private void Defrag(IConfiguration config)
{
var origFile = new File(GetAbsolutePath());
if (origFile.Exists())
{
try
{
var backupFile = GetAbsolutePath() + ".defrag.backup";
IIdMapping mapping = new InMemoryIdMapping();
// new
// BTreeIDMapping(getAbsolutePath()+".defrag.mapping",4096,1,1000);
var defragConfig = new DefragmentConfig(GetAbsolutePath(), backupFile
, mapping);
defragConfig.ForceBackupDelete(true);
// FIXME Cloning is ugly - wrap original in Decorator within
// DefragContext instead?
var clonedConfig = (IConfiguration) ((IDeepClone) config).DeepClone(null
);
defragConfig.Db4oConfig(clonedConfig);
Db4objects.Db4o.Defragment.Defragment.Defrag(defragConfig, new _IDefragmentListener_64
());
}
catch (IOException e)
{
Runtime.PrintStackTrace(e);
}
}
}
private DefragmentConfig NewDefragmentConfig(string sourceFile, string backupFile
)
{
var config = new DefragmentConfig(sourceFile, backupFile);
config.Db4oConfig(NewConfiguration());
return config;
}
/// <exception cref="System.IO.IOException"></exception>
private void Defragment(bool registerTranslator)
{
DefragmentConfig defragConfig = new DefragmentConfig(TempFile());
defragConfig.Db4oConfig(Config(registerTranslator));
defragConfig.ForceBackupDelete(true);
Db4objects.Db4o.Defragment.Defragment.Defrag(defragConfig);
}
protected override IObjectContainer CreateDatabase(IConfiguration config)
{
Sharpen.IO.File origFile = new Sharpen.IO.File(GetAbsolutePath());
if (origFile.Exists())
{
try
{
string backupFile = GetAbsolutePath() + ".defrag.backup";
IIdMapping mapping = new InMemoryIdMapping();
// new
// BTreeIDMapping(getAbsolutePath()+".defrag.mapping",4096,1,1000);
DefragmentConfig defragConfig = new DefragmentConfig(GetAbsolutePath(), backupFile
, mapping);
defragConfig.ForceBackupDelete(true);
// FIXME Cloning is ugly - wrap original in Decorator within
// DefragContext instead?
IConfiguration clonedConfig = (IConfiguration)((IDeepClone)config).DeepClone(null
);
defragConfig.Db4oConfig(clonedConfig);
Db4objects.Db4o.Defragment.Defragment.Defrag(defragConfig, new _IDefragmentListener_30
());
}
catch (IOException e)
{
Sharpen.Runtime.PrintStackTrace(e);
}
}
return base.CreateDatabase(config);
}
/// <exception cref="System.IO.IOException"></exception>
public DefragmentServicesImpl(DefragmentConfig defragConfig, IDefragmentListener
listener)
{
_listener = listener;
Config4Impl originalConfig = (Config4Impl)defragConfig.Db4oConfig();
IStorage storage = defragConfig.BackupStorage();
if (defragConfig.ReadOnly())
{
storage = new NonFlushingStorage(storage);
}
Config4Impl sourceConfig = PrepareConfig(originalConfig, storage, defragConfig.ReadOnly
());
_sourceDb = (LocalObjectContainer)Db4oFactory.OpenFile(sourceConfig, defragConfig
.TempPath()).Ext();
_sourceDb.ShowInternalClasses(true);
defragConfig.Db4oConfig().BlockSize(_sourceDb.BlockSize());
if (!originalConfig.GenerateCommitTimestamps().DefiniteNo())
{
defragConfig.Db4oConfig().GenerateCommitTimestamps(_sourceDb.Config().GenerateCommitTimestamps
().DefiniteYes());
}
_targetDb = FreshTargetFile(defragConfig);
_mapping = defragConfig.Mapping();
_mapping.Open();
_defragConfig = defragConfig;
}
/// <exception cref="System.IO.IOException"></exception>
public DefragmentServicesImpl(DefragmentConfig defragConfig, IDefragmentListener
listener)
{
_listener = listener;
Config4Impl originalConfig = (Config4Impl)defragConfig.Db4oConfig();
IStorage storage = defragConfig.BackupStorage();
if (defragConfig.ReadOnly())
{
storage = new NonFlushingStorage(storage);
}
Config4Impl sourceConfig = PrepareConfig(originalConfig, storage, defragConfig.ReadOnly
());
_sourceDb = (LocalObjectContainer)Db4oFactory.OpenFile(sourceConfig, defragConfig
.TempPath()).Ext();
_sourceDb.ShowInternalClasses(true);
defragConfig.Db4oConfig().BlockSize(_sourceDb.BlockSize());
if (!originalConfig.GenerateCommitTimestamps().DefiniteNo())
{
defragConfig.Db4oConfig().GenerateCommitTimestamps(_sourceDb.Config().GenerateCommitTimestamps
().DefiniteYes());
}
_targetDb = FreshTargetFile(defragConfig);
_mapping = defragConfig.Mapping();
_mapping.Open();
_defragConfig = defragConfig;
}
/// <exception cref="Db4objects.Db4o.CorruptionException"></exception>
/// <exception cref="System.IO.IOException"></exception>
private static void Pass(DefragmentServicesImpl context, DefragmentConfig config,
IPassCommand command)
{
command.ProcessClassCollection(context);
IStoredClass[] classes = context.StoredClasses(DefragmentServicesImpl.Sourcedb);
for (int classIdx = 0; classIdx < classes.Length; classIdx++)
{
ClassMetadata classMetadata = (ClassMetadata)classes[classIdx];
if (!config.StoredClassFilter().Accept(classMetadata))
{
continue;
}
ProcessClass(context, classMetadata, command);
command.Flush(context);
if (config.ObjectCommitFrequency() > 0)
{
context.TargetCommit();
}
}
BTree uuidIndex = context.SourceUuidIndex();
if (uuidIndex != null)
{
command.ProcessBTree(context, uuidIndex);
}
command.Flush(context);
context.TargetCommit();
}
// #end example
private static void DefragmentWithConfiguration()
{
CreateAndFillDatabase();
// #example: Defragment with configuration
DefragmentConfig config = new DefragmentConfig("database.db4o");
Defragment.Defrag(config);
// #end example
}
/// <exception cref="System.IO.IOException"></exception>
private void Defrag()
{
var backupPath = Path.GetTempFileName();
var config = new DefragmentConfig(TempFile(), backupPath);
config.ForceBackupDelete(true);
Defragment.Defragment.Defrag(config);
Delete(backupPath);
}
/// <exception cref="System.IO.IOException"></exception>
private void Defrag()
{
string backupPath = Path.GetTempFileName();
DefragmentConfig config = new DefragmentConfig(TempFile(), backupPath);
config.ForceBackupDelete(true);
Db4objects.Db4o.Defragment.Defragment.Defrag(config);
Delete(backupPath);
}
/// <exception cref="System.IO.IOException"></exception>
private void Defrag(string fname)
{
var config = new DefragmentConfig(fname);
config.Db4oConfig(NewConfiguration());
config.StoredClassFilter(IgnoreClassFilter(typeof (SimpleClass
)));
Db4o.Defragment.Defragment.Defrag(config);
}
public void ConfigureBackupFile()
{
// #example: Configure the file and backup file
DefragmentConfig config = new DefragmentConfig("database.db4o", "database.db4o.back");
Defragment.Defrag(config);
// #end example
}
public void ConfigureFile()
{
// #example: Configure the file
DefragmentConfig config = new DefragmentConfig("database.db4o");
Defragment.Defrag(config);
// #end example
}
public void ChangeBackupStorage()
{
// #example: Use a separate storage for the backup
DefragmentConfig config = new DefragmentConfig("database.db4o");
config.BackupStorage(new FileStorage());
Defragment.Defrag(config);
// #end example
}
public static DefragmentConfig DefragConfig(string sourceFile, IEmbeddedConfiguration
db4oConfig, bool forceBackupDelete)
{
var defragConfig = new DefragmentConfig(sourceFile, DefragmentTestCaseBase
.BackupFileNameFor(sourceFile));
defragConfig.ForceBackupDelete(forceBackupDelete);
defragConfig.Db4oConfig(Db4oConfig(db4oConfig));
return defragConfig;
}
public void DeleteBackup()
{
// #example: Delete the backup after the defragmentation process
DefragmentConfig config = new DefragmentConfig("database.db4o");
config.ForceBackupDelete(true);
Defragment.Defrag(config);
// #end example
}
public void SetCommitFrequency()
{
// #example: Set the commit frequency
DefragmentConfig config = new DefragmentConfig("database.db4o");
config.ObjectCommitFrequency(10000);
Defragment.Defrag(config);
// #end example
}
public void SetMappingImplementation()
{
// #example: Choose a id mapping system
IIdMapping mapping = new InMemoryIdMapping();
DefragmentConfig config = new DefragmentConfig("database.db4o", "database.db4o.back", mapping);
Defragment.Defrag(config);
// #end example
}
public void DisableReadOnlyForBackup()
{
// #example: Disable readonly on backup
DefragmentConfig config = new DefragmentConfig("database.db4o");
config.ReadOnly(false);
Defragment.Defrag(config);
// #end example
}
/// <exception cref="System.IO.IOException"></exception>
internal static LocalObjectContainer FreshTargetFile(DefragmentConfig config)
{
config.Db4oConfig().Storage.Delete(config.OrigPath());
IConfiguration clonedDb4oConfig = config.ClonedDb4oConfig();
clonedDb4oConfig.ReadOnly(false);
return((LocalObjectContainer)Db4oFactory.OpenFile(clonedDb4oConfig, config.OrigPath
()));
}
public void Test()
{
GenerateDatabaseFile();
var config = new DefragmentConfig(TempFile());
config.ForceBackupDelete(true);
var e = Assert.Expect(typeof (InvalidOperationException), delegate { Defragment.Defragment.Defrag(config); });
Assert.IsTrue(e.Message.Contains("Thing"), "Message should contain the missing type name.");
}
private static void DefragmentationWithIdMissing()
{
CreateAndFillDatabase();
// #example: Use a defragmentation listener
DefragmentConfig config = new DefragmentConfig("database.db4o");
Defragment.Defrag(config, new DefragmentListener());
// #end example
}
public void SetDb4OConfiguration()
{
// #example: Use the database-configuration
DefragmentConfig config = new DefragmentConfig("database.db4o");
// It's best to use the very same configuration you use for the regular database
IEmbeddedConfiguration configuration = Db4oEmbedded.NewConfiguration();
config.Db4oConfig(configuration);
Defragment.Defrag(config);
// #end example
}
/// <exception cref="System.Exception"></exception>
public virtual void TestCOR775()
{
Prepare();
VerifyDB();
var config = new DefragmentConfig(TempFile(), Defgared);
config.ForceBackupDelete(true);
//config.storedClassFilter(new AvailableClassFilter());
config.Db4oConfig(GetConfiguration());
Db4o.Defragment.Defragment.Defrag(config);
VerifyDB();
}
/// <exception cref="System.IO.IOException"></exception>
internal static LocalObjectContainer FreshTempFile(string fileName, int blockSize
)
{
FileStorage storage = new FileStorage();
storage.Delete(fileName);
IConfiguration db4oConfig = DefragmentConfig.VanillaDb4oConfig(blockSize);
db4oConfig.ObjectClass(typeof(IdSlotMapping)).ObjectField("_id").Indexed(true);
db4oConfig.Storage = storage;
return((LocalObjectContainer)Db4oFactory.OpenFile(db4oConfig, fileName).Ext());
}
public void TestDefragWorksAfterReopening()
{
Environment().InvokeInstanceMethod(GetType(), "CreateDatabase", db4oFilePath, true);
using(var db = Db4oEmbedded.OpenFile(db4oFilePath))
{
}
var config = new DefragmentConfig(db4oFilePath);
config.ForceBackupDelete(true);
Defragment.Defragment.Defrag(config);
}
/// <exception cref="System.IO.IOException"></exception>
private void Defrag(TernaryBool generateCommitTimestamp)
{
DefragmentConfig config = new DefragmentConfig(SourceFile(), BackupFile());
config.Db4oConfig(NewConfiguration());
config.ForceBackupDelete(true);
if (!generateCommitTimestamp.IsUnspecified())
{
config.Db4oConfig().GenerateCommitTimestamps(generateCommitTimestamp.DefiniteYes(
));
}
Db4objects.Db4o.Defragment.Defragment.Defrag(config);
}
/// <exception cref="System.IO.IOException"></exception>
private static void MoveToBackup(DefragmentConfig config)
{
IStorage origStorage = config.Db4oConfig().Storage;
if (origStorage == config.BackupStorage())
{
origStorage.Rename(config.OrigPath(), config.BackupPath());
return;
}
CopyBin(origStorage, config.BackupStorage(), config.OrigPath(), config.BackupPath
());
origStorage.Delete(config.OrigPath());
}
/// <exception cref="System.IO.IOException"></exception>
private static void UpgradeFile(DefragmentConfig config)
{
CopyBin(config.BackupStorage(), config.BackupStorage(), config.BackupPath(), config
.TempPath());
IConfiguration db4oConfig = (IConfiguration)((Config4Impl)config.Db4oConfig()).DeepClone
(null);
db4oConfig.Storage = config.BackupStorage();
db4oConfig.AllowVersionUpdates(true);
IObjectContainer db = Db4oFactory.OpenFile(db4oConfig, config.TempPath());
db.Close();
}
/// <summary>
/// Renames the file at the configured original path to the configured backup
/// path and then builds a defragmented version of the file in the original
/// place.
/// </summary>
/// <remarks>
/// Renames the file at the configured original path to the configured backup
/// path and then builds a defragmented version of the file in the original
/// place.
/// </remarks>
/// <param name="config">The configuration for this defragmentation run.</param>
/// <param name="listener">
/// A listener for status notifications during the defragmentation
/// process.
/// </param>
/// <exception cref="System.IO.IOException">if the original file cannot be moved to the backup location
/// </exception>
public static void Defrag(DefragmentConfig config, IDefragmentListener listener)
{
IStorage storage = config.Db4oConfig().Storage;
EnsureFileExists(storage, config.OrigPath());
IStorage backupStorage = config.BackupStorage();
if (backupStorage.Exists(config.BackupPath()))
{
if (!config.ForceBackupDelete())
{
throw new IOException("Could not use '" + config.BackupPath() + "' as backup path - file exists."
);
}
}
// Always delete, because !exists can indicate length == 0
backupStorage.Delete(config.BackupPath());
MoveToBackup(config);
if (config.FileNeedsUpgrade())
{
UpgradeFile(config);
}
DefragmentServicesImpl services = new DefragmentServicesImpl(config, listener);
try
{
FirstPass(services, config);
services.CommitIds();
SecondPass(services, config);
services.CommitIds();
DefragUnindexed(services);
services.CommitIds();
services.DefragIdToTimestampBtree();
services.ReplaceClassMetadataRepository();
}
catch (CorruptionException exc)
{
Sharpen.Runtime.PrintStackTrace(exc);
}
finally
{
services.Close();
}
}
private void Defrag(string fileName, int blockSize)
{
DefragmentConfig config = new DefragmentConfig(fileName);
config.Db4oConfig(Config(blockSize));
config.ForceBackupDelete(true);
Db4objects.Db4o.Defragment.Defragment.Defrag(config);
}
/// <exception cref="Db4objects.Db4o.CorruptionException"></exception>
/// <exception cref="System.IO.IOException"></exception>
private static void SecondPass(DefragmentServicesImpl context, DefragmentConfig config
)
{
// System.out.println("SECOND");
Pass(context, config, new SecondPassCommand(config.ObjectCommitFrequency()));
}
private DefragmentConfig DefragmentConfig(MemoryStorage storage)
{
DefragmentConfig defragConfig = new DefragmentConfig(Uri, TempFile(), new InMemoryIdMapping
());
defragConfig.Db4oConfig(Config(storage));
defragConfig.BackupStorage(BackupStorage());
return defragConfig;
}
void DefragDatabase()
{
if (!File.Exists(DatabaseFile)) {
return;
}
DateTime start = DateTime.UtcNow, stop;
var backupFile = String.Format(
"{0}.bak_{1}.{2}",
DatabaseFile,
Db4oVersion.Major,
Db4oVersion.Minor
);
var defragConfig = new DefragmentConfig(
DatabaseFile,
backupFile
);
defragConfig.ForceBackupDelete(true);
Defragment.Defrag(defragConfig);
stop = DateTime.UtcNow;
#if LOG4NET
Logger.Debug(
String.Format(
"DefragDatabase(): defrag took: {0:0.0} ms",
(stop - start).TotalMilliseconds
)
);
#endif
}
/// <exception cref="System.IO.IOException"></exception>
internal static LocalObjectContainer FreshTargetFile(DefragmentConfig config)
{
config.Db4oConfig().Storage.Delete(config.OrigPath());
return((LocalObjectContainer)Db4oFactory.OpenFile(config.ClonedDb4oConfig(), config
.OrigPath()));
}
/// <exception cref="System.IO.IOException"></exception>
public static void AssertIndex(string fieldName, string databaseFileName, IClosure4
configProvider)
{
ForceIndex(databaseFileName, ((IEmbeddedConfiguration) configProvider.Run()));
var defragConfig = new DefragmentConfig(databaseFileName, DefragmentTestCaseBase
.BackupFileNameFor(databaseFileName));
defragConfig.Db4oConfig(((IEmbeddedConfiguration) configProvider.Run()));
Db4o.Defragment.Defragment.Defrag(defragConfig);
IObjectContainer db = Db4oEmbedded.OpenFile(((IEmbeddedConfiguration) configProvider
.Run()), databaseFileName);
var query = db.Query();
query.Constrain(typeof (Data));
query.Descend(fieldName).Constrain(Value);
var result = query.Execute();
Assert.AreEqual(1, result.Count);
db.Close();
}
/// <exception cref="System.IO.IOException"></exception>
private void RunDefrag(string testFileName)
{
IConfiguration config = Db4oFactory.NewConfiguration();
config.AllowVersionUpdates(true);
ConfigureForTest(config);
IObjectContainer oc = Db4oFactory.OpenFile(config, testFileName);
oc.Close();
string backupFileName = Path.GetTempFileName();
try
{
DefragmentConfig defragConfig = new DefragmentConfig(testFileName, backupFileName
);
defragConfig.ForceBackupDelete(true);
ConfigureForTest(defragConfig.Db4oConfig());
defragConfig.ReadOnly(!DefragmentInReadWriteMode());
Db4objects.Db4o.Defragment.Defragment.Defrag(defragConfig);
}
finally
{
File4.Delete(backupFileName);
}
}
/// <exception cref="Db4objects.Db4o.CorruptionException"></exception>
/// <exception cref="System.IO.IOException"></exception>
private static void FirstPass(DefragmentServicesImpl context, DefragmentConfig config
)
{
// System.out.println("FIRST");
Pass(context, config, new FirstPassCommand());
}
/// <exception cref="System.Exception"></exception>
protected virtual void Defragment(string fileName)
{
var targetFile = fileName + ".defrag.backup";
var defragConfig = new DefragmentConfig(fileName, targetFile);
defragConfig.ForceBackupDelete(true);
defragConfig.Db4oConfig(CloneConfiguration());
Db4objects.Db4o.Defragment.Defragment.Defrag(defragConfig);
}
/// <exception cref="System.IO.IOException"></exception>
internal static LocalObjectContainer FreshTargetFile(DefragmentConfig config)
{
config.Db4oConfig().Storage.Delete(config.OrigPath());
return (LocalObjectContainer)Db4oFactory.OpenFile(config.ClonedDb4oConfig(), config
.OrigPath());
}
/// <summary>
/// Renames the file at the configured original path to the configured backup
/// path and then builds a defragmented version of the file in the original
/// place.
/// </summary>
/// <remarks>
/// Renames the file at the configured original path to the configured backup
/// path and then builds a defragmented version of the file in the original
/// place.
/// </remarks>
/// <param name="config">The configuration for this defragmentation run.</param>
/// <exception cref="System.IO.IOException">if the original file cannot be moved to the backup location
/// </exception>
public static void Defrag(DefragmentConfig config)
{
Defrag(config, new Defragment.NullListener());
}
