com.ecwid.consul.v1.session.model.NewSession Java Examples

/**
 * Multiple txle apps register the same key 'CONSUL_LEADER_KEY', it would be leader in case of getting 'true'.
 * The Session, Checks and Services have to be destroyed/deregistered before shutting down JVM, so that the lock of leader key could be released.
 *
 * @return String session id
 */
public String registerConsulSession() {
    String serverHost = "127.0.0.1";
    try {
        // Firstly, to set an available ConsulClient before registering session.
        this.setAvailableConsulClient();
        if (consulClient != null) {
            destroyConsulCriticalServices();
            // To create a key for leader election no matter if it is exists.
            consulClient.setKVValue(CONSUL_LEADER_KEY, CONSUL_LEADER_KEY_VALUE);
            NewSession session = new NewSession();
            serverHost = CrossSystemInetAddress.readCrossSystemIPv4();
            session.setName("session-" + serverName + "-" + serverHost + "-" + serverPort + "-" + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));
            consulSessionId = consulClient.sessionCreate(session, null).getValue();
            return consulSessionId;
        }
    } catch (Exception e) {
        log.error("Failed to register Consul Session, serverName [{}], serverHost [{}], serverPort [{}].", serverName, serverHost, serverPort, e);
    }
    return consulSessionId;
}
 

/**
 * 创建session
 * @param sessionName
 * @return
 */
protected String createSession(String sessionName) {
    NewSession newSession = new NewSession();
    newSession.setName(sessionName);
    if(checkTtl != null) {
        checkTtl.start();
        // 如果有CheckTtl，就为该Session设置Check相关信息
        List<String> checks = new ArrayList<>();
        checks.add(checkTtl.getCheckId());
        newSession.setChecks(checks);
        newSession.setBehavior(Session.Behavior.DELETE);
        /** newSession.setTtl("60s");
         指定秒数（10s到86400s之间）。如果提供，在TTL到期之前没有更新，则会话无效。
         应使用最低的实际TTL来保持管理会话的数量。
         当锁被强制过期时，例如在领导选举期间，会话可能无法获得最多双倍TTL，
         因此应避免长TTL值（> 1小时）。**/
    }
    return consulClient.sessionCreate(newSession, null).getValue();
}
 

public NewSession getNewSession() {
    NewSession newSersson = new NewSession();
    newSersson.setName(getSessionName());
    newSersson.setLockDelay(15);
    newSersson.setBehavior(Session.Behavior.DELETE);
    newSersson.setTtl(this.interval + "s");
    return newSersson;
}
 

@Override
public Response<String> sessionCreate(NewSession newSession, QueryParams queryParams, String token) {
	UrlParameters tokenParam = token != null ? new SingleUrlParameters("token", token) : null;

	String json = GsonFactory.getGson().toJson(newSession);
	HttpResponse httpResponse = rawClient.makePutRequest("/v1/session/create", json, queryParams, tokenParam);

	if (httpResponse.getStatusCode() == 200) {
		Map<String, String> value = GsonFactory.getGson().fromJson(httpResponse.getContent(), new TypeToken<Map<String, String>>() {
		}.getType());
		return new Response<String>(value.get("ID"), httpResponse);
	} else {
		throw new OperationException(httpResponse);
	}
}
 

@Override
public Response<String> sessionCreate(NewSession newSession, QueryParams queryParams) {
	return sessionCreate(newSession, queryParams, null);
}
 

@Override
public Response<String> sessionCreate(NewSession newSession, QueryParams queryParams) {
	return sessionClient.sessionCreate(newSession, queryParams);
}
 

@Override
public Response<String> sessionCreate(NewSession newSession, QueryParams queryParams, String token) {
	return sessionClient.sessionCreate(newSession, queryParams, token);
}
 

public Response<String> sessionCreate(NewSession newSession, QueryParams queryParams); 

public Response<String> sessionCreate(NewSession newSession, QueryParams queryParams, String token);