/**
* 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 org.apache.camel.component.olingo4;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import org.apache.camel.Processor;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.component.olingo4.api.Olingo4ResponseHandler;
import org.apache.camel.component.olingo4.internal.Olingo4ApiName;
import org.apache.camel.util.ObjectHelper;
import org.apache.camel.util.component.AbstractApiConsumer;
import org.apache.camel.util.component.ApiConsumerHelper;
/**
* The Olingo4 consumer.
*/
public class Olingo4Consumer extends AbstractApiConsumer<Olingo4ApiName, Olingo4Configuration> {
public Olingo4Consumer(Olingo4Endpoint endpoint, Processor processor) {
super(endpoint, processor);
}
@Override
protected int poll() throws Exception {
// invoke the consumer method
final Map<String, Object> args = new HashMap<String, Object>();
args.putAll(endpoint.getEndpointProperties());
// let the endpoint and the Consumer intercept properties
endpoint.interceptProperties(args);
interceptProperties(args);
try {
// create responseHandler
final CountDownLatch latch = new CountDownLatch(1);
final Object[] result = new Object[1];
final Exception[] error = new Exception[1];
args.put(Olingo4Endpoint.RESPONSE_HANDLER_PROPERTY, new Olingo4ResponseHandler<Object>() {
@Override
public void onResponse(Object response) {
result[0] = response;
latch.countDown();
}
@Override
public void onException(Exception ex) {
error[0] = ex;
latch.countDown();
}
@Override
public void onCanceled() {
error[0] = new RuntimeCamelException("OData HTTP Request cancelled");
latch.countDown();
}
});
doInvokeMethod(args);
// guaranteed to return, since an exception on timeout is
// expected!!!
latch.await();
if (error[0] != null) {
throw error[0];
}
return ApiConsumerHelper.getResultsProcessed(this, result[0], isSplitResult());
} catch (Throwable t) {
throw ObjectHelper.wrapRuntimeCamelException(t);
}
}
}