| /* |
| * 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.lucene.directory; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import com.google.common.collect.Maps; |
| import org.apache.commons.io.FileUtils; |
| import org.jetbrains.annotations.Nullable; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * Represents the index metadata file content as present in index-details.txt |
| */ |
| final class IndexMeta implements Comparable<IndexMeta> { |
| public static final String DIR_PREFIX = "dir."; |
| final String indexPath; |
| final long creationTime; |
| final int metaFormatVersion = 1; |
| private final Map<String, String> properties; |
| |
| public IndexMeta(String indexPath) { |
| this(indexPath, System.currentTimeMillis(), Collections.emptyMap()); |
| } |
| |
| public IndexMeta(String indexPath, long creationTime) { |
| this(indexPath, creationTime, Collections.emptyMap()); |
| } |
| |
| public IndexMeta(String indexPath, long creationTime, Map<String, String> properties) { |
| this.indexPath = indexPath; |
| this.creationTime = creationTime; |
| this.properties = new HashMap<>(properties); |
| } |
| |
| public IndexMeta(File file) throws IOException { |
| Properties p = loadFromFile(file); |
| this.indexPath = checkNotNull(p.getProperty("indexPath")); |
| this.creationTime = Long.valueOf(checkNotNull(p.getProperty("creationTime"))); |
| this.properties = new HashMap<>(Maps.fromProperties(p)); |
| } |
| |
| public void addDirectoryMapping(String jcrDirName, String fsDirName){ |
| properties.put(keyFromFSDirName(fsDirName), jcrDirName); |
| } |
| |
| @Nullable |
| public String getJcrNameFromFSName(String fsDirName) { |
| String nameKey = keyFromFSDirName(fsDirName); |
| for (Map.Entry<String, String> e : properties.entrySet()) { |
| if (nameKey.equals(e.getKey())){ |
| return e.getValue(); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the file system name for the given JCR name which |
| * represents a directory on the file system |
| */ |
| @Nullable |
| public String getFSNameFromJCRName(String jcrDirName) { |
| for (Map.Entry<String, String> e : properties.entrySet()) { |
| if (e.getKey().startsWith(DIR_PREFIX) && jcrDirName.equals(e.getValue())){ |
| return e.getKey().substring(DIR_PREFIX.length()); |
| } |
| } |
| return null; |
| } |
| |
| public void writeTo(File file) throws IOException { |
| Properties p = new Properties(); |
| p.putAll(properties); |
| p.setProperty("metaFormatVersion", String.valueOf(metaFormatVersion)); |
| p.setProperty("indexPath", indexPath); |
| p.setProperty("creationTime", String.valueOf(creationTime)); |
| OutputStream os = null; |
| try { |
| os = new BufferedOutputStream(new FileOutputStream(file)); |
| p.store(os, "Index metadata"); |
| } finally { |
| org.apache.commons.io.IOUtils.closeQuietly(os); |
| } |
| } |
| |
| @Override |
| public int compareTo(IndexMeta o) { |
| return Long.compare(creationTime, o.creationTime); |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("%s, %tc", indexPath, creationTime); |
| } |
| |
| private static String keyFromFSDirName(String fsDirName) { |
| return DIR_PREFIX + fsDirName; |
| } |
| |
| private static Properties loadFromFile(File file) throws IOException { |
| InputStream is = null; |
| try { |
| is = FileUtils.openInputStream(file); |
| Properties p = new Properties(); |
| p.load(is); |
| return p; |
| } finally { |
| org.apache.commons.io.IOUtils.closeQuietly(is); |
| } |
| } |
| } |
| |