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Diffstat (limited to 'framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/mastership/impl/RoleValue.java')
| -rw-r--r-- | framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/mastership/impl/RoleValue.java | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/mastership/impl/RoleValue.java b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/mastership/impl/RoleValue.java deleted file mode 100644 index 5a38a34a..00000000 --- a/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/mastership/impl/RoleValue.java +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Copyright 2014 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.store.mastership.impl; - -import static org.onosproject.net.MastershipRole.MASTER; -import static org.onosproject.net.MastershipRole.NONE; -import static org.onosproject.net.MastershipRole.STANDBY; - -import java.util.Collections; -import java.util.EnumMap; -import java.util.LinkedList; -import java.util.List; -import java.util.Map; - -import org.onosproject.cluster.NodeId; -import org.onosproject.cluster.RoleInfo; -import org.onosproject.net.MastershipRole; - -import com.google.common.base.MoreObjects; -import com.google.common.base.MoreObjects.ToStringHelper; -import com.google.common.collect.Lists; - -/** - * A structure that holds node mastership roles associated with a - * {@link org.onosproject.net.DeviceId}. This structure needs to be locked through IMap. - */ -final class RoleValue { - - protected final Map<MastershipRole, List<NodeId>> value = new EnumMap<>(MastershipRole.class); - - /** - * Constructs empty RoleValue. - */ - public RoleValue() { - value.put(MastershipRole.MASTER, new LinkedList<>()); - value.put(MastershipRole.STANDBY, new LinkedList<>()); - value.put(MastershipRole.NONE, new LinkedList<>()); - } - - /** - * Constructs copy of specified RoleValue. - * - * @param original original to create copy from - */ - public RoleValue(final RoleValue original) { - value.put(MASTER, Lists.newLinkedList(original.value.get(MASTER))); - value.put(STANDBY, Lists.newLinkedList(original.value.get(STANDBY))); - value.put(NONE, Lists.newLinkedList(original.value.get(NONE))); - } - - // exposing internals for serialization purpose only - Map<MastershipRole, List<NodeId>> value() { - return Collections.unmodifiableMap(value); - } - - public List<NodeId> nodesOfRole(MastershipRole type) { - return value.get(type); - } - - /** - * Returns the first node to match the MastershipRole, or if there - * are none, null. - * - * @param type the role - * @return a node ID or null - */ - public NodeId get(MastershipRole type) { - return value.get(type).isEmpty() ? null : value.get(type).get(0); - } - - public boolean contains(MastershipRole type, NodeId nodeId) { - return value.get(type).contains(nodeId); - } - - public MastershipRole getRole(NodeId nodeId) { - if (contains(MASTER, nodeId)) { - return MASTER; - } - if (contains(STANDBY, nodeId)) { - return STANDBY; - } - return NONE; - } - - /** - * Associates a node to a certain role. - * - * @param type the role - * @param nodeId the node ID of the node to associate - * @return true if modified - */ - public boolean add(MastershipRole type, NodeId nodeId) { - List<NodeId> nodes = value.get(type); - - if (!nodes.contains(nodeId)) { - return nodes.add(nodeId); - } - return false; - } - - /** - * Removes a node from a certain role. - * - * @param type the role - * @param nodeId the ID of the node to remove - * @return true if modified - */ - public boolean remove(MastershipRole type, NodeId nodeId) { - List<NodeId> nodes = value.get(type); - if (!nodes.isEmpty()) { - return nodes.remove(nodeId); - } else { - return false; - } - } - - /** - * Reassigns a node from one role to another. If the node was not of the - * old role, it will still be assigned the new role. - * - * @param nodeId the Node ID of node changing roles - * @param from the old role - * @param to the new role - * @return true if modified - */ - public boolean reassign(NodeId nodeId, MastershipRole from, MastershipRole to) { - boolean modified = remove(from, nodeId); - modified |= add(to, nodeId); - return modified; - } - - /** - * Replaces a node in one role with another node. Even if there is no node to - * replace, the new node is associated to the role. - * - * @param from the old NodeId to replace - * @param to the new NodeId - * @param type the role associated with the old NodeId - * @return true if modified - */ - public boolean replace(NodeId from, NodeId to, MastershipRole type) { - boolean modified = remove(type, from); - modified |= add(type, to); - return modified; - } - - /** - * Summarizes this RoleValue as a RoleInfo. Note that master and/or backups - * may be empty, so the values should be checked for safety. - * - * @return the RoleInfo. - */ - public RoleInfo roleInfo() { - return new RoleInfo( - get(MastershipRole.MASTER), nodesOfRole(MastershipRole.STANDBY)); - } - - @Override - public String toString() { - ToStringHelper helper = MoreObjects.toStringHelper(this.getClass()); - for (Map.Entry<MastershipRole, List<NodeId>> el : value.entrySet()) { - helper.add(el.getKey().toString(), el.getValue()); - } - return helper.toString(); - } -} |