[ONOS-5599] Store meter features into MeterStore

Change-Id: I22f7366b87cad6fc706b6ff7b0ccff1a0e85ad6a
diff --git a/core/api/src/main/java/org/onosproject/net/meter/MeterFeatures.java b/core/api/src/main/java/org/onosproject/net/meter/MeterFeatures.java
new file mode 100644
index 0000000..1b8e869
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/meter/MeterFeatures.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright 2015-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.net.meter;
+
+import org.onosproject.net.DeviceId;
+
+import java.util.Set;
+
+/**
+ * Meter Features of a device.
+ */
+public interface MeterFeatures {
+
+    /**
+     * Return the device id to which this meter features apply.
+     *
+     * @return the device id
+     */
+    DeviceId deviceId();
+
+    /**
+     * Returns the maximum number of meters accepted by the device.
+     *
+     * @return the maximum meter value.
+     */
+    long maxMeter();
+
+    /**
+     * Returns band types supported.
+     *
+     * @return the band types supported.
+     */
+    Set<Band.Type> bandTypes();
+
+    /**
+     * Returns unit types available for meters.
+     *
+     * @return the unit types available.
+     */
+    Set<Meter.Unit> unitTypes();
+
+    /**
+     * Returns if burst size is available.
+     *
+     * @return burst availability
+     */
+    boolean isBurstSupported();
+
+    /**
+     * Returns if statistics collection is available.
+     *
+     * @return statistics availability
+     */
+    boolean isStatsSupported();
+
+    /**
+     * Returns the maximum bands per meter.
+     *
+     * @return the max bands value
+     */
+    short maxBands();
+
+    /**
+     * Returns the maximum colors value for DiffServ operation.
+     *
+     * @return the maximum colors value.
+     */
+    short maxColor();
+
+    /**
+     * A meter features builder.
+     */
+    interface Builder {
+        /**
+         * Assigns the target device for this meter features.
+         *
+         * @param deviceId a device id
+         * @return this builder
+         */
+        Builder forDevice(DeviceId deviceId);
+
+        /**
+         * Assigns the max meters value for this meter features.
+         *
+         * @param maxMeter the maximum meters available
+         * @return this builder
+         */
+        Builder withMaxMeters(long maxMeter);
+
+        /**
+         * Assigns the max bands value for this meter features.
+         *
+         * @param maxBands the maximum bands available.
+         * @return this builder
+         */
+        Builder withMaxBands(short maxBands);
+
+        /**
+         * Assigns the max colors value for this meter features.
+         *
+         * @param maxColors the maximum colors available.
+         * @return this builder
+         */
+        Builder withMaxColors(short maxColors);
+
+        /**
+         * Assigns the band types for this meter features.
+         *
+         * @param types the band types available.
+         * @return this builder
+         */
+        Builder withBandTypes(Set<Band.Type> types);
+
+        /**
+         * Assigns the capabilities for this meter features.
+         *
+         * @param units the units available
+         * @return this
+         */
+        Builder withUnits(Set<Meter.Unit> units);
+
+        /**
+         * Assigns the burst capabilities.
+         *
+         * @param hasBurst if the burst is supported
+         * @return this builder
+         */
+        Builder hasBurst(boolean hasBurst);
+
+        /**
+         * Assigns the stats capabilities.
+         *
+         * @param hasStats if the statistics are supported
+         * @return this builder
+         */
+        Builder hasStats(boolean hasStats);
+
+        /**
+         * Builds the Meter Features based on the specified parameters.
+         *
+         * @return the meter features
+         */
+        MeterFeatures build();
+    }
+}