[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16515705#comment-16515705
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user asfgit closed the pull request at:

https://github.com/apache/nifi/pull/2639


> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
>  Labels: patch, pull-request-available
> Fix For: 1.7.0
>
> Attachments: NiFi-GetHDFSFileInfo.pdf, gethdfsfileinfo.patch
>
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per each file/dir info (in content as json obj or in set of 
> attributes by the choice).



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[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16515703#comment-16515703
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on the issue:

https://github.com/apache/nifi/pull/2639
  
Looks good, will merge, thanks!


> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
>  Labels: patch, pull-request-available
> Attachments: NiFi-GetHDFSFileInfo.pdf, gethdfsfileinfo.patch
>
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per each file/dir info (in content as json obj or in set of 
> attributes by the choice).



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[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16514864#comment-16514864
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bdesert commented on the issue:

https://github.com/apache/nifi/pull/2639
  
@bbende , thank you for your comments! I've made the changes to address all 
your concerns. Please review once you have a time.


> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
>  Labels: patch, pull-request-available
> Attachments: NiFi-GetHDFSFileInfo.pdf, gethdfsfileinfo.patch
>
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per each file/dir info (in content as json obj or in set of 
> attributes by the choice).



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[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16514838#comment-16514838
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bdesert commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r195906907
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16514836#comment-16514836
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bdesert commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r195906819
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16514830#comment-16514830
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bdesert commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r195906462
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
--- End diff --

@bbende , removed TriggerWhenEmpty and TriggerSerially. Copy/paste from 
statefull processor, no need in this case.


> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
>  Labels: patch, pull-request-available
> Attachments: NiFi-GetHDFSFileInfo.pdf, gethdfsfileinfo.patch
>
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16514823#comment-16514823
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bdesert commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r195905944
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508396#comment-16508396
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194430127
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508397#comment-16508397
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194424610
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
--- End diff --

@TriggerWhenEmpty is used to make the framework trigger the processor when 
there is an empty incoming connection, is that necessary in this case? 

You typically use this if there is a case where you need to perform some 
kind of check/clean-up even when no flow files are available.


> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
>  Labels: patch, pull-request-available
> Attachments: NiFi-GetHDFSFileInfo.pdf, gethdfsfileinfo.patch
>
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508401#comment-16508401
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194456502
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508392#comment-16508392
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194421999
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508395#comment-16508395
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194443340
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508400#comment-16508400
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194446685
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508391#comment-16508391
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194421861
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508398#comment-16508398
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194437894
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508399#comment-16508399
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194428165
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508394#comment-16508394
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194427937
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16508393#comment-16508393
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

Github user bbende commented on a diff in the pull request:

https://github.com/apache/nifi/pull/2639#discussion_r194421928
  
--- Diff: 
nifi-nar-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/GetHDFSFileInfo.java
 ---
@@ -0,0 +1,803 @@
+/*
+ * 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.nifi.processors.hadoop;
+
+import java.io.IOException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsAction;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.TriggerSerially;
+import org.apache.nifi.annotation.behavior.TriggerWhenEmpty;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyValue;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import 
org.apache.nifi.processors.hadoop.GetHDFSFileInfo.HDFSFileInfoRequest.Groupping;
+
+@TriggerSerially
+@TriggerWhenEmpty
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@Tags({"hadoop", "HDFS", "get", "list", "ingest", "source", "filesystem"})
+@CapabilityDescription("Retrieves a listing of files and directories from 
HDFS. "
++ "This processor creates a FlowFile(s) that represents the HDFS 
file/dir with relevant information. "
++ "Main purpose of this processor to provide functionality similar 
to HDFS Client, i.e. count, du, ls, test, etc. "
++ "Unlike ListHDFS, this processor is stateless, supports incoming 
connections and provides information on a dir level. "
+)
+@WritesAttributes({
+@WritesAttribute(attribute="hdfs.objectName", description="The name of 
the file/dir found on HDFS."),
+@WritesAttribute(attribute="hdfs.path", description="The path is set 
to the absolute path of the object's parent directory on HDFS. "
++ "For example, if an object is a directory 'foo', under 
directory '/bar' then 'hdfs.objectName' will have value 'foo', and 'hdfs.path' 
will be '/bar'"),
+@WritesAttribute(attribute="hdfs.type", description="The type of an 
object. Possible values: directory, file, link"),
+@WritesAttribute(attribute="hdfs.owner", 

[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16441080#comment-16441080
 ] 

ASF GitHub Bot commented on NIFI-4906:
--

GitHub user bdesert opened a pull request:

https://github.com/apache/nifi/pull/2639

NIFI-4906 Add GetHDFSFileInfo

NIFI-4906: Added support to scan HDFS to get files and directories 
information without pulling the files.
---

Thank you for submitting a contribution to Apache NiFi.

In order to streamline the review of the contribution we ask you
to ensure the following steps have been taken:

### For all changes:
- [x] Is there a JIRA ticket associated with this PR? Is it referenced 
 in the commit message?

- [x] Does your PR title start with NIFI- where  is the JIRA number 
you are trying to resolve? Pay particular attention to the hyphen "-" character.

- [x] Has your PR been rebased against the latest commit within the target 
branch (typically master)?

- [x] Is your initial contribution a single, squashed commit?

### For code changes:
- [x] Have you ensured that the full suite of tests is executed via mvn 
-Pcontrib-check clean install at the root nifi folder?
- [x] Have you written or updated unit tests to verify your changes?
- [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)? 
- [ ] If applicable, have you updated the LICENSE file, including the main 
LICENSE file under nifi-assembly?
- [ ] If applicable, have you updated the NOTICE file, including the main 
NOTICE file found under nifi-assembly?
- [x] If adding new Properties, have you added .displayName in addition to 
.name (programmatic access) for each of the new properties?

### For documentation related changes:
- [ ] Have you ensured that format looks appropriate for the output in 
which it is rendered?

### Note:
Please ensure that once the PR is submitted, you check travis-ci for build 
issues and submit an update to your PR as soon as possible.


You can merge this pull request into a Git repository by running:

$ git pull https://github.com/bdesert/nifi NIFI-4906-Add-GetHdfsFileInfo

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/nifi/pull/2639.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #2639


commit 8f371524ca9ee09af288e0883e1e3f3861034af9
Author: Ed 
Date:   2018-04-17T14:26:50Z

NIFI-4906 Add GetHDFSFileInfo




> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
> Attachments: NiFi-GetHDFSFileInfo.pdf
>
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per each file/dir info (in content as json obj or in set of 
> attributes by the choice).



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[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[Ed Berezitsky (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16384870#comment-16384870
 ] 

Ed Berezitsky commented on NIFI-4906:
-

Attached API (NIFI usage page) for the processor. Would love to hear feedback 
from community.

> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
> Attachments: NiFi-GetHDFSFileInfo.pdf
>
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per each file/dir info (in content as json obj or in set of 
> attributes by the choice).



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[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[Ed Berezitsky (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16377031#comment-16377031
 ] 

Ed Berezitsky commented on NIFI-4906:
-

ListHDFS is stateful and doesn't support directory-level info in result set. It 
also doesn't support incoming connections. Sometimes you don't need to "get" a 
file, you just need to know that the file(s)/dir(s) exists or not and all the 
information related to it (size, permissions and other listed in description). 
Since HDF not always running on an edge of HDP cluster, you also cannot use 
execute script to run hdfs dfs commands. So this effort if to create kinda HDFS 
client for read-only operations (-count, -du, -ls, -test and some others).

I hope it makes sense.

> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per each file/dir info (in content as json obj or in set of 
> attributes by the choice).



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[jira] [Commented] (NIFI-4906) Add GetHdfsFileInfo Processor

[Sivaprasanna Sethuraman (JIRA)]

[ 
https://issues.apache.org/jira/browse/NIFI-4906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16376153#comment-16376153
 ] 

Sivaprasanna Sethuraman commented on NIFI-4906:
---

Is ListHDFS not good enough for this? It covers almost all of the required info 
that you have mentioned.

> Add GetHdfsFileInfo Processor
> -
>
> Key: NIFI-4906
> URL: https://issues.apache.org/jira/browse/NIFI-4906
> Project: Apache NiFi
>  Issue Type: New Feature
>  Components: Extensions
>Reporter: Ed Berezitsky
>Assignee: Ed Berezitsky
>Priority: Major
>
> Add *GetHdfsFileInfo* Processor to be able to get stats from a file system.
> This processor should support recursive scan, getting information of 
> directories and files.
> _File-level info required_: name, path, length, modified timestamp, last 
> access timestamp, owner, group, permissions.
> _Directory-level info required_: name, path, sum of lengths of files under a 
> dir, count of files under a dir, modified timestamp, last access timestamp, 
> owner, group, permissions.
>  
> The result returned:
>  * in single flow file (in content - a json line per file/dir info);
>  * flow file per each file/dir info (in content as json obj or in set of 
> attributes by the choice).



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