[jira] [Commented] (NIFI-4164) Realistic Time Series Processor Simulator

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-4164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16346705#comment-16346705 ] 

ASF GitHub Bot commented on NIFI-4164:
--------------------------------------

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

    https://github.com/apache/nifi/pull/1997#discussion_r165030818
  
    --- Diff: nifi-nar-bundles/nifi-simulator-bundle/nifi-simulator-processors/src/main/java/com/apache/nifi/processors/simulator/GenerateTimeSeriesFlowFile.java ---
    @@ -0,0 +1,180 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one or more
    + * contributor license agreements.  See the NOTICE file distributed with
    + * this work for additional information regarding copyright ownership.
    + * The ASF licenses this file to You under the Apache License, Version 2.0
    + * (the "License"); you may not use this file except in compliance with
    + * the License.  You may obtain a copy of the License at
    + *
    + *     http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +package com.apache.nifi.processors.simulator;
    +
    +import be.cetic.tsimulus.config.Configuration;
    +import org.apache.nifi.annotation.behavior.InputRequirement;
    +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.components.PropertyDescriptor;
    +import org.apache.nifi.flowfile.FlowFile;
    +import org.apache.nifi.logging.ComponentLog;
    +import org.apache.nifi.processor.AbstractProcessor;
    +import org.apache.nifi.processor.Relationship;
    +import org.apache.nifi.processor.ProcessorInitializationContext;
    +import org.apache.nifi.processor.ProcessContext;
    +import org.apache.nifi.processor.exception.ProcessException;
    +import org.apache.nifi.processor.ProcessSession;
    +import org.apache.nifi.processor.util.StandardValidators;
    +import org.joda.time.LocalDateTime;
    +import scala.Some;
    +import scala.Tuple3;
    +import scala.collection.JavaConverters;
    +
    +import java.util.List;
    +import java.util.Set;
    +import java.util.Collections;
    +import java.util.HashSet;
    +import java.util.ArrayList;
    +
    +@Tags({"Simulator, Timeseries, IOT, Testing"})
    +@InputRequirement(InputRequirement.Requirement.INPUT_FORBIDDEN)
    +@CapabilityDescription("Generates realistic time series data using the TSimulus time series generator, and places the values into the flowfile in a CSV format.")
    +public class GenerateTimeSeriesFlowFile extends AbstractProcessor {
    +
    +    private Configuration simConfig = null;
    +    private boolean isTest = false;
    +
    +    public static final PropertyDescriptor SIMULATOR_CONFIG = new PropertyDescriptor
    +            .Builder().name("SIMULATOR_CONFIG")
    +            .displayName("Simulator Configuration File")
    +            .description("The JSON configuration file to use to configure TSimulus")
    +            .required(true)
    +            .addValidator(StandardValidators.FILE_EXISTS_VALIDATOR)
    +            .build();
    +
    +    public static final PropertyDescriptor PRINT_HEADER = new PropertyDescriptor
    +            .Builder().name("PRINT_HEADER")
    +            .displayName("Print Header")
    +            .description("Directs the processor whether to print a header line or not.")
    +            .required(true)
    +            .allowableValues("true", "false")
    +            .defaultValue("false")
    +            .addValidator(StandardValidators.BOOLEAN_VALIDATOR)
    +            .build();
    +
    +    public static final Relationship SUCCESS = new Relationship.Builder()
    +            .name("Success")
    +            .description("When the flowfile is successfully generated")
    --- End diff --
    
    Needs a little cleanup. Consider something like this:
    
    > "When the flowfile is successfully generated, it is transferred to this relationship."


> Realistic Time Series Processor Simulator
> -----------------------------------------
>
>                 Key: NIFI-4164
>                 URL: https://issues.apache.org/jira/browse/NIFI-4164
>             Project: Apache NiFi
>          Issue Type: New Feature
>          Components: Extensions
>            Reporter: Chris Herrera
>            Assignee: Chris Herrera
>            Priority: Minor
>              Labels: features
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> In order to validate several flows that deal with sensor data, it would be good to have a built in time series simulator processor that generates data and can send it out via a flow file.



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