1 files changed, 54 insertions, 0 deletions
diff --git a/sca-java-1.x/trunk/tutorials/travelsample/contrib/shared-contributions/currency-contribution/src/main/java/scatours/currencyconverter/CurrencyConverterImpl.java b/sca-java-1.x/trunk/tutorials/travelsample/contrib/shared-contributions/currency-contribution/src/main/java/scatours/currencyconverter/CurrencyConverterImpl.java
new file mode 100644
index 0000000000..eddc59f555
--- /dev/null
+++ b/sca-java-1.x/trunk/tutorials/travelsample/contrib/shared-contributions/currency-contribution/src/main/java/scatours/currencyconverter/CurrencyConverterImpl.java
@@ -0,0 +1,54 @@
+/*
+ * 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 scatours.currencyconverter;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.osoa.sca.annotations.Service;
+
+/**
+ * An implementation of the CurrencyConverter service
+ */
+@Service(interfaces={CurrencyConverter.class})
+public class CurrencyConverterImpl implements CurrencyConverter {
+    
+    // currency index
+    private Map<String, Integer> currencyIndex = new HashMap<String, Integer>();
+    
+    // exchange rates
+    private final double rates [][] = {{ 1.00, 0.50, 0.66 },
+                                       { 2.00, 1.00, 1.33 },
+                                       { 1.50, 0.75, 1.00 } } ;  
+    
+    public CurrencyConverterImpl(){
+        currencyIndex.put("USD", new Integer(0));
+        currencyIndex.put("GBP", new Integer(1));
+        currencyIndex.put("EUR", new Integer(2));
+    }
+
+    public double getExchangeRate(String fromCurrencyCode, String toCurrencyCode){
+        return rates[currencyIndex.get(fromCurrencyCode).intValue()]
+                    [currencyIndex.get(toCurrencyCode).intValue()];
+    } 
+
+    public double convert(String fromCurrencyCode, String toCurrencyCode, double amount){
+        return amount * getExchangeRate(fromCurrencyCode, toCurrencyCode);
+    }
+}