[ONOS-2248]The implementation of port resource service.

Change-Id: Ifaba79cad89a038bea018d886419398fcc3e7fb3

+/*
+ * Copyright 2015 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.app.vtnrsc.virtualport.impl;
+
+import java.util.Collection;
+import java.util.Collections;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.app.vtnrsc.TenantId;
+import org.onosproject.app.vtnrsc.TenantNetworkId;
+import org.onosproject.app.vtnrsc.VirtualPort;
+import org.onosproject.app.vtnrsc.VirtualPortId;
+import org.onosproject.app.vtnrsc.tenantnetwork.TenantNetworkService;
+import org.onosproject.app.vtnrsc.virtualport.VirtualPortService;
+import org.onosproject.net.DeviceId;
+import org.onosproject.store.service.EventuallyConsistentMap;
+import org.onosproject.store.service.MultiValuedTimestamp;
+import org.onosproject.store.service.StorageService;
+import org.onosproject.store.service.WallClockTimestamp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Provides implementation of the VirtualPort APIs.
+ */
+@Component(immediate = true)
+@Service
+public class VirtualPortManager implements VirtualPortService {
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private EventuallyConsistentMap<VirtualPortId, VirtualPort> vPortStore;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected StorageService storageService;
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected TenantNetworkService networkService;
+
+    @Activate
+    public void activate() {
+        KryoNamespace.Builder seriallizer = KryoNamespace.newBuilder()
+                .register(MultiValuedTimestamp.class);
+        vPortStore = storageService
+                .<VirtualPortId, VirtualPort>eventuallyConsistentMapBuilder()
+                .withName("vPortId_vPort").withSerializer(seriallizer)
+                .withTimestampProvider((k, v) -> new WallClockTimestamp())
+                .build();
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        vPortStore.destroy();
+        log.info("Stoppped");
+    }
+
+    @Override
+    public boolean exists(VirtualPortId vPortId) {
+        return vPortStore.containsKey(vPortId);
+    }
+
+    @Override
+    public VirtualPort getPort(VirtualPortId vPortId) {
+        if (!exists(vPortId)) {
+            return null;
+        }
+        return vPortStore.get(vPortId);
+    }
+
+    @Override
+    public Collection<VirtualPort> getPorts() {
+        return Collections.unmodifiableCollection(vPortStore.values());
+    }
+
+    @Override
+    public Collection<VirtualPort> getPorts(TenantNetworkId networkId) {
+        Collection<VirtualPort> vPortWithNetworkId =
+            Collections.unmodifiableCollection(vPortStore.values());
+        if (networkId == null || !networkService.exists(networkId)) {
+            return null;
+        }
+        for (VirtualPort  vPort : vPortWithNetworkId) {
+            if (!vPort.networkId().equals(networkId)) {
+                vPortWithNetworkId.remove(vPort);
+            }
+        }
+        return vPortWithNetworkId;
+    }
+
+    @Override
+    public Collection<VirtualPort> getPorts(TenantId tenantId) {
+        Collection<VirtualPort> vPortWithTenantId =
+                Collections.unmodifiableCollection(vPortStore.values());
+        if (tenantId == null) {
+            return null;
+        }
+        for (VirtualPort  vPort : vPortWithTenantId) {
+            if (!vPort.tenantId().equals(tenantId)) {
+                vPortWithTenantId.remove(vPort);
+            }
+        }
+        return vPortWithTenantId;
+    }
+
+    @Override
+    public Collection<VirtualPort> getPorts(DeviceId deviceId) {
+        Collection<VirtualPort> vPortWithDeviceId =
+                Collections.unmodifiableCollection(vPortStore.values());
+        if (deviceId == null) {
+            return null;
+        }
+        for (VirtualPort  vPort : vPortWithDeviceId) {
+            if (!vPort.deviceId().equals(deviceId)) {
+                vPortWithDeviceId.remove(vPort);
+            }
+        }
+        return vPortWithDeviceId;
+    }
+
+    @Override
+    public boolean createPorts(Iterable<VirtualPort> vPorts) {
+        for (VirtualPort vPort:vPorts) {
+            log.info("vPortId is  {} ", vPort.portId().toString());
+            vPortStore.put(vPort.portId(), vPort);
+        }
+        return true;
+    }
+
+    @Override
+    public boolean updatePorts(Iterable<VirtualPort> vPorts) {
+        Boolean flag = false;
+        if (vPorts != null) {
+            for (VirtualPort vPort:vPorts) {
+                vPortStore.put(vPort.portId(), vPort);
+                flag = true;
+            }
+        }
+        return flag;
+    }
+
+    @Override
+    public boolean removePorts(Iterable<VirtualPortId> vPortIds) {
+        Boolean flag = false;
+        if (vPortIds != null) {
+            for (VirtualPortId vPortId:vPortIds) {
+                vPortStore.remove(vPortId);
+                flag = true;
+                log.info("The result of removing vPortId is {}", flag.toString());
+            }
+        }
+        return flag;
+    }
+
+}