1 files changed, 131 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/ovsdb/ctl/src/main/java/org/onosproject/ovsdb/controller/impl/OvsdbJsonRpcHandler.java b/framework/src/onos/protocols/ovsdb/ctl/src/main/java/org/onosproject/ovsdb/controller/impl/OvsdbJsonRpcHandler.java
new file mode 100644
index 00000000..1956a1eb
--- /dev/null
+++ b/framework/src/onos/protocols/ovsdb/ctl/src/main/java/org/onosproject/ovsdb/controller/impl/OvsdbJsonRpcHandler.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.ovsdb.controller.impl;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+
+import org.onosproject.ovsdb.controller.OvsdbNodeId;
+import org.onosproject.ovsdb.controller.driver.OvsdbProviderService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.google.common.base.Strings;
+
+/**
+ * Channel handler deals with the node connection and dispatches
+ * ovsdb messages to the appropriate locations.
+ */
+public final class OvsdbJsonRpcHandler extends ChannelInboundHandlerAdapter {
+    protected static final Logger log = LoggerFactory
+            .getLogger(OvsdbJsonRpcHandler.class);
+    private OvsdbNodeId ovsdbNodeId;
+    private OvsdbProviderService ovsdbProviderService;
+
+    /**
+     * Constructor from a OvsdbNodeId ovsdbNodeId.
+     *
+     * @param ovsdbNodeId the ovsdbNodeId to use
+     */
+    public OvsdbJsonRpcHandler(OvsdbNodeId ovsdbNodeId) {
+        super();
+        this.ovsdbNodeId = ovsdbNodeId;
+    }
+
+    /**
+     * Gets the ovsdbProviderService instance.
+     *
+     * @return the instance of the ovsdbProviderService
+     */
+    public OvsdbProviderService getOvsdbProviderService() {
+        return ovsdbProviderService;
+    }
+
+    /**
+     * Sets the ovsdbProviderService instance.
+     *
+     * @param ovsdbNodeDriver the ovsdbNodeDriver to use
+     */
+    public void setOvsdbProviderService(OvsdbProviderService ovsdbNodeDriver) {
+        this.ovsdbProviderService = ovsdbNodeDriver;
+    }
+
+    /**
+     * Gets the OvsdbNodeId instance.
+     *
+     * @return the instance of the OvsdbNodeId
+     */
+    public OvsdbNodeId getNodeId() {
+        return ovsdbNodeId;
+    }
+
+    /**
+     * Sets the ovsdb node id.
+     *
+     * @param ovsdbNodeId the ovsdbNodeId to use
+     */
+    public void setNodeId(OvsdbNodeId ovsdbNodeId) {
+        this.ovsdbNodeId = ovsdbNodeId;
+    }
+
+    /**
+     * Processes an JsonNode message received on the channel.
+     *
+     * @param jsonNode The OvsdbJsonRpcHandler that received the message
+     */
+    private void processOvsdbMessage(JsonNode jsonNode) {
+
+        log.debug("Handle ovsdb message");
+
+        if (jsonNode.has("result")) {
+
+            log.debug("Handle ovsdb result");
+            ovsdbProviderService.processResult(jsonNode);
+
+        } else if (jsonNode.hasNonNull("method")) {
+
+            log.debug("Handle ovsdb request");
+            if (jsonNode.has("id")
+                    && !Strings.isNullOrEmpty(jsonNode.get("id").asText())) {
+                ovsdbProviderService.processRequest(jsonNode);
+            }
+
+        }
+        return;
+    }
+
+    @Override
+    public void channelRead(ChannelHandlerContext ctx, Object msg)
+            throws Exception {
+        log.debug("Receive message from ovsdb");
+        if (msg instanceof JsonNode) {
+            JsonNode jsonNode = (JsonNode) msg;
+            processOvsdbMessage(jsonNode);
+        }
+    }
+
+    @Override
+    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
+        ctx.flush();
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext context, Throwable cause) {
+        log.error("Exception inside channel handling pipeline.", cause);
+        context.close();
+    }
+}