Aquí hay un ejemplo que usa ComponentFactory que debe ajustarse a sus necesidades (y contiene una prueba de integración simple para ayudar con su other question). Renuncia; el código no está bien escrito, solo por el bien del ejemplo.
Algunas interfaces de servicio:
package net.earcam.example.servicecomponent;
public interface EchoService {
String REPEAT_PARAMETER = "repeat";
String FACTORY_DS = "echo.factory";
String NAME_DS = "echo";
String echo(String message);
}
Y:
package net.earcam.example.servicecomponent;
public interface SequenceService {
long next();
}
Entonces las implementaciones:
import static net.earcam.example.servicecomponent.EchoService.FACTORY_DS;
import static net.earcam.example.servicecomponent.EchoService.NAME_DS;
import static org.apache.felix.scr.annotations.ReferenceCardinality.MANDATORY_UNARY;
import static org.apache.felix.scr.annotations.ReferencePolicy.DYNAMIC;
import net.earcam.example.servicecomponent.EchoService;
import net.earcam.example.servicecomponent.SequenceService;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.osgi.service.component.ComponentContext;
@Component(factory = FACTORY_DS, name = NAME_DS)
public class EchoServiceImp implements EchoService {
@Reference(cardinality = MANDATORY_UNARY, policy = DYNAMIC)
private SequenceService sequencer = null;
private transient int repeat = 1;
@Activate
protected void activate(final ComponentContext componentContext)
{
repeat = Integer.parseInt(componentContext.getProperties().get(REPEAT_PARAMETER).toString());
}
@Override
public String echo(final String message)
{
StringBuilder stringBuilder = new StringBuilder();
for(int i = 0; i < repeat; i++) {
addEchoElement(stringBuilder, message);
}
return stringBuilder.toString();
}
private void addEchoElement(final StringBuilder stringBuilder, final String message) {
stringBuilder.append(sequencer.next()).append(' ').append(message).append("\n");
}
protected void unbindSequencer()
{
sequencer = null;
}
protected void bindSequencer(final SequenceService sequencer)
{
this.sequencer = sequencer;
}
}
Y
:
package net.earcam.example.servicecomponent.internal;
import java.util.concurrent.atomic.AtomicLong;
import net.earcam.example.servicecomponent.SequenceService;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Service;
/**
* @author caspar
*/
@Component
@Service
public class SequenceServiceImp implements SequenceService {
private AtomicLong sequence;
@Override
public long next()
{
return sequence.incrementAndGet();
}
@Activate
protected void activate()
{
sequence = new AtomicLong();
}
@Deactivate
protected void deactivate()
{
sequence = null;
}
}
Una prueba de integración que lo maneja todo (nota; hay un método principal para que lo ejecutes mientras comienzas/detengas paquetes, etc.).
package net.earcam.example.servicecomponent.test;
import static org.ops4j.pax.exam.CoreOptions.*;
import static org.ops4j.pax.exam.OptionUtils.combine;
import static org.ops4j.pax.exam.spi.container.PaxExamRuntime.createContainer;
import static org.ops4j.pax.exam.spi.container.PaxExamRuntime.createTestSystem;
import java.io.File;
import java.io.FileFilter;
import java.io.FileNotFoundException;
import java.util.Dictionary;
import java.util.Hashtable;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import net.earcam.example.servicecomponent.EchoService;
import net.earcam.example.servicecomponent.SequenceService;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.Option;
import org.ops4j.pax.exam.junit.Configuration;
import org.ops4j.pax.exam.junit.ExamReactorStrategy;
import org.ops4j.pax.exam.junit.JUnit4TestRunner;
import org.ops4j.pax.exam.spi.reactors.EagerSingleStagedReactorFactory;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.component.ComponentFactory;
import org.osgi.service.component.ComponentInstance;
@ExamReactorStrategy(EagerSingleStagedReactorFactory.class)
@RunWith(JUnit4TestRunner.class)
public class EchoServiceIntegrationTest {
public static void main(String[] args) {
try {
createContainer(
createTestSystem(
combine(
new EchoServiceIntegrationTest().config(),
profile("gogo"))
)).start();
} catch(Throwable t) {
t.printStackTrace();
}
}
@Configuration
public Option[] config()
{
return options(
felix(),
equinox(),
junitBundles(),
systemProperty("org.ops4j.pax.logging.DefaultServiceLog.level").value("TRACE"),
mavenBundle().groupId("org.apache.felix").artifactId("org.apache.felix.scr").versionAsInProject(),
bundle("file:" + findFileInCurrentDirectoryAndBelow(
Pattern.compile("net\\.earcam\\.example\\.servicecomponent\\-[\\.\\d]+(\\-SNAPSHOT)?\\.[wj]ar")))
);
}
@Test
public void bundleContextIsAvailable(BundleContext context)
{
Assert.assertNotNull("PAX Exam BundleContext available", context);
}
@Test
public void sequenceServiceIsAvailable(BundleContext context)
{
Assert.assertNotNull("SequenceService available", fetchService(context, SequenceService.class));
}
@Test
public void serviceResponseContainsThreeEchos(BundleContext context) throws Exception
{
final String message = "message";
final String expected = "1 " + message + "\n2 " + message + "\n3 " + message + "\n";
ComponentFactory factory = fetchComponentFactory(context, EchoService.FACTORY_DS);
Dictionary<String, String> properties = new Hashtable<String, String>();
properties.put(EchoService.REPEAT_PARAMETER, "3");
ComponentInstance instance = factory.newInstance(properties);
EchoService service = (EchoService) instance.getInstance();
String actual = service.echo(message);
Assert.assertEquals("Expected response", expected, actual);
}
private ComponentFactory fetchComponentFactory(BundleContext context, String componentFactoryId) throws Exception
{
String filter = "(component.factory=" + componentFactoryId + ")";
ServiceReference[] references = context.getServiceReferences(ComponentFactory.class.getCanonicalName(), filter);
return (references.length) == 0 ? null : (ComponentFactory) context.getService(references[0]);
}
private <T> T fetchService(BundleContext context, Class<T> clazz)
{
ServiceReference reference = context.getServiceReference(clazz.getCanonicalName());
@SuppressWarnings("unchecked")
T service = (T) context.getService(reference);
return service;
}
private String findFileInCurrentDirectoryAndBelow(final Pattern filePattern) {
FileFilter filter = new FileFilter() {
@Override
public boolean accept(File pathname) {
Matcher matcher = filePattern.matcher(pathname.getName());
return (matcher.matches());
}
};
return findFile(new File("."), filter, filePattern);
}
private String findFile(File directory, FileFilter filter, Pattern filePattern) {
File[] matches = directory.listFiles(filter);
if(matches != null && matches.length > 0) {
return matches[0].getAbsolutePath();
}
File[] subdirs = directory.listFiles(new FileFilter() {
@Override
public boolean accept(File pathname) {
return pathname.isDirectory();
}
});
for(final File subdir : subdirs) {
String found = findFile(subdir, filter, filePattern);
if(!"".equals(found)) {
return found;
}
}
throw new RuntimeException(new FileNotFoundException("No match for pattern: " + filePattern.pattern()));
}
}
Y aquí está el POM Maven:
<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>net.earcam</groupId>
<artifactId>net.earcam.example.servicecomponent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<version.java.source>1.6</version.java.source>
<version.java.target>1.6</version.java.target>
<version.osgi>4.2.0</version.osgi>
<version.paxexam>2.1.0</version.paxexam>
<version.paxrunner>1.7.4</version.paxrunner>
<version.cometd>2.3.1</version.cometd>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.core</artifactId>
<version>${version.osgi}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.compendium</artifactId>
<version>${version.osgi}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.scr.annotations</artifactId>
<version>1.4.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>1.3.RC2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jmock</groupId>
<artifactId>jmock-junit4</artifactId>
<version>2.5.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.6.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-junit4</artifactId>
<version>${version.paxexam}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-container-paxrunner</artifactId>
<version>${version.paxexam}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-link-assembly</artifactId>
<version>${version.paxexam}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-testforge</artifactId>
<version>${version.paxexam}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.ops4j.pax.runner</groupId>
<artifactId>pax-runner-no-jcl</artifactId>
<version>${version.paxrunner}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.scr</artifactId>
<version>1.6.0</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>${version.java.source}</source>
<target>${version.java.target}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<plugin>
<!-- Unit Tests -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.8.1</version>
<executions>
<execution>
<goals>
<goal>test</goal>
</goals>
</execution>
</executions>
<configuration>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<!-- Integration Tests -->
<groupId>org.codehaus.mojo</groupId>
<artifactId>failsafe-maven-plugin</artifactId>
<version>2.4.3-alpha-1</version>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
<phase>integration-test</phase>
</execution>
</executions>
<configuration>
<includes>
<include>**/*IntegrationTest.java</include>
</includes>
</configuration>
</plugin>
<plugin>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>maven-paxexam-plugin</artifactId>
<version>1.2.3</version>
<executions>
<execution>
<id>generate-config</id>
<goals>
<goal>generate-depends-file</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<!-- Process the DS annotations -->
<groupId>org.apache.felix</groupId>
<artifactId>maven-scr-plugin</artifactId>
<version>1.6.0</version>
<executions>
<execution>
<id>generate-scr-descriptor</id>
<goals>
<goal>scr</goal>
</goals>
<phase>process-classes</phase>
<configuration>
<strictMode>true</strictMode>
<outputDirectory>${project.build.outputDirectory}/</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<!-- Generate OSGi bundle MAINFEST.MF entries -->
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>2.3.4</version>
<extensions>true</extensions>
<configuration>
<supportedProjectTypes>
<supportedProjectType>jar</supportedProjectType>
</supportedProjectTypes>
<instructions>
<Bundle-Vendor>earcam</Bundle-Vendor>
<Service-Component>OSGI-INF/serviceComponents.xml</Service-Component>
<!-- PAX mangles this, it uses the name of the project for the symbolicname
of test bundle? <Bundle-SymbolicName>${project.name}</Bundle-SymbolicName> -->
<Bundle-SymbolicName>${project.artifactId}</Bundle-SymbolicName>
<Bundle-Version>${project.version}</Bundle-Version>
<Export-Package>!${project.artifactId}.internal,${project.artifactId}.*</Export-Package>
<Import-Package>*</Import-Package>
</instructions>
</configuration>
<executions>
<execution>
<id>bundle-manifest</id>
<phase>process-classes</phase>
<goals>
<goal>manifest</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<archive>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
Un par de cosas a tener en cuenta; Me gustan mis pruebas de integración dentro del módulo que prueban, de esa manera mvn clean install deploy falla si mi prueba de integración lo hace, pero es común ver proyectos con un solo módulo de integración para todas las pruebas de integración. Esto explica el feo método findFileInCurrentDirectoryAndBelow(Pattern pattern)
que se utiliza para localizar el paquete del módulo actual en el directorio de destino, y también explica la configuración no estándar de los plugins maven-bundle-plugin y maven-scr-plugin.
También la forma en que Pax-Exam recoge las dependencias requiere que ejecute la construcción maven para cada cambio en dependencias y configuraciones (por ejemplo, paquetes de importaciones/exportaciones, cambios de DS). Pero una vez hecho esto, puede ejecutar/depurar las pruebas de Eclipse.
He puesto el proyecto en un archivo comprimido here
HTH =)
el paquete que contiene su servicio no debe tener el archivo ServiceB.class. Si lo hace, usaría ServiceB diferente para un paquete diferente, eso está mal. –
Creo que has entendido mal. Si especifica el atributo servicefactory, DS creará una nueva instancia para cada paquete. Puede obtener el paquete que le asignaron desde ComponentContext. –