| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.solr.cloud.api.collections; |
| |
| import java.lang.invoke.MethodHandles; |
| |
| import org.apache.solr.common.SolrException; |
| import org.apache.solr.common.cloud.Aliases; |
| import org.apache.solr.common.cloud.ClusterState; |
| import org.apache.solr.common.cloud.ZkNodeProps; |
| import org.apache.solr.common.params.CollectionAdminParams; |
| import org.apache.solr.common.params.CoreAdminParams; |
| import org.apache.solr.common.util.NamedList; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static org.apache.solr.common.params.CollectionAdminParams.FOLLOW_ALIASES; |
| |
| /** |
| * |
| */ |
| public class RenameCmd implements OverseerCollectionMessageHandler.Cmd { |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| private final OverseerCollectionMessageHandler ocmh; |
| |
| public RenameCmd(OverseerCollectionMessageHandler ocmh) { |
| this.ocmh = ocmh; |
| } |
| |
| @Override |
| public void call(ClusterState state, ZkNodeProps message, NamedList results) throws Exception { |
| String extCollectionName = message.getStr(CoreAdminParams.NAME); |
| String target = message.getStr(CollectionAdminParams.TARGET); |
| |
| if (ocmh.zkStateReader.aliasesManager != null) { // not a mock ZkStateReader |
| ocmh.zkStateReader.aliasesManager.update(); |
| } |
| |
| if (extCollectionName == null || target == null) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "both collection 'name' and 'target' name must be specified"); |
| } |
| Aliases aliases = ocmh.zkStateReader.getAliases(); |
| |
| boolean followAliases = message.getBool(FOLLOW_ALIASES, false); |
| String collectionName; |
| if (followAliases) { |
| collectionName = aliases.resolveSimpleAlias(extCollectionName); |
| } else { |
| collectionName = extCollectionName; |
| } |
| if (!state.hasCollection(collectionName)) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "source collection '" + collectionName + "' not found."); |
| } |
| if (ocmh.zkStateReader.getAliases().hasAlias(target)) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "target alias '" + target + "' exists: " |
| + ocmh.zkStateReader.getAliases().getCollectionAliasListMap().get(target)); |
| } |
| |
| ocmh.zkStateReader.aliasesManager.applyModificationAndExportToZk(a -> a.cloneWithRename(extCollectionName, target)); |
| } |
| } |