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-rw-r--r--java/sca/samples/dosgi-calculator/src/main/java/calculator/dosgi/impl/CalculatorServiceImpl.java105
1 files changed, 0 insertions, 105 deletions
diff --git a/java/sca/samples/dosgi-calculator/src/main/java/calculator/dosgi/impl/CalculatorServiceImpl.java b/java/sca/samples/dosgi-calculator/src/main/java/calculator/dosgi/impl/CalculatorServiceImpl.java
deleted file mode 100644
index a9ea37585a..0000000000
--- a/java/sca/samples/dosgi-calculator/src/main/java/calculator/dosgi/impl/CalculatorServiceImpl.java
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * 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.dosgi.impl;
-
-import static org.osgi.framework.Constants.OBJECTCLASS;
-
-import org.osgi.framework.BundleContext;
-import org.osgi.framework.Filter;
-import org.osgi.framework.InvalidSyntaxException;
-import org.osgi.util.tracker.ServiceTracker;
-
-import calculator.dosgi.CalculatorService;
-import calculator.dosgi.operations.AddService;
-import calculator.dosgi.operations.DivideService;
-import calculator.dosgi.operations.MultiplyService;
-import calculator.dosgi.operations.SubtractService;
-
-/**
- * An implementation of the Calculator service.
- */
-public class CalculatorServiceImpl implements CalculatorService {
- private ServiceTracker remoteServices;
- private ServiceTracker localServices;
-
- public CalculatorServiceImpl() {
- super();
- }
-
- public CalculatorServiceImpl(BundleContext context) {
- super();
- Filter remoteFilter = null, localFilter = null;
- try {
- remoteFilter =
- context.createFilter("(&(" + OBJECTCLASS + "=calculator.dosgi.operations.*) (service.imported=*))");
- localFilter =
- context.createFilter("(&(" + OBJECTCLASS + "=calculator.dosgi.operations.*) (!(service.imported=*)))");
- } catch (InvalidSyntaxException e) {
- e.printStackTrace();
- }
- this.remoteServices = new ServiceTracker(context, remoteFilter, null);
- remoteServices.open();
- this.localServices = new ServiceTracker(context, localFilter, null);
- localServices.open();
- }
-
- private <T> T getService(Class<T> cls) {
- try {
- // Wait for 10 seconds until the remote services are imported
- remoteServices.waitForService(10000);
- } catch (InterruptedException e) {
- throw new IllegalStateException(cls.getSimpleName() + " is not available");
- }
- Object[] remoteObjects = remoteServices.getServices();
- if (remoteObjects != null) {
- for (Object s : remoteObjects) {
- if (cls.isInstance(s)) {
- System.out.println("Remote service: " + s);
- return cls.cast(s);
- }
- }
- }
- Object[] localObjects = localServices.getServices();
- if (localObjects != null) {
- for (Object s : localObjects) {
- if (cls.isInstance(s)) {
- System.out.println("Local service: " + s);
- return cls.cast(s);
- }
- }
- }
- throw new IllegalStateException(cls.getSimpleName() + " is not available");
- }
-
- public double add(double n1, double n2) {
- return getService(AddService.class).add(n1, n2);
- }
-
- public double subtract(double n1, double n2) {
- return getService(SubtractService.class).subtract(n1, n2);
- }
-
- public double multiply(double n1, double n2) {
- return getService(MultiplyService.class).multiply(n1, n2);
- }
-
- public double divide(double n1, double n2) {
- return getService(DivideService.class).divide(n1, n2);
- }
-}