Java to Groovy Help

[bisketraja]

Here is a Java program.  Please rewrite it in readable Groovy code.
 

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

 

public class PreScreening {

 

  public List run(int reviewDetailsPerPage, List<Map> reviewsList) {

    Map<String, List<Map>> groupedByFeatures = new HashMap();

    for (Map<String, String> review : reviewsList) {

      String feature = review.get("feature");

      List<Map> reviews = groupedByFeatures.get(feature);

      if (reviews == null) {

        reviews = new ArrayList();

      }

      reviews.add(review);

      groupedByFeatures.put(feature, reviews);

    }

 

    List groupedAndPaged = new ArrayList();

    for (Map.Entry<String, List<Map>> entry : groupedByFeatures.entrySet()) {

      List<Map> page = new ArrayList();

      int pageCounter = 0;

      for (Map<String, Object> review : entry.getValue()) {

        page.add(review);

        if (reviewDetailsPerPage == page.size()) {

          Map<String, Object> reviewDetail = new HashMap();

          reviewDetail.put("feature", entry.getKey());

          reviewDetail.put("page", pageCounter);

          reviewDetail.put("totalRecords", entry.getValue().size());

          reviewDetail.put("reviews", page);

          groupedAndPaged.add(reviewDetail);

          pageCounter++;

          page = new ArrayList();

        }

      }

    }

 

    return groupedAndPaged;

  }

 

  public static void main(String [] args) {

    PreScreening preScreening = new PreScreening();

 

    List<Map> input = new ArrayList();

 

    Map reviewOne = new HashMap();

    reviewOne.put("reviewId", "2874274");

    reviewOne.put("feature", "can use this product");

    input.add(reviewOne);

 

    Map reviewTwo = new HashMap();

    reviewTwo.put("reviewId", "3535533");

    reviewTwo.put("feature", "can use this product");

    input.add(reviewTwo);

 

    Map reviewThree = new HashMap();

    reviewThree.put("reviewId", "5839589");

    reviewThree.put("feature", "can not use this product");

    input.add(reviewThree);

 

    List<Map> output = preScreening.run(1, input);

 

    List<Map> expectedOutput = new ArrayList();

 

    Map<String, Object> reviewPageOne = new HashMap();

    reviewPageOne.put("feature", "can use this product");

    reviewPageOne.put("page", 0);

    reviewPageOne.put("totalRecords", 2);

    List<Map> reviewListOne = new ArrayList();

    reviewListOne.add(reviewOne);

    reviewPageOne.put("reviews", reviewListOne);

    expectedOutput.add(reviewPageOne);

 

    Map<String, Object> reviewPageTwo = new HashMap();

    reviewPageTwo.put("feature", "can use this product");

    reviewPageTwo.put("page", 1);

    reviewPageTwo.put("totalRecords", 2);

    List<Map> reviewListTwo = new ArrayList();

    reviewListTwo.add(reviewTwo);

    reviewPageTwo.put("reviews", reviewListTwo);

    expectedOutput.add(reviewPageTwo);

 

    Map<String, Object> reviewPageThree = new HashMap();

    reviewPageThree.put("feature", "can not use this product");

    reviewPageThree.put("page", 0);

    reviewPageThree.put("totalRecords", 1);

    List<Map> reviewListThree = new ArrayList();

    reviewListThree.add(reviewThree);

    reviewPageThree.put("reviews", reviewListThree);

    expectedOutput.add(reviewPageThree);

 

    if (!expectedOutput.equals(output)) {

      throw new AssertionError("Expected: " + expectedOutput + " is not equals to Actual: " + output);

    }

 

  }

}

 

Can anyone help me?

[tortoise]

[ICANWIN]

I searched for an API /tool/shell script for this conversion . Work kaledu dude. I think you should manually write conversion code. 

Hope this link helps.

https://dzone.com/articles/java-groovy-few-easy-steps

[fake_Bezawada]

endhuku convert chedam anukuntunav .groovy lo idhe code rasi compile chesi run chesina avtundhi 

groovy ki java ki pedda diff em ledhu except syntax 

[ICANWIN]

4 minutes ago, fake_Bezawada said:

endhuku convert chedam anukuntunav .groovy lo idhe code rasi compile chesi run chesina avtundhi 

groovy ki java ki pedda diff em ledhu except syntax 

 I think adi pre interview code test. But yeah  agree with what you told. 

[bisketraja]

22 minutes ago, ICANWIN said:

I searched for an API /tool/shell script for this conversion . Work kaledu dude. I think you should manually write conversion code. 

Hope this link helps.

https://dzone.com/articles/java-groovy-few-easy-steps

Thanks bro for trying.

[bisketraja]

19 minutes ago, fake_Bezawada said:

endhuku convert chedam anukuntunav .groovy lo idhe code rasi compile chesi run chesina avtundhi 

groovy ki java ki pedda diff em ledhu except syntax 

 

14 minutes ago, ICANWIN said:

 I think adi pre interview code test. But yeah  agree with what you told. 

Pre interview question. I have experience in java but not groovy. Interview vaste kurchoni nerchukovachu kani submission ki time ledu. Evaranna help chestaremo ani ikkada vesa. Thanks for the responses