Routing 驼峰:驼峰和多播EIP例外
我有一个简单的例子,我使用3个bean的多播。thirs bean返回一个RuntimeException,但这很好,因为它不会阻止响应返回给客户机(servlet调用)。但是,如果我在from和多播之间添加dynamicRouter,则不会返回更多响应,并且我让Camel通过将消息重新发送到多播来尝试以与以前不同的方式处理异常。这会导致转换异常,因为我在聚合器中修改了消息中的 我怎样才能保持同样的行为并使用dynamicRouter 谢谢 下面是我正在使用的文件的一些摘录: camel.xmlRouting 驼峰:驼峰和多播EIP例外,routing,apache-camel,multicast,Routing,Apache Camel,Multicast,我有一个简单的例子,我使用3个bean的多播。thirs bean返回一个RuntimeException,但这很好,因为它不会阻止响应返回给客户机(servlet调用)。但是,如果我在from和多播之间添加dynamicRouter,则不会返回更多响应,并且我让Camel通过将消息重新发送到多播来尝试以与以前不同的方式处理异常。这会导致转换异常,因为我在聚合器中修改了消息中的 我怎样才能保持同样的行为并使用dynamicRouter 谢谢 下面是我正在使用的文件的一些摘录: camel.xml
<!-- Generic route listening to all the the requests -->
<route id="generic">
<from uri="servlet:///services?httpBindingRef=rsaHttpBinding"/>
<!-- <dynamicRouter>
<method ref="rsaDynamicRouter" method="route"/>
</dynamicRouter>
-->
<choice>
<when>
<simple>${property.rsaHeader.action} == 'getAccounts'</simple>
<to uri="direct:getAccounts#1.0" />
</when>
<when>
<simple>${property.rsaHeader.action} == 'createAccount'</simple>
<to uri="direct:createAccount#1.0" />
</when>
</choice>
</route>
<!-- Process getAccounts requests -->
<route>
<from uri="direct:getAccounts#1.0" />
<multicast strategyRef="accountAggregator">
<to uri="bean:accountBackend1?method=getAccounts" />
<to uri="bean:accountBackend2?method=getAccounts" />
<to uri="bean:accountBackend3?method=getAccounts" />
</multicast>
</route>
好的,找到了
动态路由器必须返回null,否则它将继续重试执行路由!
我只希望有一个路由,而不是多个路由。动态路由器更像一个协调器
无论如何,这是我的动态路由器代码,它可以工作:
public class RsaDynamicRouter {
public String route(Object body, @Properties Map<String, Object> properties) {
RsaHeader rsaHeader = (RsaHeader)properties.get("rsaHeader");
if (properties.get("endDynamicRouting") == null) {
properties.put("endDynamicRouting", "dummy");
return "direct://" + rsaHeader.getAction() + "#" + rsaHeader.getVersion();
} else {
return null;
}
}
}
public类浏览器{
公共字符串路由(对象主体,@Properties映射属性){
RsaHeader RsaHeader=(RsaHeader)properties.get(“RsaHeader”);
if(properties.get(“endDynamicRouting”)==null){
属性。put(“enddynamiccrouting”、“dummy”);
返回“direct://”+rsaHeader.getAction()+“#”+rsaHeader.getVersion();
}否则{
返回null;
}
}
}
Caused by: org.apache.camel.InvalidPayloadException: No body available of type: lu.bgl.example.mycamel.account.SearchCriteria but has value: [Account: number= 1314-1516-1718-1920, name=Larry Page, balance=30, Account: number= 2122-2324-2526-2728, name=Steve Jobs, balance=40] of type: java.util.ArrayList on: Message: [Account: number= 1314-1516-1718-1920, name=Larry Page, balance=30, Account: number= 2122-2324-2526-2728, name=Steve Jobs, balance=40]. Caused by: No type converter available to convert from type: java.util.ArrayList to the required type: lu.bgl.example.mycamel.account.SearchCriteria with value [Account: number= 1314-1516-1718-1920, name=Larry Page, balance=30, Account: number= 2122-2324-2526-2728, name=Steve Jobs, balance=40]. Exchange[Message: [Account: number= 1314-1516-1718-1920, name=Larry Page, balance=30, Account: number= 2122-2324-2526-2728, name=Steve Jobs, balance=40]]. Caused by: [org.apache.camel.NoTypeConversionAvailableException - No type converter available to convert from type: java.util.ArrayList to the required type: lu.bgl.example.mycamel.account.SearchCriteria with value [Account: number= 1314-1516-1718-1920, name=Larry Page, balance=30, Account: number= 2122-2324-2526-2728, name=Steve Jobs, balance=40]]
at org.apache.camel.impl.MessageSupport.getMandatoryBody(MessageSupport.java:101) ~[camel-core-2.11.0.jar:2.11.0]
at org.apache.camel.builder.ExpressionBuilder$38.evaluate(ExpressionBuilder.java:934) ~[camel-core-2.11.0.jar:2.11.0]
... 131 common frames omitted
Caused by: org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: java.util.ArrayList to the required type: lu.bgl.example.mycamel.account.SearchCriteria with value [Account: number= 1314-1516-1718-1920, name=Larry Page, balance=30, Account: number= 2122-2324-2526-2728, name=Steve Jobs, balance=40]
at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:181) ~[camel-core-2.11.0.jar:2.11.0]
at org.apache.camel.impl.MessageSupport.getMandatoryBody(MessageSupport.java:99) ~[camel-core-2.11.0.jar:2.11.0]
... 132 common frames omitted
public class RsaDynamicRouter {
public String route(Object body, @Properties Map<String, Object> properties) {
RsaHeader rsaHeader = (RsaHeader)properties.get("rsaHeader");
if (properties.get("endDynamicRouting") == null) {
properties.put("endDynamicRouting", "dummy");
return "direct://" + rsaHeader.getAction() + "#" + rsaHeader.getVersion();
} else {
return null;
}
}
}