Seed code for biermann restconf

Seed initial code from OpenDaylight netconf project for
Biermann draft version of restconf API

Issue-ID: CCSDK-3783
Signed-off-by: Dan Timoney <dtimoney@att.com>
Change-Id: I8a1ad2050ee7addbb480f01bd448922803bff31f

1 files changed, 130 insertions, 0 deletions

diff --git a/netconf/restconf/restconf-nb-bierman02/src/test/java/org/opendaylight/controller/sal/restconf/impl/websockets/client/WebSocketClient.java b/netconf/restconf/restconf-nb-bierman02/src/test/java/org/opendaylight/controller/sal/restconf/impl/websockets/client/WebSocketClient.java
new file mode 100644
index 0000000..a67a491
--- /dev/null
+++ b/netconf/restconf/restconf-nb-bierman02/src/test/java/org/opendaylight/controller/sal/restconf/impl/websockets/client/WebSocketClient.java
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2013 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.controller.sal.restconf.impl.websockets.client;
+
+import io.netty.bootstrap.Bootstrap;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.ChannelPipeline;
+import io.netty.channel.EventLoopGroup;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.handler.codec.http.HttpClientCodec;
+import io.netty.handler.codec.http.HttpObjectAggregator;
+import io.netty.handler.codec.http.websocketx.CloseWebSocketFrame;
+import io.netty.handler.codec.http.websocketx.PingWebSocketFrame;
+import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
+import io.netty.handler.codec.http.websocketx.WebSocketClientHandshakerFactory;
+import io.netty.handler.codec.http.websocketx.WebSocketVersion;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.URI;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class WebSocketClient {
+
+    private static final Logger LOG = LoggerFactory.getLogger(WebSocketClient.class);
+
+    private final URI uri;
+    private final Bootstrap bootstrap = new Bootstrap();
+    private final WebSocketClientHandler clientHandler;
+    private Channel clientChannel;
+    private final EventLoopGroup group = new NioEventLoopGroup();
+
+    public WebSocketClient(final URI uri, final IClientMessageCallback clientMessageCallback) {
+        this.uri = uri;
+        clientHandler = new WebSocketClientHandler(WebSocketClientHandshakerFactory.newHandshaker(uri,
+                WebSocketVersion.V13, null, false, null), clientMessageCallback);
+        // last null could be replaced with DefaultHttpHeaders
+        initialize();
+    }
+
+    private void initialize() {
+
+        String protocol = uri.getScheme();
+        if (!"ws".equals(protocol)) {
+            throw new IllegalArgumentException("Unsupported protocol: " + protocol);
+        }
+
+        bootstrap.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {
+            @Override
+            public void initChannel(final SocketChannel ch) throws Exception {
+                ChannelPipeline pipeline = ch.pipeline();
+                pipeline.addLast("http-codec", new HttpClientCodec());
+                pipeline.addLast("aggregator", new HttpObjectAggregator(8192));
+                pipeline.addLast("ws-handler", clientHandler);
+            }
+        });
+    }
+
+    public void connect() throws InterruptedException {
+        LOG.info("WebSocket Client connecting");
+        clientChannel = bootstrap.connect(uri.getHost(), uri.getPort()).sync().channel();
+        clientHandler.handshakeFuture().sync();
+    }
+
+    public void writeAndFlush(final String message) {
+        clientChannel.writeAndFlush(new TextWebSocketFrame(message));
+    }
+
+    public void writeAndFlush(final Object message) {
+        clientChannel.writeAndFlush(message);
+    }
+
+    public void ping() {
+        clientChannel.writeAndFlush(new PingWebSocketFrame(Unpooled.copiedBuffer(new byte[] { 1, 2, 3, 4, 5, 6 })));
+    }
+
+    public void close(final String reasonText) throws InterruptedException {
+        CloseWebSocketFrame closeWebSocketFrame = new CloseWebSocketFrame(1000, reasonText);
+        clientChannel.writeAndFlush(closeWebSocketFrame);
+
+        // WebSocketClientHandler will close the connection when the server
+        // responds to the CloseWebSocketFrame.
+        clientChannel.closeFuture().sync();
+        group.shutdownGracefully();
+    }
+
+    public static void main(final String[] args) throws Exception {
+        URI uri;
+        if (args.length > 0) {
+            uri = new URI(args[0]);
+        } else {
+            uri = new URI("http://192.168.1.101:8181/opendaylight-inventory:nodes");
+        }
+        IClientMessageCallback messageCallback = new ClientMessageCallback();
+        WebSocketClient webSocketClient = new WebSocketClient(uri, messageCallback);
+        webSocketClient.connect();
+
+        while (true) {
+            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+            String input = br.readLine();
+            if (input.equals("q")) {
+                LOG.info("Would you like to close stream? (Y = yes, empty = yes)\n");
+                input = br.readLine();
+                if (input.equals("yes") || input.isEmpty()) {
+                    webSocketClient.close("opendaylight-inventory:nodes");
+                    break;
+                }
+            }
+        }
+    }
+
+    private static class ClientMessageCallback implements IClientMessageCallback {
+        @Override
+        public void onMessageReceived(final Object message) {
+            if (message instanceof TextWebSocketFrame) {
+                LOG.info("received message {}" + ((TextWebSocketFrame) message).text());
+            }
+        }
+    }
+
+}