FileResourceReader.java

package org.faceletslite.imp;

import java.io.*;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.faceletslite.ResourceReader;


public class FileResourceReader implements ResourceReader
{
	private static final Logger log = Logger.getLogger(FileResourceReader.class.getName());

	private final String rootDir;
	private final String defaultExtension;

	public FileResourceReader(String rootDir, String defaultExtension)
	{
		this.rootDir = rootDir;
		if (!defaultExtension.startsWith(".")) {
			defaultExtension = "." + defaultExtension; 
		}
		this.defaultExtension = defaultExtension;
	}
	
	public String getRootDir() 
	{
		return rootDir;
	}
	
	public String getDefaultExtension() 
	{
		return defaultExtension;
	}

	/*
	private String removeDots(String filename) {
		filename = removeDots(filename, '/');
		filename = removeDots(filename, '\\');
		return filename;
	}
	
	private String removeDots(String filename, char pathSeparator)
	{
		
	}
	*/
	@Override
	public InputStream read(String uri) throws IOException {
		String extension = getDefaultExtension();
		if (extension!=null && !uri.contains(".")) {
			uri += extension; 
		}
		String dir = getRootDir();
		if (!dir.endsWith("/") && !uri.startsWith("/")) {
			uri = "/"+uri;
		}
		String filename = dir+uri;
		try
		{
			return new FileInputStream(filename);
		}
		catch (FileNotFoundException exc)
		{
			try
			{
				log.log(Level.SEVERE, "cannot find '"+filename+"', absolute path is "+new File(".").getAbsolutePath());
			}
			catch (Exception exc_) {
				// ignore
			}
			throw exc;
		}
	}
}