/*
* Copyright (c) 2010 Lockheed Martin Corporation
*
* 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 org.eurekastreams.server.service.utility.http;
import java.io.IOException;
import java.util.Map;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
/**
* Gets a URL resource and returns it as an XML document.
*/
public interface HttpDocumentFetcher
{
/**
* Retrieves an XML document from a given URL.
*
* @param url
* The URL from which to get the document.
* @param httpHeaders
* HTTP headers to add to the request.
* @param proxyHost
* host name to use (if desired) for proxying http requests.
* @param proxyPort
* port for http proxy server.
* @param timeout
* the timeout period to wait for the request to return (in ms).
* @param domFactory
* Factory for creating document builders.
* @return The document.
* @throws IOException
* On error.
* @throws ParserConfigurationException
* On error.
* @throws SAXException
* On error.
*/
Document fetchDocument(final String url, final Map<String, String> httpHeaders, final String proxyHost,
final String proxyPort, final int timeout, final DocumentBuilderFactory domFactory) throws IOException,
ParserConfigurationException, SAXException;
}