Java Code Examples for io.vertx.core.buffer.Buffer#getByte()
The following examples show how to use
io.vertx.core.buffer.Buffer#getByte() .
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Example 1
| Source File: Packet.java From besu with Apache License 2.0 | 6 votes |
|
public static Packet decode(final Buffer message) {
checkGuard(
message.length() >= PACKET_DATA_INDEX,
PeerDiscoveryPacketDecodingException::new,
"Packet too short: expected at least %s bytes, got %s",
PACKET_DATA_INDEX,
message.length());
final byte type = message.getByte(PACKET_TYPE_INDEX);
final PacketType packetType =
PacketType.forByte(type)
.orElseThrow(
() ->
new PeerDiscoveryPacketDecodingException("Unrecognized packet type: " + type));
final PacketType.Deserializer<?> deserializer = packetType.getDeserializer();
final PacketData packetData;
try {
packetData = deserializer.deserialize(RLP.input(message, PACKET_DATA_INDEX));
} catch (final RLPException e) {
throw new PeerDiscoveryPacketDecodingException("Malformed packet of type: " + packetType, e);
}
return new Packet(packetType, packetData, Bytes.wrapBuffer(message));
}
Example 2
| Source File: ZModem.java From vertx-redis-client with Apache License 2.0 | 6 votes |
|
/**
* Convert a buffer into a redis slot hash.
* @param buffer buffer
* @return hash
*/
public static int generate(Buffer buffer) {
int ch;
int i = 0;
int start = -1;
int result = 0;
int resultHash = 0;
int length = buffer.length();
while (i < length) {
ch = buffer.getByte(i++);
if (start == -1) {
if (ch == 0x7B) {
start = i;
}
} else if (ch != 0x7D) {
resultHash = lookup[(ch ^ (resultHash >> 8)) & 0xFF] ^ (resultHash << 8);
} else if (i - 1 != start) {
return resultHash & 0x3FFF;
}
result = lookup[(ch ^ (result >> 8)) & 0xFF] ^ (result << 8);
}
return result & 0x3FFF;
}
Example 3
| Source File: ServiceExceptionMessageCodec.java From vertx-service-proxy with Apache License 2.0 | 6 votes |
|
@Override
public ServiceException decodeFromWire(int pos, Buffer buffer) {
int failureCode = buffer.getInt(pos);
pos += 4;
boolean isNull = buffer.getByte(pos) == (byte)0;
pos++;
String message;
if (!isNull) {
int strLength = buffer.getInt(pos);
pos += 4;
byte[] bytes = buffer.getBytes(pos, pos + strLength);
message = new String(bytes, CharsetUtil.UTF_8);
pos += strLength;
} else {
message = null;
}
JsonObject debugInfo = new JsonObject();
debugInfo.readFromBuffer(pos, buffer);
return new ServiceException(failureCode, message, debugInfo);
}
Example 4
| Source File: DockerModuleHandle.java From okapi with Apache License 2.0 | 5 votes |
|
private void logHandler(Buffer b) {
if (logSkip == 0 && b.getByte(0) < 3) {
logSkip = 8;
}
if (b.length() > logSkip) {
logBuffer.append(b.getString(logSkip, b.length()));
logSkip = 0;
} else {
logSkip = logSkip - b.length();
}
if (logBuffer.length() > 0 && logBuffer.charAt(logBuffer.length() - 1) == '\n') {
logger.info("{} {}", () -> id, () -> logBuffer.substring(0, logBuffer.length() - 1));
logBuffer.setLength(0);
}
}
Example 5
| Source File: UserHolder.java From vertx-web with Apache License 2.0 | 5 votes |
|
@Override
public int readFromBuffer(int pos, Buffer buffer) {
byte b = buffer.getByte(pos++);
if (b == (byte)1) {
int len = buffer.getInt(pos);
pos += 4;
byte[] bytes = buffer.getBytes(pos, pos + len);
pos += len;
String className = new String(bytes, StandardCharsets.UTF_8);
try {
Class<?> clazz = Utils.getClassLoader().loadClass(className);
if (!ClusterSerializable.class.isAssignableFrom(clazz)) {
throw new ClassCastException(className + " is not ClusterSerializable");
}
ClusterSerializable obj = (ClusterSerializable) clazz.getDeclaredConstructor().newInstance();
pos = obj.readFromBuffer(pos, buffer);
synchronized (this) {
user = (User) obj;
context = null;
}
} catch (Exception e) {
throw new VertxException(e);
}
} else {
synchronized (this) {
user = null;
context = null;
}
}
return pos;
}
Example 6
| Source File: PersonCodec.java From vertx-camel-bridge with Apache License 2.0 | 4 votes |
|
@Override
public Person decodeFromWire(int pos, Buffer buffer) {
int i = (int) buffer.getByte(pos);
Buffer extracted = buffer.getBuffer(pos + 1, pos + i);
return Json.decodeValue(extracted.toString(), Person.class);
}
Example 7
| Source File: FrameParser.java From vertx-stomp with Apache License 2.0 | 4 votes |
|
private boolean isEmpty(Buffer buffer) {
return buffer.toString().length() == 0 || buffer.toString().equals(CARRIAGE_RETURN)
|| buffer.length() == 1 && buffer.getByte(0) == 0;
}
Example 8
| Source File: SharedDataSessionImpl.java From vertx-web with Apache License 2.0 | 4 votes |
|
private int readDataFromBuffer(int pos, Buffer buffer) {
try {
int entries = buffer.getInt(pos);
pos += 4;
if (entries > 0) {
final Map<String, Object> data = new ConcurrentHashMap<>(entries);
for (int i = 0; i < entries; i++) {
int keylen = buffer.getInt(pos);
pos += 4;
byte[] keyBytes = buffer.getBytes(pos, pos + keylen);
pos += keylen;
String key = new String(keyBytes, UTF8);
byte type = buffer.getByte(pos++);
Object val;
switch (type) {
case TYPE_LONG:
val = buffer.getLong(pos);
pos += 8;
break;
case TYPE_INT:
val = buffer.getInt(pos);
pos += 4;
break;
case TYPE_SHORT:
val = buffer.getShort(pos);
pos += 2;
break;
case TYPE_BYTE:
val = buffer.getByte(pos);
pos++;
break;
case TYPE_FLOAT:
val = buffer.getFloat(pos);
pos += 4;
break;
case TYPE_DOUBLE:
val = buffer.getDouble(pos);
pos += 8;
break;
case TYPE_CHAR:
short s = buffer.getShort(pos);
pos += 2;
val = (char) s;
break;
case TYPE_BOOLEAN:
byte b = buffer.getByte(pos);
pos++;
val = b == 1;
break;
case TYPE_STRING:
int len = buffer.getInt(pos);
pos += 4;
byte[] bytes = buffer.getBytes(pos, pos + len);
val = new String(bytes, UTF8);
pos += len;
break;
case TYPE_BUFFER:
len = buffer.getInt(pos);
pos += 4;
bytes = buffer.getBytes(pos, pos + len);
val = Buffer.buffer(bytes);
pos += len;
break;
case TYPE_BYTES:
len = buffer.getInt(pos);
pos += 4;
val = buffer.getBytes(pos, pos + len);
pos += len;
break;
case TYPE_CLUSTER_SERIALIZABLE:
int classNameLen = buffer.getInt(pos);
pos += 4;
byte[] classNameBytes = buffer.getBytes(pos, pos + classNameLen);
pos += classNameLen;
String className = new String(classNameBytes, UTF8);
Class<?> clazz = Utils.getClassLoader().loadClass(className);
if (!ClusterSerializable.class.isAssignableFrom(clazz)) {
throw new ClassCastException(new String(classNameBytes) + " is not assignable from ClusterSerializable");
}
ClusterSerializable obj = (ClusterSerializable) clazz.getDeclaredConstructor().newInstance();
pos = obj.readFromBuffer(pos, buffer);
val = obj;
break;
default:
throw new IllegalStateException("Invalid serialized type: " + type);
}
data.put(key, val);
}
setData(data);
}
return pos;
} catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InvocationTargetException | InstantiationException e) {
throw new VertxException(e);
}
}
