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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 stockquote;
+
+import java.util.Dictionary;
+import java.util.Hashtable;
+
+import org.osgi.framework.BundleActivator;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.cm.Configuration;
+import org.osgi.service.cm.ConfigurationAdmin;
+import org.osoa.sca.annotations.Property;
+
+/**
+ *
+ * Stock quote with configurable properties.
+ *
+ */
+public class OSGiStockQuoteImpl implements StockQuote, BundleActivator {
+
+ public String pid;
+
+ @Property
+ public double exchangeRate;
+
+ private String currency;
+
+ private BundleContext bundleContext;
+
+ public OSGiStockQuoteImpl() {
+ this.pid = "stockQuote";
+ }
+
+ protected OSGiStockQuoteImpl(BundleContext bc) {
+ this.bundleContext = bc;
+ }
+
+ @Property
+ public void setCurrency(String currency) {
+ this.currency = currency;
+ }
+
+
+ private void checkProperties() throws Exception {
+
+ if (exchangeRate == 2.0 && !"USD".equals(currency)) {
+ throw new RuntimeException("Property exchangeRate not set correctly, exchangeRate= " +
+ exchangeRate + " currency=" + currency);
+ }
+
+ if (exchangeRate == 1.48 && !"EURO".equals(currency)) {
+ throw new RuntimeException("Property exchangeRate not set correctly, exchangeRate= " +
+ exchangeRate + " currency=" + currency);
+ }
+
+ ServiceReference configAdminReference = bundleContext.getServiceReference("org.osgi.service.cm.ConfigurationAdmin");
+ if (configAdminReference != null && pid != null ) {
+
+ ConfigurationAdmin cm = (ConfigurationAdmin)bundleContext.getService(configAdminReference);
+
+ Configuration config = cm.getConfiguration("stockQuote", null);
+
+ Dictionary props = config.getProperties();
+
+ if (exchangeRate != (double)(Double)props.get("exchangeRate")) {
+ throw new Exception("Config Property exchangeRate not set correctly, expected "
+ + props.get("exchangeRate") + " got " + exchangeRate);
+ }
+
+ if (!currency.equals(props.get("currency"))) {
+ throw new Exception("Config Property currency not set correctly, expected "
+ + props.get("currency") + " got " + currency);
+ }
+ }
+
+ }
+
+ public double getQuote(String ticker) throws Exception {
+
+ checkProperties();
+
+ return 52.81 * exchangeRate;
+
+ }
+
+ public void start(BundleContext bc) throws Exception {
+
+ bundleContext = bc;
+
+ Hashtable<String, Object> props = new Hashtable<String, Object>();
+ props.put("service.pid", "stockQuote");
+
+ bc.registerService(StockQuote.class.getName(), this, props);
+
+ }
+
+ public void stop(BundleContext bc) throws Exception {
+ }
+
+
+}