2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
23 import jalview.bin.ApplicationSingletonProvider;
24 import jalview.bin.ApplicationSingletonProvider.ApplicationSingletonI;
25 import jalview.httpserver.AbstractRequestHandler;
27 import java.io.IOException;
28 import java.io.PrintWriter;
29 import java.net.BindException;
31 import javax.servlet.http.HttpServletRequest;
32 import javax.servlet.http.HttpServletResponse;
35 * A simple handler to process (or delegate) HTTP requests on /jalview/rest.
37 public class RestHandler extends AbstractRequestHandler
38 implements ApplicationSingletonI
40 private static final String MY_PATH = "rest";
42 private static final String MY_NAME = "Rest";
45 * Returns the singleton instance of this class
48 * @throws BindException
50 public static RestHandler getInstance() throws BindException
52 synchronized (RestHandler.class)
54 return (RestHandler) ApplicationSingletonProvider.getInstance(RestHandler.class);
59 * Private constructor enforces use of singleton
61 * @throws BindException
63 private RestHandler() throws BindException
68 * We don't register the handler here - this is done as a special case in
69 * HttpServer initialisation; to do it here would invite an infinite loop of
70 * RestHandler/HttpServer constructor
75 * Handle a jalview/rest request
80 protected void processRequest(HttpServletRequest request,
81 HttpServletResponse response) throws IOException
84 * Currently just echoes the request; add helper classes as required to
87 final String queryString = request.getQueryString();
88 final String reply = "REST not yet implemented; received "
89 + request.getMethod() + ": " + request.getRequestURL()
90 + (queryString == null ? "" : "?" + queryString);
91 System.out.println(reply);
93 response.setHeader("Cache-Control", "no-cache/no-store");
94 response.setHeader("Content-type", "text/plain");
95 final PrintWriter writer = response.getWriter();
101 * Returns a display name for this service
104 public String getName()