我加载了这个DMN文件(dmnFile):
<definitions name="MyDecision" id="def_12f8a48f-3978-0e29-4251-a66b6e6459bc"
xmlns:ns="http://sample.dmn" namespace="http://sample.dmn"
xmlns:feel="http://www.omg.org/spec/FEEL/20140401" exporter="ex" exporterVersion="12"
xmlns="http://www.omg.org/spec/DMN/20180521/MODEL/">
<itemDefinition name="MyItemDefinition" id="_850f24d9-57a3-131f-2194-ca15bb049a7a">
<itemComponent name="myNumber" id="_29d92e98-3c97-67a3-22f1-d342622424f7">
<typeRef>NumberDefinition</typeRef>
</itemComponent>
</itemDefinition>
<itemDefinition name="NumberDefinition" id="_e6972775-7973-b755-8714-9eff9d61e48e">
<typeRef>number</typeRef>
</itemDefinition>
<inputData name="MyInput" id="_d6395e05-d35c-d667-f227-398d93a97759">
<variable name="MyInput" id="_121ab3bc-b4e2-a6bb-51be-ef8fcc6623a6" typeRef="MyItemDefinition" />
</inputData>
<decision name="MyDecision" id="_12f8a48f-3978-0e29-4251-a66b6e6459bc">
<variable name="MyDecision" id="_098e9619-fa0c-3796-b3da-c4d018a79009" typeRef="boolean" />
<informationRequirement>
<requiredInput href="#_d6395e05-d35c-d667-f227-398d93a97759" />
</informationRequirement>
<context id="_6dcdac84-b03f-badd-a2d7-78c668ece883">
<contextEntry>
<variable name="containsMyNumber" id="_f6078cbe-54e6-d682-b3b7-8ffc638e4846" typeRef="boolean" />
<literalExpression id="_a022013e-4f0c-cfb3-1792-673a9e69be33">
<text>if list contains([0,1,2,3], MyInput.myNumber) then true else false</text>
</literalExpression>
</contextEntry>
<contextEntry>
<literalExpression id="_19c3853c-c63b-a8ac-0608-639ea685f321">
<text>containsMyNumber</text>
</literalExpression>
</contextEntry>
</context>
</decision>
</definitions>
像这样:
KieServices ks = KieServices.Factory.get();
KieContainer kieContainer = KieHelper.getKieContainer(ks.newReleaseId("org.kie", "dmn-test-" + UUID.randomUUID(), "1.2"), ks.getResources().newFileSystemResource(dmnFile));
我收到以下错误消息的异常:
[消息[id = 1,kieBase = defaultKieBase,级别=错误,路径= C:/Users/AppData/Local/Temp/tmpBA10.tmp.dmn,行= 4,列= -1 text = DMN:无法解析节点“ MyItemDefinition”上的类型引用“ {http://www.omg.org/spec/DMN/20180521/MODEL/} NumberDefinition” (资源:C:/Users/AppData/Local/Temp/tmpBA10.tmp.dmn ,DMN ID:_29d92e98-3c97-67a3-22f1-d342622424f7,未找到列出的类型定义)]]
带有前缀(“ ns:NumberDefinition”)的类型引用会导致以下错误消息:
[消息[id = 1,kieBase = defaultKieBase,级别=错误,路径= C:/Users/AppData/Local/Temp/tmpBA10.tmp.dmn,行= 4,列= -1 text = DMN:无法解析节点“ MyItemDefinition”上的类型引用“ {http://www.omg.org/spec/DMN/20180521/MODEL/} ns:NumberDefinition” (资源:C:/Users/AppData/Local/Temp/tmpBA10.tmp .dmn,DMN ID:_29d92e98-3c97-67a3-22f1-d342622424f7,未找到列出的类型定义)]]
我该怎么办?
在使用DMN 1.1(xmlns =“ http://www.omg.org/spec/DMN/20151101/dmn.xsd”)并将类型引用作为QName(带有前缀)时,我得到了预期的结果。
答案 0 :(得分:1)
从DMNv1.2开始,引用的惯用方式是ns.<itemDef>
。
在您原始的DMN xml文件中,此操作发生在第7行和第14行。
总而言之,惯用的DMNv1.2格式的文件应为:
<definitions name="MyDecision" id="def_12f8a48f-3978-0e29-4251-a66b6e6459bc"
xmlns:ns="http://sample.dmn" namespace="http://sample.dmn"
xmlns:feel="http://www.omg.org/spec/FEEL/20140401" exporter="ex" exporterVersion="12"
xmlns="http://www.omg.org/spec/DMN/20180521/MODEL/">
<itemDefinition name="MyItemDefinition" id="_850f24d9-57a3-131f-2194-ca15bb049a7a">
<itemComponent name="myNumber" id="_29d92e98-3c97-67a3-22f1-d342622424f7">
<typeRef>ns.NumberDefinition</typeRef>
</itemComponent>
</itemDefinition>
<itemDefinition name="NumberDefinition" id="_e6972775-7973-b755-8714-9eff9d61e48e">
<typeRef>number</typeRef>
</itemDefinition>
<inputData name="MyInput" id="_d6395e05-d35c-d667-f227-398d93a97759">
<variable name="MyInput" id="_121ab3bc-b4e2-a6bb-51be-ef8fcc6623a6" typeRef="ns.MyItemDefinition" />
</inputData>
<decision name="MyDecision" id="_12f8a48f-3978-0e29-4251-a66b6e6459bc">
<variable name="MyDecision" id="_098e9619-fa0c-3796-b3da-c4d018a79009" typeRef="boolean" />
<informationRequirement>
<requiredInput href="#_d6395e05-d35c-d667-f227-398d93a97759" />
</informationRequirement>
<context id="_6dcdac84-b03f-badd-a2d7-78c668ece883">
<contextEntry>
<variable name="containsMyNumber" id="_f6078cbe-54e6-d682-b3b7-8ffc638e4846" typeRef="boolean" />
<literalExpression id="_a022013e-4f0c-cfb3-1792-673a9e69be33">
<text>if list contains([0,1,2,3], MyInput.myNumber) then true else false</text>
</literalExpression>
</contextEntry>
<contextEntry>
<literalExpression id="_19c3853c-c63b-a8ac-0608-639ea685f321">
<text>containsMyNumber</text>
</literalExpression>
</contextEntry>
</context>
</decision>
</definitions>
也就是说,在您的报告中,我们发现了DMN xml文件使用DMN命名空间作为默认命名空间时要解决的错误。 DROOLS-4797。
感谢您的举报!
有一种方法可以避免被迫使用ns.<itemDef>
并简单地使用<itemDef>
,即通过将DMN xml中的默认名称空间设置为模型的名称空间,并仅在DMN前面添加前缀具有以DMN名称空间为目标的名称空间前缀的xml元素。
换句话说,文件可以使用<itemDef>
引用,而不必ns.
加上前缀:
<semantic:definitions name="MyDecision" id="def_12f8a48f-3978-0e29-4251-a66b6e6459bc"
xmlns="http://sample.dmn" namespace="http://sample.dmn"
xmlns:feel="http://www.omg.org/spec/FEEL/20140401" exporter="ex" exporterVersion="12"
xmlns:semantic="http://www.omg.org/spec/DMN/20180521/MODEL/">
<semantic:itemDefinition name="MyItemDefinition" id="_850f24d9-57a3-131f-2194-ca15bb049a7a">
<semantic:itemComponent name="myNumber" id="_29d92e98-3c97-67a3-22f1-d342622424f7">
<semantic:typeRef>NumberDefinition</semantic:typeRef>
</semantic:itemComponent>
</semantic:itemDefinition>
<semantic:itemDefinition name="NumberDefinition" id="_e6972775-7973-b755-8714-9eff9d61e48e">
<semantic:typeRef>number</semantic:typeRef>
</semantic:itemDefinition>
<semantic:inputData name="MyInput" id="_d6395e05-d35c-d667-f227-398d93a97759">
<semantic:variable name="MyInput" id="_121ab3bc-b4e2-a6bb-51be-ef8fcc6623a6" typeRef="MyItemDefinition" />
</semantic:inputData>
<semantic:decision name="MyDecision" id="_12f8a48f-3978-0e29-4251-a66b6e6459bc">
<semantic:variable name="MyDecision" id="_098e9619-fa0c-3796-b3da-c4d018a79009" typeRef="boolean" />
<semantic:informationRequirement>
<semantic:requiredInput href="#_d6395e05-d35c-d667-f227-398d93a97759" />
</semantic:informationRequirement>
<semantic:context id="_6dcdac84-b03f-badd-a2d7-78c668ece883">
<semantic:contextEntry>
<semantic:variable name="containsMyNumber" id="_f6078cbe-54e6-d682-b3b7-8ffc638e4846" typeRef="boolean" />
<semantic:literalExpression id="_a022013e-4f0c-cfb3-1792-673a9e69be33">
<semantic:text>if list contains([0,1,2,3], MyInput.myNumber) then true else false</semantic:text>
</semantic:literalExpression>
</semantic:contextEntry>
<semantic:contextEntry>
<semantic:literalExpression id="_19c3853c-c63b-a8ac-0608-639ea685f321">
<semantic:text>containsMyNumber</semantic:text>
</semantic:literalExpression>
</semantic:contextEntry>
</semantic:context>
</semantic:decision>
</semantic:definitions>
在另一个变体中,xml中的默认名称空间是DMN模型的名称空间,因此任何itemDef引用都不需要任何前缀。
因为xml中的默认名称空间是DMN模型的名称空间,所以xml元素需要以现在面向DMN名称空间的名称空间前缀为前缀。
希望这可以澄清并提供深刻的解释!