modules/samples/databinding/client/src/samples/databinding/StockClient.java

/*
 * Copyright 2004,2005 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.databinding;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.impl.builder.SAXOMBuilder;
import org.exolab.castor.xml.Marshaller;
import org.exolab.castor.xml.UnmarshalHandler;
import org.exolab.castor.xml.Unmarshaller;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import samples.databinding.data.GetStockQuote;
import samples.databinding.data.GetStockQuoteResponse;

import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.sax.SAXResult;

import javanet.staxutils.StAXSource;
public final class StockClient {
    public static void main(String[] args) throws Exception {
        if (args.length != 2) {
            System.err.println("Usage: StockClient <url> <symbol>");
            return;
        }
        final String url = args[0];
        final String symbol = args[1];

        System.out.println();
        System.out.println("Getting Stock Quote for " + symbol);

        StockQuoteServiceStub stub =
                new StockQuoteServiceStub(url);
        stub._getServiceClient().getOptions().setAction("getStockQuote");
        GetStockQuote stockQuote = new GetStockQuote();
        stockQuote.setSymbol(symbol);
        SAXOMBuilder builder = new SAXOMBuilder();
        Marshaller.marshal(stockQuote, builder);
        OMElement response = stub.getStockQuote(
                builder.getRootElement());


        StAXSource staxSource =
                new StAXSource(response.getXMLStreamReader());
        Unmarshaller unmarshaller = new Unmarshaller(GetStockQuoteResponse.class);
        UnmarshalHandler unmarshalHandler = unmarshaller.createHandler();
        GetStockQuoteResponse stockQuoteResponse;
        try {
            ContentHandler contentHandler = Unmarshaller.getContentHandler(unmarshalHandler);
            TransformerFactory.newInstance().newTransformer().transform(staxSource, new SAXResult(contentHandler));
            stockQuoteResponse = (GetStockQuoteResponse) unmarshalHandler.getObject();
        } catch (SAXException e) {
            throw new RuntimeException(e);
        } catch (TransformerException e) {
            throw new RuntimeException(e);
        }
        System.out.println("Price = " + stockQuoteResponse.getQuote().getLastTrade().getPrice());
    }
}