Grails Searchable Plugin - 没有列出要索引的实体

Question

我在 Grails 2.2.3 应用程序中使用 Searchable Plugin 0.6.4，但遇到了一个奇怪的错误。错误说：GrailsContextLoader Error initializing the application: No entities listed to be indexed, have you defined your entities correctly?

我只列出了一个要编入索引的类。下面是那个类（简化了一点）：

class Incident {

    String howReceived
    Date timeOfCall
    Date timeOfArrival

    User reportingOfficer

    static searchable = [ except: ['version', 'dateCreated', 'lastUpdated'] ]

    static embedded = [ 'witnesses' ]
    static hasMany = [ witnesses: Witness ]

    static mapping = {
        datasource 'police'
        table 'incidents'
    }
}

这就是我所拥有的，一个简单的映射。下面我还包括了我打开的堆栈跟踪和调试语句。

编辑：由于某种原因，sessionFactory bean 似乎没有在 DefaultHibernateEntitiesLocator 类中找到任何类元数据。所以...

Map allClassMetaData = sessionFactory.getAllClassMetadata();
assert allClassMetaData == null

不知道为什么或这些信息是否有帮助。

调试

searchable.SearchableGrailsPlugin Not found: Searchable
searchable.SearchableGrailsPlugin Trying to load config from 'SearchableConfiguration.class'
searchable.SearchableGrailsPlugin Not found: SearchableConfiguration
searchable.SearchableGrailsPlugin Defining Compass and Compass::GPS beans
searchable.SearchableGrailsPlugin Done defining Compass and Compass::GPS beans
spring.DefaultSearchableCompassFactoryBean Building SearchableCompassFactoryBean with grailsApplication [org.codehaus.groovy.grails.commons.DefaultGrailsApplication@10fdea05] and compassClassMappingXmlBuilder [grails.plugin.searchable.internal.compass.mapping.DefaultSearchableCompassClassMappingXmlBuilder@e0ef6fa]
spring.SearchableCompassFactoryBean Building new Compass
config.EnvironmentSearchableCompassConfigurator Setting Compass connection to [/Users/grantmcconnaughey/.grails/projects/campus-police/searchable-index/development]
config.DefaultGrailsDomainClassMappingSearchableCompassConfigurator Mapping class [com.company.police.Incident] with strategy [searchable class property]
config.DefaultGrailsDomainClassMappingSearchableCompassConfigurator No mapping strategy found for class [com.company.police.Employee]: assuming this class is not searchable
mapping.SearchableGrailsDomainClassCompassMappingUtils Mapping [Incident.howReceived]
mapping.SearchableGrailsDomainClassCompassMappingUtils Mapping [Incident.id]
mapping.SearchableGrailsDomainClassCompassMappingUtils Mapping [Incident.timeOfArrival]
mapping.SearchableGrailsDomainClassCompassMappingUtils Mapping [Incident.timeOfCall]
mapping.DefaultSearchableCompassClassMappingXmlBuilder Building Compass mapping XML for [com.company.police.Incident] from description [CompassClassMapping: mappedClass=[class com.company.police.Incident],  mappedClassSuperClass=[null], alias=[Incident], spellCheck=[null], subIndex=[null], root=[true], poly=[false], extend=[null], propertyMappings=[[CompassClassPropertyMapping: type=[property], propertyName=[domestic], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[hateCrime], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[howReceived], attributes=[{}], CompassClassPropertyMapping: type=[id], propertyName=[id], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[occurredFrom], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[occurredTo], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[officerAssaulted], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[officerKilled], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[readyForSignature], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[reportNumber], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[timeOfArrival], attributes=[{}], CompassClassPropertyMapping: type=[property], propertyName=[timeOfCall], attributes=[{}]]]]
mapping.DefaultSearchableCompassClassMappingXmlBuilder Mapping Searchable Property 'com.company.police.Incident.howReceived' with property attributes [name:howReceived] and meta-data [howReceived:[:]]
mapping.DefaultSearchableCompassClassMappingXmlBuilder Mapping Searchable Property 'com.company.police.Incident.timeOfArrival' with property attributes [name:timeOfArrival] and meta-data [timeOfArrival:[:]]
mapping.DefaultSearchableCompassClassMappingXmlBuilder Mapping Searchable Property 'com.company.police.Incident.timeOfCall' with property attributes [name:timeOfCall] and meta-data [timeOfCall:[:]]
mapping.DefaultSearchableCompassClassMappingXmlBuilder com.company.police.Incident xml [<?xml version="1.0"?>
<!DOCTYPE compass-core-mapping PUBLIC 
    "-//Compass/Compass Core Mapping DTD 2.0//EN"
    "http://www.compass-project.org/dtd/compass-core-mapping-2.2.dtd">
<compass-core-mapping>
  <class name='com.company.police.Incident' alias='Incident' root='true' poly='false' support-unmarshall='true'>
    <id name='id' />
    <property name='howReceived'>
      <meta-data>howReceived</meta-data>
    </property>
    <property name='timeOfArrival'>
      <meta-data>timeOfArrival</meta-data>
    </property>
    <property name='timeOfCall'>
      <meta-data>timeOfCall</meta-data>
    </property>
  </class>
</compass-core-mapping>]
mapping.SearchableClassPropertySearchableGrailsDomainClassMappingConfigurator Adding [com.company.police.Incident] mapping to CompassConfiguration
spring.SearchableCompassFactoryBean Done building Compass
domain.DynamicDomainMethodUtils Adding searchable methods to [com.company.police.Incident]
searchable.SearchableGrailsPlugin Started Compass::GPS
compass.CompassGpsUtils Starting Searchable Plugin bulk index

堆栈跟踪

context.GrailsContextLoader Error initializing the application: No entities listed to be indexed, have you defined your entities correctly?
java.lang.IllegalArgumentException: No entities listed to be indexed, have you defined your entities correctly?
    at org.compass.gps.device.support.parallel.ConcurrentParallelIndexExecutor.performIndex(ConcurrentParallelIndexExecutor.java:88)
    at org.compass.gps.device.support.parallel.AbstractParallelGpsDevice.index(AbstractParallelGpsDevice.java:119)
    at org.compass.gps.impl.DefaultReplaceIndexCallback.buildIndexIfNeeded(DefaultReplaceIndexCallback.java:42)
    at org.compass.core.lucene.engine.manager.DefaultLuceneSearchEngineIndexManager$ReplaceIndexOperationCallback.firstStep(DefaultLuceneSearchEngineIndexManager.java:281)
    at org.compass.core.lucene.engine.manager.DefaultLuceneSearchEngineIndexManager.doOperate(DefaultLuceneSearchEngineIndexManager.java:218)
    at org.compass.core.lucene.engine.manager.DefaultLuceneSearchEngineIndexManager.doReplaceIndex(DefaultLuceneSearchEngineIndexManager.java:266)
    at org.compass.core.lucene.engine.manager.DefaultLuceneSearchEngineIndexManager.replaceIndex(DefaultLuceneSearchEngineIndexManager.java:261)
    at org.compass.gps.impl.SingleCompassGps.doIndex(SingleCompassGps.java:118)
    at org.compass.gps.impl.AbstractCompassGps.index(AbstractCompassGps.java:154)
    at org.compass.gps.impl.AbstractCompassGps.index(AbstractCompassGps.java:128)
    at grails.plugin.searchable.internal.compass.CompassGpsUtils.index(CompassGpsUtils.java:49)

Answer 1

问题在于使用具有非默认名称的数据源，在本例中为“police”。我在文档中没有看到任何地方提到该插件将无法与名称不同的数据源一起使用，而不仅仅是“数据源”。我会尽快更新他们的文档。

我找到了修复 here。如果该链接出现故障，这就是您要做的。将以下内容添加到resources.groovy：

import org.compass.gps.device.hibernate.HibernateGpsDevice
import grails.plugin.searchable.internal.compass.config.SessionFactoryLookup

beans = {
    compassGpsDevice(HibernateGpsDevice) { bean ->
        bean.destroyMethod = "stop"
        name = "hibernate"
        sessionFactory = { SessionFactoryLookup sfl ->
          sessionFactory = ref('sessionFactory_datasourceName') 
        }
        fetchCount = 5000
    }
}

要添加其他具有可索引类的数据源，请添加以下内容：

anotherUniquecompassGpsDevice(HibernateGpsDevice) { bean ->
    bean.destroyMethod = "stop"
    name = "unqiueHibernateName"
    sessionFactory = { SessionFactoryLookup sfl ->
        sessionFactory = ref('sessionFactory_uniquedatasource') 
    }
    fetchCount = 5000
  }

最后加上...

import org.compass.gps.impl.SingleCompassGps

compassGps(SingleCompassGps) {
    compass = ref('compass')
    gpsDevices = [compassGpsDevice, anotherUniqueCompassGpsDevice]
}