package fixjava;

public class StringUtils {

	/** Repeat the given string the requested number of times. */
	public static String repeat(String str, int numTimes) {
		StringBuilder buf = new StringBuilder(Math.max(0, str.length() * numTimes));
		for (int i = 0; i < numTimes; i++)
			buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the left hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padLeft(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(padChar);
		for (int i = 1, mi = bufSize - str.length(); i < mi; i++)
			buf.append(padChar);
		buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the right hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padRight(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(str);
		buf.append(padChar);
		while (buf.length() < bufSize)
			buf.append(padChar);
		return buf.toString();
	}

	/** Intern all strings in an array, skipping null elements. */
	public static String[] intern(String[] arr) {
		for (int i = 0; i < arr.length; i++)
			arr[i] = arr[i].intern();
		return arr;
	}

	/** Intern a string, ignoring null */
	public static String intern(String str) {
		return str == null ? null : str.intern();
	}

}

package com.google.codejam.recycle;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

/**
 *
 * Class to generate Test Report.
 * @author Sushant Deshpande
 */
public class OutputRecorder {

    /**
     * Method for generating Test Report.
     * @param testCases List<TestCase> list of test cases for report is to be generated.
     * @param outputFile String output file for writing TestReport.
     */
    public static void generateTestReport(final List<TestCase> testCases, final  String outputFile) {
        BufferedWriter writer = null;
        try {
            writer = new BufferedWriter(new PrintWriter(outputFile));
            for(TestCase testCase : testCases) {
                writer.write(testCase.printTestResult());
                writer.flush();
            }
            writer.flush();
        } catch(IOException ie) {
            System.out.println("Some error occured while generating test report " + ie.getMessage());
            System.out.println("Printing result to standard output");
            for(TestCase testCase : testCases) {
                System.out.println(testCase.printTestResult());
            }
        } finally {
            if(writer != null) {
                try {
                    writer.close();
                } catch(IOException ie) {
                    System.out.println("Some error occured while closing output stream");
                }
            }
        }
    }

}