Use openstack4j for OpenStack data model and rest client

Change-Id: I4eb52c3c82d847c442420d1287392fe9079bf699

@@ -18,7 +18,7 @@
         category="Traffic Steering" url="http://onosproject.org" title="CORD Virtual Tenant Network"
         featuresRepo="mvn:${project.groupId}/${project.artifactId}/${project.version}/xml/features"
         features="${project.artifactId}"
-        apps="org.onosproject.ovsdb-base,org.onosproject.openstackinterface,org.onosproject.dhcp">
+        apps="org.onosproject.ovsdb-base,org.onosproject.dhcp">
     <description>${project.description}</description>
     <artifact>mvn:${project.groupId}/onos-app-cordvtn/${project.version}</artifact>
 </app>

@@ -19,5 +19,6 @@
         <feature>onos-api</feature>
         <bundle>mvn:${project.groupId}/onos-app-cordvtn/${project.version}</bundle>
         <bundle>wrap:mvn:com.jcraft/jsch/0.1.53$Bundle-SymbolicName=jsch&amp;Bundle-Version=0.1.53</bundle>
+        <bundle>wrap:mvn:org.pacesys/openstack4j/2.11/jar/withdeps$Bundle-SymbolicName=openstack4j&amp;Bundle-Version=2.11</bundle>
     </feature>
 </features>

@@ -112,6 +112,21 @@
             <artifactId>jsch</artifactId>
             <version>0.1.53</version>
         </dependency>
+        <dependency>
+            <groupId>org.pacesys</groupId>
+            <artifactId>openstack4j-core</artifactId>
+            <version>2.11</version>
+        </dependency>
+        <dependency>
+            <groupId>org.pacesys.openstack4j.connectors</groupId>
+            <artifactId>openstack4j-http-connector</artifactId>
+            <version>2.11</version>
+        </dependency>
+        <dependency>
+            <groupId>org.pacesys.openstack4j.connectors</groupId>
+            <artifactId>openstack4j-httpclient</artifactId>
+            <version>2.11</version>
+        </dependency>
     </dependencies>
 
     <build>
@@ -131,8 +146,14 @@
                             ${project.groupId}.${project.artifactId}
                         </Bundle-SymbolicName>
                         <Import-Package>
+                            !org.apache.http.*,
                             *,org.glassfish.jersey.servlet
                         </Import-Package>
+                        <Embed-Dependency>
+                            openstack4j-core,
+                            openstack4j-http-connector,
+                            openstack4j-httpclient
+                        </Embed-Dependency>
                         <Web-ContextPath>${web.context}</Web-ContextPath>
                     </instructions>
                 </configuration>

@@ -19,8 +19,8 @@ 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 org.openstack4j.model.network.Network;
+import org.openstack4j.model.network.Subnet;
 
 import java.util.Map;
 import java.util.Objects;
@@ -47,18 +47,18 @@ public final class CordService {
     /**
      * Default constructor.
      *
-     * @param vNet OpenStack network
-     * @param subnet OpenStack subnet
+     * @param osNet OpenStack network
+     * @param osSubnet OpenStack subnet
      * @param hosts host and tunnel ip map
      * @param tenantServices list of tenant service ids
      */
-    public CordService(OpenstackNetwork vNet, OpenstackSubnet subnet,
+    public CordService(Network osNet, Subnet osSubnet,
                        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.id = CordServiceId.of(osNet.getId());
+        this.segmentationId = Long.parseLong(osNet.getProviderSegID());
+        this.serviceType = getServiceType(osNet.getName());
+        this.serviceIpRange = IpPrefix.valueOf(osSubnet.getCidr());
+        this.serviceIp = IpAddress.valueOf(osSubnet.getGateway());
         this.hosts = hosts;
         this.tenantServices = tenantServices;
     }

@@ -46,10 +46,6 @@ public class CordVtnConfig extends Config<ApplicationId> {
     public static final String LOCAL_MANAGEMENT_IP = "localManagementIp";
     public static final String OVSDB_PORT = "ovsdbPort";
 
-    public static final String SSH_PORT = "sshPort";
-    public static final String SSH_USER = "sshUser";
-    public static final String SSH_KEY_FILE = "sshKeyFile";
-
     public static final String CORDVTN_NODES = "nodes";
     public static final String HOSTNAME = "hostname";
     public static final String HOST_MANAGEMENT_IP = "hostManagementIp";
@@ -57,6 +53,17 @@ public class CordVtnConfig extends Config<ApplicationId> {
     public static final String DATA_PLANE_INTF = "dataPlaneIntf";
     public static final String BRIDGE_ID = "bridgeId";
 
+    public static final String SSH = "ssh";
+    public static final String SSH_PORT = "sshPort";
+    public static final String SSH_USER = "sshUser";
+    public static final String SSH_KEY_FILE = "sshKeyFile";
+
+    public static final String OPENSTACK = "openstack";
+    public static final String OPENSTACK_ENDPOINT = "endpoint";
+    public static final String OPENSTACK_TENANT = "tenant";
+    public static final String OPENSTACK_USER = "user";
+    public static final String OPENSTACK_PASSWORD = "password";
+
     /**
      * Returns the set of nodes read from network config.
      *
@@ -65,15 +72,22 @@ public class CordVtnConfig extends Config<ApplicationId> {
     public Set<CordVtnNode> cordVtnNodes() {
 
         Set<CordVtnNode> nodes = Sets.newHashSet();
-        JsonNode jsonNodes = object.get(CORDVTN_NODES);
-        if (jsonNodes == null) {
+
+        JsonNode cordvtnNodes = object.get(CORDVTN_NODES);
+        if (cordvtnNodes == null) {
             log.debug("No CORD VTN nodes found");
             return nodes;
         }
 
-        for (JsonNode jsonNode : jsonNodes) {
+        JsonNode sshNode = object.get(SSH);
+        if (sshNode == null) {
+            log.warn("SSH information not found");
+            return nodes;
+        }
+
+        for (JsonNode cordvtnNode : cordvtnNodes) {
             try {
-                NetworkAddress hostMgmt = NetworkAddress.valueOf(getConfig(jsonNode, HOST_MANAGEMENT_IP));
+                NetworkAddress hostMgmt = NetworkAddress.valueOf(getConfig(cordvtnNode, HOST_MANAGEMENT_IP));
                 NetworkAddress localMgmt = NetworkAddress.valueOf(getConfig(object, LOCAL_MANAGEMENT_IP));
                 if (hostMgmt.prefix().contains(localMgmt.prefix()) ||
                         localMgmt.prefix().contains(hostMgmt.prefix())) {
@@ -84,22 +98,22 @@ public class CordVtnConfig extends Config<ApplicationId> {
                 Ip4Address hostMgmtIp = hostMgmt.ip().getIp4Address();
                 SshAccessInfo sshInfo = new SshAccessInfo(
                         hostMgmtIp,
-                        TpPort.tpPort(Integer.parseInt(getConfig(object, SSH_PORT))),
-                        getConfig(object, SSH_USER), getConfig(object, SSH_KEY_FILE));
+                        TpPort.tpPort(Integer.parseInt(getConfig(sshNode, SSH_PORT))),
+                        getConfig(sshNode, SSH_USER), getConfig(sshNode, SSH_KEY_FILE));
 
-                String hostname = getConfig(jsonNode, HOSTNAME);
+                String hostname = getConfig(cordvtnNode, HOSTNAME);
                 CordVtnNode newNode = new CordVtnNode(
                         hostname, hostMgmt, localMgmt,
-                        NetworkAddress.valueOf(getConfig(jsonNode, DATA_PLANE_IP)),
+                        NetworkAddress.valueOf(getConfig(cordvtnNode, DATA_PLANE_IP)),
                         TpPort.tpPort(Integer.parseInt(getConfig(object, OVSDB_PORT))),
                         sshInfo,
-                        DeviceId.deviceId(getConfig(jsonNode, BRIDGE_ID)),
-                        getConfig(jsonNode, DATA_PLANE_INTF),
+                        DeviceId.deviceId(getConfig(cordvtnNode, BRIDGE_ID)),
+                        getConfig(cordvtnNode, DATA_PLANE_INTF),
                         CordVtnNodeState.noState());
 
                 nodes.add(newNode);
             } catch (IllegalArgumentException | NullPointerException e) {
-                log.error("{}", e.toString());
+                log.error("{}", e);
             }
         }
 
@@ -167,5 +181,90 @@ public class CordVtnConfig extends Config<ApplicationId> {
 
         return publicGateways;
     }
-}
 
+    /**
+     * Returns OpenStack API access information.
+     *
+     * @return openstack config
+     */
+    public OpenStackConfig openstackConfig() {
+        JsonNode jsonNode = object.get(OPENSTACK);
+        if (jsonNode == null) {
+            log.error("Failed to get OpenStack configurations");
+            return null;
+        }
+
+        try {
+            return new OpenStackConfig(
+                    jsonNode.path(OPENSTACK_ENDPOINT).asText(),
+                    jsonNode.path(OPENSTACK_TENANT).asText(),
+                    jsonNode.path(OPENSTACK_USER).asText(),
+                    jsonNode.path(OPENSTACK_PASSWORD).asText());
+        } catch (IllegalArgumentException | NullPointerException e) {
+            log.error("Failed to get OpenStack configurations");
+            return null;
+        }
+    }
+
+    /**
+     * Configuration for OpenStack API access.
+     */
+    public static class OpenStackConfig {
+
+        private final String endpoint;
+        private final String tenant;
+        private final String user;
+        private final String password;
+
+        /**
+         * Default constructor.
+         *
+         * @param endpoint Keystone endpoint
+         * @param tenant tenant name
+         * @param user user name
+         * @param password passwowrd
+         */
+        public OpenStackConfig(String endpoint, String tenant, String user, String password) {
+            this.endpoint = endpoint;
+            this.tenant = tenant;
+            this.user = user;
+            this.password = password;
+        }
+
+        /**
+         * Returns OpenStack API endpoint.
+         *
+         * @return endpoint
+         */
+        public String endpoint() {
+            return this.endpoint;
+        }
+
+        /**
+         * Returns OpenStack tenant name.
+         *
+         * @return tenant name
+         */
+        public String tenant() {
+            return this.tenant;
+        }
+
+        /**
+         * Returns OpenStack user.
+         *
+         * @return user name
+         */
+        public String user() {
+            return this.user;
+        }
+
+        /**
+         * Returns OpenStack password for the user.
+         *
+         * @return password
+         */
+        public String password() {
+            return this.password;
+        }
+    }
+}

@@ -75,8 +75,8 @@ import org.onosproject.net.group.GroupBuckets;
 import org.onosproject.net.group.GroupDescription;
 import org.onosproject.net.group.GroupKey;
 import org.onosproject.net.group.GroupService;
-import org.onosproject.openstackinterface.OpenstackNetwork;
-import org.onosproject.openstackinterface.OpenstackSubnet;
+import org.openstack4j.model.network.Network;
+import org.openstack4j.model.network.Subnet;
 import org.slf4j.Logger;
 
 import java.util.ArrayList;
@@ -190,30 +190,31 @@ public class CordVtnRuleInstaller {
      *
      * @param host host
      * @param tunnelIp tunnel ip
-     * @param vNet openstack network
+     * @param osNet openstack network
      */
-    public void populateBasicConnectionRules(Host host, IpAddress tunnelIp, OpenstackNetwork vNet) {
+    public void populateBasicConnectionRules(Host host, IpAddress tunnelIp, Network osNet) {
         checkNotNull(host);
-        checkNotNull(vNet);
+        checkNotNull(osNet);
 
         DeviceId deviceId = host.location().deviceId();
         PortNumber inPort = host.location().port();
         MacAddress dstMac = host.mac();
         IpAddress hostIp = host.ipAddresses().stream().findFirst().get();
-        long tunnelId = Long.parseLong(vNet.segmentId());
+        long tunnelId = Long.parseLong(osNet.getProviderSegID());
 
-        OpenstackSubnet subnet = vNet.subnets().stream()
+        Subnet osSubnet = osNet.getNeutronSubnets().stream()
                 .findFirst()
                 .orElse(null);
 
-        if (subnet == null) {
+        if (osSubnet == null) {
             log.error("Failed to get subnet for {}", host.id());
             return;
         }
+        Ip4Prefix cidr = Ip4Prefix.valueOf(osSubnet.getCidr());
 
         populateLocalInPortRule(deviceId, inPort, hostIp);
-        populateDirectAccessRule(Ip4Prefix.valueOf(subnet.cidr()), Ip4Prefix.valueOf(subnet.cidr()));
-        populateServiceIsolationRule(Ip4Prefix.valueOf(subnet.cidr()));
+        populateDirectAccessRule(cidr, cidr);
+        populateServiceIsolationRule(cidr);
         populateDstIpRule(deviceId, inPort, dstMac, hostIp, tunnelId, tunnelIp);
         populateTunnelInRule(deviceId, inPort, dstMac, tunnelId);
     }

@@ -47,6 +47,10 @@
             <param-name>javax.ws.rs.Application</param-name>
             <param-value>org.onosproject.cordvtn.rest.CordVtnWebApplication</param-value>
         </init-param>
+        <init-param>
+            <param-name>jersey.config.server.disableAutoDiscovery</param-name>
+            <param-value>true</param-value>
+        </init-param>
         <load-on-startup>1</load-on-startup>
     </servlet>