Github user chinmaykolhatkar commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/133#discussion_r49067569
--- Diff:
contrib/src/main/java/com/datatorrent/contrib/nifi/AbstractNiFiOutputOperator.java
---
@@ -0,0 +1,118 @@
+/**
+ * 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.contrib.nifi;
+
+import java.io.IOException;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.apache.nifi.remote.Transaction;
+import org.apache.nifi.remote.TransferDirection;
+import org.apache.nifi.remote.client.SiteToSiteClient;
+
+import com.datatorrent.api.Context;
+import com.datatorrent.common.util.BaseOperator;
+import com.datatorrent.netlet.util.DTThrowable;
+
+/**
+ * This is the base implementation of a NiFi output operator.
+ * A concrete operator should be created from this skeleton implementation.
+ * <p>
+ * <br>
+ * Ports:<br>
+ * <b>Input</b>: Can have any number of input ports<br>
+ * <b>Output</b>: no output port<br>
+ * <br>
+ * Properties:<br>
+ * None<br>
+ * <br>
+ * Compile time checks:<br>
+ * None<br>
+ * <br>
+ * Run time checks:<br>
+ * None<br>
+ * <br>
+ * Benchmarks:<br>
+ * TBD<br>
+ * <br>
+ * </p>
+ *
+ * @displayName Abstract NiFi Output
+ * @category Messaging
+ * @tags output operator
+ *
+ * @since 3.3.0
+ *
+ */
+public abstract class AbstractNiFiOutputOperator<T> extends BaseOperator
+{
+
+ private static final Logger LOGGER =
LoggerFactory.getLogger(AbstractNiFiOutputOperator.class);
+
+ protected SiteToSiteClient client;
--- End diff --
Can you please make this transient as this gets initialized in setup.
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