Remove sal-distrubited-eos

[controller.git] / opendaylight / md-sal / sal-distributed-eos / src / main / java / org / opendaylight / controller / cluster / entityownership / EntityOwnershipStatistics.java

diff --git a/opendaylight/md-sal/sal-distributed-eos/src/main/java/org/opendaylight/controller/cluster/entityownership/EntityOwnershipStatistics.java b/opendaylight/md-sal/sal-distributed-eos/src/main/java/org/opendaylight/controller/cluster/entityownership/EntityOwnershipStatistics.java
deleted file mode 100644 (file)
index 59cc755..0000000
--- a/opendaylight/md-sal/sal-distributed-eos/src/main/java/org/opendaylight/controller/cluster/entityownership/EntityOwnershipStatistics.java
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco Systems, Inc. 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.cluster.entityownership;
-
-import static org.opendaylight.controller.cluster.entityownership.EntityOwnersModel.entityTypeFromEntityPath;
-
-import com.google.common.base.Strings;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Optional;
-import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidateNode;
-import tech.pantheon.triemap.TrieMap;
-
-/**
- * EntityOwnershipStatistics is a utility class that keeps track of ownership statistics for the candidates and
- * caches it for quick count queries.
- * <p/>
- * While the entity ownership model does maintain the information about which entity is owned by which candidate
- * finding out how many entities of a given type are owned by a given candidate is not an efficient query.
- */
-class EntityOwnershipStatistics extends AbstractEntityOwnerChangeListener {
-    private final TrieMap<String, TrieMap<String, Long>> statistics = TrieMap.create();
-
-    EntityOwnershipStatistics() {
-        // Hidden on purpose
-    }
-
-    @Override
-    public void onInitialData() {
-        // No-op
-    }
-
-    @Override
-    public void onDataTreeChanged(final Collection<DataTreeCandidate> changes) {
-        for (DataTreeCandidate change : changes) {
-            DataTreeCandidateNode changeRoot = change.getRootNode();
-            LeafNode<?> ownerLeaf = (LeafNode<?>) changeRoot.getDataAfter().get();
-            String entityType = entityTypeFromEntityPath(change.getRootPath());
-            String newOwner = extractOwner(ownerLeaf);
-            if (!Strings.isNullOrEmpty(newOwner)) {
-                updateStatistics(entityType, newOwner, 1);
-            }
-
-            Optional<NormalizedNode> dataBefore = changeRoot.getDataBefore();
-            if (dataBefore.isPresent()) {
-                String origOwner = extractOwner((LeafNode<?>) changeRoot.getDataBefore().get());
-                if (!Strings.isNullOrEmpty(origOwner)) {
-                    updateStatistics(entityType, origOwner, -1);
-                }
-            }
-        }
-    }
-
-    Map<String, Map<String, Long>> all() {
-        Map<String, Map<String, Long>> snapshot = new HashMap<>();
-        for (String entityType : statistics.immutableSnapshot().keySet()) {
-            snapshot.put(entityType, byEntityType(entityType));
-        }
-        return snapshot;
-    }
-
-    Map<String, Long> byEntityType(final String entityType) {
-        if (statistics.get(entityType) != null) {
-            return statistics.get(entityType).immutableSnapshot();
-        }
-        return new HashMap<>();
-    }
-
-    private void updateStatistics(final String entityType, final String candidateName, final long count) {
-        TrieMap<String, Long> map = statistics.get(entityType);
-        if (map == null) {
-            map = TrieMap.create();
-            map.put(candidateName, count);
-            statistics.put(entityType, map);
-        } else {
-            map.merge(candidateName, count, (ownedEntities, addedEntities) -> ownedEntities + addedEntities);
-        }
-    }
-}