Utils.java

/**
 * Copyright 2012 Neurowork Consulting S.L.
 *
 * This file is part of eMobc.
 *
 * Utils.java
 * eMobc Android Framework
 *
 * eMobc is free software: you can redistribute it and/or modify
 * it under the terms of the Affero GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * eMobc 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 Public License for more details.
 *
 * You should have received a copy of the Affero GNU General Public License
 * along with eMobc. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package com.emobc.android.utils;

import java.io.InputStream;
import java.io.OutputStream;

/**
 * Utility class
 * @author Jorge E. Villaverde
 * @version 0.1
 * @since 0.1
 */
public class Utils {
	/**
	 * Copies the bytes from the InputStream to the OutputStream using a buffer.
	 * @param is InputStream to copy from.
	 * @param os OutputStream to copy to.
	 */
	public static void copyStream(InputStream is, OutputStream os) {
		final int buffer_size = 1024;
		try {
			byte[] bytes = new byte[buffer_size];
			for (;;) {
				int count = is.read(bytes, 0, buffer_size);
				if (count == -1)
					break;
				os.write(bytes, 0, count);
			}
		} catch (Exception ex) {
		}
	}
	
	public static boolean hasLength(String text) {
		if(text != null)
			return (text.trim().length() > 0);
		return false;
	}
	
	
	/**
	 * Returns true if the imageFile name starts with <code>http://</code> or <code>https://</code> 
	 * @param imageFile
	 * @return
	 */
	public static boolean isUrl(String imageFile){
		if (imageFile != null) {
			if(imageFile.startsWith("http://")||imageFile.startsWith("https://")){
				return true;
			}else{
				return false;
			}
		}
		return false;
	}	
}