dirfilter.java

java实现的全文搜索引擎

/**
 * A strategy of reading the directory,which can filter some format files.
 */
package cn.edu.nju.software.ruse;

import java.io.File;
import java.io.FilenameFilter;
import java.util.regex.Pattern;

/**
 * @author spring
 * 
 */
public class DirFilter implements FilenameFilter{

	private Pattern pattern;
	
	public DirFilter(String regex) {
		pattern = Pattern.compile(regex);//TODO 处理正则表达式错误时产生的异常
	}
	
	public boolean accept(File dir, String name) {
		return pattern.matcher(name).matches();
	}

}