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/**
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/**
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 *
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 *
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 */
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 */
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package in.shop2020.metamodel.definitions;
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package in.shop2020.metamodel.definitions;
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import in.shop2020.metamodel.core.Bullet;
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import in.shop2020.metamodel.core.Entity;
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import in.shop2020.metamodel.core.Entity;
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import in.shop2020.metamodel.core.Feature;
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import in.shop2020.metamodel.core.Feature;
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import in.shop2020.metamodel.core.Slide;
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import in.shop2020.metamodel.core.Slide;
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import in.shop2020.metamodel.util.ExpandedEntity;
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import in.shop2020.metamodel.util.ExpandedEntity;
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import in.shop2020.util.DBUtils;
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import in.shop2020.util.DBUtils;
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import in.shop2020.util.Utils;
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import in.shop2020.util.Utils;
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import java.io.Serializable;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.List;
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import java.util.Map;
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import java.util.Map;
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import java.util.TreeMap;
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import java.util.TreeMap;
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/**
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/**
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	 * Hashtable of Category ID to list of Entity objects
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	 * Hashtable of Category ID to list of Entity objects
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	 */
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	 */
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	private Map<Long, List<Entity>> entitiesbycategory;
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	private Map<Long, List<Entity>> entitiesbycategory;
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	/**
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	/**
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	 * Hashtable of Feature Definition ID to list of learned Bullet objects
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	 */
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	private Map<Long, List<Bullet>> learnedBullets;
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	/**
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	 * Instantiates required data structures only when needed
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	 * Instantiates required data structures only when needed
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	 */
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	 */
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	public EntityContainer() {
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	public EntityContainer() {
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		// Lazy initialization
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		// Lazy initialization
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	}
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	}
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		}
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		}
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		return this.entities;
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		return this.entities;
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	}
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	}
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	/**
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	 * Returns hashtable of list bullet objects to feature definition ID
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	 *
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	 * @return Map<Long, List<Bullet>>
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	 * @throws Exception
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	 */
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	@SuppressWarnings("unchecked")
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	public Map<Long, List<Bullet>> getLearnedBullets() throws Exception {
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		// De-serialize
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		if(this.learnedBullets == null) {
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			String dbFile = Utils.ENTITIES_DB_PATH + "learnedbullets.ser";
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			this.learnedBullets =
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				(Map<Long, List<Bullet>>) DBUtils.read(dbFile);
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		}
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		if(this.learnedBullets == null) {
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			this.learnedBullets = new HashMap<Long, List<Bullet>>();
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		}
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		return this.learnedBullets;
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	}
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	/**
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	 * Resolves Feature Definition ID into list of learned Bullet objects
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	 *
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	 * @param featureDefinitionID
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	 * @return
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	 * @throws Exception
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	 */
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	public List<Bullet> getLearnedBullets(long featureDefinitionID)
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		throws Exception {
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		if(this.learnedBullets == null) {
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			this.getLearnedBullets();
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		}
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		return this.learnedBullets.get(new Long(featureDefinitionID));
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	}
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	/**
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	/**
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	 * Returns hashtable of list entities to category ID
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	 * Returns hashtable of list entities to category ID
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	 *
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	 *
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	 * @return the entitiesbycategory Entities by category
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	 * @return the entitiesbycategory Entities by category
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	 * @throws Exception
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	 * @throws Exception