FluorineFx的配置
使用“FluorineFx Asp.net Web site”向导生成的项目结构如下:
除了编写.net服务器端代码,Flex客户端代码。还有非常重要的就是正确的设置配置文件。配置文件将指导如何将客户端的请求重定向到正确的服务器对象(代码中体现不出来)。
打开项目根目录下的web.config。系统向导默认的配置与fluorinefx相关的部分(其他的省略了)如下:
<?xml version="1.0" encoding="utf-8" ?>
<configuration> fluorinefx
<configSections>
<sectionGroup name="fluorinefx">
<section name="settings" type="FluorineFx.Configuration.XmlConfigurator, FluorineFx" requirePermission="false" />
</sectionGroup>
</configSections>
<fluorinefx>
<settings>
<!-- Reflection optimizer provider="codedom|il" debug="true|false" -->
<optimizer provider="codedom" debug="true"/>
<wsdlGenerateProxyClasses>true</wsdlGenerateProxyClasses>
<wsdlProxyNamespace>FluorineFx.Proxy</wsdlProxyNamespace>
<!-- Time Zone Compensation ="none|auto" -->
<timezoneCompensation>none</timezoneCompensation>
<!-- Any value-type that is not explicitly initialized with a value will contain the default value for that object type -->
<acceptNullValueTypes>false</acceptNullValueTypes>
<!-- value="browse|access" -->
<remotingServiceAttribute>access</remotingServiceAttribute>
<classMappings>
<classMapping>
<type>SampleClassNet</type>
<customClass>SampleClassAS</customClass>
</classMapping>
</classMappings>
<services>
<service>
<name>ServiceName</name>
<service-location>.NET Full type name</service-location>
<methods>
<remote-method>
<name>MethodName</name>
<method>.NET Method name</method>
</remote-method>
</methods>
</service>
</services>
<!-- 如果services-config.xml没有使用,才需要设置security部分-->
<security>
<login-command class="FluorineFx.Messaging.Security.GenericLoginCommand" server="asp.net"/>
</security>
<cache>
<cachedService timeout="30" slidingExpiration="false" type=".NET Full type name"/>
</cache>
<importNamespaces>
<add namespace="Namespace name to import" assembly=""/>
</importNamespaces>
<nullable>
<type name="System.Int32" value="MinValue"/>
<type name="System.Double" value="MinValue"/>
<type name="System.DateTime" value="MinValue"/>
<type name="System.Guid" value="Empty"/>
</nullable>
<!-- preferredAlgorithm="deflate|gzip" compressionLevel="high|normal|low" handleRequest="all|amf|none" -->
<httpCompress preferredAlgorithm="gzip" compressionLevel="high" handleRequest="all">
<!-- compress responses larger then threshold bytes-->
<threshold>10240</threshold>
<excludedMimeTypes>
<add type="image/jpeg"/>
<add type="image/png"/>
<add type="image/gif" />
<add type="application/zip" />
<add type="application/x-zip-compressed" />
<add type="application/x-gzip-compressed" />
<add type="application/x-compressed" />
<add type="application/octet-stream" />
<add type="application/pdf" />
</excludedMimeTypes>
<excludedPaths>
<!--Fluorine service browser scripts and resources -->
<add path="FluorineWebResource.axd"/>
<add path="FluorineCodeGenerator.aspx"/>
<!--standard .NET validating scripts and postback script -->
<add path="WebResource.axd"/>
<!--MS AJAX and has it's own compression module that will take care of the AJAX scripts -->
<add path="ScriptResource.axd"/>
</excludedPaths>
</httpCompress>
<application-handler>FluorineFx.Messaging.Adapter.ApplicationAdapter</application-handler>
<sharedObjectService type="FluorineFx.Messaging.Rtmp.SO.SharedObjectService">
<persistence type="FluorineFx.Messaging.Rtmp.Persistence.FileStore"/>
</sharedObjectService>
<fluorineContextFactory type="FluorineFx.Context.FluorineRtmpContextFactory"/>
<rtmpServer>
<threadpool minWorkerThreads="0" maxWorkerThreads="25" idleTimeout="60000"/>
</rtmpServer>
</settings>
</fluorinefx>
...
<system.web>
<httpModules>
<add name="FluorineGateway" type="FluorineFx.FluorineGateway, FluorineFx" />
</httpModules>
</system.web>
...
</configuration>
说明:其中,<fluorinefx />部分不是必须有的 ;<httpModules />中的"FluorineGateway" http module entry 必须有;如果没有使用services-config.xml配置文件,才需要设置<security />部分。
除了根目录下的web.config文件(asp.net网站的标准配置文件外),WEB-INF/flex目录下还有四个配置文件(.xml)。
由于FluorineFx是Flex Data Service的.net替代品(如果你用Java写服务器端程序,则可以直接用Flex Data Service),FluorineFx提供了和Flex Data Service相同的功能—即在services-config.xml配置文件的<services>部分配置Remoting Service, Message Service ,Data Management Service。
此外,除了把所有配置都放在services-config.xml一个文件中,还可以把Service配置信息分散到多个配置文件里,然后包含进来以达到简化的效果。如下:
<services>
<!-- Remoting Service -->
<service-include file-path="remoting-config.xml"/>
<!-- Message Service -->
<service-include file-path="messaging-config.xml"/>
<!-- Data Management Service -->
<service-include file-path="data-management-config.xml"/>
</services>
下表是这四个配置文件的作用:
services-config.xml |
顶层的配置文件。包含有 Contains security constraint 定义, channel 定义, service 定义。 |
remoting-config.xml |
Remoting Service destination定义,用于访问remote objects。 |
messaging-config.xml |
Message Service destination定义,用于publish subscribe messaging。 |
data-management-config.xml |
Data Management Service destination定义。 |
看上去这些配置文件和Flex Data Service保持一致。没错,FluorineFx 配置文件与Flex/Flash保持了统一。
这四个XML格式的配置文件中可以使用的XML elements如下表:
XML element |
描述 |
services |
services-config是XML配置文件的根节点,而services是services-config的第一个字节点(属于配置的顶层元素) |
services/service-include |
Includes files by reference that contain service definitions |
services/service |
Definition for a service (Remoting Service, Message Service, Data Management Service) |
services/service/properties |
Service-level properties |
services/service/adapters |
Definitions for service adapters that are referenced in destinations |
services/service/adapters/adapter-definition |
Service adapter definition |
services/service/default-channels |
References to a service's default channels (when a channel is not explicitly referenced in a destination) |
services/service/default-channels/channel |
References to the id of a channel definition |
services/service/destination |
Destination definition |
services/service/destination/adapter |
A reference to a service adapter |
services/service/destination/properties |
Destination properties |
services/service/destination/channels |
References to the channels that the service can use for data transport |
services/service/destination/channels/channel |
References to the id of a channel definition |
services/service/destination/security |
Complete security constraint definitions or references to security constraint definitions and login command definitions that are used for authentication and authorization |
services/service/destination/security/security-constraint |
References to the id value of a security constraint definition or contains a security constraint definition |
services/service/destination/security/security-constraint/roles |
Names of roles used for authorization |
services/service/destination/security/login-command |
References to the id value of a login command definition that is used for performing custom authentication. <!--[if !vml]--><!--[endif]-->Not supported |
security |
Security constraint definitions and login command definitions for authentication and authorization |
security/security-constraint |
Defines a security constraint |
security/security-constraint/roles |
Names of roles used for authorization |
security/login-command |
Defines a login command used for custom authentication |
channels |
Definitions of message channels used to transport data between the server and clients |
channels/channel-definition |
Defines a message channel to transport data |
channels/channel-definition/endpoint |
Specifies the endpoint URI and the endpoint class of the channel definition |
channels/channel-definition/properties |
Properties of a channel definition |
在这些配置部分,有些针对于所有的全部的Service(在services-config.xml设置),有些则专用于特定的Service(在remoting-config.xml/ messaging-config.xml/ data-management-config.xml中设置)。
先看看services-config.xml中的全局设置部分:
1.配置message channel
FluorineFx 使用Flex messaging system 中的message channel传输消息。一个channel可以让多个Service通信。FluorineFx目前不支持AMF polling channels 。在services-config.xml配置文件中可以设置AMF Channel 或者RTMP Channel。如下:
<channels> <channel-definition id="my-amf" class="mx.messaging.channels.AMFChannel"> <endpoint uri="http://{server.name}:{server.port}/{context.root}/Gateway.aspx" class="flex.messaging.endpoints.AMFEndpoint"/> </channel-definition> <channel-definition id="my-rtmp" class="mx.messaging.channels.RTMPChannel"> <endpoint uri="rtmp://{server.name}:1951" class="flex.messaging.endpoints.RTMPEndpoint"/> </channel-definition> </channels> |
这里用<channel-definition>定义的channel,每个都有唯一的id。<endpoint>的uri设置的是一个接受用户请求的网关(Gateway.aspx)程序。打开这个网关程序,你可以发现程序中没有任何代码。
Flex调用远程对象的流程大概如下:
<!--[if !supportLists]-->l <!--[endif]-->Flex发出调用远程对象的请求,这个请求会被Flash Player编码成AMF;
<!--[if !supportLists]-->l <!--[endif]-->Flex代码中定义了 Service组件,通过该组件的id,找到对应配置文件中定义的destination。
<!--[if !supportLists]-->l <!--[endif]-->destination通过它的channel 的 id找到对应的channel定义。
<!--[if !supportLists]-->l <!--[endif]-->根据channel的定义,将请求发送给指定的gateway;
<!--[if !supportLists]-->l <!--[endif]-->gateway将请求发送给gateway的后台类,将消息转换成.net格式,调用服务器上正确的类;
接下来,针对Remoting Service, Message Service ,Data Management Service的配置分别进行详细说明。
一、配置RPC(remoting-config.xml)
定义Remoting Service destination就是定义需要访问的remote object。Remoting service destination就是一个对象,Flex使用<mx:RemoteObject>或 ActionScript代码连接这个远程对象。
例如:
<service id="remoting-service" class="flex.messaging.services.RemotingService" messageTypes="flex.messaging.messages.RemotingMessage">
<!-- Adapter 定义不是必须的, gateway 会自动的创建它-->
<adapters>
<adapter id="dotnet" class="FluorineFx.Remoting.RemotingAdapter" default="true"/>
</adapters>
<default-channels>
<channel ref="my-amf"/>
</default-channels>
<!—下面定义一个Destination,也就是一个远程对象 -->
<destination id="EchoServiceRO">
<!-- 由于上面定义了一个默认的channel,则不需要再定义channel
<channels>
<channel ref="my-amf"/>
</channels>
-->
<properties>
<source>ServiceLibrary.EchoService</source>
<!-- <scope>application</scope> -->
</properties>
<security>
<security-constraint ref="privileged-users"/>
</security>
</destination>
...
<security>
<security-constraint id="privileged-users">
<auth-method>Custom</auth-method>
<roles>
<role>privilegedusers</role>
<role>admins</role>
</roles>
</security-constraint>
</security>
...
对上面配置的说明:
1.<security>的安全设置
定义了远程对象,可以使用security constraint来限制用户访问访问这个destination (只支持custom authentication)。
Security constraints 可以在destination中定义,也可以在destination外面 定义,然后在destination中通过Security constraints的 id引用。
2.Destination adapter
Adapters是服务器上的一个组件,利用Adapter,客户端才能访问远程服务器上的 service object。 Adapter 定义不是必需的, gateway 将自动配置它。默认的Remoting Adapter是flex.messaging.services.RemotingService。
3.Remote object 的<properties>
Property element |
描述 |
source |
Fully qualified type name of the .NET object (remoting service) |
scope |
可以设置为 request, application, session。默认值为“ request”。 如果为“request”,则Objects是无状态的stateless ( remoting service object is instantiated for every request);如果为“application”,则整个application都可以访问这个object; 如果为“session”,则相同的session可以使用 (a single remoting service object is created per asp.net session). |
4.Web service properties(还不支持)
Property element |
描述 |
wsdl |
不支持 |
soap |
不支持 |
5.默认设置
如果没有service配置文件,则gateway会使用下面的默认配置:
<?xml version="1.0" encoding="UTF-8"?> <factories> <factory id="dotnet" class="FluorineFx.Messaging.DotNetFactory"/> </factories> <services-config> <services> <service id="remoting-service" class="flex.messaging.services.RemotingService" messageTypes="flex.messaging.messages.RemotingMessage"> <!-- 所有的远程调用remote calls 都被路由到这个destination--> <destination id="fluorine"> <channels> <channel ref="my-amf"/> </channels> <properties> <source>*</source> </properties> </destination> <!-- 只有在Service Browsing打开的情况下,下面的destination才创建 --> <!-- This destination is created only when Service Browsing is enabled--> <destination id="FluorineFx.ServiceBrowser.FluorineServiceBrowser"> <channels> <channel ref="my-amf"/> </channels> <properties> <source>FluorineFx.ServiceBrowser.FluorineServiceBrowser</source> </properties> </destination> <!-- This destination is created only when Service Browsing is enabled--> <destination id="FluorineFx.ServiceBrowser.ManagementService"> <channels> <channel ref="my-amf"/> </channels> <properties> <source>FluorineFx.ServiceBrowser.ManagementService</source> </properties> </destination> <!-- This destination is created only when Service Browsing is enabled--> <destination id="FluorineFx.ServiceBrowser.CodeGeneratorService"> <channels> <channel ref="my-amf"/> </channels> <properties> <source>FluorineFx.ServiceBrowser.CodeGeneratorService</source> </properties> </destination> </service>
</services>
<!-- This is the LoginCommand specified in the web-config file if applicable--> <security> <login-command class="..." server="asp.net"/> </security>
<channels> <channel-definition id="my-amf" class="mx.messaging.channels.AMFChannel"> <endpoint uri="http://{server.name}:{server.port}/{context.root}/Gateway.aspx" class="flex.messaging.endpoints.AMFEndpoint"/> </channel-definition> </channels> </services-config> |
二、配置 Message Service
Message Service destination 是就是消息传输的终端(endpoint)。在这台终端机上封装有服务器端代码,处理传输过来的消息 。使用 Producer 和Consumer 组件或ActionScript API可以连接到message service destination。
例如:
<service id="message-service" class="flex.messaging.services.MessageService" messageTypes="flex.messaging.messages.AsyncMessage">
<adapters>
<adapter id="chat" class="ServiceLibrary.ChatAdapter" default="true"/>
</adapters>
<destination id="chat">
<channels>
<channel ref="my-rtmp"/>
</channels>
<properties>
<network>
<session-timeout>20</session-timeout>
</network>
<server>
<allow-subtopics>true</allow-subtopics>
</server>
<security>
<security-constraint ref="privileged-users"/>
</security>
<properties>
</destination>
</service>
...
<security>
<security-constraint id="privileged-users">
<auth-method>Custom</auth-method>
<roles>
<role>privilegedusers</role>
<role>admins</role>
</roles>
</security-constraint>
</security>
...
<channels>
<channel-definition id="my-rtmp" class="mx.messaging.channels.RTMPChannel">
<endpoint uri="rtmp://{server.name}:1951" class="flex.messaging.endpoints.RTMPEndpoint"/>
</channel-definition>
</channels>
...
对上面配置的说明:
1.Message channels
当前版本的FluorineFx 只支持通过Realtime Message Protocol (RTMP) channel传输消息。
2.Message Service adapter
在FluorineFx中,默认的 Message Service adapter就是FluorineFx.Messaging.Services.Messaging.MessagingAdapter 类。所以配置文件如下设置:
<adapter id="dotnet" class="FluorineFx.Messaging.Services.Messaging.MessagingAdapter" default="true"/>
如果编写MessagingAdapter类的子类,你就可以自己定义Adapter 。
3.Network properties
Property element |
Description |
session-timeout |
超过这个时间(单位:分钟),a subscriber is unsubscribed。 (如果没有或者值为 0 ,则表明不会自动unsubscribe) |
4.Server properties
Property element |
Description |
allow-subtopics |
Destination是否支持subtopics (true/false) |
subtopic-separator |
不支持。所以总是"." (点) |
三、配置 Data Management Service
Data Management Service destination 是一个终端。这个终端可以接收数据,或者发送数据到客户机。它提供了将数据分布到多个Data Management Service destination和 在这些destination之间进行同步(synchronization)的能力。 在Flex中使用DataService 组件或ActionScript API可以连接到Data Management Service destination。
例子:
<service id="data-service" class="flex.data.DataService" messageTypes="flex.data.messages.DataMessage">
<adapters>
<adapter id="dotnet-dao" class="FluorineFx.DotNetAdapter" default="true"/>
</adapters>
<default-channels>
<channel ref="my-rtmp"/>
</default-channels>
<destination id="crm.company">
<adapter ref="dotnet-dao"/>
<properties>
<source>samples.crm.CompanyAssembler<source/>
<scope>application<scope/>
<metadata>
<identity property="companyId"/>
</metadata>
<network>
<session-timeout>20</session-timeout>
<paging enabled="true" pageSize="10"/>
</network>
</properties>
</destination>
</service>
...
<channels>
<channel-definition id="my-rtmp" class="mx.messaging.channels.RTMPChannel">
<endpoint uri="rtmp://{server.name}:1951" class="flex.messaging.endpoints.RTMPEndpoint"/>
</channel-definition>
</channels>
...
对上面配置的说明:
1.Message channel的选择:
当前的FluorineFx 只支持使用Realtime Message Protocol (RTMP) channel 传输Data Management Services。
2.Data adapter的设置:
FluorineFx中的 Data adapter是由 FluorineFx.DotNetAdapter 类实现的:
<adapter id="dotnet" class="FluorineFx.DotNetAdapter" default="true"/>
3.Destination properties
Property element |
描述 |
source |
Fully qualified type name of the Data Assembler |
scope |
Valid values are request, application, and session. The default value is request. |
cache-items |
不支持, 总设置成true |
auto-sync-enabled |
不支持, 总设置成true |
4.Network properties
Property element |
描述 |
session-timeout |
Idle time in minutes before a subscriber is unsubscribed (Missing element or the value 0 means do not unsubscribe automatically) |
paging |
Optional element specifying data paging settings. The enabled attribute (true/false) indicates whether data paging is enabled for the destination, the pageSize attribute indicates the number of records in a page. |
5.Metadata properties
Property element |
描述 |
identity |
Specifies data properties that provide object identity. The property attribute identifies the property name. |
6.Server properties
Property element |
描述 |
allow-subtopics |
Specifies whether subtopics are allowed for a destination (true/false) |
subtopic-separator |
Not supported. In FluorineFx the subtopic separator is always "." (period) |