Bug 8055: use method references instead of lambdas
[ovsdb.git] / hwvtepsouthbound / hwvtepsouthbound-impl / src / main / java / org / opendaylight / ovsdb / hwvtepsouthbound / HwvtepSouthboundUtil.java
index 9616f2c483056eb345da9042c4aeb8f3e14cbdf4..d38363959660dff02c9dbf1d76e26f7129fb4b29 100644 (file)
@@ -1,20 +1,46 @@
 /*
- * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ * Copyright (c) 2015, 2017 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
+
 package org.opendaylight.ovsdb.hwvtepsouthbound;
 
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
+import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
+import org.opendaylight.ovsdb.lib.error.SchemaVersionMismatchException;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalRef;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepPhysicalSwitchAttributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.ConnectionInfo;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
+import org.opendaylight.yangtools.yang.binding.Identifiable;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.CheckedFuture;
+
+import java.util.Collection;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
 public class HwvtepSouthboundUtil {
 
     private static final Logger LOG = LoggerFactory.getLogger(HwvtepSouthboundUtil.class);
+    private static final String SCHEMA_VERSION_MISMATCH =
+            "{} column for {} table is not supported by this version of the {} schema: {}";
 
     private static InstanceIdentifierCodec instanceIdentifierCodec;
 
@@ -44,5 +70,139 @@ public class HwvtepSouthboundUtil {
         return result;
     }
 
+    public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> Optional<D> readNode(
+                    ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
+        Optional<D> node = Optional.absent();
+        try {
+            node = transaction.read(LogicalDatastoreType.OPERATIONAL, connectionIid).checkedGet();
+        } catch (final ReadFailedException e) {
+            LOG.warn("Read Operational/DS for Node failed! {}", connectionIid, e);
+        }
+        return node;
+    }
+
+    public static Optional<HwvtepGlobalAugmentation> getManagingNode(DataBroker db,
+                    HwvtepPhysicalSwitchAttributes pNode) {
+        Preconditions.checkNotNull(pNode);
+        Optional<HwvtepGlobalAugmentation> result = null;
+        HwvtepGlobalRef ref = pNode.getManagedBy();
+        if (ref != null && ref.getValue() != null) {
+            result = getManagingNode(db, ref);
+        } else {
+            LOG.warn("Cannot find client for PhysicalSwitch without a specified ManagedBy {}", pNode);
+            return Optional.absent();
+        }
+        if (!result.isPresent()) {
+            LOG.warn("Failed to find managing node for PhysicalSwitch {}", pNode);
+        }
+        return result;
+    }
+
+    public static Optional<HwvtepGlobalAugmentation> getManagingNode(DataBroker db, HwvtepGlobalRef ref) {
+        try {
+            ReadOnlyTransaction transaction = db.newReadOnlyTransaction();
+            @SuppressWarnings("unchecked")
+            // Note: erasure makes this safe in combination with the typecheck
+            // below
+            InstanceIdentifier<Node> path = (InstanceIdentifier<Node>) ref.getValue();
+
+            CheckedFuture<Optional<Node>, ReadFailedException> nf =
+                            transaction.read(LogicalDatastoreType.OPERATIONAL, path);
+            transaction.close();
+            Optional<Node> optional = nf.get();
+            if (optional != null && optional.isPresent()) {
+                HwvtepGlobalAugmentation hwvtepNode = null;
+                Node node = optional.get();
+                if (node instanceof HwvtepGlobalAugmentation) {
+                    hwvtepNode = (HwvtepGlobalAugmentation) node;
+                } else if (node != null) {
+                    hwvtepNode = node.getAugmentation(HwvtepGlobalAugmentation.class);
+                }
+                if (hwvtepNode != null) {
+                    return Optional.of(hwvtepNode);
+                } else {
+                    LOG.warn("Hwvtep switch claims to be managed by {} but " + "that HwvtepNode does not exist",
+                                    ref.getValue());
+                    return Optional.absent();
+                }
+            } else {
+                LOG.warn("Mysteriously got back a thing which is *not* a topology Node: {}", optional);
+                return Optional.absent();
+            }
+        } catch (Exception e) {
+            LOG.warn("Failed to get HwvtepNode {}", ref, e);
+            return Optional.absent();
+        }
+    }
+    public static String connectionInfoToString(final ConnectionInfo connectionInfo) {
+        return String.valueOf(
+                connectionInfo.getRemoteIp().getValue()) + ":" + connectionInfo.getRemotePort().getValue();
+    }
+
+
+    public static void schemaMismatchLog(String column, String table, SchemaVersionMismatchException ex) {
+        LOG.debug(SCHEMA_VERSION_MISMATCH, column, table, "hw_vtep", ex.getMessage());
+    }
+
+    public static <KeyType, D> void updateData(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
+                                               Class<? extends Identifiable> cls, KeyType key, D data) {
+        if (key == null) {
+            return;
+        }
+        if (!map.containsKey(cls)) {
+            map.put(cls, new ConcurrentHashMap<>());
+        }
+        map.get(cls).put(key, data);
+    }
+
+    public static <KeyType, D> D getData(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
+                                         Class<? extends Identifiable> cls, KeyType key) {
+        if (key == null) {
+            return null;
+        }
+        if (map.containsKey(cls)) {
+            return map.get(cls).get(key);
+        }
+        return null;
+    }
+
+    public static <KeyType, D> boolean containsKey(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
+                                                   Class<? extends Identifiable> cls, KeyType key) {
+        if (key == null) {
+            return false;
+        }
+        if (map.containsKey(cls)) {
+            return map.get(cls).containsKey(key);
+        }
+        return false;
+    }
 
+    public static <KeyType, D> void clearData(Map<Class<? extends Identifiable>, Map<KeyType, D>> map,
+                                              Class<? extends Identifiable> cls, KeyType key) {
+        if (key == null) {
+            return;
+        }
+        if (map.containsKey(cls)) {
+            map.get(cls).remove(key);
+        }
+    }
+
+    public static <T> boolean isEmpty(Collection<T> list) {
+        return list == null || list.isEmpty();
+    }
+
+    public static boolean isEmptyMap(Map map) {
+        return map == null || map.isEmpty();
+    }
+
+    public static InstanceIdentifier<Node> getGlobalNodeIid(final InstanceIdentifier<Node> physicalNodeIid) {
+        String nodeId = physicalNodeIid.firstKeyOf(Node.class).getNodeId().getValue();
+        int physicalSwitchIndex = nodeId.indexOf(HwvtepSouthboundConstants.PSWITCH_URI_PREFIX);
+        if (physicalSwitchIndex > 0) {
+            nodeId = nodeId.substring(0, physicalSwitchIndex - 1);
+        } else {
+            return null;
+        }
+        return physicalNodeIid.firstIdentifierOf(Topology.class).child(Node.class , new NodeKey(new NodeId(nodeId)));
+    }
 }