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fix : quicken up loading 31stJan2018 NAV
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10 changes: 10 additions & 0 deletions
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src/main/java/com/learning/mfscreener/repository/MFSchemeNavEntityRepository.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package com.learning.mfscreener.repository; | ||
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| import com.learning.mfscreener.entities.MFSchemeNavEntity; | ||
| import java.time.LocalDate; | ||
| import org.springframework.data.jpa.repository.JpaRepository; | ||
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| public interface MFSchemeNavEntityRepository extends JpaRepository<MFSchemeNavEntity, Long> { | ||
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| long countByNavDate(LocalDate navDate); | ||
| } |
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76 changes: 76 additions & 0 deletions
76
src/main/java/com/learning/mfscreener/service/MFSchemeNavService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| package com.learning.mfscreener.service; | ||
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| import com.learning.mfscreener.entities.MFSchemeNavEntity; | ||
| import com.learning.mfscreener.repository.MFSchemeNavEntityRepository; | ||
| import com.learning.mfscreener.repository.MFSchemeRepository; | ||
| import com.learning.mfscreener.utils.AppConstants; | ||
| import java.io.IOException; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.util.List; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
| import org.springframework.core.io.Resource; | ||
| import org.springframework.core.io.ResourceLoader; | ||
| import org.springframework.stereotype.Service; | ||
| import org.springframework.transaction.annotation.Transactional; | ||
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| @Service | ||
| public class MFSchemeNavService { | ||
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| private static final Logger LOGGER = LoggerFactory.getLogger(MFSchemeNavService.class); | ||
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| private final MFSchemeNavEntityRepository mfSchemeNavEntityRepository; | ||
| private final MFSchemeRepository mfSchemeRepository; | ||
| private final ResourceLoader resourceLoader; | ||
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| public MFSchemeNavService( | ||
| MFSchemeNavEntityRepository mfSchemeNavEntityRepository, | ||
| MFSchemeRepository mfSchemeRepository, | ||
| ResourceLoader resourceLoader) { | ||
| this.mfSchemeNavEntityRepository = mfSchemeNavEntityRepository; | ||
| this.mfSchemeRepository = mfSchemeRepository; | ||
| this.resourceLoader = resourceLoader; | ||
| } | ||
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| public void loadHistoricalNavOn31Jan2018ForExistingSchemes() { | ||
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| Resource resource = resourceLoader.getResource("classpath:/nav/31Jan2018Navdata.csv"); | ||
| try { | ||
| Path path = resource.getFile().toPath(); | ||
| List<String> lines = Files.lines(path).parallel().toList(); | ||
| List<MFSchemeNavEntity> mfSchemeNavEntities = lines.stream() | ||
| .skip(1) | ||
| .map(csvRow -> { | ||
| // Split the row | ||
| String[] fields = csvRow.split(","); | ||
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| // Trim and remove quotes | ||
| for (int i = 0; i < fields.length; i++) { | ||
| fields[i] = fields[i].trim().replaceAll("^\"+|\"+$", ""); | ||
| } | ||
| MFSchemeNavEntity mfSchemeNavEntity = new MFSchemeNavEntity(); | ||
| mfSchemeNavEntity.setNav(Float.valueOf(fields[0])); | ||
| mfSchemeNavEntity.setNavDate(AppConstants.GRAND_FATHERED_DATE); | ||
| mfSchemeNavEntity.setMfSchemeEntity( | ||
| mfSchemeRepository.getReferenceById(Long.valueOf(fields[2].replace("\"\"", "")))); | ||
| return mfSchemeNavEntity; | ||
| }) | ||
| .toList(); | ||
| List<MFSchemeNavEntity> persistedEntities = mfSchemeNavEntityRepository.saveAll(mfSchemeNavEntities); | ||
| LOGGER.info("Persisted : {} rows", persistedEntities.size()); | ||
| } catch (IOException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
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| @Transactional(readOnly = true) | ||
| public boolean navLoadedFor31Jan2018ForExistingSchemes() { | ||
| return mfSchemeNavEntityRepository.countByNavDate(AppConstants.GRAND_FATHERED_DATE) >= 5908; | ||
| } | ||
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| @Transactional | ||
| public boolean navLoadedForClosedOrMergedSchemes() { | ||
| return mfSchemeNavEntityRepository.countByNavDate(AppConstants.GRAND_FATHERED_DATE) >= 9000; | ||
| } | ||
| } |
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