samples/calculator-osgi/src/main/java/calculator/CalculatorActivator.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 calculator;

import org.apache.tuscany.sca.node.Contribution;
import org.apache.tuscany.sca.node.ContributionLocationHelper;
import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.NodeFactory;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

/**
 * Bundle Activator for Calculator
 *
 */
public class CalculatorActivator implements BundleActivator {
    private Node node;

    public void start(BundleContext context) throws Exception {
        try {
            NodeFactory factory = NodeFactory.newInstance();
            String url = ContributionLocationHelper.getContributionLocation(getClass());
            Contribution contrib = new Contribution("c1", url);
            node = factory.createNode("Calculator.composite", contrib);
            node.start();
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }

    public void stop(BundleContext context) throws Exception {
        if (node != null) {
            node.stop();
            node = null;
        }
    }

}