小贝子编程

OSGI 组件满足要求，但仍未激活



>我有一个不满意的OSGI组件，它似乎告诉我它很满意...

如果我键入ls，结果如下：

26  Active org.eclipse.kura.watchdog.WatchdogService org.eclipse.kura.linux.watchdog(bid=63)
82  Active com.company.product.dependencybucketimpl.DependencyBucketImpl            com.company.product.dependencybucketimpl(bid=122)
83  Unsatisfied com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl com.company.product.statemachineXXXXimpl(bid=123)

还有其他几个捆绑包，但这些是相关的捆绑包。

当我尝试专门查看Unsatisfied捆绑包时，似乎引用的两个捆绑包已成功激活。

osgi> ls -c 123
Components in bundle com.company.product.statemachineXXXXimpl:
ID  Component details
83  Component[
name = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
activate = activate
deactivate = deactivate
modified = modified
configuration-policy = optional
factory = null
autoenable = true
immediate = true
implementation = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
state = Unsatisfied
properties = {service.pid=com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl}
serviceFactory = false
serviceInterface = [com.company.product.common.PayloadReadyNotifier, com.company.product.common.StateMachineXXXX]
references = {
Reference[name = WatchdogService, interface = org.eclipse.kura.watchdog.WatchdogService, policy = static, cardinality = 1..1, target = null, bind = setWatchdogService, unbind = unsetWatchdogService]
Reference[name = DependencyBucket, interface = com.company.product.common.DependencyBucket, policy = static, cardinality = 1..1, target = null, bind = setDependencyBucket, unbind = unsetDependencyBucket]
}
located in bundle = com.company.product.statemachineXXXXimpl_1.0.0.dev [123]
]
Dynamic information :
The component is satisfied
All component references are satisfied
Component configurations :
Configuration properties:
logStateMachineTransitions = true
objectClass = String[com.company.product.common.PayloadReadyNotifier,com.company.product.common.StateMachineXXXX]
kura.service.pid = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
service.pid = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
systemIdleTimeout = 600
ChargerDischargeTimeout = 300
component.name = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
component.id = 178
Instances:

以下是相关捆绑包定义中的.xml：

<?xml version="1.0" encoding="UTF-8"?>
<component xmlns="http://www.osgi.org/xmlns/scr/v1.1.0"
name="com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl"
activate="activate"
configuration-policy="optional"
deactivate="deactivate"
enabled="true"
immediate="true"
modified="modified">
<implementation class="com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl"/>
<property name="service.pid"
type="String"
value="com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl"/>
<reference name="WatchdogService"
bind="setWatchdogService"
unbind="unsetWatchdogService"
interface="org.eclipse.kura.watchdog.WatchdogService"
cardinality="1..1"
policy="static"/>
<reference name="DependencyBucket"
bind="setDependencyBucket"
unbind="unsetDependencyBucket"
interface="com.company.product.common.DependencyBucket"
cardinality="1..1"
policy="static"/>
<service>
<provide interface="com.company.product.common.PayloadReadyNotifier"/>
<provide interface="com.company.product.common.StateMachineXXXX"/>
<!--<provide interface="com.company.product.common.ComponentStatusProvider"/>-->
</service>
</component>

在其他成功激活的捆绑包中，"实例："下列出了一个对象，但这里的情况并非如此。

我很困惑为什么如果"组件满意"和"所有组件引用都满意"，为什么 ls 命令显示组件"不满意"。想知道我该如何解决这个问题！任何帮助将不胜感激！

编辑：查看/var/log/kura-console.log并看到以下内容：

ENTRY org.eclipse.equinox.metatype 4 0 2018-05-02 21:03:45.009
!MESSAGE DataParser.finished() Missing element AD (Reference ID = com.company.product.dependencybucketimpl.DependencyBucketImpl.
!ENTRY org.eclipse.equinox.metatype 4 0 2018-05-02 21:03:45.018
!MESSAGE DataParser.finished() Object Class Definition ID not found com.company.product.dependencybucketimpl.DependencyBucketImpl.
!ENTRY com.company.product.dependencybucketimpl 4 0 2018-05-02 21:03:47.230
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.ServiceException: org.eclipse.equinox.internal.ds.ServiceReg.getService() returned a service object that is not an instance of the service class com.company.product.common.PayloadReadyNotifier
at org.eclipse.osgi.internal.serviceregistry.ServiceUse.getService(ServiceUse.java:174)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:468)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.getService(ServiceRegistry.java:467)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.getService(BundleContextImpl.java:594)
at org.eclipse.equinox.internal.ds.InstanceProcess.getService(InstanceProcess.java:730)
at org.eclipse.equinox.internal.ds.model.ComponentReference.bind(ComponentReference.java:347)
at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.bindReference(ServiceComponentProp.java:446)
at org.eclipse.equinox.internal.ds.InstanceProcess.dynamicBind(InstanceProcess.java:416)
at org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:334)
at org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry$1.run(ServiceRegistry.java:775)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:773)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
at org.eclipse.equinox.internal.ds.InstanceProcess.registerService(InstanceProcess.java:536)
at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:213)
at org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343)
at org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry$1.run(ServiceRegistry.java:775)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:773)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
at org.eclipse.equinox.internal.ds.InstanceProcess.registerService(InstanceProcess.java:536)
at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:213)
at org.eclipse.equinox.internal.ds.Resolver.buildNewlySatisfied(Resolver.java:473)
at org.eclipse.equinox.internal.ds.Resolver.enableComponents(Resolver.java:217)
at org.eclipse.equinox.internal.ds.SCRManager.performWork(SCRManager.java:816)
at org.eclipse.equinox.internal.ds.SCRManager$QueuedJob.dispatch(SCRManager.java:783)
at org.eclipse.equinox.internal.ds.WorkThread.run(WorkThread.java:89)
at org.eclipse.equinox.internal.util.impl.tpt.threadpool.Executor.run(Executor.java:70)

这里的"找不到对象类定义 ID"位看起来很有希望......我有双重和三重检查包裹名称的情况。

其次：

!ENTRY com.company.product.statemachineXXXXimpl 2 0 2018-05-02 21:03:47.284
!MESSAGE [SCR] Could not get the service object relevant to the reference. One possible reason is a circularity problem. Another possible reason is that BundleContext.getService() returns null.
Details:
Problematic reference = Reference[name = DependencyBucket, interface = com.company.product.common.DependencyBucket, policy = static, cardinality = 1..1, target = null, bind = setDependencyBucket, unbind = unsetDependencyBucket]
of service component = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
component implementation class = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
located in bundle with symbolic name = com.company.product.statemachineXXXXimpl
bundle location = osgi-dp:com.company.product.statemachineXXXXimpl
!ENTRY com.company.product.statemachineXXXXimpl 2 0 2018-05-02 21:03:47.286
!MESSAGE [SCR] ComponentReference.bind(): bind method 'setDependencyBucket' is not found or it is not accessible!
Details:
Problematic reference = Reference[name = DependencyBucket, interface = com.company.product.common.DependencyBucket, policy = static, cardinality = 1..1, target = null, bind = setDependencyBucket, unbind = unsetDependencyBucket]
of service component = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
component implementation class = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
located in bundle with symbolic name = com.company.product.statemachineXXXXimpl
bundle location = osgi-dp:com.company.product.statemachineXXXXimpl
!ENTRY org.eclipse.equinox.ds 2 0 2018-05-02 21:03:47.291
!MESSAGE Could not bind a reference of component com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl. The reference is: Reference[name = DependencyBucket, interface = com.company.product.common.DependencyBucket, policy = static, cardinality = 1..1, target = null, bind = setDependencyBucket, unbind = unsetDependencyBucket]
!ENTRY org.eclipse.equinox.ds 4 0 2018-05-02 21:03:47.352
!MESSAGE The component was not built because some of its references could not be bound. The component is Component[
name = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
activate = activate
deactivate = deactivate
modified = modified
configuration-policy = optional
factory = null
autoenable = true
immediate = true
implementation = com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl
state = Unsatisfied
properties = {service.pid=com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl}
serviceFactory = false
serviceInterface = [com.company.product.common.StateMachineXXXX]
references = {
Reference[name = WatchdogService, interface = org.eclipse.kura.watchdog.WatchdogService, policy = static, cardinality = 1..1, target = null, bind = setWatchdogService, unbind = unsetWatchdogService]
Reference[name = DependencyBucket, interface = com.company.product.common.DependencyBucket, policy = static, cardinality = 1..1, target = null, bind = setDependencyBucket, unbind = unsetDependencyBucket]
}
located in bundle = com.company.product.statemachineXXXXimpl_1.0.0.dev [92]
]

我很确定setDependencyBucket是在状态机实现文件中实现的，所以我认为真正的障碍可能不在这个块中。

在删除对PayloadReadyNotifier的依赖后，一些错误似乎得到了解决。剩下的还有：

!ENTRY org.eclipse.equinox.metatype 4 0 2018-05-02 21:19:12.360
!MESSAGE DataParser.finished() Missing element AD (Reference ID = com.freewire.mobi.dependencybucketimpl.DependencyBucketImpl.
!ENTRY org.eclipse.equinox.metatype 4 0 2018-05-02 21:19:12.364
!MESSAGE DataParser.finished() Object Class Definition ID not found com.freewire.mobi.dependencybucketimpl.DependencyBucketImpl.

感觉很亲近！这也许是.xml出了什么问题？

编辑#2：添加组件xml：

<?xml version="1.0" encoding="UTF-8"?>
<component xmlns="http://www.osgi.org/xmlns/scr/v1.1.0"
name="com.company.product.dependencybucketimpl.DependencyBucketImpl"
activate="activate"
configuration-policy="optional"
deactivate="deactivate"
enabled="true"
immediate="true"
modified="modified">
<implementation class="com.company.product.dependencybucketimpl.DependencyBucketImpl"/>
<property name="service.pid"
type="String"
value="com.company.product.dependencybucketimpl.DependencyBucketImpl"/>
<reference name="InverterManager"
bind="setInverterManager"
unbind="unsetInverterManager"
interface="com.company.product.common.InverterManager"
cardinality="1..1"
policy="static"/>
<reference name="BmsManager"
bind="setBmsManager"
unbind="unsetBmsManager"
interface="com.company.product.common.BmsManager"
cardinality="1..1"
policy="static"/>
<reference name="CanConnector"
bind="setCanConnector"
unbind="unsetCanConnector"
interface="com.company.product.common.CanConnector"
cardinality="1..1"
policy="static"/>
<reference name="ModbusManagerV1P2"
bind="setModbusManagerV1P2"
unbind="unsetModbusManagerV1P2"
interface="com.company.product.common.ModbusManagerV1P2"
cardinality="1..1"
policy="static"/>
<reference name="ModbusConnector"
bind="setModbusConnector"
unbind="unsetModbusConnector"
interface="com.company.product.common.ModbusConnector"
cardinality="1..1"
policy="static"/>
<reference name="GpioManagerL2Gen"
bind="setGpioManagerL2Gen"
unbind="unsetGpioManagerL2Gen"
interface="com.company.product.common.GpioManagerL2Gen"
cardinality="1..1"
policy="static"/>
<reference name="UnitConfiguration"
bind="setUnitConfiguration"
unbind="unsetUnitConfiguration"
interface="com.company.product.common.UnitConfiguration"
cardinality="1..1"
policy="static"/>
<service>
<!--<provide interface="com.company.product.common.PayloadReadyNotifier"/>-->
<provide interface="com.company.product.common.DependencyBucket"/>
<!--<provide interface="com.company.product.common.ComponentStatusProvider"/>-->
</service>
</component>

和元型：

<?xml version="1.0" encoding="UTF-8"?>
<MetaData xmlns="http://www.osgi.org/xmlns/metatype/v1.2.0"
localization="en_us">
<OCD id="com.company.product.dependencybucketimpl.DependencyBucketImpl"
name="DependencyBucketImpl"
description="">
</OCD>
<Designate pid="com.company.product.dependencybucketimpl.DependencyBucketImpl">
<Object ocdref="com.company.product.dependencybucketimpl.DependencyBucketImpl"/>
</Designate>
</MetaData>

此错误消息可能是所有其他错误消息的根本原因：

org.osgi.framework.ServiceException: org.eclipse.equinox.internal.ds.ServiceReg.getService() returned a service object that is not an instance of the service class com.company.product.common.PayloadReadyNotifier

您尚未显示实现类com.company.product.statemachineXXXXimpl.StateMachineXXXXImpl的代码。但是该错误表明它没有实现或扩展类型com.company.product.common.PayloadReadyNotifier，您已将其声明为组件的服务接口。

发布 OSGi 服务时，实现类必须可强制转换为您尝试在其下发布的所有服务接口。

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