Question

我在让我的Camel路由在OSGI（Equinox）-Bundle和Plug-In项目中工作时遇到了问题。

路线看起来像：

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");
    }
}

应该启动Camel上下文的My Test类：

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

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

使用OSGI Framework Run配置在Eclipse中启动该包。

控制台：

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？没有osgi，作为标准的java应用程序，该示例有效;但是我在其中有一个主要方法，其中包含驼峰语境。

我尝试使用Activator来启动驼峰上下文：

public class Activator implements BundleActivator {

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

         Test.run();

                }
    }

但这导致错误，如

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

可能是Activator中的Test.run（）出现问题，因为在启动所有需要的bundle / components之前调用了run方法？但是如何启动骆驼语境呢？

更新1

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

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"

＆安培;

 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"

但是找不到这个捆绑..

更新2：

的原因

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

我下载了httpasyncclient-osgi-4.0-beta3.jar并将 org.apache.http.nio.conn 添加到导入中。

之后我遇到了问题，前一个包需要例如 org.apache.http.client 或 org.apache.http.auth 。所以我下载了 httpclient-osgi-4.2.1.jar 和 httpclient-osgi-4.2.2.jar （导致一些导入版本是4.2.1版本，有些是4.2.2），包含所需的类。但是尽管将这些捆绑包添加到午餐配置中，我得到了

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)

我不明白这个例外，因为我将 org.apache.http.nio.conn 添加到导入。

搜索需要 org.apache.http.nio.conn 的包，找到cxf-2.7.3.jar。但我认为使用骆驼的cfx组件我也需要这个包..

Answer 1

使用OSGi时需要使用OsgiDefaultCamelContext。这个类应该在camel-core-osgi中。

Answer 2

你可以试试为什么懒惰的实例化。如果bundle的start策略设置为'lazy'，它只会加载类，并在其中一个类被另一个bundle加载时启动。 http://www.osgi.org/Design/LazyStart

如何在osgi插件项目中启动camelcontext？

2 个答案: