71 lines
2.3 KiB
Java
71 lines
2.3 KiB
Java
import java.io.BufferedReader;
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import java.io.FileReader;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class ConfigReader {
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private static final Pattern LINE_PATTERN = Pattern.compile( "([^ =]+)[ =]?(.*)" );
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private static final Map<String, Object> DEFAULTS = new HashMap<String, Object>() {{
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put( "needspeeling", false );
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put( "seedsremoved", false );
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}};
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public static void main( final String[] args ) {
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System.out.println( parseFile( args[ 0 ] ) );
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}
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public static Map<String, Object> parseFile( final String fileName ) {
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final Map<String, Object> result = new HashMap<String, Object>( DEFAULTS );
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/*v*/ BufferedReader reader = null;
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try {
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reader = new BufferedReader( new FileReader( fileName ) );
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for ( String line; null != ( line = reader.readLine() ); ) {
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parseLine( line, result );
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}
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} catch ( final IOException x ) {
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throw new RuntimeException( "Oops: " + x, x );
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} finally {
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if ( null != reader ) try {
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reader.close();
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} catch ( final IOException x2 ) {
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System.err.println( "Could not close " + fileName + " - " + x2 );
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}
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}
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return result;
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}
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private static void parseLine( final String line, final Map<String, Object> map ) {
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if ( "".equals( line.trim() ) || line.startsWith( "#" ) || line.startsWith( ";" ) )
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return;
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final Matcher matcher = LINE_PATTERN.matcher( line );
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if ( ! matcher.matches() ) {
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System.err.println( "Bad config line: " + line );
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return;
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}
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final String key = matcher.group( 1 ).trim().toLowerCase();
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final String value = matcher.group( 2 ).trim();
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if ( "".equals( value ) ) {
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map.put( key, true );
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} else if ( -1 == value.indexOf( ',' ) ) {
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map.put( key, value );
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} else {
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final String[] values = value.split( "," );
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for ( int i = 0; i < values.length; i++ ) {
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values[ i ] = values[ i ].trim();
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}
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map.put( key, Arrays.asList( values ) );
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}
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}
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}
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