ConfigFileWriter.java

package greymerk.roguelike.config;


import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;


/**
 *	Allows configurations to be written to
 *	config files.
 */
public class ConfigFileWriter {


	/**
	 *	Writes a particular set of configurations to
	 *	a particular file according to a particular
	 *	representation.
	 *
	 *	\param [in] filename
	 *		The name of the file to which configuration
	 *		data shall be written.
	 *	\param [in] config
	 *		The configurations which shall be written to
	 *		the given file.
	 *	\param [in] writer
	 *		A ConfigurationParser which implements the
	 *		desired strategy for representing configuration
	 *		data in the file.
	 */
	public static void Write (String filename, ConfigurationProvider config, ConfigurationParser writer) throws Exception {
	
		//	Open file for writing
		FileOutputStream stream=new FileOutputStream(filename,true);
		
		//	Truncate file in case it already
		//	existed
		stream.getChannel().truncate(0);
		
		//	Create a writer
		BufferedWriter buffered=new BufferedWriter(
			new OutputStreamWriter(stream)
		);

		
		//	Write all configurations
		for (Configuration c : config) writer.Write(buffered,c);
		
		//	Close the stream and flush out
		//	all written configurations
		buffered.close();
	
	}


}