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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta4-RC1/samples/learning-more/distributed-osgi-dynamic/calculator-bundle/src/main/java/calculator/dosgi/impl/CalculatorServiceDSImpl.java | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta4-RC1/samples/learning-more/distributed-osgi-dynamic/calculator-bundle/src/main/java/calculator/dosgi/impl/CalculatorServiceDSImpl.java b/sca-java-2.x/tags/2.0-Beta4-RC1/samples/learning-more/distributed-osgi-dynamic/calculator-bundle/src/main/java/calculator/dosgi/impl/CalculatorServiceDSImpl.java new file mode 100644 index 0000000000..9c80c5beb9 --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta4-RC1/samples/learning-more/distributed-osgi-dynamic/calculator-bundle/src/main/java/calculator/dosgi/impl/CalculatorServiceDSImpl.java @@ -0,0 +1,114 @@ +/*
+ * 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 org.osgi.service.component.ComponentContext;
+
+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 CalculatorServiceDSImpl implements CalculatorService {
+ private AddService addService;
+ private SubtractService subtractService;
+ private MultiplyService multiplyService;
+ private DivideService divideService;
+
+ public CalculatorServiceDSImpl() {
+ super();
+ System.out.println("CalculatorServiceDSImpl()");
+ }
+
+ protected void activate(ComponentContext context) {
+ System.out.println("Activating " + context);
+ }
+
+ protected void deactivate(ComponentContext context) {
+ System.out.println("Deactivating " + context);
+ }
+
+ /*
+ * The following setters can be used for DS injection
+ */
+ public void setAddService(AddService addService) {
+ System.out.println("setAddService()");
+ this.addService = addService;
+ }
+
+ public void setSubtractService(SubtractService subtractService) {
+ this.subtractService = subtractService;
+ }
+
+ public void setDivideService(DivideService divideService) {
+ this.divideService = divideService;
+ }
+
+ public void setMultiplyService(MultiplyService multiplyService) {
+ this.multiplyService = multiplyService;
+ }
+
+ /*
+ * The following setters can be used for DS injection
+ */
+ public void unsetAddService(AddService addService) {
+ System.out.println("unsetAddService()");
+ this.addService = null;
+ }
+
+ public void unsetSubtractService(SubtractService subtractService) {
+ this.subtractService = null;
+ }
+
+ public void unsetDivideService(DivideService divideService) {
+ this.divideService = null;
+ }
+
+ public void unsetMultiplyService(MultiplyService multiplyService) {
+ this.multiplyService = null;
+ }
+ private <T> T getService(Class<T> cls) {
+ for (Object s : new Object[] {addService, subtractService, multiplyService, divideService}) {
+ if (cls.isInstance(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);
+ }
+}
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