[
https://issues.apache.org/jira/browse/APEXMALHAR-2106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15341482#comment-15341482
]
ASF GitHub Bot commented on APEXMALHAR-2106:
--------------------------------------------
Github user bhupeshchawda commented on a diff in the pull request:
https://github.com/apache/apex-malhar/pull/309#discussion_r67840942
--- Diff:
library/src/main/java/com/datatorrent/lib/stream/MultipleStreamMerger.java ---
@@ -0,0 +1,215 @@
+/**
+ * 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 com.datatorrent.lib.stream;
+
+import java.util.ArrayList;
+import java.util.Queue;
+
+import org.eclipse.jetty.util.ArrayQueue;
+
+import org.apache.hadoop.conf.Configuration;
+
+import com.datatorrent.api.DAG;
+import com.datatorrent.api.DefaultInputPort;
+import com.datatorrent.api.DefaultOutputPort;
+
+/**
+ * A helper class that adds functionality to bypass the platform
limitations of combining more than two
--- End diff --
Not really the limitation of the platform. May be limitation of the
existing StreamMerger?
> Support merging multiple streams with StreamMerger
> ---------------------------------------------------
>
> Key: APEXMALHAR-2106
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2106
> Project: Apache Apex Malhar
> Issue Type: New Feature
> Reporter: Ilya Ganelin
> Assignee: Ilya Ganelin
>
> To properly implement the Flatten transformation (and other Stream
> combination operations), Apex must support merging data from multiple
> sources. The StreamMerger operator can be improved to merge multiple streams,
> rather than just the two streams it can handle in the present implementation.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
