func GetKrb5ConfFromJavaOpts()

in pkg/common/utils/kerberos/kerberos.go [32:64]
22 lines of code
7 McCabe index (conditional complexity)

func GetKrb5ConfFromJavaOpts(javaOpts map[string]interface{}) string {
	krb5Property := "-Djava.security.krb5.conf="

	// All keys in the parsed config map are lowercase, so 'java_opts_for_jdk_17' is used here instead of 'JAVA_OPTS_FOR_JDK_17'.
	//this is because the viper is case-insensitive(please reference this issue:https://github.com/spf13/viper/issues/411), we use viper to resolve config file.
	if jdk17Opts, exists := javaOpts["java_opts_for_jdk_17"]; exists {
		//  The jvm configuration value in the configuration file(fe.conf/be.conf) has  "  symbol, so it needs to be cleared
		// jvm value have empty space, so for represent it as a string, the value will add double quotas, when resolve it the string format as follows:
		//""-Dfile.encoding=UTF-8 -Djavax.security.auth.useSubjectCredsOnly=false -Xss4m -Xmx8192m""
		//this step will remove the \".
		jdk17OptsString := strings.ReplaceAll(jdk17Opts.(string), "\"", "")
		for _, opt := range strings.Split(jdk17OptsString, " ") {
			if strings.Contains(opt, krb5Property) {
				split := strings.Split(opt, "=")
				return split[len(split)-1]
			}
		}
	}

	// All keys in the parsed config map are lowercase, so 'java_opts' is used here instead of 'JAVA_OPTS'.
	if commonOpts, exists := javaOpts["java_opts"]; exists {
		//  The jvm configuration value in the configuration file(fe.conf/be.conf) has  "  symbol, so it needs to be cleared
		commonOptsString := strings.ReplaceAll(commonOpts.(string), "\"", "")
		for _, opt := range strings.Split(commonOptsString, " ") {
			if strings.Contains(opt, krb5Property) {
				split := strings.Split(opt, "=")
				return split[len(split)-1]
			}
		}
	}

	return KRB5_DEFAULT_CONFIG
}