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5211
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jones
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/**
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* '$RCSfile$'
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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*
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* '$Author: Serhan AKIN $'
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* '$Date: 2009-06-13 13:28:21 +0300 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.restservice;
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import java.io.IOException;
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import javax.servlet.ServletConfig;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.apache.log4j.Logger;
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/**
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* Metacat implemantation of Earthgrid (Ecogrid) REST API as a servlet. In each request
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6267
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leinfelder
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* REST Servlet initialize a D1ResourceHandler object and then D1ResourceHandler object
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5211
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jones
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* handles with request and writes approriate response.
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*
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*/
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6267
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leinfelder
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public class D1RestServlet extends HttpServlet {
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5211
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jones
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6247
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leinfelder
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protected Logger logMetacat;
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6267
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leinfelder
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protected D1ResourceHandler handler;
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5211
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jones
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/**
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6247
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leinfelder
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* Subclasses should override this method to provide the appropriate handler subclass
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* @param request
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* @param response
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* @return
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* @throws ServletException
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* @throws IOException
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*/
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6267
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leinfelder
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protected D1ResourceHandler createHandler(HttpServletRequest request, HttpServletResponse response)
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6247
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leinfelder
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throws ServletException, IOException {
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6267
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leinfelder
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D1ResourceHandler handler = new D1ResourceHandler(getServletContext(), request, response);
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6247
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leinfelder
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return handler;
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}
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/**
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5211
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jones
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* Initalize servlet by setting logger
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*/
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@Override
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public void init(ServletConfig config) throws ServletException {
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logMetacat = Logger.getLogger(this.getClass());
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super.init(config);
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}
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/** Handle "GET" method requests from HTTP clients */
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@Override
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protected void doGet(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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System.out.println("HTTP Verb: GET");
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10202
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tao
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logMetacat.info("D1RestServlet.doGet - HTTP Verb: GET");
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6247
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leinfelder
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handler = createHandler(request, response);
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6267
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leinfelder
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handler.handle(D1ResourceHandler.GET);
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5211
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jones
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}
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/** Handle "POST" method requests from HTTP clients */
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@Override
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protected void doPost(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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System.out.println("HTTP Verb: POST");
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10202
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tao
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logMetacat.info("D1RestServlet.doPost - HTTP Verb: POST");
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6247
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leinfelder
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handler = createHandler(request, response);
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6267
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leinfelder
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handler.handle(D1ResourceHandler.POST);
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5211
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jones
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}
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/** Handle "DELETE" method requests from HTTP clients */
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@Override
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protected void doDelete(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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System.out.println("HTTP Verb: DELETE");
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10202
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tao
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logMetacat.info("D1RestServlet.doDelete - HTTP Verb: DELETE");
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6247
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leinfelder
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handler = createHandler(request, response);
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leinfelder
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handler.handle(D1ResourceHandler.DELETE);
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jones
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}
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/** Handle "PUT" method requests from HTTP clients */
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@Override
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protected void doPut(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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System.out.println("HTTP Verb: PUT");
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10202
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tao
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logMetacat.info("D1RestServlet.doPut - HTTP Verb: PUT");
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6247
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leinfelder
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handler = createHandler(request, response);
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6267
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leinfelder
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handler.handle(D1ResourceHandler.PUT);
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5211
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jones
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}
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5651
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berkley
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/** Handle "PUT" method requests from HTTP clients */
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@Override
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protected void doHead(HttpServletRequest request,
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HttpServletResponse response) throws ServletException, IOException {
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System.out.println("HTTP Verb: HEAD");
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10202
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tao
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logMetacat.info("D1RestServlet.doHead - HTTP Verb: HEAD");
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6247
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leinfelder
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handler = createHandler(request, response);
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6267
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leinfelder
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handler.handle(D1ResourceHandler.HEAD);
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5651
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berkley
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}
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5211
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jones
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}
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