我目前从 OSGi、iPOJO 和 iPOJO Annotations 开始,并尝试构建一个简单的组件以部署在 Felix 中。不幸的是,我遇到了各种问题,这些问题需要我几个小时才能解决,或者在浪费几个小时后我什至无法解决,如下所示:
我想使用我们使用 Maven 构建的 OSGi 包中的现有库。该库目前不是“OSGI-ified”,我们不打算在中期这样做。因此,我想在包中包含这个库及其所有依赖项,使用...:
<Embed-Dependency>*</Embed-Dependency>
<Embed-Transitive>true</Embed-Transitive>
我现在拥有的是 OSGi 组件的以下 pom.xml 文件:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>foo</groupId>
<artifactId>samplecomponent</artifactId>
<packaging>bundle</packaging>
<version>0.0.1-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<source>1.6</source>
<target>1.6</target>
<compilerArguments>
<encoding>UTF-8</encoding>
</compilerArguments>
<showDeprecation>true</showDeprecation>
<verbose>true</verbose>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<extensions>true</extensions>
<version>2.3.6</version>
<configuration>
<instructions>
<Bundle-SymbolicName>${project.artifactId}</Bundle-SymbolicName>
<Embed-Dependency>*</Embed-Dependency>
<Embed-Transitive>true</Embed-Transitive>
<Embed-Directory>lib</Embed-Directory>
<Export-Package>*</Export-Package>
<_exportcontents>*</_exportcontents>
</instructions>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-ipojo-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<goals>
<goal>ipojo-bundle</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.ipojo.annotations</artifactId>
<version>1.8.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>foo</groupId>
<artifactId>mylibrary</artifactId>
<version>1.2.3</version>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
bundle jar 文件的构建没有任何问题,但是在 Apache Felix 上部署和启动 bundle 时,出现以下错误:
g! install file:/…/samplecomponent-0.0.1-SNAPSHOT.jar
Bundle ID: 8
g! start 8
org.osgi.framework.BundleException: Unresolved constraint in bundle samplecomponent [8]: Unable to resolve 8.0: missing requirement [8.0] osgi.wiring.package; (osgi.wiring.package=com.sun.jdmk.comm)
我已将日志级别设置为最高详细程度,遗憾的是没有更多信息。当我删除 mylibrary 时,捆绑包会毫无问题地启动。
任何建议表示赞赏!