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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 stock;
import java.util.concurrent.ExecutionException;
import javax.xml.ws.AsyncHandler;
import javax.xml.ws.Response;
import org.oasisopen.sca.annotation.Reference;
public class StockQuoteClient {
@Reference public StockQuoteRef stockQuote;
public float getPrice(String ticker) {
return stockQuote.getPrice(ticker);
}
public float getPriceAsyncPoll(String ticker) throws InterruptedException, ExecutionException {
Response<Float> response = stockQuote.getPriceAsync("foo");
return response.get();
}
float price = 0f;
Object mutex = new Object();
Exception exception;
public float getPriceAsyncCallback(String ticker) throws Exception {
AsyncHandler<Float> callback = new AsyncHandler<Float>() {
public void handleResponse(Response<Float> arg) {
synchronized (mutex) {
try {
price = arg.get();
} catch (Exception e) {
exception = e;
}
mutex.notify();
}
}
};
stockQuote.getPriceAsync("foo", callback);
synchronized (mutex) {
if (price == 0f)
mutex.wait(5000); // wait for up to 5 seconds
}
if (exception != null) throw exception;
return price;
}
}
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