| /* |
| * 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.jackrabbit.oak.plugins.index.solr.query; |
| |
| import java.util.Collection; |
| import java.util.Set; |
| |
| import com.google.common.collect.Sets; |
| import org.apache.jackrabbit.oak.commons.PathUtils; |
| import org.apache.jackrabbit.oak.spi.query.Filter; |
| import org.apache.jackrabbit.oak.spi.state.ChildNodeEntry; |
| import org.apache.jackrabbit.oak.spi.state.NodeState; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.INDEX_DEFINITIONS_NAME; |
| import static org.apache.jackrabbit.oak.plugins.index.solr.util.SolrIndexInitializer.isSolrIndexNode; |
| |
| /** |
| * Lookup for Solr indexes to be used for a given {@link Filter}. |
| */ |
| class SolrIndexLookup { |
| |
| private static final Logger log = LoggerFactory.getLogger(SolrIndexLookup.class); |
| |
| private final NodeState root; |
| |
| SolrIndexLookup(NodeState root) { |
| this.root = root; |
| } |
| |
| Collection<String> collectIndexNodePaths(Filter filter) { |
| return collectIndexNodePaths(filter, true); |
| } |
| |
| private Collection<String> collectIndexNodePaths(Filter filter, boolean recurse) { |
| Set<String> paths = Sets.newHashSet(); |
| |
| collectIndexNodePaths(root, "/", paths); |
| |
| if (recurse) { |
| StringBuilder sb = new StringBuilder(); |
| NodeState nodeState = root; |
| for (String element : PathUtils.elements(filter.getPath())) { |
| nodeState = nodeState.getChildNode(element); |
| collectIndexNodePaths(nodeState, |
| sb.append("/").append(element).toString(), |
| paths); |
| } |
| } |
| |
| return paths; |
| } |
| |
| private static void collectIndexNodePaths(NodeState nodeState, String parentPath, Collection<String> paths) { |
| NodeState state = nodeState.getChildNode(INDEX_DEFINITIONS_NAME); |
| for (ChildNodeEntry entry : state.getChildNodeEntries()) { |
| if (isSolrIndexNode(entry.getNodeState())) { |
| String indexNodePath = createIndexNodePath(parentPath, entry.getName()); |
| log.debug("found Solr index node at {}", indexNodePath); |
| paths.add(indexNodePath); |
| } |
| } |
| } |
| |
| private static String createIndexNodePath(String parentPath, String name) { |
| return PathUtils.concat(parentPath, INDEX_DEFINITIONS_NAME, name); |
| } |
| } |