Kafka"
+ camel.apache.org/keda.type: "kafka"
+ labels:
+ camel.apache.org/kamelet.type: "source"
+spec:
+ definition:
+ title: "Kafka Batch Not Secured Source"
+ description: |-
+ Receive data from Kafka topics in batch on an insecure broker and commit them manually through KafkaManualCommit.
+ required:
+ - topic
+ - bootstrapServers
+ type: object
+ properties:
+ topic:
+ title: Topic Names
+ description: Comma separated list of Kafka topic names
+ type: string
+ x-descriptors:
+ - urn:keda:metadata:topic
+ - urn:keda:required
+ bootstrapServers:
+ title: Bootstrap Servers
+ description: Comma separated list of Kafka Broker URLs
+ type: string
+ x-descriptors:
+ - urn:keda:metadata:bootstrapServers
+ - urn:keda:required
+ autoCommitEnable:
+ title: Auto Commit Enable
+ description: If true, periodically commit to ZooKeeper the offset of messages already fetched by the consumer
+ type: boolean
+ default: true
+ allowManualCommit:
+ title: Allow Manual Commit
+ description: Whether to allow doing manual commits
+ type: boolean
+ default: false
+ pollOnError:
+ title: Poll On Error Behavior
+ description: What to do if kafka threw an exception while polling for new messages. There are 5 enums and the value can be one of DISCARD, ERROR_HANDLER, RECONNECT, RETRY, STOP
+ type: string
+ default: "ERROR_HANDLER"
+ autoOffsetReset:
+ title: Auto Offset Reset
+ description: What to do when there is no initial offset. There are 3 enums and the value can be one of latest, earliest, none
+ type: string
+ default: "latest"
+ x-descriptors:
+ - urn:keda:metadata:offsetResetPolicy
+ consumerGroup:
+ title: Consumer Group
+ description: A string that uniquely identifies the group of consumers to which this source belongs
+ type: string
+ example: "my-group-id"
+ x-descriptors:
+ - urn:keda:metadata:consumerGroup
+ - urn:keda:required
+ deserializeHeaders:
+ title: Automatically Deserialize Headers
+ description: When enabled the Kamelet source will deserialize all message headers to String representation.
+ type: boolean
+ default: true
+ batchSize:
+ title: The batch dimension
+ description: The maximum number of records returned in a single call to poll()
+ type: int
+ default: 500
+ pollTimeout:
+ title: The poll timeout interval
+ description: The timeout used when polling the KafkaConsumer
+ type: int
+ default: 5000
+ dependencies:
+ - "mvn:org.apache.camel.kamelets:camel-kamelets-utils:4.4.0-SNAPSHOT"
+ - "camel:kafka"
+ - "camel:core"
+ - "camel:kamelet"
+ template:
+ beans:
+ - name: kafkaHeaderDeserializer
+ type: "#class:org.apache.camel.kamelets.utils.serialization.kafka.KafkaHeaderDeserializer"
+ properties:
+ enabled: '{{deserializeHeaders}}'
+ - name: manualCommitFactory
+ type: "#class:org.apache.camel.component.kafka.consumer.DefaultKafkaManualCommitFactory"
+ from:
+ uri: "kafka:{{topic}}"
+ parameters:
+ brokers: "{{bootstrapServers}}"
+ autoCommitEnable: "{{autoCommitEnable}}"
+ allowManualCommit: "{{allowManualCommit}}"
+ pollOnError: "{{pollOnError}}"
+ autoOffsetReset: "{{autoOffsetReset}}"
+ groupId: "{{?consumerGroup}}"
+ maxPollRecords: "{{batchSize}}"
+ pollTimeoutMs: "{{pollTimeout}}"
+ batching: true
+ kafkaManualCommitFactory: "#bean:{{manualCommitFactory}}"
+ steps:
+ - process:
+ ref: "{{kafkaHeaderDeserializer}}"
+ - to: "kamelet:sink"
diff --git a/library/camel-kamelets-utils/src/main/java/org/apache/camel/kamelets/utils/transform/kafka/BatchManualCommit.java b/library/camel-kamelets-utils/src/main/java/org/apache/camel/kamelets/utils/transform/kafka/BatchManualCommit.java
new file mode 100644
index 00000000..f6d7d841
--- /dev/null
+++ b/library/camel-kamelets-utils/src/main/java/org/apache/camel/kamelets/utils/transform/kafka/BatchManualCommit.java
@@ -0,0 +1,42 @@
+/*
+ * 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.kamelets.utils.transform.kafka;
+
+import org.apache.camel.Exchange;
+import org.apache.camel.Processor;
+import org.apache.camel.component.kafka.KafkaConstants;
+import org.apache.camel.component.kafka.consumer.KafkaManualCommit;
+
+import java.util.List;
+
+public class BatchManualCommit implements Processor {
+
+ @Override
+ public void process(Exchange exchange) throws Exception {
+ List<?> exchanges = exchange.getMessage().getBody(List.class);
+ if (exchanges.size() > 0) {
+ final Object tmp = exchanges.get(exchanges.size() - 1);
+ if (tmp instanceof Exchange element) {
+ KafkaManualCommit manual
+ = element.getMessage().getHeader(KafkaConstants.MANUAL_COMMIT, KafkaManualCommit.class);
+ if (manual != null) {
+ manual.commit();
+ }
+ }
+ }
+ }
+}