Mercurial > dive4elements > framework
annotate artifact-database/src/main/java/de/intevation/artifactdatabase/rest/Standalone.java @ 262:5cab846eb2a3
flys/issue65: Set number of max. restlet threads to 1024 and make it configurable.
artifacts/trunk@1943 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Wed, 18 May 2011 10:10:11 +0000 |
parents | b2115f484edb |
children | c0fb96f88ad1 |
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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.artifacts.common.utils.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 import org.restlet.Server; |
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19 |
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20 import org.restlet.data.Protocol; |
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21 |
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22 /** |
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23 * Starts an HTTP server bound to a RestApp. |
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24 * The server (binding interface and port) is configure via the |
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25 * global configuration. |
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26 * |
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27 * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a> |
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28 */ |
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29 public class Standalone |
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30 { |
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31 private static Logger logger = Logger.getLogger(Standalone.class); |
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32 |
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33 /** |
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34 * XPath to figure out the port where to listen from the |
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35 * global configuration. |
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36 */ |
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37 public static final String REST_PORT = |
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38 "/artifact-database/rest-server/port/text()"; |
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39 |
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40 /** |
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41 * XPath to figure out from global configuration |
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42 * which network interface to use to bind the HTTP server. |
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43 */ |
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44 public static final String LISTEN_INTERFACE = |
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45 "/artifact-database/rest-server/listen/text()"; |
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46 |
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47 /** |
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48 * The default port of the HTTP server: 8181 |
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49 */ |
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50 public static final int DEFAULT_PORT = 8181; |
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51 |
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52 public static final String MAX_THREADS = |
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53 "/artifact-database/rest-server/max-threads/text()"; |
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54 |
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55 public static final String MAX_THREADS_DEFAULT = |
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56 "1024"; |
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57 |
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58 /** |
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59 * Builds a RestApp wrapped around the given artifact database, |
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60 * and bind this application to HTTP server. The HTTP server |
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61 * is configured by the global configuration. If no port is |
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62 * given by the configuration the default port is used. If |
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63 * no interface is given the HTTP server is reachable from |
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64 * all interfaces. |
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65 * @param db The artifact database to be exposed via the |
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66 * REST application. |
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67 */ |
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68 public static void startAsServer(ArtifactDatabase db) { |
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69 String portString = Config.getStringXPath(REST_PORT); |
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70 String listenString = Config.getStringXPath(LISTEN_INTERFACE); |
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71 String maxThreads = Config.getStringXPath(MAX_THREADS); |
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72 |
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73 int port = DEFAULT_PORT; |
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74 |
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75 if (portString != null) { |
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76 try { |
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77 port = Integer.parseInt(portString); |
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78 if (port < 0) { |
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79 throw new NumberFormatException(); |
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80 } |
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81 } |
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82 catch (NumberFormatException nfe) { |
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83 logger.error("rest port is not a positive integer value.", nfe); |
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84 return; |
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85 } |
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86 } |
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87 |
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88 RestApp app = new RestApp(db); |
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89 |
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90 Component component = new Component(); |
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91 |
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92 Server server = null; |
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93 |
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94 if (listenString != null) { |
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95 server = new Server(Protocol.HTTP, listenString, port); |
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96 } |
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97 else { |
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98 server = new Server(Protocol.HTTP, port); |
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99 } |
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100 |
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101 component.getServers().add(server); |
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102 |
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103 server.getContext().getParameters().add( |
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104 "maxThreads", maxThreads != null |
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105 ? maxThreads |
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106 : MAX_THREADS_DEFAULT); |
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107 |
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108 component.getDefaultHost().attach(app); |
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109 |
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110 logger.info("Starting rest HTTP server on " |
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111 + (listenString != null ? listenString : "*") |
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112 + ":" + port); |
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113 |
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114 try { |
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115 component.start(); |
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116 } |
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117 catch (Exception e) { |
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118 logger.error(e.getLocalizedMessage(), e); |
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119 } |
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120 } |
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121 } |
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122 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |