使用JADE与Workflow的WADE开发教程

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"WADE-Tutorial 是一个关于如何使用JADE和Workflow集成的教程，主要讲解了基于WADE（Workflow Agent Development Environment）的开发中间件的使用方法。本教程适用于WADE 2.0或更高版本，以及WOLF 2.0.1或更新版本。作者包括Giovanna Sacchi、Annalisa Marando、Elena Quarantotto和Giovanni Caire等人。" 本文档主要介绍了如何构建一个结合JADE代理和Workflow的工作流应用程序，通过一个名为"ToysAssembler"的案例研究进行详细阐述。以下是关键知识点： 1. **安装**：首先，教程提到安装过程，这包括设置JADE和WADE环境，以便开发者能够开始创建结合了工作流的JADE代理应用。 2. **"ToysAssembler"案例研究**：此案例用于说明如何使用WADE。"ToysAssembler"项目是一个模拟玩具装配的示例，它展示了如何将任务定义为工作流。案例中包含了额外的材料，以帮助开发者理解工作流在实际场景中的应用。 3. **创建"JADE+Workflows"应用**：这部分详述了如何创建一个新的项目，并启动"ToysAssembler"应用的主容器。此外，还讨论了应用的结构，包括主要的代理类。 4. **创建工作流**：工作流的创建是通过图形编辑器完成的，包括添加活动、设定工作流参数、建立转换（Transitions）、定义组装玩具的工作流，以及调用Web服务。同时，教程还涵盖了子流程的创建，以及如何处理异步流程的合并。 5. **执行工作流**：这部分内容讲解了如何运行和执行创建好的工作流，确保工作流按照预期进行。 6. **启动WADE应用**：最后，教程指导用户如何在Eclipse外部启动WADE应用，提供了一种独立于IDE的部署方法。整个教程的目标是使开发者能够熟练地利用WADE集成JADE代理系统和工作流技术，以实现更复杂和灵活的多智能体系统。通过这个教程，开发者不仅可以了解如何设计和执行工作流，还能掌握如何将这些工作流与JADE代理系统相结合，提升软件的自动化和协作能力。

|---src/  This includes the full ToysAssembler application sources

StoreKeeper/

|---build.xml

|---startStoreKeeper.bat

|---startStoreKeeper.sh

|---...

|---src/  This includes the StoreKeeper application sources

|---lib/  This includes the StoreKeeper application libraries

The StoreKeeper directory, besides the sources and libraries of the StoreKeeper application,

includes two scripts (one for Windows and the other for Linux/Unix) that can be used to start it.

Here is how the StoreKeeper application output looks like.

-----------------------

The Store-Keeper web service is accessible at URL

http://localhost:2000/axis/services/StoreKeeperPort?wsdl

-----------------------

added head {x=125 y=240 quantity=100}

added body {x=250 y=120 quantity=100}

added leg {x=250 y=240 quantity=100}

added arm {x=375 y=240 quantity=100}

added wheel {x=125 y=120 quantity=100}

added cockpit {x=375 y=120 quantity=100}

As can be seen from the output above, when activated the StoreKeeper application prints to the

standard output the URL where the WSDL describing its Web Service interface can be retrieved.

2 Creating a “JADE plus workflows” application

In this section we start creating the Toys Assembler application and in particular we will setup an

Eclipse project suitable to develop it, define the application structure and write the code of the main

agent classes. In next section we will focus on the definition of the tasks our agents will have to

execute in form of workflows.

2.1 Creating the “Toys Assembler” project

Having installed WOLF into the Eclipse IDE as described in section 1.1, the first step to develop

the Toys Assembler application is to create a suitable Java project (note that WADE, as well as

JADE, is fully written in Java and therefore an Eclipse project targeting the development of a

WADE based application is always a Java project). Let’s call it ToysAssembler.

Be sure that the project uses Java 5 or later, because, as mentioned before, both WADE and WOLF

require it.

In order to enable all the features supported by WOLF on the ToysAssembler Java project it is

necessary to add the WADE nature to the project. This can be done by right-clicking on the project

root and selecting the “WADE Tools --> Add WADE Nature” menu item (refer to the

Eclipse documentation for more details about “natures”).

Once the Wade Nature has been added, a new section called “Wade Configuration” is added to the

Properties of the project (see Figure 3). In this section it is possible to automatically add all

libraries required by WADE to the project classpath and manage WADE related configuration for

the project.

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