package tomekp.experiment1;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import org.apache.commons.lang.ArrayUtils;

public class PerfTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		List<String> list1 = null;
		List<String> list2 = new ArrayList<String>();
		list2.addAll(list1);
		long sm1 = System.currentTimeMillis();
		for(int i =0;i < 10000000;i++){
			HashMap hm = new HashMap(1);
			hm.put(1, 1);
		}
		long em1  = System.currentTimeMillis();
		System.out.println("map1:" + (em1 -sm1 ));
		
		long sm2 = System.currentTimeMillis();
		for(int i =0;i < 10000000;i++){
			HashMap hm = new HashMap(2);
			hm.put(1, 1);
		}
		long em2  = System.currentTimeMillis();
		System.out.println("map1:" + (em2 -sm2 ));
		
		int boundary = 1000;
		System.out.println("a");
		List<String> list = new ArrayList<String>();
		for(int i = 0;i < boundary;i++){
			list.add("a"+i);
		}
		
		/*System.out.println("b");
		String longString = new String();
		for(int i = 0;i < boundary ;i++){
			longString = longString.concat("a"+i+"_");
		}*/
		
		System.out.println("c");
		
		long s = System.currentTimeMillis();
		String[] array = list.toArray(new String[list.size()]);
		long e = System.currentTimeMillis();
		System.out.println("transform: " + (e-s));
		
		long s1 = System.currentTimeMillis();
		for(int i = 0;i < boundary ;i++){
			if(list.contains("a"+i)){
				//System.out.println("ok1");
			}
		}
		long e1 = System.currentTimeMillis();
		System.out.println("list: " + (e1-s1));

		/*long s2 = System.currentTimeMillis();
		for(int i = 0;i < boundary; i++){
			if(longString.contains("a"+i)){
				//System.out.println("ok2");
			}
		}
		long e2 = System.currentTimeMillis();
		System.out.println("string:" + (e2-s2));
		*/
		
		long s3 = System.currentTimeMillis();
		for(int i = 0;i < boundary; i++){
			if(array[i].equals("a"+i)){
				//System.out.println("ok3");
				//System.out.println(array[i]);
			}
		}
		long e3 = System.currentTimeMillis();
		System.out.println("array:" + (e3-s3));
		
		
		long s5 = System.currentTimeMillis();
		ArrayUtils.contains(list.toArray(new String[list.size()]), new String("a"+1000));
		long e5 = System.currentTimeMillis();
		System.out.println("array:" + (e5-s5));
	}

}