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package org.jlab.hipo.utils;

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 * @author gavalian
 */
public class ArrayUtils {
    
    public static String getBracketString(String operator, int skip){
        
        Pattern regex = Pattern.compile("\\[(.*?)\\]");
        Matcher regexMatcher = regex.matcher(operator);
        int counter = 0;
        while(regexMatcher.find()){
            //System.out.println(regexMatcher.group(1));
            if(counter==skip) return regexMatcher.group(1);
            counter++;
        }
        
        return null;
    }
    
    public static String getBracketStringCurly(String operator, int skip){
        
        Pattern regex = Pattern.compile("\\{(.*?)\\}");
        Matcher regexMatcher = regex.matcher(operator);
        int counter = 0;
        while(regexMatcher.find()){
            //System.out.println(regexMatcher.group(1));
            if(counter==skip) return regexMatcher.group(1);
            counter++;
        }
        
        return null;
    }
    
    public static List getArray(String array){
        String[] tokens = array.split(",");
        List  list = new ArrayList();
        for(int i = 0; i < tokens.length; i++){
            list.add(tokens[i].trim());
        }
        return list;
    }
    
    public static void main(String[] args){
        String schema = "{1302,DC::true}[1,px,FLOAT][2,py,FLOAT][3,pz,FLOAT]";
        String result = ArrayUtils.getBracketString(schema,0);
        String resultcurly = ArrayUtils.getBracketStringCurly(schema,0);
        System.out.println( "result = " + result);
        System.out.println( "result = " + resultcurly);
    }
}