如何在osgi插件项目中启动camelcontext？

Question

我在让我的Camel路线在OSGI（Equinox）-捆绑包和插件项目中工作时遇到了问题。

路线如下所示：

public class Example2Routes extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        this.from("cxf:http://localhost:8080/exampleWS?wsdlURL=META-INF/exampleWS.wsdl&dataFormat=PAYLOAD").to("stream:out");
    }
}

我的测试类应该启动Camel上下文：

public class Test {
    public static void run() throws Exception {

        DefaultCamelContext camelContext = new DefaultCamelContext();
        camelContext.addRoutes(new Example2Routes());
        camelContext.start();
            }
    }

这个包在Eclipse中使用OSGI框架运行配置启动。

安慰：

osgi> 19:53:17.712  DEBUG  org.apache.cxf.common.logging.LogUtils:140     Using org.apache.cxf.common.logging.Slf4jLogger for logging.
19:53:17.728  INFO   org.apache.cxf.bus.osgi.CXFActivator:88        Adding the extensions from bundle org.apache.camel.camel-cxf-transport (64) [org.apache.camel.component.cxf.transport.CamelTransportFactory]
19:53:17.743  INFO   org.apache.camel.impl.osgi.Activator:84        Camel activator starting
19:53:17.743  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: InvokerInf
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.eclipse.osgi.services
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.eclipse.equinox.util
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: InvokerImpl
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: ch.qos.logback.core
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: ch.qos.logback.classic
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: wsdl4j
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.commons.logging
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: com.springsource.javax.activation
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: javax.mail
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.ws.xmlschema.core
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.cxf.bundle
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.springframework.transaction
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.camel.camel-cxf
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/cxf in bundle org.apache.camel.camel-cxf
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/cxfbean in bundle org.apache.camel.camel-cxf
19:53:17.760  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/cxfrs in bundle org.apache.camel.camel-cxf
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.neethi
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: slf4j.api
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: com.springsource.org.apache.xml.resolver
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: javax.ws.rs.javax.ws.rs-api
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.camel.camel-spring
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/spring-event in bundle org.apache.camel.camel-spring
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/spel in bundle org.apache.camel.camel-spring
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.springframework.beans
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.commons.codec
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: target
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: log4j
19:53:17.775  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.springframework.core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.springframework.expression
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.eclipse.equinox.ds
19:53:17.791  INFO   org.apache.camel.impl.osgi.Activator:87        Camel activator started
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/bean in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/browse in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/class in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/dataset in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/direct in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/direct-vm in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/file in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/language in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/log in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/mock in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/properties in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/ref in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/seda in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/stub in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/test in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/timer in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/validator in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/vm in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/xslt in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/bean in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/constant in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/file in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/header in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/property in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/ref in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/simple in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/tokenize in bundle org.apache.camel.camel-core
19:53:17.791  DEBUG  org.apache.camel.impl.osgi.Activator:143       Found entry: META-INF/services/org/apache/camel/language/xpath in bundle org.apache.camel.camel-core
19:53:17.807  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.camel.camel-cxf-transport
19:53:17.807  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.springframework.context
19:53:17.807  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: CamelOSGIExample
19:53:17.807  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.eclipse.osgi

但是现在如何“启动”CamelContext呢？没有osgi，作为一个标准的java应用程序，这个例子是有效的;但在那里，我有一个主要的方法，其中有骆驼的背景。

我尝试用一个激活器来启动camel上下文:

public class Activator implements BundleActivator {

    @Override
    public void start(BundleContext arg0) throws Exception {

         Test.run();

                }
    }

但是这导致错误

Failed to resolve endpoint: cxf://http://localhost:8081/exampleWS?dataFormat=PAYLOAD&wsdlURL=META-INF%2FexampleWS.wsdl due to: No component found with scheme: cxf

虽然控制台说：

20:13:04.319  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.ws.xmlschema.core
20:13:04.319  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.cxf.bundle
20:13:04.319  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.springframework.transaction
20:13:04.319  DEBUG  org.apache.camel.impl.osgi.Activator:97        Bundle started: org.apache.camel.camel-cxf
20:13:04.319  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/cxf in bundle org.apache.camel.camel-cxf
20:13:04.319  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/cxfbean in bundle org.apache.camel.camel-cxf
20:13:04.319  DEBUG  org.apache.camel.impl.osgi.Activator:128       Found entry: META-INF/services/org/apache/camel/component/cxfrs in bundle org.apache.camel.camel-cxf

也许Activator中Test.run（）的问题发生是因为在启动所有需要的捆绑包/组件之前调用了run方法？但是，否则如何开始骆驼语境呢？

更新1

更改为 OsgiDefaultCamelContext。做了一些进口。现在我得到：

The bundle "org.apache.httpcomponents.httpclient_4.2.0 [119]" could not be resolved. Reason: Missing Constraint: Import-Package: org.apache.http; version="4.2.0"

 The bundle "CamelOSGIExample_1.0.0.qualifier [120]" could not be resolved. Reason: Missing Constraint: Import-Package: org.apache.http.nio.conn; version="4.0.0.beta3"

但找不到这个捆绑包。

更新2：

原因

java.lang.ClassNotFoundException: org.apache.http.nio.conn.ClientAsyncConnectionManager

我下载了httpasyncclient-osgi-4.0-beta3.jar并添加了org.apache.http.nio。连接到进口。

之后我遇到了问题，以前的包需要org.apache.http.client或org.apache.http.auth，所以我下载了httpclient-osgi-4.2.1.jar和http client-OSGi-4.2.2 . 2 . jar(因为4.2.1版需要一些导入，4 . 2 . 2版需要一些导入)，它们包含了需要的类。但是尽管将这个包添加到午餐配置中，我还是得到了

org.osgi.framework.BundleException: Exception in siServer.Activator.start() of bundle CamleOSGIExample.
    at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:734)
...
Caused by: java.lang.NoClassDefFoundError: org/apache/http/nio/conn/ClientAsyncConnectionManager
    at java.lang.Class.getDeclaredConstructors0(Native Method)
...
Caused by: java.lang.ClassNotFoundException: org.apache.http.nio.conn.ClientAsyncConnectionManager
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)
...
Root exception:
java.lang.NoClassDefFoundError: org/apache/http/nio/conn/ClientAsyncConnectionManager
    at java.lang.Class.getDeclaredConstructors0(Native Method)
...
Caused by: java.lang.ClassNotFoundException: org.apache.http.nio.conn.ClientAsyncConnectionManager
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)  

我不明白这个异常,因为我添加了o

搜索需要org.apache.http.nio的捆绑包。连接并找到了cxf-2.7.3.jar。但我认为，使用camel的cfx组件，我还需要这个包。。

Answer 1

你可以试试它为什么延迟实例化。如果一个外滩

Answer 2

您需要使用一个OsgiDefaultCamelContext当哟