/**
* 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.cxf.wsn.client;
import javax.jws.WebParam;
import javax.jws.WebService;
import javax.xml.bind.JAXBElement;
import javax.xml.namespace.QName;
import javax.xml.ws.Endpoint;
import javax.xml.ws.wsaddressing.W3CEndpointReference;
import org.apache.cxf.wsn.util.IdGenerator;
import org.oasis_open.docs.wsn.b_2.GetCurrentMessage;
import org.oasis_open.docs.wsn.b_2.GetCurrentMessageResponse;
import org.oasis_open.docs.wsn.b_2.InvalidFilterFaultType;
import org.oasis_open.docs.wsn.b_2.InvalidTopicExpressionFaultType;
import org.oasis_open.docs.wsn.b_2.NoCurrentMessageOnTopicFaultType;
import org.oasis_open.docs.wsn.b_2.Renew;
import org.oasis_open.docs.wsn.b_2.RenewResponse;
import org.oasis_open.docs.wsn.b_2.Subscribe;
import org.oasis_open.docs.wsn.b_2.SubscribeResponse;
import org.oasis_open.docs.wsn.b_2.TopicExpressionType;
import org.oasis_open.docs.wsn.b_2.Unsubscribe;
import org.oasis_open.docs.wsn.b_2.UnsubscribeResponse;
import org.oasis_open.docs.wsn.bw_2.InvalidFilterFault;
import org.oasis_open.docs.wsn.bw_2.InvalidMessageContentExpressionFault;
import org.oasis_open.docs.wsn.bw_2.InvalidProducerPropertiesExpressionFault;
import org.oasis_open.docs.wsn.bw_2.InvalidTopicExpressionFault;
import org.oasis_open.docs.wsn.bw_2.MultipleTopicsSpecifiedFault;
import org.oasis_open.docs.wsn.bw_2.NoCurrentMessageOnTopicFault;
import org.oasis_open.docs.wsn.bw_2.NotificationProducer;
import org.oasis_open.docs.wsn.bw_2.NotifyMessageNotSupportedFault;
import org.oasis_open.docs.wsn.bw_2.SubscribeCreationFailedFault;
import org.oasis_open.docs.wsn.bw_2.SubscriptionManager;
import org.oasis_open.docs.wsn.bw_2.TopicExpressionDialectUnknownFault;
import org.oasis_open.docs.wsn.bw_2.TopicNotSupportedFault;
import org.oasis_open.docs.wsn.bw_2.UnableToDestroySubscriptionFault;
import org.oasis_open.docs.wsn.bw_2.UnacceptableInitialTerminationTimeFault;
import org.oasis_open.docs.wsn.bw_2.UnacceptableTerminationTimeFault;
import org.oasis_open.docs.wsn.bw_2.UnrecognizedPolicyRequestFault;
import org.oasis_open.docs.wsn.bw_2.UnsupportedPolicyRequestFault;
import org.oasis_open.docs.wsrf.rw_2.ResourceUnknownFault;
/**
* Demand-based publisher.
*
*/
@WebService(endpointInterface = "org.oasis_open.docs.wsn.bw_2.NotificationProducer")
public class Publisher implements NotificationProducer, Referencable {
public static final String WSN_URI = "http://docs.oasis-open.org/wsn/b-2";
public static final QName QNAME_TOPIC_EXPRESSION = new QName(WSN_URI, "TopicExpression");
public interface Callback {
void subscribe(TopicExpressionType topic);
void unsubscribe(TopicExpressionType topic);
}
private final Callback callback;
private final String address;
private final Endpoint endpoint;
private final IdGenerator idGenerator = new IdGenerator();
public Publisher(Callback callback, String address) {
this.callback = callback;
this.address = address;
this.endpoint = Endpoint.create(this);
this.endpoint.publish(address);
}
public void stop() {
this.endpoint.stop();
}
public W3CEndpointReference getEpr() {
return this.endpoint.getEndpointReference(W3CEndpointReference.class);
}
public SubscribeResponse subscribe(
@WebParam(partName = "SubscribeRequest", name = "Subscribe",
targetNamespace = "http://docs.oasis-open.org/wsn/b-2") Subscribe subscribeRequest)
//CHECKSTYLE:OFF - WS-Notification spec throws a lot of faults
throws InvalidTopicExpressionFault, ResourceUnknownFault, InvalidProducerPropertiesExpressionFault,
UnrecognizedPolicyRequestFault, TopicExpressionDialectUnknownFault, NotifyMessageNotSupportedFault,
InvalidFilterFault, UnsupportedPolicyRequestFault, InvalidMessageContentExpressionFault,
SubscribeCreationFailedFault, TopicNotSupportedFault, UnacceptableInitialTerminationTimeFault {
//CHECKSYTLE:ON
TopicExpressionType topic = null;
if (subscribeRequest.getFilter() != null) {
for (Object f : subscribeRequest.getFilter().getAny()) {
JAXBElement e = null;
if (f instanceof JAXBElement) {
e = (JAXBElement) f;
f = e.getValue();
}
if (f instanceof TopicExpressionType) {
if (!e.getName().equals(QNAME_TOPIC_EXPRESSION)) {
InvalidTopicExpressionFaultType fault = new InvalidTopicExpressionFaultType();
throw new InvalidTopicExpressionFault("Unrecognized TopicExpression: " + e, fault);
}
topic = (TopicExpressionType) f;
}
}
}
if (topic == null) {
InvalidFilterFaultType fault = new InvalidFilterFaultType();
throw new InvalidFilterFault("Must specify a topic to subscribe on", fault);
}
PublisherSubscription pub = new PublisherSubscription(topic);
SubscribeResponse response = new SubscribeResponse();
response.setSubscriptionReference(pub.getEpr());
callback.subscribe(topic);
return response;
}
protected void unsubscribe(TopicExpressionType topic) {
callback.unsubscribe(topic);
}
public GetCurrentMessageResponse getCurrentMessage(
@WebParam(partName = "GetCurrentMessageRequest", name = "GetCurrentMessage",
targetNamespace = "http://docs.oasis-open.org/wsn/b-2")
GetCurrentMessage getCurrentMessageRequest)
//CHECKSTYLE:OFF - WS-Notification spec throws a lot of faults
throws InvalidTopicExpressionFault, ResourceUnknownFault, TopicExpressionDialectUnknownFault,
MultipleTopicsSpecifiedFault, NoCurrentMessageOnTopicFault, TopicNotSupportedFault {
//CHECKSTYLE:ON
NoCurrentMessageOnTopicFaultType fault = new NoCurrentMessageOnTopicFaultType();
throw new NoCurrentMessageOnTopicFault("There is no current message on this topic.", fault);
}
@WebService(endpointInterface = "org.oasis_open.docs.wsn.bw_2.SubscriptionManager")
protected class PublisherSubscription implements SubscriptionManager {
private final String id;
private final TopicExpressionType topic;
private final Endpoint endpoint;
public PublisherSubscription(TopicExpressionType topic) {
this.topic = topic;
this.id = idGenerator.generateSanitizedId();
this.endpoint = Endpoint.create(this);
this.endpoint.publish(address + "/subscriptions/" + this.id);
}
public W3CEndpointReference getEpr() {
return endpoint.getEndpointReference(W3CEndpointReference.class);
}
public UnsubscribeResponse unsubscribe(
@WebParam(partName = "UnsubscribeRequest",
name = "Unsubscribe",
targetNamespace = "http://docs.oasis-open.org/wsn/b-2")
Unsubscribe unsubscribeRequest)
throws ResourceUnknownFault, UnableToDestroySubscriptionFault {
Publisher.this.unsubscribe(topic);
return new UnsubscribeResponse();
}
public RenewResponse renew(
@WebParam(partName = "RenewRequest", name = "Renew",
targetNamespace = "http://docs.oasis-open.org/wsn/b-2") Renew renewRequest)
throws ResourceUnknownFault, UnacceptableTerminationTimeFault {
throw new UnsupportedOperationException();
}
}
}