У меня есть простой пакет Karaf типа Hello World, работающий внутри Apache ServiceMix 6.1.0 с использованием модуля Джексона Afterburner< /а>. Код активатора выглядит следующим образом:
public class HelloWorldActivator implements BundleActivator {
@Override
public void start(BundleContext bundleContext) throws Exception {
System.out.println("STARTING DEMO: hello, world\n");
System.out.println(getJsonDataAsString());
}
@Override
public void stop(BundleContext bundleContext) throws Exception {
System.out.println("STOPPING DEMO");
}
private String getJsonDataAsString() {
JsonDataBlob jsonDataBlob = new JsonDataBlob();
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.registerModule(new AfterburnerModule());
try {
return objectMapper.writeValueAsString(jsonDataBlob);
} catch(Exception e) {
e.printStackTrace();
}
return "";
}
}
pom.xml выглядит следующим образом: -
<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>com.hello</groupId>
<artifactId>world</artifactId>
<version>0.0.1</version>
<packaging>bundle</packaging>
<name>Hello World</name>
<dependencies>
<!-- OSGi -->
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.core</artifactId>
<version>4.3.1</version>
</dependency>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.compendium</artifactId>
<version>4.3.1</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20160212</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-afterburner</artifactId>
<version>2.7.1</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<excludes>
<exclude>**/com/hello/main/*</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>2.4.0</version>
<inherited>true</inherited>
<extensions>true</extensions>
<configuration>
<instructions>
<Bundle-SymbolicName>${project.artifactId}</Bundle-SymbolicName>
<Bundle-Version>${project.version}</Bundle-Version>
<Bundle-Activator>com.hello.world.HelloWorldActivator</Bundle-Activator>
<Import-Package>*;resolution:=optional</Import-Package>
</instructions>
</configuration>
</plugin>
</plugins>
</build>
</project>
Объект Java, который я пытаюсь преобразовать в json, представляет собой простой объект, как показано ниже:
package com.hello.world;
public class JsonDataBlob {
private String add1 = "JP Naagar";
private String add2 = "";
private int shippartagent = 1;
public String getAdd1() {
return add1;
}
public void setAdd1(String add1) {
this.add1 = add1;
}
public String getAdd2() {
return add2;
}
public void setAdd2(String add2) {
this.add2 = add2;
}
public int getShippartagent() {
return shippartagent;
}
public void setShippartagent(int shippartagent) {
this.shippartagent = shippartagent;
}
}
Но всякий раз, когда я пытаюсь установить пакет, я получаю следующее исключение, и пакет застревает в состоянии Resolved: -
2016-05-07 15:36:48,986 | WARN | x-6.1-2.0/deploy | fileinstall | 7 - org.apache.felix.fileinstall - 3.5.0 | Error while starting bundle: file:/Users/debraj/Downloads/apache-servicemix-6.1-2.0/deploy/world-0.0.1.jar
org.osgi.framework.BundleException: Activator start error in bundle world [239].
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2196)[org.apache.felix.framework-4.2.1.jar:]
at org.apache.felix.framework.Felix.startBundle(Felix.java:2064)[org.apache.felix.framework-4.2.1.jar:]
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)[org.apache.felix.framework-4.2.1.jar:]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1245)[7:org.apache.felix.fileinstall:3.5.0]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1217)[7:org.apache.felix.fileinstall:3.5.0]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:509)[7:org.apache.felix.fileinstall:3.5.0]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:358)[7:org.apache.felix.fileinstall:3.5.0]
at org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:310)[7:org.apache.felix.fileinstall:3.5.0]
Caused by: java.lang.NoClassDefFoundError: com/fasterxml/jackson/module/afterburner/AfterburnerModule
at java.lang.Class.getDeclaredConstructors0(Native Method)[:1.8.0_77]
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)[:1.8.0_77]
at java.lang.Class.getConstructor0(Class.java:3075)[:1.8.0_77]
at java.lang.Class.newInstance(Class.java:412)[:1.8.0_77]
at org.apache.felix.framework.Felix.createBundleActivator(Felix.java:4336)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2141)
... 7 more
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.module.afterburner.AfterburnerModule not found by world [239]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1532)[org.apache.felix.framework-4.2.1.jar:]
at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)[org.apache.felix.framework-4.2.1.jar:]
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1955)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)[:1.8.0_77]
... 13 more
Все необходимые пакеты Jackson установлены в Karaf:
karaf@root>bundle:list | grep Jackson
123 | Active | 50 | 2.6.2 | Jackson-core
125 | Active | 50 | 2.6.2 | Jackson-annotations
238 | Installed | 80 | 2.7.1 | Jackson-module-Afterburner
karaf@root>bundle:list | grep jackson
124 | Active | 50 | 2.6.2 | jackson-databind
Все работает нормально, если я прокомментирую следующую строку: -
objectMapper.registerModule(new AfterburnerModule());
Может ли кто-нибудь сообщить мне, что я делаю неправильно?
Весь код я разместил в github.
