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annotate artifact-database/src/main/java/de/intevation/artifactdatabase/rest/Standalone.java @ 100:933bbc9fc11f

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Added license file and license headers. artifacts/trunk@1259 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 02 Nov 2010 17:23:36 +0000
parents e27cf9c84eb8
children 7fc0650f194c
rev   line source
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933bbc9fc11f Added license file and license headers.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.artifactdatabase.rest;
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10
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11 import de.intevation.artifactdatabase.Config;
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12
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13 import de.intevation.artifacts.ArtifactDatabase;
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14
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15 import org.apache.log4j.Logger;
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16
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17 import org.restlet.Component;
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18
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19 import org.restlet.data.Protocol;
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21 /**
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22 * Starts an HTTP server bound to a RestApp.
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23 * The server (binding interface and port) is configure via the
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24 * global configuration.
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25 *
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26 * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
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27 */
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28 public class Standalone
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29 {
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30 private static Logger logger = Logger.getLogger(Standalone.class);
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32 /**
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33 * XPath to figure out the port where to listen from the
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34 * global configuration.
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35 */
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36 public static final String REST_PORT =
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37 "/artifact-database/rest-server/port/text()";
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39 /**
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40 * XPath to figure out from global configuration
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41 * which network interface to use to bind the HTTP server.
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42 */
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43 public static final String LISTEN_INTERFACE =
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44 "/artifact-database/rest-server/listen/text()";
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45
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46 /**
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47 * The default port of the HTTP server: 8181
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48 */
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49 public static final int DEFAULT_PORT = 8181;
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51 /**
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52 * Builds a RestApp wrapped around the given artifact database,
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53 * and bind this application to HTTP server. The HTTP server
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54 * is configured by the global configuration. If no port is
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55 * given by the configuration the default port is used. If
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56 * no interface is given the HTTP server is reachable from
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57 * all interfaces.
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58 * @param db The artifact database to be exposed via the
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59 * REST application.
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60 */
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61 public static void startAsServer(ArtifactDatabase db) {
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62 String portString = Config.getStringXPath(REST_PORT);
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63 String listenString = Config.getStringXPath(LISTEN_INTERFACE);
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65 int port = DEFAULT_PORT;
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66
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67 if (portString != null) {
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68 try {
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69 port = Integer.parseInt(portString);
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70 if (port < 0) {
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71 throw new NumberFormatException();
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72 }
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73 }
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74 catch (NumberFormatException nfe) {
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75 logger.error("rest port is not a positive integer value.", nfe);
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76 return;
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77 }
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78 }
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79
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80 RestApp app = new RestApp(db);
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81
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82 Component component = new Component();
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83
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84 if (listenString != null) {
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85 component.getServers().add(Protocol.HTTP, listenString, port);
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86 }
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87 else {
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88 component.getServers().add(Protocol.HTTP, port);
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89 }
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91 component.getDefaultHost().attach(app);
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92
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93 logger.info("Starting rest HTTP server on "
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94 + (listenString != null ? listenString : "*")
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95 + ":" + port);
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96
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97 try {
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98 component.start();
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99 }
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100 catch (Exception e) {
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101 logger.error(e.getLocalizedMessage(), e);
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102 }
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103 }
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104 }
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105 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org