Merge branch 'master' of https://github.com/JonCook/tutorials

osgi/osgi-intro-sample-client/pom.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         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>
+    <!-- mvn:com.baeldung/osgi-intro-sample-client/1.0-SNAPSHOT -->
+    <artifactId>osgi-intro-sample-client</artifactId>
+    <name>osgi-intro-sample-client</name>
+    <packaging>bundle</packaging>
+
+    <parent>
+        <artifactId>osgi</artifactId>
+        <groupId>com.baeldung</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.baeldung</groupId>
+            <artifactId>osgi-intro-sample-service</artifactId>
+            <version>${osgi-intro-sample-service.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.osgi</groupId>
+            <artifactId>org.osgi.core</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
+                <artifactId>maven-bundle-plugin</artifactId>
+                <configuration>
+                    <instructions>
+                        <Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
+                        <Bundle-Name>${project.artifactId}</Bundle-Name>
+                        <Bundle-Version>${project.version}</Bundle-Version>
+                        <Bundle-Activator>com.baeldung.osgi.sample.client.Client</Bundle-Activator>
+
+                        <Private-Package>com.baeldung.osgi.sample.client</Private-Package>
+
+                    </instructions>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <osgi-intro-sample-service.version>1.0-SNAPSHOT</osgi-intro-sample-service.version>
+    </properties>
+</project>

osgi/osgi-intro-sample-client/src/main/java/com/baeldung/osgi/sample/client/Client.java

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+package com.baeldung.osgi.sample.client;
+
+import com.baeldung.osgi.sample.service.definition.Greeter;
+import org.osgi.framework.*;
+
+public class Client implements BundleActivator, ServiceListener {
+
+    private BundleContext ctx;
+    private ServiceReference serviceReference;
+
+    public void start(BundleContext ctx) {
+        this.ctx = ctx;
+        try {
+            ctx.addServiceListener(this, "(objectclass=" + Greeter.class.getName() + ")");
+        } catch (InvalidSyntaxException ise) {
+            ise.printStackTrace();
+        }
+    }
+
+    public void stop(BundleContext bundleContext) {
+        if (serviceReference != null) {
+            ctx.ungetService(serviceReference);
+        }
+        this.ctx = null;
+    }
+
+    public void serviceChanged(ServiceEvent serviceEvent) {
+        int type = serviceEvent.getType();
+        switch (type) {
+        case (ServiceEvent.REGISTERED):
+            System.out.println("Notification of service registered.");
+            serviceReference = serviceEvent.getServiceReference();
+            Greeter service = (Greeter) (ctx.getService(serviceReference));
+            System.out.println(service.sayHiTo("John"));
+            break;
+        case (ServiceEvent.UNREGISTERING):
+            System.out.println("Notification of service unregistered.");
+            ctx.ungetService(serviceEvent.getServiceReference());
+            break;
+        default:
+            break;
+        }
+    }
+}

osgi/osgi-intro-sample-client/src/main/resources/logback.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>