<commit_before>package de.uni_freiburg.informatik.dbis.sempala.translator;


import java.io.FileNotFoundException;
import java.io.PrintWriter;

import org.apache.log4j.Logger;

import com.hp.hpl.jena.query.Query;
import com.hp.hpl.jena.query.QueryFactory;
import com.hp.hpl.jena.shared.PrefixMapping;
import com.hp.hpl.jena.sparql.algebra.Algebra;
import com.hp.hpl.jena.sparql.algebra.Op;
import com.hp.hpl.jena.sparql.algebra.Transformer;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterConjunction;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterDisjunction;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterEquality;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterPlacement;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformJoinStrategy;

import de.uni_freiburg.informatik.dbis.sempala.translator.op.ImpalaOp;
import de.uni_freiburg.informatik.dbis.sempala.translator.sparql.AlgebraTransformer;
import de.uni_freiburg.informatik.dbis.sempala.translator.sparql.BGPOptimizerNoStats;
import de.uni_freiburg.informatik.dbis.sempala.translator.sparql.TransformFilterVarEquality;


/**
 * Main Class of the ImpalaSPARQL translator.
 * This class generates the Algebra Tree for a SPARQL query,
 * performs some optimizations, translates the Algebra tree into an
 * ImpalaOp tree, initializes the translation and collects the final output.
 *
 * @author <NAME>
 */
public class Translator {

	/** The input file containing the sparql query */
	private String inputFile = null;

	/** The format to use to build the output queries against */
	private Format format = Format.SINGLETABLE;

	/** Indicates if pefixes in the RDF Triples should be expanded or not */
	private boolean expandPrefixes = false;

	/** Indicates if optimizations of the SPARQL Algebra are enabled */
	private boolean optimizer = false;

	/** Indicates if BGP optimizations are enabled */
	private boolean bgpOptimizer = true;

	/** Indicates if join optimizations are enabled */
	private boolean joinOptimizer = false;

	/** Indicates if filter optimizations are enabled */
	private boolean filterOptimizer = true;

	// Define a static logger variable so that it references the corresponding Logger instance
	private static final Logger logger = Logger.getLogger(Translator.class);

	/**
	 * Translates the SPARQL query into a sql script for use with Impala.
	 */
	public String translateQuery() {

		assert ! ( inputFile!=null ) : "in- and output must not be null!";

		//Parse input query
		Query query = QueryFactory.read("file:"+inputFile);

		//Get prefixes defined in the query
		PrefixMapping prefixes = query.getPrefixMapping();

		//Generate translation logfile
		PrintWriter logWriter;
		try {<commit_msg>Added variable Threshold<commit_after>package de.uni_freiburg.informatik.dbis.sempala.translator;


import java.io.FileNotFoundException;
import java.io.PrintWriter;

import org.apache.log4j.Logger;

import com.hp.hpl.jena.query.Query;
import com.hp.hpl.jena.query.QueryFactory;
import com.hp.hpl.jena.shared.PrefixMapping;
import com.hp.hpl.jena.sparql.algebra.Algebra;
import com.hp.hpl.jena.sparql.algebra.Op;
import com.hp.hpl.jena.sparql.algebra.Transformer;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterConjunction;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterDisjunction;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterEquality;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterPlacement;
import com.hp.hpl.jena.sparql.algebra.optimize.TransformJoinStrategy;

import de.uni_freiburg.informatik.dbis.sempala.translator.op.ImpalaOp;
import de.uni_freiburg.informatik.dbis.sempala.translator.sparql.AlgebraTransformer;
import de.uni_freiburg.informatik.dbis.sempala.translator.sparql.BGPOptimizerNoStats;
import de.uni_freiburg.informatik.dbis.sempala.translator.sparql.TransformFilterVarEquality;


/**
 * Main Class of the ImpalaSPARQL translator.
 * This class generates the Algebra Tree for a SPARQL query,
 * performs some optimizations, translates the Algebra tree into an
 * ImpalaOp tree, initializes the translation and collects the final output.
 *
 * @author <NAME>
 */
public class Translator {

	/** The input file containing the sparql query */
	private String inputFile = null;

	/** The format to use to build the output queries against */
	private Format format = Format.SINGLETABLE;

	/** Indicates if pefixes in the RDF Triples should be expanded or not */
	private boolean expandPrefixes = false;

	/** Indicates if optimizations of the SPARQL Algebra are enabled */
	private boolean optimizer = false;

	/** Indicates if BGP optimizations are enabled */
	private boolean bgpOptimizer = true;

	/** Indicates if join optimizations are enabled */
	private boolean joinOptimizer = false;

	/** Indicates if filter optimizations are enabled */
	private boolean filterOptimizer = true;
	
	/** The value of threshold*/
	public String threshold;

	// Define a static logger variable so that it references the corresponding Logger instance
	private static final Logger logger = Logger.getLogger(Translator.class);

	/**
	 * Translates the SPARQL query into a sql script for use with Impala.
	 */
	public String translateQuery() {

		assert ! ( inputFile!=null ) : "in- and output must not be null!";

		//Parse input query
		Query query = QueryFactory.read("file:"+inputFile);

		//Get prefixes defined in the query
		PrefixMapping prefixes = query.getPrefixMapping();

		//Generate translation logfile
		PrintWriter logWriter;
		try {
{'fraction_non_alphanumeric': 0.09135047653299766, 'fraction_numerical': 0.0003596475454055026, 'mean_word_length': 4.739938080495356, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '1469734', 'n_tokens_mistral': 1796, 'n_tokens_neox': 1709, 'n_words': 461}