/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// $Id$
package com.sk89q.worldedit.world.snapshot;
import com.sk89q.worldedit.world.DataException;
import com.sk89q.worldedit.world.storage.*;
import java.io.File;
import java.io.IOException;
import java.util.Calendar;
import java.util.logging.Logger;
import java.util.zip.ZipFile;
/**
* A snapshot is a backup.
*/
public class Snapshot implements Comparable<Snapshot> {
protected static Logger logger = Logger.getLogger(Snapshot.class.getCanonicalName());
protected File file;
protected String name;
protected Calendar date;
/**
* Construct a snapshot restoration operation.
*
* @param repo a repository
* @param snapshot a snapshot name
*/
public Snapshot(SnapshotRepository repo, String snapshot) {
file = new File(repo.getDirectory(), snapshot);
name = snapshot;
}
/**
* Get a chunk store.
*
* @return a chunk store
* @throws IOException
* @throws DataException
*/
public ChunkStore getChunkStore() throws IOException, DataException {
ChunkStore chunkStore = internalGetChunkStore();
logger.info("WorldEdit: Using " + chunkStore.getClass().getCanonicalName()
+ " for loading snapshot '" + file.getAbsolutePath() + "'");
return chunkStore;
}
/**
* Get a chunk store.
*
* @return a chunk store
* @throws IOException
* @throws DataException
*/
private ChunkStore internalGetChunkStore() throws IOException, DataException {
if (file.getName().toLowerCase().endsWith(".zip")) {
try {
ChunkStore chunkStore = new TrueZipMcRegionChunkStore(file);
if (!chunkStore.isValid()) {
return new TrueZipLegacyChunkStore(file);
}
return chunkStore;
} catch (NoClassDefFoundError e) {
ChunkStore chunkStore = new ZippedMcRegionChunkStore(file);
if (!chunkStore.isValid()) {
return new ZippedLegacyChunkStore(file);
}
return chunkStore;
}
} else if (file.getName().toLowerCase().endsWith(".tar.bz2")
|| file.getName().toLowerCase().endsWith(".tar.gz")
|| file.getName().toLowerCase().endsWith(".tar")) {
try {
ChunkStore chunkStore = new TrueZipMcRegionChunkStore(file);
if (!chunkStore.isValid()) {
return new TrueZipLegacyChunkStore(file);
}
return chunkStore;
} catch (NoClassDefFoundError e) {
throw new DataException("TrueZIP is required for .tar support");
}
} else {
ChunkStore chunkStore = new FileMcRegionChunkStore(file);
if (!chunkStore.isValid()) {
return new FileLegacyChunkStore(file);
}
return chunkStore;
}
}
/**
* Check the zip/tar file it contains the given world.
*
* @return true if the zip/tar file contains the given world
*/
public boolean containsWorld(String worldname) {
try {
if (file.getName().toLowerCase().endsWith(".zip")) {
ZipFile entry = new ZipFile(file);
return (entry.getEntry(worldname) != null
|| entry.getEntry(worldname + "/level.dat") != null);
} else if (file.getName().toLowerCase().endsWith(".tar.bz2")
|| file.getName().toLowerCase().endsWith(".tar.gz")
|| file.getName().toLowerCase().endsWith(".tar")) {
try {
de.schlichtherle.util.zip.ZipFile entry = new de.schlichtherle.util.zip.ZipFile(file);
return entry.getEntry(worldname) != null;
} catch (NoClassDefFoundError e) {
throw new DataException("TrueZIP is required for .tar support");
}
} else {
return (file.getName().equalsIgnoreCase(worldname));
}
} catch (IOException ex) {
// Skip the file, but print an error
logger.info("Could not load snapshot: "
+ file.getPath());
} catch (DataException ex) {
// No truezip, so tar file not supported.
// Dont print, just skip the file.
}
return false;
}
/**
* Get the snapshot's name.
*
* @return the name of the snapshot
*/
public String getName() {
return name;
}
/**
* Get the file for the snapshot.
*
* @return path to the snapshot
*/
public File getFile() {
return file;
}
/**
* Get the date associated with this snapshot.
*
* @return date for the snapshot
*/
public Calendar getDate() {
return date;
}
/**
* Set the date of the snapshot.
*
* @param date the date of the snapshot
*/
public void setDate(Calendar date) {
this.date = date;
}
@Override
public int compareTo(Snapshot o) {
if (o.date == null || date == null) {
// Remove the folder from the name
int i = name.indexOf("/"), j = o.name.indexOf("/");
return name.substring((i > 0 ? 0 : i)).compareTo(o.name.substring((j > 0 ? 0 : j)));
} else {
return date.compareTo(o.date);
}
}
@Override
public boolean equals(Object o) {
return o instanceof Snapshot && file.equals(((Snapshot) o).file);
}
@Override
public int hashCode() {
return file.hashCode();
}
}