[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=15595782#comment-15595782 ]

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

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

    https://github.com/apache/incubator-carbondata/pull/244#discussion_r84518688
 
    --- Diff: processing/src/main/java/org/apache/carbondata/processing/newflow/converter/impl/FieldEncoderFactory.java ---
    @@ -0,0 +1,69 @@
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    +package org.apache.carbondata.processing.newflow.converter.impl;
    +
    +import org.apache.carbondata.core.cache.Cache;
    +import org.apache.carbondata.core.cache.dictionary.Dictionary;
    +import org.apache.carbondata.core.cache.dictionary.DictionaryColumnUniqueIdentifier;
    +import org.apache.carbondata.core.carbon.CarbonTableIdentifier;
    +import org.apache.carbondata.core.carbon.metadata.encoder.Encoding;
    +import org.apache.carbondata.processing.newflow.DataField;
    +import org.apache.carbondata.processing.newflow.converter.FieldConverter;
    +
    +public class FieldEncoderFactory {
    +
    +  private static FieldEncoderFactory instance;
    +
    +  private FieldEncoderFactory() {
    +
    +  }
    +
    +  public static FieldEncoderFactory getInstance() {
    +    if (instance == null) {
    +      instance = new FieldEncoderFactory();
    +    }
    +    return instance;
    +  }
    +
    +  /**
    +   * Creates the FieldConverter for all dimensions, for measures return null.
    +   * @param dataField column schema
    +   * @param cache dicionary cache.
    +   * @param carbonTableIdentifier table identifier
    +   * @param index index of column in the row.
    +   * @return
    +   */
    +  public FieldConverter createFieldEncoder(DataField dataField,
    +      Cache<DictionaryColumnUniqueIdentifier, Dictionary> cache,
    +      CarbonTableIdentifier carbonTableIdentifier, int index) {
    +    // Converters are only needed for dimensions and measures it return null.
    +    if (dataField.getColumn().isDimesion()) {
    +      if (dataField.hasDictionaryEncoding()) {
    --- End diff --
   
    Type is already present in column, based on that only we are creating converters here.

> 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
>            Assignee: 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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