Refactor: move telemetry config from componentCfg to configs.xml
1. Support to export the metrics to multiple targets
2. Add a set of properties to kafka config (key, topic, etc.)
3. Add distributedStore to manage telemetry configs
4. Add CLI to query stored telemetry configs
5. Add a set of telemetry loaders to import xml definitions
6. Add unit tests for telemetry cfg, xml cfg loader and dist store
7. Add missing javadoc for a set of implementation classes
Change-Id: I39480c9a6ac07357184d2e1094b9c9f4d36fd8b1
diff --git a/apps/openstacktelemetry/api/src/main/java/org/onosproject/openstacktelemetry/api/TelemetryConfigProvider.java b/apps/openstacktelemetry/api/src/main/java/org/onosproject/openstacktelemetry/api/TelemetryConfigProvider.java
new file mode 100644
index 0000000..57b148e
--- /dev/null
+++ b/apps/openstacktelemetry/api/src/main/java/org/onosproject/openstacktelemetry/api/TelemetryConfigProvider.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.openstacktelemetry.api;
+
+import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+
+import java.util.Set;
+
+/**
+ * Represents entity capable of providing telemetry configurations.
+ */
+public interface TelemetryConfigProvider {
+
+ /**
+ * Returns the set of telemetry configuration to be made available by this provider.
+ *
+ * @return set of telemetry configurations
+ */
+ Set<TelemetryConfig> getTelemetryConfigs();
+}