moving meter service to incubator and initial implementation of
meter manager.
Change-Id: I6ef0d9476b58d00b37f7ef156ac7bdacca20185b
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/meter/Meter.java b/incubator/api/src/main/java/org/onosproject/incubator/net/meter/Meter.java
new file mode 100644
index 0000000..5c59d51
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/meter/Meter.java
@@ -0,0 +1,155 @@
+/*
+ * Copyright 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.incubator.net.meter;
+
+import org.onosproject.core.ApplicationId;
+import org.onosproject.net.DeviceId;
+
+import java.util.Collection;
+import java.util.Optional;
+
+/**
+ * Represents a generalized meter to be deployed on a device.
+ */
+public interface Meter {
+
+ enum Unit {
+ /**
+ * Packets per second.
+ */
+ PKTS_PER_SEC,
+
+ /**
+ * Kilo bits per second.
+ */
+ KB_PER_SEC
+ }
+
+ /**
+ * The target device for this meter.
+ *
+ * @return a device id
+ */
+ DeviceId deviceId();
+
+ /**
+ * This meters id.
+ *
+ * @return a meter id
+ */
+ MeterId id();
+
+ /**
+ * The id of the application which created this meter.
+ *
+ * @return an application id
+ */
+ ApplicationId appId();
+
+ /**
+ * The unit used within this meter.
+ *
+ * @return
+ */
+ Unit unit();
+
+ /**
+ * Signals whether this meter applies to bursts only.
+ *
+ * @return a boolean
+ */
+ boolean isBurst();
+
+ /**
+ * The collection of bands to apply on the dataplane.
+ *
+ * @return a collection of bands.
+ */
+ Collection<Band> bands();
+
+ /**
+ * Obtains an optional context.
+ *
+ * @return optional; which will be empty if there is no context.
+ * Otherwise it will return the context.
+ */
+ Optional<MeterContext> context();
+
+ /**
+ * A meter builder.
+ */
+ interface Builder {
+
+ /**
+ * Assigns the target device for this meter.
+ *
+ * @param deviceId a device id
+ * @return this
+ */
+ Builder forDevice(DeviceId deviceId);
+
+ /**
+ * Assigns the id to this meter.
+ *
+ * @param id an integer
+ * @return this
+ */
+ Builder withId(int id);
+
+ /**
+ * Assigns the application that built this meter.
+ *
+ * @param appId an application id
+ * @return this
+ */
+ Builder fromApp(ApplicationId appId);
+
+ /**
+ * Assigns the @See Unit to use for this meter.
+ * Defaults to kb/s
+ *
+ * @param unit a unit
+ * @return this
+ */
+ Builder withUnit(Unit unit);
+
+ /**
+ * Sets this meter as applicable to burst traffic only.
+ * Defaults to false.
+ *
+ * @return this
+ */
+ Builder burst();
+
+ /**
+ * Assigns bands to this meter. There must be at least one band.
+ *
+ * @param bands a collection of bands
+ * @return this
+ */
+ Builder withBands(Collection<Band> bands);
+
+ Builder withContext(MeterContext context);
+
+ /**
+ * Builds the meter based on the specified parameters.
+ *
+ * @return a meter
+ */
+ Meter build();
+ }
+
+}