Java Code Examples for org.iq80.leveldb.DB#close()
The following examples show how to use
org.iq80.leveldb.DB#close() .
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Example 1
| Source File: SelectLevelDBData.java From gsc-core with GNU Lesser General Public License v3.0 | 6 votes |
|
public static void data(String dataName) {
Options options = new Options();
//options.createIfMissing(true);
DB db = null;
try {
System.out.println("Path: " + path + dataName);
db = factory.open(new File(path + dataName), options);
logger.info("---------------------------------------------");
System.out.println();
DBIterator iterator = db.iterator();
iterator.seekToFirst();
int count = 0;
while (iterator.hasNext()) {
count++;
switch (dataName) {
case "properties":
properties(iterator.peekNext().getKey(), iterator.peekNext().getValue());
break;
case "peers":
peers(iterator.peekNext().getKey(), iterator.peekNext().getValue());
break;
case "nodes":
peers(iterator.peekNext().getKey(), iterator.peekNext().getValue());
break;
default:
break;
}
iterator.next();
}
iterator.close();
System.out.println(dataName + " Num: " + count);
System.out.println();
logger.info("---------------------------------------------");
db.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Example 2
| Source File: LevelDBManager.java From nuls with MIT License | 5 votes |
|
public static Result destroyArea(String areaName) {
if (!baseCheckArea(areaName)) {
return Result.getFailed(DBErrorCode.DB_AREA_NOT_EXIST);
}
if (StringUtils.isBlank(dataPath) || !checkPathLegal(areaName)) {
return Result.getFailed(DBErrorCode.DB_AREA_CREATE_PATH_ERROR);
}
Result result;
try {
DB db = AREAS.remove(areaName);
db.close();
File dir = new File(dataPath + File.separator + areaName);
if (!dir.exists()) {
return Result.getFailed(DBErrorCode.DB_AREA_NOT_EXIST);
}
String filePath = dataPath + File.separator + areaName + File.separator + BASE_DB_NAME;
destroyDB(filePath);
AREAS_COMPARATOR.remove(areaName);
delete(BASE_AREA_NAME, bytes(areaName + "-comparator"));
delete(BASE_AREA_NAME, bytes(areaName + "-cacheSize"));
result = Result.getSuccess();
} catch (Exception e) {
Log.error("error destroy area: " + areaName, e);
result = Result.getFailed(DBErrorCode.DB_AREA_DESTROY_ERROR);
}
return result;
}
Example 3
| Source File: LevelDBManager.java From nuls with MIT License | 5 votes |
|
/**
* close a area
* 关闭指定数据区域
*/
public static void closeArea(String area) {
try {
AREAS_COMPARATOR.remove(area);
DB db = AREAS.remove(area);
db.close();
} catch (IOException e) {
Log.warn("close leveldb area error:" + area, e);
}
}
Example 4
| Source File: WarpInit.java From warp10-platform with Apache License 2.0 | 5 votes |
|
public static void main(String[] args) throws IOException {
String path = args[0];
Options options = new Options();
options.createIfMissing(true);
options.verifyChecksums(true);
options.paranoidChecks(true);
DB db = null;
boolean nativedisabled = "true".equals(System.getProperty(Configuration.LEVELDB_NATIVE_DISABLE));
boolean javadisabled = "true".equals(System.getProperty(Configuration.LEVELDB_JAVA_DISABLE));
try {
if (!nativedisabled) {
db = JniDBFactory.factory.open(new File(path), options);
} else {
throw new UnsatisfiedLinkError("Native LevelDB implementation disabled.");
}
} catch (UnsatisfiedLinkError ule) {
ule.printStackTrace();
if (!javadisabled) {
db = Iq80DBFactory.factory.open(new File(path), options);
} else {
throw new RuntimeException("No usable LevelDB implementation, aborting.");
}
}
db.close();
}
Example 5
| Source File: LevelDB.java From Jupiter with GNU General Public License v3.0 | 4 votes |
|
public static void generate(String path, String name, long seed, Class<? extends Generator> generator, Map<String, String> options) throws IOException {
if (!new File(path + "/db").exists()) {
new File(path + "/db").mkdirs();
}
CompoundTag levelData = new CompoundTag("")
.putLong("currentTick", 0)
.putInt("DayCycleStopTime", -1)
.putInt("GameType", 0)
.putInt("Generator", Generator.getGeneratorType(generator))
.putBoolean("hasBeenLoadedInCreative", false)
.putLong("LastPlayed", System.currentTimeMillis() / 1000)
.putString("LevelName", name)
.putFloat("lightningLevel", 0)
.putInt("lightningTime", new Random().nextInt())
.putInt("limitedWorldOriginX", 128)
.putInt("limitedWorldOriginY", 70)
.putInt("limitedWorldOriginZ", 128)
.putInt("Platform", 0)
.putFloat("rainLevel", 0)
.putInt("rainTime", new Random().nextInt())
.putLong("RandomSeed", seed)
.putByte("spawnMobs", 0)
.putInt("SpawnX", 128)
.putInt("SpawnY", 70)
.putInt("SpawnZ", 128)
.putInt("storageVersion", 4)
.putLong("Time", 0)
.putLong("worldStartCount", ((long) Integer.MAX_VALUE) & 0xffffffffL);
byte[] data = NBTIO.write(levelData, ByteOrder.LITTLE_ENDIAN);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
outputStream.write(Binary.writeLInt(3));
outputStream.write(Binary.writeLInt(data.length));
outputStream.write(data);
Utils.writeFile(path + "level.dat", new ByteArrayInputStream(outputStream.toByteArray()));
DB db = Iq80DBFactory.factory.open(new File(path + "/db"), new Options().createIfMissing(true));
db.close();
}
Example 6
| Source File: LevelDB.java From Nukkit with GNU General Public License v3.0 | 4 votes |
|
public static void generate(String path, String name, long seed, Class<? extends Generator> generator, Map<String, String> options) throws IOException {
if (!new File(path + "/db").exists()) {
new File(path + "/db").mkdirs();
}
CompoundTag levelData = new CompoundTag("")
.putLong("currentTick", 0)
.putInt("DayCycleStopTime", -1)
.putInt("GameType", 0)
.putInt("Generator", Generator.getGeneratorType(generator))
.putBoolean("hasBeenLoadedInCreative", false)
.putLong("LastPlayed", System.currentTimeMillis() / 1000)
.putString("LevelName", name)
.putFloat("lightningLevel", 0)
.putInt("lightningTime", new Random().nextInt())
.putInt("limitedWorldOriginX", 128)
.putInt("limitedWorldOriginY", 70)
.putInt("limitedWorldOriginZ", 128)
.putInt("Platform", 0)
.putFloat("rainLevel", 0)
.putInt("rainTime", new Random().nextInt())
.putLong("RandomSeed", seed)
.putByte("spawnMobs", 0)
.putInt("SpawnX", 128)
.putInt("SpawnY", 70)
.putInt("SpawnZ", 128)
.putInt("storageVersion", 4)
.putLong("Time", 0)
.putLong("worldStartCount", ((long) Integer.MAX_VALUE) & 0xffffffffL);
byte[] data = NBTIO.write(levelData, ByteOrder.LITTLE_ENDIAN);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
outputStream.write(Binary.writeLInt(3));
outputStream.write(Binary.writeLInt(data.length));
outputStream.write(data);
Utils.writeFile(path + "level.dat", new ByteArrayInputStream(outputStream.toByteArray()));
DB db = Iq80DBFactory.factory.open(new File(path + "/db"), new Options().createIfMissing(true));
db.close();
}
Example 7
| Source File: LevelDB.java From BukkitPE with GNU General Public License v3.0 | 4 votes |
|
public static void generate(String path, String name, long seed, Class<? extends Generator> generator, Map<String, String> options) throws IOException {
if (!new File(path + "/db").exists()) {
new File(path + "/db").mkdirs();
}
CompoundTag levelData = new CompoundTag("")
.putLong("currentTick", 0)
.putInt("DayCycleStopTime", -1)
.putInt("GameType", 0)
.putInt("Generator", Generator.getGeneratorType(generator))
.putBoolean("hasBeenLoadedInCreative", false)
.putLong("LastPlayed", System.currentTimeMillis() / 1000)
.putString("LevelName", name)
.putFloat("lightningLevel", 0)
.putInt("lightningTime", new Random().nextInt())
.putInt("limitedWorldOriginX", 128)
.putInt("limitedWorldOriginY", 70)
.putInt("limitedWorldOriginZ", 128)
.putInt("Platform", 0)
.putFloat("rainLevel", 0)
.putInt("rainTime", new Random().nextInt())
.putLong("RandomSeed", seed)
.putByte("spawnMobs", 0)
.putInt("SpawnX", 128)
.putInt("SpawnY", 70)
.putInt("SpawnZ", 128)
.putInt("storageVersion", 4)
.putLong("Time", 0)
.putLong("worldStartCount", ((long) Integer.MAX_VALUE) & 0xffffffffL);
byte[] data = NBTIO.write(levelData, ByteOrder.LITTLE_ENDIAN);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
outputStream.write(Binary.writeLInt(3));
outputStream.write(Binary.writeLInt(data.length));
outputStream.write(data);
Utils.writeFile(path + "level.dat", new ByteArrayInputStream(outputStream.toByteArray()));
DB db = Iq80DBFactory.factory.open(new File(path + "/db"), new Options().createIfMissing(true));
db.close();
}
Example 8
| Source File: ReaderWithOffsets.java From distributedlog with Apache License 2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
if (4 != args.length) {
System.out.println(HELP);
return;
}
String dlUriStr = args[0];
final String streamName = args[1];
final String readerId = args[2];
final String offsetStoreFile = args[3];
URI uri = URI.create(dlUriStr);
DistributedLogConfiguration conf = new DistributedLogConfiguration();
Namespace namespace = NamespaceBuilder.newBuilder()
.conf(conf)
.uri(uri)
.build();
// open the dlm
System.out.println("Opening log stream " + streamName);
DistributedLogManager dlm = namespace.openLog(streamName);
// open the offset store
Options options = new Options();
options.createIfMissing(true);
final DB offsetDB = factory.open(new File(offsetStoreFile), options);
final AtomicReference<DLSN> lastDLSN = new AtomicReference<DLSN>(null);
// offset updater
final ScheduledExecutorService executorService =
Executors.newSingleThreadScheduledExecutor();
executorService.scheduleAtFixedRate(new Runnable() {
@Override
public void run() {
if (null != lastDLSN.get()) {
offsetDB.put(readerId.getBytes(UTF_8), lastDLSN.get().serializeBytes());
System.out.println("Updated reader " + readerId + " offset to " + lastDLSN.get());
}
}
}, 10, 10, TimeUnit.SECONDS);
try {
byte[] offset = offsetDB.get(readerId.getBytes(UTF_8));
DLSN dlsn;
if (null == offset) {
dlsn = DLSN.InitialDLSN;
} else {
dlsn = DLSN.deserializeBytes(offset);
}
readLoop(dlm, dlsn, lastDLSN);
} finally {
offsetDB.close();
dlm.close();
namespace.close();
}
}
Example 9
| Source File: ReaderWithOffsets.java From distributedlog with Apache License 2.0 | 4 votes |
|
public static void main(String[] args) throws Exception {
if (4 != args.length) {
System.out.println(HELP);
return;
}
String dlUriStr = args[0];
final String streamName = args[1];
final String readerId = args[2];
final String offsetStoreFile = args[3];
URI uri = URI.create(dlUriStr);
DistributedLogConfiguration conf = new DistributedLogConfiguration();
DistributedLogNamespace namespace = DistributedLogNamespaceBuilder.newBuilder()
.conf(conf)
.uri(uri)
.build();
// open the dlm
System.out.println("Opening log stream " + streamName);
DistributedLogManager dlm = namespace.openLog(streamName);
// open the offset store
Options options = new Options();
options.createIfMissing(true);
final DB offsetDB = factory.open(new File(offsetStoreFile), options);
final AtomicReference<DLSN> lastDLSN = new AtomicReference<DLSN>(null);
// offset updater
final ScheduledExecutorService executorService =
Executors.newSingleThreadScheduledExecutor();
executorService.scheduleAtFixedRate(new Runnable() {
@Override
public void run() {
if (null != lastDLSN.get()) {
offsetDB.put(readerId.getBytes(UTF_8), lastDLSN.get().serializeBytes());
System.out.println("Updated reader " + readerId + " offset to " + lastDLSN.get());
}
}
}, 10, 10, TimeUnit.SECONDS);
try {
byte[] offset = offsetDB.get(readerId.getBytes(UTF_8));
DLSN dlsn;
if (null == offset) {
dlsn = DLSN.InitialDLSN;
} else {
dlsn = DLSN.deserializeBytes(offset);
}
readLoop(dlm, dlsn, lastDLSN);
} finally {
offsetDB.close();
dlm.close();
namespace.close();
}
}
Example 10
| Source File: LevelDB.java From Nukkit with GNU General Public License v3.0 | 4 votes |
|
public static void generate(String path, String name, long seed, Class<? extends Generator> generator, Map<String, String> options) throws IOException {
if (!new File(path + "/db").exists()) {
new File(path + "/db").mkdirs();
}
CompoundTag levelData = new CompoundTag("")
.putLong("currentTick", 0)
.putInt("DayCycleStopTime", -1)
.putInt("GameType", 0)
.putInt("Generator", Generator.getGeneratorType(generator))
.putBoolean("hasBeenLoadedInCreative", false)
.putLong("LastPlayed", System.currentTimeMillis() / 1000)
.putString("LevelName", name)
.putFloat("lightningLevel", 0)
.putInt("lightningTime", new Random().nextInt())
.putInt("limitedWorldOriginX", 128)
.putInt("limitedWorldOriginY", 70)
.putInt("limitedWorldOriginZ", 128)
.putInt("Platform", 0)
.putFloat("rainLevel", 0)
.putInt("rainTime", new Random().nextInt())
.putLong("RandomSeed", seed)
.putByte("spawnMobs", 0)
.putInt("SpawnX", 128)
.putInt("SpawnY", 70)
.putInt("SpawnZ", 128)
.putInt("storageVersion", 4)
.putLong("Time", 0)
.putLong("worldStartCount", ((long) Integer.MAX_VALUE) & 0xffffffffL);
byte[] data = NBTIO.write(levelData, ByteOrder.LITTLE_ENDIAN);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
outputStream.write(Binary.writeLInt(3));
outputStream.write(Binary.writeLInt(data.length));
outputStream.write(data);
Utils.writeFile(path + "level.dat", new ByteArrayInputStream(outputStream.toByteArray()));
DB db = Iq80DBFactory.factory.open(new File(path + "/db"), new Options().createIfMissing(true));
db.close();
}
