mirror of
https://github.com/plexusorg/Plex-FAWE.git
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236 lines
6.3 KiB
Java
236 lines
6.3 KiB
Java
// $Id$
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/*
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* WorldEdit
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* Copyright (C) 2010 sk89q <http://www.sk89q.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.snapshots;
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import com.sk89q.worldedit.data.MissingWorldException;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.Collections;
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import java.util.List;
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/**
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*
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* @author sk89q
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*/
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public class SnapshotRepository {
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/**
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* Stores the directory the snapshots come from.
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*/
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protected File dir;
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/**
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* List of date parsers.
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*/
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protected List<SnapshotDateParser> dateParsers = new ArrayList<SnapshotDateParser>();
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/**
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* Create a new instance of a repository.
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*
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* @param dir
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*/
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public SnapshotRepository(File dir) {
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this.dir = dir;
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// If folder dont exist, make it.
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dir.mkdirs();
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dateParsers.add(new YYMMDDHHIISSParser());
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dateParsers.add(new ModificationTimerParser());
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}
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/**
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* Create a new instance of a repository.
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*
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* @param dir
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*/
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public SnapshotRepository(String dir) {
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this(new File(dir));
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}
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/**
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* Get a list of snapshots in a directory. The newest snapshot is
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* near the top of the array.
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*
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* @param newestFirst
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* @return
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*/
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public List<Snapshot> getSnapshots(boolean newestFirst, String worldname) throws MissingWorldException {
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FilenameFilter filter = new FilenameFilter() {
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public boolean accept(File dir, String name) {
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File f = new File(dir, name);
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return isValidSnapshot(f);
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}
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};
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File[] snapshotFiles = dir.listFiles();
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List<Snapshot> list = new ArrayList<Snapshot>(snapshotFiles.length);
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for (File file : snapshotFiles) {
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if (isValidSnapshot(file)) {
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Snapshot snapshot = new Snapshot(this, file.getName());
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if (snapshot.containsWorld(worldname)) {
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detectDate(snapshot);
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list.add(snapshot);
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}
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} else if (file.isDirectory() && file.getName().equalsIgnoreCase(worldname)) {
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for (String name : file.list(filter)) {
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Snapshot snapshot = new Snapshot(this, file.getName() + "/" + name);
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detectDate(snapshot);
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list.add(snapshot);
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}
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}
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}
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if (newestFirst) {
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Collections.sort(list, Collections.reverseOrder());
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} else {
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Collections.sort(list);
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}
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return list;
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}
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/**
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* Get the first snapshot after a date.
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*
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* @param date
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* @return
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*/
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public Snapshot getSnapshotAfter(Calendar date, String world) throws MissingWorldException {
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List<Snapshot> snapshots = getSnapshots(true, world);
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Snapshot last = null;
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for (Snapshot snapshot : snapshots) {
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if (snapshot.getDate() != null
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&& snapshot.getDate().before(date)) {
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return last;
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}
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last = snapshot;
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}
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return last;
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}
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/**
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* Get the first snapshot before a date.
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*
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* @param date
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* @return
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*/
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public Snapshot getSnapshotBefore(Calendar date, String world) throws MissingWorldException {
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List<Snapshot> snapshots = getSnapshots(false, world);
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Snapshot last = null;
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for (Snapshot snapshot : snapshots) {
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if (snapshot.getDate().after(date)) {
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return last;
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}
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last = snapshot;
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}
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return last;
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}
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/**
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* Attempt to detect a snapshot's date and assign it.
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*
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* @param snapshot
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*/
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protected void detectDate(Snapshot snapshot) {
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for (SnapshotDateParser parser : dateParsers) {
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Calendar date = parser.detectDate(snapshot.getFile());
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if (date != null) {
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snapshot.setDate(date);
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return;
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}
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}
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snapshot.setDate(null);
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}
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/**
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* Get the default snapshot.
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*
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* @return
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*/
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public Snapshot getDefaultSnapshot(String world) throws MissingWorldException {
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List<Snapshot> snapshots = getSnapshots(true, world);
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if (snapshots.size() == 0) {
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return null;
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}
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return snapshots.get(0);
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}
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/**
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* Check to see if a snapshot is valid.
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*
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* @param snapshot
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* @return whether it is a valid snapshot
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*/
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public boolean isValidSnapshotName(String snapshot) {
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return isValidSnapshot(new File(dir, snapshot));
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}
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/**
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* Check to see if a snapshot is valid.
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*
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* @param f
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* @return whether it is a valid snapshot
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*/
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protected boolean isValidSnapshot(File f) {
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if (!f.getName().matches("^[A-Za-z0-9_\\- \\./\\\\'\\$@~!%\\^\\*\\(\\)\\[\\]\\+\\{\\},\\?]+$")) {
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return false;
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}
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return (f.isDirectory() && (new File(f, "level.dat")).exists())
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|| (f.isFile() && (f.getName().toLowerCase().endsWith(".zip")
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|| f.getName().toLowerCase().endsWith(".tar.bz2")
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|| f.getName().toLowerCase().endsWith(".tar.gz")
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|| f.getName().toLowerCase().endsWith(".tar")));
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}
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/**
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* Get a snapshot.
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*
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* @param name
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* @return
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* @throws InvalidSnapshotException
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*/
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public Snapshot getSnapshot(String name) throws InvalidSnapshotException {
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if (!isValidSnapshotName(name)) {
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throw new InvalidSnapshotException();
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}
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return new Snapshot(this, name);
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}
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/**
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* Get the snapshot directory.
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*
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* @return
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*/
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public File getDirectory() {
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return dir;
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}
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}
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