## mark a section (Learn more)

package javabot; import java.io.*; import java.util.*; /** * Simple parser for InfoBot factoid files * TODO: recursive loading of "factoids" dir * * This is actually a really crappy way of doing this, generating the database * from a flatfile at runtime, but it was the quickest thing I could think of. * Sue me. * * @author dydx */ public class Factoids { private static Map database; /** * Generate a small database of facts to be searchable by users in IRC * * This is actually a main feature of my bot, and I am pondering making * a recursive include for the .fact files, so that I could just enter * the location (directory) of several files and have it compile them * all into the database. * * Or maybe create a new instance of Factoids for every subject area? * Factoids sports = new Factoids( "sports.fact" ); * Factoids movies = new Factoids( "movies.fact" ); * etc etc etc * * then just create new regex based string searching to differentiate * * @param file */ Factoids( String file ) { try { String root = System.getProperty( "user.dir" );//get docroot String filename = root + File.separator + file; database = getDatabase( filename );//get our database! } catch( Exception e ) { System.err.println( "Please check the path to the .fact file to make sure it is correct." ); } } /** * Create a BufferedReader from given filepath * * @param filepath * @return */ private static BufferedReader getReader( String filepath ) { filepath = filepath.replace( '/', File.separatorChar ); try { BufferedReader reader = new BufferedReader( new FileReader( filepath) ); return reader; } catch( FileNotFoundException e ) { System.err.println( "File Not Found at: " + filepath ); return null; } } /** * Parse .fact files and create miniature database(HashMap) from it * * @param reader * @return */ private static Map getDatabase( String filepath ) { try { BufferedReader reader = getReader( filepath );//create this on a more local level Map<String, String> _database = new HashMap<String, String>();//our local database String line; while( ( line = reader.readLine() ) != null ) { String[] data = line.split( " => " );// .fact files are "key => value" _database.put( data[0], data[1] );//populate the database } return _database;//this will be referenced over to the main database } catch( NullPointerException e ) { //3 hours of recoding to try to figure out why i was getting a NullPointerException. System.err.println( "Check fact file for extraneous whitespace or newlines" ); //Turns out it was an issue with the .fact file i was using to test with return null; } catch( IOException e ) { System.err.println( "There was an issue generating the database" ); return null; } } /** * public accessible method for querying the database * * @param search * @return */ public String query( String search ) { String recordset = (String)database.get( search ); if( recordset != null ) return search + ": " + recordset; else return "Search Term \""+ search + "\" Not Found"; } }

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