Adding code for managing life cycle of SDC Client

* Adding init/start/stop methods in SDCReceptionHandler for managing lifecycle of SDC Client.
* Adding a handler status enum to hold all the possible status values.
* Adding test cases to cover code changes fully.

Change-Id: Ib6f370485ff330538bfada6030c592629ed3fd1c
Issue-ID: POLICY-956
Signed-off-by: ramverma <ram.krishna.verma@ericsson.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/handling/sdc/SdcReceptionHandlerStatus.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/handling/sdc/SdcReceptionHandlerStatus.java
new file mode 100644
index 00000000..d0e04c78
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/handling/sdc/SdcReceptionHandlerStatus.java
@@ -0,0 +1,49 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.distribution.reception.handling.sdc;
+
+/**
+ * Class to hold the possible values for status of {@link SdcReceptionHandler}.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
+ */
+public enum SdcReceptionHandlerStatus {
+
+    /**
+     * The SdcReceptionHandler is not alive.
+     */
+    STOPPED,
+
+    /**
+     * The SdcReceptionHandler is initialized but not started yet.
+     */
+    INIT,
+
+    /**
+     * The SdcReceptionHandler is initialized, started & ready to handle incoming notifications.
+     */
+    IDLE,
+
+    /**
+     * The SdcReceptionHandler is currently busy in handling notifications.
+     */
+    BUSY
+}