＆＃34;骆驼蓝图＆＃34;在蓝图声明中找不到名称空间（Felix中的白羊座）

Question

我试图运行一个独立的OSGi框架来运行其中执行驼峰路由的蓝图捆绑包。 OSGi框架是Apache Felix，蓝图实现是Apache Aries。

以下捆绑包加载到框架的BundleContext：

现在我有一个测试包，其蓝图定义包含camelContext，如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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">

    <camelContext xmlns="http://camel.apache.org/schema/blueprint">
        <route id="testRoute1">
            <from uri="timer:foo?period=5000" />
            <log message="Hello world!" />
        </route>
    </camelContext>

</blueprint>

即使加载了所有捆绑包并解决了需求，蓝图容器也会提供以下日志：

[de.hff.yosgi.test1.Test] : Installing test bundle
[org.apache.aries.blueprint.container.BlueprintExtender] : Starting BlueprintContainer destruction process for bundle osgi-test1
[org.apache.aries.blueprint.container.BlueprintExtender] : Not a blueprint bundle or destruction of BlueprintContainer already finished for osgi-test1.
[org.apache.aries.blueprint.container.BlueprintExtender] : Starting BlueprintContainer destruction process for bundle osgi-test1
[org.apache.aries.blueprint.container.BlueprintExtender] : Not a blueprint bundle or destruction of BlueprintContainer already finished for osgi-test1.
[de.hff.yosgi.test1.Test] : Test bundle installed, starting
[org.apache.aries.blueprint.container.BlueprintExtender] : Starting BlueprintContainer destruction process for bundle osgi-test1
[org.apache.aries.blueprint.container.BlueprintExtender] : Not a blueprint bundle or destruction of BlueprintContainer already finished for osgi-test1.
[org.apache.aries.blueprint.container.BlueprintExtender] : Starting BlueprintContainer destruction process for bundle osgi-test1
[org.apache.aries.blueprint.container.BlueprintExtender] : Not a blueprint bundle or destruction of BlueprintContainer already finished for osgi-test1.
[org.apache.aries.blueprint.container.BlueprintExtender] : Scanning bundle osgi-test1 for blueprint application
[org.apache.aries.blueprint.container.BlueprintExtender] : Found blueprint application in bundle osgi-test1 with paths: [bundle://24.0:0/OSGI-INF/blueprint/blueprint.xml]
[org.apache.aries.blueprint.container.BlueprintExtender] : Scheduling creation of blueprint bundle osgi-test1 asynchronously
[org.apache.aries.blueprint.container.BlueprintContainerImpl] : Running blueprint container for bundle osgi-test1 in state Unknown
[org.apache.aries.blueprint.container.BlueprintEventDispatcher] : Sending blueprint container event BlueprintEvent[type=CREATING] for bundle osgi-test1
[de.hff.yosgi.test1.Test] : Test bundle started
[org.apache.aries.blueprint.container.BlueprintContainerImpl] : Running blueprint container for bundle osgi-test1 in state WaitForNamespaceHandlers
[org.apache.aries.blueprint.container.BlueprintContainerImpl] : Bundle osgi-test1 is waiting for namespace handlers [http://camel.apache.org/schema/blueprint]
[org.apache.aries.blueprint.container.BlueprintEventDispatcher] : Sending blueprint container event BlueprintEvent[type=GRACE_PERIOD, dependencies=[(&(objectClass=org.apache.aries.blueprint.NamespaceHandler)(osgi.service.blueprint.namespace=http://camel.apache.org/schema/blueprint))]] for bundle osgi-test1

这里重要的一行是Waiting for namespace handlers：测试包无法找到camel-blueprint命名空间。但是这个命名空间应该在已安装的camel-blueprint包中定义。

如果没有蓝图中的camelContext，一切正常（蓝图服务已加载并初始化）。

有没有人遇到类似的问题？什么阻止测试包访问camel-blueprint提供的命名空间？

Answer 1

我们通过清理依赖项来解决此问题。实际上只需要以下内容：

此外，要成功使Camel在Aries Blueprint中运行，在实例化框架时还需要一个额外的参数。这允许捆绑包访问sun.*包。

Iterator<FrameworkFactory> iterator = 
        ServiceLoader.load(FrameworkFactory.class).iterator();
FrameworkFactory factory = iterator.next();

Map<> configuration = new HashMap<String, String>();
configuration.put("org.osgi.framework.bootdelegation", "sun.*");
this.framework = factory.newFramework(configuration);