SSH netty handler

[controller.git] / opendaylight / netconf / netconf-util / src / main / java / org / opendaylight / controller / netconf / util / handler / ssh / virtualsocket / ChannelOutputStream.java

diff --git a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/handler/ssh/virtualsocket/ChannelOutputStream.java b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/handler/ssh/virtualsocket/ChannelOutputStream.java
new file mode 100644 (file)
index 0000000..b1314a6
--- /dev/null
+++ b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/handler/ssh/virtualsocket/ChannelOutputStream.java
@@ -0,0 +1,98 @@
+/*
+ * 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.netconf.util.handler.ssh.virtualsocket;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelOutboundHandler;
+import io.netty.channel.ChannelPromise;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.SocketAddress;
+
+/**
+ * Class provides {@link OutputStream) functionality to users of virtual socket.
+ */
+public class ChannelOutputStream extends OutputStream implements ChannelOutboundHandler {
+    private final Object lock = new Object();
+    private ByteBuf buff = Unpooled.buffer();
+    private ChannelHandlerContext ctx;
+
+    @Override
+    public void flush() throws IOException {
+        synchronized(lock) {
+            ctx.writeAndFlush(buff).awaitUninterruptibly();
+            buff = Unpooled.buffer();
+        }
+    }
+
+    @Override
+    public void write(int b) throws IOException {
+        synchronized(lock) {
+            buff.writeByte(b);
+        }
+    }
+
+    public void bind(ChannelHandlerContext ctx, SocketAddress localAddress,
+                     ChannelPromise promise) throws Exception {
+        ctx.bind(localAddress, promise);
+    }
+
+    public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress,
+                        SocketAddress localAddress, ChannelPromise promise)
+            throws Exception {
+        this.ctx = ctx;
+        ctx.connect(remoteAddress, localAddress, promise);
+    }
+
+    public void disconnect(ChannelHandlerContext ctx, ChannelPromise promise)
+            throws Exception {
+        ctx.disconnect(promise);
+    }
+
+    public void close(ChannelHandlerContext ctx, ChannelPromise promise)
+            throws Exception {
+        ctx.close(promise);
+    }
+
+    public void deregister(ChannelHandlerContext ctx, ChannelPromise channelPromise)
+            throws Exception {
+        ctx.deregister(channelPromise);
+    }
+
+    public void read(ChannelHandlerContext ctx)
+            throws Exception {
+        ctx.read();
+    }
+
+    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise)
+            throws Exception {
+        // pass
+    }
+
+    public void flush(ChannelHandlerContext ctx)
+            throws Exception {
+        // pass
+    }
+
+    public void handlerAdded(ChannelHandlerContext ctx)
+            throws Exception {
+    }
+
+    public void handlerRemoved(ChannelHandlerContext ctx)
+            throws Exception {
+    }
+
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
+            throws Exception {
+        ctx.fireExceptionCaught(cause);
+    }
+}