[Emu][ONOS-2593, ONOS-2594] BGP SBI controller and session handler
Change-Id: Ia95717ff173b2e3e1198bdd0fafef7cb0aa8f734
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPMessage.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPMessage.java
new file mode 100644
index 0000000..a5d8154
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPMessage.java
@@ -0,0 +1,92 @@
+/*
+ * 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.bgpio.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BGPParseException;
+import org.onosproject.bgpio.types.BGPHeader;
+
+/**
+ * Abstraction of an entity providing BGP Messages.
+ */
+public interface BGPMessage extends Writeable {
+ /**
+ * Returns BGP Header of BGP Message.
+ *
+ * @return BGP Header of BGP Message
+ */
+ BGPHeader getHeader();
+
+ /**
+ * Returns version of BGP Message.
+ *
+ * @return version of BGP Message
+ */
+ BGPVersion getVersion();
+
+ /**
+ * Returns BGP Type of BGP Message.
+ *
+ * @return BGP Type of BGP Message
+ */
+ BGPType getType();
+
+ @Override
+ void writeTo(ChannelBuffer cb) throws BGPParseException;
+
+ /**
+ * Builder interface with get and set functions to build BGP Message.
+ */
+ interface Builder {
+ /**
+ * Builds BGP Message.
+ *
+ * @return BGP Message
+ * @throws BGPParseException while building bgp message
+ */
+ BGPMessage build() throws BGPParseException;
+
+ /**
+ * Returns BGP Version of BGP Message.
+ *
+ * @return BGP Version of BGP Message
+ */
+ BGPVersion getVersion();
+
+ /**
+ * Returns BGP Type of BGP Message.
+ *
+ * @return BGP Type of BGP Message
+ */
+ BGPType getType();
+
+ /**
+ * Returns BGP Header of BGP Message.
+ *
+ * @return BGP Header of BGP Message
+ */
+ BGPHeader getHeader();
+
+ /**
+ * Sets BgpHeader and return its builder.
+ *
+ * @param bgpMsgHeader BGP Message Header
+ * @return builder by setting BGP message header
+ */
+ Builder setHeader(BGPHeader bgpMsgHeader);
+ }
+}
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diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPMessageReader.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPMessageReader.java
new file mode 100755
index 0000000..18b8f58
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPMessageReader.java
@@ -0,0 +1,36 @@
+/*
+ * 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.bgpio.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BGPParseException;
+import org.onosproject.bgpio.types.BGPHeader;
+
+/**
+ * Abstraction of an entity providing BGP Message Reader.
+ */
+public interface BGPMessageReader<T> {
+
+ /**
+ * Reads the Objects in the BGP Message and Returns BGP Message.
+ *
+ * @param cb Channel Buffer
+ * @param bgpHeader BGP message header
+ * @return BGP Message
+ * @throws BGPParseException while parsing BGP message.
+ */
+ T readFrom(ChannelBuffer cb, BGPHeader bgpHeader) throws BGPParseException;
+}
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diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPType.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPType.java
new file mode 100755
index 0000000..d334915
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPType.java
@@ -0,0 +1,45 @@
+/*
+ * 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.bgpio.protocol;
+
+/**
+ * Enum to Provide the Different types of BGP messages.
+ */
+public enum BGPType {
+
+ NONE(0), OPEN(1), UPDATE(2), NOTIFICATION(3), KEEP_ALIVE(4);
+
+ int value;
+
+ /**
+ * Assign value with the value val as the types of BGP message.
+ *
+ * @param val type of BGP message
+ */
+ BGPType(int val) {
+ value = val;
+ }
+
+ /**
+ * Returns value as type of BGP message.
+ *
+ * @return value type of BGP message
+ */
+ public byte getType() {
+ return (byte) value;
+ }
+}
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diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPVersion.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPVersion.java
new file mode 100755
index 0000000..97bc7dc
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BGPVersion.java
@@ -0,0 +1,45 @@
+/*
+ * 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.bgpio.protocol;
+
+/**
+ * Enum to provide BGP Message Version.
+ */
+public enum BGPVersion {
+
+ BGP_4(4);
+
+ public final int packetVersion;
+
+ /**
+ * Assign BGP PacketVersion with specified packetVersion.
+ *
+ * @param packetVersion version of BGP
+ */
+ BGPVersion(final int packetVersion) {
+ this.packetVersion = packetVersion;
+ }
+
+ /**
+ * Returns Packet version of BGP Message.
+ *
+ * @return packetVersion
+ */
+ public int getPacketVersion() {
+ return packetVersion;
+ }
+}
\ No newline at end of file
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/Writeable.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/Writeable.java
new file mode 100755
index 0000000..72df7f3
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/Writeable.java
@@ -0,0 +1,35 @@
+/*
+ * 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.bgpio.protocol;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BGPParseException;
+
+/**
+ * Abstraction of an entity providing functionality to write byte streams of
+ * Messages to channel buffer.
+ */
+public interface Writeable {
+
+ /**
+ * Writes byte streams of messages to channel buffer.
+ *
+ * @param cb channelBuffer
+ * @throws BGPParseException when error occurs while writing BGP message to channel buffer
+ */
+ void writeTo(ChannelBuffer cb) throws BGPParseException;
+}
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