关于Wildfly 9.0.2.Final的Deltaspike Ver 1.7.2
我在实体bean上使用JPA @EntityListeners(AuditEntityListener.class)和Deltaspike Data（@CreatedOn，@ModifiedOn和@ModifiedBy注释）的审计功能，区别在于我有自定义的java.time.ChronoLocalDateTime实现，它将任何LocalDateTime + ZoneOffset或ZonedDateTime转换为UTC约会时间。
public class UTCDateTime implements ChronoLocalDateTime<LocalDate>, Serializable {
private static final long serialVersionUID = 6492792765662073566L;
private static final ZoneOffset UTC = ZoneOffset.UTC;
private final LocalDateTime datetime;
// a lot of other details left out
}
@MappedSuperclass
public class InsertableAuditableBean extends BaseBean implements InsertableAuditable {
@NotNull
@Size(min = 1, max = 50)
@Column(name = "zz_inserted_by", length = 50, nullable = false)
private String insertedBy;
@CreatedOn
@NotNull
@Temporal(value = TemporalType.TIMESTAMP)
@Column(name = "zz_inserted_on", nullable = false)
private UTCDateTime insertedOn;
// getters & setters
}
@MappedSuperclass
public class UpdateableAuditableBean extends InsertableAuditableBean implements UpdateableAuditable {
@ModifiedBy
@Size(min = 1, max = 50)
@Column(name = "zz_updated_by", length = 50, nullable = true)
private String updatedBy;
@ModifiedOn
@Temporal(value = TemporalType.TIMESTAMP)
@Column(name = "zz_updated_on", nullable = true)
private UTCDateTime updatedOn;
// getters & setters
}
@Entity
@EntityListeners(AuditEntityListener.class)
@Table(schema = "data", name = "manufacturer", uniqueConstraints = {
@UniqueConstraint(columnNames = { "man_name", "man_country" })
})
@AttributeOverrides({
@AttributeOverride(name = "primaryKey", column = @Column(name = "man_serial")),
@AttributeOverride(name = "insertedBy", column = @Column(name = "man_inserted_by")),
@AttributeOverride(name = "insertedOn", column = @Column(name = "man_inserted_on")),
@AttributeOverride(name = "updatedBy", column = @Column(name = "man_updated_by")),
@AttributeOverride(name = "updatedOn", column = @Column(name = "man_updated_on"))
})
@SequenceGenerator(name = "default_seq", schema = "data", sequenceName = "manufacturer_man_serial_seq",
allocationSize = 1)
public class Manufacturer extends MirroredUpdateableAuditableBean implements IManufacturer {
// nothing special here
}
UTCDateTime类还有一个自定义AttributeConverter，因为epoch值保存在数据库中。
@Converter(autoApply = true)
public class UTCDateTimePersistenceConverter implements AttributeConverter<UTCDateTime, Long> {
@Override
public Long convertToDatabaseColumn(final UTCDateTime entityValue) {
Long res = null;
if (entityValue != null) {
res = entityValue.toMillis();
}
return res;
}
@Override
public UTCDateTime convertToEntityAttribute(final Long databaseValue) {
UTCDateTime res = null;
if (databaseValue != null) {
res = new UTCDateTime(Instant.ofEpochMilli(databaseValue));
}
return res;
}
}
现在当我持久化实体时，我得到以下异常（最后一点与真正的原因）：
Caused by: org.apache.deltaspike.data.api.QueryInvocationException: Failed calling Repository: [Repository=systems.apace.data.manufacturer.model.dao.ManufacturerDAO,entity=systems.apace.data.manufacturer.model.Manufacturer,method=persist,exception=class java.lang.reflect.InvocationTargetException,message=null
at systems.apace.data.manufacturer.services.ManufacturerServiceBeanIntegrationTest.testInsertBean(ManufacturerServiceBeanIntegrationTest.java:55)
Caused by: java.lang.reflect.InvocationTargetException
at systems.apace.data.manufacturer.services.ManufacturerServiceBeanIntegrationTest.testInsertBean(ManufacturerServiceBeanIntegrationTest.java:55)
Caused by: org.apache.deltaspike.data.impl.audit.AuditPropertyException: Failed to set property Manufacturer.insertedOn, is this a temporal type?
at systems.apace.data.manufacturer.services.ManufacturerServiceBeanIntegrationTest.testInsertBean(ManufacturerServiceBeanIntegrationTest.java:55)
Caused by: java.lang.IllegalArgumentException: Annotated field is not a date class: class za.co.t9.common.utils.time.UTCDateTime
at systems.apace.data.manufacturer.services.ManufacturerServiceBeanIntegrationTest.testInsertBean(ManufacturerServiceBeanIntegrationTest.java:55)
有没有办法实现我自己的org.apache.deltaspike.data.impl.audit.PrePersistAuditListener和org.apache.deltaspike.data.impl.audit.PreUpdateAuditListener并使用它们来创建UTCDateTime的实例？
编写我自己的EntityListener - > UTCDateTimeAuditListener并使用@EntityListeners(UTCDateTimeAuditEntityListener.class) UTCDateTimeAuditListener遵循org.apache.deltaspike.data.impl.audit.AuditEntityListener方法是否正确？
其次，我是否需要在某处使用CDI限定符以确保我的UTCDateTimeAuditEntityListener获得对正确的PrePersistAuditListener和PreUpdateAuditListener实现的引用，这些实现知道如何构建UTCDateTime实例？
最后，我不知道它是否相关，但org.apache.deltaspike.data.impl.audit.TimestampsProvider适合这种情况？
我在回答我的问题方面取得了一些进展。到目前为止我做了什么。没有必要使用DeltaSpike提供的定制AuditEntityListener就足够了。
我创建了一个能够处理我的TimestampsProvider对象的UTCDateTime的新实现。
@Alternative
@Dependent
public class UTCDateTimeAuditProvider implements PrePersistAuditListener, PreUpdateAuditListener {
// implementation details not important
}
beans.xml还将此列为CDI @Alternative
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
version="1.1" bean-discovery-mode="annotated">
<alternatives>
<class>systems.apace.data.manufacturer.model.UTCDateTimeAuditProvider</class>
</alternatives>
</beans>
apache-deltaspike.properties的内容
globalAlternatives.org.apache.deltaspike.jpa.spi.transaction.TransactionStrategy=org.apache.deltaspike.jpa.impl.transaction.ContainerManagedTransactionStrategy
现在的问题是两个AuditProvider实例都被执行，首先是我的实现（UTCDateTimeAuditProvider），然后是默认的TimestampsProvider
2016-12-13 01:29:22,929 INFO Apace-BPS s.a.d.m.m.UTCDateTimeAuditProvider [ServerService Thread Pool -- 319] [Unknown Id] - prePersist: class systems.apace.data.manufacturer.model.UTCDateTimeAuditProvider
2016-12-13 01:29:22,931 INFO Apace-BPS s.a.d.m.m.UTCDateTimeAuditProvider [ServerService Thread Pool -- 319] [Unknown Id] - Updated property Manufacturer.insertedOn with 2016-12-12T23:29:22.930
2016-12-13 01:29:22,932 INFO Apace-BPS z.c.t.c.b.e.EntityManagerProducer [ServerService Thread Pool -- 319] [Unknown Id] - username of Principal: anonymous
2016-12-13 01:29:22,932 FINER [org.apache.deltaspike.data.impl.audit.AuditProvider] (ServerService Thread Pool -- 319) Updated Manufacturer.updatedBy with anonymous
2016-12-13 01:29:22,935 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 319) MSC000001: Failed to start service jboss.deployment.subunit."bpsserver.ear"."systems-apace-data-model-1.0-SNAPSHOT.jar".component.ManufacturerSi
ngleton.START: org.jboss.msc.service.StartException in service jboss.deployment.subunit."bpsserver.ear"."systems-apace-data-model-1.0-SNAPSHOT.jar".component.ManufacturerSingleton.START: java.lang.IllegalStateException: WFLYEE0042: Failed
to construct component instance
at org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:57)
...
Caused by: org.apache.deltaspike.data.impl.audit.AuditPropertyException: Failed to set property Manufacturer.insertedOn, is this a temporal type?
at org.apache.deltaspike.data.impl.audit.TimestampsProvider.setProperty(TimestampsProvider.java:86)
at org.apache.deltaspike.data.impl.audit.TimestampsProvider.updateTimestamps(TimestampsProvider.java:67)
at org.apache.deltaspike.data.impl.audit.TimestampsProvider.prePersist(TimestampsProvider.java:43)
at org.apache.deltaspike.data.impl.audit.AuditEntityListener.persist(AuditEntityListener.java:42)
...
Caused by: java.lang.IllegalArgumentException: Annotated field is not a date class: class za.co.t9.common.utils.time.UTCDateTime
at org.apache.deltaspike.data.impl.audit.TimestampsProvider.now(TimestampsProvider.java:115)
at org.apache.deltaspike.data.impl.audit.TimestampsProvider.setProperty(TimestampsProvider.java:79)
... 115 more
我已经尝试了各种组合，只用注释指定我的@Alternative实现，或者只在beans.xml中指定我的，并且在classes.xml和beans.xml中都指定。
有没有人知道为什么默认的TimestampsProvider在我的@Alternative实现后执行？
Wildfly 9.0.2上的Deltaspike Ver 1.7.2.Final with Weld 2.2.16（SP1）
Deltaspike数据审计不支持Java 8 Date和Time API。您可以将@PrePersist，@ PreUpdate方法与Deltaspike @ModifiedBy字段合并为所有可审计实体的共同祖先（受益：无需自定义获取主体名称的方式）。