| /* |
| * 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.importer; |
| |
| import java.io.File; |
| import java.io.FileFilter; |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import com.google.common.collect.ImmutableMap; |
| import org.apache.commons.io.filefilter.DirectoryFileFilter; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Represents the index data created by oak-run tooling on the file system. |
| * It looks for 'indexer-info.properties' file in given directory to read the |
| * check point information. |
| * |
| * Then for each sub directory it looks for 'index-details.txt' file |
| * which contains index specific implementation details. It looks for |
| * property 'indexPath' which is used to associate the index data to |
| * index location in repository |
| */ |
| public class IndexerInfo { |
| /** |
| * File name stored in final index directory which contains meta |
| * information like checkpoint details. This can be used by |
| * importer while importing the indexes |
| */ |
| public static final String INDEXER_META = "indexer-info.properties"; |
| |
| /** |
| * Name of meta file which stores the index related meta information |
| * in properties file format |
| */ |
| public static final String INDEX_METADATA_FILE_NAME = "index-details.txt"; |
| |
| /** |
| * Property name in index-details.txt which refers to the |
| * index path in repository |
| */ |
| public static final String PROP_INDEX_PATH = "indexPath"; |
| |
| public final String checkpoint; |
| private final File rootDir; |
| |
| public IndexerInfo(File rootDir, String checkpoint) { |
| this.rootDir = rootDir; |
| this.checkpoint = checkNotNull(checkpoint); |
| } |
| |
| public void save() throws IOException { |
| File infoFile = new File(rootDir, INDEXER_META); |
| Properties p = new Properties(); |
| p.setProperty("checkpoint", checkpoint); |
| PropUtils.writeTo(p, infoFile, "Indexer info"); |
| } |
| |
| public Map<String, File> getIndexes() throws IOException { |
| ImmutableMap.Builder<String, File> indexes = ImmutableMap.builder(); |
| for (File dir : rootDir.listFiles(((FileFilter) DirectoryFileFilter.DIRECTORY))) { |
| File metaFile = new File(dir, INDEX_METADATA_FILE_NAME); |
| if (metaFile.exists()) { |
| Properties p = PropUtils.loadFromFile(metaFile); |
| String indexPath = p.getProperty(PROP_INDEX_PATH); |
| if (indexPath != null) { |
| indexes.put(indexPath, dir); |
| } |
| } |
| } |
| return indexes.build(); |
| } |
| |
| public static IndexerInfo fromDirectory(File rootDir) throws IOException { |
| File infoFile = new File(rootDir, INDEXER_META); |
| checkArgument(infoFile.exists(), "No [%s] file found in [%s]. Not a valid exported index " + |
| "directory", INDEXER_META, rootDir.getAbsolutePath()); |
| Properties p = PropUtils.loadFromFile(infoFile); |
| return new IndexerInfo( |
| rootDir, |
| PropUtils.getProp(p, "checkpoint") |
| ); |
| } |
| } |