1 files changed, 82 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineKafkaTopicSink.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineKafkaTopicSink.java
new file mode 100644
index 00000000..6354f762
--- /dev/null
+++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/event/comm/bus/internal/InlineKafkaTopicSink.java
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+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022-2023 Nordix Foundation.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.endpoints.event.comm.bus.internal;
+
+import java.util.Map;
+import org.onap.policy.common.endpoints.event.comm.Topic;
+import org.onap.policy.common.endpoints.event.comm.bus.KafkaTopicSink;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This implementation publishes events for the associated KAFKA topic, inline with the calling
+ * thread.
+ */
+public class InlineKafkaTopicSink extends InlineBusTopicSink implements KafkaTopicSink {
+
+    /**
+     * Logger.
+     */
+    private static final Logger logger = LoggerFactory.getLogger(InlineKafkaTopicSink.class);
+
+    protected Map<String, String> additionalProps;
+
+    /**
+     * Argument-based KAFKA Topic Writer instantiation. BusTopicParams contains the below
+     * attributes.
+     *
+     * <p>servers              list of KAFKA servers available for publishing
+     * topic                the topic to publish to
+     * partitionId          the partition key (optional, autogenerated if not provided)
+     * useHttps             does connection use HTTPS?
+     * @param busTopicParams contains attributes needed
+     * @throws IllegalArgumentException if invalid arguments are detected
+     */
+    public InlineKafkaTopicSink(BusTopicParams busTopicParams) {
+        super(busTopicParams);
+        this.additionalProps = busTopicParams.getAdditionalProps();
+    }
+
+    /**
+     * Instantiation of internal resources.
+     */
+    @Override
+    public void init() {
+
+        this.publisher = new BusPublisher.KafkaPublisherWrapper(BusTopicParams.builder()
+                .servers(this.servers)
+                .topic(this.effectiveTopic)
+                .useHttps(this.useHttps)
+                .allowTracing(this.allowTracing)
+                .additionalProps(this.additionalProps)
+                .build());
+        logger.info("{}: KAFKA SINK created", this);
+    }
+
+    @Override
+    public String toString() {
+        return "InlineKafkaTopicSink [getTopicCommInfrastructure()=" + getTopicCommInfrastructure() + ", toString()="
+                        + super.toString() + "]";
+    }
+
+    @Override
+    public CommInfrastructure getTopicCommInfrastructure() {
+        return Topic.CommInfrastructure.KAFKA;
+    }
+}