本文整理汇总了Java中org.iq80.leveldb.Options.compressionType方法的典型用法代码示例。如果您正苦于以下问题:Java Options.compressionType方法的具体用法?Java Options.compressionType怎么用?Java Options.compressionType使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.iq80.leveldb.Options
的用法示例。
在下文中一共展示了Options.compressionType方法的10个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: start
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
private void start() throws IOException {
persister = Executors.newFixedThreadPool(config.getInt("persisterThreads"));
Options levelDbOptions = new Options();
levelDbOptions.createIfMissing(true);
levelDbOptions.cacheSize(config.getInt("levelDbCache"));
avatarDb = factory.open(new File("./db/chatAvatars"), levelDbOptions);
chatRoomDb = factory.open(new File("./db/chatRooms"), levelDbOptions);
if(config.getBoolean("compressMails"))
levelDbOptions.compressionType(CompressionType.SNAPPY);
mailDb = factory.open(new File("./db/mails"), levelDbOptions);
getHighestAvatarIdFromDatabase();
registrar = new ChatApiTcpListener(config.getInt("registrarPort"));
gateway = new ChatApiTcpListener(config.getInt("gatewayPort"));
registrar.start();
gateway.start();
}
示例2: open
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
public void open() {
Options options = new Options();
options.createIfMissing(true);
options.cacheSize(cacheSize);
options.compressionType(CompressionType.SNAPPY);
try {
File file = new File(database);
logger.info("Opening LevelDB: " + file.getAbsolutePath());
db = JniDBFactory.factory.open(new File(database), options);
logger.debug(db.getProperty("leveldb.stats"));
} catch (IOException e) {
logger.error("Error opening LevelDB ", e);
}
}
示例3: onOK
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
private void onOK() {
Options options = new Options();
options.createIfMissing(this.createBox.isSelected());
options.compressionType((CompressionType) this.compressType.getSelectedItem());
try{
options.maxOpenFiles(Integer.parseInt(this.maxOpenFiles.getValue().toString()));
}catch (NumberFormatException e){
options.maxOpenFiles(1000);
}
options.verifyChecksums(this.verifyChecksumsCheckBox.isSelected());
options.paranoidChecks(this.paranoidChecksCheckBox.isSelected());
this.viewer.setOptions(options);
dispose();
}
示例4: DainLevelDBStorageSystem
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
/** Constructor. */
public DainLevelDBStorageSystem(File dir, int cacheSizeMB)
throws StorageException {
ensureStorageDirectory(dir);
Options options = new Options();
options.createIfMissing(true);
// we disable compression, as the storage framework has own support for
// selective compression of sub-stores
options.compressionType(CompressionType.NONE);
options.cacheSize(cacheSizeMB * 1024 * 1024);
try {
database = Iq80DBFactory.factory.open(dir, options);
} catch (IOException e) {
throw new StorageException(e);
}
}
示例5: LevelDBJNI
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
/**
* @param config
* @throws IOException
*/
public LevelDBJNI(Config config) throws IOException {
super(config);
this.dbPath = config.getString("leveldb.path");
this.cacheSize = config.getBytes("leveldb.cache");
File dbDir = new File(dbPath);
if (!dbDir.exists()) {
if (!dbDir.mkdirs()) {
throw new IOException("Unable to create DB directory");
}
}
Options options = new Options();
options.createIfMissing(true);
options.cacheSize(cacheSize);
options.compressionType(CompressionType.NONE); // No compression
db = JniDBFactory.factory.open(dbDir, options);
}
示例6: start
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
public void start() {
if (getFile() == null) {
throw new IllegalArgumentException("A file must be configured");
}
if (LOG.isDebugEnabled()) {
LOG.debug("Starting LevelDB using file: {}", getFile());
}
Options options = new Options().writeBufferSize(writeBufferSize).maxOpenFiles(maxOpenFiles)
.blockRestartInterval(blockRestartInterval).blockSize(blockSize).verifyChecksums(verifyChecksums)
.paranoidChecks(paranoidChecks).cacheSize(cacheSize);
if ("snappy".equals(compressionType)) {
options.compressionType(CompressionType.SNAPPY);
} else {
options.compressionType(CompressionType.NONE);
}
options.createIfMissing(true);
try {
getFile().getParentFile().mkdirs();
db = factory.open(getFile(), options);
} catch (IOException ioe) {
throw new RuntimeException("Error opening LevelDB with file " + getFile(), ioe);
}
}
示例7: DatabaseImpl
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
public DatabaseImpl(String name) {
// Initialize Database
this.name = name;
Options options = new Options();
options.createIfMissing(true);
options.compressionType(CompressionType.NONE);
try {
logger.debug("Opening database");
File dbLocation = new File(System.getProperty("user.dir") + "/" +
SystemProperties.CONFIG.databaseDir() + "/");
File fileLocation = new File(dbLocation, name);
if(SystemProperties.CONFIG.databaseReset()) {
destroyDB(fileLocation);
}
logger.debug("Initializing new or existing database: '{}'", name);
db = factory.open(fileLocation, options);
// logger.debug("Showing database stats");
// String stats = DATABASE.getProperty("leveldb.stats");
// logger.debug(stats);
if (logger.isTraceEnabled()){
logger.trace("Dump for: {}", fileLocation.toString());
DBIterator iter = db.iterator();
while(iter.hasNext()){
byte[] key = iter.peekNext().getKey();
byte[] value = iter.peekNext().getValue();
logger.trace("key={}, value={}", Hex.toHexString(key), Hex.toHexString(value));
iter.next();
}
}
} catch (IOException ioe) {
logger.error(ioe.getMessage(), ioe);
throw new RuntimeException("Can't initialize database");
}
}
示例8: MapDatabase
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
/**
* Instantiates a new map database.
*
* @param basedir the basedir
* @throws MapDatabaseException the map database exception
* @throws MossWorldLoadException the moss world load exception
*/
@SuppressWarnings("nls")
public MapDatabase(File basedir) throws MapDatabaseException,
MossWorldLoadException {
File dbDir = new File(basedir, "db"); //$NON-NLS-1$
dbDir.mkdirs();
try {
Options options = new Options();
options.paranoidChecks(false); // ACHTUNG! Corrption!
options.verifyChecksums(true); // for now to help control the corruption
options.blockSize(8192); // Chunks are kind of big
options.compressionType(CompressionType.SNAPPY);
//options.comparator(null);
this.map = factory.open(new File(dbDir, "map"), options); //$NON-NLS-1$
this.mapHeavies = factory.open(new File(dbDir, "mapHeavies"), //$NON-NLS-1$
options);
options.blockSize(4096); // Nothing is really big after this point.
this.entities = factory.open(new File(dbDir, "entities"), options); //$NON-NLS-1$
this.metadata = factory.open(new File(dbDir, "metadata"), options); //$NON-NLS-1$
this.players = factory.open(new File(dbDir, "players"), options); //$NON-NLS-1$
this.nodes = factory.open(new File(dbDir, "nodes"), options); //$NON-NLS-1$
} catch (IOException e) {
logger.error(MessageFormat.format(Messages.getString("DB_LOAD_IOEXCEPTION"), e.getMessage()));
throw new MossWorldLoadException(Messages.getString("MapDatabase.ERR_DB_FAIL"), e); //$NON-NLS-1$
}
logger.info(Messages.getString("DB_NORMAL_LOAD"));
}
示例9: dataDbOptions
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
private Options dataDbOptions() {
Options options = new Options().createIfMissing(true);
options.compressionType(CompressionType.valueOf(configuration.compressionType().name()));
if (configuration.blockSize() != null) {
options.blockSize(configuration.blockSize());
}
if (configuration.cacheSize() != null) {
options.cacheSize(configuration.cacheSize());
}
return options;
}
示例10: activateService
import org.iq80.leveldb.Options; //导入方法依赖的package包/类
@Override
public void activateService()
throws Exception
{
charset = Charset.forName( "UTF-8" );
configuration.refresh();
LevelDBEntityStoreConfiguration config = configuration.get();
// Choose flavour
String flavour = config.flavour().get();
DBFactory factory;
if( "jni".equalsIgnoreCase( flavour ) )
{
factory = newJniDBFactory();
}
else if( "java".equalsIgnoreCase( flavour ) )
{
factory = newJavaDBFactory();
}
else
{
factory = newDBFactory();
}
// Apply configuration
Options options = new Options();
options.createIfMissing( true );
if( config.blockRestartInterval().get() != null )
{
options.blockRestartInterval( config.blockRestartInterval().get() );
}
if( config.blockSize().get() != null )
{
options.blockSize( config.blockSize().get() );
}
if( config.cacheSize().get() != null )
{
options.cacheSize( config.cacheSize().get() );
}
if( config.compression().get() != null )
{
options.compressionType( config.compression().get()
? CompressionType.SNAPPY
: CompressionType.NONE );
}
if( config.maxOpenFiles().get() != null )
{
options.maxOpenFiles( config.maxOpenFiles().get() );
}
if( config.paranoidChecks().get() != null )
{
options.paranoidChecks( config.paranoidChecks().get() );
}
if( config.verifyChecksums().get() != null )
{
options.verifyChecksums( config.verifyChecksums().get() );
}
if( config.writeBufferSize().get() != null )
{
options.writeBufferSize( config.writeBufferSize().get() );
}
if( config.errorIfExists().get() != null )
{
options.errorIfExists( config.errorIfExists().get() );
}
// Open/Create the database
File dbFile = new File( fileConfig.dataDirectory(), descriptor.identity().toString() );
db = factory.open( dbFile, options );
}