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package in.shop2020.metamodel.util;
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import in.shop2020.metamodel.core.Entity;
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import in.shop2020.metamodel.core.EntityState;
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import in.shop2020.metamodel.util.CN;
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import in.shop2020.storage.bdb.StorageManager;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.io.Writer;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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/**
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 * @author rajveer
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 * @description
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 *
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 */
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public class CreationUtils {
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	private static final String LEARNED_BULLETS = "LEARNED_BULLETS";
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	private static final String DEFAULT_ENTITY_SCORES = "DEFAULT_ENTITY_SCORES";
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	private static final String FACET_VALUES = "FACET_VALUES";
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	private static final String SLIDE_SCORES = "SLIDE_SCORES";
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	/**
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	 *
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	 * @param aThrowable
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	 * @return
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	 */
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	public static String getStackTrace(Throwable aThrowable) {
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	    final Writer result = new StringWriter();
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	    final PrintWriter printWriter = new PrintWriter(result);
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	    aThrowable.printStackTrace(printWriter);
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	    return result.toString();
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	}
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	/**
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	 *
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	 * @param entity
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	 * @throws Exception
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	 */
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	public static void storeLearnedBullets(Map<Long, List<ExpandedBullet>> learnedBullets) throws Exception {
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		StorageManager.getStorageManager().storeDataObject(CreationUtils.LEARNED_BULLETS, learnedBullets);
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	}
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	@SuppressWarnings("unchecked")
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	public static Map<Long, List<ExpandedBullet>> getLearnedBullets() throws Exception {
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		return (Map<Long, List<ExpandedBullet>>) StorageManager.getStorageManager().getDataObject(CreationUtils.LEARNED_BULLETS);
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	}
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	@SuppressWarnings("unchecked")
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	public static List<ExpandedBullet> getLearnedBullets(long featureDefinitionID) throws Exception {
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		Map<Long, List<ExpandedBullet>> learnedBullets = (Map<Long, List<ExpandedBullet>>) StorageManager.getStorageManager().getDataObject(CreationUtils.LEARNED_BULLETS);
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		if(learnedBullets==null){
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			return null;
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		}
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		return learnedBullets.get(featureDefinitionID);
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	}
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	public static void storeFacetValues(Map<Long, List<String>> facetIDFacetValues) throws Exception {
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		StorageManager.getStorageManager().storeDataObject(CreationUtils.FACET_VALUES, facetIDFacetValues);
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	}
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	@SuppressWarnings("unchecked")
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	public static Map<Long, List<String>>  getFacetValues() throws Exception {
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		return (Map<Long, List<String>>) StorageManager.getStorageManager().getDataObject(CreationUtils.FACET_VALUES);
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	}
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	@SuppressWarnings("unchecked")
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	public static List<String>  getFacetValues(long facetDefinitionID) throws Exception {
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		Map<Long, List<String>> facetValues = (Map<Long, List<String>>) StorageManager.getStorageManager().getDataObject(CreationUtils.FACET_VALUES);
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		return facetValues.get(facetDefinitionID);
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	}
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	public static void storeSlideScores( Map<Long, Map<Long, Integer>> slideScoresByEntity) throws Exception {
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		StorageManager.getStorageManager().storeDataObject(CreationUtils.SLIDE_SCORES, slideScoresByEntity);
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	}
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	@SuppressWarnings("unchecked")
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	public static Map<Long, Map<Long, Integer>> getSlideScores() throws Exception {
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		return (Map<Long, Map<Long, Integer>>) StorageManager.getStorageManager().getDataObject(CreationUtils.SLIDE_SCORES);
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	}
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	@SuppressWarnings("unchecked")
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	public static Map<Long, Integer> getSlideComparisonScores(long entityID) throws Exception{
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		Map<Long, Map<Long, Integer>> slideScores = (Map<Long, Map<Long, Integer>>) StorageManager.getStorageManager().getDataObject(CreationUtils.SLIDE_SCORES);
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		return slideScores.get(entityID);
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	}
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	public static void storeDefaultEntityScores(Map<Long, Integer> finalScoreByEntityID) throws Exception {
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		StorageManager.getStorageManager().storeDataObject(CreationUtils.DEFAULT_ENTITY_SCORES, finalScoreByEntityID);
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	}
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	@SuppressWarnings("unchecked")
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	public static Map<Long, Integer> getDefaultEntityScores() throws Exception {
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		return (Map<Long, Integer>) StorageManager.getStorageManager().getDataObject(CreationUtils.DEFAULT_ENTITY_SCORES);
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	}
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	@SuppressWarnings("unchecked")
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	public static Integer getEntityComparisonScores(long entityID) throws Exception {
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		Map<Long, Integer> scoresMap =  (Map<Long, Integer>) StorageManager.getStorageManager().getDataObject(CreationUtils.DEFAULT_ENTITY_SCORES);
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		Integer objScore = scoresMap.get(entityID);
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		if(objScore==null){
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			return -1;
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		}
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		return objScore;
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	}
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	/**
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	 * Resolves Entity ID into Entity object
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	 *
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	 * @param entityID
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	 * @return Entity
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	 * @throws Exception
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	 */
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	public static Entity getEntity(long entityID) throws Exception{
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		return StorageManager.getStorageManager().getEntity(entityID);
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	}
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	public static void updateEntity(Entity entity) throws Exception {
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		entity.reorderSlides(entity.getSlideSequence());
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		StorageManager.getStorageManager().updateEntity(entity);
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		CreationUtils.learn(entity);
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	}
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	public static void createEntity(Entity entity, EntityState entityMetadata) throws Exception {
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		StorageManager.getStorageManager().createEntity(entity, entityMetadata);
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	}
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	public static void deleteEntity(long entityId) throws Exception  {
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		StorageManager.getStorageManager().deleteEntity(entityId);
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	}
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	public static Map<Long, EntityState> getEntitiesState() throws Exception {
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		return StorageManager.getStorageManager().getEntitiesMetadata();
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	}
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	public static EntityState getEntityState(long entityId) throws Exception {
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		return StorageManager.getStorageManager().getEntityMetadata(entityId);
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	}
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	public static void updateEntityState(EntityState entityMetadata) throws Exception {
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		StorageManager.getStorageManager().updateEntityMetadata(entityMetadata);
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	}
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	private static void learn(Entity entity) throws Exception{
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		CN cn = new CN();
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		cn.learn(entity);
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	}
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	public static Map<Long, Entity> getEntities() throws Exception {
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		return StorageManager.getStorageManager().getEntities();
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	}
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	public static Collection<Entity> getEntities(long categoryId) throws Exception {
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		return StorageManager.getStorageManager().getEntitisByCategory(categoryId);
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	}
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}