+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
package jalview.httpserver;
+import jalview.bin.ApplicationSingletonProvider;
+import jalview.bin.ApplicationSingletonProvider.ApplicationSingletonI;
+import jalview.rest.RestHandler;
+
import java.net.BindException;
import java.net.URI;
import java.util.Collections;
* @author gmcarstairs
* @see http://eclipse.org/jetty/documentation/current/embedding-jetty.html
*/
-public class HttpServer
+public class HttpServer implements ApplicationSingletonI
{
+ /**
+ * Returns the singleton instance of this class.
+ *
+ * @return
+ * @throws BindException
+ */
+ public static HttpServer getInstance() throws BindException
+ {
+ synchronized (HttpServer.class)
+ {
+ return (HttpServer) ApplicationSingletonProvider.getInstance(HttpServer.class);
+ }
+ }
+
+ /**
+ * Private constructor to enforce use of singleton
+ *
+ * @throws BindException
+ * if no free port can be assigned
+ */
+ private HttpServer() throws BindException
+ {
+ startServer();
+
+ /*
+ * Provides a REST server by default; add more programmatically as required
+ */
+ registerHandler(RestHandler.getInstance());
+ }
+
+
/*
* 'context root' - actually just prefixed to the path for each handler for
* now - see registerHandler
private static final String JALVIEW_PATH = "jalview";
/*
- * Singleton instance of this server
- */
- private static HttpServer instance;
-
- /*
* The Http server
*/
private Server server;
*/
private URI contextRoot;
- /**
- * Returns the singleton instance of this class.
- *
- * @return
- * @throws BindException
- */
- public static HttpServer getInstance() throws BindException
- {
- synchronized (HttpServer.class)
- {
- if (instance == null) {
- instance = new HttpServer();
- }
- return instance;
- }
- }
-
- /**
- * Private constructor to enforce use of singleton
- *
- * @throws BindException
- * if no free port can be assigned
- */
- private HttpServer() throws BindException
- {
- startServer();
- }
/**
* Start the http server
server = new Server(tp);
// 2 selector threads to handle incoming connections
ServerConnector connector = new ServerConnector(server, 0, 2);
+ // restrict to localhost
+ connector.setHost("localhost");
server.addConnector(connector);
/*
// "HttpServer started with %d threads", server.getThreadPool()
// .getThreads()));
contextRoot = server.getURI();
- System.out.println("Jalview endpoint " + contextRoot);
} catch (Exception e)
{
- System.err.println("Error trying to start HttpServer: "
- + e.getMessage());
+ System.err.println(
+ "Error trying to start HttpServer: " + e.getMessage());
try
{
server.stop();
}
/**
- * Register a handler for the given path and returns its URI
+ * Register a handler for the given path and set its URI
*
- * @param path
- * a path below the context root (without leading or trailing
- * separator)
* @param handler
* @return
+ * @throws IllegalStateException
+ * if handler path has not been set
*/
- public String registerHandler(String path, AbstractRequestHandler handler)
+ public void registerHandler(AbstractRequestHandler handler)
{
+ String path = handler.getPath();
+ if (path == null)
+ {
+ throw new IllegalStateException(
+ "Must set handler path before registering handler");
+ }
+
// http://stackoverflow.com/questions/20043097/jetty-9-embedded-adding-handlers-during-runtime
ContextHandler ch = new ContextHandler();
ch.setAllowNullPathInfo(true);
ch.setContextPath("/" + JALVIEW_PATH + "/" + path);
ch.setResourceBase(".");
- ch.setClassLoader(Thread.currentThread()
- .getContextClassLoader());
+ ch.setClassLoader(Thread.currentThread().getContextClassLoader());
ch.setHandler(handler);
/*
ch.start();
} catch (Exception e)
{
- System.err.println("Error starting handler for " + path + ": "
- + e.getMessage());
+ System.err.println(
+ "Error starting handler for " + path + ": " + e.getMessage());
}
- return this.contextRoot + ch.getContextPath().substring(1);
+ handler.setUri(this.contextRoot + ch.getContextPath().substring(1));
+ System.out.println("Jalview " + handler.getName()
+ + " handler started on " + handler.getUri());
}
/**
*
* @param handler
*/
- public void removeHandler(Handler handler)
+ public void removeHandler(AbstractRequestHandler handler)
{
/*
* Have to use this cached lookup table since there is no method
{
contextHandlers.removeHandler(ch);
myHandlers.remove(handler);
+ System.out.println("Stopped Jalview " + handler.getName()
+ + " handler on " + handler.getUri());
}
}
}