| /* |
| * 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.handler.dataimport; |
| |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.lang.invoke.MethodHandles; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import org.apache.solr.common.cloud.SolrZkClient; |
| import org.apache.zookeeper.KeeperException.NodeExistsException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * <p> |
| * A SolrCloud-friendly extension of {@link SimplePropertiesWriter}. |
| * This implementation ignores the "directory" parameter, saving |
| * the properties file under /configs/[solrcloud collection name]/ |
| */ |
| public class ZKPropertiesWriter extends SimplePropertiesWriter { |
| |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| private String path; |
| private SolrZkClient zkClient; |
| |
| @Override |
| public void init(DataImporter dataImporter, Map<String, String> params) { |
| super.init(dataImporter, params); |
| zkClient = dataImporter.getCore().getCoreDescriptor().getCoreContainer() |
| .getZkController().getZkClient(); |
| } |
| |
| @Override |
| protected void findDirectory(DataImporter dataImporter, Map<String, String> params) { |
| String collection = dataImporter.getCore().getCoreDescriptor() |
| .getCloudDescriptor().getCollectionName(); |
| path = "/configs/" + collection + "/" + filename; |
| } |
| |
| @Override |
| public boolean isWritable() { |
| return true; |
| } |
| |
| @Override |
| public void persist(Map<String, Object> propObjs) { |
| Properties existing = mapToProperties(readIndexerProperties()); |
| existing.putAll(mapToProperties(propObjs)); |
| StringWriter output = new StringWriter(); |
| try { |
| existing.store(output, null); |
| byte[] bytes = output.toString().getBytes(StandardCharsets.UTF_8); |
| if (!zkClient.exists(path, false)) { |
| try { |
| zkClient.makePath(path, false); |
| } catch (NodeExistsException e) {} |
| } |
| zkClient.setData(path, bytes, false); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| log.warn( |
| "Could not persist properties to " + path + " :" + e.getClass(), e); |
| } catch (Exception e) { |
| log.warn( |
| "Could not persist properties to " + path + " :" + e.getClass(), e); |
| } |
| } |
| |
| @Override |
| public Map<String, Object> readIndexerProperties() { |
| Properties props = new Properties(); |
| try { |
| byte[] data = zkClient.getData(path, null, null, false); |
| if (data != null) { |
| props.load(new StringReader(new String(data, StandardCharsets.UTF_8))); |
| } |
| } catch (Exception e) { |
| log.warn( |
| "Could not read DIH properties from " + path + " :" + e.getClass(), e); |
| } |
| return propertiesToMap(props); |
| } |
| } |