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/**
 * Copyright (c) 2005-2015 Zauber S.A. 
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ar.com.zauber.common.image.services;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;


/**
 * Trae imagenes de otros sitios, de forma segura.
 * 
 * @author Juan F. Codagnone
 * @since Jul 9, 2006
 */
public interface ImageRetriver {
    /**
     * Intenta bajar una imagen usando http desde otro host.
     * 
     * Si la imagen es mas grande maxBytes no la baja.
     * 
     * Si el content type no parece una imagen, no la baja.
     * 
     * @param url the url of the photo to download
     * @return an inputStream con la imagen 
     * @throws IOException in case of error
     */
    InputStream retrive(final URL url) throws IOException;
}