| /* |
| * 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 bigbank; |
| |
| import java.io.StringReader; |
| |
| import javax.xml.stream.XMLInputFactory; |
| import javax.xml.stream.XMLStreamReader; |
| |
| import org.apache.axiom.om.OMElement; |
| import org.apache.log4j.Level; |
| import org.apache.log4j.LogManager; |
| import org.apache.log4j.spi.LoggerRepository; |
| import org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker; |
| import org.osoa.sca.ServiceRuntimeException; |
| import org.osoa.sca.annotations.Property; |
| import org.osoa.sca.annotations.Reference; |
| import org.osoa.sca.annotations.Service; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| @Service(AccountService.class) |
| public class AccountServiceImpl implements AccountService { |
| private static final String STOCK_QUOTE_REQUEST = |
| "<q:symbol xmlns:q=\"http://www.webserviceX.NET/\">IBM</q:symbol>"; |
| |
| private XMLInputFactory factory = XMLInputFactory.newInstance(); |
| |
| @Reference |
| protected ExchangeRate exchangeRate; |
| |
| @Reference |
| protected StockQuote stockQuote; |
| |
| @Reference |
| protected AccountData accountData; |
| |
| @Reference |
| protected StockValue stockValue; |
| |
| @Property |
| protected String currency; |
| |
| public double getTotalValue() { |
| try { |
| double rate = exchangeRate.getExchangeRate(currency); |
| |
| System.out.println("Loading account data..."); |
| XMLStreamReader accounts = accountData.getAccounts(); |
| |
| System.out.println("Getting stock quote..."); |
| XMLStreamReader request = factory.createXMLStreamReader(new StringReader(STOCK_QUOTE_REQUEST)); |
| |
| // temporarily disable INFO logging before calling the web service |
| LoggerRepository repository = LogManager.getLoggerRepository(); |
| Level threshold = repository.getThreshold(); |
| repository.setThreshold(Level.WARN); |
| |
| // first try to get a live stock quote from the web service |
| String xml = null; |
| try { |
| // set a small timeout value in case the server doesn't respond |
| Axis2BindingInvoker.GLOBAL_AXIS_TIMEOUT = 8000L; |
| |
| OMElement quotes = stockQuote.GetQuote(request); |
| xml = quotes.getText(); |
| if (!xml.startsWith("<")) { |
| System.out.println("Server responded: " + xml); |
| throw new IllegalStateException("Unexpected response from server"); |
| } |
| } catch (ServiceRuntimeException e) { |
| // server isn't available, use local historical data |
| |
| // restore the previous logging setting |
| } finally { |
| repository.setThreshold(threshold); |
| } |
| |
| // if the web service invocation was successful, process the response |
| XMLStreamReader qts = null; |
| if (xml != null) { |
| System.out.println("Server responded: " + xml); |
| qts = factory.createXMLStreamReader(new StringReader(xml)); |
| |
| // if the web service isn't responding, continue with the demo using historical data |
| } else { |
| System.out.println("Stock price live quote not available, using historical data"); |
| qts = factory.createXMLStreamReader(new StringReader( |
| "<StockQuotes>"+ |
| "<Stock>"+ |
| "<Symbol>IBM</Symbol>"+ |
| "<Last>134.11</Last>"+ |
| "<Date>9/24/2010</Date>"+ |
| "<Time>4:00pm</Time>"+ |
| "<Change>+2.44</Change>"+ |
| "<Open>132.42</Open>"+ |
| "<High>134.15</High>"+ |
| "<Low>132.34</Low>"+ |
| "<Volume>7122325</Volume>"+ |
| "<MktCap>169.1B</MktCap>"+ |
| "<PreviousClose>131.67</PreviousClose>"+ |
| "<PercentageChange>+1.85%</PercentageChange>"+ |
| "<AnnRange>116.00 - 134.25</AnnRange>"+ |
| "<Earns>10.582</Earns>"+ |
| "<P-E>12.44</P-E>"+ |
| "<Name>International Bus</Name>"+ |
| "</Stock>"+ |
| "</StockQuotes>")); |
| } |
| |
| System.out.println("Calculating total value..."); |
| double value = stockValue.calculate(qts, accounts); |
| |
| System.out.println("Total Value=USD " + value); |
| |
| return value * rate; |
| } catch (Exception e) { |
| throw new ServiceRuntimeException(e); |
| } |
| } |
| |
| } |