[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[asfgit]

Github user asfgit closed the pull request at:

https://github.com/apache/nifi/pull/1108


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[trixpan]

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

https://github.com/apache/nifi/pull/1108#discussion_r96236367
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ExtractGrok.java
 ---
@@ -0,0 +1,298 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import io.thekraken.grok.api.Grok;
+import io.thekraken.grok.api.Match;
+import io.thekraken.grok.api.exception.GrokException;
+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.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.annotation.lifecycle.OnStopped;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.components.Validator;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import org.apache.nifi.util.StopWatch;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+
+@Tags({"Grok Processor", "grok", "log", "text", "parse", "delimit", 
"extract"})
--- End diff --

"Grok Processor" looks a bit out of place but should not prevent merge. 


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[trixpan]

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

https://github.com/apache/nifi/pull/1108#discussion_r87978657
  
--- Diff: nifi-commons/nifi-processor-utilities/pom.xml ---
@@ -45,5 +45,16 @@
 nifi-ssl-context-service-api
 provided
 
+
+io.thekraken
+grok
+0.1.4
--- End diff --

A new version has been released today and contains important fixes (reduced 
depencies, better feature parity with logstash, etc). May I  suggest we upgrade 
the  dependency? 


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[joewitt]

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

https://github.com/apache/nifi/pull/1108#discussion_r87937612
  
--- Diff: nifi-assembly/LICENSE ---
@@ -1729,4 +1729,20 @@ This product bundles 'jbzip2' which is available 
under an MIT license.
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 
IN
-THE SOFTWARE.
\ No newline at end of file
+THE SOFTWARE.
--- End diff --

This whole license section can be removed.  This is the assembly license 
which is to cover all binary artifacts and source in the build of nifi itself.  
The dependency of java-grok is binary only (not source) and is ASLv2 so nothing 
needs to be in this license for it.  There should be an entry for this in the 
notice similar to the many ASLv2 examples in there.   The only thing needing 
mentioned then is the copyright line from the project's license file 
https://github.com/thekrakken/java-grok/blob/master/LICENSE.  Also, this 
nifi-asembly/NOTICE change needed will also need to be in the NOTICE of the 
nifi-standard-nar as well.

Lots of words above but the short version is "No license change needed.  
Just add a small section to the nar NOTICE and assembly NOTICE to reflect this 
ASLv2 dependency specifically because it has a copyright reference in the 
license."


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[trixpan]

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

https://github.com/apache/nifi/pull/1108#discussion_r87909770
  
--- Diff: 
nifi-commons/nifi-processor-utilities/src/main/java/org/apache/nifi/processor/util/StandardValidators.java
 ---
@@ -26,6 +26,8 @@
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Pattern;
 
+import oi.thekraken.grok.api.Grok;
--- End diff --

This validation roytine should not be added to standard validators in order 
to avoud impirting grok into the standard validator


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[joewitt]

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

https://github.com/apache/nifi/pull/1108#discussion_r84483537
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
--- End diff --

So the pattern of naming is 'Verb Subject'.  It appears the point of this 
processor, from a users point of view (not the developers), is to evaluate Grok 
expressions against flow file content to replace that content with the result 
or to update a flow file attribute with that result.  If that is the case we 
could take the approach of 'EvaluateGrok' or 'GrokEvaluateText' or 
'ExtractGrok' is also fair game I think.


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[trixpan]

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

https://github.com/apache/nifi/pull/1108#discussion_r84481939
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
--- End diff --

To this point, similar nomenclature has been used in other places:


https://github.com/DhruvKumar/nifi-grok-processor-bundle/tree/master/nifi-grok-processors/src/main/java/dhruv/nifi/processors


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[trixpan]

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

https://github.com/apache/nifi/pull/1108#discussion_r84477121
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
--- End diff --

@selim-namsi 

Perhaps you can use the description used as part of my WIP.

> "Evaluates one or more Grok Expressions against the content of a 
FlowFile, adding the results as attributes or replacing the content of the 
FlowFile with a JSON notation of the matched content"

?


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[trixpan]

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

https://github.com/apache/nifi/pull/1108#discussion_r84476015
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
--- End diff --

@markap14 - this is not a parser but an extractor (Grok is a hyper regex) 
so I suggest the name to be ExtractGrok (after ExtractText)


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[selim-namsi]

Github user selim-namsi commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83729426
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestGrokParser.java
 ---
@@ -0,0 +1,104 @@
+/*
+ * 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.standard;
+
+
+import org.apache.nifi.util.MockFlowFile;
+import org.apache.nifi.util.TestRunner;
+import org.apache.nifi.util.TestRunners;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+/**
+ * Created by snamsi on 05/10/16.
+ */
+public class TestGrokParser {
+
+private TestRunner testRunner;
+final static Path GROK_LOG_INPUT = 
Paths.get("src/test/resources/TestGrokParser/apache.log");
+final static Path GROK_TEXT_INPUT = 
Paths.get("src/test/resources/TestGrokParser/simple_text.log");
+
+
+@Before
+public void init() {
+testRunner = TestRunners.newTestRunner(GrokParser.class);
+}
+
+@Test
+public void testGrokParserWithMatchedContent() throws IOException {
+
+
+testRunner.setProperty(GrokParser.GROK_EXPRESSION, 
"%{COMMONAPACHELOG}");
+testRunner.setProperty(GrokParser.GROK_PATTERN_FILE, 
"src/test/resources/TestGrokParser/patterns");
+testRunner.enqueue(GROK_LOG_INPUT);
+testRunner.run();
+testRunner.assertAllFlowFilesTransferred(GrokParser.REL_MATCH);
+final MockFlowFile matched = 
testRunner.getFlowFilesForRelationship(GrokParser.REL_MATCH).get(0);
+
+matched.assertAttributeEquals("verb","GET");
+matched.assertAttributeEquals("response","401");
+matched.assertAttributeEquals("bytes","12846");
+matched.assertAttributeEquals("clientip","64.242.88.10");
+matched.assertAttributeEquals("auth","-");
+matched.assertAttributeEquals("timestamp","07/Mar/2004:16:05:49 
-0800");
+
matched.assertAttributeEquals("request","/twiki/bin/edit/Main/Double_bounce_sender?topicparent=Main.ConfigurationVariables");
+matched.assertAttributeEquals("httpversion","1.1");
+
+}
+
+@Test
+public void testGrokParserWithUnMatchedContent() throws IOException {
+
+
+testRunner.setProperty(GrokParser.GROK_EXPRESSION, "%{ADDRESS}");
+testRunner.setProperty(GrokParser.GROK_PATTERN_FILE, 
"src/test/resources/TestGrokParser/patterns");
+testRunner.enqueue(GROK_TEXT_INPUT);
+testRunner.run();
+testRunner.assertAllFlowFilesTransferred(GrokParser.REL_NO_MATCH);
+final MockFlowFile notMatched = 
testRunner.getFlowFilesForRelationship(GrokParser.REL_NO_MATCH).get(0);
+notMatched.assertContentEquals(GROK_TEXT_INPUT);
+
+}
+
+@Test(expected = java.lang.AssertionError.class)
+public void testGrokParserWithNotFoundPatternFile() throws IOException 
{
+
+testRunner.setProperty(GrokParser.GROK_EXPRESSION, 
"%{COMMONAPACHELOG}");
+testRunner.setProperty(GrokParser.GROK_PATTERN_FILE, 
"src/test/resources/TestGrokParser/toto_file");
+testRunner.enqueue(GROK_LOG_INPUT);
+testRunner.run();
+
+}
+
+
+@Test(expected = java.lang.AssertionError.class)
--- End diff --

 For this method "testGrokParserWithBadGrokExpression", although the 
processor is throwing GrokException, when I use assertNotValid, the test fails 
with the following message "java.lang.AssertionError: Processor appears to be 
valid but expected it to be invalid"


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[selim-namsi]

Github user selim-namsi commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83720911
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
+
+
+public static final String DESTINATION_ATTRIBUTE = 
"flowfile-attribute";
+public static final String DESTINATION_CONTENT = "flowfile-content";
+private static final String APPLICATION_JSON = "application/json";
+
+public static final PropertyDescriptor GROK_EXPRESSION = new 
PropertyDescriptor
+.Builder().name("Grok Expression")
+.description("Grok expression")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor GROK_PATTERN_FILE = new 
PropertyDescriptor
+.Builder().name("Grok Pattern file")
+.description("Grok Pattern file definition")
+.required(false)
--- End diff --

@markap14  In the first version of the code, I was loading few useful 
pattern files by default, so the user's custom pattern file was not required, 
but after removing that part I forgot to update the required attribute, I'll 
fix it


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[selim-namsi]

Github user selim-namsi commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83720540
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
+
+
+public static final String DESTINATION_ATTRIBUTE = 
"flowfile-attribute";
+public static final String DESTINATION_CONTENT = "flowfile-content";
+private static final String APPLICATION_JSON = "application/json";
+
+public static final PropertyDescriptor GROK_EXPRESSION = new 
PropertyDescriptor
+.Builder().name("Grok Expression")
+.description("Grok expression")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor GROK_PATTERN_FILE = new 
PropertyDescriptor
+.Builder().name("Grok Pattern file")
+.description("Grok Pattern file definition")
+.required(false)
+.addValidator(StandardValidators.FILE_EXISTS_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor DESTINATION = new 
PropertyDescriptor.Builder()
+.name("Destination")
+.description("Control if Grok output value is written as a new 
flowfile attribute  " +
--- End diff --

@markap14  Actually what I meant is that the output will contain many new 
flowfile attributes : the attribute names will be the grok identifiers and the 
attributes values will be the matched values. If you are okay with this I'll 
update the description


---
If 

[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83228132
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
+
+
+public static final String DESTINATION_ATTRIBUTE = 
"flowfile-attribute";
+public static final String DESTINATION_CONTENT = "flowfile-content";
+private static final String APPLICATION_JSON = "application/json";
+
+public static final PropertyDescriptor GROK_EXPRESSION = new 
PropertyDescriptor
+.Builder().name("Grok Expression")
+.description("Grok expression")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor GROK_PATTERN_FILE = new 
PropertyDescriptor
+.Builder().name("Grok Pattern file")
+.description("Grok Pattern file definition")
+.required(false)
+.addValidator(StandardValidators.FILE_EXISTS_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor DESTINATION = new 
PropertyDescriptor.Builder()
+.name("Destination")
+.description("Control if Grok output value is written as a new 
flowfile attribute  " +
+"or written in the flowfile content. Writing to 
flowfile content will overwrite any " +
+"existing flowfile content.")
+.required(true)
+.allowableValues(DESTINATION_ATTRIBUTE, DESTINATION_CONTENT)
+

[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83229088
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestGrokParser.java
 ---
@@ -0,0 +1,104 @@
+/*
+ * 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.standard;
+
+
+import org.apache.nifi.util.MockFlowFile;
+import org.apache.nifi.util.TestRunner;
+import org.apache.nifi.util.TestRunners;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+/**
+ * Created by snamsi on 05/10/16.
--- End diff --

We should not have usernames here, as Git will provide this information for 
us.


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83229754
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/resources/TestGrokParser/apache.log
 ---
@@ -0,0 +1 @@
+64.242.88.10 - - [07/Mar/2004:16:05:49 -0800] "GET 
/twiki/bin/edit/Main/Double_bounce_sender?topicparent=Main.ConfigurationVariables
 HTTP/1.1" 401 12846
--- End diff --

We have to ensure that we have proper licensing for these test files. This 
one may be one that you created yourself? If not, we need to ensure that its 
license is properly accounted for - or just mock out a new one.


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83229592
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/resources/TestGrokParser/patterns
 ---
@@ -0,0 +1,108 @@
+# Forked from 
https://github.com/elasticsearch/logstash/tree/v1.4.0/patterns
--- End diff --

We have to ensure that we have proper licensing for these test files.


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83227140
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
+
+
+public static final String DESTINATION_ATTRIBUTE = 
"flowfile-attribute";
+public static final String DESTINATION_CONTENT = "flowfile-content";
+private static final String APPLICATION_JSON = "application/json";
+
+public static final PropertyDescriptor GROK_EXPRESSION = new 
PropertyDescriptor
+.Builder().name("Grok Expression")
+.description("Grok expression")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor GROK_PATTERN_FILE = new 
PropertyDescriptor
+.Builder().name("Grok Pattern file")
+.description("Grok Pattern file definition")
+.required(false)
--- End diff --

If this is not required, how will the processor work if not set?


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83228785
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
+
+
+public static final String DESTINATION_ATTRIBUTE = 
"flowfile-attribute";
+public static final String DESTINATION_CONTENT = "flowfile-content";
+private static final String APPLICATION_JSON = "application/json";
+
+public static final PropertyDescriptor GROK_EXPRESSION = new 
PropertyDescriptor
+.Builder().name("Grok Expression")
+.description("Grok expression")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor GROK_PATTERN_FILE = new 
PropertyDescriptor
+.Builder().name("Grok Pattern file")
+.description("Grok Pattern file definition")
+.required(false)
+.addValidator(StandardValidators.FILE_EXISTS_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor DESTINATION = new 
PropertyDescriptor.Builder()
+.name("Destination")
+.description("Control if Grok output value is written as a new 
flowfile attribute  " +
+"or written in the flowfile content. Writing to 
flowfile content will overwrite any " +
+"existing flowfile content.")
+.required(true)
+.allowableValues(DESTINATION_ATTRIBUTE, DESTINATION_CONTENT)
+

[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83226436
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
--- End diff --

We should probably expand on this a bit more. Many users will not know what 
Grok is.


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83229335
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestGrokParser.java
 ---
@@ -0,0 +1,104 @@
+/*
+ * 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.standard;
+
+
+import org.apache.nifi.util.MockFlowFile;
+import org.apache.nifi.util.TestRunner;
+import org.apache.nifi.util.TestRunners;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+/**
+ * Created by snamsi on 05/10/16.
+ */
+public class TestGrokParser {
+
+private TestRunner testRunner;
+final static Path GROK_LOG_INPUT = 
Paths.get("src/test/resources/TestGrokParser/apache.log");
+final static Path GROK_TEXT_INPUT = 
Paths.get("src/test/resources/TestGrokParser/simple_text.log");
+
+
+@Before
+public void init() {
+testRunner = TestRunners.newTestRunner(GrokParser.class);
+}
+
+@Test
+public void testGrokParserWithMatchedContent() throws IOException {
+
+
+testRunner.setProperty(GrokParser.GROK_EXPRESSION, 
"%{COMMONAPACHELOG}");
+testRunner.setProperty(GrokParser.GROK_PATTERN_FILE, 
"src/test/resources/TestGrokParser/patterns");
+testRunner.enqueue(GROK_LOG_INPUT);
+testRunner.run();
+testRunner.assertAllFlowFilesTransferred(GrokParser.REL_MATCH);
+final MockFlowFile matched = 
testRunner.getFlowFilesForRelationship(GrokParser.REL_MATCH).get(0);
+
+matched.assertAttributeEquals("verb","GET");
+matched.assertAttributeEquals("response","401");
+matched.assertAttributeEquals("bytes","12846");
+matched.assertAttributeEquals("clientip","64.242.88.10");
+matched.assertAttributeEquals("auth","-");
+matched.assertAttributeEquals("timestamp","07/Mar/2004:16:05:49 
-0800");
+
matched.assertAttributeEquals("request","/twiki/bin/edit/Main/Double_bounce_sender?topicparent=Main.ConfigurationVariables");
+matched.assertAttributeEquals("httpversion","1.1");
+
+}
+
+@Test
+public void testGrokParserWithUnMatchedContent() throws IOException {
+
+
+testRunner.setProperty(GrokParser.GROK_EXPRESSION, "%{ADDRESS}");
+testRunner.setProperty(GrokParser.GROK_PATTERN_FILE, 
"src/test/resources/TestGrokParser/patterns");
+testRunner.enqueue(GROK_TEXT_INPUT);
+testRunner.run();
+testRunner.assertAllFlowFilesTransferred(GrokParser.REL_NO_MATCH);
+final MockFlowFile notMatched = 
testRunner.getFlowFilesForRelationship(GrokParser.REL_NO_MATCH).get(0);
+notMatched.assertContentEquals(GROK_TEXT_INPUT);
+
+}
+
+@Test(expected = java.lang.AssertionError.class)
--- End diff --

Rather than expected an AssertionError, we should avoid calling 
testRunner.run() and instead just use testRunner.assertNotValid()


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83228313
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
+
+
+public static final String DESTINATION_ATTRIBUTE = 
"flowfile-attribute";
+public static final String DESTINATION_CONTENT = "flowfile-content";
+private static final String APPLICATION_JSON = "application/json";
+
+public static final PropertyDescriptor GROK_EXPRESSION = new 
PropertyDescriptor
+.Builder().name("Grok Expression")
+.description("Grok expression")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
--- End diff --

We should probably use a custom validator to make sure that the configured 
value is valid.


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[markap14]

Github user markap14 commented on a diff in the pull request:

https://github.com/apache/nifi/pull/1108#discussion_r83229023
  
--- Diff: 
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/GrokParser.java
 ---
@@ -0,0 +1,243 @@
+/*
+ * 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.standard;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import oi.thekraken.grok.api.Grok;
+import oi.thekraken.grok.api.Match;
+import oi.thekraken.grok.api.exception.GrokException;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+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.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.flowfile.FlowFile;
+
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.DataUnit;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.StreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.BufferedOutputStream;
+import org.apache.nifi.stream.io.StreamUtils;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.ArrayList;
+import java.util.Collections;
+
+
+@Tags({"Grok Processor"})
+@CapabilityDescription("Use Grok expression ,a la logstash, to parse 
data.")
+@SeeAlso({})
+@ReadsAttributes({@ReadsAttribute(attribute="", description="")})
+@WritesAttributes({@WritesAttribute(attribute="", description="")})
+public class GrokParser extends AbstractProcessor {
+
+
+public static final String DESTINATION_ATTRIBUTE = 
"flowfile-attribute";
+public static final String DESTINATION_CONTENT = "flowfile-content";
+private static final String APPLICATION_JSON = "application/json";
+
+public static final PropertyDescriptor GROK_EXPRESSION = new 
PropertyDescriptor
+.Builder().name("Grok Expression")
+.description("Grok expression")
+.required(true)
+.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor GROK_PATTERN_FILE = new 
PropertyDescriptor
+.Builder().name("Grok Pattern file")
+.description("Grok Pattern file definition")
+.required(false)
+.addValidator(StandardValidators.FILE_EXISTS_VALIDATOR)
+.build();
+
+public static final PropertyDescriptor DESTINATION = new 
PropertyDescriptor.Builder()
+.name("Destination")
+.description("Control if Grok output value is written as a new 
flowfile attribute  " +
+"or written in the flowfile content. Writing to 
flowfile content will overwrite any " +
+"existing flowfile content.")
+.required(true)
+.allowableValues(DESTINATION_ATTRIBUTE, DESTINATION_CONTENT)
+

[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[selim-namsi]

Github user selim-namsi closed the pull request at:

https://github.com/apache/nifi/pull/1108


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[GitHub] nifi pull request #1108: NIFI-2565: add Grok parser

[selim-namsi]

GitHub user selim-namsi opened a pull request:

https://github.com/apache/nifi/pull/1108

NIFI-2565: add Grok parser

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

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

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

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

### For code changes:
- [ ] Have you ensured that the full suite of tests is executed via mvn 
-Pcontrib-check clean install at the root nifi folder?
- [ ] 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?
- [ ] 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/selim-namsi/nifi nifi-2565

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

https://github.com/apache/nifi/pull/1108.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 #1108


commit 447c65ec272fd72b8b55a015f36449e387400fe6
Author: Selim Namsi 
Date:   2016-10-05T16:54:37Z

nifi-2565: add Grok parser

commit 1dffac47057c85c7aba2e0b2a8543eafc88e96be
Author: Selim Namsi 
Date:   2016-10-05T17:17:49Z

nifi-2656: Update LICENSE after adding Grok Parser




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