[SEBA-593] Splitting dhcpl2relay app in implementation and api bundles

Change-Id: Ia9c060eeac3d74dc6829d774d32d288da0df203e
diff --git a/app/src/main/java/org/opencord/dhcpl2relay/impl/DhcpL2RelayAllocationsCommand.java b/app/src/main/java/org/opencord/dhcpl2relay/impl/DhcpL2RelayAllocationsCommand.java
new file mode 100644
index 0000000..adb0bf0
--- /dev/null
+++ b/app/src/main/java/org/opencord/dhcpl2relay/impl/DhcpL2RelayAllocationsCommand.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2016-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.opencord.dhcpl2relay.impl;
+
+import org.apache.karaf.shell.commands.Command;
+import org.onosproject.cli.AbstractShellCommand;
+
+/**
+ *  Shows the Successful DHCP allocations relayed by the dhcpl2relay.
+ */
+@Command(scope = "onos", name = "dhcpl2relay-allocations",
+        description = "Shows the Successful DHCP allocations relayed by the dhcpl2relay")
+public class DhcpL2RelayAllocationsCommand extends AbstractShellCommand {
+    @Override
+    protected void execute() {
+        DhcpL2Relay.allocationMap().forEach((key, value) -> {
+            print("SubscriberId=%s,ConnectPoint=%s,State=%s,MAC=%s,CircuitId=%s" +
+                            ",IP Allocated=%s,Allocation Timestamp=%s",
+                    key, value.location(), value.type(), value.macAddress().toString(), value.circuitId(),
+                    value.ipAddress().getIp4Address().toString(), value.allocationTime().toString());
+        });
+    }
+}