source: xssim/trunk/src/simulator/workload/reader/xmlJob/DirReader.java @ 104

package simulator.workload.reader.xmlJob;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FilenameFilter;
import java.io.IOException;

import simulator.workload.fileFilters.GrmsJobFileNameFilter;

/**
 * 
 * @author Marcin Krystek
 *
 */
public class DirReader implements WLFileAccess {

        protected File files[];
        protected int currentPosition;
        
        public DirReader(File dir){
                FilenameFilter fileNameFilter = new GrmsJobFileNameFilter();
                this.files = dir.listFiles(fileNameFilter);
                
                this.currentPosition = -1;
        }
        
        public String getFileName() {
                if(currentPosition >= this.files.length || currentPosition < 0)
                        return null;
                
                return this.files[currentPosition].getAbsolutePath();
        }

        public String read() throws IOException {
                currentPosition++;
                
                if(currentPosition >= files.length)
                        return null;
                
                BufferedReader reader = null;
                StringBuffer buffer = new StringBuffer();

                try {
                        reader = new BufferedReader(new FileReader(files[currentPosition]));
                        String line = null;
                        
                        while((line = reader.readLine()) != null){
                                buffer.append(line);
                        }
                        
                } finally{
                        reader.close();
                }
                
                return buffer.toString();
        }

        public void close() {
                
        }
}