2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.cluster.datastore.utils;
11 import org.opendaylight.controller.cluster.access.concepts.MemberName;
12 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
13 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
14 import org.opendaylight.yangtools.yang.common.QName;
15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
17 import org.slf4j.Logger;
18 import org.slf4j.LoggerFactory;
21 * Utils for encoding prefix shard name.
23 public class ClusterUtils {
24 private static final Logger LOG = LoggerFactory.getLogger(ClusterUtils.class);
26 // id for the shard used to store prefix configuration
27 public static final String PREFIX_CONFIG_SHARD_ID = "prefix-configuration-shard";
29 public static final QName PREFIX_SHARDS_QNAME =
30 QName.create("urn:opendaylight:params:xml:ns:yang:controller:md:sal:clustering:prefix-shard-configuration",
31 "2017-01-10", "prefix-shards").intern();
32 public static final QName SHARD_LIST_QNAME =
33 QName.create(PREFIX_SHARDS_QNAME, "shard").intern();
34 public static final QName SHARD_PREFIX_QNAME =
35 QName.create(PREFIX_SHARDS_QNAME, "prefix").intern();
36 public static final QName SHARD_REPLICAS_QNAME =
37 QName.create(PREFIX_SHARDS_QNAME, "replicas").intern();
38 public static final QName SHARD_REPLICA_QNAME =
39 QName.create(PREFIX_SHARDS_QNAME, "replica").intern();
41 public static final YangInstanceIdentifier PREFIX_SHARDS_PATH =
42 YangInstanceIdentifier.of(PREFIX_SHARDS_QNAME).toOptimized();
43 public static final YangInstanceIdentifier SHARD_LIST_PATH =
44 PREFIX_SHARDS_PATH.node(SHARD_LIST_QNAME).toOptimized();
46 public static ShardIdentifier getShardIdentifier(final MemberName memberName, final DOMDataTreeIdentifier prefix) {
48 switch (prefix.getDatastoreType()) {
56 type = prefix.getDatastoreType().name();
57 LOG.warn("Unknown data store type {}", type);
60 return ShardIdentifier.create(getCleanShardName(prefix.getRootIdentifier()), memberName, type);
64 * Returns an encoded shard name based on the provided path that should doesn't contain characters that cannot be
65 * present in akka actor paths.
67 * @param path Path on which to base the shard name
68 * @return encoded name that doesn't contain characters that cannot be in actor path.
70 public static String getCleanShardName(final YangInstanceIdentifier path) {
75 final StringBuilder builder = new StringBuilder();
76 // TODO need a better mapping that includes namespace, but we'll need to cleanup the string beforehand
77 // we have to fight both javax and akka url path restrictions..
78 path.getPathArguments().forEach(p -> {
79 builder.append(p.getNodeType().getLocalName());
80 if (p instanceof NodeIdentifierWithPredicates) {
81 builder.append("-key_");
82 ((NodeIdentifierWithPredicates) p).getKeyValues().forEach((key, value) -> {
83 builder.append(key.getLocalName());
84 builder.append(value);
91 return builder.toString();