/* * Copyright 2001-2004 The Apache Software Foundation. * * Licensed 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 samples.stock ; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import java.net.URL; /** * See \samples\stock\readme for info. * * @author Sanjiva Weerawarana (sanjiva@watson.ibm.com) * @author Doug Davis (dug@us.ibm.com) */ public class StockQuoteService { public String test() { return( "Just a test" ); } public float getQuote (String symbol) throws Exception { // get a real (delayed by 20min) stockquote from // http://services.xmethods.net/axis/. The IP addr // below came from the host that the above form posts to .. if ( symbol.equals("XXX") ) return( (float) 55.25 ); URL url = new URL( "http://services.xmethods.net/axis/getQuote?s=" + symbol ); DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); Document doc = db.parse( url.toExternalForm() ); Element elem = doc.getDocumentElement(); NodeList list = elem.getElementsByTagName( "stock_quote" ); if ( list != null && list.getLength() != 0 ) { elem = (Element) list.item(0); list = elem.getElementsByTagName( "price" ); elem = (Element) list.item(0); String quoteStr = elem.getAttribute("value"); try { return Float.valueOf(quoteStr).floatValue(); } catch (NumberFormatException e1) { // maybe its an int? try { return Integer.valueOf(quoteStr).intValue() * 1.0F; } catch (NumberFormatException e2) { return -1.0F; } } } return( 0 ); } }