/**
* Implementation of {@link ORecordVersion} adapted to distributed environment. Opposite of {@link
* OSimpleVersion} contains additional information about timestamp of last change and mac address of
* server that made this change.
*
* @see OVersionFactory
* @see ORecordVersion
* @author <a href="mailto:[email protected]">Artem Orobets</a>
*/
public final class ODistributedVersion implements ORecordVersion {
public static final int STREAMED_SIZE =
OBinaryProtocol.SIZE_INT + OBinaryProtocol.SIZE_LONG + OBinaryProtocol.SIZE_LONG;
public static final OBinaryConverter CONVERTER = OBinaryConverterFactory.getConverter();
private int counter;
private long timestamp;
private long macAddress;
public ODistributedVersion() {}
public ODistributedVersion(int counter) {
this.counter = counter;
this.timestamp = System.currentTimeMillis();
this.macAddress = OVersionFactory.instance().getMacAddress();
}
public ODistributedVersion(int counter, long timestamp, long macAddress) {
this.counter = counter;
this.timestamp = timestamp;
this.macAddress = macAddress;
}
@Override
public void increment() {
if (isTombstone())
throw new IllegalStateException("Record was deleted and can not be updated.");
counter++;
timestamp = System.currentTimeMillis();
macAddress = OVersionFactory.instance().getMacAddress();
}
@Override
public void decrement() {
if (isTombstone())
throw new IllegalStateException("Record was deleted and can not be updated.");
counter--;
timestamp = System.currentTimeMillis();
macAddress = OVersionFactory.instance().getMacAddress();
}
@Override
public boolean isUntracked() {
return counter == -1;
}
@Override
public boolean isTemporary() {
return counter < -1;
}
@Override
public boolean isValid() {
return counter > -1;
}
@Override
public void setCounter(int iVersion) {
counter = iVersion;
}
@Override
public int getCounter() {
return counter;
}
@Override
public boolean isTombstone() {
return counter < 0;
}
public void convertToTombstone() {
if (isTombstone())
throw new IllegalStateException("Record was deleted and can not be updated.");
counter++;
counter = -counter;
timestamp = System.currentTimeMillis();
macAddress = OVersionFactory.instance().getMacAddress();
}
@Override
public void copyFrom(ORecordVersion version) {
ODistributedVersion other = (ODistributedVersion) version;
update(other.counter, other.timestamp, other.macAddress);
}
public void update(int recordVersion, long timestamp, long macAddress) {
this.counter = recordVersion;
this.timestamp = timestamp;
this.macAddress = macAddress;
}
@Override
public void reset() {
counter = 0;
timestamp = System.currentTimeMillis();
macAddress = OVersionFactory.instance().getMacAddress();
}
@Override
public void setRollbackMode() {
counter = Integer.MIN_VALUE + counter;
}
@Override
public void clearRollbackMode() {
counter = counter - Integer.MIN_VALUE;
}
@Override
public void disable() {
counter = -1;
}
@Override
public void revive() {
counter = -counter;
}
@Override
public ORecordVersion copy() {
ODistributedVersion copy = new ODistributedVersion();
copy.counter = counter;
copy.timestamp = timestamp;
copy.macAddress = macAddress;
return copy;
}
@Override
public ORecordVersionSerializer getSerializer() {
return ODistributedVersionSerializer.INSTANCE;
}
@Override
public boolean equals(Object other) {
return other instanceof ODistributedVersion
&& ((ODistributedVersion) other).compareTo(this) == 0;
}
@Override
public int hashCode() {
int result = counter;
result = 31 * result + (int) (timestamp ^ (timestamp >>> 32));
result = 31 * result + (int) (macAddress ^ (macAddress >>> 32));
return result;
}
@Override
public String toString() {
return ODistributedVersionSerializer.INSTANCE.toString(this);
}
@Override
public int compareTo(ORecordVersion o) {
ODistributedVersion other = (ODistributedVersion) o;
final int myCounter;
if (isTombstone()) myCounter = -counter;
else myCounter = counter;
final int otherCounter;
if (o.isTombstone()) otherCounter = -o.getCounter();
else otherCounter = o.getCounter();
if (myCounter != otherCounter) return myCounter > otherCounter ? 1 : -1;
if (timestamp != other.timestamp) return (timestamp > other.timestamp) ? 1 : -1;
if (macAddress > other.macAddress) return 1;
else if (macAddress < other.macAddress) return -1;
else return 0;
}
public long getTimestamp() {
return timestamp;
}
public long getMacAddress() {
return macAddress;
}
@Override
public void writeExternal(ObjectOutput out) throws IOException {
ODistributedVersionSerializer.INSTANCE.writeTo(out, this);
}
@Override
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
ODistributedVersionSerializer.INSTANCE.readFrom(in, this);
}
private static final class ODistributedVersionSerializer implements ORecordVersionSerializer {
private static final ODistributedVersionSerializer INSTANCE =
new ODistributedVersionSerializer();
@Override
public void writeTo(DataOutput out, ORecordVersion version) throws IOException {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
out.writeInt(distributedVersion.counter);
out.writeLong(distributedVersion.timestamp);
out.writeLong(distributedVersion.macAddress);
}
@Override
public void readFrom(DataInput in, ORecordVersion version) throws IOException {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
distributedVersion.counter = in.readInt();
distributedVersion.timestamp = in.readLong();
distributedVersion.macAddress = in.readLong();
}
@Override
public void writeTo(OutputStream stream, ORecordVersion version) throws IOException {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
OBinaryProtocol.int2bytes(distributedVersion.counter, stream);
OBinaryProtocol.long2bytes(distributedVersion.timestamp, stream);
OBinaryProtocol.long2bytes(distributedVersion.macAddress, stream);
}
@Override
public void readFrom(InputStream stream, ORecordVersion version) throws IOException {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
distributedVersion.counter = OBinaryProtocol.bytes2int(stream);
distributedVersion.timestamp = OBinaryProtocol.bytes2long(stream);
distributedVersion.macAddress = OBinaryProtocol.bytes2long(stream);
}
@Override
public int writeTo(byte[] stream, int pos, ORecordVersion version) {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
int len = 0;
OBinaryProtocol.int2bytes(distributedVersion.counter, stream, pos + len);
len += OBinaryProtocol.SIZE_INT;
OBinaryProtocol.long2bytes(distributedVersion.timestamp, stream, pos + len);
len += OBinaryProtocol.SIZE_LONG;
OBinaryProtocol.long2bytes(distributedVersion.macAddress, stream, pos + len);
len += OBinaryProtocol.SIZE_LONG;
return len;
}
@Override
public int readFrom(byte[] iStream, int pos, ORecordVersion version) {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
int len = 0;
distributedVersion.counter = OBinaryProtocol.bytes2int(iStream, pos + len);
len += OBinaryProtocol.SIZE_INT;
distributedVersion.timestamp = OBinaryProtocol.bytes2long(iStream, pos + len);
len += OBinaryProtocol.SIZE_LONG;
distributedVersion.macAddress = OBinaryProtocol.bytes2long(iStream, pos + len);
len += OBinaryProtocol.SIZE_LONG;
return len;
}
@Override
public int writeTo(OFile file, long pos, ORecordVersion version) throws IOException {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
int len = 0;
file.writeInt(pos + len, distributedVersion.counter);
len += OBinaryProtocol.SIZE_INT;
file.writeLong(pos + len, distributedVersion.timestamp);
len += OBinaryProtocol.SIZE_LONG;
file.writeLong(pos + len, distributedVersion.macAddress);
len += OBinaryProtocol.SIZE_LONG;
return len;
}
@Override
public long readFrom(OFile file, long pos, ORecordVersion version) throws IOException {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
int len = 0;
distributedVersion.counter = file.readInt(pos + len);
len += OBinaryProtocol.SIZE_INT;
distributedVersion.timestamp = file.readLong(pos + len);
len += OBinaryProtocol.SIZE_LONG;
distributedVersion.macAddress = file.readLong(pos + len);
len += OBinaryProtocol.SIZE_LONG;
return len;
}
@Override
public int fastWriteTo(byte[] iStream, int pos, ORecordVersion version) {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
int len = 0;
CONVERTER.putInt(iStream, pos + len, distributedVersion.counter);
len += OBinaryProtocol.SIZE_INT;
CONVERTER.putLong(iStream, pos + len, distributedVersion.timestamp);
len += OBinaryProtocol.SIZE_LONG;
CONVERTER.putLong(iStream, pos + len, distributedVersion.macAddress);
len += OBinaryProtocol.SIZE_LONG;
return len;
}
@Override
public int fastReadFrom(byte[] iStream, int pos, ORecordVersion version) {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
int len = 0;
distributedVersion.counter = CONVERTER.getInt(iStream, pos + len);
len += OBinaryProtocol.SIZE_INT;
distributedVersion.timestamp = CONVERTER.getLong(iStream, pos + len);
len += OBinaryProtocol.SIZE_LONG;
distributedVersion.macAddress = CONVERTER.getLong(iStream, pos + len);
len += OBinaryProtocol.SIZE_LONG;
return len;
}
@Override
public byte[] toByteArray(ORecordVersion version) {
int size = OBinaryProtocol.SIZE_INT + OBinaryProtocol.SIZE_LONG + OBinaryProtocol.SIZE_LONG;
byte[] buffer = new byte[size];
fastWriteTo(buffer, 0, version);
return buffer;
}
@Override
public String toString(ORecordVersion version) {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
return distributedVersion.counter
+ "."
+ distributedVersion.timestamp
+ "."
+ distributedVersion.macAddress;
}
@Override
public void fromString(String string, ORecordVersion version) {
final ODistributedVersion distributedVersion = (ODistributedVersion) version;
String[] parts = string.split("\\.");
if (parts.length != 3)
throw new IllegalArgumentException(
"Not correct format of distributed version. Expected <recordVersion>.<timestamp>.<macAddress>");
distributedVersion.counter = Integer.valueOf(parts[0]);
distributedVersion.timestamp = Long.valueOf(parts[1]);
distributedVersion.macAddress = Long.valueOf(parts[2]);
}
}
}
/**
* Serializer for {@link Double}
*
* @author ibershadskiy <a href="mailto:[email protected]">Ilya Bershadskiy</a>
* @since 17.01.12
*/
public class ODoubleSerializer implements OBinarySerializer<Double> {
private static final OBinaryConverter CONVERTER = OBinaryConverterFactory.getConverter();
public static ODoubleSerializer INSTANCE = new ODoubleSerializer();
public static final byte ID = 6;
/** size of double value in bytes */
public static final int DOUBLE_SIZE = 8;
public int getObjectSize(Double object) {
return DOUBLE_SIZE;
}
public void serialize(Double object, byte[] stream, int startPosition) {
OLongSerializer.INSTANCE.serialize(Double.doubleToLongBits(object), stream, startPosition);
}
public Double deserialize(byte[] stream, int startPosition) {
return Double.longBitsToDouble(OLongSerializer.INSTANCE.deserialize(stream, startPosition));
}
public int getObjectSize(byte[] stream, int startPosition) {
return DOUBLE_SIZE;
}
public byte getId() {
return ID;
}
public int getObjectSizeNative(byte[] stream, int startPosition) {
return DOUBLE_SIZE;
}
public void serializeNative(Double object, byte[] stream, int startPosition) {
CONVERTER.putLong(
stream, startPosition, Double.doubleToLongBits(object), ByteOrder.nativeOrder());
}
public Double deserializeNative(byte[] stream, int startPosition) {
return Double.longBitsToDouble(
CONVERTER.getLong(stream, startPosition, ByteOrder.nativeOrder()));
}
@Override
public void serializeInDirectMemory(Double object, ODirectMemory memory, long pointer) {
memory.setLong(pointer, Double.doubleToLongBits(object));
}
@Override
public Double deserializeFromDirectMemory(ODirectMemory memory, long pointer) {
return Double.longBitsToDouble(memory.getLong(pointer));
}
@Override
public int getObjectSizeInDirectMemory(ODirectMemory memory, long pointer) {
return DOUBLE_SIZE;
}
public boolean isFixedLength() {
return true;
}
public int getFixedLength() {
return DOUBLE_SIZE;
}
}