Mercurial > dive4elements > framework
view artifact-database/src/main/java/de/intevation/artifactdatabase/rest/Standalone.java @ 339:f6beb4ffcf23
Added accidentally ommitted ChangeLog entry for last commit (cosmetics).
artifacts/trunk@2914 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Mon, 10 Oct 2011 07:40:49 +0000 |
parents | d52947ce8629 |
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/* * Copyright (c) 2010 by Intevation GmbH * * This program is free software under the LGPL (>=v2.1) * Read the file LGPL.txt coming with the software for details * or visit http://www.gnu.org/licenses/ if it does not exist. */ package de.intevation.artifactdatabase.rest; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.artifacts.ArtifactDatabase; import org.apache.log4j.Logger; import org.restlet.Component; import org.restlet.Server; import org.restlet.data.Protocol; import org.w3c.dom.Document; /** * Starts an HTTP server bound to a RestApp. * The server (binding interface and port) is configure via the * global configuration. * * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a> */ public class Standalone implements HTTPServer { private static Logger logger = Logger.getLogger(Standalone.class); /** * XPath to figure out the port where to listen from the * global configuration. */ public static final String REST_PORT = "/artifact-database/rest-server/port/text()"; /** * XPath to figure out from global configuration * which network interface to use to bind the HTTP server. */ public static final String LISTEN_INTERFACE = "/artifact-database/rest-server/listen/text()"; /** * The default port of the HTTP server: 8181 */ public static final int DEFAULT_PORT = 8181; public static final String MAX_THREADS = "/artifact-database/rest-server/max-threads/text()"; public static final String MAX_THREADS_DEFAULT = "1024"; protected int port; protected String listen; protected String maxThreads; public Standalone() { } @Override public void setup(Document document) { String portString = XMLUtils.xpathString(document, REST_PORT, null); port = DEFAULT_PORT; if (portString != null) { try { port = Integer.parseInt(portString); if (port < 0) { throw new NumberFormatException(); } } catch (NumberFormatException nfe) { logger.error("rest port is not a positive integer value.", nfe); return; } } listen = XMLUtils.xpathString(document, LISTEN_INTERFACE, null); maxThreads = XMLUtils.xpathString(document, MAX_THREADS, null); } protected Server createServer() { return listen != null && listen.length() > 0 ? new Server(Protocol.HTTP, listen, port) : new Server(Protocol.HTTP, port); } protected void logServerStart() { logger.info("Starting " + getClass().getName() + " HTTP server on " + (listen != null ? listen : "*") + ":" + port); } /** * Builds a RestApp wrapped around the given artifact database, * and bind this application to HTTP server. The HTTP server * is configured by the global configuration. If no port is * given by the configuration the default port is used. If * no interface is given the HTTP server is reachable from * all interfaces. * @param db The artifact database to be exposed via the * REST application. */ @Override public void startAsServer(ArtifactDatabase db) { RestApp app = new RestApp(db); Component component = new Component(); Server server = createServer(); component.getServers().add(server); server.getContext().getParameters().add( "maxThreads", maxThreads != null && maxThreads.length() > 0 ? maxThreads : MAX_THREADS_DEFAULT); component.getDefaultHost().attach(app); logServerStart(); try { component.start(); } catch (Exception e) { logger.error(e.getLocalizedMessage(), e); } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :