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From GitBox <...@apache.org>
Subject [GitHub] srkukarni commented on a change in pull request #2409: Added HDFS Sink
Date Mon, 27 Aug 2018 17:57:44 GMT
srkukarni commented on a change in pull request #2409: Added HDFS Sink
URL: https://github.com/apache/incubator-pulsar/pull/2409#discussion_r213060424
 
 

 ##########
 File path: pulsar-io/hdfs/src/main/java/org/apache/pulsar/io/hdfs/AbstractHdfsConfig.java
 ##########
 @@ -0,0 +1,87 @@
+/**
+ * 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.pulsar.io.hdfs;
+
+import java.io.Serializable;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import lombok.experimental.Accessors;
+
+import org.apache.commons.lang.StringUtils;
+
+/**
+ * Configuration object for all HDFS components.
+ */
+@Data
+@Setter
+@Getter
+@EqualsAndHashCode
+@ToString
+@Accessors(chain = true)
+public abstract class AbstractHdfsConfig implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * A file or comma separated list of files which contains the Hadoop file system configuration.
+     * Without this, Hadoop will search the classpath for a 'core-site.xml' and 'hdfs-site.xml'
file
+     * or will revert to a default configuration.
+     */
+    private String hdfsConfigResources;
+
+    /**
+     * The HDFS directory from which files should be read from or written to.
+     */
+    private String directory;
+
+    /**
+     * The character encoding for the files, e.g. UTF-8, ASCII, etc.
+     */
+    private String encoding;
+
+    /**
+     * The compression codec used to compress/de-compress the files on HDFS.
+     */
+    private Compression compression;
+
+    /**
+     * The Kerberos user principal account to use for authentication.
+     */
+    private String kerberosUserPrincipal;
+
+    /**
+     * The full pathname to the Kerberos keytab file to use for authentication.
+     */
+    private String keytab;
+
+    public void validate() {
+        if (StringUtils.isEmpty(hdfsConfigResources) || StringUtils.isEmpty(directory)) {
 
 Review comment:
   The comments for hdfsConfigResources indicate that if this is unset we look into certain
places. Thus it looks like this check shouldnt be there?

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