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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 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);
}
}
}
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