[jira] [Commented] (CARBONDATA-300) 5. Add EncodeProcessorStep which encodes the data with dictionary.

[Akash R Nilugal (Jira)]

    [ https://issues.apache.org/jira/browse/CARBONDATA-300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15591328#comment-15591328 ]

ASF GitHub Bot commented on CARBONDATA-300:
-------------------------------------------

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

    https://github.com/apache/incubator-carbondata/pull/244#discussion_r84243728
 
    --- Diff: processing/src/main/java/org/apache/carbondata/processing/newflow/steps/encodestep/EncoderProcessorStepImpl.java ---
    @@ -0,0 +1,63 @@
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    + * or more contributor license agreements.  See the NOTICE file
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    +
    +package org.apache.carbondata.processing.newflow.steps.encodestep;
    +
    +import org.apache.carbondata.processing.newflow.AbstractDataLoadProcessorStep;
    +import org.apache.carbondata.processing.newflow.CarbonDataLoadConfiguration;
    +import org.apache.carbondata.processing.newflow.DataField;
    +import org.apache.carbondata.processing.newflow.encoding.RowEncoder;
    +import org.apache.carbondata.processing.newflow.encoding.impl.RowEncoderImpl;
    +import org.apache.carbondata.processing.newflow.exception.CarbonDataLoadingException;
    +import org.apache.carbondata.processing.newflow.row.CarbonRow;
    +
    +/**
    + * Encode data with dictionary values and composed with bit/byte packed key.
    + * nondictionary values are packed as bytes, and complex types are also packed as bytes.
    + */
    +public class EncoderProcessorStepImpl extends AbstractDataLoadProcessorStep {
    +
    +  private RowEncoder encoder;
    +
    +  public EncoderProcessorStepImpl(CarbonDataLoadConfiguration configuration,
    +      AbstractDataLoadProcessorStep child) {
    +    super(configuration, child);
    +  }
    +
    +  @Override public DataField[] getOutput() {
    +    return child.getOutput();
    +  }
    +
    +  @Override public void intialize() throws CarbonDataLoadingException {
    +    encoder = new RowEncoderImpl(child.getOutput(), configuration);
    +    child.intialize();
    +  }
    +
    +  @Override protected CarbonRow processRow(CarbonRow row) {
    +    return encoder.encode(row);
    +  }
    +
    +  @Override public void finish() {
    +    encoder.finish();
    +  }
    +
    +  @Override public void close() {
    +
    --- End diff --
   
    in case of failure, should there be encode.close()?

> 5. Add EncodeProcessorStep which encodes the data with dictionary.
> ------------------------------------------------------------------
>
>                 Key: CARBONDATA-300
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-300
>             Project: CarbonData
>          Issue Type: Sub-task
>            Reporter: Ravindra Pesala
>             Fix For: 0.2.0-incubating
>
>
> Add EncodeProcessorStep which encodes the data with dictionary.This dictionary can be obtained from dictionary interface.

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