Remove restconf-nb-bierman02

[netconf.git] / restconf / restconf-nb-bierman02 / src / main / java / org / opendaylight / netconf / sal / streams / websockets / WebSocketServer.java

diff --git a/restconf/restconf-nb-bierman02/src/main/java/org/opendaylight/netconf/sal/streams/websockets/WebSocketServer.java b/restconf/restconf-nb-bierman02/src/main/java/org/opendaylight/netconf/sal/streams/websockets/WebSocketServer.java
deleted file mode 100644 (file)
index a295c54..0000000
--- a/restconf/restconf-nb-bierman02/src/main/java/org/opendaylight/netconf/sal/streams/websockets/WebSocketServer.java
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.netconf.sal.streams.websockets;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static com.google.common.base.Preconditions.checkState;
-import static java.util.Objects.requireNonNull;
-
-import io.netty.bootstrap.ServerBootstrap;
-import io.netty.channel.Channel;
-import io.netty.channel.EventLoopGroup;
-import io.netty.channel.nio.NioEventLoopGroup;
-import io.netty.channel.socket.nio.NioServerSocketChannel;
-import org.opendaylight.netconf.sal.streams.listeners.Notificator;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * {@link WebSocketServer} is the singleton responsible for starting and stopping the
- * web socket server.
- */
-public final class WebSocketServer implements Runnable {
-
-    private static final Logger LOG = LoggerFactory.getLogger(WebSocketServer.class);
-
-    private static final String DEFAULT_ADDRESS = "0.0.0.0";
-
-    private static WebSocketServer instance = null;
-
-    private final String address;
-    private final int port;
-
-    private EventLoopGroup bossGroup;
-    private EventLoopGroup workerGroup;
-
-
-    private WebSocketServer(final String address, final int port) {
-        this.address = address;
-        this.port = port;
-    }
-
-    /**
-     * Create singleton instance of {@link WebSocketServer}.
-     *
-     * @param port TCP port used for this server
-     * @return instance of {@link WebSocketServer}
-     */
-    private static WebSocketServer createInstance(final int port) {
-        instance = createInstance(DEFAULT_ADDRESS, port);
-        return instance;
-    }
-
-    public static WebSocketServer createInstance(final String address, final int port) {
-        checkState(instance == null, "createInstance() has already been called");
-        checkArgument(port >= 1024, "Privileged port (below 1024) is not allowed");
-
-        instance = new WebSocketServer(requireNonNull(address, "Address cannot be null."), port);
-        LOG.info("Created WebSocketServer on {}:{}", address, port);
-        return instance;
-    }
-
-    /**
-     * Get the websocket of TCP port.
-     *
-     * @return websocket TCP port
-     */
-    public int getPort() {
-        return port;
-    }
-
-    /**
-     * Get instance of {@link WebSocketServer} created by {@link #createInstance(int)}.
-     *
-     * @return instance of {@link WebSocketServer}
-     */
-    public static WebSocketServer getInstance() {
-        return requireNonNull(instance, "createInstance() must be called prior to getInstance()");
-    }
-
-    /**
-     * Get instance of {@link WebSocketServer} created by {@link #createInstance(int)}.
-     * If an instance doesnt exist create one with the provided fallback port.
-     *
-     * @return instance of {@link WebSocketServer}
-     */
-    public static WebSocketServer getInstance(final int fallbackPort) {
-        if (instance != null) {
-            return instance;
-        }
-
-        LOG.warn("No instance for WebSocketServer found, creating one with a fallback port: {}", fallbackPort);
-        return createInstance(fallbackPort);
-    }
-
-    /**
-     * Destroy the existing instance.
-     */
-    public static void destroyInstance() {
-        checkState(instance != null, "createInstance() must be called prior to destroyInstance()");
-
-        instance.stop();
-        instance = null;
-        LOG.info("Destroyed WebSocketServer.");
-    }
-
-    @Override
-    @SuppressWarnings("checkstyle:IllegalCatch")
-    public void run() {
-        bossGroup = new NioEventLoopGroup();
-        workerGroup = new NioEventLoopGroup();
-        try {
-            final ServerBootstrap serverBootstrap = new ServerBootstrap();
-            serverBootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
-                    .childHandler(new WebSocketServerInitializer());
-
-            final Channel channel = serverBootstrap.bind(address, port).sync().channel();
-            LOG.info("Web socket server started at address {}, port {}.", address, port);
-
-            channel.closeFuture().sync();
-        } catch (final InterruptedException e) {
-            LOG.error("Web socket server encountered an error during startup attempt on port {}", port, e);
-        } catch (Throwable throwable) {
-            // sync() re-throws exceptions declared as Throwable, so the compiler doesn't see them
-            LOG.error("Error while binding to address {}, port {}", address, port, throwable);
-            throw throwable;
-        } finally {
-            stop();
-        }
-    }
-
-    /**
-     * Stops the web socket server and removes all listeners.
-     */
-    private void stop() {
-        LOG.info("Stopping the web socket server instance on port {}", port);
-        Notificator.removeAllListeners();
-        if (bossGroup != null) {
-            bossGroup.shutdownGracefully();
-            bossGroup = null;
-        }
-        if (workerGroup != null) {
-            workerGroup.shutdownGracefully();
-            workerGroup = null;
-        }
-    }
-
-}