package org.opennaas.core.resources;

/*
 * #%L
 * OpenNaaS :: Core :: Resources
 * %%
 * Copyright (C) 2007 - 2014 Fundació Privada i2CAT, Internet i Innovació a Catalunya
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
 * #L%
 */

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

public class Utils {

	/**
	 * Utility method to read a file located at the given InputStream into a String.
	 * 
	 * @param stream
	 * @return
	 */
	public static String readStringFromFile(InputStream stream) {
		String answer = null;

		try {
			InputStreamReader streamReader = new InputStreamReader(stream);
			StringBuffer fileData = new StringBuffer(10000);
			BufferedReader reader = new BufferedReader(streamReader);
			char[] buf = new char[1024];
			int numRead = 0;
			while ((numRead = reader.read(buf)) != -1) {
				String readData = String.valueOf(buf, 0, numRead);
				fileData.append(readData);
				buf = new char[1024];
			}
			reader.close();
			answer = fileData.toString();
			fileData = null;
		} catch (Exception e) {
			e.printStackTrace();
		}

		return answer;
	}
}