| /* |
| * 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 java.util.LinkedHashMap; |
| import java.util.Locale; |
| import java.util.Map; |
| |
| import org.apache.solr.common.SolrException; |
| import org.apache.solr.common.cloud.ClusterState; |
| import org.apache.solr.common.cloud.ZkNodeProps; |
| import org.apache.solr.common.cloud.ZkStateReader; |
| import org.apache.solr.common.util.NamedList; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static org.apache.solr.cloud.api.collections.OverseerCollectionMessageHandler.Cmd; |
| import static org.apache.solr.common.SolrException.ErrorCode.BAD_REQUEST; |
| import static org.apache.solr.common.params.CommonParams.NAME; |
| |
| public class SetAliasPropCmd implements Cmd { |
| |
| public static final String PROPERTIES = "property"; |
| |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| private final OverseerCollectionMessageHandler messageHandler; |
| |
| SetAliasPropCmd(OverseerCollectionMessageHandler messageHandler) { |
| this.messageHandler = messageHandler; |
| } |
| |
| @Override |
| public void call(ClusterState state, ZkNodeProps message, NamedList results) throws Exception { |
| String aliasName = message.getStr(NAME); |
| |
| final ZkStateReader.AliasesManager aliasesManager = messageHandler.zkStateReader.aliasesManager; |
| |
| // Ensure we see the alias. This may be redundant but SetAliasPropCmd isn't expected to be called very frequently |
| aliasesManager.update(); |
| |
| if (aliasesManager.getAliases().getCollectionAliasMap().get(aliasName) == null) { |
| // nicer than letting aliases object throw later on... |
| throw new SolrException(BAD_REQUEST, |
| String.format(Locale.ROOT, "Can't modify non-existent alias %s", aliasName)); |
| } |
| |
| @SuppressWarnings("unchecked") |
| Map<String, String> properties = new LinkedHashMap<>((Map<String, String>) message.get(PROPERTIES)); |
| |
| // check & cleanup properties. It's a mutable copy. |
| for (Map.Entry<String, String> entry : properties.entrySet()) { |
| String key = entry.getKey(); |
| if ("".equals(key.trim())) { |
| throw new SolrException(BAD_REQUEST, "property keys must not be pure whitespace"); |
| } |
| if (!key.equals(key.trim())) { |
| throw new SolrException(BAD_REQUEST, "property keys should not begin or end with whitespace"); |
| } |
| String value = entry.getValue(); |
| if ("".equals(value)) { |
| entry.setValue(null); |
| } |
| } |
| |
| aliasesManager.applyModificationAndExportToZk(aliases1 -> aliases1.cloneWithCollectionAliasProperties(aliasName, properties)); |
| } |
| } |