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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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import in.shop2020.metamodel.util.DBUtils;
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import in.shop2020.metamodel.util.MM;
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import java.io.Serializable;
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import java.util.HashMap;
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import java.util.Map;
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/**
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 * @author naveen
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 *
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 */
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public class DefinitionsContainer implements Serializable {
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	/**
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	 *
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	 */
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	private static final long serialVersionUID = 1L;
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	private Map<Long, Category> categories;
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	private Map<Long, SlideDefinition> slideDefinitions;
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	private Map<Long, FeatureDefinition> featureDefinitions;
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	private Map<Long, DatatypeDefinition> datatypeDefinitions;
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	private Map<Long, Unit> units;
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	/**
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	 *
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	 */
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	public DefinitionsContainer() {
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		// Lazy initialization
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	}
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	/**
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	 *
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	 * @return Map
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	 */
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	public Map<Long, Unit> getUnits() {
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		System.out.println("getUnits()");
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		// De-serialize
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		if(this.units == null) {
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			// TODO
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		}
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		return this.units;
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	}
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	/**
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	 *
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	 * @param unitID
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	 * @return Unit
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	 */
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	public Unit getUnit(long unitID) {
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		System.out.println("getUnit("+ unitID +")");
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		// Inititial
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		this.getUnits();
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		return this.units.get(new Long(unitID));
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	}
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	/**
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	 * @return the datatypeDefinitions
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	 */
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	public Map<Long, DatatypeDefinition> getDatatypeDefinitions() {
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		return datatypeDefinitions;
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	}
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	/**
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	 * @return the categories
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	 * @throws Exception
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	 */
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	@SuppressWarnings("unchecked")
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	public Map<Long, Category> getCategories() throws Exception {
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		System.out.println("getCategories()");
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		// De-serialize
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		if(this.categories == null) {
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			String dbFile = MM.DEFINITIONS_DB_PATH + "categories" + ".ser";
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			this.categories = (Map<Long, Category>) DBUtils.read(dbFile);
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		}
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		return this.categories;
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	}
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	/**
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	 *
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	 * @param categoryID
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	 * @return Category
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	 * @throws Exception
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	 */
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	public Category getCategory(long categoryID) throws Exception {
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		System.out.println("getCategory("+ categoryID +")");
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		// Inititial
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		if(this.categories == null) {
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			this.getCategories();
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		}
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		return this.categories.get(new Long(categoryID));
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	}
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	/**
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	 * @return the slideDefinitions
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	 */
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	public Map<Long, SlideDefinition> getSlideDefinitions() {
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		return slideDefinitions;
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	}
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	/**
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	 * @return the featureDefinitions
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	 */
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	public Map<Long, FeatureDefinition> getFeatureDefinitions() {
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		return featureDefinitions;
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	}
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}