1 files changed, 184 insertions, 0 deletions
diff --git a/framework/src/onos/incubator/net/src/main/java/org/onosproject/incubator/net/intf/impl/InterfaceManager.java b/framework/src/onos/incubator/net/src/main/java/org/onosproject/incubator/net/intf/impl/InterfaceManager.java
new file mode 100644
index 00000000..f82cdbf2
--- /dev/null
+++ b/framework/src/onos/incubator/net/src/main/java/org/onosproject/incubator/net/intf/impl/InterfaceManager.java
@@ -0,0 +1,184 @@
+/*
+ * 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.incubator.net.intf.impl;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Maps;
+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.packet.IpAddress;
+import org.onlab.packet.VlanId;
+import org.onosproject.incubator.net.config.basics.ConfigException;
+import org.onosproject.incubator.net.config.basics.InterfaceConfig;
+import org.onosproject.incubator.net.intf.Interface;
+import org.onosproject.incubator.net.intf.InterfaceService;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.config.NetworkConfigEvent;
+import org.onosproject.net.config.NetworkConfigListener;
+import org.onosproject.net.config.NetworkConfigService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Collections;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+import static java.util.stream.Collectors.collectingAndThen;
+import static java.util.stream.Collectors.toSet;
+
+/**
+ * Manages the inventory of interfaces in the system.
+ */
+@Service
+@Component(immediate = true)
+public class InterfaceManager implements InterfaceService {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    private static final Class<ConnectPoint> SUBJECT_CLASS = ConnectPoint.class;
+    private static final Class<InterfaceConfig> CONFIG_CLASS = InterfaceConfig.class;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected NetworkConfigService configService;
+
+    private final InternalConfigListener listener = new InternalConfigListener();
+
+    private final Map<ConnectPoint, Set<Interface>> interfaces = Maps.newConcurrentMap();
+
+    @Activate
+    public void activate() {
+        configService.addListener(listener);
+
+        // TODO address concurrency issues here
+        for (ConnectPoint subject : configService.getSubjects(SUBJECT_CLASS, CONFIG_CLASS)) {
+            InterfaceConfig config = configService.getConfig(subject, CONFIG_CLASS);
+
+            if (config != null) {
+                updateInterfaces(config);
+            }
+        }
+
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        configService.removeListener(listener);
+
+        log.info("Stopped");
+    }
+
+    @Override
+    public Set<Interface> getInterfaces() {
+        return interfaces.values()
+                .stream()
+                .flatMap(set -> set.stream())
+                .collect(collectingAndThen(toSet(), ImmutableSet::copyOf));
+    }
+
+    @Override
+    public Set<Interface> getInterfacesByPort(ConnectPoint port) {
+        Set<Interface> intfs = interfaces.get(port);
+        if (intfs == null) {
+            return Collections.emptySet();
+        }
+        return ImmutableSet.copyOf(intfs);
+    }
+
+    @Override
+    public Set<Interface> getInterfacesByIp(IpAddress ip) {
+        return interfaces.values()
+                .stream()
+                .flatMap(set -> set.stream())
+                .filter(intf -> intf.ipAddresses()
+                        .stream()
+                        .anyMatch(ia -> ia.ipAddress().equals(ip)))
+                .collect(collectingAndThen(toSet(), ImmutableSet::copyOf));
+    }
+
+    @Override
+    public Interface getMatchingInterface(IpAddress ip) {
+        Optional<Interface> match = interfaces.values()
+                .stream()
+                .flatMap(set -> set.stream())
+                .filter(intf -> intf.ipAddresses()
+                        .stream()
+                        .anyMatch(intfIp -> intfIp.subnetAddress().contains(ip)))
+                .findFirst();
+
+        if (match.isPresent()) {
+            return match.get();
+        }
+
+        return null;
+    }
+
+    @Override
+    public Set<Interface> getInterfacesByVlan(VlanId vlan) {
+        return interfaces.values()
+                .stream()
+                .flatMap(set -> set.stream())
+                .filter(intf -> intf.vlan().equals(vlan))
+                .collect(collectingAndThen(toSet(), ImmutableSet::copyOf));
+    }
+
+    private void updateInterfaces(InterfaceConfig intfConfig) {
+        try {
+            interfaces.put(intfConfig.subject(), intfConfig.getInterfaces());
+        } catch (ConfigException e) {
+            log.error("Error in interface config", e);
+        }
+    }
+
+    private void removeInterfaces(ConnectPoint port) {
+        interfaces.remove(port);
+    }
+
+    /**
+     * Listener for network config events.
+     */
+    private class InternalConfigListener implements NetworkConfigListener {
+
+        @Override
+        public void event(NetworkConfigEvent event) {
+            switch (event.type()) {
+            case CONFIG_ADDED:
+            case CONFIG_UPDATED:
+                if (event.configClass() == InterfaceConfig.class) {
+                    InterfaceConfig config =
+                            configService.getConfig((ConnectPoint) event.subject(), InterfaceConfig.class);
+                    updateInterfaces(config);
+                }
+                break;
+            case CONFIG_REMOVED:
+                if (event.configClass() == InterfaceConfig.class) {
+                    removeInterfaces((ConnectPoint) event.subject());
+                }
+                break;
+            case CONFIG_REGISTERED:
+            case CONFIG_UNREGISTERED:
+            default:
+                break;
+            }
+        }
+    }
+}