Initial import of CFM and SOAM api

Change-Id: Icf5cc2d5fb34b75460e80e8cced0d70265bcd33b
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/DefaultRemoteMepEntry.java b/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/DefaultRemoteMepEntry.java
new file mode 100644
index 0000000..377ddde
--- /dev/null
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/DefaultRemoteMepEntry.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2017-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.incubator.net.l2monitoring.cfm;
+
+import java.time.Duration;
+
+import org.onlab.packet.MacAddress;
+import org.onosproject.incubator.net.l2monitoring.cfm.SenderIdTlv.SenderIdTlvType;
+import org.onosproject.incubator.net.l2monitoring.cfm.identifier.MepId;
+import org.onosproject.incubator.net.l2monitoring.cfm.service.CfmConfigException;
+
+/**
+ * The default implementation of {@link org.onosproject.incubator.net.l2monitoring.cfm.RemoteMepEntry}.
+ */
+public class DefaultRemoteMepEntry implements RemoteMepEntry {
+
+    private final MepId remoteMepId;
+    private final RemoteMepState state;
+    private final Duration failedOrOkTime;
+    private final MacAddress macAddress;
+    private final boolean rdi;
+    private final PortStatusTlvType portStatusTlvType;
+    private final InterfaceStatusTlvType interfaceStatusTlvType;
+    private final SenderIdTlvType senderIdTlvType;
+
+    protected DefaultRemoteMepEntry(DefaultRemoteMepEntryBuilder rmepBuilder) {
+        this.remoteMepId = rmepBuilder.remoteMepId;
+        this.state = rmepBuilder.state;
+        this.failedOrOkTime = rmepBuilder.failedOrOkTime;
+        this.macAddress = rmepBuilder.macAddress;
+        this.rdi = rmepBuilder.rdi;
+        this.portStatusTlvType = rmepBuilder.portStatusTlvType;
+        this.interfaceStatusTlvType = rmepBuilder.interfaceStatusTlvType;
+        this.senderIdTlvType = rmepBuilder.senderIdTlvType;
+    }
+
+    @Override
+    public MepId remoteMepId() {
+        return this.remoteMepId;
+    }
+
+    @Override
+    public RemoteMepState state() {
+        return this.state;
+    }
+
+    @Override
+    public Duration failedOrOkTime() {
+        return failedOrOkTime;
+    }
+
+    @Override
+    public MacAddress macAddress() {
+        return macAddress;
+    }
+
+    @Override
+    public boolean rdi() {
+        return rdi;
+    }
+
+    @Override
+    public PortStatusTlvType portStatusTlvType() {
+        return portStatusTlvType;
+    }
+
+    @Override
+    public InterfaceStatusTlvType interfaceStatusTlvType() {
+        return interfaceStatusTlvType;
+    }
+
+    @Override
+    public SenderIdTlvType senderIdTlvType() {
+        return senderIdTlvType;
+    }
+
+    public static RemoteMepEntryBuilder builder(
+            MepId remoteMepId, RemoteMepState state) throws CfmConfigException {
+        return new DefaultRemoteMepEntryBuilder(remoteMepId, state);
+    }
+
+    private static class DefaultRemoteMepEntryBuilder implements RemoteMepEntryBuilder {
+        private final MepId remoteMepId;
+        private final RemoteMepState state;
+        private Duration failedOrOkTime;
+        private MacAddress macAddress;
+        private boolean rdi;
+        private PortStatusTlvType portStatusTlvType;
+        private InterfaceStatusTlvType interfaceStatusTlvType;
+        private SenderIdTlvType senderIdTlvType;
+
+        protected DefaultRemoteMepEntryBuilder(MepId remoteMepId,
+                                            RemoteMepState state) throws CfmConfigException {
+            if (remoteMepId == null) {
+                throw new CfmConfigException("remoteMepId is null");
+            } else if (state == null) {
+                throw new CfmConfigException("state is null");
+            }
+            this.remoteMepId = remoteMepId;
+            this.state = state;
+        }
+
+        @Override
+        public RemoteMepEntryBuilder failedOrOkTime(Duration failedOrOkTime) {
+            this.failedOrOkTime = failedOrOkTime;
+            return this;
+        }
+
+        @Override
+        public RemoteMepEntryBuilder macAddress(MacAddress macAddress) {
+            this.macAddress = macAddress;
+            return this;
+        }
+
+        @Override
+        public RemoteMepEntryBuilder rdi(boolean rdi) {
+            this.rdi = rdi;
+            return this;
+        }
+
+        @Override
+        public RemoteMepEntryBuilder portStatusTlvType(PortStatusTlvType portStatusTlvType) {
+            this.portStatusTlvType = portStatusTlvType;
+            return this;
+        }
+
+        @Override
+        public RemoteMepEntryBuilder interfaceStatusTlvType(
+                InterfaceStatusTlvType interfaceStatusTlvType) {
+            this.interfaceStatusTlvType = interfaceStatusTlvType;
+            return this;
+        }
+
+        @Override
+        public RemoteMepEntryBuilder senderIdTlvType(
+                SenderIdTlvType senderIdTlvType) {
+            this.senderIdTlvType = senderIdTlvType;
+            return this;
+        }
+
+        @Override
+        public RemoteMepEntry build() {
+            return new DefaultRemoteMepEntry(this);
+        }
+    }
+}