diff options
Diffstat (limited to 'src/main/java/com/keuin/kbackupfabric/util/backup')
19 files changed, 0 insertions, 965 deletions
diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/BackupFilesystemUtil.java b/src/main/java/com/keuin/kbackupfabric/util/backup/BackupFilesystemUtil.java deleted file mode 100644 index 28ede70..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/BackupFilesystemUtil.java +++ /dev/null @@ -1,92 +0,0 @@ -package com.keuin.kbackupfabric.util.backup; - -import com.keuin.kbackupfabric.util.ReflectionUtils; -import net.minecraft.server.MinecraftServer; -import net.minecraft.server.dedicated.MinecraftDedicatedServer; -import net.minecraft.server.world.ThreadedAnvilChunkStorage; -import net.minecraft.world.World; - -import java.io.File; -import java.io.IOException; -import java.util.logging.Logger; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -/** - * Functions deal with file name, directory name about Minecraft saves. - */ -public final class BackupFilesystemUtil { - - private static final String BACKUP_SAVE_DIRECTORY_NAME = "backups"; - private static final String INCREMENTAL_BASE_DIRECTORY_NAME = "incremental"; - private static final String backupFileNamePrefix = "kbackup-"; - - @Deprecated - public static String getBackupFileNamePrefix() { - return backupFileNamePrefix; - } - - -// @Deprecated -// public static String getBackupName(String backupFileName) { -// try { -// if (backupFileName.matches(backupFileNamePrefix + ".+\\.zip")) -// return backupFileName.substring(backupFileNamePrefix.length(), backupFileName.length() - 4); -// } catch (IndexOutOfBoundsException ignored) { -// } -// return backupFileName; -// } - - public static boolean isBackupFileExists(String backupFileName, MinecraftServer server) { - File backupFile = new File(getBackupSaveDirectory(server), backupFileName); - return backupFile.isFile(); - } - - public static File getBackupSaveDirectory(MinecraftServer server) { - return new File(server.getRunDirectory(), BACKUP_SAVE_DIRECTORY_NAME); - } - - public static File getIncrementalBackupBaseDirectory(MinecraftServer server) { - return new File(server.getRunDirectory(), INCREMENTAL_BASE_DIRECTORY_NAME); - } - - public static String getLevelPath(MinecraftServer server) throws IOException { - if (!(server instanceof MinecraftDedicatedServer)) - throw new IllegalStateException("This plugin is server-side only."); - String path = (new File(server.getRunDirectory().getCanonicalPath(), ((MinecraftDedicatedServer) server).getLevelName())).getAbsolutePath(); - Logger.getLogger("getLevelPath").info(String.format("Level path: %s", path)); - assert (new File(path)).exists(); - return path; - } - - public static String getWorldDirectoryName(World world) throws NoSuchFieldException, IllegalAccessException { - File saveDir; - ThreadedAnvilChunkStorage threadedAnvilChunkStorage = (ThreadedAnvilChunkStorage) ReflectionUtils.getPrivateField(world.getChunkManager(), "threadedAnvilChunkStorage"); - saveDir = (File) ReflectionUtils.getPrivateField(threadedAnvilChunkStorage, "saveDir"); - return saveDir.getName(); - } - - @Deprecated - public static long getBackupTimeFromBackupFileName(String backupFileName) { - Matcher matcher = Pattern.compile("[0-9]{4}-[0-9]{2}-[0-9]{2}_[0-9]{2}-[0-9]{2}-[0-9]{2}").matcher(backupFileName); - if (matcher.find()) { - String timeString = matcher.group(0); - long timeStamp = BackupNameTimeFormatter.timeStringToEpochSeconds(timeString); - System.out.println(backupFileName + " -> " + timeStamp); - return timeStamp; - } else { - System.err.println("Failed to extract time from " + backupFileName); - } - return -1; - } - - public static String getFriendlyFileSizeString(long sizeBytes) { - double fileSize = sizeBytes * 1.0 / 1024 / 1024; // Default unit is MB - if (fileSize > 1000) - //msgInfo(context, String.format("File size: %.2fGB", fileSize / 1024)); - return String.format("%.2fGB", fileSize / 1024); - else - //msgInfo(context, String.format("File size: %.2fMB", fileSize)); - return String.format("%.2fMB", fileSize); - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/BackupNameTimeFormatter.java b/src/main/java/com/keuin/kbackupfabric/util/backup/BackupNameTimeFormatter.java deleted file mode 100644 index 3811ae8..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/BackupNameTimeFormatter.java +++ /dev/null @@ -1,32 +0,0 @@ -package com.keuin.kbackupfabric.util.backup; - -import java.time.LocalDateTime; -import java.time.ZoneId; -import java.time.ZoneOffset; -import java.time.format.DateTimeFormatter; - -public class BackupNameTimeFormatter { - private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH-mm-ss"); - - @Deprecated - public static String getTimeString() { - return LocalDateTime.now().format(formatter); - } - - public static String localDateTimeToString(LocalDateTime localDateTime) { - return localDateTime.format(formatter); - } - - @Deprecated - public static long timeStringToEpochSeconds(String timeString) { - ZoneId systemZone = ZoneId.systemDefault(); // my timezone - LocalDateTime localDateTime = LocalDateTime.parse(timeString, formatter); - ZoneOffset currentOffsetForMyZone = systemZone.getRules().getOffset(localDateTime); - return localDateTime.toEpochSecond(currentOffsetForMyZone); - } - - public static LocalDateTime timeStringToLocalDateTime(String timeString) { - return LocalDateTime.parse(timeString,formatter); - } - -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollection.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollection.java deleted file mode 100644 index 16d95e6..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollection.java +++ /dev/null @@ -1,65 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental; - -import java.io.Serializable; -import java.util.*; - -public class ObjectCollection implements Serializable { - private final String name; - private final Map<String, ObjectElement> elements; - private final Map<String, ObjectCollection> subCollections; - - ObjectCollection(String name, Set<ObjectElement> elements, Map<String, ObjectCollection> subCollections) { - this.name = Objects.requireNonNull(name); - this.elements = new HashMap<>(); - for (ObjectElement e : elements) { - Objects.requireNonNull(e); - if (this.elements.put(e.getName(), e) != null) { - throw new IllegalStateException("elements conflict with the same name"); - } - } - this.subCollections = new HashMap<>(Objects.requireNonNull(subCollections)); - } - - public String getName() { - return name; - } - - public Set<ObjectElement> getElementSet() { - return new HashSet<>(elements.values()); - } - - public Map<String, ObjectElement> getElementMap() { - return Collections.unmodifiableMap(elements); - } - - public ObjectElement getElement(String name) { - return elements.get(name); - } - - public Set<ObjectCollection> getSubCollectionSet() { - return new HashSet<>(subCollections.values()); - } - - public Map<String, ObjectCollection> getSubCollectionMap() { - return Collections.unmodifiableMap(subCollections); - } - - public ObjectCollection getSubCollection(String name) { - return subCollections.get(name); - } - - @Override - public boolean equals(Object o) { - if (this == o) return true; - if (o == null || getClass() != o.getClass()) return false; - ObjectCollection that = (ObjectCollection) o; - return name.equals(that.name) && - elements.equals(that.elements) && - subCollections.equals(that.subCollections); - } - - @Override - public int hashCode() { - return Objects.hash(name, elements, subCollections); - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollectionFactory.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollectionFactory.java deleted file mode 100644 index 2f3761c..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollectionFactory.java +++ /dev/null @@ -1,55 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental; - -import com.keuin.kbackupfabric.util.PrintUtil; -import com.keuin.kbackupfabric.util.backup.incremental.identifier.FileIdentifierProvider; -import com.keuin.kbackupfabric.util.backup.incremental.identifier.ObjectIdentifier; - -import java.io.File; -import java.io.IOException; -import java.nio.file.Files; -import java.nio.file.Path; -import java.util.*; - -/** - * Incremental backup is implemented as git-like file collection. - * Files are called `objects`, the collection contains all files distinguished by their - * identifiers. Usually, identifier is the combination of hash and other short information (such as size and another hash). - * The identifier should use hashes that are strong enough, to prevent possible collisions. - */ -public class ObjectCollectionFactory<T extends ObjectIdentifier> { - - private final FileIdentifierProvider<T> identifierFactory; - - public ObjectCollectionFactory(FileIdentifierProvider<T> identifierFactory) { - this.identifierFactory = identifierFactory; - } - - public ObjectCollection fromDirectory(File directory, Set<String> ignoredFiles) throws IOException { - final Set<ObjectElement> subFiles = new HashSet<>(); - final Map<String, ObjectCollection> subCollections = new HashMap<>(); - - if (!Objects.requireNonNull(directory).isDirectory()) - throw new IllegalArgumentException("given file is not a directory"); - - for (Iterator<Path> iter = Files.walk(directory.toPath(), 1).iterator(); iter.hasNext(); ) { - Path path = iter.next(); - if (Files.isSameFile(path, directory.toPath())) - continue; - File file = path.toFile(); - if (file.isDirectory()) { - subCollections.put(file.getName(), fromDirectory(file, ignoredFiles)); - } else if (!ignoredFiles.contains(file.getName())) { - subFiles.add(new ObjectElement(file.getName(), identifierFactory.fromFile(file))); - } else { - PrintUtil.info(String.format("Skipping file %s.", file.getName())); - } - } - - return new ObjectCollection(directory.getName(), subFiles, subCollections); - } - - public ObjectCollection fromDirectory(File directory) throws IOException { - return fromDirectory(directory, Collections.emptySet()); - } - -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollectionSerializer.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollectionSerializer.java deleted file mode 100644 index 6f9b792..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectCollectionSerializer.java +++ /dev/null @@ -1,33 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental; - -import java.io.*; -import java.util.Objects; - -/** - * Serialize and deserialize ObjectCollection from/to the disk file. - */ -public class ObjectCollectionSerializer { - public static ObjectCollection fromFile(File file) throws IOException { - Objects.requireNonNull(file); - ObjectCollection collection; - try (FileInputStream fileInputStream = new FileInputStream(file)) { - try (ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream)) { - collection = (ObjectCollection) objectInputStream.readObject(); - } catch (ClassNotFoundException ignored) { - // this should not happen - return null; - } - } - return collection; - } - - public static void toFile(ObjectCollection collection, File file) throws IOException { - Objects.requireNonNull(collection); - Objects.requireNonNull(file); - try (FileOutputStream fileOutputStream = new FileOutputStream(file)) { - try (ObjectOutputStream objectOutputStream = new ObjectOutputStream(fileOutputStream)) { - objectOutputStream.writeObject(collection); - } - } - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectElement.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectElement.java deleted file mode 100644 index cbb886e..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/ObjectElement.java +++ /dev/null @@ -1,60 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental; - -import com.keuin.kbackupfabric.util.backup.incremental.identifier.ObjectIdentifier; - -import java.io.Serializable; -import java.util.Objects; - -/** - * Representing a file in a ObjectCollection. - * Immutable. - */ -public class ObjectElement implements Serializable { - private final String name; - private final ObjectIdentifier identifier; - - public ObjectElement(String name, ObjectIdentifier identifier) { - Objects.requireNonNull(name); - Objects.requireNonNull(identifier); - this.name = name; - this.identifier = identifier; - } - - /** - * Get file name. - * @return the file name. - */ - public String getName() { - return name; - } - - /** - * Get file identifier, which is considered to be different between files with different contents. - * @return the identifier. - */ - public ObjectIdentifier getIdentifier() { - return identifier; - } - - @Override - public boolean equals(Object o) { - if (this == o) return true; - if (o == null || getClass() != o.getClass()) return false; - ObjectElement that = (ObjectElement) o; - return name.equals(that.name) && - identifier.equals(that.identifier); - } - - @Override - public int hashCode() { - return Objects.hash(name, identifier); - } - - @Override - public String toString() { - return "ObjectElement{" + - "name='" + name + '\'' + - ", identifier=" + identifier + - '}'; - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/FileIdentifierProvider.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/FileIdentifierProvider.java deleted file mode 100644 index 3fbe284..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/FileIdentifierProvider.java +++ /dev/null @@ -1,15 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental.identifier; - -import java.io.File; -import java.io.IOException; - -public interface FileIdentifierProvider<T extends ObjectIdentifier> { - /** - * Generate file identifier from a random file. The file is not necessarily in the object base. - * - * @param file the file. - * @return the file identifier. - * @throws IOException when an I/O error occurs. - */ - T fromFile(File file) throws IOException; -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/ObjectIdentifier.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/ObjectIdentifier.java deleted file mode 100644 index aece07d..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/ObjectIdentifier.java +++ /dev/null @@ -1,13 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental.identifier; - -import java.io.Serializable; - -/** - * The identifier distinguishing files in the object collection. - * It should be based on cryptographic hash function in order to prevent possible attacks to the backup system. - * All identifiers should be immutable and implement their own equals method. - * Immutable. - */ -public interface ObjectIdentifier extends Serializable { - String getIdentification(); -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/Sha256Identifier.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/Sha256Identifier.java deleted file mode 100644 index c1c87e1..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/Sha256Identifier.java +++ /dev/null @@ -1,88 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental.identifier; - -import com.keuin.kbackupfabric.util.BytesUtil; - -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.security.MessageDigest; -import java.security.NoSuchAlgorithmException; -import java.util.Objects; - -/** - * Identifier based on sha256. - * Immutable. - */ -public class Sha256Identifier extends SingleHashIdentifier { - - private static final int SHA256_LENGTH = 32; - private static final Sha256Identifier DUMMY = new Sha256Identifier(new byte[SHA256_LENGTH]); // only for using its hash method - private static final FileIdentifierProvider<Sha256Identifier> factory = Sha256Identifier::fromFile; - private static final String marker = "S2"; - - public static Sha256Identifier fromFile(File file) throws IOException { - if (!file.isFile()) { - throw new IllegalArgumentException("file is not a file"); - } - return new Sha256Identifier(DUMMY.hash(file)); - } - - /** - * Load sha-256 from a named file. Only used in StorageObjectLoader. - * - * @param fileName the file name. - * @return identifier. - */ - static Sha256Identifier fromFileName(String fileName) { - if (!fileName.matches(marker + "-[0-9A-Fa-f]{32}")) - return null; - String hexString = fileName.substring(marker.length() + 1); - return new Sha256Identifier(BytesUtil.hexToBytes(hexString)); - } - - public static FileIdentifierProvider<Sha256Identifier> getFactory() { - return factory; - } - - protected Sha256Identifier(byte[] hash) { - super(hash, marker); - Objects.requireNonNull(hash); - if (hash.length != SHA256_LENGTH) { - throw new IllegalStateException(String.format("SHA256 must be %d bytes", SHA256_LENGTH)); - } - } - - @Override - protected byte[] hash(File file) throws IOException { - try { - MessageDigest digest = MessageDigest.getInstance("SHA-256"); - - try (FileInputStream inputStream = new FileInputStream(file)) { - // This does not work. I don't know why -// FileChannel channel = inputStream.getChannel(); -// ByteBuffer buffer = ByteBuffer.allocate(128); -// int readLength; -// while ((readLength = channel.read(buffer)) > 0) -// digest.update(buffer); - - // This also works, without warnings - byte[] readBuffer = new byte[1024 * 1024]; - int readLength; - while ((readLength = inputStream.read(readBuffer)) > 0) - digest.update(readBuffer, 0, readLength); - - // The below lines also works, but the IDE will complain about the while loop -// DigestInputStream digestInputStream = new DigestInputStream(inputStream, digest); -// while(digestInputStream.read() > 0) -// ; - - return digest.digest(); - } - - } catch (NoSuchAlgorithmException ignored) { - // this shouldn't happen - return new byte[SHA256_LENGTH]; - } - } - -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/SingleHashIdentifier.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/SingleHashIdentifier.java deleted file mode 100644 index 0f62f2b..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/SingleHashIdentifier.java +++ /dev/null @@ -1,53 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental.identifier; - -import com.keuin.kbackupfabric.util.BytesUtil; - -import java.io.File; -import java.io.IOException; -import java.util.Arrays; -import java.util.Objects; - -/** - * A simple identifier based on a single hash function. - * Immutable. - */ -public abstract class SingleHashIdentifier implements ObjectIdentifier { - - private final byte[] hash; - private final String type; - - protected SingleHashIdentifier(byte[] hash, String type) { - Objects.requireNonNull(hash); - Objects.requireNonNull(type); - this.hash = Arrays.copyOf(hash, hash.length); - this.type = type; - } - - /** - * The hash function. - * - * @param file the file to be hashed. - * @return the hash bytes. - */ - protected abstract byte[] hash(File file) throws IOException; - - @Override - public String getIdentification() { - return type + "-" + BytesUtil.bytesToHex(hash); - } - - @Override - public boolean equals(Object obj) { - if (!(obj instanceof SingleHashIdentifier)) { - return false; - } - return Arrays.equals(hash, ((SingleHashIdentifier) obj).hash); - } - - @Override - public int hashCode() { - int result = Objects.hash(type); - result = 31 * result + Arrays.hashCode(hash); - return result; - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/StorageObjectLoader.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/StorageObjectLoader.java deleted file mode 100644 index 96bc295..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/identifier/StorageObjectLoader.java +++ /dev/null @@ -1,25 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental.identifier; - -import java.io.File; -import java.util.Objects; - -public class StorageObjectLoader { - /** - * Get identifier from storage file. - * - * @param file storage file. - * @return identifier. If failed, return null. - */ - public static ObjectIdentifier asIdentifier(File file) { - Objects.requireNonNull(file); - String fileName = file.getName(); - ObjectIdentifier identifier; - - identifier = Sha256Identifier.fromFileName(fileName); - if (identifier != null) - return identifier; - - // Add more identifiers. - return null; - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/manager/IncrementalBackupStorageManager.java b/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/manager/IncrementalBackupStorageManager.java deleted file mode 100644 index 6fd339b..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/incremental/manager/IncrementalBackupStorageManager.java +++ /dev/null @@ -1,188 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.incremental.manager; - -import com.keuin.kbackupfabric.util.PrintUtil; -import com.keuin.kbackupfabric.util.backup.incremental.ObjectCollection; -import com.keuin.kbackupfabric.util.backup.incremental.ObjectElement; -import com.keuin.kbackupfabric.util.backup.incremental.identifier.ObjectIdentifier; -import com.keuin.kbackupfabric.util.backup.incremental.identifier.StorageObjectLoader; - -import java.io.File; -import java.io.FileNotFoundException; -import java.io.IOException; -import java.nio.file.Files; -import java.nio.file.Path; -import java.nio.file.Paths; -import java.util.*; - -import static org.apache.commons.io.FileUtils.forceDelete; - -public class IncrementalBackupStorageManager { - - private final Path backupStorageBase; - private final Map<ObjectIdentifier, File> map = new HashMap<>(); - private boolean loaded = false; - - public IncrementalBackupStorageManager(Path backupStorageBase) { - this.backupStorageBase = backupStorageBase; - } - - /** - * Add a object collection to storage base. - * @param collection the collection. - * @return objects copied to the base. - * @throws IOException I/O Error. - */ - public int addObjectCollection(ObjectCollection collection, File collectionBasePath) throws IOException { - if (!backupStorageBase.toFile().isDirectory()) { - if (!backupStorageBase.toFile().mkdirs()) - throw new IOException("Backup storage base directory does not exist, and failed to create it."); - } - Objects.requireNonNull(collection); - Objects.requireNonNull(collectionBasePath); - - int copyCount = 0; - - // copy sub files - for (Map.Entry<String, ObjectElement> entry : collection.getElementMap().entrySet()) { - File copyDestination = new File(backupStorageBase.toFile(), entry.getValue().getIdentifier().getIdentification()); - if (!baseContainsObject(entry.getValue())) { - // element does not exist. copy. - Files.copy(Paths.get(collectionBasePath.getAbsolutePath(), entry.getKey()), copyDestination.toPath()); - ++copyCount; - } - } - - //copy sub dirs recursively - for (Map.Entry<String, ObjectCollection> entry : collection.getSubCollectionMap().entrySet()) { - File newBase = new File(collectionBasePath, entry.getKey()); - copyCount += addObjectCollection(entry.getValue(), newBase); - } - - return copyCount; - } - - /** - * Restore an object collection from the storage base. i.e., restore the save from backup storage. - * @param collection the collection to be restored. - * @param collectionBasePath save path of the collection. - * @return objects restored from the base. - * @throws IOException I/O Error. - */ - public int restoreObjectCollection(ObjectCollection collection, File collectionBasePath) throws IOException { - Objects.requireNonNull(collection); - Objects.requireNonNull(collectionBasePath); - - int copyCount = 0; - - // touch directory - if (!collectionBasePath.exists()) { - int retryCounter = 0; - boolean success = false; - while (retryCounter++ < 5) { - if (collectionBasePath.mkdirs()) { - success = true; - break; - } - } - if (!success) { - throw new IOException("Failed to create directory " + collectionBasePath.getAbsolutePath()); - } - } - - // copy sub files - for (Map.Entry<String, ObjectElement> entry : collection.getElementMap().entrySet()) { - File copySource = new File(backupStorageBase.toFile(), entry.getValue().getIdentifier().getIdentification()); - File copyTarget = new File(collectionBasePath.getAbsolutePath(), entry.getKey()); - - if (!baseContainsObject(entry.getValue())) { - throw new IOException(String.format("File %s does not exist in the base.", copySource.getName())); - } - if (copyTarget.exists()) { - boolean successDeleting = false; - for (int i = 0; i < 5; ++i) { - try { - forceDelete(copyTarget); - successDeleting = true; - break; - } catch (FileNotFoundException ignored) { - break; - } catch (IOException e) { - PrintUtil.error(String.format("Failed to delete file %s, retry.", copyTarget.getName())); - } - } - if (!successDeleting) { - String msg = String.format("Failed to delete file %s.", copyTarget.getName()); - PrintUtil.error(msg); - throw new IOException(msg); - } - } - - Files.copy(copySource.toPath(), copyTarget.toPath()); - ++copyCount; - } - - //copy sub dirs recursively - for (Map.Entry<String, ObjectCollection> entry : collection.getSubCollectionMap().entrySet()) { - File newBase = new File(collectionBasePath, entry.getKey()); - copyCount += restoreObjectCollection(entry.getValue(), newBase); - } - - return copyCount; - } - - public int cleanUnusedObjects(Iterable<ObjectCollection> collectionIterable) { - // construct object list in memory - Set<String> objects = new HashSet<>(); -// backupStorageBase - - for (ObjectCollection collection : collectionIterable) { - for (ObjectElement ele : collection.getElementMap().values()) { - - } - } - throw new RuntimeException("not impl"); - } - - /** - * Check all objects, return unused ones. - * - * @return the unused ones. - */ - private Map<ObjectIdentifier, File> markUnusedObjects() { - throw new RuntimeException("not impl"); - } - - /** - * Check if the backup base contains given element. - * - * @param objectElement the element. - * @return true or false. - */ - private boolean baseContainsObject(ObjectElement objectElement) { - // This may be extended to use more variants of hash functions and combinations of other attributes (such as file size) - return (new File(backupStorageBase.toFile(), objectElement.getIdentifier().getIdentification())).exists(); - } - - private void lazyLoadStorage() throws IOException { - if (!loaded) { - loadStorage(); - loaded = true; - } - } - - private synchronized void loadStorage() throws IOException { - map.clear(); - Files.walk(backupStorageBase, 1).forEach(path -> { - File file = path.toFile(); - ObjectIdentifier identifier = StorageObjectLoader.asIdentifier(file); - if (identifier == null) { - map.clear(); - throw new IllegalStateException(String.format( - "Bad storage object %s: cannot recognize identifier.", file.getName() - )); - } - map.put(identifier, file); - }); - } - -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/name/BackupFileNameEncoder.java b/src/main/java/com/keuin/kbackupfabric/util/backup/name/BackupFileNameEncoder.java deleted file mode 100644 index 8ebc7ff..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/name/BackupFileNameEncoder.java +++ /dev/null @@ -1,64 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.name; - -import java.time.LocalDateTime; -import java.time.format.DateTimeFormatter; - -/** - * Encode and decode backup file name for a specific backup type. - */ -public interface BackupFileNameEncoder { - - /** - * Construct full backup file name from custom name and creation time. - * @param customName the custom name. If the custom name contains invalid chars, an exception will be thrown. - * @param time the creation time. - * @return the file name. - */ - String encode(String customName, LocalDateTime time); - - /** - * Extract custom and backup time from backup file name. - * - * @param fileName the backup file name. - * @return the information. If the given file name is invalid, return null. - */ - BackupBasicInformation decode(String fileName); - - default boolean isValidFileName(String fileName) { - return decode(fileName) != null; - } - - /** - * Check if the given string is a valid custom backup name. - * - * @param customName the custom backup name. - * @return if the name is valid. - */ - default boolean isValidCustomName(String customName) { - final char[] ILLEGAL_CHARACTERS = {'/', '\n', '\r', '\t', '\0', '\f', '`', '?', '*', '\\', '<', '>', '|', '\"', ':'}; - for (char c : ILLEGAL_CHARACTERS) { - if (customName.contains(String.valueOf(c))) { - return false; - } - } - return true; - } - - class BackupBasicInformation { - - public final String customName; - public final LocalDateTime time; - - private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm.ss"); - - protected BackupBasicInformation(String customName, LocalDateTime time) { - this.customName = customName; - this.time = time; - } - - @Override - public String toString() { - return String.format("%s, %s", customName, time.format(formatter)); - } - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/name/IncrementalBackupFileNameEncoder.java b/src/main/java/com/keuin/kbackupfabric/util/backup/name/IncrementalBackupFileNameEncoder.java deleted file mode 100644 index 926f47c..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/name/IncrementalBackupFileNameEncoder.java +++ /dev/null @@ -1,37 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.name; - -import java.time.LocalDateTime; -import java.time.format.DateTimeFormatter; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -public class IncrementalBackupFileNameEncoder implements BackupFileNameEncoder { - private static final String backupFileNamePrefix = "incremental"; - private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH-mm-ss"); - - // TODO: make this private and use singleton pattern - public IncrementalBackupFileNameEncoder() { - } - - @Override - public String encode(String customName, LocalDateTime time) { - if (!isValidCustomName(customName)) - throw new IllegalArgumentException("Invalid custom name"); - String timeString = time.format(formatter); - return backupFileNamePrefix + "-" + timeString + "_" + customName + ".kbi"; - } - - @Override - public BackupFileNameEncoder.BackupBasicInformation decode(String fileName) { - Pattern pattern = Pattern.compile( - "^" + backupFileNamePrefix + "-" + "([0-9]{4}-[0-9]{2}-[0-9]{2}_[0-9]{2}-[0-9]{2}-[0-9]{2})_(.+)\\.kbi" + "$" - ); - Matcher matcher = pattern.matcher(fileName); - if (matcher.find()) { - String timeString = matcher.group(1); - String customName = matcher.group(2); - return new BackupFileNameEncoder.BackupBasicInformation(customName, LocalDateTime.parse(timeString, formatter)); - } - return null; - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/name/PrimitiveBackupFileNameEncoder.java b/src/main/java/com/keuin/kbackupfabric/util/backup/name/PrimitiveBackupFileNameEncoder.java deleted file mode 100644 index ef15ae7..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/name/PrimitiveBackupFileNameEncoder.java +++ /dev/null @@ -1,33 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.name; - -import java.time.LocalDateTime; -import java.time.format.DateTimeFormatter; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -public class PrimitiveBackupFileNameEncoder implements BackupFileNameEncoder { - private static final String backupFileNamePrefix = "kbackup"; - private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH-mm-ss"); - - @Override - public String encode(String customName, LocalDateTime time) { - if (!isValidCustomName(customName)) - throw new IllegalArgumentException("Invalid custom name"); - String timeString = time.format(formatter); - return backupFileNamePrefix + "-" + timeString + "_" + customName + ".zip"; - } - - @Override - public BackupBasicInformation decode(String fileName) { - Pattern pattern = Pattern.compile( - "^" + backupFileNamePrefix + "-" + "([0-9]{4}-[0-9]{2}-[0-9]{2}_[0-9]{2}-[0-9]{2}-[0-9]{2})_(.+)\\.zip" + "$" - ); - Matcher matcher = pattern.matcher(fileName); - if (matcher.find()) { - String timeString = matcher.group(1); - String customName = matcher.group(2); - return new BackupBasicInformation(customName, LocalDateTime.parse(timeString, formatter)); - } - return null; - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/provider/AvailableBackupProvider.java b/src/main/java/com/keuin/kbackupfabric/util/backup/provider/AvailableBackupProvider.java deleted file mode 100644 index caa0e84..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/provider/AvailableBackupProvider.java +++ /dev/null @@ -1,8 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.provider; - -/** - * List all backup in disk. Provide their basic information as soon as possible. - */ -public class AvailableBackupProvider { - // TODO: remove obsolete impl. in command user interface. Use this instead. -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/provider/IncrementalBackupInformation.java b/src/main/java/com/keuin/kbackupfabric/util/backup/provider/IncrementalBackupInformation.java deleted file mode 100644 index 861d210..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/provider/IncrementalBackupInformation.java +++ /dev/null @@ -1,13 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.provider; - -import com.keuin.kbackupfabric.util.backup.name.BackupFileNameEncoder; - -import java.time.LocalDateTime; - -public class IncrementalBackupInformation extends BackupFileNameEncoder.BackupBasicInformation { - // TODO: show total size for incremental backup - - public IncrementalBackupInformation(String customName, LocalDateTime time) { - super(customName, time); - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/provider/PrimitiveBackupInformation.java b/src/main/java/com/keuin/kbackupfabric/util/backup/provider/PrimitiveBackupInformation.java deleted file mode 100644 index d3d2db8..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/provider/PrimitiveBackupInformation.java +++ /dev/null @@ -1,14 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.provider; - -import com.keuin.kbackupfabric.util.backup.name.BackupFileNameEncoder; - -import java.time.LocalDateTime; - -public class PrimitiveBackupInformation extends BackupFileNameEncoder.BackupBasicInformation { - public final long sizeBytes; - - public PrimitiveBackupInformation(String customName, LocalDateTime time, long sizeBytes) { - super(customName, time); - this.sizeBytes = sizeBytes; - } -} diff --git a/src/main/java/com/keuin/kbackupfabric/util/backup/suggestion/BackupNameSuggestionProvider.java b/src/main/java/com/keuin/kbackupfabric/util/backup/suggestion/BackupNameSuggestionProvider.java deleted file mode 100644 index 01152c2..0000000 --- a/src/main/java/com/keuin/kbackupfabric/util/backup/suggestion/BackupNameSuggestionProvider.java +++ /dev/null @@ -1,77 +0,0 @@ -package com.keuin.kbackupfabric.util.backup.suggestion; - -import com.mojang.brigadier.suggestion.SuggestionProvider; -import com.mojang.brigadier.suggestion.Suggestions; -import com.mojang.brigadier.suggestion.SuggestionsBuilder; -import net.minecraft.server.command.ServerCommandSource; - -import java.io.File; -import java.util.ArrayList; -import java.util.List; -import java.util.Locale; -import java.util.concurrent.CompletableFuture; - -public class BackupNameSuggestionProvider { - - private static final List<String> candidateCacheList = new ArrayList<>(); - private static final Object syncSetDirectory = new Object(); - private static final Object syncCache = new Object(); - private static final long CACHE_TTL = 8000; - private static String backupSaveDirectory; - private static long cacheUpdateTime = 0; - - public static void setBackupSaveDirectory(String backupSaveDirectory) { - synchronized (syncSetDirectory) { - BackupNameSuggestionProvider.backupSaveDirectory = backupSaveDirectory; - } - // Immediately perform an update - updateCandidateList(); - } - - public static void updateCandidateList() { - synchronized (syncCache) { - try { - File file = new File(backupSaveDirectory); - candidateCacheList.clear(); - File[] files = file.listFiles(); - if (files == null) - return; - for (File f : files) - candidateCacheList.add(f.getName()); - cacheUpdateTime = System.currentTimeMillis(); - } catch (NullPointerException ignored) { - } - } - } - -// private static void updateCandidateList(Collection<String> stringCollection) { -// candidateList.clear(); -// candidateList.addAll(stringCollection); -// } - - public static SuggestionProvider<ServerCommandSource> getProvider() { - return (context, builder) -> getCompletableFuture(builder); - } - - private static CompletableFuture<Suggestions> getCompletableFuture(SuggestionsBuilder builder) { - if (isCacheExpired()) - updateCandidateList(); - String remaining = builder.getRemaining().toLowerCase(Locale.ROOT); - synchronized (syncCache) { - if (candidateCacheList.isEmpty()) { // If the list is empty then return no suggestions - return Suggestions.empty(); // No suggestions - } - - for (String string : candidateCacheList) { // Iterate through the supplied list - if (string.toLowerCase(Locale.ROOT).startsWith(remaining)) { - builder.suggest(string); // Add every single entry to suggestions list. - } - } - } - return builder.buildFuture(); // Create the CompletableFuture containing all the suggestions - } - - private static boolean isCacheExpired() { - return System.currentTimeMillis() - cacheUpdateTime > CACHE_TTL || cacheUpdateTime == 0; - } -} |