| /* |
| * 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.rule; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.solr.core.CoreContainer; |
| import org.apache.solr.handler.admin.CoreAdminHandler; |
| import org.apache.solr.request.SolrQueryRequest; |
| |
| import static org.apache.solr.common.cloud.rule.ImplicitSnitch.CORES; |
| import static org.apache.solr.common.cloud.rule.ImplicitSnitch.DISK; |
| import static org.apache.solr.common.cloud.rule.ImplicitSnitch.SYSPROP; |
| |
| //this is the server-side component which provides the tag values |
| |
| /** @deprecated to be removed in Solr 9.0 (see SOLR-14930) |
| * |
| */ |
| public class ImplicitSnitch implements CoreAdminHandler.Invocable { |
| |
| static long getUsableSpaceInGB(Path path) throws IOException { |
| long space = Files.getFileStore(path).getUsableSpace(); |
| long spaceInGB = space / 1024 / 1024 / 1024; |
| return spaceInGB; |
| } |
| |
| @Override |
| public Map<String, Object> invoke(SolrQueryRequest req) { |
| Map<String, Object> result = new HashMap<>(); |
| CoreContainer cc = (CoreContainer) req.getContext().get(CoreContainer.class.getName()); |
| if (req.getParams().getInt(CORES, -1) == 1) { |
| result.put(CORES, cc.getLoadedCoreNames().size()); |
| } |
| if (req.getParams().getInt(DISK, -1) == 1) { |
| try { |
| final long spaceInGB = getUsableSpaceInGB(cc.getCoreRootDirectory()); |
| result.put(DISK, spaceInGB); |
| } catch (IOException e) { |
| |
| } |
| } |
| String[] sysProps = req.getParams().getParams(SYSPROP); |
| if (sysProps != null && sysProps.length > 0) { |
| for (String prop : sysProps) result.put(SYSPROP + prop, System.getProperty(prop)); |
| } |
| return result; |
| } |
| |
| } |