如何配置Camel HTTP4组件以使用NTLM身份验证

Question

在Spring DSL中，Camel的HTTP4组件如何配置为使用NTLM身份验证？

我能够使用Spring DSL配置成功配置Camel的HTTP组件以使用NTLM身份验证：

<!-- Works: HTTP (3) Configuration -->
<bean id="httpConfig" class="org.apache.camel.component.http.HttpConfiguration">
    <property name="authMethod" value="NTLM"/>
    <property name="authHost" value="my-active-directory-host"/>
    <property name="authDomain" value="my-ad-domain"/>
    <property name="authUsername" value="my-username"/>
    <property name="authPassword" value="my-password"/>
</bean>

<!-- Works: HTTP (3) Component-->
<bean id="httpmw" class="org.apache.camel.component.http.HttpComponent">
    <property name="camelContext" ref="camel"/>
    <property name="httpConfiguration" ref="httpConfig"/>
</bean>

但是，我最好尝试配置HTTP4组件失败，因为我不知道如何设置HttpComponent的httpClientConfiguration。或许，还有另一种方法来连接HTTP4组件？

<!-- Works: HTTP4 Configuration -->
<bean id="httpClientConfig" class="org.apache.camel.component.http.NTLMAuthenticationHttpClientConfigurer">
    <constructor-arg name="proxy" value="false"/>
    <constructor-arg name="user" value="my-username"/>
    <constructor-arg name="pwd" value="my-password"/>
    <constructor-arg name="domain" value="my-ad-domain"/>
    <constructor-arg name="host" value="my-active-directory-host"/>
</bean>

<!-- Does not work: HTTP4 Component, exception
    Caused by: org.springframework.beans.NotWritablePropertyException: 
    Invalid property 'httpClientConfiguration' of bean class [org.apache.camel.component.http4.HttpComponent]: 
    Bean property 'httpClientConfiguration' is not writable or has an invalid setter method. 
    Does the parameter type of the setter match the return type of the getter?
-->
<bean id="http4mw" class="org.apache.camel.component.http4.HttpComponent">
    <property name="camelContext" ref="camel"/>
    <property name="httpClientConfiguration" ref="httpClientConfig"/>
</bean>