如何在Alfresco4.2.2中为共享编写自定义评估器?

例如，我需要评估器，我可以使用它来显示共享中的操作。如果当前用户是文档的作者，那么我将显示该操作。

项目结构如下(alf221-action-share)：

C:EclipseWorkspacesalfrescoalf221-action-share>tree /F
...
├───build
│   ├───classes
│   │   └───com
│   │       └───firm
│   │           └───alfresco
│   │               └───alf221
│   │                   └───evaluators
│   │                           UsersCompareEvaluator.class
│   │
│   ├───dist
│   └───lib
│           alf221-action-share.jar
│
└───src
└───main
├───com
│   └───firm
│       └───alfresco
│           └───alf221
│               └───evaluators
│                       UsersCompareEvaluator.java
│
└───resources
├───alfresco
│   └───web-extension
│       │   alf221-action-share-slingshot-application-context.x
│       │
│       └───messages
│               alf221-action-share.properties
│
└───META-INF
│   share-config-custom.xml
│
└───resources
└───components
└───documentlibrary
└───actions
firm-exclude-participant-16.png

在UsersCompareEvaluator类中，我只是试图确定当前用户：

package com.firm.alfresco.alf221.evaluators;
import org.alfresco.web.ui.common.component.evaluator.BaseEvaluator;
import org.springframework.extensions.surf.RequestContext;
import org.springframework.extensions.surf.support.ThreadLocalRequestContext;
import org.springframework.extensions.webscripts.connector.User;

public class UsersCompareEvaluator extends BaseEvaluator {
@Override
public boolean evaluate() {
RequestContext requestContext = ThreadLocalRequestContext.getRequestContext();
User user = requestContext.getUser();
System.out.println("CURRENT USER IS ... " + user.getName());
return true;
}
}

我的alf221-action-share-slingshot-application-context.xml：

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 
'http://www.springframework.org/dtd/spring-beans.dtd'>
<beans>
<bean id="com.firm.alf221-action-share.resources" 
class="org.springframework.extensions.surf.util.ResourceBundleBootstrapComponent">
<property name="resourceBundles">
<list>
<value>alfresco.web-extension.messages.alf221-action-share</value>
</list>
</property>
</bean>
<bean id="evaluator.doclib.action.isDocumentOnApproval" 
parent="evaluator.doclib.metadata.value">
<property name="accessor" value="node.properties.idocs:documentStatus" />
<property name="comparator">
<bean class="org.alfresco.web.evaluator.StringEqualsComparator">
<property name="value" value="onApproval" />
</bean>
</property>
</bean>
<bean id="evaluator.doclib.action.isCurrentUserAuthor" 
class="com.firm.alfresco.alf221.evaluators.UsersCompareEvaluator" />
</beans>

我的share-config-custom.xml：

<alfresco-config>
<config evaluator="string-compare" condition="DocLibActions">
<actions>
<action id="firm-exclude-participant" 
type="javascript" 
label="actions.firm.exclude-participant" 
icon="document-change-type">
<param name="function">onActionTkbFormDialog</param>
<permissions>
<permission allow="true">Write</permission>
</permissions>
<param name="itemKind">action</param>
<param name="itemId">exclude-participant</param>
<param name="mode">create</param>
<param name="successMessage">message.exclude-participant.success</param>
<param name="failureMessage">message.exclude-participant.failure</param>
<evaluator>evaluator.doclib.action.isDocumentOnApproval</evaluator>
<evaluator>evaluator.doclib.action.isCurrentUserAuthor</evaluator>
</action>
</actions>
<actionGroups>
<actionGroup id="document-details">
<action index="500" id="firm-exclude-participant" />
</actionGroup>
</actionGroups>
</config>
</alfresco-config>

我放在以下路径中的 jar 文件：/opt/tomcat7/webapps/share/WEB-INF/lib

一切都很完美，除了我的自定义评估器。在此配置中，共享不起作用...在日志中，我看到以下内容：

[aleksey@alfresco01 tomcat7]$ sudo vi share.log
...
Caused by: java.lang.NoClassDefFoundError: org/alfresco/web/ui/common/component/evaluator/BaseEvaluator
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2928)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1174)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1669)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:257)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:408)
at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1271)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1242)
... 22 more
Caused by: java.lang.ClassNotFoundException: org.alfresco.web.ui.common.component.evaluator.BaseEvaluator
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
... 33 more

如果在评估器中我实现了ActionEvaliator接口并尝试识别当前用户，如下所示...

public class UsersCompareEvaluator implements ActionEvaluator  {
private Map<Object, Object> registeredBeans = 
Context.getProcessEngineConfiguration().getBeans();
private ServiceRegistry registry = 
(ServiceRegistry)registeredBeans.get(ActivitiConstants.SERVICE_REGISTRY_BEAN_KEY);
private AuthenticationService authenticationService = 
registry.getAuthenticationService();  
@Override
public boolean evaluate(Node node) {
System.out.println("CURRENT USER IS ... " + 
authenticationService.getCurrentUserName());
return true;
}
@Override
public boolean evaluate(Object object) {
if(object instanceof Node) {
return evaluate((Node)object);
} 
return false;
}
}

。并将我的 jar 文件放在同一个地方(/opt/tomcat7/webapps/share/WEB-INF/lib) - 然后我得到以下异常：

...
Caused by: java.lang.ClassNotFoundException: org.alfresco.web.action.ActionEvaluator
...

我试图将我的自定义评估器打包到单独的罐子中并将其放在这里：/opt/tomcat7/webapps/alfresco/WEB-INF/lib.但是，我如何从共享中引用此评估器？

例如，我有一个单独的项目(alf221-custom-evaluator)：

C:EclipseWorkspacesalfrescoalf221-custom-evaluator>tree /F
...
└───src
└───main
├───com
│   └───firm
│       └───alfresco
│           └───alf221
│               └───evaluators
│                       UsersCompareEvaluator.java
│
└───resources
└───alfresco
└───web-extension
alf221-custom-evaluator-slingshot-application-context.xml

在alf221-custom-evaluator-slingshot-application-context.xml中，我指定以下内容：

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 
'http://www.springframework.org/dtd/spring-beans.dtd'>
<beans>
<bean id="evaluator.doclib.action.runtime.user" 
class="com.firm.alfresco.alf221.evaluators.UsersCompareEvaluator" />
</beans>

然后，在放置在alf221-action-share中的share-config-custom.xml中，我指定以下内容：