Karaf功能安装缺少要求osgi.service但它就在那里

我有一个数据源功能,可以将数据源导出为OSGi服务:

> services -p 2038
OPS4J Pax JDBC Config (2038) provides:
--------------------------------------
objectClass = [org.osgi.service.cm.ManagedServiceFactory]
service.bundleid = 2038
service.id = 211
service.pid = org.ops4j.datasource
service.scope = singleton
----
databaseName = foobar
dataSourceName = fooDatasource
felix.fileinstall.filename = file:/home/foousr/apache-karaf-4.0.6/etc/org.ops4j.datasource-foo.cfg
objectClass = [javax.sql.DataSource]
osgi.jndi.service.name = fooDatasource
service.bundleid = 2038
service.factoryPid = org.ops4j.datasource
service.id = 251
service.pid = org.ops4j.datasource.b3020619-71b9-4876-94c3-477f3e4a503d
service.scope = singleton
url = jdbc:oracle:thin:@dbserver:99999/foo
user = FOOUSR

作为创建和注册此数据源服务的ds-feature的一部分,它还包含一个可用于测试数据源的ping-ds软件包:

> jdbc:ping-ds fooDatasource
Ping from localhost(127.0.0.1) as FOOUSR to schema FOOUSR on dbserver/foo

我有一个使用该数据源的蓝图包:

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
  xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camel="http://camel.apache.org/schema/blueprint"
    xsi:schemaLocation="
       http://www.osgi.org/xmlns/blueprint/v1.0.0
       http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
       http://camel.apache.org/schema/blueprint
       http://camel.apache.org/schema/blueprint/camel-blueprint.xsd
       http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0
       http://svn.apache.org/repos/asf/aries/trunk/blueprint/blueprint-cm/src/main/resources/org/apache/aries/blueprint/compendium/cm/blueprint-cm-1.1.0.xsd">
    <reference id="ds" interface="javax.sql.DataSource" filter="(dataSourceName=fooDatasource)"/>
    <camelContext id="fooDatasourceTestContext" trace="true" xmlns="http://camel.apache.org/schema/blueprint">
        <route id="fooDatasourceTest">
            <from uri="timer:/fooDatasourceTest?fixedRate=true&amp;repeatCount=1"/>
            <setBody>
                <simple>
                    select * from FOOUSR.FOOTABLE
                </simple>
            </setBody>
            <to uri="jdbc:ds" />
            <to uri="log:fooDatasourceTest?showBody=true"/>
        </route>
    </camelContext>
</blueprint>

当我做一个功能时:安装foo-datasource-test-feature我得到一个错误抱怨无法找到数据源服务 – 但它在那里我可以使用我的ping-ds cmd访问它.

    Error executing command: Unable to resolve root: missing requirement [root] osgi.identity;
 osgi.identity=foo-datasource-test-feature; type=karaf.feature; version="[0.0.1.SNAPSHOT,0.0.1.SNAPSHOT]";
 filter:="(&(osgi.identity=foo-datasource-test-feature)(type=karaf.feature)(version>=0.0.1.SNAPSHOT)(version<=0.0.1.SNAPSHOT))"
 [caused by: Unable to resolve foo-datasource-test-feature/0.0.1.SNAPSHOT: missing requirement
 [foo-datasource-test-feature/0.0.1.SNAPSHOT] osgi.identity; osgi.identity=com.company.project.foo-datasource-test;
 type=osgi.bundle; version="[0.0.1.SNAPSHOT,0.0.1.SNAPSHOT]"; resolution:=mandatory [caused by: Unable to resolve
 com.company.project.foo-datasource-test/0.0.1.SNAPSHOT: missing requirement
 [com.company.project.foo-datasource-test/0.0.1.SNAPSHOT] osgi.service; effective:=active;
 filter:="(&(objectClass=javax.sql.DataSource)(dataSourceName=fooDatasource))"]]

似乎抱怨它无法找到已安装的OSGi服务的数据源:

osgi.service; effective:=active;
 filter:="(&(objectClass=javax.sql.DataSource)(dataSourceName=fooDatasource))"]]

有什么奇怪的,除了我编写的ping-ds命令工作得很好的事实,如果我只是安装它所抱怨的功能中的测试包,它就可以了.这意味着这是该功能的某种问题:安装过程本身.

在foo-datasource-test-feature功能中,我包含一个引用ds-feature的foo-core-feature:

FOO – 数据源 – 测试 – feature.xml的:

<?xml version="1.0" encoding="utf-8"?>
<features name="foo-datasource-test" xmlns="http://karaf.apache.org/xmlns/features/v1.4.0">
    <feature name="foo-datasource-test-feature" version="${project.version}">
        <feature>foo-core-feature</feature>
        <bundle>mvn:com.company.project/foo-datasource-test/${project.version}</bundle>
    </feature>
</features

FOO-核心feature.xml的:

<?xml version="1.0" encoding="utf-8"?>
<features name="foo-core" xmlns="http://karaf.apache.org/xmlns/features/v1.4.0">
    <feature name="foo-core-feature" version="${project.version}">
        <feature>ds-feature</feature>
        ...
    </feature>
</features>

DS-features.xml:

<?xml version="1.0" encoding="UTF-8"?>
<features name="ds-features" xmlns="http://karaf.apache.org/xmlns/features/v1.0.0">
    <feature name="ds-feature" version="${project.version}" >
        <feature>pax-jdbc-config</feature>
        ...
        <bundle start-level="86">mvn:com.company.commons/foo-datasource/${project.version}</bundle>
    </feature>
    <feature name="ds-ping-datasource" version="${project.version}" >
        <bundle start-level="80">mvn:com.company.commons/foo-ping-datasource/${project.version}</bundle>
        <feature>pax-jdbc-config</feature>
    </feature>
</features>

这会导致问题吗?如果是这样,因为foo-datasource-test-feature依赖于已安装的数据源服务,那么在我的功能中描述这种依赖关系的正确方法是什么呢?

使用:

Karaf版本4.0.6

骆驼版2.16.5

UPDATE

我注释掉了对核心功能的引用,以便只有捆绑包在测试功能中,它仍然会抱怨.因此,这与功能依赖关系的功能无关.

我打算尝试karaf 4.1.0版.

UPDATE

4.1.0没有喜悦.作为旁注,由于还没有构建activemq-client 5.14.4,因此存在更多问题.

最佳答案 显然,功能:安装正在寻找不在OSGi服务注册表中的服务,而是在其他地方的MANIFEST中查找.一位同事让我看着MANIFEST文件,我注意到在foo-datasource-test中它的MANIFEST文件中有一个Import-Service头:

Import-Service: javax.sql.DataSource;multiple:=false;filter=(dataSourceName=fooDatasource)

似乎错误是因为它正在执行我的MANIFEST文件要求它做的事情 – 即导入服务.为什么它在OSGi服务注册表中找不到它,我不知道.但是在任何MANIFEST文件中都没有相应的Export-Service.但是,由于Import-Service和Export-Service明显被弃用,我的旧代码运行在我正在迁移到karaf的保险丝上没有通知;-)我决定只是找到一种方法来删除任何Import-或Export-服务标头.

this advice之后,我补充道

<_removeheaders>Import-Service,Export-Service</_removeheaders>

在我的foo-core-feature pom.xml中的maven-bundle-plugin的指令部分(回想一下foo-datasource-test-feature依赖于foo-core-feature):

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.felix</groupId>
                <artifactId>maven-bundle-plugin</artifactId>
                <version>3.2.0</version>
                <extensions>true</extensions>
                <configuration>
                    <instructions>
                    . . .
                        <Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
                        <Import-Package>*,org.apache.camel.core.osgi</Import-Package>
                        <_removeheaders>Import-Service,Export-Service</_removeheaders>
                    </instructions>
                </configuration>
            </plugin>
        <plugins>
</build>

在mvn clean部署之后,功能:安装工作,它运行得很好(找到数据源,使用它并返回sql结果集).

像往常一样,在寻找很长一段时间之后,它是简单或基本的东西.我不确定为什么功能:安装不会只检查OSGi注册表,但是可能有一个很好的理由(我希望)因为它不依赖于它并寻找一个MANIFEST头.不确定Provide-Capability标头在这种情况下是否运行得更好,但可能会尝试一下.

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