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
8 package org.opendaylight.controller.cluster.datastore.utils;
10 import org.opendaylight.controller.cluster.access.concepts.MemberName;
11 import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
12 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
13 import org.opendaylight.yangtools.yang.common.QName;
14 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
16 import org.slf4j.Logger;
17 import org.slf4j.LoggerFactory;
20 * Utils for encoding prefix shard name.
22 public final class ClusterUtils {
23 private static final Logger LOG = LoggerFactory.getLogger(ClusterUtils.class);
25 // id for the shard used to store prefix configuration
26 public static final String PREFIX_CONFIG_SHARD_ID = "prefix-configuration-shard";
28 public static final QName PREFIX_SHARDS_QNAME =
29 QName.create("urn:opendaylight:params:xml:ns:yang:controller:md:sal:clustering:prefix-shard-configuration",
30 "2017-01-10", "prefix-shards").intern();
31 public static final QName SHARD_LIST_QNAME =
32 QName.create(PREFIX_SHARDS_QNAME, "shard").intern();
33 public static final QName SHARD_PREFIX_QNAME =
34 QName.create(PREFIX_SHARDS_QNAME, "prefix").intern();
35 public static final QName SHARD_REPLICAS_QNAME =
36 QName.create(PREFIX_SHARDS_QNAME, "replicas").intern();
37 public static final QName SHARD_REPLICA_QNAME =
38 QName.create(PREFIX_SHARDS_QNAME, "replica").intern();
40 public static final YangInstanceIdentifier PREFIX_SHARDS_PATH =
41 YangInstanceIdentifier.of(PREFIX_SHARDS_QNAME).toOptimized();
42 public static final YangInstanceIdentifier SHARD_LIST_PATH =
43 PREFIX_SHARDS_PATH.node(SHARD_LIST_QNAME).toOptimized();
45 private ClusterUtils() {
48 public static ShardIdentifier getShardIdentifier(final MemberName memberName, final DOMDataTreeIdentifier prefix) {
50 switch (prefix.getDatastoreType()) {
58 type = prefix.getDatastoreType().name();
59 LOG.warn("Unknown data store type {}", type);
62 return ShardIdentifier.create(getCleanShardName(prefix.getRootIdentifier()), memberName, type);
66 * Returns an encoded shard name based on the provided path that should doesn't contain characters that cannot be
67 * present in akka actor paths.
69 * @param path Path on which to base the shard name
70 * @return encoded name that doesn't contain characters that cannot be in actor path.
72 public static String getCleanShardName(final YangInstanceIdentifier path) {
77 final StringBuilder builder = new StringBuilder();
78 // TODO need a better mapping that includes namespace, but we'll need to cleanup the string beforehand
79 // we have to fight both javax and akka url path restrictions..
80 path.getPathArguments().forEach(p -> {
81 builder.append(p.getNodeType().getLocalName());
82 if (p instanceof NodeIdentifierWithPredicates) {
83 builder.append("-key_");
84 ((NodeIdentifierWithPredicates) p).entrySet().forEach(entry -> {
85 builder.append(entry.getKey().getLocalName()).append(entry.getValue()).append('-');
91 return builder.toString();