root/BH13SPARQLBuilder/src/hozo/sparql/SparqlUtil.java @ 9

package jp.ac.osaka_u.sanken.sparql;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.hp.hpl.jena.rdf.model.RDFNode;

public class SparqlUtil {

        /** TSV蠖｢蠑丞�蜉�*/
        public static final int OUTPUT_TYPE_TSV = 0;
        
        public static final int OUTPUT_TYPE_CSV = 1;

        public static final int OUTPUT_TYPE_XLS = 2;

        
        private static HashMap<Integer, String> separatorMap;

        static {
                separatorMap = new HashMap<Integer, String>();
                separatorMap.put(SparqlUtil.OUTPUT_TYPE_TSV, "\t");
                separatorMap.put(SparqlUtil.OUTPUT_TYPE_CSV, ",");

        }
        
        /**
         * 謖�ｮ壹＠縺溘せ繝医Μ繝ｼ繝縺ｫ邨先棡繧呈枚蟄怜�縺ｨ縺励※蜃ｺ蜉帙☆繧�
         * @param results
         * @param type
         * @param stream
         * @return
         */
        public static boolean saveResult(List<Map<String, RDFNode>> results, int type, OutputStream stream){
                /**
                 * type縺ｫ繧医▲縺ｦresult format繧貞､峨∴縺ｦ蜀恒OST縺吶ｋ縺薙→繧り€�∴繧峨ｌ繧九′縲∵勸驕肴€ｧ縺後↑縺��縺ｧ菫晉蕗縺ｨ縺励€�
                 * 螟画鋤縺ｯ閾ｪ蜑阪〒螳溯｣�☆繧九€�
                 */
                if (type == SparqlUtil.OUTPUT_TYPE_TSV || type == SparqlUtil.OUTPUT_TYPE_CSV){
                        String separator = separatorMap.get(type);
                        if (separator == null){
                                return false;
                        }
                        SeparatedValuesExporter expo = new SeparatedValuesExporter(separator, results);
                        try {
                                expo.export(stream);
                                return true;
                        } catch (IOException e) {
                                e.printStackTrace();
                        }
                        return true;
                }
                
                return false;
        }

        public static boolean saveResult(List<Map<String, RDFNode>> results,  int type, File file) throws FileNotFoundException{
                return saveResult(results, type, new FileOutputStream(file));
        }
}