samples/ds/service-provider/src/main/java/sample/ds/service/provider/HelloServiceImpl.java

/**
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package sample.ds.service.provider;

import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.metatype.annotations.Designate;
import org.osgi.service.metatype.annotations.ObjectClassDefinition;

/**
 * Simple implementation of the hello service..
 */
@Component
@Designate(ocd = SampleConfig.class)
public class HelloServiceImpl implements HelloService {

    private String name;

    public String hello(String message) {
        return String.format("Hello %s my name is %s!", message, name);
    }
    
    @Activate

    public void activate(SampleConfig sampleConfig) {
        this.name = sampleConfig.name();
    }


}

@ObjectClassDefinition(name = "Sample Configuration", pid = "org.apache.karaf.boot.sample.config")
@interface SampleConfig {
    String name() default "default";
    int intProperty() default 0;
    boolean booleanProperty() default false;
}