package gov.hhs.fha.nhinc.util;

import java.io.FileReader;

/**
 * String utilities...
 * 
 * @author Les Westberg
 */
public class StringUtil
{
    /**
     * This method reads the entire contents of a text file and returns the contents in 
     * a string variable.
     * 
     * @param sFileName The path and location of the text file.
     * @return The contents that was read in.
     */
    public static String readTextFile(String sFileName)
        throws UtilException
    {
        String sText = "";
        FileReader frTextFile = null;
        
        try
        {
            frTextFile = new FileReader(sFileName);
            char caBuf[] = new char[1024];
            int iLen = 0;
            StringBuffer sbText = new StringBuffer();
            while ((iLen = frTextFile.read(caBuf, 0, 1024)) != -1)
            {
                sbText.append(caBuf, 0, iLen);
            }
            
            sText = sbText.toString();
        }
        catch (Exception e)
        {
            String sErrorMessage = "Failed to read text file: " + sFileName + ". Error: " + e.getMessage();
            throw new UtilException(sErrorMessage, e);
        }
        finally
        {
            if (frTextFile != null)
            {
                try
                {
                    frTextFile.close();
                }
                catch (Exception e)
                {
                    
                }
            }
        }
        
        return sText;
    }
}