[ONOS-4438] Add codecs for mastership REST API
Add codecs for RoleInfo, MastershipTerm and MastershipRole.
Change-Id: I1135c7fc0ed591446d6268229b54fda70391fdb9
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/MastershipRoleCodec.java b/core/common/src/main/java/org/onosproject/codec/impl/MastershipRoleCodec.java
new file mode 100644
index 0000000..9a7f7f9
--- /dev/null
+++ b/core/common/src/main/java/org/onosproject/codec/impl/MastershipRoleCodec.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2016-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.codec.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.net.MastershipRole;
+import org.slf4j.Logger;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+import static org.onosproject.net.MastershipRole.MASTER;
+import static org.onosproject.net.MastershipRole.NONE;
+import static org.onosproject.net.MastershipRole.STANDBY;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Codec for mastership role.
+ */
+public final class MastershipRoleCodec extends JsonCodec<MastershipRole> {
+ private final Logger log = getLogger(getClass());
+
+ // JSON field names
+ private static final String ROLE = "role";
+
+ private static final String MISSING_MEMBER_MESSAGE = " member is required in MastershipRole";
+
+ @Override
+ public ObjectNode encode(MastershipRole mastershipRole, CodecContext context) {
+ checkNotNull(mastershipRole, "MastershipRole cannot be null");
+ ObjectNode result = context.mapper().createObjectNode()
+ .put(ROLE, mastershipRole.name());
+ return result;
+ }
+
+ @Override
+ public MastershipRole decode(ObjectNode json, CodecContext context) {
+ if (json == null || !json.isObject()) {
+ return null;
+ }
+
+ String roleJson = nullIsIllegal(json.get(ROLE),
+ ROLE + MISSING_MEMBER_MESSAGE).asText();
+ MastershipRole mastershipRole;
+ switch (roleJson) {
+ case "MASTER":
+ mastershipRole = MASTER;
+ break;
+ case "STANDBY":
+ mastershipRole = STANDBY;
+ break;
+ case "NONE":
+ mastershipRole = NONE;
+ break;
+ default:
+ log.warn("The mastership role {} is not defined.", roleJson);
+ return null;
+ }
+
+ return mastershipRole;
+ }
+}