[camel-kafka-connector] 01/04: Camel-AWS2-S3 connector: Add out of the box specific Aggregation Strategies, added NewlineAggregationStrategy

[acosentino]

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

commit 71c04c7b78988af3801e3c2a2d1db6948e58e468
Author: Andrea Cosentino <anco...@gmail.com>
AuthorDate: Mon Dec 14 11:12:57 2020 +0100

    Camel-AWS2-S3 connector: Add out of the box specific Aggregation 
Strategies, added NewlineAggregationStrategy
---
 .../aggregation/NewlineAggregationStrategy.java    | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git 
a/connectors/camel-aws2-s3-kafka-connector/src/main/java/org/apache/camel/kafkaconnector/aws2s3/aggregation/NewlineAggregationStrategy.java
 
b/connectors/camel-aws2-s3-kafka-connector/src/main/java/org/apache/camel/kafkaconnector/aws2s3/aggregation/NewlineAggregationStrategy.java
new file mode 100644
index 0000000..9c61218
--- /dev/null
+++ 
b/connectors/camel-aws2-s3-kafka-connector/src/main/java/org/apache/camel/kafkaconnector/aws2s3/aggregation/NewlineAggregationStrategy.java
@@ -0,0 +1,44 @@
+/*
+ * 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.aws2s3.aggregation;
+
+import org.apache.camel.AggregationStrategy;
+import org.apache.camel.Exchange;
+import org.apache.camel.Message;
+
+public class NewlineAggregationStrategy implements AggregationStrategy {
+
+    @Override
+    public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
+        // lets append the old body to the new body
+        if (oldExchange == null) {
+            return newExchange;
+        }
+
+        String body = oldExchange.getIn().getBody(String.class);
+        if (body != null) {
+            Message newIn = newExchange.getIn();
+            String newBody = newIn.getBody(String.class);
+            if (newBody != null) {
+                body += System.lineSeparator() + newBody;
+            }
+
+            newIn.setBody(body);
+        }
+        return newExchange;
+    }
+}