Initial implementation of kubevirt network with CRUD ops support

Change-Id: I6a366fcd301e67f62a74fb828eea1ac67f2a2128
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/DefaultKubevirtNetwork.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/DefaultKubevirtNetwork.java
new file mode 100644
index 0000000..dc221ab
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/DefaultKubevirtNetwork.java
@@ -0,0 +1,248 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.collect.ImmutableSet;
+import org.onlab.packet.IpAddress;
+
+import java.util.Objects;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.FLAT;
+
+/**
+ * Default implementation class of kubevirt network.
+ */
+public final class DefaultKubevirtNetwork implements KubevirtNetwork {
+
+    private static final String NOT_NULL_MSG = "Network % cannot be null";
+
+    private final String networkId;
+    private final Type type;
+    private final String name;
+    private final Integer mtu;
+    private final String segmentId;
+    private final IpAddress gatewayIp;
+    private final String cidr;
+    private final Set<KubevirtHostRoute> hostRouts;
+    private final KubevirtIpPool ipPool;
+
+    /**
+     * Default constructor.
+     *
+     * @param networkId         network identifier
+     * @param type              type of network
+     * @param name              network name
+     * @param mtu               network MTU
+     * @param segmentId         segment identifier
+     * @param gatewayIp         gateway IP address
+     * @param cidr              CIDR of network
+     * @param hostRouts         a set of host routes
+     * @param ipPool            IP pool
+     */
+    public DefaultKubevirtNetwork(String networkId, Type type, String name,
+                                  Integer mtu, String segmentId, IpAddress gatewayIp,
+                                  String cidr, Set<KubevirtHostRoute> hostRouts,
+                                  KubevirtIpPool ipPool) {
+        this.networkId = networkId;
+        this.type = type;
+        this.name = name;
+        this.mtu = mtu;
+        this.segmentId = segmentId;
+        this.gatewayIp = gatewayIp;
+        this.cidr = cidr;
+        this.hostRouts = hostRouts;
+        this.ipPool = ipPool;
+    }
+
+    @Override
+    public String networkId() {
+        return networkId;
+    }
+
+    @Override
+    public Type type() {
+        return type;
+    }
+
+    @Override
+    public String name() {
+        return name;
+    }
+
+    @Override
+    public Integer mtu() {
+        return mtu;
+    }
+
+    @Override
+    public String segmentId() {
+        return segmentId;
+    }
+
+    @Override
+    public IpAddress gatewayIp() {
+        return gatewayIp;
+    }
+
+    @Override
+    public String cidr() {
+        return cidr;
+    }
+
+    @Override
+    public Set<KubevirtHostRoute> hostRouts() {
+        return ImmutableSet.copyOf(hostRouts);
+    }
+
+    @Override
+    public KubevirtIpPool ipPool() {
+        return ipPool;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        DefaultKubevirtNetwork that = (DefaultKubevirtNetwork) o;
+        return networkId.equals(that.networkId) && type == that.type &&
+                name.equals(that.name) && mtu.equals(that.mtu) &&
+                gatewayIp.equals(that.gatewayIp) &&
+                cidr.equals(that.cidr) && hostRouts.equals(that.hostRouts) &&
+                ipPool.equals(that.ipPool);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(networkId, type, name, mtu, segmentId, gatewayIp,
+                cidr, hostRouts, ipPool);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("networkId", networkId)
+                .add("type", type)
+                .add("name", name)
+                .add("mtu", mtu)
+                .add("segmentId", segmentId)
+                .add("gatewayIp", gatewayIp)
+                .add("cidr", cidr)
+                .add("hostRouts", hostRouts)
+                .add("ipPool", ipPool)
+                .toString();
+    }
+
+    /**
+     * Returns new builder instance.
+     *
+     * @return kubevirt port builder
+     */
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static final class Builder implements KubevirtNetwork.Builder {
+
+        private String networkId;
+        private Type type;
+        private String name;
+        private Integer mtu;
+        private String segmentId;
+        private IpAddress gatewayIp;
+        private String cidr;
+        private Set<KubevirtHostRoute> hostRouts;
+        private KubevirtIpPool ipPool;
+
+        @Override
+        public KubevirtNetwork build() {
+            checkArgument(networkId != null, NOT_NULL_MSG, "networkId");
+            checkArgument(type != null, NOT_NULL_MSG, "type");
+            checkArgument(name != null, NOT_NULL_MSG, "name");
+            checkArgument(mtu != null, NOT_NULL_MSG, "mtu");
+            checkArgument(gatewayIp != null, NOT_NULL_MSG, "gatewayIp");
+            checkArgument(cidr != null, NOT_NULL_MSG, "cidr");
+            checkArgument(ipPool != null, NOT_NULL_MSG, "ipPool");
+
+            if (type != FLAT) {
+                checkArgument(segmentId != null, NOT_NULL_MSG, "segmentId");
+            }
+
+            return new DefaultKubevirtNetwork(networkId, type, name, mtu, segmentId,
+                    gatewayIp, cidr, hostRouts, ipPool);
+        }
+
+        @Override
+        public Builder networkId(String networkId) {
+            this.networkId = networkId;
+            return this;
+        }
+
+        @Override
+        public Builder name(String name) {
+            this.name = name;
+            return this;
+        }
+
+        @Override
+        public Builder type(Type type) {
+            this.type = type;
+            return this;
+        }
+
+        @Override
+        public Builder mtu(Integer mtu) {
+            this.mtu = mtu;
+            return this;
+        }
+
+        @Override
+        public Builder segmentId(String segmentId) {
+            this.segmentId = segmentId;
+            return this;
+        }
+
+        @Override
+        public Builder gatewayIp(IpAddress ipAddress) {
+            this.gatewayIp = ipAddress;
+            return this;
+        }
+
+        @Override
+        public Builder cidr(String cidr) {
+            this.cidr = cidr;
+            return this;
+        }
+
+        @Override
+        public Builder ipPool(KubevirtIpPool ipPool) {
+            this.ipPool = ipPool;
+            return this;
+        }
+
+        @Override
+        public Builder hostRoutes(Set<KubevirtHostRoute> hostRoutes) {
+            this.hostRouts = hostRoutes;
+            return this;
+        }
+    }
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtHostRoute.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtHostRoute.java
new file mode 100644
index 0000000..37cfc6b
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtHostRoute.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import com.google.common.base.MoreObjects;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.IpPrefix;
+
+import java.util.Objects;
+
+/**
+ * HostRoute class.
+ */
+public class KubevirtHostRoute {
+    private final IpPrefix destination;
+    private final IpAddress nexthop;
+
+    /**
+     * Default constructor.
+     *
+     * @param destination   destination CIDR
+     * @param nexthop       nexthop IP address
+     */
+    public KubevirtHostRoute(IpPrefix destination, IpAddress nexthop) {
+        this.destination = destination;
+        this.nexthop = nexthop;
+    }
+
+    /**
+     * Returns the destination CIDR.
+     *
+     * @return destination CIDR
+     */
+    public IpPrefix getDestination() {
+        return destination;
+    }
+
+    /**
+     * Returns the nexthop IP address.
+     *
+     * @return nexthop IP address
+     */
+    public IpAddress getNexthop() {
+        return nexthop;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        KubevirtHostRoute kubevirtHostRoute = (KubevirtHostRoute) o;
+        return destination.equals(kubevirtHostRoute.destination) &&
+                nexthop.equals(kubevirtHostRoute.nexthop);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(destination, nexthop);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("destination", destination)
+                .add("nexthop", nexthop)
+                .toString();
+    }
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtIpPool.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtIpPool.java
new file mode 100644
index 0000000..9b42b61
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtIpPool.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import com.google.common.base.MoreObjects;
+import org.onlab.packet.IpAddress;
+
+import java.util.Objects;
+
+/**
+ * Kubevirt IP Pool.
+ */
+public class KubevirtIpPool {
+
+    private final IpAddress start;
+    private final IpAddress end;
+
+    /**
+     * Default constructor.
+     *
+     * @param start     start address of IP pool
+     * @param end       end address of IP pool
+     */
+    public KubevirtIpPool(IpAddress start, IpAddress end) {
+        this.start = start;
+        this.end = end;
+    }
+
+    /**
+     * Returns the start address of IP pool.
+     *
+     * @return start address of IP pool
+     */
+    public IpAddress getStart() {
+        return start;
+    }
+
+    /**
+     * Returns the end address of IP pool.
+     *
+     * @return end address of IP pool
+     */
+    public IpAddress getEnd() {
+        return end;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        KubevirtIpPool that = (KubevirtIpPool) o;
+        return start.equals(that.start) && end.equals(that.end);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(start, end);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(this)
+                .add("start", start)
+                .add("end", end)
+                .toString();
+    }
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetwork.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetwork.java
new file mode 100644
index 0000000..5492c9f
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetwork.java
@@ -0,0 +1,200 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import org.onlab.packet.IpAddress;
+
+import java.util.Set;
+
+/**
+ * Representation of kubevirt network.
+ */
+public interface KubevirtNetwork {
+
+    /**
+     * Lists of network type.
+     */
+    enum Type {
+
+        /**
+         * VXLAN typed virtual network.
+         */
+        VXLAN,
+
+        /**
+         * GRE typed virtual network.
+         */
+        GRE,
+
+        /**
+         * GENEVE typed virtual network.
+         */
+        GENEVE,
+
+        /**
+         * FLAT typed provider network.
+         */
+        FLAT,
+    }
+
+    /**
+     * Returns the kubernetes network ID.
+     *
+     * @return kubernetes network ID
+     */
+    String networkId();
+
+    /**
+     * Returns kubernetes network type.
+     *
+     * @return kubernetes network type
+     */
+    Type type();
+
+    /**
+     * Returns kubernetes network name.
+     *
+     * @return kubernetes network name
+     */
+    String name();
+
+    /**
+     * Returns maximum transmission unit (MTU) value to address fragmentation.
+     *
+     * @return maximum transmission unit (MTU) value to address fragmentation
+     */
+    Integer mtu();
+
+    /**
+     * Returns segmentation ID.
+     *
+     * @return segmentation ID
+     */
+    String segmentId();
+
+    /**
+     * Returns gateway IP address.
+     *
+     * @return gateway IP address
+     */
+    IpAddress gatewayIp();
+
+    /**
+     * Returns network CIDR.
+     *
+     * @return network CIDR
+     */
+    String cidr();
+
+    /**
+     * Returns host routes.
+     *
+     * @return host routes
+     */
+    Set<KubevirtHostRoute> hostRouts();
+
+    /**
+     * Returns the IP pool.
+     *
+     * @return IP pool
+     */
+    KubevirtIpPool ipPool();
+
+    /**
+     * Builder of new network.
+     */
+    interface Builder {
+
+        /**
+         * Builds an immutable network instance.
+         *
+         * @return kubernetes network
+         */
+        KubevirtNetwork build();
+
+        /**
+         * Returns network builder with supplied network ID.
+         *
+         * @param networkId network ID
+         * @return network builder
+         */
+        Builder networkId(String networkId);
+
+        /**
+         * Returns network builder with supplied network name.
+         *
+         * @param name network name
+         * @return network builder
+         */
+        Builder name(String name);
+
+        /**
+         * Returns network builder with supplied network type.
+         *
+         * @param type network type
+         * @return network builder
+         */
+        Builder type(Type type);
+
+        /**
+         * Returns network builder with supplied MTU.
+         *
+         * @param mtu maximum transmission unit
+         * @return network builder
+         */
+        Builder mtu(Integer mtu);
+
+        /**
+         * Returns network builder with supplied segment ID.
+         *
+         * @param segmentId segment ID
+         * @return network builder
+         */
+        Builder segmentId(String segmentId);
+
+        /**
+         * Returns network builder with supplied gateway IP address.
+         *
+         * @param ipAddress gateway IP address
+         * @return network builder
+         */
+        Builder gatewayIp(IpAddress ipAddress);
+
+        /**
+         * Returns network builder with supplied network CIDR.
+         *
+         * @param cidr Classless Inter-Domain Routing
+         * @return network builder
+         */
+        Builder cidr(String cidr);
+
+        /**
+         * Returns the IP pool.
+         *
+         * @param ipPool IP pool
+         * @return network builder
+         */
+        Builder ipPool(KubevirtIpPool ipPool);
+
+        /**
+         * Returns host routes.
+         *
+         * @param hostRoutes host routes
+         * @return network builder
+         */
+        Builder hostRoutes(Set<KubevirtHostRoute> hostRoutes);
+    }
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkAdminService.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkAdminService.java
new file mode 100644
index 0000000..f0fa716
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkAdminService.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+public interface KubevirtNetworkAdminService extends KubevirtNetworkService {
+
+    /**
+     * Creates a kubevirt network with the given information.
+     *
+     * @param network the new network
+     */
+    void createNetwork(KubevirtNetwork network);
+
+    /**
+     * Updates the kubevirt network with the given information.
+     *
+     * @param network the updated network
+     */
+    void updateNetwork(KubevirtNetwork network);
+
+    /**
+     * Removes the network.
+     *
+     * @param networkId network identifier
+     */
+    void removeNetwork(String networkId);
+
+    void clear();
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkEvent.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkEvent.java
new file mode 100644
index 0000000..ee3487f
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkEvent.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import org.onosproject.event.AbstractEvent;
+
+/**
+ * Describes kubevirt network service event.
+ */
+public class KubevirtNetworkEvent extends AbstractEvent<KubevirtNetworkEvent.Type, KubevirtNetwork> {
+
+    public KubevirtNetworkEvent(Type type, KubevirtNetwork subject) {
+        super(type, subject);
+    }
+
+    /**
+     * kubevirt network events.
+     */
+    public enum Type {
+
+        /**
+         * Signifies that a new kubevirt network is created.
+         */
+        KUBEVIRT_NETWORK_CREATED,
+
+        /**
+         * Signifies that the kubevirt network is updated.
+         */
+        KUBEVIRT_NETWORK_UPDATED,
+
+        /**
+         * Signifies that the kubevirt network is removed.
+         */
+        KUBEVIRT_NETWORK_REMOVED,
+    }
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkListener.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkListener.java
new file mode 100644
index 0000000..5faaf9b
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkListener.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import org.onosproject.event.EventListener;
+
+/**
+ * Listener for kubevirt network event.
+ */
+public interface KubevirtNetworkListener extends EventListener<KubevirtNetworkEvent> {
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkService.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkService.java
new file mode 100644
index 0000000..574f365
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkService.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import org.onosproject.event.ListenerService;
+import org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type;
+
+import java.util.Set;
+
+/**
+ * Service for interacting with the inventory of kubevirt network.
+ */
+public interface KubevirtNetworkService
+        extends ListenerService<KubevirtNetworkEvent, KubevirtNetworkListener> {
+
+    /**
+     * Returns the kubevirt network with the supplied network identifier.
+     *
+     * @param networkId network identifier
+     * @return kubevirt network
+     */
+    KubevirtNetwork network(String networkId);
+
+    /**
+     * Returns all kubevirt networks registered in the service.
+     *
+     * @return set of kubevirt networks
+     */
+    Set<KubevirtNetwork> networks();
+
+    /**
+     * Returns the kubevirt networks with the given network type.
+     *
+     * @param type virtual network type
+     * @return set of kubevirt networks
+     */
+    Set<KubevirtNetwork> networks(Type type);
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkStore.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkStore.java
new file mode 100644
index 0000000..7452de8
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkStore.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import org.onosproject.store.Store;
+
+import java.util.Set;
+
+/**
+ * Manages inventory of kubevirt network states; not intended for direct use.
+ */
+public interface KubevirtNetworkStore
+        extends Store<KubevirtNetworkEvent, KubevirtNetworkStoreDelegate> {
+
+    /**
+     * Creates the new kubevirt network.
+     *
+     * @param network kubevirt network
+     */
+    void createNetwork(KubevirtNetwork network);
+
+    /**
+     * Update the kubevirt network.
+     *
+     * @param network kubevirt network
+     */
+    void updateNetwork(KubevirtNetwork network);
+
+    /**
+     * Removes the kubevirt network with the given network identifier.
+     *
+     * @param networkId network identifier
+     * @return removed kubevirt network; null if failed
+     */
+    KubevirtNetwork removeNetwork(String networkId);
+
+    /**
+     * Returns the kubevirt network with the given network identifier.
+     *
+     * @param networkId network identifier
+     * @return network; null if not found
+     */
+    KubevirtNetwork network(String networkId);
+
+    /**
+     * Returns all kubevirt networks.
+     *
+     * @return set of kubevirt networks
+     */
+    Set<KubevirtNetwork> networks();
+
+    /**
+     * Removes all kubevirt networks.
+     */
+    void clear();
+}
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkStoreDelegate.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkStoreDelegate.java
new file mode 100644
index 0000000..e375b6a
--- /dev/null
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/KubevirtNetworkStoreDelegate.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import org.onosproject.store.StoreDelegate;
+
+/**
+ * Kubevirt network store delegate abstraction.
+ */
+public interface KubevirtNetworkStoreDelegate extends StoreDelegate<KubevirtNetworkEvent> {
+}