本系统采取三层体系结构，分别是客户端，中间代理层和分布的服务器层。
The prototype has three layers: the client layer, the agent layer and the server layer.
论文通过对大规模机群监控系统数据采集通信模型进行分析，提出了一种引入中间代理的应用于大规模机群监控系统的三层通信模型。
This paper first focuses on the data gathering communication model of large scale cluster monitoring system, and brings forward a new one which middle proxy is introduced into.
与EJB代理方法和中间件代理方法不同的是，此方法没有性能影响。
And unlike either the EJB proxy approach or the middleware proxy approach, this approach has no performance impact.
要实现这些操作，需要有一个应用程序在呼叫的中间位置充当背靠背的用户代理，并提供对上述服务的访问。
To make these actions happen, you need an application to sit in the middle of the call, act as a back-to-back user agent, and provide access to the services mentioned.
此设计成果的运行时视图将提供服务总线构造（即ESB），其中包括总线本身、代理以及中间的消息传递层。
The run-time view of this canvassing would have a services bus construct (that is, the ESB) providing the bus itself, brokerage, and a messaging layer in the middle.
请继续关注本系列的后续文章，我们将在其中提供有关如何实现中间件代理和EJB代理解决方法的细节和示例。
Stay tuned for subsequent articles in this series, which will provide details and examples that show you how to implement the middleware proxy and EJB proxy workarounds.
与本系列以前的文章中所述的中间件代理方法相比，实现EJB代理方法只是基本的编程做法。
Compared to the middleware proxy approach described in a previous article of this series, implementing the EJB proxy approach is a basic programming exercise.
如果要寻找轻量的低成本备选方案来替代中间件代理方法，使用EJB代理可能比较合适。
If you're looking for a lightweight, low-cost alternative to the middleware proxy approach, using an EJB proxy might be suitable.
Manager组件可以是EMS应用程序或管理多个代理和相关资源的中间智能层。
Manager components can be EMS applications or an intermediate intelligence layer that manages multiple agents and associated resources.
“Call”对象允许您为基本认证设置HTTP用户标识和密码，以及中间 HTTP代理（如果它们存在的话）所需的类似方法。
The "Call" object allows you to set HTTP user ID and password for basic auth, and also similar methods to cater for intermediate HTTP proxies, if they exist.
Logging：此视图提供了一个集中式用户界面，此界面包含每个VM的特定于操作系统、特定于中间件和特定于Workload Deployer代理的日志的集合。
Logging: This view provides a centralized user interface with a collection of OS-specific, middleware-specific, and Workload Deployer agent-specific logs for each VM.
另外，此方法的可扩展性不如中间件代理方法，因为需要对每个J2EE 1.3客户机应用程序进行手动修改。
Also, this approach is not as scalable as the middleware proxy approach, because it requires manual modification of each J2EE 1.3 client application.
必须像处理其他关键基础设施组件一样安装、配置和管理中间件代理组件。
You must install, configure, and manage the middleware proxy component as any other critical infrastructure component.
中间件代理方法的一个优势在于，不需要进行任何应用程序开发任务。
One advantage to the middleware proxy approach is that no application development tasks are required.
这是在没有设置代理的情况下用于从应用程序中间件收集数据的合理选择。
This is a logical choice for collecting data from application middleware in cases where you do not have agents set up.
中间件代理方法的一个缺点是，它引入了大量操作与管理任务。
A disadvantage to the middleware proxy approach is that it introduces a nontrivial set of operations and administration tasks.
例如，是否有必要通过类似于代理的中间件系统来把客户端身份传递到服务实现的最终提供者？
For example, is there a need to propagate client identity through intermediate systems such as brokers to the end-providers of service implementations?
代理身份验证和授权：中间层服务器执行身份验证。
Proxy authentication and authorization: the middle-tier server performs authentication.
尽管海盗老练地使用中间人，代理人，律师，宣传员，但本质上这还是一种凶残与狡诈的生意。
Although pirates make sophisticated use of middlemen, agents, lawyers, and publicists, it remains at heart a thuggish and duplicitous business.
这种设计模式在中间层中引入了一个应用程序服务器，中间层代理客户端和数据层之间的代理。
This design pattern introduces an application server in the middle tier which brokers connections between clients and the data tier.
注意：本文剩下的部分将此解决方法称为中间件代理方法。
Note: in the remainder of this article, this workaround is referred to as the middleware proxy approach.
定义通知代理，以便作为通知提供者和使用者之间的中间层使用。
Defines a notification broker, which can be used as an intermediary between notification providers and consumers.
在消息传递中间件中，通过使用一个名为消息代理(或队列管理程序)的服务器组件以消息的形式在系统间传递数据来实现连接。
In messaging middleware, connectivity is achieved by passing data between systems through a server component known as a message broker (or a queue manager) in the form of messages.
服务代理的操作、基础服务提供者的选择以及中间层要执行的其他过程都完全对客户机透明。
The operation of the service broker, the selection of an underlying service provider, and any other processes that the intermediary wishes to perform are completely transparent to the client.
在中间件层边缘(我们将边缘视为层次间转换发生的地点)，很可能会存在其他组件，如代理服务器等。
At the edge of the middleware tier (an edge is considered as a point where transition from one tier to another takes place), there are most likely found other components, such as proxy servers.
为提供者服务安装并配置了中间件代理后，可以将其用于集成任意数量的Web服务使用者，而无需进行任何额外的工作。
After the middleware proxy has been installed and configured with a provider service, it can be used to integrate any number of Web service consumers with no additional effort.
Web服务提供者和使用者应用程序无需更改就可以通过中间件代理进行互操作。
The Web services provider and consumer applications can interoperate through the middleware proxy without changes.
由于数字化的资产被定义为中间件的构件(artifact)，所以它们可以与其他流程代理程序服务一起进行操作(在一个事务处理中)。
Since the digital assets are defined as an artifact of the middleware, they can be manipulated in conjunction with other Process Broker services, under a single transaction.
一些中间步骤和细节已被省略，但这里的目的是展示Web引用的概念以及如何使用 Web 引用自动生成客户机代理。
Some intermediary steps and details have been omitted, but the intention here is to show the concept of Web references and how they can be used to automatically generate client proxies.
一些中间步骤和细节已被省略，但这里的目的是展示Web引用的概念以及如何使用 Web 引用自动生成客户机代理。
Some intermediary steps and details have been omitted, but the intention here is to show the concept of Web references and how they can be used to automatically generate client proxies.
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