Subversion Repositories SmartDukaan

/**

 * 

 */

package in.shop2020.util;

import in.shop2020.metamodel.definitions.Catalog;

import in.shop2020.metamodel.definitions.EntityContainer;

import in.shop2020.metamodel.definitions.EnumDefinition;

import in.shop2020.metamodel.definitions.EnumValue;

import in.shop2020.metamodel.definitions.FeatureDefinition;

import in.shop2020.metamodel.definitions.RuleDefinition;

import in.shop2020.metamodel.definitions.SlideDefinition;

import in.shop2020.metamodel.util.ExpandedBullet;

import in.shop2020.metamodel.util.ExpandedBulletDefinition;

import in.shop2020.metamodel.util.ExpandedFacetDefinition;

import in.shop2020.metamodel.util.ExpandedFeatureDefinition;

import in.shop2020.metamodel.util.ExpandedSlideDefinition;

import in.shop2020.metamodel.util.ExpandedSlideFeatureDefinition;

import java.util.ArrayList;

import java.util.List;

import org.python.core.PyObject;

import org.python.core.PyString;

/**

 * Wrapper around Jython for Meta-data related to Information Retrieval data

 * 

 * @author naveen

 *

 */

public class IRMetaDataJythonWrapper extends JythonWrapper {

	/**

	 * Local instance of Facet Definition - Used to pick script to execute

	 */

	private ExpandedFacetDefinition expandedFacetDefinition = null;

	/**

	 * Resets current PythonInterpreter instance

	 */

	public void reset() {

		super.reset();

		this.expandedFacetDefinition = null;

	}

	/**

	 * 

	 * @param expandedFacetDefinition

	 */

	public void setExpandedFacetDefinition(

			ExpandedFacetDefinition expandedFacetDefinition) {

		this.initialize();

		this.expandedFacetDefinition = expandedFacetDefinition;

		this.py.set("expFacetDef", expandedFacetDefinition);

	}

	/**

	 * Executes IR Data rule from ExpandedFacetDefinition instance

	 * @throws Exception 

	 */

	public void executeRule() throws Exception {

		if(this.py == null || this.expandedFacetDefinition == null) {

			throw new IllegalStateException(

					"Not initialized properly");

		}

		FeatureDefinition featureDef = 

			this.expandedFacetDefinition.getFeatureDefinition();

		SlideDefinition slideDef = 

			this.expandedFacetDefinition.getSlideDefinition();

		List<String> possibleValues = new ArrayList<String>();

		// expFeatureDef

		if(featureDef != null) {

			ExpandedFeatureDefinition expFeatureDef = 

				new ExpandedFeatureDefinition(featureDef);

			this.py.set("expFeatureDef", expFeatureDef);

			ExpandedBulletDefinition expBulletDef = 

				expFeatureDef.getExpandedBulletDefinition();

			// Learned 

			if(expBulletDef.isLearned()) {

				EntityContainer ents = 

					Catalog.getInstance().getEntityContainer();

				List<ExpandedBullet> learnedBullets = 

					ents.getLearnedBullets(expFeatureDef.getID());

				for(ExpandedBullet expBullet : learnedBullets) {

					// REVISIT - for now

					possibleValues.add(expBullet.getValue());

				}

				this.py.set("possibleValues", possibleValues);

			}

			// Fixed

			else if (expBulletDef.isEnumerated()) {

				EnumDefinition enumDef = 

					(EnumDefinition) expBulletDef.getDatatypeDefinition();

				List<EnumValue> enumValues = enumDef.getEnumValues();

				for(EnumValue enumValue : enumValues) {

					possibleValues.add(enumValue.getValue());

				}

				this.py.set("possibleValues", possibleValues);

			}

		}	

		// expSlideDef

		else if(slideDef != null) {

			ExpandedSlideDefinition expSlideDef = 

				new ExpandedSlideDefinition(slideDef);

			this.py.set("expSlideDef", expSlideDef);

			List<ExpandedSlideFeatureDefinition> expSlideFeatureDefs = 

				expSlideDef.getExpandedSlideFeatureDefinitions();

			for(ExpandedSlideFeatureDefinition expSlideFeatureDef : 

					expSlideFeatureDefs) {

				ExpandedFeatureDefinition expFeatureDef = 

					expSlideFeatureDef.getExpandedFeatureDefinition();

				possibleValues.add(expFeatureDef.getLabel());

			}

			// Feature Labels

			this.py.set("possibleValues", possibleValues);

		}

		RuleDefinition ruleDef = 

			this.expandedFacetDefinition.getIrMetadataRuleDefinition();

		String pyScript = ruleDef.getScript();

		String scriptFullPath = Utils.JYTHON_SRC_PATH + "irmetadatarules/" + 

			pyScript;

		Utils.info("ruleDef.getID()=" + ruleDef.getID());

		Utils.info("scriptFullPath=" + scriptFullPath);

		this.exec(scriptFullPath);

	}

	/**

	 * 

	 * @return

	 */

	public String getXMLSnippet() {

		if(this.py == null) {

			throw new IllegalStateException("Exec is not called yet");

		}

		PyObject xmlsnippet = this.py.get("xmlsnippet");

		return ((PyString)xmlsnippet).toString();

	}

}