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/*
* 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 launcher;
import org.apache.tuscany.sca.node.Contribution;
import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.NodeFactory;
import calculator.CalculatorService;
/**
* This program shows how to create an embedded SCA runtime, load a contribution,
* start it and locate and invoke an SCA component from Java.
*/
public class LaunchCalculatorContribution {
/*
* Use the Tuscany Node API to:
* - create a Node instance and load a contribution from the parent directory
* - start the node (which starts deployable composites)
* - get a local service proxy
* - make a service call using the proxy
* - stop the node
*/
public static void main(String[] args) throws Exception {
Node node = NodeFactory.newInstance().createNode(new Contribution("c1", "../calculator-contribution.jar"));
node.start();
CalculatorService calculator = node.getService(CalculatorService.class, "CalculatorServiceComponent");
double result = calculator.add(3, 2);
System.out.println("3 + 2 = " + result);
if (result != 5.0){
throw new RuntimeException("Expected 5.0 but result was " + result);
}
node.stop();
}
}
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