/**
* EasySOA Registry
* Copyright 2011 Open Wide
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Contact : easysoa-dev@googlegroups.com
*/
package org.easysoa.registry.dbb;
import java.io.File;
import java.io.IOException;
import org.nuxeo.ecm.core.api.Blob;
public interface HttpDownloader {
/**
* Checks if the given URL is available.
* @return
*/
boolean isURLAvailable();
/**
* Downloads the page at the given URL.
* @return
* @throws Exception
*/
HttpDownloader download() throws Exception;
/**
* Checks if the page has been successfully downloaded.
* (note: you must explicitly call download() to fetch the page)
* @return
*/
boolean isDownloaded();
/**
* Returns the downloaded page as a file, or null if it has not been downloaded, or the export to a file failed.
* @return
* @throws IOException
*/
File getFile() throws IOException;
/**
* Returns the downloaded page as a blob (ready for storage in a Nuxeo document), or null if it has not been downloaded.
* @return
*/
Blob getBlob();
/**
* Returns the downloaded page as an array of bytes, or null if it has not been downloaded.
* @return
*/
byte[] getBytes();
/**
* Deletes all stored data (including the eventual file) if the page has been downloaded.
*/
void delete();
}