package com.xrath.benchmark.http;

import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;

public class RequestLoader {
	private File directory;
	
	public RequestLoader() {
		
	}

	public void setDirectory(File directory) {
		this.directory = directory;
	}

	public File getDirectory() {
		return directory;
	}
	
	@SuppressWarnings("unchecked")
	public List<Map<String, Object>> load() throws IOException {
		List<Map<String, Object>> ret = new ArrayList<Map<String, Object>>();
		
		File[] files = directory.listFiles();
		long l0 = System.currentTimeMillis();
		for(File f : files) {
			FileInputStream fis = new FileInputStream(f);
			while(true) {
				try {
					ObjectInputStream ois = new ObjectInputStream(fis);
					Map<String, Object> req = (Map<String, Object>)ois.readObject();
					ret.add(req);
				} catch( ClassNotFoundException e ) { 
				} catch( EOFException e ) {
					break;
				}
			}
			fis.close();
		}
		long l1 = System.currentTimeMillis();
		System.out.println( ret.size() + " http request loaded in " + (l1-l0) + "ms");
		l0 = System.currentTimeMillis();
		Collections.sort(ret, new Comparator<Map<String, Object>>() {
			@Override
			public int compare(Map<String, Object> o1, Map<String, Object> o2) {
				Long l1 = (Long)o1.get("TIMESTAMP");
				Long l2 = (Long)o2.get("TIMESTAMP");
				return (int)(l1-l2);
			}
		});
		l1 = System.currentTimeMillis();
		System.out.println( "sorted in " + (l1-l0) + "ms");
		return Collections.unmodifiableList(ret);
	}
	
	public static void main( String[] args ) throws Exception {
		RequestLoader rl = new RequestLoader();
		rl.setDirectory(new File("samples/20100107"));
		rl.load();
	}
}

package com.xrath.benchmark.http;

import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;

public class RequestLoader {
	private File directory;
	
	public RequestLoader() {
		
	}

	public void setDirectory(File directory) {
		this.directory = directory;
	}

	public File getDirectory() {
		return directory;
	}
	
	@SuppressWarnings("unchecked")
	public List<Map<String, Object>> load() throws IOException {
		List<Map<String, Object>> ret = new ArrayList<Map<String, Object>>();
		
		File[] files = directory.listFiles();
		long l0 = System.currentTimeMillis();
		for(File f : files) {
			FileInputStream fis = new FileInputStream(f);
			while(true) {
				try {
					ObjectInputStream ois = new ObjectInputStream(fis);
					Map<String, Object> req = (Map<String, Object>)ois.readObject();
					ret.add(req);
				} catch( ClassNotFoundException e ) { 
				} catch( EOFException e ) {
					break;
				}
			}
			fis.close();
		}
		long l1 = System.currentTimeMillis();
		System.out.println( ret.size() + " http requests were loaded in " + (l1-l0) + "ms");
		l0 = System.currentTimeMillis();
		Collections.sort(ret, new Comparator<Map<String, Object>>() {
			@Override
			public int compare(Map<String, Object> o1, Map<String, Object> o2) {
				Long l1 = (Long)o1.get("TIMESTAMP");
				Long l2 = (Long)o2.get("TIMESTAMP");
				return (int)(l1-l2);
			}
		});
		l1 = System.currentTimeMillis();
		System.out.println( "sorted in " + (l1-l0) + "ms");
		return Collections.unmodifiableList(ret);
	}
	
	public static void main( String[] args ) throws Exception {
		RequestLoader rl = new RequestLoader();
		rl.setDirectory(new File("samples/20100107"));
		rl.load();
	}
}

Fix grammar.