[ONOS-6169] Implement codec for segment and SrcDst ext addresses
Change-Id: Id928a3bb2dd914f8411cc6353bb41c5f05fb54a4
diff --git a/drivers/lisp/src/main/java/org/onosproject/drivers/lisp/extensions/codec/LispSrcDstAddressCodec.java b/drivers/lisp/src/main/java/org/onosproject/drivers/lisp/extensions/codec/LispSrcDstAddressCodec.java
new file mode 100644
index 0000000..cad5aec
--- /dev/null
+++ b/drivers/lisp/src/main/java/org/onosproject/drivers/lisp/extensions/codec/LispSrcDstAddressCodec.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2017-present 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.drivers.lisp.extensions.codec;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.drivers.lisp.extensions.LispSrcDstAddress;
+import org.onosproject.mapping.addresses.MappingAddress;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+
+/**
+ * LISP source destination address codec.
+ */
+public final class LispSrcDstAddressCodec extends JsonCodec<LispSrcDstAddress> {
+
+ protected static final String SRC_MASK_LENGTH = "srcMaskLength";
+ protected static final String DST_MASK_LENGTH = "dstMaskLength";
+ protected static final String SRC_PREFIX = "srcPrefix";
+ protected static final String DST_PREFIX = "dstPrefix";
+
+ private static final String MISSING_MEMBER_MESSAGE =
+ " member is required in LispSrcDstAddress";
+
+ @Override
+ public ObjectNode encode(LispSrcDstAddress address, CodecContext context) {
+ checkNotNull(address, "LispSrcDstAddress cannot be null");
+
+ final JsonCodec<MappingAddress> addressCodec =
+ context.codec(MappingAddress.class);
+
+ final ObjectNode result = context.mapper().createObjectNode()
+ .put(SRC_MASK_LENGTH, address.getSrcMaskLength())
+ .put(DST_MASK_LENGTH, address.getDstMaskLength());
+
+ if (address.getSrcPrefix() != null) {
+ ObjectNode srcPrefix = addressCodec.encode(address.getSrcPrefix(), context);
+ result.set(SRC_PREFIX, srcPrefix);
+ }
+
+ if (address.getDstPrefix() != null) {
+ ObjectNode dstPrefix = addressCodec.encode(address.getDstPrefix(), context);
+ result.set(DST_PREFIX, dstPrefix);
+ }
+
+ return result;
+ }
+
+ @Override
+ public LispSrcDstAddress decode(ObjectNode json, CodecContext context) {
+ if (json == null || !json.isObject()) {
+ return null;
+ }
+
+ byte srcMaskLength = (byte) nullIsIllegal(json.get(SRC_MASK_LENGTH),
+ SRC_MASK_LENGTH + MISSING_MEMBER_MESSAGE).asInt();
+ byte dstMaskLength = (byte) nullIsIllegal(json.get(DST_MASK_LENGTH),
+ DST_MASK_LENGTH + MISSING_MEMBER_MESSAGE).asInt();
+
+ final JsonCodec<MappingAddress> addressCodec =
+ context.codec(MappingAddress.class);
+
+ ObjectNode srcPrefixJson = get(json, SRC_PREFIX);
+ MappingAddress srcPrefix = null;
+
+ ObjectNode dstPrefixJson = get(json, DST_PREFIX);
+ MappingAddress dstPrefix = null;
+
+ if (srcPrefixJson != null) {
+ srcPrefix = addressCodec.decode(srcPrefixJson, context);
+ }
+
+ if (dstPrefixJson != null) {
+ dstPrefix = addressCodec.decode(dstPrefixJson, context);
+ }
+
+ return new LispSrcDstAddress.Builder()
+ .withSrcMaskLength(srcMaskLength)
+ .withDstMaskLength(dstMaskLength)
+ .withSrcPrefix(srcPrefix)
+ .withDstPrefix(dstPrefix)
+ .build();
+ }
+}