/* * 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 com.tuscanyscatours.currencyconverter.servlet; import java.io.IOException; import java.io.Writer; import javax.servlet.ServletConfig; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.osoa.sca.ComponentContext; import org.osoa.sca.annotations.Reference; import com.tuscanyscatours.currencyconverter.CurrencyConverter; public class CurrencyConverterServlet extends HttpServlet { @Reference protected CurrencyConverter currencyConverter; @Override public void init(ServletConfig config) { if (currencyConverter == null) { // The Currency Converter reference will only be injected from the @Reference // annotation in containers supporting SCA "deep" integration. In other // environments in can be looked up from the ComponentContext. ComponentContext context = (ComponentContext)config.getServletContext().getAttribute("org.osoa.sca.ComponentContext"); currencyConverter = context.getService(CurrencyConverter.class, "currencyConverter"); } } @Override protected void service(HttpServletRequest request, HttpServletResponse response) throws IOException { Writer out = response.getWriter(); out.write("

SCA Tours Currency Converter Servlet

"); out.write("Welcome to the SCA Tours Currency Converter Servlet

"); out.write("

"); out.write("Enter value in US Dollars"); out.write("

"); out.write(""); out.write("

"); String dollarsStr = request.getParameter("dollars"); if (dollarsStr != null) { double dollars = Double.parseDouble(dollarsStr); double converted = currencyConverter.convert("USD", "GBP", dollars); out.write(dollars + " US Dollars = " + converted + " GB Pounds"); } out.write(""); out.write(""); out.flush(); out.close(); } }