import java.io.*;
import java.awt.image.DataBufferByte;
import java.nio.channels.FileChannel;
import java.nio.*;
import java.util.Random;
import java.nio.ByteBuffer;


class IOSpeedTester
{
	public static void main(String[] args) throws IOException 
	{
		new IOSpeedTester();
	}

	Random g;

	int[] j;
	int rep=1;
	long t1,t2;
	boolean ra=false;


	byte[] b;
	DataBufferByte dbb;
	RandomAccessFile raf;
	FileInputStream fis;
	BufferedInputStream bis;
	ByteArrayInputStream bais;
	MappedByteBuffer mbb;	FileChannel fc;
	ByteBuffer bb;

	public IOSpeedTester() throws IOException {



		
		
		
			File file = new File("world_2.mp3");  // 3 MEG
			//File file = new File("05Oriento.mp3"); //7 MEG
			//File file = new File("13MartianGarageParty.wav"); //30 MEG
			
			int ln=(int)(file.length());
			g = new Random();

			


			int tt=0;
		
		
		
		
		
		
		
		///////////////////////////try {


			for (int rr=0 ; rr<1 ; rr++ ) {
				t1 = System.currentTimeMillis();

				fis = new FileInputStream(file);
				fis = new FileInputStream(file);  bis= new BufferedInputStream(fis);
				raf = new RandomAccessFile(file,"rw");
				fis = new FileInputStream(file);  b=new byte[ln];  fis.read(b);        // fis.read(b,0,ln);
				fis = new FileInputStream(file);  b=new byte[ln];  fis.read(b,0,ln);   bais=new ByteArrayInputStream(b);
				fis = new FileInputStream(file);  b=new byte[ln];  fis.read(b,0,ln);   dbb= new DataBufferByte(b,ln);
				fis = new FileInputStream(file); fc = fis.getChannel();  mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, ln);
				fis = new FileInputStream(file); bb = ByteBuffer.allocate(32000000); b=new byte[ln]; fis.read(b); bb.put(b);

//360
				t2 = System.currentTimeMillis();

				tt+=(t2-t1);
				System.out.println("initialize: "+(t2-t1));
				//b=null; //fis=null;
			}
			System.out.println("Final initialize: "+tt/10);

			// was "<10000"

			

			if (ra==true) {
				j = new int[ln];
				for (int qq=0 ; qq<ln ;qq+=1 ) {				
					//j[n]=1;	//j[n]=500000;		//j[n]=n;		//j[n]=ln-n-1;		//for (int po=0 ; po<1 ;po++ ) {	//}
					j[qq]=g.nextInt(ln);
				}



				//Unquote me for slowdown if qq<10000:
				for (int n=0 ;n<3993 ;n++ ) {			}
			}





			//Thread.sleep(10000);

		///////////////////////////} catch (Exception e){ System.out.println("Exception :" + e);}




/////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////







/////////// BufferedInputStream

			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					i = bis.read();
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....BufferedInputStream read: "+tt/rep);System.out.println();






///////////// ByteArrayInputStream

			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					i = bais.read();
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....ByteArrayInputStream read: "+tt/rep);System.out.println();





//////////// DataBufferByte

			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					i=dbb.getElem(n);
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....DataBufferByte read: "+tt/rep);

			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					dbb.setElem(n,50);
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....DataBufferByte write: "+tt/rep);

			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						i=dbb.getElem(j[n]);
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....DataBufferByte RAread: "+tt/rep);
			}
			

			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						dbb.setElem(j[n],50);
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....DataBufferByte RAwrite: "+tt/rep);
			}
			System.out.println();






///////////////////////// ByteBuffer

			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					i = bb.get(n);
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....ByteBuffer read: "+tt/rep);


			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					bb.put(n,(byte)50);
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....ByteBuffer write: "+tt/rep);

			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						i = bb.get(j[n]);
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....ByteBuffer RA read: "+tt/rep);
			}

			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						bb.put(j[n],(byte)50);
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....ByteBuffer write: "+tt/rep);
			}
			System.out.println();







///////////////////// RandomAccessFile

			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					raf.read();
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....RandomAccessFile read: "+tt/rep);

	

			//HD file writing - be careful!
			//tt=0;
			//for (int rr=0 ; rr<rep ; rr++ ) {
			//	t1 = System.currentTimeMillis();
			//	int i;
			//	for (int n=0 ; n<ln ;n+=1 ) {
			//		raf.write(50);
			//	}
			//
			//	t2 = System.currentTimeMillis();
			//	System.out.print((t2-t1)+" ");
			//	tt+=(t2-t1);
			//}
			//System.out.println(".....RandomAccessFile write: "+tt/rep);



			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						raf.seek(j[n]);  raf.read();
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....RandomAccessFile RAread: "+tt/rep);
			}


			//if (ra==true) {
			//HD file writing - be careful!
			//tt=0;
			//for (int rr=0 ; rr<rep ; rr++ ) {
			//	t1 = System.currentTimeMillis();
			//	int i;
			//	for (int n=0 ; n<ln ;n+=1 ) {
			//		raf.seek(j[n]);  raf.write(50);
			//	}
			//
			//	t2 = System.currentTimeMillis();
			//	System.out.print((t2-t1)+" ");
			//	tt+=(t2-t1);
			//}
			//System.out.println(".....RandomAccessFile RAwrite: "+tt/rep);
			//}
			System.out.println();







//////////// byte[]


			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					i = b[n];
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....byte[] read: "+tt/rep);


			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						i = b[j[n]];
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....byte[] RAread: "+tt/rep);
			}



			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					b[n]=(byte)50;
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....byte[] write: "+tt/rep);

			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						b[j[n]]=(byte)50;
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....byte[] RAwrite: "+tt/rep);
			}
			System.out.println();



















///////////////// MappedByteBuffer
			
			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					i = mbb.get(n);
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....MappedByteBuffer read: "+tt/rep);




			if (ra==true) {
				tt=0;
				for (int rr=0 ; rr<rep ; rr++ ) {
					t1 = System.currentTimeMillis();
					int i;
					for (int n=0 ; n<ln ;n+=1 ) {
						i = mbb.get(j[n]);
					}

					t2 = System.currentTimeMillis();
					System.out.print((t2-t1)+" ");
					tt+=(t2-t1);
				}
				System.out.println(".....MappedByteBuffer RA read: "+tt/rep);
			}
			System.out.println();





//////////// FileInputStream

			tt=0;
			for (int rr=0 ; rr<rep ; rr++ ) {
				t1 = System.currentTimeMillis();
				int i;
				for (int n=0 ; n<ln ;n+=1 ) {
					i = fis.read();
				}

				t2 = System.currentTimeMillis();
				System.out.print((t2-t1)+" ");
				tt+=(t2-t1);
			}
			System.out.println(".....FileInputStream read: "+tt/rep);System.out.println();







	}
}





//Scrap:
//				//b=new byte[ln];         for (int n=0 ; n<ln ;n++ ) {	b[n]=(byte)(bis.read()); }  //or.....