Placed API and implementation into separate packages

Change-Id: If8a9223a7a225db1b2aa2d09738857af482736bc
diff --git a/apps/cordvtn/src/main/java/org/onosproject/cordvtn/api/CordService.java b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/api/CordService.java
new file mode 100644
index 0000000..b6fa9b0
--- /dev/null
+++ b/apps/cordvtn/src/main/java/org/onosproject/cordvtn/api/CordService.java
@@ -0,0 +1,177 @@
+/*
+ * 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.cordvtn.api;
+
+import com.google.common.base.MoreObjects;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.IpPrefix;
+import org.onosproject.net.Host;
+import org.onosproject.openstackinterface.OpenstackNetwork;
+import org.onosproject.openstackinterface.OpenstackSubnet;
+
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+public final class CordService {
+
+    public enum ServiceType {
+        PRIVATE,
+        PUBLIC,
+        MANAGEMENT
+    }
+
+    private final CordServiceId id;
+    private final long segmentationId;
+    private final ServiceType serviceType;
+    private final IpPrefix serviceIpRange;
+    private final IpAddress serviceIp;
+    private final Map<Host, IpAddress> hosts;
+    private final Set<CordServiceId> tenantServices;
+
+    /**
+     * Default constructor.
+     *
+     * @param vNet OpenStack network
+     * @param subnet OpenStack subnet
+     * @param hosts host and tunnel ip map
+     * @param tenantServices list of tenant service ids
+     */
+    public CordService(OpenstackNetwork vNet, OpenstackSubnet subnet,
+                       Map<Host, IpAddress> hosts, Set<CordServiceId> tenantServices) {
+        this.id = CordServiceId.of(vNet.id());
+        this.segmentationId = Long.parseLong(vNet.segmentId());
+        this.serviceType = getServiceType(vNet.name());
+        this.serviceIpRange = IpPrefix.valueOf(subnet.cidr());
+        this.serviceIp = IpAddress.valueOf(subnet.gatewayIp());
+        this.hosts = hosts;
+        this.tenantServices = tenantServices;
+    }
+
+    /**
+     * Returns service ID.
+     *
+     * @return service id
+     */
+    public CordServiceId id() {
+        return id;
+    }
+
+    /**
+     * Returns segmentation ID of this service.
+     *
+     * @return segmentation id
+     */
+    public long segmentationId() {
+        return segmentationId;
+    }
+
+    /**
+     * Returns service type.
+     *
+     * @return service type
+     */
+    public ServiceType serviceType() {
+        return serviceType;
+    }
+
+    /**
+     * Returns service IP range.
+     *
+     * @return CIDR
+     */
+    public IpPrefix serviceIpRange() {
+        return serviceIpRange;
+    }
+
+    /**
+     * Returns service IP address.
+     *
+     * @return ip address
+     */
+    public IpAddress serviceIp() {
+        return serviceIp;
+    }
+
+    /**
+     * Returns hosts associated with this service.
+     *
+     * @return list of hosts
+     */
+    public Map<Host, IpAddress> hosts() {
+        return hosts;
+    }
+
+    /**
+     * Returns tenant service IDs.
+     *
+     * @return list of tenant service id
+     */
+    public Set<CordServiceId> tenantServices() {
+        return tenantServices;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!(obj instanceof CordService)) {
+            return false;
+        }
+        final CordService other = (CordService) obj;
+        return Objects.equals(this.id, other.id);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("id", id)
+                .add("segmentationId", segmentationId)
+                .add("serviceType", serviceType)
+                .add("serviceIpRange", serviceIpRange)
+                .add("serviceIp", serviceIp)
+                .add("tenantServices", tenantServices)
+                .toString();
+    }
+
+    /**
+     * Returns network type from network name.
+     * It assumes that network name contains network type.
+     *
+     * @param netName network name
+     * @return network type, or PRIVATE if it doesn't match any type
+     */
+    private ServiceType getServiceType(String netName) {
+        checkNotNull(netName);
+
+        String name = netName.toUpperCase();
+        if (name.contains(ServiceType.PUBLIC.toString())) {
+            return ServiceType.PUBLIC;
+        } else if (name.contains(ServiceType.MANAGEMENT.toString())) {
+            return ServiceType.MANAGEMENT;
+        } else {
+            return ServiceType.PRIVATE;
+        }
+    }
+}