jpayne@68: package fun;
jpayne@68: 
jpayne@68: import java.io.PrintStream;
jpayne@68: import java.util.Locale;
jpayne@68: 
jpayne@68: import shared.Parse;
jpayne@68: import shared.Parser;
jpayne@68: import shared.PreParser;
jpayne@68: import shared.ReadStats;
jpayne@68: import shared.Shared;
jpayne@68: import shared.Timer;
jpayne@68: 
jpayne@68: public class Calc {
jpayne@68: 	
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	/*----------------        Initialization        ----------------*/
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	
jpayne@68: 	/**
jpayne@68: 	 * Code entrance from the command line.
jpayne@68: 	 * @param args Command line arguments
jpayne@68: 	 */
jpayne@68: 	public static void main(String[] args){
jpayne@68: 		Timer t=new Timer();
jpayne@68: 		Calc x=new Calc(args);
jpayne@68: 		x.process(t);
jpayne@68: 		
jpayne@68: 		//Close the print stream if it was redirected
jpayne@68: 		Shared.closeStream(x.outstream);
jpayne@68: 	}
jpayne@68: 	
jpayne@68: 	/**
jpayne@68: 	 * Constructor.
jpayne@68: 	 * @param args Command line arguments
jpayne@68: 	 */
jpayne@68: 	public Calc(String[] args){
jpayne@68: 		
jpayne@68: 		{//Preparse block for help, config files, and outstream
jpayne@68: 			PreParser pp=new PreParser(args, getClass(), false);
jpayne@68: 			args=pp.args;
jpayne@68: 			outstream=pp.outstream;
jpayne@68: 		}
jpayne@68: 		
jpayne@68: 		//Create a parser object
jpayne@68: 		Parser parser=new Parser();
jpayne@68: 		
jpayne@68: 		//Parse each argument
jpayne@68: 		for(int i=0; i<args.length; i++){
jpayne@68: 			String arg=args[i];
jpayne@68: 			
jpayne@68: 			//Break arguments into their constituent parts, in the form of "a=b"
jpayne@68: 			String[] split=arg.split("=");
jpayne@68: 			String a=split[0].toLowerCase();
jpayne@68: 			String b=split.length>1 ? split[1] : null;
jpayne@68: 			
jpayne@68: 			if(a.equals("verbose")){
jpayne@68: 				verbose=Parse.parseBoolean(b);
jpayne@68: 			}else if(a.equals("parse_flag_goes_here")){
jpayne@68: 				long fake_variable=Parse.parseKMG(b);
jpayne@68: 				//Set a variable here
jpayne@68: 			}else if(a.equals("num") || a.equals("numstats")){
jpayne@68: 				numStats=Integer.parseInt(b);
jpayne@68: 			}else if(parser.parse(arg, a, b)){//Parse standard flags in the parser
jpayne@68: 				//do nothing
jpayne@68: 			}else{
jpayne@68: 				outstream.println("Unknown parameter "+args[i]);
jpayne@68: 				assert(false) : "Unknown parameter "+args[i];
jpayne@68: 			}
jpayne@68: 		}
jpayne@68: 		
jpayne@68: 		{//Process parser fields
jpayne@68: 			
jpayne@68: 			overwrite=ReadStats.overwrite=parser.overwrite;
jpayne@68: 			append=ReadStats.append=parser.append;
jpayne@68: 
jpayne@68: 			out1=parser.out1;
jpayne@68: 		}
jpayne@68: 	}
jpayne@68: 	
jpayne@68: 
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	/*----------------         Outer Methods        ----------------*/
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 
jpayne@68: 	/** Create read streams and process all data */
jpayne@68: 	void process(Timer t){
jpayne@68: 		
jpayne@68: 		//Process the read stream
jpayne@68: 		processInner(numStats);
jpayne@68: 		
jpayne@68: 		if(verbose){outstream.println("Finished; closing streams.");}
jpayne@68: 		
jpayne@68: 		//Report timing and results
jpayne@68: 		{
jpayne@68: 			t.stop();
jpayne@68: 			outstream.println("Time: \t"+t);
jpayne@68: 		}
jpayne@68: 		
jpayne@68: 		//Throw an exception of there was an error in a thread
jpayne@68: 		if(errorState){
jpayne@68: 			throw new RuntimeException(getClass().getName()+" terminated in an error state; the output may be corrupt.");
jpayne@68: 		}
jpayne@68: 	}
jpayne@68: 	
jpayne@68: 	/** Iterate through the reads */
jpayne@68: 	void processInner(int numStats){
jpayne@68: 		int bits=numStats*5;
jpayne@68: 		final int iters=1<<bits;
jpayne@68: 		final int buckets=1+31*numStats;
jpayne@68: 		int[] counts=new int[buckets];
jpayne@68: 		for(int i=0; i<iters; i++){
jpayne@68: 			counts[sum(i)]++;
jpayne@68: 		}
jpayne@68: 		int[] cumulative=new int[buckets];
jpayne@68: 		cumulative[0]=counts[0];
jpayne@68: 		for(int i=1; i<buckets; i++){
jpayne@68: 			cumulative[i]=cumulative[i-1]+counts[i];
jpayne@68: 		}
jpayne@68: 		//StringBuilder sb=new StringBuilder();
jpayne@68: 		final double mult=100.0/iters;
jpayne@68: 		for(int i=0; i<buckets; i++){
jpayne@68: 			String s=(String.format(Locale.ROOT, "%d\t%.4f%%\n", i, cumulative[i]*mult));
jpayne@68: 			System.out.print(s);
jpayne@68: 		}
jpayne@68: 	}
jpayne@68: 	
jpayne@68: 	int sum(int stats){
jpayne@68: 		int sum=0;
jpayne@68: 		while(stats>0){
jpayne@68: 			sum+=(stats&0x1F);
jpayne@68: 			stats>>>=5;
jpayne@68: 		}
jpayne@68: 		return sum;
jpayne@68: 	}
jpayne@68: 	
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	/*----------------         Inner Methods        ----------------*/
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	/*----------------            Fields            ----------------*/
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 
jpayne@68: 	/** Primary output file path */
jpayne@68: 	private String out1="stdout.txt";
jpayne@68: 	
jpayne@68: 	private int numStats=6;
jpayne@68: 	
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	/*----------------        Common Fields         ----------------*/
jpayne@68: 	/*--------------------------------------------------------------*/
jpayne@68: 	
jpayne@68: 	/** Print status messages to this output stream */
jpayne@68: 	private PrintStream outstream=System.err;
jpayne@68: 	/** Print verbose messages */
jpayne@68: 	public static boolean verbose=false;
jpayne@68: 	/** True if an error was encountered */
jpayne@68: 	public boolean errorState=false;
jpayne@68: 	/** Overwrite existing output files */
jpayne@68: 	private boolean overwrite=false;
jpayne@68: 	/** Append to existing output files */
jpayne@68: 	private boolean append=false;
jpayne@68: 	
jpayne@68: }