[ONOS-2393]--OVSDB- The implementation of the netty controller.
Change-Id: Ib24f5e6eb242a977ff6a1debdc22dcc09ff205c9
diff --git a/ovsdb/ctl/src/main/java/org/onosproject/ovsdb/controller/impl/OvsdbJsonRpcHandler.java b/ovsdb/ctl/src/main/java/org/onosproject/ovsdb/controller/impl/OvsdbJsonRpcHandler.java
new file mode 100644
index 0000000..37942c2
--- /dev/null
+++ b/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.info("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();
+ }
+}