1 files changed, 80 insertions, 0 deletions
diff --git a/framework/src/onos/core/common/src/main/java/org/onosproject/codec/impl/LinkCodec.java b/framework/src/onos/core/common/src/main/java/org/onosproject/codec/impl/LinkCodec.java
new file mode 100644
index 00000000..14ee9b7c
--- /dev/null
+++ b/framework/src/onos/core/common/src/main/java/org/onosproject/codec/impl/LinkCodec.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2014-2015 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.codec.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.net.Annotations;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.Link;
+import org.onosproject.net.Link.Type;
+import org.onosproject.net.provider.ProviderId;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * Link JSON codec.
+ */
+public final class LinkCodec extends AnnotatedCodec<Link> {
+
+    // JSON field names
+    private static final String SRC = "src";
+    private static final String DST = "dst";
+    private static final String TYPE = "type";
+    private static final String STATE = "state";
+
+    @Override
+    public ObjectNode encode(Link link, CodecContext context) {
+        checkNotNull(link, "Link cannot be null");
+        JsonCodec<ConnectPoint> codec = context.codec(ConnectPoint.class);
+        ObjectNode result = context.mapper().createObjectNode();
+        result.set(SRC, codec.encode(link.src(), context));
+        result.set(DST, codec.encode(link.dst(), context));
+        result.put(TYPE, link.type().toString());
+        if (link.state() != null) {
+            result.put(STATE, link.state().toString());
+        }
+        return annotate(result, link, context);
+    }
+
+
+    /**
+     * {@inheritDoc}
+     *
+     * Note: ProviderId is not part of JSON representation.
+     *       Returned object will have random ProviderId set.
+     */
+    @Override
+    public Link decode(ObjectNode json, CodecContext context) {
+        if (json == null || !json.isObject()) {
+            return null;
+        }
+
+        JsonCodec<ConnectPoint> codec = context.codec(ConnectPoint.class);
+        // TODO: add providerId to JSON if we need to recover them.
+        ProviderId pid = new ProviderId("json", "LinkCodec");
+
+        ConnectPoint src = codec.decode(get(json, SRC), context);
+        ConnectPoint dst = codec.decode(get(json, DST), context);
+        Type type = Type.valueOf(json.get(TYPE).asText());
+        Annotations annotations = extractAnnotations(json, context);
+
+        return new DefaultLink(pid, src, dst, type, annotations);
+    }
+}