[camel-kafka-connector] 01/03: Slack Connector: Add the slack transformer from itest to the slack connector ootb

[ac...@apache.org]

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acosentino pushed a commit to branch slack-transf
in repository https://gitbox.apache.org/repos/asf/camel-kafka-connector.git

commit 2e1b0aa3b3e93b354d7296365bd97b3311f12766
Author: Andrea Cosentino <an...@gmail.com>
AuthorDate: Wed Oct 14 14:54:17 2020 +0200

    Slack Connector: Add the slack transformer from itest to the slack connector ootb
---
 .../slack/transformers/SlackTransforms.java        | 72 ++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/connectors/camel-slack-kafka-connector/src/main/java/org/apache/camel/kafkaconnector/slack/transformers/SlackTransforms.java b/connectors/camel-slack-kafka-connector/src/main/java/org/apache/camel/kafkaconnector/slack/transformers/SlackTransforms.java
new file mode 100644
index 0000000..a0de8d2
--- /dev/null
+++ b/connectors/camel-slack-kafka-connector/src/main/java/org/apache/camel/kafkaconnector/slack/transformers/SlackTransforms.java
@@ -0,0 +1,72 @@
+/*
+ * 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.kafkaconnector.slack.transformers;
+
+import java.util.Map;
+
+import org.apache.camel.component.slack.helper.SlackMessage;
+import org.apache.camel.kafkaconnector.utils.SchemaHelper;
+import org.apache.kafka.common.config.ConfigDef;
+import org.apache.kafka.connect.connector.ConnectRecord;
+import org.apache.kafka.connect.transforms.Transformation;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SlackTransforms <R extends ConnectRecord<R>> implements Transformation<R> {
+    public static final String FIELD_KEY_CONFIG = "key";
+    public static final ConfigDef CONFIG_DEF = new ConfigDef()
+            .define(FIELD_KEY_CONFIG, ConfigDef.Type.STRING, null, ConfigDef.Importance.MEDIUM,
+                    "Transforms String-based content from Kafka into a map");
+
+    private static final Logger LOG = LoggerFactory.getLogger(SlackTransforms.class);
+
+    @Override
+    public R apply(R r) {
+        Object value = r.value();
+
+        if (r.value() instanceof SlackMessage) {
+            LOG.debug("Converting record from SlackMessage to text");
+            SlackMessage message = (SlackMessage) r.value();
+
+            LOG.debug("Received text: {}", message.getText());
+
+            return r.newRecord(r.topic(), r.kafkaPartition(), null, r.key(),
+                    SchemaHelper.buildSchemaBuilderForType(message.getText()), message.getText(), r.timestamp());
+
+        } else {
+            LOG.debug("Unexpected message type: {}", r.value().getClass());
+
+            return r;
+        }
+    }
+
+    @Override
+    public ConfigDef config() {
+        return CONFIG_DEF;
+    }
+
+    @Override
+    public void close() {
+
+    }
+
+    @Override
+    public void configure(Map<String, ?> map) {
+
+    }
+}