Expose entity details in MDSAL

[controller.git] / opendaylight / md-sal / eos-dom-akka / src / main / java / org / opendaylight / controller / eos / akka / owner / supervisor / command / GetEntitiesReply.java

diff --git a/opendaylight/md-sal/eos-dom-akka/src/main/java/org/opendaylight/controller/eos/akka/owner/supervisor/command/GetEntitiesReply.java b/opendaylight/md-sal/eos-dom-akka/src/main/java/org/opendaylight/controller/eos/akka/owner/supervisor/command/GetEntitiesReply.java
new file mode 100644 (file)
index 0000000..ea8a5a8
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+++ b/opendaylight/md-sal/eos-dom-akka/src/main/java/org/opendaylight/controller/eos/akka/owner/supervisor/command/GetEntitiesReply.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2021 PANTHEON.tech, s.r.o. 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.controller.eos.akka.owner.supervisor.command;
+
+import static com.google.common.base.Verify.verify;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSetMultimap;
+import com.google.common.collect.ImmutableSetMultimap.Builder;
+import com.google.common.collect.Iterables;
+import java.io.Serializable;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.stream.Collectors;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.entity.owners.norev.EntityName;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.entity.owners.norev.EntityType;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.entity.owners.norev.GetEntitiesOutput;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.entity.owners.norev.GetEntitiesOutputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.entity.owners.norev.NodeName;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.entity.owners.norev.get.entities.output.EntitiesBuilder;
+import org.opendaylight.yangtools.yang.binding.util.BindingMap;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+
+public final class GetEntitiesReply extends OwnerSupervisorReply implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    private final ImmutableSetMultimap<DOMEntity, String> candidates;
+    private final ImmutableMap<DOMEntity, String> owners;
+
+    public GetEntitiesReply(final Map<DOMEntity, String> owners, final Map<DOMEntity, Set<String>> candidates) {
+        final Builder<DOMEntity, String> builder = ImmutableSetMultimap.builder();
+        for (Entry<DOMEntity, Set<String>> entry : candidates.entrySet()) {
+            builder.putAll(entry.getKey(), entry.getValue());
+        }
+        this.candidates = builder.build();
+        this.owners = ImmutableMap.copyOf(owners);
+    }
+
+    public @NonNull GetEntitiesOutput toOutput() {
+        final Set<DOMEntity> entities = new HashSet<>();
+        entities.addAll(owners.keySet());
+        entities.addAll(candidates.keySet());
+
+        return new GetEntitiesOutputBuilder()
+            .setEntities(entities.stream()
+                .map(entity -> {
+                    final EntitiesBuilder eb = new EntitiesBuilder()
+                        .setType(new EntityType(entity.getType()))
+                        .setName(extractName(entity))
+                        .setCandidateNodes(candidates.get(entity).stream()
+                            .map(NodeName::new).collect(Collectors.toUnmodifiableList()));
+
+                    final String owner = owners.get(entity);
+                    if (owner != null) {
+                        eb.setOwnerNode(new NodeName(owner));
+                    }
+                    return eb.build();
+                })
+                .collect(BindingMap.toMap()))
+            .build();
+    }
+
+    private static EntityName extractName(final DOMEntity entity) {
+        final PathArgument last = entity.getIdentifier().getLastPathArgument();
+        verify(last instanceof NodeIdentifierWithPredicates, "Unexpected last argument %s", last);
+        final Object value = Iterables.getOnlyElement(((NodeIdentifierWithPredicates) last).values());
+        verify(value instanceof String, "Unexpected predicate value %s", value);
+        return new EntityName((String) value);
+    }
+}