org.paxle.parser.sitemap.impl.PingServlet.java Source code

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Here is the source code for org.paxle.parser.sitemap.impl.PingServlet.java

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/**
 * This file is part of the Paxle project.
 * Visit http://www.paxle.net for more information.
 * Copyright 2007-2010 the original author or authors.
 *
 * Licensed under the terms of the Common Public License 1.0 ("CPL 1.0").
 * Any use, reproduction or distribution of this program constitutes the recipient's acceptance of this agreement.
 * The full license text is available under http://www.opensource.org/licenses/cpl1.0.txt
 * or in the file LICENSE.txt in the root directory of the Paxle distribution.
 *
 * Unless required by applicable law or agreed to in writing, this software is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */

package org.paxle.parser.sitemap.impl;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.paxle.parser.sitemap.SitemapParser;

public class PingServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    private final Log logger = LogFactory.getLog(this.getClass());
    private final SitemapParser parser;

    public PingServlet(SitemapParser parser) {
        this.parser = parser;
    }

    @Override
    public void doGet(HttpServletRequest req, HttpServletResponse rsp) throws IOException {
        String uriString = null;
        try {
            uriString = req.getParameter("sitemap");
            if (uriString == null || uriString.length() == 0) {
                rsp.setStatus(401);
                return;
            }

            // parsing the URI
            URI uri = new URI(uriString);

            // TODO downloading and parsing the sitemap
            // TODO: create a new crawling profile
            // TODO: whould we register as data provider?

        } catch (URISyntaxException e) {
            this.logger.error(String.format("Invalid syntax: %s", uriString));
            rsp.setStatus(400);
            return;
        } catch (Throwable e) {
            this.logger.error(String.format("Unexpected '%s' while triggering sitemap parser for URI '%s': %s",
                    e.getClass().getName(), uriString, e.getMessage()));
            rsp.setStatus(401);
            return;
        }
    }
}