| /* |
| * 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; |
| |
| import java.net.URI; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Locale; |
| import java.util.Objects; |
| import java.util.Optional; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| class OldBackupDirectory implements Comparable<OldBackupDirectory> { |
| private static final Pattern dirNamePattern = Pattern.compile("^snapshot[.](.*)$"); |
| |
| private URI basePath; |
| private String dirName; |
| private Optional<Date> timestamp = Optional.empty(); |
| |
| public OldBackupDirectory(URI basePath, String dirName) { |
| this.dirName = Objects.requireNonNull(dirName); |
| this.basePath = Objects.requireNonNull(basePath); |
| Matcher m = dirNamePattern.matcher(dirName); |
| if (m.find()) { |
| try { |
| this.timestamp = Optional.of(new SimpleDateFormat(SnapShooter.DATE_FMT, Locale.ROOT).parse(m.group(1))); |
| } catch (ParseException e) { |
| this.timestamp = Optional.empty(); |
| } |
| } |
| } |
| |
| public URI getPath() { |
| return this.basePath.resolve(dirName); |
| } |
| |
| public String getDirName() { |
| return dirName; |
| } |
| |
| public Optional<Date> getTimestamp() { |
| return timestamp; |
| } |
| |
| @Override |
| public int compareTo(OldBackupDirectory that) { |
| if(this.timestamp.isPresent() && that.timestamp.isPresent()) { |
| return that.timestamp.get().compareTo(this.timestamp.get()); |
| } |
| // Use absolute value of path in case the time-stamp is missing on either side. |
| return that.getPath().compareTo(this.getPath()); |
| } |
| } |