本文整理汇总了Java中org.apache.kafka.common.protocol.ApiKeys.API_VERSIONS属性的典型用法代码示例。如果您正苦于以下问题：Java ApiKeys.API_VERSIONS属性的具体用法？Java ApiKeys.API_VERSIONS怎么用？Java ApiKeys.API_VERSIONS使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.kafka.common.protocol.ApiKeys的用法示例。
在下文中一共展示了ApiKeys.API_VERSIONS属性的2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: handleKafkaRequest
private boolean handleKafkaRequest(byte[] requestBytes) throws IOException, AuthenticationException {
boolean isKafkaRequest = false;
String clientMechanism = null;
try {
ByteBuffer requestBuffer = ByteBuffer.wrap(requestBytes);
RequestHeader requestHeader = RequestHeader.parse(requestBuffer);
ApiKeys apiKey = ApiKeys.forId(requestHeader.apiKey());
// A valid Kafka request header was received. SASL authentication tokens are now expected only
// following a SaslHandshakeRequest since this is not a GSSAPI client token from a Kafka 0.9.0.x client.
// 状态切换
setSaslState(SaslState.HANDSHAKE_REQUEST);
isKafkaRequest = true;
// 检测apikye、version是否合法
if (!Protocol.apiVersionSupported(requestHeader.apiKey(), requestHeader.apiVersion())) {
if (apiKey == ApiKeys.API_VERSIONS)
sendKafkaResponse(ApiVersionsResponse.unsupportedVersionSend(node, requestHeader));
else
throw new UnsupportedVersionException("Version " + requestHeader.apiVersion() + " is not supported for apiKey " + apiKey);
} else {
AbstractRequest request = AbstractRequest.getRequest(requestHeader.apiKey(), requestHeader.apiVersion(),
requestBuffer).request;
LOG.debug("Handle Kafka request {}", apiKey);
switch (apiKey) {
case API_VERSIONS:
handleApiVersionsRequest(requestHeader);
break;
case SASL_HANDSHAKE:
clientMechanism = handleHandshakeRequest(requestHeader, (SaslHandshakeRequest) request);
break;
default:
throw new IllegalSaslStateException("Unexpected Kafka request of type " + apiKey + " during SASL handshake.");
}
}
} catch (SchemaException | IllegalArgumentException e) {
if (saslState == SaslState.GSSAPI_OR_HANDSHAKE_REQUEST) {
// SchemaException is thrown if the request is not in Kafka format. IllegalArgumentException is thrown
// if the API key is invalid. For compatibility with 0.9.0.x where the first packet is a GSSAPI token
// starting with 0x60, revert to GSSAPI for both these exceptions.
if (LOG.isDebugEnabled()) {
StringBuilder tokenBuilder = new StringBuilder();
for (byte b : requestBytes) {
tokenBuilder.append(String.format("%02x", b));
if (tokenBuilder.length() >= 20)
break;
}
LOG.debug("Received client packet of length {} starting with bytes 0x{}, process as GSSAPI packet", requestBytes.length, tokenBuilder);
}
if (enabledMechanisms.contains(SaslConfigs.GSSAPI_MECHANISM)) {
LOG.debug("First client packet is not a SASL mechanism request, using default mechanism GSSAPI");
clientMechanism = SaslConfigs.GSSAPI_MECHANISM;
} else
throw new UnsupportedSaslMechanismException("Exception handling first SASL packet from client, GSSAPI is not supported by server", e);
} else
throw e;
}
if (clientMechanism != null) {
// sasl机制检测通过,创建PlainSaslServer
createSaslServer(clientMechanism);
setSaslState(SaslState.AUTHENTICATE);
}
return isKafkaRequest;
}
示例2: Builder
public Builder() {
super(ApiKeys.API_VERSIONS);
}