package jp.funnything.competition.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.io.IOUtils;

public class QuestionReader {
    private final BufferedReader _reader;

    public QuestionReader( final File input ) {
        try {
            _reader = new BufferedReader( new FileReader( input ) );
        } catch ( final FileNotFoundException e ) {
            throw new RuntimeException( e );
        }
    }

    public void close() {
        IOUtils.closeQuietly( _reader );
    }

    public String read() {
        try {
            return _reader.readLine();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public BigDecimal[] readBigDecimals() {
        return readBigDecimals( " " );
    }

    public BigDecimal[] readBigDecimals( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigDecimal[] values = new BigDecimal[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigDecimal( tokens[ index ] );
        }

        return values;
    }

    public BigInteger[] readBigInts() {
        return readBigInts( " " );
    }

    public BigInteger[] readBigInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigInteger[] values = new BigInteger[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigInteger( tokens[ index ] );
        }

        return values;
    }

    public int readInt() {
        final int[] values = readInts();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public int[] readInts() {
        return readInts( " " );
    }

    public int[] readInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final int[] values = new int[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Integer.parseInt( tokens[ index ] );
        }

        return values;
    }

    public long readLong() {
        final long[] values = readLongs();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public long[] readLongs() {
        return readLongs( " " );
    }

    public long[] readLongs( final String separator ) {
        final String[] tokens = readTokens( separator );

        final long[] values = new long[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Long.parseLong( tokens[ index ] );
        }

        return values;
    }

    public String[] readTokens() {
        return readTokens( " " );
    }

    public String[] readTokens( final String separator ) {
        return read().split( separator );
    }
}

package de.at.codejam.gui;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.IOException;

import javax.swing.JFileChooser;

import de.at.codejam.AbstractCodeJamProblemSolver;
import de.at.codejam.util.CodeJamConstants;
import de.at.codejam.util.StatusListener;

public abstract class AbstractCodeJamClient<CASE> implements CodeJamConstants {

	private final CodeJamWindow window = new CodeJamWindow();
	private final CodeJamMainPanel mainPanel = new CodeJamMainPanel();

	private final StatusListener statusListener = mainPanel;

	protected abstract AbstractCodeJamProblemSolver<CASE> getTaskSolver();

	protected abstract String getAssignmentName();

	public void start() {

		if (!DEFAULT_CODE_JAM_DIRECTORY.exists()) {
			DEFAULT_CODE_JAM_DIRECTORY.mkdirs();
		}

		window.setAssignmentName(getAssignmentName());
		window.setContentPane(mainPanel);
		window.setEnabled(true);
		window.setVisible(true);

		final JFileChooser fileChooser = mainPanel.getFileChooser();
		fileChooser.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {

				if (e.getActionCommand().equals(JFileChooser.CANCEL_SELECTION)) {
					System.exit(0);
					return;
				}

				File inputFile = fileChooser.getSelectedFile();

				String inputFilename = inputFile.getAbsolutePath();

				int suffixIndex = inputFilename.lastIndexOf(".in");
				String neutralFilenamePart = inputFilename.substring(0,
						suffixIndex);
				String outputFilename = neutralFilenamePart + ".out";

				File outputFile = new File(outputFilename);

				System.out.println("Input: " + inputFilename + ", exists: "
						+ inputFile.exists());
				System.out.println("Output: " + outputFilename + ", exists: "
						+ outputFile.exists());

				if (outputFile.exists()) {
					outputFile.delete();
				}

				try {
					outputFile.createNewFile();
				} catch (IOException ioexception) {
					ioexception.printStackTrace();
				}

				if ((null != inputFile) && (inputFile.exists())) {
					AbstractCodeJamProblemSolver<CASE> taskSolver = getTaskSolver();
					taskSolver.addStatusListener(statusListener);
					taskSolver.solveInputFile(inputFile, outputFile);
				}
			}
		});
	}
}
