The message was passed from person to person until it reached the front of the bus.
消息从一个人传到另一个人，一直传到公交车的前排。
This is a recorded message lasting approximately four minutes and it provides general information on the town bus tour.
这是一段约四分钟的录音信息，它提供了城市巴士旅游的基本信息。
Applications communicate with the message bus through one or more channels.
应用程序通过一个或多个通道与消息总线交互。
The message bus creates an event object and dispatches it, along with an instance of a business service, to an event channel.
消息总线将创建一个事件对象，并且将该事件对象连同业务服务的实例一起发送给事件通道。
If the incoming message is neither of those, the bus is told that we did not handle the message.
如果到来的消息不是其中的任何一个，则告知总线没有处理那个消息。
This particular component's goal is to demonstrate the inherent flexibility of the message bus model.
这个特殊的组件的目的是示范消息总线模型的固有的灵活性。
This establishes the notion of an "integration bus"; message producers and consumers communicate by interacting with the bus, not directly with each other.
这样就建立了“集成总线”的概念；消息产生者和消息消费者之间通过与总线交互进行通信，而不是彼此直接通信。
In creating this application, we will see the setup that is needed to send a JMS message through the message bus in the application server.
在创建此应用程序的过程中，我们将看到在应用程序服务器中通过消息总线发送JMS消息所必需的设置。
Each message is published, along with an asynchronous callback listener, to a message bus residing on the business tier.
每条消息连同异步回调侦听程序一起被发布到驻留在业务层的消息总线。
So if a message bus is not a full ESB, then what else does an ESB do?
如此说来，如果消息总线不是完整的ESB，那么ESB还可以做什么呢？
There are actually quite a few ways to implement a message bus, as well as quite a few vendor tools designed to make it easier.
确实有一些方法可以实现消息总线，并且也有许多设计的第三方工具使得实现它更容易了。
A gateway is a part of a message bus or service bus which provides boundary functions which apply to all incoming messages and are not format dependent.
网关是消息总线或服务总线的一部分，提供应用到所有传入消息且不依赖于格式的边界功能。
What makes it interesting here, however, is the fact that the message is actually sent to a destination on the message bus.
然而，它之所以有趣是基于以下事实：消息通过消息传递总线正确发送到目的地。
The material covered in this installment has provided only a cursory glance at the basic implementation of the message bus pattern.
在这部分所涵盖的内容当中只是粗略的提供了对消息总线模型实现。
Message broker: The message bus may include a message broker that determines where messages will be routed depending on various business criteria.
消息代理：消息总线可以包含消息代理，通过代理可以根据不同的业务标准确定该往何处发送消息。
Furthermore, the message bus can take advantage of the underlying runtime for some of its internal components.
此外，消息总线能够利用它的内部组件的基础运行时间。
No, a message bus is definitely the foundation of an asynchronous ESB, but a full ESB is something more.
不，消息总线肯定是异步ESB的基础，但完整的 ESB 还包括其他的功能。
The collaboration of various message engines makes up the bus.
各种消息引擎协作构成了总线。
The ESB, however, encorages the use of the asynchronous message bus style interaction pattern illustrated in Figure 4 earlier.
不过，ESB 推荐使用异步消息总线样式的交互模式（如前面的 图4 所示）。
An asynchronous messaging system typically relies on a message bus or broker to expose queues or event channels that receive messages published by message producers.
异步消息传递系统通常依赖于消息总线或消息代理公开用于接收消息生成方所发布的消息的队列或事件通道。
Standards and patterns exist today for implementing a synchronous ESB and a message bus that is a simplified asynchronous ESB.
目前存在用于实现同步ESB和消息总线（简化的异步 ESB）的标准和模式。
It is not enough to just start the application after it has been installed because the message bus will not start.
在应用程序安装后只启动它是不够的，因为消息总线还未启动。
Shutting down the console application while the Web service is up and running in no way affects the functionality of the message bus.
当Web服务启动起来关闭控制台应用程序，以不影响消息总线的功能性的方式运行。
Listing 3 shows the code for one of two listeners that receive the CaseModel delivered through the message bus and convert the provided text to upper and lower case.
清单3显示了两个监听器中其中一个监听器的代码，该监听器接收通过消息总线传送的CaseModel，然后将提供的文本转换为大写体和小写体。
A Web services interface through which messages can be pushed into the message bus.
可以通过Web服务接口将消息推进消息总线中。
Message channels: the message bus component is primarily comprised of one or more individual channels through which messages can be passed. Channels can have the following characteristics.
消息通道：消息总线组件主要包含一个或多个单独的通道，可以通过这些通道传递消息。
Upon receiving a message from the message bus, these components call out to a remote Web services endpoint, notifying it that a message has been received.
从消息总线上接收消息，这些组件唤醒远程Web服务端点，通知它已经接收了消息。
The send operation receives as input an object called a Case Model, which is representative of a simple application-specific message type that the message bus handles.
send操作接收称为CaseModel的对象作为输入，该对象代表消息总线处理的应用程序指定的消息类型。
Here are some of the message events that can be intercepted from the message bus and acted upon.
可从消息总线截取以下消息事件并进行操作。
The byte ordering is stated in each message, so if a D-BUS message travels over a network to a remote host, it can still be parsed correctly.
字节次序在每个消息中声明，所以如果一个D - BUS消息通过网络传输到远程的主机，它仍可以被正确地识别出来。
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