141.3. topic producer - to （"hazelcast-topic:foo"

主题制作者仅提供一个操作（发布）。

141.3.1. 发布 示例：

from("direct:add")
.setHeader(HazelcastConstants.OPERATION, constant(HazelcastOperation.PUBLISH))
.toF("hazelcast-%sbar", HazelcastConstants.PUBLISH_OPERATION);