public static EventTraceDataSource createEventTraceDataSource()

in shardingsphere-elasticjob-lite-ui/shardingsphere-elasticjob-lite-ui-backend/src/main/java/org/apache/shardingsphere/elasticjob/lite/ui/domain/EventTraceDataSourceFactory.java [47:65]


    public static EventTraceDataSource createEventTraceDataSource(final String driverClassName, final String url, final String username, final String password) {
        Hasher hasher = Hashing.sha256().newHasher().putString(driverClassName, Charsets.UTF_8).putString(url, Charsets.UTF_8);
        if (!Strings.isNullOrEmpty(username)) {
            hasher.putString(username, Charsets.UTF_8);
        }
        if (null != password) {
            hasher.putString(password, Charsets.UTF_8);
        }
        HashCode hashCode = hasher.hash();
        EventTraceDataSource result = DATA_SOURCE_REGISTRY.get(hashCode);
        if (null != result) {
            return result;
        }
        EventTraceDataSourceConfiguration eventTraceDataSourceConfiguration = new EventTraceDataSourceConfiguration(driverClassName, url, username, password);
        result = new EventTraceDataSource(eventTraceDataSourceConfiguration);
        result.init();
        DATA_SOURCE_REGISTRY.put(hashCode, result);
        return result;
    }