| /* |
| * Copyright 2017-present 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.config.model; |
| |
| import java.util.Objects; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static java.util.Objects.hash; |
| import static org.onosproject.config.model.ModelConstants.INCOMPLETE_SCHEMA_INFO; |
| |
| /** |
| * Abstraction of an entity which identifies a node uniquely among its |
| * siblings. |
| */ |
| public class NodeKey<E extends NodeKey> implements Comparable<E>, Cloneable { |
| |
| protected SchemaId schemaId; |
| |
| /** |
| * Create object from builder. |
| * |
| * @param builder initialized builder |
| */ |
| protected NodeKey(NodeKeyBuilder builder) { |
| schemaId = builder.schemaId; |
| } |
| |
| /** |
| * Returns node key builder. |
| * |
| * @return node key builder |
| */ |
| public static NodeKeyBuilder builder() { |
| return new NodeKeyBuilder(); |
| } |
| |
| /** |
| * Returns the schema identifier as minimal key required to identify a |
| * branching node. |
| * |
| * @return schema identifier of a key |
| */ |
| public SchemaId schemaId() { |
| return schemaId; |
| } |
| |
| @Override |
| public int compareTo(NodeKey o) { |
| checkNotNull(o); |
| return schemaId.compareTo(o.schemaId()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return hash(schemaId); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == null) { |
| return false; |
| } |
| |
| if (!getClass().equals(obj.getClass())) { |
| return false; |
| } |
| |
| NodeKey that = (NodeKey) obj; |
| return Objects.equals(schemaId, that.schemaId); |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(getClass()) |
| .add("schemaId", schemaId) |
| .toString(); |
| } |
| |
| /** |
| * Creates and returns a deep copy of this object. |
| * |
| * @return cloned copy |
| * @throws CloneNotSupportedException if the object's class does not |
| * support the {@code Cloneable} interface |
| */ |
| public NodeKey clone() throws CloneNotSupportedException { |
| NodeKey clonedKey = (NodeKey) super.clone(); |
| clonedKey.schemaId = schemaId.clone(); |
| return clonedKey; |
| } |
| |
| /** |
| * Builder for node key. |
| * |
| * @param <B> node key type |
| */ |
| public static class NodeKeyBuilder<B extends NodeKeyBuilder<B>> { |
| private SchemaId schemaId; |
| |
| /** |
| * Create the node key from scratch. |
| */ |
| public NodeKeyBuilder() { |
| } |
| |
| /** |
| * Support the derived object to inherit from existing node key builder. |
| * |
| * @param base existing node key builder |
| */ |
| protected NodeKeyBuilder(NodeKeyBuilder base) { |
| checkNotNull(base.schemaId, INCOMPLETE_SCHEMA_INFO); |
| schemaId = base.schemaId; |
| } |
| |
| /** |
| * set the schema identifier. |
| * |
| * @param schema schema identifier |
| * @return current builder |
| */ |
| public B schemaId(SchemaId schema) { |
| schemaId = schema; |
| return (B) this; |
| } |
| |
| /** |
| * set the schema identifier. |
| * |
| * @param name name of the node |
| * @param nameSpace name space of the node |
| * @return current builder |
| */ |
| public B schemaId(String name, String nameSpace) { |
| schemaId = new SchemaId(name, nameSpace); |
| return (B) this; |
| } |
| |
| /** |
| * construct the node key. |
| * |
| * @return node key |
| */ |
| public NodeKey build() { |
| checkNotNull(schemaId.name(), INCOMPLETE_SCHEMA_INFO); |
| checkNotNull(schemaId.namespace(), INCOMPLETE_SCHEMA_INFO); |
| return new NodeKey(this); |
| } |
| } |
| } |
| |